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authorAngel Pons <th3fanbus@gmail.com>2020-03-16 23:17:32 +0100
committerMatt DeVillier <matt.devillier@gmail.com>2020-03-18 21:42:05 +0000
commit7c49cb8f9ca86e791c392da40e7f0d3cb7ed47f3 (patch)
treea9d37cd90987d0c5e17c7a5bb1c6380c7cda8eef /src/northbridge
parent1cd7d3e664fcf119a2b2f5e3fd8824b5682c6807 (diff)
downloadcoreboot-7c49cb8f9ca86e791c392da40e7f0d3cb7ed47f3.tar.xz
nb/intel/sandybridge: Tidy up code and comments
- Reformat some lines of code - Move MCHBAR registers and documentation into a separate file - Add a few missing macros - Rename some registers - Rewrite several comments - Use C-style comments for consistency - Rewrite some hex constants - Use HOST_BRIDGE instead of PCI_DEV(0, 0, 0) With BUILD_TIMELESS=1, this commit does not change the result of: - Asus P8Z77-V LX2 with native raminit. - Asus P8Z77-M PRO with MRC raminit. Change-Id: I6e113e48afd685ca63cfcb11ff9fcf9df6e41e46 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39599 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/northbridge')
-rw-r--r--src/northbridge/intel/sandybridge/acpi.c50
-rw-r--r--src/northbridge/intel/sandybridge/bootblock.c18
-rw-r--r--src/northbridge/intel/sandybridge/chip.h24
-rw-r--r--src/northbridge/intel/sandybridge/early_init.c134
-rw-r--r--src/northbridge/intel/sandybridge/finalize.c46
-rw-r--r--src/northbridge/intel/sandybridge/gma.c98
-rw-r--r--src/northbridge/intel/sandybridge/gma.h9
-rw-r--r--src/northbridge/intel/sandybridge/mchbar_regs.h430
-rw-r--r--src/northbridge/intel/sandybridge/memmap.c28
-rw-r--r--src/northbridge/intel/sandybridge/northbridge.c135
-rw-r--r--src/northbridge/intel/sandybridge/pcie.c14
-rw-r--r--src/northbridge/intel/sandybridge/pei_data.h70
-rw-r--r--src/northbridge/intel/sandybridge/raminit.c214
-rw-r--r--src/northbridge/intel/sandybridge/raminit.h2
-rw-r--r--src/northbridge/intel/sandybridge/raminit_common.c1542
-rw-r--r--src/northbridge/intel/sandybridge/raminit_common.h66
-rw-r--r--src/northbridge/intel/sandybridge/raminit_ivy.c417
-rw-r--r--src/northbridge/intel/sandybridge/raminit_mrc.c194
-rw-r--r--src/northbridge/intel/sandybridge/raminit_native.h4
-rw-r--r--src/northbridge/intel/sandybridge/raminit_sandy.c224
-rw-r--r--src/northbridge/intel/sandybridge/romstage.c14
-rw-r--r--src/northbridge/intel/sandybridge/sandybridge.h290
22 files changed, 2027 insertions, 1996 deletions
diff --git a/src/northbridge/intel/sandybridge/acpi.c b/src/northbridge/intel/sandybridge/acpi.c
index 074e9413fa..d0434259d4 100644
--- a/src/northbridge/intel/sandybridge/acpi.c
+++ b/src/northbridge/intel/sandybridge/acpi.c
@@ -33,38 +33,39 @@ unsigned long acpi_fill_mcfg(unsigned long current)
if (!dev)
return current;
- pciexbar_reg=pci_read_config32(dev, PCIEXBAR);
+ pciexbar_reg = pci_read_config32(dev, PCIEXBAR);
- // MMCFG not supported or not enabled.
+ /* MMCFG not supported or not enabled */
if (!(pciexbar_reg & (1 << 0)))
return current;
switch ((pciexbar_reg >> 1) & 3) {
- case 0: // 256MB
- pciexbar = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28));
+ case 0: /* 256MB */
+ pciexbar = pciexbar_reg & (0xffffffffULL << 28);
max_buses = 256;
break;
- case 1: // 128M
- pciexbar = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27));
+ case 1: /* 128M */
+ pciexbar = pciexbar_reg & (0xffffffffULL << 27);
max_buses = 128;
break;
- case 2: // 64M
- pciexbar = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)|(1 << 26));
+ case 2: /* 64M */
+ pciexbar = pciexbar_reg & (0xffffffffULL << 26);
max_buses = 64;
break;
- default: // RSVD
+ default: /* RSVD */
return current;
}
if (!pciexbar)
return current;
- current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) current,
- pciexbar, 0x0, 0x0, max_buses - 1);
+ current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) current, pciexbar, 0, 0,
+ max_buses - 1);
return current;
}
+
static unsigned long acpi_create_igfx_rmrr(const unsigned long current)
{
const u32 base_mask = ~(u32)(MiB - 1);
@@ -73,7 +74,7 @@ static unsigned long acpi_create_igfx_rmrr(const unsigned long current)
if (!host)
return 0;
- const u32 bgsm = pci_read_config32(host, BGSM) & base_mask;
+ const u32 bgsm = pci_read_config32(host, BGSM) & base_mask;
const u32 tolud = pci_read_config32(host, TOLUD) & base_mask;
if (!bgsm || !tolud)
return 0;
@@ -89,7 +90,7 @@ static unsigned long acpi_fill_dmar(unsigned long current)
unsigned long tmp;
tmp = current;
- current += acpi_create_dmar_drhd(current, 0, 0, IOMMU_BASE1);
+ current += acpi_create_dmar_drhd(current, 0, 0, GFXVT_BASE);
current += acpi_create_dmar_ds_pci(current, 0, 2, 0);
current += acpi_create_dmar_ds_pci(current, 0, 2, 1);
acpi_dmar_drhd_fixup(tmp, current);
@@ -104,34 +105,37 @@ static unsigned long acpi_fill_dmar(unsigned long current)
}
const unsigned long tmp = current;
- current += acpi_create_dmar_drhd(current,
- DRHD_INCLUDE_PCI_ALL, 0, IOMMU_BASE2);
- current += acpi_create_dmar_ds_ioapic(current,
- 2, PCH_IOAPIC_PCI_BUS, PCH_IOAPIC_PCI_SLOT, 0);
+ current += acpi_create_dmar_drhd(current, DRHD_INCLUDE_PCI_ALL, 0, VTVC0_BASE);
+
+ current += acpi_create_dmar_ds_ioapic(current, 2, PCH_IOAPIC_PCI_BUS,
+ PCH_IOAPIC_PCI_SLOT, 0);
+
size_t i;
for (i = 0; i < 8; ++i)
- current += acpi_create_dmar_ds_msi_hpet(current,
- 0, PCH_HPET_PCI_BUS, PCH_HPET_PCI_SLOT, i);
+ current += acpi_create_dmar_ds_msi_hpet(current, 0, PCH_HPET_PCI_BUS,
+ PCH_HPET_PCI_SLOT, i);
+
acpi_dmar_drhd_fixup(tmp, current);
return current;
}
-unsigned long northbridge_write_acpi_tables(struct device *const dev,
- unsigned long current,
+unsigned long northbridge_write_acpi_tables(struct device *const dev, unsigned long current,
struct acpi_rsdp *const rsdp)
{
- const u32 capid0_a = pci_read_config32(dev, 0xe4);
+ const u32 capid0_a = pci_read_config32(dev, CAPID0_A);
if (capid0_a & (1 << 23))
return current;
printk(BIOS_DEBUG, "ACPI: * DMAR\n");
+
acpi_dmar_t *const dmar = (acpi_dmar_t *)current;
+
acpi_create_dmar(dmar, DMAR_INTR_REMAP, acpi_fill_dmar);
current += dmar->header.length;
current = acpi_align_current(current);
- acpi_add_table(rsdp, dmar);
+ acpi_add_table(rsdp, dmar);
current = acpi_align_current(current);
printk(BIOS_DEBUG, "current = %lx\n", current);
diff --git a/src/northbridge/intel/sandybridge/bootblock.c b/src/northbridge/intel/sandybridge/bootblock.c
index b6ba395080..9dfeed6a4a 100644
--- a/src/northbridge/intel/sandybridge/bootblock.c
+++ b/src/northbridge/intel/sandybridge/bootblock.c
@@ -20,19 +20,17 @@ void bootblock_early_northbridge_init(void)
uint32_t reg;
/*
- * The "io" variant of the config access is explicitly used to
- * setup the PCIEXBAR because CONFIG_MMCONF_SUPPORT is set to
- * to true. That way all subsequent non-explicit config accesses use
- * MCFG. This code also assumes that bootblock_northbridge_init() is
- * the first thing called in the non-asm boot block code. The final
- * assumption is that no assembly code is using the
+ * The "io" variant of the config access is explicitly used to setup the
+ * PCIEXBAR because CONFIG_MMCONF_SUPPORT is set to to true. That way, all
+ * subsequent non-explicit config accesses use MCFG. This code also assumes
+ * that bootblock_northbridge_init() is the first thing called in the non-asm
+ * boot block code. The final assumption is that no assembly code is using the
* CONFIG_MMCONF_SUPPORT option to do PCI config accesses.
*
- * The PCIEXBAR is assumed to live in the memory mapped IO space under
- * 4GiB.
+ * The PCIEXBAR is assumed to live in the memory mapped IO space under 4GiB.
*/
reg = 0;
- pci_io_write_config32(PCI_DEV(0,0,0), PCIEXBAR + 4, reg);
+ pci_io_write_config32(HOST_BRIDGE, PCIEXBAR + 4, reg);
reg = CONFIG_MMCONF_BASE_ADDRESS | 4 | 1; /* 64MiB - 0-63 buses. */
- pci_io_write_config32(PCI_DEV(0,0,0), PCIEXBAR, reg);
+ pci_io_write_config32(HOST_BRIDGE, PCIEXBAR, reg);
}
diff --git a/src/northbridge/intel/sandybridge/chip.h b/src/northbridge/intel/sandybridge/chip.h
index 5f5bf31f34..83181567a5 100644
--- a/src/northbridge/intel/sandybridge/chip.h
+++ b/src/northbridge/intel/sandybridge/chip.h
@@ -19,9 +19,9 @@
/*
* Digital Port Hotplug Enable:
- * 0x04 = Enabled, 2ms short pulse
+ * 0x04 = Enabled, 2ms short pulse
* 0x05 = Enabled, 4.5ms short pulse
- * 0x06 = Enabled, 6ms short pulse
+ * 0x06 = Enabled, 6ms short pulse
* 0x07 = Enabled, 100ms short pulse
*/
struct northbridge_intel_sandybridge_config {
@@ -48,7 +48,7 @@ struct northbridge_intel_sandybridge_config {
struct i915_gpu_controller_info gfx;
/*
- * Maximum PCI mmio size in MiB.
+ * Maximum PCI MMIO size in MiB.
*/
u16 pci_mmio_size;
@@ -63,7 +63,8 @@ struct northbridge_intel_sandybridge_config {
bool ec_present;
bool ddr3lv_support;
- /* N mode functionality. Leave this setting at 0.
+ /*
+ * N mode functionality. Leave this setting at 0.
* 0 Auto
* 1 1N
* 2 2N
@@ -74,12 +75,13 @@ struct northbridge_intel_sandybridge_config {
DDR_NMODE_2N,
} nmode;
- /* DDR refresh rate config. JEDEC Standard No.21-C Annex K allows
- * for DIMM SPD data to specify whether double-rate is required for
- * extended operating temperature range.
- * 0 Enable double rate based upon temperature thresholds
- * 1 Normal rate
- * 2 Always enable double rate
+ /*
+ * DDR refresh rate config. JEDEC Standard No.21-C Annex K allows for DIMM SPD data to
+ * specify whether double-rate is required for extended operating temperature range.
+ *
+ * 0 Enable double rate based upon temperature thresholds
+ * 1 Normal rate
+ * 2 Always enable double rate
*/
enum {
DDR_REFRESH_RATE_TEMP_THRES = 0,
@@ -93,7 +95,7 @@ struct northbridge_intel_sandybridge_config {
* [1] = overcurrent pin
* [2] = length
*
- * Ports 0-7 can be mapped to OC0-OC3
+ * Ports 0-7 can be mapped to OC0-OC3
* Ports 8-13 can be mapped to OC4-OC7
*
* Port Length
diff --git a/src/northbridge/intel/sandybridge/early_init.c b/src/northbridge/intel/sandybridge/early_init.c
index 10ac071f52..390fadca65 100644
--- a/src/northbridge/intel/sandybridge/early_init.c
+++ b/src/northbridge/intel/sandybridge/early_init.c
@@ -25,49 +25,49 @@
static void systemagent_vtd_init(void)
{
- const u32 capid0_a = pci_read_config32(PCI_DEV(0, 0, 0), CAPID0_A);
+ const u32 capid0_a = pci_read_config32(HOST_BRIDGE, CAPID0_A);
if (capid0_a & (1 << 23))
return;
- /* setup BARs */
- MCHBAR32(VTD1_BASE + 4) = IOMMU_BASE1 >> 32;
- MCHBAR32(VTD1_BASE) = IOMMU_BASE1 | 1;
- MCHBAR32(VTD2_BASE + 4) = IOMMU_BASE2 >> 32;
- MCHBAR32(VTD2_BASE) = IOMMU_BASE2 | 1;
+ /* Setup BARs */
+ MCHBAR32(GFXVTBAR + 4) = GFXVT_BASE >> 32;
+ MCHBAR32(GFXVTBAR) = GFXVT_BASE | 1;
+ MCHBAR32(VTVC0BAR + 4) = VTVC0_BASE >> 32;
+ MCHBAR32(VTVC0BAR) = VTVC0_BASE | 1;
- /* lock policies */
- write32((void *)(IOMMU_BASE1 + 0xff0), 0x80000000);
+ /* Lock policies */
+ write32((void *)(GFXVT_BASE + 0xff0), 0x80000000);
const struct device *const azalia = pcidev_on_root(0x1b, 0);
if (azalia && azalia->enabled) {
- write32((void *)(IOMMU_BASE2 + 0xff0), 0x20000000);
- write32((void *)(IOMMU_BASE2 + 0xff0), 0xa0000000);
+ write32((void *)(VTVC0_BASE + 0xff0), 0x20000000);
+ write32((void *)(VTVC0_BASE + 0xff0), 0xa0000000);
} else {
- write32((void *)(IOMMU_BASE2 + 0xff0), 0x80000000);
+ write32((void *)(VTVC0_BASE + 0xff0), 0x80000000);
}
}
static void enable_pam_region(void)
{
- pci_write_config8(PCI_DEV(0, 0x00, 0), PAM0, 0x30);
- pci_write_config8(PCI_DEV(0, 0x00, 0), PAM1, 0x33);
- pci_write_config8(PCI_DEV(0, 0x00, 0), PAM2, 0x33);
- pci_write_config8(PCI_DEV(0, 0x00, 0), PAM3, 0x33);
- pci_write_config8(PCI_DEV(0, 0x00, 0), PAM4, 0x33);
- pci_write_config8(PCI_DEV(0, 0x00, 0), PAM5, 0x33);
- pci_write_config8(PCI_DEV(0, 0x00, 0), PAM6, 0x33);
+ pci_write_config8(HOST_BRIDGE, PAM0, 0x30);
+ pci_write_config8(HOST_BRIDGE, PAM1, 0x33);
+ pci_write_config8(HOST_BRIDGE, PAM2, 0x33);
+ pci_write_config8(HOST_BRIDGE, PAM3, 0x33);
+ pci_write_config8(HOST_BRIDGE, PAM4, 0x33);
+ pci_write_config8(HOST_BRIDGE, PAM5, 0x33);
+ pci_write_config8(HOST_BRIDGE, PAM6, 0x33);
}
static void sandybridge_setup_bars(void)
{
printk(BIOS_DEBUG, "Setting up static northbridge registers...");
/* Set up all hardcoded northbridge BARs */
- pci_write_config32(PCI_DEV(0, 0x00, 0), EPBAR, DEFAULT_EPBAR | 1);
- pci_write_config32(PCI_DEV(0, 0x00, 0), EPBAR + 4, (0LL+DEFAULT_EPBAR) >> 32);
- pci_write_config32(PCI_DEV(0, 0x00, 0), MCHBAR, (uintptr_t)DEFAULT_MCHBAR | 1);
- pci_write_config32(PCI_DEV(0, 0x00, 0), MCHBAR + 4, (0LL+(uintptr_t)DEFAULT_MCHBAR) >> 32);
- pci_write_config32(PCI_DEV(0, 0x00, 0), DMIBAR, (uintptr_t)DEFAULT_DMIBAR | 1);
- pci_write_config32(PCI_DEV(0, 0x00, 0), DMIBAR + 4, (0LL+(uintptr_t)DEFAULT_DMIBAR) >> 32);
+ pci_write_config32(HOST_BRIDGE, EPBAR, DEFAULT_EPBAR | 1);
+ pci_write_config32(HOST_BRIDGE, EPBAR + 4, (0LL + DEFAULT_EPBAR) >> 32);
+ pci_write_config32(HOST_BRIDGE, MCHBAR, (uintptr_t)DEFAULT_MCHBAR | 1);
+ pci_write_config32(HOST_BRIDGE, MCHBAR + 4, (0LL + (uintptr_t)DEFAULT_MCHBAR) >> 32);
+ pci_write_config32(HOST_BRIDGE, DMIBAR, (uintptr_t)DEFAULT_DMIBAR | 1);
+ pci_write_config32(HOST_BRIDGE, DMIBAR + 4, (0LL + (uintptr_t)DEFAULT_DMIBAR) >> 32);
printk(BIOS_DEBUG, " done\n");
}
@@ -76,10 +76,9 @@ static void sandybridge_setup_graphics(void)
{
u32 reg32;
u16 reg16;
- u8 reg8;
- u8 gfxsize;
+ u8 reg8, gfxsize;
- reg16 = pci_read_config16(PCI_DEV(0,2,0), PCI_DEVICE_ID);
+ reg16 = pci_read_config16(PCI_DEV(0, 2, 0), PCI_DEVICE_ID);
switch (reg16) {
case 0x0102: /* GT1 Desktop */
case 0x0106: /* GT1 Mobile */
@@ -105,7 +104,7 @@ static void sandybridge_setup_graphics(void)
/* Setup IGD memory by setting GGC[7:3] = 1 for 32MB */
gfxsize = 0;
}
- reg16 = pci_read_config16(PCI_DEV(0,0,0), GGC);
+ reg16 = pci_read_config16(HOST_BRIDGE, GGC);
reg16 &= ~0x00f8;
reg16 |= (gfxsize + 1) << 3;
/* Program GTT memory by setting GGC[9:8] = 2MB */
@@ -113,7 +112,7 @@ static void sandybridge_setup_graphics(void)
reg16 |= 2 << 8;
/* Enable VGA decode */
reg16 &= ~0x0002;
- pci_write_config16(PCI_DEV(0,0,0), GGC, reg16);
+ pci_write_config16(HOST_BRIDGE, GGC, reg16);
/* Enable 256MB aperture */
reg8 = pci_read_config8(PCI_DEV(0, 2, 0), MSAC);
@@ -123,7 +122,7 @@ static void sandybridge_setup_graphics(void)
/* Erratum workarounds */
reg32 = MCHBAR32(SAPMCTL);
- reg32 |= (1 << 9)|(1 << 10);
+ reg32 |= (1 << 9) | (1 << 10);
MCHBAR32(SAPMCTL) = reg32;
/* Enable SA Clock Gating */
@@ -131,52 +130,56 @@ static void sandybridge_setup_graphics(void)
MCHBAR32(SAPMCTL) = reg32 | 1;
/* GPU RC6 workaround for sighting 366252 */
- reg32 = MCHBAR32(0x5d14);
+ reg32 = MCHBAR32(SSKPD_HI);
reg32 |= (1 << 31);
- MCHBAR32(0x5d14) = reg32;
+ MCHBAR32(SSKPD_HI) = reg32;
- /* VLW */
+ /* VLW (Virtual Legacy Wire?) */
reg32 = MCHBAR32(0x6120);
reg32 &= ~(1 << 0);
MCHBAR32(0x6120) = reg32;
- reg32 = MCHBAR32(PAIR_CTL);
+ reg32 = MCHBAR32(INTRDIRCTL);
reg32 |= (1 << 4) | (1 << 5);
- MCHBAR32(PAIR_CTL) = reg32;
+ MCHBAR32(INTRDIRCTL) = reg32;
}
static void start_peg_link_training(void)
{
- u32 tmp;
- u32 deven;
-
- /* PEG on IvyBridge+ needs a special startup sequence.
- * As the MRC has its own initialization code skip it. */
- if (((pci_read_config16(PCI_DEV(0, 0, 0), PCI_DEVICE_ID) &
- BASE_REV_MASK) != BASE_REV_IVB) ||
- CONFIG(HAVE_MRC))
+ u32 tmp, deven;
+
+ const u16 base_rev = pci_read_config16(HOST_BRIDGE, PCI_DEVICE_ID) & BASE_REV_MASK;
+ /*
+ * PEG on IvyBridge+ needs a special startup sequence.
+ * As the MRC has its own initialization code skip it.
+ */
+ if ((base_rev != BASE_REV_IVB) || CONFIG(HAVE_MRC))
return;
- deven = pci_read_config32(PCI_DEV(0, 0, 0), DEVEN);
+ deven = pci_read_config32(HOST_BRIDGE, DEVEN);
+ /*
+ * For each PEG device, set bit 5 to use three retries for OC (Offset Calibration).
+ * We also clear DEFER_OC (bit 16) in order to start PEG training.
+ */
if (deven & DEVEN_PEG10) {
- tmp = pci_read_config32(PCI_DEV(0, 1, 0), 0xC24) & ~(1 << 16);
- pci_write_config32(PCI_DEV(0, 1, 0), 0xC24, tmp | (1 << 5));
+ tmp = pci_read_config32(PCI_DEV(0, 1, 0), AFE_PWRON) & ~(1 << 16);
+ pci_write_config32(PCI_DEV(0, 1, 0), AFE_PWRON, tmp | (1 << 5));
}
if (deven & DEVEN_PEG11) {
- tmp = pci_read_config32(PCI_DEV(0, 1, 1), 0xC24) & ~(1 << 16);
- pci_write_config32(PCI_DEV(0, 1, 1), 0xC24, tmp | (1 << 5));
+ tmp = pci_read_config32(PCI_DEV(0, 1, 1), AFE_PWRON) & ~(1 << 16);
+ pci_write_config32(PCI_DEV(0, 1, 1), AFE_PWRON, tmp | (1 << 5));
}
if (deven & DEVEN_PEG12) {
- tmp = pci_read_config32(PCI_DEV(0, 1, 2), 0xC24) & ~(1 << 16);
- pci_write_config32(PCI_DEV(0, 1, 2), 0xC24, tmp | (1 << 5));
+ tmp = pci_read_config32(PCI_DEV(0, 1, 2), AFE_PWRON) & ~(1 << 16);
+ pci_write_config32(PCI_DEV(0, 1, 2), AFE_PWRON, tmp | (1 << 5));
}
if (deven & DEVEN_PEG60) {
- tmp = pci_read_config32(PCI_DEV(0, 6, 0), 0xC24) & ~(1 << 16);
- pci_write_config32(PCI_DEV(0, 6, 0), 0xC24, tmp | (1 << 5));
+ tmp = pci_read_config32(PCI_DEV(0, 6, 0), AFE_PWRON) & ~(1 << 16);
+ pci_write_config32(PCI_DEV(0, 6, 0), AFE_PWRON, tmp | (1 << 5));
}
}
@@ -187,17 +190,17 @@ void systemagent_early_init(void)
u8 reg8;
/* Device ID Override Enable should be done very early */
- capid0_a = pci_read_config32(PCI_DEV(0, 0, 0), 0xe4);
+ capid0_a = pci_read_config32(HOST_BRIDGE, CAPID0_A);
if (capid0_a & (1 << 10)) {
const size_t is_mobile = get_platform_type() == PLATFORM_MOBILE;
- reg8 = pci_read_config8(PCI_DEV(0, 0, 0), 0xf3);
+ reg8 = pci_read_config8(HOST_BRIDGE, DIDOR);
reg8 &= ~7; /* Clear 2:0 */
if (is_mobile)
reg8 |= 1; /* Set bit 0 */
- pci_write_config8(PCI_DEV(0, 0, 0), 0xf3, reg8);
+ pci_write_config8(HOST_BRIDGE, DIDOR, reg8);
}
/* Setup all BARs required for early PCIe and raminit */
@@ -210,24 +213,25 @@ void systemagent_early_init(void)
systemagent_vtd_init();
/* Device Enable, don't touch PEG bits */
- deven = pci_read_config32(PCI_DEV(0, 0, 0), DEVEN) | DEVEN_IGD;
- pci_write_config32(PCI_DEV(0, 0, 0), DEVEN, deven);
+ deven = pci_read_config32(HOST_BRIDGE, DEVEN) | DEVEN_IGD;
+ pci_write_config32(HOST_BRIDGE, DEVEN, deven);
sandybridge_setup_graphics();
- /* Write magic value to start PEG link training.
- * This should be done in PCI device enumeration, but
- * the PCIe specification requires to wait at least 100msec
- * after reset for devices to come up.
- * As we don't want to increase boot time, enable it early and
- * assume the PEG is up as soon as PCI enumeration starts.
- * TODO: use time stamps to ensure the timings are met */
+ /*
+ * Write magic values to start PEG link training. This should be done in PCI device
+ * enumeration, but the PCIe specification requires to wait at least 100msec after
+ * reset for devices to come up. As we don't want to increase boot time, enable it
+ * early and assume that PEG is up as soon as PCI enumeration starts.
+ *
+ * TODO: use timestamps to ensure the timings are met.
+ */
start_peg_link_training();
}
void northbridge_romstage_finalize(int s3resume)
{
- MCHBAR16(SSKPD) = 0xCAFE;
+ MCHBAR16(SSKPD_HI) = 0xCAFE;
romstage_handoff_init(s3resume);
}
diff --git a/src/northbridge/intel/sandybridge/finalize.c b/src/northbridge/intel/sandybridge/finalize.c
index 6a3156e4bc..ab2a21c37f 100644
--- a/src/northbridge/intel/sandybridge/finalize.c
+++ b/src/northbridge/intel/sandybridge/finalize.c
@@ -16,36 +16,34 @@
#include <device/pci_ops.h>
#include "sandybridge.h"
-#define PCI_DEV_SNB PCI_DEV(0, 0, 0)
-
void intel_sandybridge_finalize_smm(void)
{
- pci_or_config16(PCI_DEV_SNB, GGC, 1 << 0);
- pci_or_config16(PCI_DEV_SNB, PAVPC, 1 << 2);
- pci_or_config32(PCI_DEV_SNB, DPR, 1 << 0);
- pci_or_config32(PCI_DEV_SNB, MESEG_MASK, MELCK);
- pci_or_config32(PCI_DEV_SNB, REMAPBASE, 1 << 0);
- pci_or_config32(PCI_DEV_SNB, REMAPLIMIT, 1 << 0);
- pci_or_config32(PCI_DEV_SNB, TOM, 1 << 0);
- pci_or_config32(PCI_DEV_SNB, TOUUD, 1 << 0);
- pci_or_config32(PCI_DEV_SNB, BDSM, 1 << 0);
- pci_or_config32(PCI_DEV_SNB, BGSM, 1 << 0);
- pci_or_config32(PCI_DEV_SNB, TSEGMB, 1 << 0);
- pci_or_config32(PCI_DEV_SNB, TOLUD, 1 << 0);
+ pci_or_config16(HOST_BRIDGE, GGC, 1 << 0);
+ pci_or_config16(HOST_BRIDGE, PAVPC, 1 << 2);
+ pci_or_config32(HOST_BRIDGE, DPR, 1 << 0);
+ pci_or_config32(HOST_BRIDGE, MESEG_MASK, MELCK);
+ pci_or_config32(HOST_BRIDGE, REMAPBASE, 1 << 0);
+ pci_or_config32(HOST_BRIDGE, REMAPLIMIT, 1 << 0);
+ pci_or_config32(HOST_BRIDGE, TOM, 1 << 0);
+ pci_or_config32(HOST_BRIDGE, TOUUD, 1 << 0);
+ pci_or_config32(HOST_BRIDGE, BDSM, 1 << 0);
+ pci_or_config32(HOST_BRIDGE, BGSM, 1 << 0);
+ pci_or_config32(HOST_BRIDGE, TSEGMB, 1 << 0);
+ pci_or_config32(HOST_BRIDGE, TOLUD, 1 << 0);
- MCHBAR32_OR(MMIO_PAVP_CTL, 1 << 0); /* PAVP */
- MCHBAR32_OR(SAPMCTL, 1 << 31); /* SA PM */
- MCHBAR32_OR(0x6020, 1 << 0); /* UMA GFX */
- MCHBAR32_OR(0x63fc, 1 << 0); /* VTDTRK */
- MCHBAR32_OR(0x6800, 1 << 31);
- MCHBAR32_OR(0x7000, 1 << 31);
- MCHBAR32_OR(0x77fc, 1 << 0);
+ MCHBAR32_OR(PAVP_MSG, 1 << 0); /* PAVP */
+ MCHBAR32_OR(SAPMCTL, 1 << 31); /* SA PM */
+ MCHBAR32_OR(UMAGFXCTL, 1 << 0); /* UMA GFX */
+ MCHBAR32_OR(VTDTRKLCK, 1 << 0); /* VTDTRK */
+ MCHBAR32_OR(REQLIM, 1 << 31);
+ MCHBAR32_OR(DMIVCLIM, 1 << 31);
+ MCHBAR32_OR(CRDTLCK, 1 << 0);
/* Memory Controller Lockdown */
MCHBAR8(MC_LOCK) = 0x8f;
/* Read+write the following */
- MCHBAR32(0x6030) = MCHBAR32(0x6030);
- MCHBAR32(0x6034) = MCHBAR32(0x6034);
- MCHBAR32(0x6008) = MCHBAR32(0x6008);
+ MCHBAR32(VDMBDFBARKVM) = MCHBAR32(VDMBDFBARKVM);
+ MCHBAR32(VDMBDFBARPAVP) = MCHBAR32(VDMBDFBARPAVP);
+ MCHBAR32(HDAUDRID) = MCHBAR32(HDAUDRID);
}
diff --git a/src/northbridge/intel/sandybridge/gma.c b/src/northbridge/intel/sandybridge/gma.c
index e6dfbc4548..f0232e069a 100644
--- a/src/northbridge/intel/sandybridge/gma.c
+++ b/src/northbridge/intel/sandybridge/gma.c
@@ -57,7 +57,7 @@ static const struct gt_powermeter snb_pm_gt1[] = {
{ 0xa240, 0x00000000 },
{ 0xa244, 0x00000000 },
{ 0xa248, 0x8000421e },
- { 0 }
+ { 0 },
};
static const struct gt_powermeter snb_pm_gt2[] = {
@@ -80,7 +80,7 @@ static const struct gt_powermeter snb_pm_gt2[] = {
{ 0xa240, 0x00000000 },
{ 0xa244, 0x00000000 },
{ 0xa248, 0x8000421e },
- { 0 }
+ { 0 },
};
static const struct gt_powermeter ivb_pm_gt1[] = {
@@ -136,7 +136,7 @@ static const struct gt_powermeter ivb_pm_gt1[] = {
{ 0xaa3c, 0x00001c00 },
{ 0xaa54, 0x00000004 },
{ 0xaa60, 0x00060000 },
- { 0 }
+ { 0 },
};
static const struct gt_powermeter ivb_pm_gt2_17w[] = {
@@ -192,7 +192,7 @@ static const struct gt_powermeter ivb_pm_gt2_17w[] = {
{ 0xaa3c, 0x00003900 },
{ 0xaa54, 0x00000008 },
{ 0xaa60, 0x00110000 },
- { 0 }
+ { 0 },
};
static const struct gt_powermeter ivb_pm_gt2_35w[] = {
@@ -248,12 +248,12 @@ static const struct gt_powermeter ivb_pm_gt2_35w[] = {
{ 0xaa3c, 0x00003900 },
{ 0xaa54, 0x00000008 },
{ 0xaa60, 0x00110000 },
- { 0 }
+ { 0 },
};
-/* some vga option roms are used for several chipsets but they only have one
- * PCI ID in their header. If we encounter such an option rom, we need to do
- * the mapping ourselves
+/*
+ * Some VGA option roms are used for several chipsets but they only have one PCI ID in their
+ * header. If we encounter such an option rom, we need to do the mapping ourselves.
*/
u32 map_oprom_vendev(u32 vendev)
@@ -262,17 +262,17 @@ u32 map_oprom_vendev(u32 vendev)
switch (vendev) {
case 0x80860102: /* SNB GT1 Desktop */
- case 0x8086010a: /* SNB GT1 Server */
+ case 0x8086010a: /* SNB GT1 Server */
case 0x80860112: /* SNB GT2 Desktop */
- case 0x80860116: /* SNB GT2 Mobile */
+ case 0x80860116: /* SNB GT2 Mobile */
case 0x80860122: /* SNB GT2 Desktop >=1.3GHz */
- case 0x80860126: /* SNB GT2 Mobile >=1.3GHz */
+ case 0x80860126: /* SNB GT2 Mobile >=1.3GHz */
case 0x80860152: /* IVB GT1 Desktop */
- case 0x80860156: /* IVB GT1 Mobile */
+ case 0x80860156: /* IVB GT1 Mobile */
case 0x80860162: /* IVB GT2 Desktop */
- case 0x80860166: /* IVB GT2 Mobile */
- case 0x8086016a: /* IVB GT2 Server */
- new_vendev = 0x80860106;/* SNB GT1 Mobile */
+ case 0x80860166: /* IVB GT2 Mobile */
+ case 0x8086016a: /* IVB GT2 Server */
+ new_vendev = 0x80860106;/* SNB GT1 Mobile */
break;
}
@@ -385,18 +385,15 @@ static void gma_pm_init_pre_vbios(struct device *dev)
if (tdp <= 17) {
/* <=17W ULV */
- printk(BIOS_DEBUG, "IVB GT2 17W "
- "Power Meter Weights\n");
+ printk(BIOS_DEBUG, "IVB GT2 17W Power Meter Weights\n");
gtt_write_powermeter(ivb_pm_gt2_17w);
} else if ((tdp >= 25) && (tdp <= 35)) {
/* 25W-35W */
- printk(BIOS_DEBUG, "IVB GT2 25W-35W "
- "Power Meter Weights\n");
+ printk(BIOS_DEBUG, "IVB GT2 25W-35W Power Meter Weights\n");
gtt_write_powermeter(ivb_pm_gt2_35w);
} else {
/* All others */
- printk(BIOS_DEBUG, "IVB GT2 35W "
- "Power Meter Weights\n");
+ printk(BIOS_DEBUG, "IVB GT2 35W Power Meter Weights\n");
gtt_write_powermeter(ivb_pm_gt2_35w);
}
}
@@ -552,7 +549,7 @@ static void gma_pm_init_post_vbios(struct device *dev)
/* Setup Digital Port Hotplug */
reg32 = gtt_read(0xc4030);
if (!reg32) {
- reg32 = (conf->gpu_dp_b_hotplug & 0x7) << 2;
+ reg32 = (conf->gpu_dp_b_hotplug & 0x7) << 2;
reg32 |= (conf->gpu_dp_c_hotplug & 0x7) << 10;
reg32 |= (conf->gpu_dp_d_hotplug & 0x7) << 18;
gtt_write(0xc4030, reg32);
@@ -599,15 +596,15 @@ static void gma_enable_swsci(void)
{
u16 reg16;
- /* clear DMISCI status */
+ /* Clear DMISCI status */
reg16 = inw(DEFAULT_PMBASE + TCO1_STS);
reg16 &= DMISCI_STS;
outw(DEFAULT_PMBASE + TCO1_STS, reg16);
- /* clear acpi tco status */
+ /* Clear ACPI TCO status */
outl(DEFAULT_PMBASE + GPE0_STS, TCOSCI_STS);
- /* enable acpi tco scis */
+ /* Enable ACPI TCO SCIs */
reg16 = inw(DEFAULT_PMBASE + GPE0_EN);
reg16 |= TCOSCI_EN;
outw(DEFAULT_PMBASE + GPE0_EN, reg16);
@@ -654,10 +651,9 @@ static void gma_func0_init(struct device *dev)
intel_gma_restore_opregion();
}
-const struct i915_gpu_controller_info *
-intel_gma_get_controller_info(void)
+const struct i915_gpu_controller_info *intel_gma_get_controller_info(void)
{
- struct device *dev = pcidev_on_root(0x2, 0);
+ struct device *dev = pcidev_on_root(2, 0);
if (!dev) {
return NULL;
}
@@ -675,10 +671,8 @@ static void gma_ssdt(struct device *device)
drivers_intel_gma_displays_ssdt_generate(gfx);
}
-static unsigned long
-gma_write_acpi_tables(struct device *const dev,
- unsigned long current,
- struct acpi_rsdp *const rsdp)
+static unsigned long gma_write_acpi_tables(struct device *const dev, unsigned long current,
+ struct acpi_rsdp *const rsdp)
{
igd_opregion_t *opregion = (igd_opregion_t *)current;
global_nvs_t *gnvs;
@@ -706,44 +700,46 @@ static const char *gma_acpi_name(const struct device *dev)
return "GFX0";
}
-/* called by pci set_vga_bridge function */
+/* Called by PCI set_vga_bridge function */
static void gma_func0_disable(struct device *dev)
{
u16 reg16;
struct device *dev_host = pcidev_on_root(0, 0);
reg16 = pci_read_config16(dev_host, GGC);
- reg16 |= (1 << 1); /* disable VGA decode */
+ reg16 |= (1 << 1); /* Disable VGA decode */
pci_write_config16(dev_host, GGC, reg16);
dev->enabled = 0;
}
static struct pci_operations gma_pci_ops = {
- .set_subsystem = pci_dev_set_subsystem,
+ .set_subsystem = pci_dev_set_subsystem,
};
static struct device_operations gma_func0_ops = {
- .read_resources = pci_dev_read_resources,
- .set_resources = pci_dev_set_resources,
- .enable_resources = pci_dev_enable_resources,
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
.acpi_fill_ssdt_generator = gma_ssdt,
- .init = gma_func0_init,
- .scan_bus = 0,
- .enable = 0,
- .disable = gma_func0_disable,
- .ops_pci = &gma_pci_ops,
- .acpi_name = gma_acpi_name,
- .write_acpi_tables = gma_write_acpi_tables,
+ .init = gma_func0_init,
+ .scan_bus = NULL,
+ .enable = NULL,
+ .disable = gma_func0_disable,
+ .ops_pci = &gma_pci_ops,
+ .acpi_name = gma_acpi_name,
+ .write_acpi_tables = gma_write_acpi_tables,
};
-static const unsigned short pci_device_ids[] = { 0x0102, 0x0106, 0x010a, 0x0112,
- 0x0116, 0x0122, 0x0126, 0x0156,
- 0x0166, 0x0162, 0x016a, 0x0152,
- 0 };
+static const unsigned short pci_device_ids[] = {
+ 0x0102, 0x0106, 0x010a, 0x0112,
+ 0x0116, 0x0122, 0x0126, 0x0156,
+ 0x0166, 0x0162, 0x016a, 0x0152,
+ 0
+};
static const struct pci_driver gma __pci_driver = {
- .ops = &gma_func0_ops,
- .vendor = PCI_VENDOR_ID_INTEL,
+ .ops = &gma_func0_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
.devices = pci_device_ids,
};
diff --git a/src/northbridge/intel/sandybridge/gma.h b/src/northbridge/intel/sandybridge/gma.h
index 899edbb1aa..bf04deed5b 100644
--- a/src/northbridge/intel/sandybridge/gma.h
+++ b/src/northbridge/intel/sandybridge/gma.h
@@ -17,9 +17,10 @@
struct i915_gpu_controller_info;
-int i915lightup_sandy(const struct i915_gpu_controller_info *info,
- u32 physbase, u16 pio, u8 *mmio, u32 lfb);
-int i915lightup_ivy(const struct i915_gpu_controller_info *info,
- u32 physbase, u16 pio, u8 *mmio, u32 lfb);
+int i915lightup_sandy(const struct i915_gpu_controller_info *info, u32 physbase, u16 pio,
+ u8 *mmio, u32 lfb);
+
+int i915lightup_ivy(const struct i915_gpu_controller_info *info, u32 physbase, u16 pio,
+ u8 *mmio, u32 lfb);
#endif /* NORTHBRIDGE_INTEL_SANDYBRIDGE_GMA_H */
diff --git a/src/northbridge/intel/sandybridge/mchbar_regs.h b/src/northbridge/intel/sandybridge/mchbar_regs.h
new file mode 100644
index 0000000000..929392bcd6
--- /dev/null
+++ b/src/northbridge/intel/sandybridge/mchbar_regs.h
@@ -0,0 +1,430 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2008 coresystems GmbH
+ * Copyright (C) 2011 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __SANDYBRIDGE_MCHBAR_REGS_H__
+#define __SANDYBRIDGE_MCHBAR_REGS_H__
+
+/*
+ * ### IOSAV command queue notes ###
+ *
+ * Intel provides a command queue of depth four.
+ * Every command is configured by using multiple MCHBAR registers.
+ * On executing the command queue, you have to specify its depth (number of commands).
+ *
+ * The macros for these registers can take some integer parameters, within these bounds:
+ * channel: [0..1]
+ * index: [0..3]
+ * lane: [0..8]
+ *
+ * Note that these ranges are 'closed': both endpoints are included.
+ *
+ *
+ *
+ * ### Register description ###
+ *
+ * IOSAV_n_SP_CMD_ADDR_ch(channel, index)
+ * Sub-sequence command addresses. Controls the address, bank address and slotrank signals.
+ *
+ * Bitfields:
+ * [0..15] Row / Column Address.
+ * [16..18] The result of (10 + [16..18]) is the number of valid row bits.
+ * Note: Value 1 is not implemented. Not that it really matters, though.
+ * Value 7 is reserved, as the hardware does not support it.
+ * [20..22] Bank Address.
+ * [24..25] Rank select. Let's call it "ranksel", as it is mentioned later.
+ *
+ * IOSAV_n_ADDR_UPDATE_ch(channel, index)
+ * How the address shall be updated after executing the sub-sequence command.
+ *
+ * Bitfields:
+ * [0] Increment CAS/RAS by 1.
+ * [1] Increment CAS/RAS by 8.
+ * [2] Increment bank select by 1.
+ * [3..4] Increment rank select by 1, 2 or 3.
+ * [5..9] Known as "addr_wrap". Address bits will wrap around the [addr_wrap..0] range.
+ * [10..11] LFSR update:
+ * 00: Do not use the LFSR function.
+ * 01: Undefined, treat as Reserved.
+ * 10: Apply LFSR on the [addr_wrap..0] bit range.
+ * 11: Apply LFSR on the [addr_wrap..3] bit range.
+ *
+ * [12..15] Update rate. The number of command runs between address updates. For example:
+ * 0: Update every command run.
+ * 1: Update every second command run. That is, half of the command rate.
+ * N: Update after N command runs without updates.
+ *
+ * [16..17] LFSR behavior on the deselect cycles (when no sub-seq command is issued):
+ * 0: No change w.r.t. the last issued command.
+ * 1: LFSR XORs with address & command (excluding CS), but does not update.
+ * 2: LFSR XORs with address & command (excluding CS), and updates.
+ *
+ * IOSAV_n_SP_CMD_CTRL_ch(channel, index)
+ * Special command control register. Controls the DRAM command signals.
+ *
+ * Bitfields:
+ * [0] !RAS signal.
+ * [1] !CAS signal.
+ * [2] !WE signal.
+ * [4..7] CKE, per rank and channel.
+ * [8..11] ODT, per rank and channel.
+ * [12] Chip Select mode control.
+ * [13..16] Chip select, per rank and channel. It works as follows:
+ *
+ * entity CS_BLOCK is
+ * port (
+ * MODE : in std_logic; -- Mode select at [12]
+ * RANKSEL : in std_logic_vector(0 to 3); -- Decoded "ranksel" value
+ * CS_CTL : in std_logic_vector(0 to 3); -- Chip select control at [13..16]
+ * CS_Q : out std_logic_vector(0 to 3) -- CS signals
+ * );
+ * end entity CS_BLOCK;
+ *
+ * architecture RTL of CS_BLOCK is
+ * begin
+ * if MODE = '1' then
+ * CS_Q <= not RANKSEL and CS_CTL;
+ * else
+ * CS_Q <= CS_CTL;
+ * end if;
+ * end architecture RTL;
+ *
+ * [17] Auto Precharge. Only valid when using 10 row bits!
+ *
+ * IOSAV_n_SUBSEQ_CTRL_ch(channel, index)
+ * Sub-sequence parameters. Controls repetititons, delays and data orientation.
+ *
+ * Bitfields:
+ * [0..8] Number of repetitions of the sub-sequence command.
+ * [10..14] Gap, number of clock-cycles to wait before sending the next command.
+ * [16..24] Number of clock-cycles to idle between sub-sequence commands.
+ * [26..27] The direction of the data.
+ * 00: None, does not handle data
+ * 01: Read
+ * 10: Write
+ * 11: Read & Write
+ *
+ * IOSAV_n_ADDRESS_LFSR_ch(channel, index)
+ * 23-bit LFSR state register. It is written into the LFSR when the sub-sequence is loaded,
+ * and then read back from the LFSR when the sub-sequence is done.
+ *
+ * Bitfields:
+ * [0..22] LFSR state.
+ *
+ * IOSAV_SEQ_CTL_ch(channel)
+ * Control the sequence level in IOSAV: number of sub-sequences, iterations, maintenance...
+ *
+ * Bitfields:
+ * [0..7] Number of full sequence executions. When this field becomes non-zero, then the
+ * sequence starts running immediately. This value is decremented after completing
+ * a full sequence iteration. When it is zero, the sequence is done. No decrement
+ * is done if this field is set to 0xff. This is the "infinite repeat" mode, and
+ * it is manually aborted by clearing this field.
+ *
+ * [8..16] Number of wait cycles after each sequence iteration. This wait's purpose is to
+ * allow performing maintenance in infinite loops. When non-zero, RCOMP, refresh
+ * and ZQXS operations can take place.
+ *
+ * [17] Stop-on-error mode: Whether to stop sequence execution when an error occurs.
+ * [18..19] Number of sub-sequences. The programmed value is the index of the last sub-seq.
+ * [20] If set, keep refresh disabled until the next sequence execution.
+ * DANGER: Refresh must be re-enabled within the (9 * tREFI) period!
+ *
+ * [22] If set, sequence execution will not prevent refresh. This cannot be set when
+ * bit [20] is also set, or was set on the previous sequence. This bit exists so
+ * that the sequence machine can be used as a timer without affecting the memory.
+ *
+ * [23] If set, a output pin is asserted on the first detected error. This output can
+ * be used as a trigger for an oscilloscope or a logic analyzer, which is handy.
+ *
+ * IOSAV_DATA_CTL_ch(channel)
+ * Data-related controls in IOSAV mode.
+ *
+ * Bitfields:
+ * [0..7] WDB (Write Data Buffer) pattern length: [0..7] = (length / 8) - 1;
+ * [8..15] WDB read pointer. Points at the data used for IOSAV write transactions.
+ * [16..23] Comparison pointer. Used to compare data from IOSAV read transactions.
+ * [24] If set, increment pointers only when micro-breakpoint is active.
+ *
+ * IOSAV_STATUS_ch(channel)
+ * State of the IOSAV sequence machine. Should be polled after sending an IOSAV sequence.
+ *
+ * Bitfields:
+ * [0] IDLE: IOSAV is sleeping.
+ * [1] BUSY: IOSAV is running a sequence.
+ * [2] DONE: IOSAV has completed a sequence.
+ * [3] ERROR: IOSAV detected an error and stopped on it, when using Stop-on-error.
+ * [4] PANIC: The refresh machine issued a Panic Refresh, and IOSAV was aborted.
+ * [5] RCOMP: RComp failure. Unused, consider Reserved.
+ * [6] Cleared with a new sequence, and set when done and refresh counter is drained.
+ *
+ */
+
+/* Indexed register helper macros */
+#define Gz(r, z) ((r) + ((z) << 8))
+#define Ly(r, y) ((r) + ((y) << 2))
+#define Cx(r, x) ((r) + ((x) << 10))
+#define CxLy(r, x, y) ((r) + ((x) << 10) + ((y) << 2))
+#define GzLy(r, z, y) ((r) + ((z) << 8) + ((y) << 2))
+
+/* Byte lane training register base addresses */
+#define LANEBASE_B0 0x0000
+#define LANEBASE_B1 0x0200
+#define LANEBASE_B2 0x0400
+#define LANEBASE_B3 0x0600
+#define LANEBASE_ECC 0x0800 /* ECC lane is in the middle of the data lanes */
+#define LANEBASE_B4 0x1000
+#define LANEBASE_B5 0x1200
+#define LANEBASE_B6 0x1400
+#define LANEBASE_B7 0x1600
+
+/* Byte lane register offsets */
+#define GDCRTRAININGRESULT(ch, y) GzLy(0x0004, ch, y) /* Test results for PI config */
+#define GDCRTRAININGRESULT1(ch) GDCRTRAININGRESULT(ch, 0) /* 0x0004 */
+#define GDCRTRAININGRESULT2(ch) GDCRTRAININGRESULT(ch, 1) /* 0x0008 */
+#define GDCRRX(ch, rank) GzLy(0x10, ch, rank) /* Time setting for lane Rx */
+#define GDCRTX(ch, rank) GzLy(0x20, ch, rank) /* Time setting for lane Tx */
+
+/* Register definitions */
+#define GDCRCLKRANKSUSED_ch(ch) Gz(0x0c00, ch) /* Indicates which rank is populated */
+#define GDCRCLKCOMP_ch(ch) Gz(0x0c04, ch) /* RCOMP result register */
+#define GDCRCKPICODE_ch(ch) Gz(0x0c14, ch) /* PI coding for DDR CLK pins */
+#define GDCRCKLOGICDELAY_ch(ch) Gz(0x0c18, ch) /* Logic delay of 1 QCLK in CLK slice */
+#define GDDLLFUSE_ch(ch) Gz(0x0c20, ch) /* Used for fuse download to the DLLs */
+#define GDCRCLKDEBUGMUXCFG_ch(ch) Gz(0x0c3c, ch) /* Debug MUX control */
+
+#define GDCRCMDDEBUGMUXCFG_Cz_S(ch) Gz(0x0e3c, ch) /* Debug MUX control */
+
+#define CRCOMPOFST1_ch(ch) Gz(0x1810, ch) /* DQ, CTL and CLK Offset values */
+
+#define GDCRTRAININGMOD_ch(ch) Gz(0x3000, ch) /* Data training mode control */
+#define GDCRTRAININGRESULT1_ch(ch) Gz(0x3004, ch) /* Training results according to PI */
+#define GDCRTRAININGRESULT2_ch(ch) Gz(0x3008, ch)
+
+#define GDCRCTLRANKSUSED_ch(ch) Gz(0x3200, ch) /* Indicates which rank is populated */
+#define GDCRCMDCOMP_ch(ch) Gz(0x3204, ch) /* COMP values register */
+#define GDCRCMDCTLCOMP_ch(ch) Gz(0x3208, ch) /* COMP values register */
+#define GDCRCMDPICODING_ch(ch) Gz(0x320c, ch) /* Command and control PI coding */
+
+#define GDCRTRAININGMOD 0x3400 /* Data training mode control register */
+#define GDCRDATACOMP 0x340c /* COMP values register */
+
+#define CRCOMPOFST2 0x3714 /* CMD DRV, SComp and Static Leg controls */
+
+/* MC per-channel registers */
+#define TC_DBP_ch(ch) Cx(0x4000, ch) /* Timings: BIN */
+#define TC_RAP_ch(ch) Cx(0x4004, ch) /* Timings: Regular access */
+#define TC_RWP_ch(ch) Cx(0x4008, ch) /* Timings: Read / Write */
+#define TC_OTHP_ch(ch) Cx(0x400c, ch) /* Timings: Other parameters */
+#define SCHED_SECOND_CBIT_ch(ch) Cx(0x401c, ch) /* More chicken bits */
+#define SCHED_CBIT_ch(ch) Cx(0x4020, ch) /* Chicken bits in scheduler */
+#define SC_ROUNDT_LAT_ch(ch) Cx(0x4024, ch) /* Round-trip latency per rank */
+#define SC_IO_LATENCY_ch(ch) Cx(0x4028, ch) /* IO Latency Configuration */
+#define SCRAMBLING_SEED_1_ch(ch) Cx(0x4034, ch) /* Scrambling seed 1 */
+#define SCRAMBLING_SEED_2_LO_ch(ch) Cx(0x4038, ch) /* Scrambling seed 2 low */
+#define SCRAMBLING_SEED_2_HI_ch(ch) Cx(0x403c, ch) /* Scrambling seed 2 high */
+
+/* IOSAV Bytelane Bit-wise error */
+#define IOSAV_By_BW_SERROR_ch(ch, y) CxLy(0x4040, ch, y)
+
+/* IOSAV Bytelane Bit-wise compare mask */
+#define IOSAV_By_BW_MASK_ch(ch, y) CxLy(0x4080, ch, y)
+
+/*
+ * Defines the number of transactions (non-VC1 RD CAS commands) between two priority ticks.
+ * Different counters for transactions that are issued on the ring agents (core or GT) and
+ * transactions issued in the SA.
+ */
+#define SC_PR_CNT_CONFIG_ch(ch) Cx(0x40a8, ch)
+#define SC_PCIT_ch(ch) Cx(0x40ac, ch) /* Page-close idle timer setup - 8 bits */
+#define PM_PDWN_CONFIG_ch(ch) Cx(0x40b0, ch) /* Power-down (CKE-off) operation config */
+#define ECC_INJECT_COUNT_ch(ch) Cx(0x40b4, ch) /* ECC error injection count */
+#define ECC_DFT_ch(ch) Cx(0x40b8, ch) /* ECC DFT features (ECC4ANA, error inject) */
+#define SC_WR_ADD_DELAY_ch(ch) Cx(0x40d0, ch) /* Extra WR delay to overcome WR-flyby issue */
+
+#define IOSAV_By_BW_SERROR_C_ch(ch, y) CxLy(0x4140, ch, y) /* IOSAV Bytelane Bit-wise error */
+
+/* IOSAV sub-sequence control registers */
+#define IOSAV_n_SP_CMD_ADDR_ch(ch, y) CxLy(0x4200, ch, y) /* Special command address. */
+#define IOSAV_n_ADDR_UPDATE_ch(ch, y) CxLy(0x4210, ch, y) /* Address update control */
+#define IOSAV_n_SP_CMD_CTRL_ch(ch, y) CxLy(0x4220, ch, y) /* Control of command signals */
+#define IOSAV_n_SUBSEQ_CTRL_ch(ch, y) CxLy(0x4230, ch, y) /* Sub-sequence controls */
+#define IOSAV_n_ADDRESS_LFSR_ch(ch, y) CxLy(0x4240, ch, y) /* 23-bit LFSR state value */
+
+#define PM_THML_STAT_ch(ch) Cx(0x4280, ch) /* Thermal status of each rank */
+#define IOSAV_SEQ_CTL_ch(ch) Cx(0x4284, ch) /* IOSAV sequence level control */
+#define IOSAV_DATA_CTL_ch(ch) Cx(0x4288, ch) /* Data control in IOSAV mode */
+#define IOSAV_STATUS_ch(ch) Cx(0x428c, ch) /* State of the IOSAV sequence machine */
+#define TC_ZQCAL_ch(ch) Cx(0x4290, ch) /* ZQCAL control register */
+#define TC_RFP_ch(ch) Cx(0x4294, ch) /* Refresh Parameters */
+#define TC_RFTP_ch(ch) Cx(0x4298, ch) /* Refresh Timing Parameters */
+#define TC_MR2_SHADOW_ch(ch) Cx(0x429c, ch) /* MR2 shadow - copy of DDR configuration */
+#define MC_INIT_STATE_ch(ch) Cx(0x42a0, ch) /* IOSAV mode control */
+#define TC_SRFTP_ch(ch) Cx(0x42a4, ch) /* Self-refresh timing parameters */
+#define IOSAV_ERROR_ch(ch) Cx(0x42ac, ch) /* Data vector count of the first error */
+#define IOSAV_DC_MASK_ch(ch) Cx(0x42b0, ch) /* IOSAV data check masking */
+
+#define IOSAV_By_ERROR_COUNT_ch(ch, y) CxLy(0x4340, ch, y) /* Per-byte 16-bit error count */
+#define IOSAV_G_ERROR_COUNT_ch(ch) Cx(0x4364, ch) /* Global 16-bit error count */
+
+/** WARNING: Only applies to Ivy Bridge! */
+#define IOSAV_BYTE_SERROR_ch(ch) Cx(0x4368, ch) /** Byte-Wise Sticky Error */
+#define IOSAV_BYTE_SERROR_C_ch(ch) Cx(0x436c, ch) /** Byte-Wise Sticky Error Clear */
+
+#define PM_TRML_M_CONFIG_ch(ch) Cx(0x4380, ch) /* Thermal mode configuration */
+#define PM_CMD_PWR_ch(ch) Cx(0x4384, ch) /* Power contribution of commands */
+#define PM_BW_LIMIT_CONFIG_ch(ch) Cx(0x4388, ch) /* Bandwidth throttling on overtemp */
+#define SC_WDBWM_ch(ch) Cx(0x438c, ch) /* Watermarks and starvation counter */
+
+/* MC Channel Broadcast registers */
+#define TC_DBP 0x4c00 /* Timings: BIN */
+#define TC_RAP 0x4c04 /* Timings: Regular access */
+#define TC_RWP 0x4c08 /* Timings: Read / Write */
+#define TC_OTHP 0x4c0c /* Timings: Other parameters */
+#define SCHED_SECOND_CBIT 0x4c1c /* More chicken bits */
+#define SCHED_CBIT 0x4c20 /* Chicken bits in scheduler */
+#define SC_ROUNDT_LAT 0x4c24 /* Round-trip latency per rank */
+#define SC_IO_LATENCY 0x4c28 /* IO Latency Configuration */
+#define SCRAMBLING_SEED_1 0x4c34 /* Scrambling seed 1 */
+#define SCRAMBLING_SEED_2_LO 0x4c38 /* Scrambling seed 2 low */
+#define SCRAMBLING_SEED_2_HI 0x4c3c /* Scrambling seed 2 high */
+
+#define IOSAV_By_BW_SERROR(y) Ly(0x4c40, y) /* IOSAV Bytelane Bit-wise error */
+#define IOSAV_By_BW_MASK(y) Ly(0x4c80, y) /* IOSAV Bytelane Bit-wise compare mask */
+
+/*
+ * Defines the number of transactions (non-VC1 RD CAS commands) between two priority ticks.
+ * Different counters for transactions that are issued on the ring agents (core or GT) and
+ * transactions issued in the SA.
+ */
+#define SC_PR_CNT_CONFIG 0x4ca8
+#define SC_PCIT 0x4cac /* Page-close idle timer setup - 8 bits */
+#define PM_PDWN_CONFIG 0x4cb0 /* Power-down (CKE-off) operation config */
+#define ECC_INJECT_COUNT 0x4cb4 /* ECC error injection count */
+#define ECC_DFT 0x4cb8 /* ECC DFT features (ECC4ANA, error inject) */
+#define SC_WR_ADD_DELAY 0x4cd0 /* Extra WR delay to overcome WR-flyby issue */
+
+/** Opportunistic reads configuration during write-major-mode (WMM) */
+#define WMM_READ_CONFIG 0x4cd4 /** WARNING: Only exists on IVB! */
+
+#define IOSAV_By_BW_SERROR_C(y) Ly(0x4d40, y) /* IOSAV Bytelane Bit-wise error */
+
+#define IOSAV_n_SP_CMD_ADDR(n) Ly(0x4e00, n) /* Sub-sequence special command address */
+#define IOSAV_n_ADDR_UPDATE(n) Ly(0x4e10, n) /* Address update after command execution */
+#define IOSAV_n_SP_CMD_CTRL(n) Ly(0x4e20, n) /* Command signals in sub-sequence command */
+#define IOSAV_n_SUBSEQ_CTRL(n) Ly(0x4e30, n) /* Sub-sequence command parameter control */
+#define IOSAV_n_ADDRESS_LFSR(n) Ly(0x4e40, n) /* 23-bit LFSR value of the sequence */
+
+#define PM_THML_STAT 0x4e80 /* Thermal status of each rank */
+#define IOSAV_SEQ_CTL 0x4e84 /* IOSAV sequence level control */
+#define IOSAV_DATA_CTL 0x4e88 /* Data control in IOSAV mode */
+#define IOSAV_STATUS 0x4e8c /* State of the IOSAV sequence machine */
+#define TC_ZQCAL 0x4e90 /* ZQCAL control register */
+#define TC_RFP 0x4e94 /* Refresh Parameters */
+#define TC_RFTP 0x4e98 /* Refresh Timing Parameters */
+#define TC_MR2_SHADOW 0x4e9c /* MR2 shadow - copy of DDR configuration */
+#define MC_INIT_STATE 0x4ea0 /* IOSAV mode control */
+#define TC_SRFTP 0x4ea4 /* Self-refresh timing parameters */
+
+/**
+ * Auxiliary register in mcmnts synthesis FUB (Functional Unit Block). Additionally, this
+ * register is also used to enable IOSAV_n_SP_CMD_ADDR optimization on Ivy Bridge.
+ */
+#define MCMNTS_SPARE 0x4ea8 /** WARNING: Reserved, use only on IVB! */
+
+#define IOSAV_ERROR 0x4eac /* Data vector count of the first error */
+#define IOSAV_DC_MASK 0x4eb0 /* IOSAV data check masking */
+
+#define IOSAV_By_ERROR_COUNT(y) Ly(0x4f40, y) /* Per-byte 16-bit error counter */
+#define IOSAV_G_ERROR_COUNT 0x4f64 /* Global 16-bit error counter */
+
+/** WARNING: Only applies to Ivy Bridge! */
+#define IOSAV_BYTE_SERROR 0x4f68 /** Byte-Wise Sticky Error */
+#define IOSAV_BYTE_SERROR_C 0x4f6c /** Byte-Wise Sticky Error Clear */
+
+#define PM_TRML_M_CONFIG 0x4f80 /* Thermal mode configuration */
+#define PM_CMD_PWR 0x4f84 /* Power contribution of commands */
+#define PM_BW_LIMIT_CONFIG 0x4f88 /* Bandwidth throttling on overtemperature */
+#define SC_WDBWM 0x4f8c /* Watermarks and starvation counter config */
+
+/* No, there's no need to get mad about the Memory Address Decoder */
+#define MAD_CHNL 0x5000 /* Address Decoder Channel Configuration */
+#define MAD_DIMM(ch) Ly(0x5004, ch) /* Channel characteristics */
+#define MAD_DIMM_CH0 MAD_DIMM(0) /* Channel 0 is at 0x5004 */
+#define MAD_DIMM_CH1 MAD_DIMM(1) /* Channel 1 is at 0x5008 */
+#define MAD_DIMM_CH2 MAD_DIMM(2) /* Channel 2 is at 0x500c (unused on SNB) */
+
+#define MAD_ZR 0x5014 /* Address Decode Zones */
+#define MCDECS_SPARE 0x5018 /* Spare register in mcdecs synthesis FUB */
+#define MCDECS_CBIT 0x501c /* Chicken bits in mcdecs synthesis FUB */
+
+#define CHANNEL_HASH 0x5024 /** WARNING: Only exists on IVB! */
+
+#define MC_INIT_STATE_G 0x5030 /* High-level behavior in IOSAV mode */
+#define MRC_REVISION 0x5034 /* MRC Revision */
+#define PM_DLL_CONFIG 0x5064 /* Memory Controller I/O DLL config */
+#define RCOMP_TIMER 0x5084 /* RCOMP evaluation timer register */
+
+#define MC_LOCK 0x50fc /* Memory Controlller Lock register */
+
+#define GFXVTBAR 0x5400 /* Base address for IGD */
+#define VTVC0BAR 0x5410 /* Base address for PEG, USB, SATA, etc. */
+
+/* On Ivy Bridge, this is used to enable Power Aware Interrupt Routing */
+#define INTRDIRCTL 0x5418 /* Interrupt Redirection Control */
+
+/* PAVP message register. Bit 0 locks PAVP settings, and bits [31..20] are an offset. */
+#define PAVP_MSG 0x5500
+
+#define MEM_TRML_ESTIMATION_CONFIG 0x5880
+#define MEM_TRML_THRESHOLDS_CONFIG 0x5888
+#define MEM_TRML_INTERRUPT 0x58a8
+
+/* Some power MSRs are also represented in MCHBAR */
+#define MCH_PKG_POWER_LIMIT_LO 0x59a0 /* Turbo Power Limit 1 parameters */
+#define MCH_PKG_POWER_LIMIT_HI 0x59a4 /* Turbo Power Limit 2 parameters */
+
+#define SSKPD 0x5d10 /* 64-bit scratchpad register */
+#define SSKPD_HI 0x5d14
+#define BIOS_RESET_CPL 0x5da8 /* 8-bit */
+
+/* PCODE will sample SAPM-related registers at the end of Phase 4. */
+#define MC_BIOS_REQ 0x5e00 /* Memory frequency request register */
+#define MC_BIOS_DATA 0x5e04 /* Miscellaneous information for BIOS */
+#define SAPMCTL 0x5f00 /* Bit 3 enables DDR EPG (C7i) on IVB */
+#define M_COMP 0x5f08 /* Memory COMP control */
+#define SAPMTIMERS 0x5f10 /* SAPM timers in 10ns (100 MHz) units */
+
+/* WARNING: Only applies to Sandy Bridge! */
+#define BANDTIMERS_SNB 0x5f18 /* MPLL and PPLL time to do self-banding */
+
+/** WARNING: Only applies to Ivy Bridge! */
+#define SAPMTIMERS2_IVB 0x5f18 /** Extra latency for DDRIO EPG exit (C7i) */
+#define BANDTIMERS_IVB 0x5f20 /** MPLL and PPLL time to do self-banding */
+
+/* Finalize registers. The names come from Haswell, as the finalize sequence is the same. */
+#define HDAUDRID 0x6008
+#define UMAGFXCTL 0x6020
+#define VDMBDFBARKVM 0x6030
+#define VDMBDFBARPAVP 0x6034
+#define VTDTRKLCK 0x63fc
+#define REQLIM 0x6800
+#define DMIVCLIM 0x7000
+#define PEGCTL 0x7010 /* Bit 0 is PCIPWRGAT (clock gate all PEG controllers) */
+#define CRDTCTL3 0x740c /* Minimum completion credits for PCIe/DMI */
+#define CRDTCTL4 0x7410 /* Read Return Tracker credits */
+#define CRDTLCK 0x77fc
+
+#endif /* __SANDYBRIDGE_MCHBAR_REGS_H__ */
diff --git a/src/northbridge/intel/sandybridge/memmap.c b/src/northbridge/intel/sandybridge/memmap.c
index 03e8db6cd7..60b6dcdf31 100644
--- a/src/northbridge/intel/sandybridge/memmap.c
+++ b/src/northbridge/intel/sandybridge/memmap.c
@@ -26,18 +26,17 @@
static uintptr_t smm_region_start(void)
{
/* Base of TSEG is top of usable DRAM */
- uintptr_t tom = pci_read_config32(PCI_DEV(0, 0, 0), TSEGMB);
- return tom;
+ return pci_read_config32(HOST_BRIDGE, TSEGMB);
}
void *cbmem_top_chipset(void)
{
- return (void *) smm_region_start();
+ return (void *)smm_region_start();
}
static uintptr_t northbridge_get_tseg_base(void)
{
- return ALIGN_DOWN(smm_region_start(), 1*MiB);
+ return ALIGN_DOWN(smm_region_start(), 1 * MiB);
}
static size_t northbridge_get_tseg_size(void)
@@ -48,24 +47,27 @@ static size_t northbridge_get_tseg_size(void)
void smm_region(uintptr_t *start, size_t *size)
{
*start = northbridge_get_tseg_base();
- *size = northbridge_get_tseg_size();
+ *size = northbridge_get_tseg_size();
}
void fill_postcar_frame(struct postcar_frame *pcf)
{
- uintptr_t top_of_ram;
+ uintptr_t top_of_ram = (uintptr_t)cbmem_top();
- top_of_ram = (uintptr_t)cbmem_top();
- /* Cache 8MiB below the top of ram. On sandybridge systems the top of
+ /*
+ * Cache 8MiB below the top of ram. On sandybridge systems the top of
* RAM under 4GiB is the start of the TSEG region. It is required to
* be 8MiB aligned. Set this area as cacheable so it can be used later
- * for ramstage before setting up the entire RAM as cacheable. */
- postcar_frame_add_mtrr(pcf, top_of_ram - 8*MiB, 8*MiB, MTRR_TYPE_WRBACK);
+ * for ramstage before setting up the entire RAM as cacheable.
+ */
+ postcar_frame_add_mtrr(pcf, top_of_ram - 8 * MiB, 8 * MiB, MTRR_TYPE_WRBACK);
- /* Cache 8MiB at the top of ram. Top of RAM on sandybridge systems
+ /*
+ * Cache 8MiB at the top of ram. Top of RAM on sandybridge systems
* is where the TSEG region resides. However, it is not restricted
* to SMM mode until SMM has been relocated. By setting the region
* to cacheable it provides faster access when relocating the SMM
- * handler as well as using the TSEG region for other purposes. */
- postcar_frame_add_mtrr(pcf, top_of_ram, 8*MiB, MTRR_TYPE_WRBACK);
+ * handler as well as using the TSEG region for other purposes.
+ */
+ postcar_frame_add_mtrr(pcf, top_of_ram, 8 * MiB, MTRR_TYPE_WRBACK);
}
diff --git a/src/northbridge/intel/sandybridge/northbridge.c b/src/northbridge/intel/sandybridge/northbridge.c
index eb102db933..23c1489acb 100644
--- a/src/northbridge/intel/sandybridge/northbridge.c
+++ b/src/northbridge/intel/sandybridge/northbridge.c
@@ -35,11 +35,9 @@ static uint64_t uma_memory_size = 0;
int bridge_silicon_revision(void)
{
if (bridge_revision_id < 0) {
- uint8_t stepping = cpuid_eax(1) & 0xf;
- uint8_t bridge_id = pci_read_config16(
- pcidev_on_root(0, 0),
- PCI_DEVICE_ID) & 0xf0;
- bridge_revision_id = bridge_id | stepping;
+ uint8_t stepping = cpuid_eax(1) & 0x0f;
+ uint8_t bridge_id = pci_read_config16(pcidev_on_root(0, 0), PCI_DEVICE_ID);
+ bridge_revision_id = (bridge_id & 0xf0) | stepping;
}
return bridge_revision_id;
}
@@ -66,18 +64,19 @@ static int get_pcie_bar(u32 *base)
pciexbar_reg = pci_read_config32(dev, PCIEXBAR);
+ /* MMCFG not supported or not enabled */
if (!(pciexbar_reg & (1 << 0)))
return 0;
switch ((pciexbar_reg >> 1) & 3) {
- case 0: // 256MB
- *base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28));
+ case 0: /* 256MB */
+ *base = pciexbar_reg & (0xffffffffULL << 28);
return 256;
- case 1: // 128M
- *base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27));
+ case 1: /* 128M */
+ *base = pciexbar_reg & (0xffffffffULL << 27);
return 128;
- case 2: // 64M
- *base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)|(1 << 26));
+ case 2: /* 64M */
+ *base = pciexbar_reg & (0xffffffffULL << 26);
return 64;
}
@@ -88,15 +87,14 @@ static void add_fixed_resources(struct device *dev, int index)
{
mmio_resource(dev, index++, uma_memory_base >> 10, uma_memory_size >> 10);
- mmio_resource(dev, index++, legacy_hole_base_k,
- (0xc0000 >> 10) - legacy_hole_base_k);
- reserved_ram_resource(dev, index++, 0xc0000 >> 10,
- (0x100000 - 0xc0000) >> 10);
+ mmio_resource(dev, index++, legacy_hole_base_k, (0xc0000 >> 10) - legacy_hole_base_k);
+
+ reserved_ram_resource(dev, index++, 0xc0000 >> 10, (0x100000 - 0xc0000) >> 10);
#if CONFIG(CHROMEOS_RAMOOPS)
reserved_ram_resource(dev, index++,
CONFIG_CHROMEOS_RAMOOPS_RAM_START >> 10,
- CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE >> 10);
+ CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE >> 10);
#endif
if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_SNB) {
@@ -106,10 +104,10 @@ static void add_fixed_resources(struct device *dev, int index)
}
/* Reserve IOMMU BARs */
- const u32 capid0_a = pci_read_config32(dev, 0xe4);
+ const u32 capid0_a = pci_read_config32(dev, CAPID0_A);
if (!(capid0_a & (1 << 23))) {
- mmio_resource(dev, index++, IOMMU_BASE1 >> 10, 4);
- mmio_resource(dev, index++, IOMMU_BASE2 >> 10, 4);
+ mmio_resource(dev, index++, GFXVT_BASE >> 10, 4);
+ mmio_resource(dev, index++, VTVC0_BASE >> 10, 4);
}
}
@@ -149,7 +147,7 @@ static void pci_domain_set_resources(struct device *dev)
struct device *mch = pcidev_on_root(0, 0);
/* Top of Upper Usable DRAM, including remap */
- touud = pci_read_config32(mch, TOUUD+4);
+ touud = pci_read_config32(mch, TOUUD + 4);
touud <<= 32;
touud |= pci_read_config32(mch, TOUUD);
@@ -157,17 +155,17 @@ static void pci_domain_set_resources(struct device *dev)
tolud = pci_read_config32(mch, TOLUD);
/* Top of Memory - does not account for any UMA */
- tom = pci_read_config32(mch, 0xa4);
+ tom = pci_read_config32(mch, TOM + 4);
tom <<= 32;
- tom |= pci_read_config32(mch, 0xa0);
+ tom |= pci_read_config32(mch, TOM);
printk(BIOS_DEBUG, "TOUUD 0x%llx TOLUD 0x%08x TOM 0x%llx\n",
touud, tolud, tom);
- /* ME UMA needs excluding if total memory <4GB */
- me_base = pci_read_config32(mch, 0x74);
+ /* ME UMA needs excluding if total memory < 4GB */
+ me_base = pci_read_config32(mch, MESEG_BASE + 4);
me_base <<= 32;
- me_base |= pci_read_config32(mch, 0x70);
+ me_base |= pci_read_config32(mch, MESEG_BASE);
printk(BIOS_DEBUG, "MEBASE 0x%llx\n", me_base);
@@ -206,30 +204,28 @@ static void pci_domain_set_resources(struct device *dev)
}
/* Calculate TSEG size from its base which must be below GTT */
- tseg_base = pci_read_config32(mch, 0xb8);
+ tseg_base = pci_read_config32(mch, TSEGMB);
uma_size = (uma_memory_base - tseg_base) >> 10;
tomk -= uma_size;
uma_memory_base = tomk * 1024ULL;
uma_memory_size += uma_size * 1024ULL;
- printk(BIOS_DEBUG, "TSEG base 0x%08x size %uM\n",
- tseg_base, uma_size >> 10);
+ printk(BIOS_DEBUG, "TSEG base 0x%08x size %uM\n", tseg_base, uma_size >> 10);
printk(BIOS_INFO, "Available memory below 4GB: %lluM\n", tomk >> 10);
/* Report the memory regions */
ram_resource(dev, 3, 0, legacy_hole_base_k);
ram_resource(dev, 4, legacy_hole_base_k + legacy_hole_size_k,
- (tomk - (legacy_hole_base_k + legacy_hole_size_k)));
+ (tomk - (legacy_hole_base_k + legacy_hole_size_k)));
/*
- * If >= 4GB installed then memory from TOLUD to 4GB
- * is remapped above TOM, TOUUD will account for both
+ * If >= 4GB installed, then memory from TOLUD to 4GB is remapped above TOM.
+ * TOUUD will account for both memory chunks.
*/
touud >>= 10; /* Convert to KB */
if (touud > 4096 * 1024) {
ram_resource(dev, 5, 4096 * 1024, touud - (4096 * 1024));
- printk(BIOS_INFO, "Available memory above 4GB: %lluM\n",
- (touud >> 10) - 4096);
+ printk(BIOS_INFO, "Available memory above 4GB: %lluM\n", (touud >> 10) - 4096);
}
add_fixed_resources(dev, 6);
@@ -253,17 +249,18 @@ static const char *northbridge_acpi_name(const struct device *dev)
return NULL;
}
- /* TODO We could determine how many PCIe busses we need in
- * the bar. For now that number is hardcoded to a max of 64.
- */
+/*
+ * TODO We could determine how many PCIe busses we need in the bar.
+ * For now, that number is hardcoded to a max of 64.
+ */
static struct device_operations pci_domain_ops = {
- .read_resources = pci_domain_read_resources,
- .set_resources = pci_domain_set_resources,
- .enable_resources = NULL,
- .init = NULL,
- .scan_bus = pci_domain_scan_bus,
+ .read_resources = pci_domain_read_resources,
+ .set_resources = pci_domain_set_resources,
+ .enable_resources = NULL,
+ .init = NULL,
+ .scan_bus = pci_domain_scan_bus,
.write_acpi_tables = northbridge_write_acpi_tables,
- .acpi_name = northbridge_acpi_name,
+ .acpi_name = northbridge_acpi_name,
};
static void mc_read_resources(struct device *dev)
@@ -291,7 +288,7 @@ static void northbridge_dmi_init(struct device *dev)
/* Steps prior to DMI ASPM */
if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_SNB) {
reg32 = DMIBAR32(0x250);
- reg32 &= ~((1 << 22)|(1 << 20));
+ reg32 &= ~((1 << 22) | (1 << 20));
reg32 |= (1 << 21);
DMIBAR32(0x250) = reg32;
}
@@ -304,6 +301,7 @@ static void northbridge_dmi_init(struct device *dev)
reg32 = DMIBAR32(0x1f8);
reg32 |= (1 << 16);
DMIBAR32(0x1f8) = reg32;
+
} else if (bridge_silicon_revision() >= SNB_STEP_D1) {
reg32 = DMIBAR32(0x1f8);
reg32 &= ~(1 << 26);
@@ -374,10 +372,15 @@ static void disable_peg(void)
dev = pcidev_on_root(0, 0);
pci_write_config32(dev, DEVEN, reg);
+
if (!(reg & (DEVEN_PEG60 | DEVEN_PEG10 | DEVEN_PEG11 | DEVEN_PEG12))) {
- /* Set the PEG clock gating bit.
- * Disables the IO clock on all PEG devices. */
- MCHBAR32(0x7010) = MCHBAR32(0x7010) | 0x01;
+ /*
+ * Set the PEG clock gating bit. Disables the IO clock on all PEG devices.
+ *
+ * FIXME: If not clock gating, this register still needs to be written to once,
+ * to lock it down. Also, never clock gate on Ivy Bridge stepping A0!
+ */
+ MCHBAR32_OR(PEGCTL, 1);
printk(BIOS_DEBUG, "Disabling PEG IO clock.\n");
}
}
@@ -394,10 +397,10 @@ static void northbridge_init(struct device *dev)
if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_IVB) {
/* Enable Power Aware Interrupt Routing */
- u8 pair = MCHBAR8(PAIR_CTL);
- pair &= ~0xf; /* Clear 3:0 */
- pair |= 0x4; /* Fixed Priority */
- MCHBAR8(PAIR_CTL) = pair;
+ u8 pair = MCHBAR8(INTRDIRCTL);
+ pair &= ~0x0f; /* Clear 3:0 */
+ pair |= 0x04; /* Fixed Priority */
+ MCHBAR8(INTRDIRCTL) = pair;
/* 30h for IvyBridge */
bridge_type |= 0x30;
@@ -407,9 +410,7 @@ static void northbridge_init(struct device *dev)
}
MCHBAR32(SAPMTIMERS) = bridge_type;
- /* Turn off unused devices. Has to be done before
- * setting BIOS_RESET_CPL.
- */
+ /* Turn off unused devices. Has to be done before setting BIOS_RESET_CPL. */
disable_peg();
/*
@@ -426,17 +427,17 @@ static void northbridge_init(struct device *dev)
set_power_limits(28);
/*
- * CPUs with configurable TDP also need power limits set
- * in MCHBAR. Use same values from MSR_PKG_POWER_LIMIT.
+ * CPUs with configurable TDP also need power limits set in MCHBAR.
+ * Use the same values from MSR_PKG_POWER_LIMIT.
*/
if (cpu_config_tdp_levels()) {
msr_t msr = rdmsr(MSR_PKG_POWER_LIMIT);
- MCHBAR32(MC_TURBO_PL1) = msr.lo;
- MCHBAR32(MC_TURBO_PL2) = msr.hi;
+ MCHBAR32(MCH_PKG_POWER_LIMIT_LO) = msr.lo;
+ MCHBAR32(MCH_PKG_POWER_LIMIT_HI) = msr.hi;
}
/* Set here before graphics PM init */
- MCHBAR32(MMIO_PAVP_CTL) = 0x00100001;
+ MCHBAR32(PAVP_MSG) = 0x00100001;
}
void northbridge_write_smram(u8 smram)
@@ -445,16 +446,16 @@ void northbridge_write_smram(u8 smram)
}
static struct pci_operations intel_pci_ops = {
- .set_subsystem = pci_dev_set_subsystem,
+ .set_subsystem = pci_dev_set_subsystem,
};
static struct device_operations mc_ops = {
- .read_resources = mc_read_resources,
- .set_resources = pci_dev_set_resources,
- .enable_resources = pci_dev_enable_resources,
- .init = northbridge_init,
- .scan_bus = 0,
- .ops_pci = &intel_pci_ops,
+ .read_resources = mc_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .init = northbridge_init,
+ .scan_bus = NULL,
+ .ops_pci = &intel_pci_ops,
.acpi_fill_ssdt_generator = generate_cpu_entries,
};
@@ -465,8 +466,8 @@ static const unsigned short pci_device_ids[] = {
};
static const struct pci_driver mc_driver __pci_driver = {
- .ops = &mc_ops,
- .vendor = PCI_VENDOR_ID_INTEL,
+ .ops = &mc_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
.devices = pci_device_ids,
};
diff --git a/src/northbridge/intel/sandybridge/pcie.c b/src/northbridge/intel/sandybridge/pcie.c
index 258ade2de8..05f05ecc1d 100644
--- a/src/northbridge/intel/sandybridge/pcie.c
+++ b/src/northbridge/intel/sandybridge/pcie.c
@@ -54,9 +54,9 @@ static const char *pcie_acpi_name(const struct device *dev)
if (dev->path.pci.devfn == PCI_DEVFN(0, 0) &&
port->bus->secondary == 0 &&
(port->path.pci.devfn == PCI_DEVFN(1, 0) ||
- port->path.pci.devfn == PCI_DEVFN(1, 1) ||
- port->path.pci.devfn == PCI_DEVFN(1, 2) ||
- port->path.pci.devfn == PCI_DEVFN(6, 0)))
+ port->path.pci.devfn == PCI_DEVFN(1, 1) ||
+ port->path.pci.devfn == PCI_DEVFN(1, 2) ||
+ port->path.pci.devfn == PCI_DEVFN(6, 0)))
return "DEV0";
return NULL;
@@ -81,9 +81,11 @@ static struct device_operations device_ops = {
#endif
};
-static const unsigned short pci_device_ids[] = { 0x0101, 0x0105, 0x0109, 0x010d,
- 0x0151, 0x0155, 0x0159, 0x015d,
- 0 };
+static const unsigned short pci_device_ids[] = {
+ 0x0101, 0x0105, 0x0109, 0x010d,
+ 0x0151, 0x0155, 0x0159, 0x015d,
+ 0,
+};
static const struct pci_driver pch_pcie __pci_driver = {
.ops = &device_ops,
diff --git a/src/northbridge/intel/sandybridge/pei_data.h b/src/northbridge/intel/sandybridge/pei_data.h
index 8e98becbe3..8114bcc153 100644
--- a/src/northbridge/intel/sandybridge/pei_data.h
+++ b/src/northbridge/intel/sandybridge/pei_data.h
@@ -33,10 +33,10 @@
#include <stdint.h>
typedef struct {
- uint16_t mode; // 0: Disable, 1: Enable, 2: Auto, 3: Smart Auto
- uint16_t hs_port_switch_mask; // 4 bit mask, 1: switchable, 0: not switchable
- uint16_t preboot_support; // 0: No xHCI preOS driver, 1: xHCI preOS driver
- uint16_t xhci_streams; // 0: Disable, 1: Enable
+ uint16_t mode; /* 0: Disable, 1: Enable, 2: Auto, 3: Smart Auto */
+ uint16_t hs_port_switch_mask; /* 4 bit mask, 1: switchable, 0: not switchable */
+ uint16_t preboot_support; /* 0: No xHCI preOS driver, 1: xHCI preOS driver */
+ uint16_t xhci_streams; /* 0: Disable, 1: Enable */
} pch_usb3_controller_settings;
typedef void (*tx_byte_func)(unsigned char byte);
@@ -57,17 +57,19 @@ struct pei_data
uint32_t pmbase;
uint32_t gpiobase;
uint32_t thermalbase;
- uint32_t system_type; // 0 Mobile, 1 Desktop/Server
+ uint32_t system_type; /* 0 Mobile, 1 Desktop/Server */
uint32_t tseg_size;
uint8_t spd_addresses[4];
uint8_t ts_addresses[4];
int boot_mode;
int ec_present;
int gbe_enable;
- // 0 = leave channel enabled
- // 1 = disable dimm 0 on channel
- // 2 = disable dimm 1 on channel
- // 3 = disable dimm 0+1 on channel
+ /*
+ * 0 = leave channel enabled
+ * 1 = disable dimm 0 on channel
+ * 2 = disable dimm 1 on channel
+ * 3 = disable dimm 0+1 on channel
+ */
int dimm_channel0_disabled;
int dimm_channel1_disabled;
/* Seed values saved in CMOS */
@@ -90,46 +92,50 @@ struct pei_data
* [1] = overcurrent pin
* [2] = length
*
- * Ports 0-7 can be mapped to OC0-OC3
+ * Ports 0-7 can be mapped to OC0-OC3
* Ports 8-13 can be mapped to OC4-OC7
*
* Port Length
* MOBILE:
- * < 0x050 = Setting 1 (back panel, 1-5in, lowest tx amplitude)
- * < 0x140 = Setting 2 (back panel, 5-14in, highest tx amplitude)
+ * < 0x050 = Setting 1 (back panel, 1 to 5 in, lowest tx amplitude)
+ * < 0x140 = Setting 2 (back panel, 5 to 14 in, highest tx amplitude)
* DESKTOP:
- * < 0x080 = Setting 1 (front/back panel, <8in, lowest tx amplitude)
- * < 0x130 = Setting 2 (back panel, 8-13in, higher tx amplitude)
- * < 0x150 = Setting 3 (back panel, 13-15in, highest tx amplitude)
+ * < 0x080 = Setting 1 (front/back panel, less than 8 in, lowest tx amplitude)
+ * < 0x130 = Setting 2 (back panel, 8 to 13 in, higher tx amplitude)
+ * < 0x150 = Setting 3 (back panel, 13 to 15 in, highest tx amplitude)
*/
uint16_t usb_port_config[16][3];
/* See the usb3 struct above for details */
pch_usb3_controller_settings usb3;
- /* SPD data array for onboard RAM.
- * spd_data [1..3] are ignored, instead the "dimm_channel{0,1}_disabled"
- * flag and the spd_addresses are used to determine which DIMMs should
- * use the SPD from spd_data[0].
+ /*
+ * SPD data array for onboard RAM. Note that spd_data [1..3] are ignored: instead,
+ * the "dimm_channel{0,1}_disabled" flag and the spd_addresses are used to determine
+ * which DIMMs should use the SPD from spd_data[0].
*/
uint8_t spd_data[4][256];
tx_byte_func tx_byte;
int ddr3lv_support;
- /* pcie_init needs to be set to 1 to have the system agent initialize
- * PCIe. Note: This should only be required if your system has Gen3 devices
- * and it will increase your boot time by at least 100ms.
+ /*
+ * pcie_init needs to be set to 1 to have the system agent initialize PCIe.
+ * Note: This should only be required if your system has Gen3 devices and
+ * it will increase your boot time by at least 100ms.
*/
int pcie_init;
- /* N mode functionality. Leave this setting at 0.
- * 0 Auto
- * 1 1N
- * 2 2N
+ /*
+ * N mode functionality. Leave this setting at 0.
+ *
+ * 0: Auto
+ * 1: 1N
+ * 2: 2N
*/
int nmode;
- /* DDR refresh rate config. JEDEC Standard No.21-C Annex K allows
- * for DIMM SPD data to specify whether double-rate is required for
- * extended operating temperature range.
- * 0 Enable double rate based upon temperature thresholds
- * 1 Normal rate
- * 2 Always enable double rate
+ /*
+ * DDR refresh rate config. JEDEC Standard No.21-C Annex K allows for DIMM SPD data to
+ * specify whether double-rate is required for extended operating temperature range.
+ *
+ * 0: Enable double rate based upon temperature thresholds
+ * 1: Normal rate
+ * 2: Always enable double rate
*/
int ddr_refresh_rate_config;
} __packed;
diff --git a/src/northbridge/intel/sandybridge/raminit.c b/src/northbridge/intel/sandybridge/raminit.c
index 60217b4070..ca78eb3a64 100644
--- a/src/northbridge/intel/sandybridge/raminit.c
+++ b/src/northbridge/intel/sandybridge/raminit.c
@@ -35,47 +35,48 @@
#define MRC_CACHE_VERSION 1
-/* FIXME: no ECC support. */
-/* FIXME: no support for 3-channel chipsets. */
+/* FIXME: no ECC support */
+/* FIXME: no support for 3-channel chipsets */
static const char *ecc_decoder[] = {
"inactive",
"active on IO",
"disabled on IO",
- "active"
+ "active",
};
static void wait_txt_clear(void)
{
- struct cpuid_result cp;
+ struct cpuid_result cp = cpuid_ext(1, 0);
- cp = cpuid_ext(0x1, 0x0);
- /* Check if TXT is supported? */
- if (!(cp.ecx & 0x40))
+ /* Check if TXT is supported */
+ if (!(cp.ecx & (1 << 6)))
return;
- /* Some TXT public bit. */
+
+ /* Some TXT public bit */
if (!(read32((void *)0xfed30010) & 1))
return;
- /* Wait for TXT clear. */
- while (!(read8((void *)0xfed40000) & (1 << 7)));
+
+ /* Wait for TXT clear */
+ while (!(read8((void *)0xfed40000) & (1 << 7)))
+ ;
}
-/*
- * Disable a channel in ramctr_timing.
- */
-static void disable_channel(ramctr_timing *ctrl, int channel) {
+/* Disable a channel in ramctr_timing */
+static void disable_channel(ramctr_timing *ctrl, int channel)
+{
ctrl->rankmap[channel] = 0;
+
memset(&ctrl->rank_mirror[channel][0], 0, sizeof(ctrl->rank_mirror[0]));
+
ctrl->channel_size_mb[channel] = 0;
- ctrl->cmd_stretch[channel] = 0;
- ctrl->mad_dimm[channel] = 0;
- memset(&ctrl->timings[channel][0], 0, sizeof(ctrl->timings[0]));
+ ctrl->cmd_stretch[channel] = 0;
+ ctrl->mad_dimm[channel] = 0;
+ memset(&ctrl->timings[channel][0], 0, sizeof(ctrl->timings[0]));
memset(&ctrl->info.dimm[channel][0], 0, sizeof(ctrl->info.dimm[0]));
}
-/*
- * Fill cbmem with information for SMBIOS type 17.
- */
+/* Fill cbmem with information for SMBIOS type 17 */
static void fill_smbios17(ramctr_timing *ctrl)
{
int channel, slot;
@@ -89,54 +90,50 @@ static void fill_smbios17(ramctr_timing *ctrl)
}
}
-/*
- * Dump in the log memory controller configuration as read from the memory
- * controller registers.
- */
+#define ON_OFF(val) (((val) & 1) ? "on" : "off")
+
+/* Print the memory controller configuration as read from the memory controller registers. */
static void report_memory_config(void)
{
u32 addr_decoder_common, addr_decode_ch[NUM_CHANNELS];
- int i, refclk;
+ int i;
addr_decoder_common = MCHBAR32(MAD_CHNL);
- addr_decode_ch[0] = MCHBAR32(MAD_DIMM_CH0);
- addr_decode_ch[1] = MCHBAR32(MAD_DIMM_CH1);
+ addr_decode_ch[0] = MCHBAR32(MAD_DIMM_CH0);
+ addr_decode_ch[1] = MCHBAR32(MAD_DIMM_CH1);
- refclk = MCHBAR32(MC_BIOS_REQ) & 0x100 ? 100 : 133;
+ const int refclk = MCHBAR32(MC_BIOS_REQ) & 0x100 ? 100 : 133;
printk(BIOS_DEBUG, "memcfg DDR3 ref clock %d MHz\n", refclk);
printk(BIOS_DEBUG, "memcfg DDR3 clock %d MHz\n",
(MCHBAR32(MC_BIOS_DATA) * refclk * 100 * 2 + 50) / 100);
+
printk(BIOS_DEBUG, "memcfg channel assignment: A: %d, B % d, C % d\n",
- addr_decoder_common & 3, (addr_decoder_common >> 2) & 3,
+ (addr_decoder_common >> 0) & 3,
+ (addr_decoder_common >> 2) & 3,
(addr_decoder_common >> 4) & 3);
for (i = 0; i < ARRAY_SIZE(addr_decode_ch); i++) {
u32 ch_conf = addr_decode_ch[i];
- printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n", i,
- ch_conf);
- printk(BIOS_DEBUG, " ECC %s\n",
- ecc_decoder[(ch_conf >> 24) & 3]);
- printk(BIOS_DEBUG, " enhanced interleave mode %s\n",
- ((ch_conf >> 22) & 1) ? "on" : "off");
- printk(BIOS_DEBUG, " rank interleave %s\n",
- ((ch_conf >> 21) & 1) ? "on" : "off");
+ printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n", i, ch_conf);
+ printk(BIOS_DEBUG, " ECC %s\n", ecc_decoder[(ch_conf >> 24) & 3]);
+ printk(BIOS_DEBUG, " enhanced interleave mode %s\n", ON_OFF(ch_conf >> 22));
+ printk(BIOS_DEBUG, " rank interleave %s\n", ON_OFF(ch_conf >> 21));
printk(BIOS_DEBUG, " DIMMA %d MB width x%d %s rank%s\n",
- ((ch_conf >> 0) & 0xff) * 256,
+ ((ch_conf >> 0) & 0xff) * 256,
((ch_conf >> 19) & 1) ? 16 : 8,
((ch_conf >> 17) & 1) ? "dual" : "single",
((ch_conf >> 16) & 1) ? "" : ", selected");
printk(BIOS_DEBUG, " DIMMB %d MB width x%d %s rank%s\n",
- ((ch_conf >> 8) & 0xff) * 256,
+ ((ch_conf >> 8) & 0xff) * 256,
((ch_conf >> 20) & 1) ? 16 : 8,
((ch_conf >> 18) & 1) ? "dual" : "single",
((ch_conf >> 16) & 1) ? ", selected" : "");
}
}
+#undef ON_OFF
-/*
- * Return CRC16 match for all SPDs.
- */
+/* Return CRC16 match for all SPDs */
static int verify_crc16_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl)
{
int channel, slot, spd_slot;
@@ -146,7 +143,7 @@ static int verify_crc16_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl)
for (slot = 0; slot < NUM_SLOTS; slot++) {
spd_slot = 2 * channel + slot;
match &= ctrl->spd_crc[channel][slot] ==
- spd_ddr3_calc_unique_crc(spd[spd_slot], sizeof(spd_raw_data));
+ spd_ddr3_calc_unique_crc(spd[spd_slot], sizeof(spd_raw_data));
}
}
return match;
@@ -166,7 +163,7 @@ void read_spd(spd_raw_data * spd, u8 addr, bool id_only)
static void dram_find_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl)
{
- int dimms = 0, dimms_on_channel;
+ int dimms = 0, ch_dimms;
int channel, slot, spd_slot;
dimm_info *dimm = &ctrl->info;
@@ -178,53 +175,55 @@ static void dram_find_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl)
FOR_ALL_CHANNELS {
ctrl->channel_size_mb[channel] = 0;
- dimms_on_channel = 0;
- /* count dimms on channel */
+ ch_dimms = 0;
+ /* Count dimms on channel */
for (slot = 0; slot < NUM_SLOTS; slot++) {
spd_slot = 2 * channel + slot;
- printk(BIOS_DEBUG,
- "SPD probe channel%d, slot%d\n", channel, slot);
+ printk(BIOS_DEBUG, "SPD probe channel%d, slot%d\n", channel, slot);
spd_decode_ddr3(&dimm->dimm[channel][slot], spd[spd_slot]);
if (dimm->dimm[channel][slot].dram_type == SPD_MEMORY_TYPE_SDRAM_DDR3)
- dimms_on_channel++;
+ ch_dimms++;
}
for (slot = 0; slot < NUM_SLOTS; slot++) {
spd_slot = 2 * channel + slot;
- printk(BIOS_DEBUG,
- "SPD probe channel%d, slot%d\n", channel, slot);
+ printk(BIOS_DEBUG, "SPD probe channel%d, slot%d\n", channel, slot);
- /* search for XMP profile */
- spd_xmp_decode_ddr3(&dimm->dimm[channel][slot],
- spd[spd_slot],
+ /* Search for XMP profile */
+ spd_xmp_decode_ddr3(&dimm->dimm[channel][slot], spd[spd_slot],
DDR3_XMP_PROFILE_1);
if (dimm->dimm[channel][slot].dram_type != SPD_MEMORY_TYPE_SDRAM_DDR3) {
printram("No valid XMP profile found.\n");
spd_decode_ddr3(&dimm->dimm[channel][slot], spd[spd_slot]);
- } else if (dimms_on_channel > dimm->dimm[channel][slot].dimms_per_channel) {
- printram("XMP profile supports %u DIMMs, but %u DIMMs are installed.\n",
- dimm->dimm[channel][slot].dimms_per_channel,
- dimms_on_channel);
+
+ } else if (ch_dimms > dimm->dimm[channel][slot].dimms_per_channel) {
+ printram(
+ "XMP profile supports %u DIMMs, but %u DIMMs are installed.\n",
+ dimm->dimm[channel][slot].dimms_per_channel, ch_dimms);
+
if (CONFIG(NATIVE_RAMINIT_IGNORE_XMP_MAX_DIMMS))
- printk(BIOS_WARNING, "XMP maximum DIMMs will be ignored.\n");
+ printk(BIOS_WARNING,
+ "XMP maximum DIMMs will be ignored.\n");
else
- spd_decode_ddr3(&dimm->dimm[channel][slot], spd[spd_slot]);
+ spd_decode_ddr3(&dimm->dimm[channel][slot],
+ spd[spd_slot]);
+
} else if (dimm->dimm[channel][slot].voltage != 1500) {
- /* TODO: support other DDR3 voltage than 1500mV */
+ /* TODO: Support DDR3 voltages other than 1500mV */
printram("XMP profile's requested %u mV is unsupported.\n",
dimm->dimm[channel][slot].voltage);
spd_decode_ddr3(&dimm->dimm[channel][slot], spd[spd_slot]);
}
- /* fill in CRC16 for MRC cache */
+ /* Fill in CRC16 for MRC cache */
ctrl->spd_crc[channel][slot] =
- spd_ddr3_calc_unique_crc(spd[spd_slot], sizeof(spd_raw_data));
+ spd_ddr3_calc_unique_crc(spd[spd_slot], sizeof(spd_raw_data));
if (dimm->dimm[channel][slot].dram_type != SPD_MEMORY_TYPE_SDRAM_DDR3) {
- // set dimm invalid
- dimm->dimm[channel][slot].ranks = 0;
+ /* Mark DIMM as invalid */
+ dimm->dimm[channel][slot].ranks = 0;
dimm->dimm[channel][slot].size_mb = 0;
continue;
}
@@ -232,30 +231,40 @@ static void dram_find_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl)
dram_print_spd_ddr3(&dimm->dimm[channel][slot]);
dimms++;
ctrl->rank_mirror[channel][slot * 2] = 0;
- ctrl->rank_mirror[channel][slot * 2 + 1] = dimm->dimm[channel][slot].flags.pins_mirrored;
+ ctrl->rank_mirror[channel][slot * 2 + 1] =
+ dimm->dimm[channel][slot].flags.pins_mirrored;
+
ctrl->channel_size_mb[channel] += dimm->dimm[channel][slot].size_mb;
ctrl->auto_self_refresh &= dimm->dimm[channel][slot].flags.asr;
- ctrl->extended_temperature_range &= dimm->dimm[channel][slot].flags.ext_temp_refresh;
- ctrl->rankmap[channel] |= ((1 << dimm->dimm[channel][slot].ranks) - 1) << (2 * slot);
- printk(BIOS_DEBUG, "channel[%d] rankmap = 0x%x\n",
- channel, ctrl->rankmap[channel]);
+ ctrl->extended_temperature_range &=
+ dimm->dimm[channel][slot].flags.ext_temp_refresh;
+
+ ctrl->rankmap[channel] |=
+ ((1 << dimm->dimm[channel][slot].ranks) - 1) << (2 * slot);
+
+ printk(BIOS_DEBUG, "channel[%d] rankmap = 0x%x\n", channel,
+ ctrl->rankmap[channel]);
}
- if ((ctrl->rankmap[channel] & 3) && (ctrl->rankmap[channel] & 0xc)
- && dimm->dimm[channel][0].reference_card <= 5 && dimm->dimm[channel][1].reference_card <= 5) {
+ if ((ctrl->rankmap[channel] & 0x03) && (ctrl->rankmap[channel] & 0x0c)
+ && dimm->dimm[channel][0].reference_card <= 5
+ && dimm->dimm[channel][1].reference_card <= 5) {
+
const int ref_card_offset_table[6][6] = {
- { 0, 0, 0, 0, 2, 2, },
- { 0, 0, 0, 0, 2, 2, },
- { 0, 0, 0, 0, 2, 2, },
- { 0, 0, 0, 0, 1, 1, },
- { 2, 2, 2, 1, 0, 0, },
- { 2, 2, 2, 1, 0, 0, },
+ { 0, 0, 0, 0, 2, 2 },
+ { 0, 0, 0, 0, 2, 2 },
+ { 0, 0, 0, 0, 2, 2 },
+ { 0, 0, 0, 0, 1, 1 },
+ { 2, 2, 2, 1, 0, 0 },
+ { 2, 2, 2, 1, 0, 0 },
};
- ctrl->ref_card_offset[channel] = ref_card_offset_table[dimm->dimm[channel][0].reference_card]
- [dimm->dimm[channel][1].reference_card];
- } else
+ ctrl->ref_card_offset[channel] = ref_card_offset_table
+ [dimm->dimm[channel][0].reference_card]
+ [dimm->dimm[channel][1].reference_card];
+ } else {
ctrl->ref_card_offset[channel] = 0;
+ }
}
if (!dimms)
@@ -265,29 +274,24 @@ static void dram_find_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl)
static void save_timings(ramctr_timing *ctrl)
{
/* Save the MRC S3 restore data to cbmem */
- mrc_cache_stash_data(MRC_TRAINING_DATA, MRC_CACHE_VERSION, ctrl,
- sizeof(*ctrl));
+ mrc_cache_stash_data(MRC_TRAINING_DATA, MRC_CACHE_VERSION, ctrl, sizeof(*ctrl));
}
-static int try_init_dram_ddr3(ramctr_timing *ctrl, int fast_boot,
- int s3_resume, int me_uma_size)
+static int try_init_dram_ddr3(ramctr_timing *ctrl, int fast_boot, int s3resume, int me_uma_size)
{
if (ctrl->sandybridge)
- return try_init_dram_ddr3_sandy(ctrl, fast_boot, s3_resume, me_uma_size);
+ return try_init_dram_ddr3_snb(ctrl, fast_boot, s3resume, me_uma_size);
else
- return try_init_dram_ddr3_ivy(ctrl, fast_boot, s3_resume, me_uma_size);
+ return try_init_dram_ddr3_ivb(ctrl, fast_boot, s3resume, me_uma_size);
}
static void init_dram_ddr3(int min_tck, int s3resume)
{
- int me_uma_size;
- int cbmem_was_inited;
+ int me_uma_size, cbmem_was_inited, fast_boot, err;
ramctr_timing ctrl;
- int fast_boot;
spd_raw_data spds[4];
struct region_device rdev;
ramctr_timing *ctrl_cached;
- int err;
u32 cpu;
MCHBAR32(SAPMCTL) |= 1;
@@ -298,17 +302,14 @@ static void init_dram_ddr3(int min_tck, int s3resume)
printk(BIOS_DEBUG, "Starting native Platform init\n");
- u32 reg_5d10;
-
wait_txt_clear();
wrmsr(0x000002e6, (msr_t) { .lo = 0, .hi = 0 });
- reg_5d10 = MCHBAR32(0x5d10); // !!! = 0x00000000
- if ((pci_read_config16(SOUTHBRIDGE, 0xa2) & 0xa0) == 0x20 /* 0x0004 */
- && reg_5d10 && !s3resume) {
- MCHBAR32(0x5d10) = 0;
- /* Need reset. */
+ const u32 sskpd = MCHBAR32(SSKPD); // !!! = 0x00000000
+ if ((pci_read_config16(SOUTHBRIDGE, 0xa2) & 0xa0) == 0x20 && sskpd && !s3resume) {
+ MCHBAR32(SSKPD) = 0;
+ /* Need reset */
system_reset();
}
@@ -316,10 +317,9 @@ static void init_dram_ddr3(int min_tck, int s3resume)
early_init_dmi();
early_thermal_init();
- /* try to find timings in MRC cache */
- int cache_not_found = mrc_cache_get_current(MRC_TRAINING_DATA,
- MRC_CACHE_VERSION, &rdev);
- if (cache_not_found || (region_device_sz(&rdev) < sizeof(ctrl))) {
+ /* Try to find timings in MRC cache */
+ err = mrc_cache_get_current(MRC_TRAINING_DATA, MRC_CACHE_VERSION, &rdev);
+ if (err || (region_device_sz(&rdev) < sizeof(ctrl))) {
if (s3resume) {
/* Failed S3 resume, reset to come up cleanly */
system_reset();
@@ -329,7 +329,7 @@ static void init_dram_ddr3(int min_tck, int s3resume)
ctrl_cached = rdev_mmap_full(&rdev);
}
- /* verify MRC cache for fast boot */
+ /* Verify MRC cache for fast boot */
if (!s3resume && ctrl_cached) {
/* Load SPD unique information data. */
memset(spds, 0, sizeof(spds));
@@ -353,8 +353,8 @@ static void init_dram_ddr3(int min_tck, int s3resume)
/* Failed S3 resume, reset to come up cleanly */
system_reset();
}
- /* no need to erase bad mrc cache here, it gets overwritten on
- * successful boot. */
+ /* No need to erase bad MRC cache here, it gets overwritten on a
+ successful boot */
printk(BIOS_ERR, "Stored timings are invalid !\n");
fast_boot = 0;
}
@@ -377,7 +377,7 @@ static void init_dram_ddr3(int min_tck, int s3resume)
}
if (err) {
- /* fallback: disable failing channel */
+ /* Fallback: disable failing channel */
printk(BIOS_ERR, "RAM training failed, trying fallback.\n");
printram("Disable failing channel.\n");
@@ -392,7 +392,7 @@ static void init_dram_ddr3(int min_tck, int s3resume)
/* Reset DDR3 frequency */
dram_find_spds_ddr3(spds, &ctrl);
- /* disable failing channel */
+ /* Disable failing channel */
disable_channel(&ctrl, GET_ERR_CHANNEL(err));
err = try_init_dram_ddr3(&ctrl, fast_boot, s3resume, me_uma_size);
diff --git a/src/northbridge/intel/sandybridge/raminit.h b/src/northbridge/intel/sandybridge/raminit.h
index 1939c83095..6febfa3f61 100644
--- a/src/northbridge/intel/sandybridge/raminit.h
+++ b/src/northbridge/intel/sandybridge/raminit.h
@@ -29,4 +29,4 @@ void save_mrc_data(struct pei_data *pei_data);
void mainboard_fill_pei_data(struct pei_data *pei_data);
int fixup_sandybridge_errata(void);
-#endif /* RAMINIT_H */
+#endif /* RAMINIT_H */
diff --git a/src/northbridge/intel/sandybridge/raminit_common.c b/src/northbridge/intel/sandybridge/raminit_common.c
index 3c3546a65e..2cb6a8337b 100644
--- a/src/northbridge/intel/sandybridge/raminit_common.c
+++ b/src/northbridge/intel/sandybridge/raminit_common.c
@@ -26,163 +26,8 @@
#include "raminit_common.h"
#include "sandybridge.h"
-/* FIXME: no ECC support. */
-/* FIXME: no support for 3-channel chipsets. */
-
-/*
- * ### IOSAV command queue notes ###
- *
- * Intel provides a command queue of depth four.
- * Every command is configured by using multiple MCHBAR registers.
- * On executing the command queue, you have to specify its depth (number of commands).
- *
- * The macros for these registers can take some integer parameters, within these bounds:
- * channel: [0..1]
- * index: [0..3]
- * lane: [0..8]
- *
- * Note that these ranges are 'closed': both endpoints are included.
- *
- *
- *
- * ### Register description ###
- *
- * IOSAV_n_SP_CMD_ADDR_ch(channel, index)
- * Sub-sequence command addresses. Controls the address, bank address and slotrank signals.
- *
- * Bitfields:
- * [0..15] Row / Column Address.
- * [16..18] The result of (10 + [16..18]) is the number of valid row bits.
- * Note: Value 1 is not implemented. Not that it really matters, though.
- * Value 7 is reserved, as the hardware does not support it.
- * [20..22] Bank Address.
- * [24..25] Rank select. Let's call it "ranksel", as it is mentioned later.
- *
- * IOSAV_n_ADDR_UPD_ch(channel, index)
- * How the address shall be updated after executing the sub-sequence command.
- *
- * Bitfields:
- * [0] Increment CAS/RAS by 1.
- * [1] Increment CAS/RAS by 8.
- * [2] Increment bank select by 1.
- * [3..4] Increment rank select by 1, 2 or 3.
- * [5..9] Known as "addr_wrap". Address bits will wrap around the [addr_wrap..0] range.
- * [10..11] LFSR update:
- * 00: Do not use the LFSR function.
- * 01: Undefined, treat as Reserved.
- * 10: Apply LFSR on the [addr_wrap..0] bit range.
- * 11: Apply LFSR on the [addr_wrap..3] bit range.
- *
- * [12..15] Update rate. The number of command runs between address updates. For example:
- * 0: Update every command run.
- * 1: Update every second command run. That is, half of the command rate.
- * N: Update after N command runs without updates.
- *
- * [16..17] LFSR behavior on the deselect cycles (when no sub-seq command is issued):
- * 0: No change w.r.t. the last issued command.
- * 1: LFSR XORs with address & command (excluding CS), but does not update.
- * 2: LFSR XORs with address & command (excluding CS), and updates.
- *
- * IOSAV_n_SP_CMD_CTL_ch(channel, index)
- * Special command control register. Controls the DRAM command signals.
- *
- * Bitfields:
- * [0] !RAS signal.
- * [1] !CAS signal.
- * [2] !WE signal.
- * [4..7] CKE, per rank and channel.
- * [8..11] ODT, per rank and channel.
- * [12] Chip Select mode control.
- * [13..16] Chip select, per rank and channel. It works as follows:
- *
- * entity CS_BLOCK is
- * port (
- * MODE : in std_logic; -- Mode select at [12]
- * RANKSEL : in std_logic_vector(0 to 3); -- Decoded "ranksel" value
- * CS_CTL : in std_logic_vector(0 to 3); -- Chip select control at [13..16]
- * CS_Q : out std_logic_vector(0 to 3) -- CS signals
- * );
- * end entity CS_BLOCK;
- *
- * architecture RTL of CS_BLOCK is
- * begin
- * if MODE = '1' then
- * CS_Q <= not RANKSEL and CS_CTL;
- * else
- * CS_Q <= CS_CTL;
- * end if;
- * end architecture RTL;
- *
- * [17] Auto Precharge. Only valid when using 10 row bits!
- *
- * IOSAV_n_SUBSEQ_CTL_ch(channel, index)
- * Sub-sequence parameters. Controls repetititons, delays and data orientation.
- *
- * Bitfields:
- * [0..8] Number of repetitions of the sub-sequence command.
- * [10..14] Gap, number of clock-cycles to wait before sending the next command.
- * [16..24] Number of clock-cycles to idle between sub-sequence commands.
- * [26..27] The direction of the data.
- * 00: None, does not handle data
- * 01: Read
- * 10: Write
- * 11: Read & Write
- *
- * IOSAV_n_ADDRESS_LFSR_ch(channel, index)
- * 23-bit LFSR state register. It is written into the LFSR when the sub-sequence is loaded,
- * and then read back from the LFSR when the sub-sequence is done.
- *
- * Bitfields:
- * [0..22] LFSR state.
- *
- * IOSAV_SEQ_CTL_ch(channel)
- * Control the sequence level in IOSAV: number of sub-sequences, iterations, maintenance...
- *
- * Bitfields:
- * [0..7] Number of full sequence executions. When this field becomes non-zero, then the
- * sequence starts running immediately. This value is decremented after completing
- * a full sequence iteration. When it is zero, the sequence is done. No decrement
- * is done if this field is set to 0xff. This is the "infinite repeat" mode, and
- * it is manually aborted by clearing this field.
- *
- * [8..16] Number of wait cycles after each sequence iteration. This wait's purpose is to
- * allow performing maintenance in infinite loops. When non-zero, RCOMP, refresh
- * and ZQXS operations can take place.
- *
- * [17] Stop-on-error mode: Whether to stop sequence execution when an error occurs.
- * [18..19] Number of sub-sequences. The programmed value is the index of the last sub-seq.
- * [20] If set, keep refresh disabled until the next sequence execution.
- * DANGER: Refresh must be re-enabled within the (9 * tREFI) period!
- *
- * [22] If set, sequence execution will not prevent refresh. This cannot be set when
- * bit [20] is also set, or was set on the previous sequence. This bit exists so
- * that the sequence machine can be used as a timer without affecting the memory.
- *
- * [23] If set, a output pin is asserted on the first detected error. This output can
- * be used as a trigger for an oscilloscope or a logic analyzer, which is handy.
- *
- * IOSAV_DATA_CTL_ch(channel)
- * Data-related controls in IOSAV mode.
- *
- * Bitfields:
- * [0..7] WDB (Write Data Buffer) pattern length: [0..7] = (length / 8) - 1;
- * [8..15] WDB read pointer. Points at the data used for IOSAV write transactions.
- * [16..23] Comparison pointer. Used to compare data from IOSAV read transactions.
- * [24] If set, increment pointers only when micro-breakpoint is active.
- *
- * IOSAV_STATUS_ch(channel)
- * State of the IOSAV sequence machine. Should be polled after sending an IOSAV sequence.
- *
- * Bitfields:
- * [0] IDLE: IOSAV is sleeping.
- * [1] BUSY: IOSAV is running a sequence.
- * [2] DONE: IOSAV has completed a sequence.
- * [3] ERROR: IOSAV detected an error and stopped on it, when using Stop-on-error.
- * [4] PANIC: The refresh machine issued a Panic Refresh, and IOSAV was aborted.
- * [5] RCOMP: RComp failure. Unused, consider Reserved.
- * [6] Cleared with a new sequence, and set when done and refresh counter is drained.
- *
- */
+/* FIXME: no ECC support */
+/* FIXME: no support for 3-channel chipsets */
/* length: [1..4] */
#define IOSAV_RUN_ONCE(length) ((((length) - 1) << 18) | 1)
@@ -192,10 +37,11 @@ static void sfence(void)
asm volatile ("sfence");
}
-static void toggle_io_reset(void) {
- /* toggle IO reset bit */
+/* Toggle IO reset bit */
+static void toggle_io_reset(void)
+{
u32 r32 = MCHBAR32(MC_INIT_STATE_G);
- MCHBAR32(MC_INIT_STATE_G) = r32 | 0x20;
+ MCHBAR32(MC_INIT_STATE_G) = r32 | 0x20;
udelay(1);
MCHBAR32(MC_INIT_STATE_G) = r32 & ~0x20;
udelay(1);
@@ -210,43 +56,49 @@ static u32 get_XOVER_CMD(u8 rankmap)
{
u32 reg;
- // enable xover cmd
+ /* Enable xover cmd */
reg = 0x4000;
- // enable xover ctl
- if (rankmap & 0x3)
- reg |= 0x20000;
+ /* Enable xover ctl */
+ if (rankmap & 0x03)
+ reg |= (1 << 17);
- if (rankmap & 0xc)
- reg |= 0x4000000;
+ if (rankmap & 0x0c)
+ reg |= (1 << 26);
return reg;
}
-/* CAS write latency. To be programmed in MR2.
- * See DDR3 SPEC for MR2 documentation. */
+/* CAS write latency. To be programmed in MR2. See DDR3 SPEC for MR2 documentation. */
u8 get_CWL(u32 tCK)
{
- /* Get CWL based on tCK using the following rule: */
+ /* Get CWL based on tCK using the following rule */
switch (tCK) {
case TCK_1333MHZ:
return 12;
+
case TCK_1200MHZ:
case TCK_1100MHZ:
return 11;
+
case TCK_1066MHZ:
case TCK_1000MHZ:
return 10;
+
case TCK_933MHZ:
case TCK_900MHZ:
return 9;
+
case TCK_800MHZ:
case TCK_700MHZ:
return 8;
+
case TCK_666MHZ:
return 7;
+
case TCK_533MHZ:
return 6;
+
default:
return 5;
}
@@ -260,22 +112,25 @@ void dram_find_common_params(ramctr_timing *ctrl)
ctrl->cas_supported = (1 << (MAX_CAS - MIN_CAS + 1)) - 1;
valid_dimms = 0;
+
FOR_ALL_CHANNELS for (slot = 0; slot < 2; slot++) {
+
const dimm_attr *dimm = &dimms->dimm[channel][slot];
if (dimm->dram_type != SPD_MEMORY_TYPE_SDRAM_DDR3)
continue;
+
valid_dimms++;
/* Find all possible CAS combinations */
ctrl->cas_supported &= dimm->cas_supported;
/* Find the smallest common latencies supported by all DIMMs */
- ctrl->tCK = MAX(ctrl->tCK, dimm->tCK);
- ctrl->tAA = MAX(ctrl->tAA, dimm->tAA);
- ctrl->tWR = MAX(ctrl->tWR, dimm->tWR);
+ ctrl->tCK = MAX(ctrl->tCK, dimm->tCK);
+ ctrl->tAA = MAX(ctrl->tAA, dimm->tAA);
+ ctrl->tWR = MAX(ctrl->tWR, dimm->tWR);
ctrl->tRCD = MAX(ctrl->tRCD, dimm->tRCD);
ctrl->tRRD = MAX(ctrl->tRRD, dimm->tRRD);
- ctrl->tRP = MAX(ctrl->tRP, dimm->tRP);
+ ctrl->tRP = MAX(ctrl->tRP, dimm->tRP);
ctrl->tRAS = MAX(ctrl->tRAS, dimm->tRAS);
ctrl->tRFC = MAX(ctrl->tRFC, dimm->tRFC);
ctrl->tWTR = MAX(ctrl->tWTR, dimm->tWTR);
@@ -286,8 +141,8 @@ void dram_find_common_params(ramctr_timing *ctrl)
}
if (!ctrl->cas_supported)
- die("Unsupported DIMM combination. "
- "DIMMS do not support common CAS latency");
+ die("Unsupported DIMM combination. DIMMS do not support common CAS latency");
+
if (!valid_dimms)
die("No valid DIMMs found");
}
@@ -298,12 +153,12 @@ void dram_xover(ramctr_timing *ctrl)
int channel;
FOR_ALL_CHANNELS {
- // enable xover clk
+ /* Enable xover clk */
reg = get_XOVER_CLK(ctrl->rankmap[channel]);
printram("XOVER CLK [%x] = %x\n", GDCRCKPICODE_ch(channel), reg);
MCHBAR32(GDCRCKPICODE_ch(channel)) = reg;
- // enable xover ctl & xover cmd
+ /* Enable xover ctl & xover cmd */
reg = get_XOVER_CMD(ctrl->rankmap[channel]);
printram("XOVER CMD [%x] = %x\n", GDCRCMDPICODING_ch(channel), reg);
MCHBAR32(GDCRCMDPICODING_ch(channel)) = reg;
@@ -315,22 +170,21 @@ static void dram_odt_stretch(ramctr_timing *ctrl, int channel)
u32 addr, cpu, stretch;
stretch = ctrl->ref_card_offset[channel];
- /* ODT stretch: Delay ODT signal by stretch value.
- * Useful for multi DIMM setups on the same channel. */
+ /*
+ * ODT stretch:
+ * Delay ODT signal by stretch value. Useful for multi DIMM setups on the same channel.
+ */
cpu = cpu_get_cpuid();
if (IS_SANDY_CPU(cpu) && IS_SANDY_CPU_C(cpu)) {
if (stretch == 2)
stretch = 3;
+
addr = SCHED_SECOND_CBIT_ch(channel);
- MCHBAR32_AND_OR(addr, 0xffffc3ff,
- (stretch << 12) | (stretch << 10));
- printk(RAM_DEBUG, "OTHP Workaround [%x] = %x\n", addr,
- MCHBAR32(addr));
+ MCHBAR32_AND_OR(addr, 0xffffc3ff, (stretch << 12) | (stretch << 10));
+ printk(RAM_DEBUG, "OTHP Workaround [%x] = %x\n", addr, MCHBAR32(addr));
} else {
- // OTHP
addr = TC_OTHP_ch(channel);
- MCHBAR32_AND_OR(addr, 0xfff0ffff,
- (stretch << 16) | (stretch << 18));
+ MCHBAR32_AND_OR(addr, 0xfff0ffff, (stretch << 16) | (stretch << 18));
printk(RAM_DEBUG, "OTHP [%x] = %x\n", addr, MCHBAR32(addr));
}
}
@@ -341,38 +195,39 @@ void dram_timing_regs(ramctr_timing *ctrl)
int channel;
FOR_ALL_CHANNELS {
- // DBP
+ /* BIN parameters */
reg = 0;
- reg |= ctrl->tRCD;
- reg |= (ctrl->tRP << 4);
- reg |= (ctrl->CAS << 8);
- reg |= (ctrl->CWL << 12);
+ reg |= (ctrl->tRCD << 0);
+ reg |= (ctrl->tRP << 4);
+ reg |= (ctrl->CAS << 8);
+ reg |= (ctrl->CWL << 12);
reg |= (ctrl->tRAS << 16);
printram("DBP [%x] = %x\n", TC_DBP_ch(channel), reg);
MCHBAR32(TC_DBP_ch(channel)) = reg;
- // RAP
+ /* Regular access parameters */
reg = 0;
- reg |= ctrl->tRRD;
- reg |= (ctrl->tRTP << 4);
- reg |= (ctrl->tCKE << 8);
+ reg |= (ctrl->tRRD << 0);
+ reg |= (ctrl->tRTP << 4);
+ reg |= (ctrl->tCKE << 8);
reg |= (ctrl->tWTR << 12);
reg |= (ctrl->tFAW << 16);
- reg |= (ctrl->tWR << 24);
+ reg |= (ctrl->tWR << 24);
reg |= (3 << 30);
printram("RAP [%x] = %x\n", TC_RAP_ch(channel), reg);
MCHBAR32(TC_RAP_ch(channel)) = reg;
- // OTHP
+ /* Other parameters */
addr = TC_OTHP_ch(channel);
reg = 0;
- reg |= ctrl->tXPDLL;
- reg |= (ctrl->tXP << 5);
+ reg |= (ctrl->tXPDLL << 0);
+ reg |= (ctrl->tXP << 5);
reg |= (ctrl->tAONPD << 8);
reg |= 0xa0000;
printram("OTHP [%x] = %x\n", addr, reg);
MCHBAR32(addr) = reg;
+ /* FIXME: This register might as well not exist */
MCHBAR32(0x4014 + channel * 0x400) = 0;
MCHBAR32_OR(addr, 0x00020000);
@@ -380,33 +235,31 @@ void dram_timing_regs(ramctr_timing *ctrl)
dram_odt_stretch(ctrl, channel);
/*
- * TC-Refresh timing parameters
- * The tREFIx9 field should be programmed to minimum of
- * 8.9*tREFI (to allow for possible delays from ZQ or
- * isoc) and tRASmax (70us) divided by 1024.
+ * TC-Refresh timing parameters:
+ * The tREFIx9 field should be programmed to minimum of 8.9 * tREFI (to allow
+ * for possible delays from ZQ or isoc) and tRASmax (70us) divided by 1024.
*/
val32 = MIN((ctrl->tREFI * 89) / 10, (70000 << 8) / ctrl->tCK);
- reg = ((ctrl->tREFI & 0xffff) << 0) |
- ((ctrl->tRFC & 0x1ff) << 16) |
- (((val32 / 1024) & 0x7f) << 25);
+ reg = ((ctrl->tREFI & 0xffff) << 0) |
+ ((ctrl->tRFC & 0x01ff) << 16) | (((val32 / 1024) & 0x7f) << 25);
+
printram("REFI [%x] = %x\n", TC_RFTP_ch(channel), reg);
MCHBAR32(TC_RFTP_ch(channel)) = reg;
MCHBAR32_OR(TC_RFP_ch(channel), 0xff);
- // SRFTP
+ /* Self-refresh timing parameters */
reg = 0;
val32 = tDLLK;
- reg = (reg & ~0xfff) | val32;
+ reg = (reg & ~0x00000fff) | (val32 << 0);
val32 = ctrl->tXSOffset;
- reg = (reg & ~0xf000) | (val32 << 12);
+ reg = (reg & ~0x0000f000) | (val32 << 12);
val32 = tDLLK - ctrl->tXSOffset;
- reg = (reg & ~0x3ff0000) | (val32 << 16);
+ reg = (reg & ~0x03ff0000) | (val32 << 16);
val32 = ctrl->tMOD - 8;
- reg = (reg & ~0xf0000000) | (val32 << 28);
- printram("SRFTP [%x] = %x\n", TC_SRFTP_ch(channel),
- reg);
+ reg = (reg & ~0xf0000000) | (val32 << 28);
+ printram("SRFTP [%x] = %x\n", TC_SRFTP_ch(channel), reg);
MCHBAR32(TC_SRFTP_ch(channel)) = reg;
}
}
@@ -420,34 +273,32 @@ void dram_dimm_mapping(ramctr_timing *ctrl)
dimm_attr *dimmA, *dimmB;
u32 reg = 0;
- if (info->dimm[channel][0].size_mb >=
- info->dimm[channel][1].size_mb) {
+ if (info->dimm[channel][0].size_mb >= info->dimm[channel][1].size_mb) {
dimmA = &info->dimm[channel][0];
dimmB = &info->dimm[channel][1];
- reg |= 0 << 16;
+ reg |= (0 << 16);
} else {
dimmA = &info->dimm[channel][1];
dimmB = &info->dimm[channel][0];
- reg |= 1 << 16;
+ reg |= (1 << 16);
}
if (dimmA && (dimmA->ranks > 0)) {
- reg |= dimmA->size_mb / 256;
- reg |= (dimmA->ranks - 1) << 17;
+ reg |= (dimmA->size_mb / 256) << 0;
+ reg |= (dimmA->ranks - 1) << 17;
reg |= (dimmA->width / 8 - 1) << 19;
}
if (dimmB && (dimmB->ranks > 0)) {
- reg |= (dimmB->size_mb / 256) << 8;
- reg |= (dimmB->ranks - 1) << 18;
+ reg |= (dimmB->size_mb / 256) << 8;
+ reg |= (dimmB->ranks - 1) << 18;
reg |= (dimmB->width / 8 - 1) << 20;
}
- reg |= 1 << 21; /* rank interleave */
- reg |= 1 << 22; /* enhanced interleave */
+ reg |= 1 << 21; /* Rank interleave */
+ reg |= 1 << 22; /* Enhanced interleave */
- if ((dimmA && (dimmA->ranks > 0))
- || (dimmB && (dimmB->ranks > 0))) {
+ if ((dimmA && (dimmA->ranks > 0)) || (dimmB && (dimmB->ranks > 0))) {
ctrl->mad_dimm[channel] = reg;
} else {
ctrl->mad_dimm[channel] = 0;
@@ -459,7 +310,7 @@ void dram_dimm_set_mapping(ramctr_timing *ctrl)
{
int channel;
FOR_ALL_CHANNELS {
- MCHBAR32(MAD_DIMM_CH0 + channel * 4) = ctrl->mad_dimm[channel];
+ MCHBAR32(MAD_DIMM(channel)) = ctrl->mad_dimm[channel];
}
}
@@ -469,6 +320,7 @@ void dram_zones(ramctr_timing *ctrl, int training)
u8 val;
reg = 0;
val = 0;
+
if (training) {
ch0size = ctrl->channel_size_mb[0] ? 256 : 0;
ch1size = ctrl->channel_size_mb[1] ? 256 : 0;
@@ -481,14 +333,15 @@ void dram_zones(ramctr_timing *ctrl, int training)
reg = MCHBAR32(MAD_ZR);
val = ch1size / 256;
reg = (reg & ~0xff000000) | val << 24;
- reg = (reg & ~0xff0000) | (2 * val) << 16;
+ reg = (reg & ~0x00ff0000) | (2 * val) << 16;
MCHBAR32(MAD_ZR) = reg;
MCHBAR32(MAD_CHNL) = 0x24;
+
} else {
reg = MCHBAR32(MAD_ZR);
val = ch0size / 256;
reg = (reg & ~0xff000000) | val << 24;
- reg = (reg & ~0xff0000) | (2 * val) << 16;
+ reg = (reg & ~0x00ff0000) | (2 * val) << 16;
MCHBAR32(MAD_ZR) = reg;
MCHBAR32(MAD_CHNL) = 0x21;
}
@@ -509,13 +362,14 @@ unsigned int get_mem_min_tck(void)
/* If this is zero, it just means devicetree.cb didn't set it */
if (!cfg || cfg->max_mem_clock_mhz == 0) {
+
if (CONFIG(NATIVE_RAMINIT_IGNORE_MAX_MEM_FUSES))
return TCK_1333MHZ;
rev = pci_read_config8(HOST_BRIDGE, PCI_DEVICE_ID);
if ((rev & BASE_REV_MASK) == BASE_REV_SNB) {
- /* read Capabilities A Register DMFC bits */
+ /* Read Capabilities A Register DMFC bits */
reg32 = pci_read_config32(HOST_BRIDGE, CAPID0_A);
reg32 &= 0x7;
@@ -523,12 +377,12 @@ unsigned int get_mem_min_tck(void)
case 7: return TCK_533MHZ;
case 6: return TCK_666MHZ;
case 5: return TCK_800MHZ;
- /* reserved: */
+ /* Reserved */
default:
break;
}
} else {
- /* read Capabilities B Register DMFC bits */
+ /* Read Capabilities B Register DMFC bits */
reg32 = pci_read_config32(HOST_BRIDGE, CAPID0_B);
reg32 = (reg32 >> 4) & 0x7;
@@ -540,7 +394,7 @@ unsigned int get_mem_min_tck(void)
case 3: return TCK_1066MHZ;
case 2: return TCK_1200MHZ;
case 1: return TCK_1333MHZ;
- /* reserved: */
+ /* Reserved */
default:
break;
}
@@ -582,11 +436,9 @@ static unsigned int get_mmio_size(void)
void dram_memorymap(ramctr_timing *ctrl, int me_uma_size)
{
- u32 reg, val, reclaim;
- u32 tom, gfxstolen, gttsize;
- size_t tsegsize, mmiosize, toludbase, touudbase, gfxstolenbase, gttbase,
- tsegbase, mestolenbase;
- size_t tsegbasedelta, remapbase, remaplimit;
+ u32 reg, val, reclaim, tom, gfxstolen, gttsize;
+ size_t tsegbase, toludbase, remapbase, gfxstolenbase, mmiosize, gttbase;
+ size_t tsegsize, touudbase, remaplimit, mestolenbase, tsegbasedelta;
uint16_t ggc;
mmiosize = get_mmio_size();
@@ -594,10 +446,10 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size)
ggc = pci_read_config16(HOST_BRIDGE, GGC);
if (!(ggc & 2)) {
gfxstolen = ((ggc >> 3) & 0x1f) * 32;
- gttsize = ((ggc >> 8) & 0x3);
+ gttsize = ((ggc >> 8) & 0x3);
} else {
gfxstolen = 0;
- gttsize = 0;
+ gttsize = 0;
}
tsegsize = CONFIG_SMM_TSEG_SIZE >> 20;
@@ -606,14 +458,14 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size)
mestolenbase = tom - me_uma_size;
- toludbase = MIN(4096 - mmiosize + gfxstolen + gttsize + tsegsize,
- tom - me_uma_size);
+ toludbase = MIN(4096 - mmiosize + gfxstolen + gttsize + tsegsize, tom - me_uma_size);
+
gfxstolenbase = toludbase - gfxstolen;
gttbase = gfxstolenbase - gttsize;
tsegbase = gttbase - tsegsize;
- // Round tsegbase down to nearest address aligned to tsegsize
+ /* Round tsegbase down to nearest address aligned to tsegsize */
tsegbasedelta = tsegbase & (tsegsize - 1);
tsegbase &= ~(tsegsize - 1);
@@ -621,24 +473,23 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size)
gfxstolenbase -= tsegbasedelta;
toludbase -= tsegbasedelta;
- // Test if it is possible to reclaim a hole in the RAM addressing
+ /* Test if it is possible to reclaim a hole in the RAM addressing */
if (tom - me_uma_size > toludbase) {
- // Reclaim is possible
- reclaim = 1;
- remapbase = MAX(4096, tom - me_uma_size);
- remaplimit =
- remapbase + MIN(4096, tom - me_uma_size) - toludbase - 1;
- touudbase = remaplimit + 1;
+ /* Reclaim is possible */
+ reclaim = 1;
+ remapbase = MAX(4096, tom - me_uma_size);
+ remaplimit = remapbase + MIN(4096, tom - me_uma_size) - toludbase - 1;
+ touudbase = remaplimit + 1;
} else {
// Reclaim not possible
- reclaim = 0;
+ reclaim = 0;
touudbase = tom - me_uma_size;
}
- // Update memory map in pci-e configuration space
+ /* Update memory map in PCIe configuration space */
printk(BIOS_DEBUG, "Update PCI-E configuration space:\n");
- // TOM (top of memory)
+ /* TOM (top of memory) */
reg = pci_read_config32(HOST_BRIDGE, TOM);
val = tom & 0xfff;
reg = (reg & ~0xfff00000) | (val << 20);
@@ -651,21 +502,21 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size)
printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TOM + 4, reg);
pci_write_config32(HOST_BRIDGE, TOM + 4, reg);
- // TOLUD (top of low used dram)
+ /* TOLUD (Top Of Low Usable DRAM) */
reg = pci_read_config32(HOST_BRIDGE, TOLUD);
val = toludbase & 0xfff;
reg = (reg & ~0xfff00000) | (val << 20);
printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TOLUD, reg);
pci_write_config32(HOST_BRIDGE, TOLUD, reg);
- // TOUUD LSB (top of upper usable dram)
+ /* TOUUD LSB (Top Of Upper Usable DRAM) */
reg = pci_read_config32(HOST_BRIDGE, TOUUD);
val = touudbase & 0xfff;
reg = (reg & ~0xfff00000) | (val << 20);
printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TOUUD, reg);
pci_write_config32(HOST_BRIDGE, TOUUD, reg);
- // TOUUD MSB
+ /* TOUUD MSB */
reg = pci_read_config32(HOST_BRIDGE, TOUUD + 4);
val = touudbase & 0xfffff000;
reg = (reg & ~0x000fffff) | (val >> 12);
@@ -673,29 +524,29 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size)
pci_write_config32(HOST_BRIDGE, TOUUD + 4, reg);
if (reclaim) {
- // REMAP BASE
- pci_write_config32(HOST_BRIDGE, REMAPBASE, remapbase << 20);
+ /* REMAP BASE */
+ pci_write_config32(HOST_BRIDGE, REMAPBASE, remapbase << 20);
pci_write_config32(HOST_BRIDGE, REMAPBASE + 4, remapbase >> 12);
- // REMAP LIMIT
- pci_write_config32(HOST_BRIDGE, REMAPLIMIT, remaplimit << 20);
+ /* REMAP LIMIT */
+ pci_write_config32(HOST_BRIDGE, REMAPLIMIT, remaplimit << 20);
pci_write_config32(HOST_BRIDGE, REMAPLIMIT + 4, remaplimit >> 12);
}
- // TSEG
+ /* TSEG */
reg = pci_read_config32(HOST_BRIDGE, TSEGMB);
val = tsegbase & 0xfff;
reg = (reg & ~0xfff00000) | (val << 20);
printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TSEGMB, reg);
pci_write_config32(HOST_BRIDGE, TSEGMB, reg);
- // GFX stolen memory
+ /* GFX stolen memory */
reg = pci_read_config32(HOST_BRIDGE, BDSM);
val = gfxstolenbase & 0xfff;
reg = (reg & ~0xfff00000) | (val << 20);
printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", BDSM, reg);
pci_write_config32(HOST_BRIDGE, BDSM, reg);
- // GTT stolen memory
+ /* GTT stolen memory */
reg = pci_read_config32(HOST_BRIDGE, BGSM);
val = gttbase & 0xfff;
reg = (reg & ~0xfff00000) | (val << 20);
@@ -709,7 +560,7 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size)
printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", MESEG_MASK + 4, reg);
pci_write_config32(HOST_BRIDGE, MESEG_MASK + 4, reg);
- // ME base
+ /* ME base */
reg = pci_read_config32(HOST_BRIDGE, MESEG_BASE);
val = mestolenbase & 0xfff;
reg = (reg & ~0xfff00000) | (val << 20);
@@ -722,12 +573,12 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size)
printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", MESEG_BASE + 4, reg);
pci_write_config32(HOST_BRIDGE, MESEG_BASE + 4, reg);
- // ME mask
+ /* ME mask */
reg = pci_read_config32(HOST_BRIDGE, MESEG_MASK);
val = (0x80000 - me_uma_size) & 0xfff;
reg = (reg & ~0xfff00000) | (val << 20);
- reg = reg | ME_STLEN_EN; // set ME memory enable
- reg = reg | MELCK; // set lockbit on ME mem
+ reg = reg | ME_STLEN_EN; /* Set ME memory enable */
+ reg = reg | MELCK; /* Set lock bit on ME mem */
printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", MESEG_MASK, reg);
pci_write_config32(HOST_BRIDGE, MESEG_MASK, reg);
}
@@ -745,21 +596,25 @@ static void write_reset(ramctr_timing *ctrl)
{
int channel, slotrank;
- /* choose a populated channel. */
+ /* Choose a populated channel */
channel = (ctrl->rankmap[0]) ? 0 : 1;
wait_for_iosav(channel);
- /* choose a populated rank. */
+ /* Choose a populated rank */
slotrank = (ctrl->rankmap[channel] & 1) ? 0 : 2;
/* DRAM command ZQCS */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f003;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x80c01;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x80c01;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0;
- // execute command queue - why is bit 22 set here?!
+ /*
+ * Execute command queue - why is bit 22 set here?!
+ *
+ * This is actually using the IOSAV state machine as a timer, so refresh is allowed.
+ */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = (1 << 22) | IOSAV_RUN_ONCE(1);
wait_for_iosav(channel);
@@ -770,101 +625,99 @@ void dram_jedecreset(ramctr_timing *ctrl)
u32 reg;
int channel;
- while (!(MCHBAR32(RCOMP_TIMER) & 0x10000));
+ while (!(MCHBAR32(RCOMP_TIMER) & (1 << 16)))
+ ;
do {
reg = MCHBAR32(IOSAV_STATUS_ch(0));
} while ((reg & 0x14) == 0);
- // Set state of memory controller
+ /* Set state of memory controller */
reg = 0x112;
MCHBAR32(MC_INIT_STATE_G) = reg;
MCHBAR32(MC_INIT_STATE) = 0;
- reg |= 2; //ddr reset
+ reg |= 2; /* DDR reset */
MCHBAR32(MC_INIT_STATE_G) = reg;
- // Assert dimm reset signal
- MCHBAR32_AND(MC_INIT_STATE_G, ~0x2);
+ /* Assert DIMM reset signal */
+ MCHBAR32_AND(MC_INIT_STATE_G, ~2);
- // Wait 200us
+ /* Wait 200us */
udelay(200);
- // Deassert dimm reset signal
+ /* Deassert DIMM reset signal */
MCHBAR32_OR(MC_INIT_STATE_G, 2);
- // Wait 500us
+ /* Wait 500us */
udelay(500);
- // Enable DCLK
+ /* Enable DCLK */
MCHBAR32_OR(MC_INIT_STATE_G, 4);
- // XXX Wait 20ns
+ /* XXX Wait 20ns */
udelay(1);
FOR_ALL_CHANNELS {
- // Set valid rank CKE
+ /* Set valid rank CKE */
reg = ctrl->rankmap[channel];
MCHBAR32(MC_INIT_STATE_ch(channel)) = reg;
- // Wait 10ns for ranks to settle
- //udelay(0.01);
+ /* Wait 10ns for ranks to settle */
+ // udelay(0.01);
reg = (reg & ~0xf0) | (ctrl->rankmap[channel] << 4);
MCHBAR32(MC_INIT_STATE_ch(channel)) = reg;
- // Write reset using a NOP
+ /* Write reset using a NOP */
write_reset(ctrl);
}
}
static odtmap get_ODT(ramctr_timing *ctrl, u8 rank, int channel)
{
- /* Get ODT based on rankmap: */
- int dimms_per_ch = (ctrl->rankmap[channel] & 1)
- + ((ctrl->rankmap[channel] >> 2) & 1);
+ /* Get ODT based on rankmap */
+ int dimms_per_ch = (ctrl->rankmap[channel] & 1) + ((ctrl->rankmap[channel] >> 2) & 1);
if (dimms_per_ch == 1) {
- return (const odtmap){60, 60};
+ return (const odtmap){60, 60};
} else {
return (const odtmap){120, 30};
}
}
-static void write_mrreg(ramctr_timing *ctrl, int channel, int slotrank,
- int reg, u32 val)
+static void write_mrreg(ramctr_timing *ctrl, int channel, int slotrank, int reg, u32 val)
{
wait_for_iosav(channel);
if (ctrl->rank_mirror[channel][slotrank]) {
/* DDR3 Rank1 Address mirror
- * swap the following pins:
- * A3<->A4, A5<->A6, A7<->A8, BA0<->BA1 */
+ swap the following pins:
+ A3<->A4, A5<->A6, A7<->A8, BA0<->BA1 */
reg = ((reg >> 1) & 1) | ((reg << 1) & 2);
- val = (val & ~0x1f8) | ((val >> 1) & 0xa8)
- | ((val & 0xa8) << 1);
+ val = (val & ~0x1f8) | ((val >> 1) & 0xa8) | ((val & 0xa8) << 1);
}
/* DRAM command MRS */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x41001;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x41001;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) =
(slotrank << 24) | (reg << 20) | val | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0;
/* DRAM command MRS */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x41001;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x41001;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) =
(slotrank << 24) | (reg << 20) | val | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0;
/* DRAM command MRS */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x0f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x1001 | (ctrl->tMOD << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x0f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x1001 | (ctrl->tMOD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) =
(slotrank << 24) | (reg << 20) | val | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(3);
}
@@ -877,7 +730,7 @@ static u32 make_mr0(ramctr_timing *ctrl, u8 rank)
/* DLL Reset - self clearing - set after CLK frequency has been changed */
mr0reg = 0x100;
- // Convert CAS to MCH register friendly
+ /* Convert CAS to MCH register friendly */
if (ctrl->CAS < 12) {
mch_cas = (u16) ((ctrl->CAS - 4) << 1);
} else {
@@ -885,15 +738,15 @@ static u32 make_mr0(ramctr_timing *ctrl, u8 rank)
mch_cas = ((mch_cas << 1) | 0x1);
}
- // Convert tWR to MCH register friendly
+ /* Convert tWR to MCH register friendly */
mch_wr = mch_wr_t[ctrl->tWR - 5];
- mr0reg = (mr0reg & ~0x4) | ((mch_cas & 0x1) << 2);
- mr0reg = (mr0reg & ~0x70) | ((mch_cas & 0xe) << 3);
- mr0reg = (mr0reg & ~0xe00) | (mch_wr << 9);
+ mr0reg = (mr0reg & ~0x0004) | ((mch_cas & 0x1) << 2);
+ mr0reg = (mr0reg & ~0x0070) | ((mch_cas & 0xe) << 3);
+ mr0reg = (mr0reg & ~0x0e00) | (mch_wr << 9);
- // Precharge PD - Fast (desktop) 0x1 or slow (mobile) 0x0 - mostly power-saving feature
- mr0reg = (mr0reg & ~0x1000) | (!is_mobile << 12);
+ /* Precharge PD - Fast (desktop) 1 or slow (mobile) 0 - mostly power-saving feature */
+ mr0reg = (mr0reg & ~(1 << 12)) | (!is_mobile << 12);
return mr0reg;
}
@@ -923,7 +776,7 @@ static u32 make_mr1(ramctr_timing *ctrl, u8 rank, int channel)
u32 mr1reg;
odt = get_ODT(ctrl, rank, channel);
- mr1reg = 0x2;
+ mr1reg = 2;
mr1reg |= encode_odt(odt.rttnom);
@@ -952,7 +805,7 @@ static void dram_mr2(ramctr_timing *ctrl, u8 rank, int channel)
srt = ctrl->extended_temperature_range && !ctrl->auto_self_refresh;
mr2reg = 0;
- mr2reg = (mr2reg & ~0x7) | pasr;
+ mr2reg = (mr2reg & ~0x07) | pasr;
mr2reg = (mr2reg & ~0x38) | (cwl << 3);
mr2reg = (mr2reg & ~0x40) | (ctrl->auto_self_refresh << 6);
mr2reg = (mr2reg & ~0x80) | (srt << 7);
@@ -973,42 +826,41 @@ void dram_mrscommands(ramctr_timing *ctrl)
FOR_ALL_POPULATED_CHANNELS {
FOR_ALL_POPULATED_RANKS {
- // MR2
+ /* MR2 */
dram_mr2(ctrl, slotrank, channel);
- // MR3
+ /* MR3 */
dram_mr3(ctrl, slotrank, channel);
- // MR1
+ /* MR1 */
dram_mr1(ctrl, slotrank, channel);
- // MR0
+ /* MR0 */
dram_mr0(ctrl, slotrank, channel);
}
}
/* DRAM command NOP */
- MCHBAR32(IOSAV_n_SP_CMD_CTL(0)) = 0x7;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL(0)) = 0xf1001;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL(0)) = 0x7;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL(0)) = 0xf1001;
MCHBAR32(IOSAV_n_SP_CMD_ADDR(0)) = 0x60002;
- MCHBAR32(IOSAV_n_ADDR_UPD(0)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE(0)) = 0;
/* DRAM command ZQCL */
- MCHBAR32(IOSAV_n_SP_CMD_CTL(1)) = 0x1f003;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL(1)) = 0x1901001;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL(1)) = 0x1f003;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL(1)) = 0x1901001;
MCHBAR32(IOSAV_n_SP_CMD_ADDR(1)) = 0x60400;
- MCHBAR32(IOSAV_n_ADDR_UPD(1)) = 0x288;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE(1)) = 0x288;
- // execute command queue on all channels? Why isn't bit 0 set here?
- MCHBAR32(IOSAV_SEQ_CTL) = 0x40004;
+ /* Execute command queue on all channels. Do it four times. */
+ MCHBAR32(IOSAV_SEQ_CTL) = (1 << 18) | 4;
- // Drain
FOR_ALL_CHANNELS {
- // Wait for ref drained
+ /* Wait for ref drained */
wait_for_iosav(channel);
}
- // Refresh enable
+ /* Refresh enable */
MCHBAR32_OR(MC_INIT_STATE_G, 8);
FOR_ALL_POPULATED_CHANNELS {
@@ -1018,20 +870,19 @@ void dram_mrscommands(ramctr_timing *ctrl)
slotrank = (ctrl->rankmap[channel] & 1) ? 0 : 2;
- // Drain
+ /* Drain */
wait_for_iosav(channel);
/* DRAM command ZQCS */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f003;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x659001;
- MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) =
- (slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x3e0;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x659001;
+ MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1);
- // Drain
+ /* Drain */
wait_for_iosav(channel);
}
}
@@ -1063,42 +914,41 @@ void program_timings(ramctr_timing *ctrl, int channel)
break;
case 1:
pi_coding_ctrl[slot] =
- ctrl->timings[channel][2 * slot + 0].pi_coding +
- full_shift;
+ ctrl->timings[channel][2 * slot + 0].pi_coding + full_shift;
break;
case 2:
pi_coding_ctrl[slot] =
- ctrl->timings[channel][2 * slot + 1].pi_coding +
- full_shift;
+ ctrl->timings[channel][2 * slot + 1].pi_coding + full_shift;
break;
case 3:
pi_coding_ctrl[slot] =
(ctrl->timings[channel][2 * slot].pi_coding +
- ctrl->timings[channel][2 * slot + 1].pi_coding) / 2 +
- full_shift;
+ ctrl->timings[channel][2 * slot + 1].pi_coding) / 2 + full_shift;
break;
}
- /* enable CMD XOVER */
+ /* Enable CMD XOVER */
reg32 = get_XOVER_CMD(ctrl->rankmap[channel]);
- reg32 |= ((pi_coding_ctrl[0] & 0x3f) << 6) | ((pi_coding_ctrl[0] & 0x40) << 9);
+ reg32 |= (pi_coding_ctrl[0] & 0x3f) << 6;
+ reg32 |= (pi_coding_ctrl[0] & 0x40) << 9;
reg32 |= (pi_coding_ctrl[1] & 0x7f) << 18;
reg32 |= (full_shift & 0x3f) | ((full_shift & 0x40) << 6);
MCHBAR32(GDCRCMDPICODING_ch(channel)) = reg32;
- /* enable CLK XOVER */
+ /* Enable CLK XOVER */
reg_pi_code = get_XOVER_CLK(ctrl->rankmap[channel]);
reg_logic_delay = 0;
FOR_ALL_POPULATED_RANKS {
- int shift =
- ctrl->timings[channel][slotrank].pi_coding + full_shift;
+ int shift = ctrl->timings[channel][slotrank].pi_coding + full_shift;
int offset_pi_code;
if (shift < 0)
shift = 0;
+
offset_pi_code = ctrl->pi_code_offset + shift;
- /* set CLK phase shift */
+
+ /* Set CLK phase shift */
reg_pi_code |= (offset_pi_code & 0x3f) << (6 * slotrank);
reg_logic_delay |= ((offset_pi_code >> 6) & 1) << slotrank;
}
@@ -1112,11 +962,10 @@ void program_timings(ramctr_timing *ctrl, int channel)
reg_roundtrip_latency = 0;
FOR_ALL_POPULATED_RANKS {
- int post_timA_min_high = 7, post_timA_max_high = 0;
- int pre_timA_min_high = 7, pre_timA_max_high = 0;
+ int post_timA_min_high = 7, pre_timA_min_high = 7;
+ int post_timA_max_high = 0, pre_timA_max_high = 0;
int shift_402x = 0;
- int shift =
- ctrl->timings[channel][slotrank].pi_coding + full_shift;
+ int shift = ctrl->timings[channel][slotrank].pi_coding + full_shift;
if (shift < 0)
shift = 0;
@@ -1139,6 +988,7 @@ void program_timings(ramctr_timing *ctrl, int channel)
if (pre_timA_max_high - pre_timA_min_high <
post_timA_max_high - post_timA_min_high)
shift_402x = +1;
+
else if (pre_timA_max_high - pre_timA_min_high >
post_timA_max_high - post_timA_min_high)
shift_402x = -1;
@@ -1146,6 +996,7 @@ void program_timings(ramctr_timing *ctrl, int channel)
reg_io_latency |=
(ctrl->timings[channel][slotrank].io_latency + shift_402x -
post_timA_min_high) << (4 * slotrank);
+
reg_roundtrip_latency |=
(ctrl->timings[channel][slotrank].roundtrip_latency +
shift_402x) << (8 * slotrank);
@@ -1187,45 +1038,45 @@ static void test_timA(ramctr_timing *ctrl, int channel, int slotrank)
wait_for_iosav(channel);
/* DRAM command MRS
- * write MR3 MPR enable
- * in this mode only RD and RDA are allowed
- * all reads return a predefined pattern */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = (0xc01 | (ctrl->tMOD << 16));
+ write MR3 MPR enable
+ in this mode only RD and RDA are allowed
+ all reads return a predefined pattern */
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = (0xc01 | (ctrl->tMOD << 16));
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x360004;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x4040c01;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4040c01;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24);
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x100f | ((ctrl->CAS + 36) << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x100f | ((ctrl->CAS + 36) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0;
/* DRAM command MRS
- * write MR3 MPR disable */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16);
+ write MR3 MPR disable */
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x360000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
}
-static int does_lane_work(ramctr_timing *ctrl, int channel, int slotrank,
- int lane)
+static int does_lane_work(ramctr_timing *ctrl, int channel, int slotrank, int lane)
{
u32 timA = ctrl->timings[channel][slotrank].lanes[lane].timA;
- return ((MCHBAR32(lane_base[lane] + GDCRTRAININGRESULT(channel, (timA / 32) & 1)) >>
- (timA % 32)) & 1);
+
+ return (MCHBAR32(lane_base[lane] +
+ GDCRTRAININGRESULT(channel, (timA / 32) & 1)) >> (timA % 32)) & 1;
}
struct run {
@@ -1253,24 +1104,23 @@ static struct run get_longest_zero_run(int *seq, int sz)
}
if (bl == 0) {
ret.middle = sz / 2;
- ret.start = 0;
- ret.end = sz;
+ ret.start = 0;
+ ret.end = sz;
ret.length = sz;
- ret.all = 1;
+ ret.all = 1;
return ret;
}
- ret.start = bs % sz;
- ret.end = (bs + bl - 1) % sz;
+ ret.start = bs % sz;
+ ret.end = (bs + bl - 1) % sz;
ret.middle = (bs + (bl - 1) / 2) % sz;
ret.length = bl;
- ret.all = 0;
+ ret.all = 0;
return ret;
}
-static void discover_timA_coarse(ramctr_timing *ctrl, int channel,
- int slotrank, int *upperA)
+static void discover_timA_coarse(ramctr_timing *ctrl, int channel, int slotrank, int *upperA)
{
int timA;
int statistics[NUM_LANES][128];
@@ -1285,8 +1135,7 @@ static void discover_timA_coarse(ramctr_timing *ctrl, int channel,
test_timA(ctrl, channel, slotrank);
FOR_ALL_LANES {
- statistics[lane][timA] =
- !does_lane_work(ctrl, channel, slotrank, lane);
+ statistics[lane][timA] = !does_lane_work(ctrl, channel, slotrank, lane);
}
}
FOR_ALL_LANES {
@@ -1295,13 +1144,13 @@ static void discover_timA_coarse(ramctr_timing *ctrl, int channel,
upperA[lane] = rn.end;
if (upperA[lane] < rn.middle)
upperA[lane] += 128;
+
printram("timA: %d, %d, %d: 0x%02x-0x%02x-0x%02x\n",
channel, slotrank, lane, rn.start, rn.middle, rn.end);
}
}
-static void discover_timA_fine(ramctr_timing *ctrl, int channel, int slotrank,
- int *upperA)
+static void discover_timA_fine(ramctr_timing *ctrl, int channel, int slotrank, int *upperA)
{
int timA_delta;
int statistics[NUM_LANES][51];
@@ -1310,16 +1159,18 @@ static void discover_timA_fine(ramctr_timing *ctrl, int channel, int slotrank,
memset(statistics, 0, sizeof(statistics));
for (timA_delta = -25; timA_delta <= 25; timA_delta++) {
- FOR_ALL_LANES ctrl->timings[channel][slotrank].lanes[lane].
- timA = upperA[lane] + timA_delta + 0x40;
+
+ FOR_ALL_LANES {
+ ctrl->timings[channel][slotrank].lanes[lane].timA
+ = upperA[lane] + timA_delta + 0x40;
+ }
program_timings(ctrl, channel);
for (i = 0; i < 100; i++) {
test_timA(ctrl, channel, slotrank);
FOR_ALL_LANES {
statistics[lane][timA_delta + 25] +=
- does_lane_work(ctrl, channel, slotrank,
- lane);
+ does_lane_work(ctrl, channel, slotrank, lane);
}
}
}
@@ -1329,18 +1180,19 @@ static void discover_timA_fine(ramctr_timing *ctrl, int channel, int slotrank,
for (last_zero = -25; last_zero <= 25; last_zero++)
if (statistics[lane][last_zero + 25])
break;
+
last_zero--;
for (first_all = -25; first_all <= 25; first_all++)
if (statistics[lane][first_all + 25] == 100)
break;
- printram("lane %d: %d, %d\n", lane, last_zero,
- first_all);
+ printram("lane %d: %d, %d\n", lane, last_zero, first_all);
ctrl->timings[channel][slotrank].lanes[lane].timA =
- (last_zero + first_all) / 2 + upperA[lane];
+ (last_zero + first_all) / 2 + upperA[lane];
+
printram("Aval: %d, %d, %d: %x\n", channel, slotrank,
- lane, ctrl->timings[channel][slotrank].lanes[lane].timA);
+ lane, ctrl->timings[channel][slotrank].lanes[lane].timA);
}
}
@@ -1348,13 +1200,16 @@ static int discover_402x(ramctr_timing *ctrl, int channel, int slotrank, int *up
{
int works[NUM_LANES];
int lane;
+
while (1) {
int all_works = 1, some_works = 0;
+
program_timings(ctrl, channel);
test_timA(ctrl, channel, slotrank);
+
FOR_ALL_LANES {
- works[lane] =
- !does_lane_work(ctrl, channel, slotrank, lane);
+ works[lane] = !does_lane_work(ctrl, channel, slotrank, lane);
+
if (works[lane])
some_works = 1;
else
@@ -1362,6 +1217,7 @@ static int discover_402x(ramctr_timing *ctrl, int channel, int slotrank, int *up
}
if (all_works)
return 0;
+
if (!some_works) {
if (ctrl->timings[channel][slotrank].roundtrip_latency < 2) {
printk(BIOS_EMERG, "402x discovery failed (1): %d, %d\n",
@@ -1374,6 +1230,7 @@ static int discover_402x(ramctr_timing *ctrl, int channel, int slotrank, int *up
}
ctrl->timings[channel][slotrank].io_latency += 2;
printram("4028 += 2;\n");
+
if (ctrl->timings[channel][slotrank].io_latency >= 0x10) {
printk(BIOS_EMERG, "402x discovery failed (2): %d, %d\n",
channel, slotrank);
@@ -1417,15 +1274,17 @@ static void post_timA_change(ramctr_timing *ctrl, int channel, int slotrank,
struct timA_minmax post;
int shift_402x = 0;
- /* Get changed maxima. */
+ /* Get changed maxima */
pre_timA_change(ctrl, channel, slotrank, &post);
if (mnmx->timA_max_high - mnmx->timA_min_high <
post.timA_max_high - post.timA_min_high)
shift_402x = +1;
+
else if (mnmx->timA_max_high - mnmx->timA_min_high >
post.timA_max_high - post.timA_min_high)
shift_402x = -1;
+
else
shift_402x = 0;
@@ -1435,17 +1294,21 @@ static void post_timA_change(ramctr_timing *ctrl, int channel, int slotrank,
printram("4028 += %d;\n", shift_402x);
}
-/* Compensate the skew between DQS and DQs.
+/*
+ * Compensate the skew between DQS and DQs.
+ *
* To ease PCB design, a small skew between Data Strobe signals and Data Signals is allowed.
* The controller has to measure and compensate this skew for every byte-lane. By delaying
- * either all DQs signals or DQS signal, a full phase shift can be introduced. It is assumed
+ * either all DQ signals or DQS signal, a full phase shift can be introduced. It is assumed
* that one byte-lane's DQs signals have the same routing delay.
*
* To measure the actual skew, the DRAM is placed in "read leveling" mode. In read leveling
* mode the DRAM-chip outputs an alternating periodic pattern. The memory controller iterates
* over all possible values to do a full phase shift and issues read commands. With DQS and
- * DQs in phase the data read is expected to alternate on every byte:
+ * DQ in phase the data being read is expected to alternate on every byte:
+ *
* 0xFF 0x00 0xFF ...
+ *
* Once the controller has detected this pattern a bit in the result register is set for the
* current phase shift.
*/
@@ -1462,12 +1325,12 @@ int read_training(ramctr_timing *ctrl)
wait_for_iosav(channel);
/* DRAM command PREA */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f002;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f002;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60400;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1);
MCHBAR32(GDCRTRAININGMOD) = (slotrank << 2) | 0x8001;
@@ -1519,7 +1382,8 @@ int read_training(ramctr_timing *ctrl)
pre_timA_change(ctrl, channel, slotrank, &mnmx);
FOR_ALL_LANES {
- ctrl->timings[channel][slotrank].lanes[lane].timA -= mnmx.timA_min_high * 0x40;
+ ctrl->timings[channel][slotrank].lanes[lane].timA -=
+ mnmx.timA_min_high * 0x40;
}
ctrl->timings[channel][slotrank].io_latency -= mnmx.timA_min_high;
printram("4028 -= %d;\n", mnmx.timA_min_high);
@@ -1532,8 +1396,7 @@ int read_training(ramctr_timing *ctrl)
printram("final results:\n");
FOR_ALL_LANES
- printram("Aval: %d, %d, %d: %x\n", channel, slotrank,
- lane,
+ printram("Aval: %d, %d, %d: %x\n", channel, slotrank, lane,
ctrl->timings[channel][slotrank].lanes[lane].timA);
MCHBAR32(GDCRTRAININGMOD) = 0;
@@ -1562,65 +1425,63 @@ static void test_timC(ramctr_timing *ctrl, int channel, int slotrank)
wait_for_iosav(channel);
/* DRAM command ACT */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f006;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) =
- (MAX((ctrl->tFAW >> 2) + 1, ctrl->tRRD) << 10)
- | 4 | (ctrl->tRCD << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f006;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) =
+ (MAX((ctrl->tFAW >> 2) + 1, ctrl->tRRD) << 10) | 4 | (ctrl->tRCD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | (6 << 16);
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x244;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x244;
/* DRAM command NOP */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f207;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x8041001;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f207;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x8041001;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 8;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x3e0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x3e0;
/* DRAM command WR */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f201;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x80411f4;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f201;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x80411f4;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = slotrank << 24;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x242;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x242;
/* DRAM command NOP */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f207;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) =
- 0x8000c01 | ((ctrl->CWL + ctrl->tWTR + 5) << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f207;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) =
+ 0x08000c01 | ((ctrl->CWL + ctrl->tWTR + 5) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 8;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0x3e0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x3e0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
/* DRAM command PREA */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f002;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f002;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60400;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x240;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x240;
/* DRAM command ACT */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f006;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) =
- (MAX(ctrl->tRRD, (ctrl->tFAW >> 2) + 1) << 10)
- | 8 | (ctrl->CAS << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f006;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) =
+ (MAX(ctrl->tRRD, (ctrl->tFAW >> 2) + 1) << 10) | 8 | (ctrl->CAS << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x244;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x244;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) =
0x40011f4 | (MAX(ctrl->tRTP, 8) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24);
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x242;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x242;
/* DRAM command PREA */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f002;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = 0xc01 | (ctrl->tRP << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f002;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tRP << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x60400;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0x240;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x240;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
@@ -1634,30 +1495,32 @@ static void timC_threshold_process(int *data, const int count)
for (i = 1; i < count; i++) {
if (min > data[i])
min = data[i];
+
if (max < data[i])
max = data[i];
}
- int threshold = min/2 + max/2;
+ int threshold = min / 2 + max / 2;
for (i = 0; i < count; i++)
data[i] = data[i] > threshold;
+
printram("threshold=%d min=%d max=%d\n", threshold, min, max);
}
static int discover_timC(ramctr_timing *ctrl, int channel, int slotrank)
{
int timC;
- int statistics[NUM_LANES][MAX_TIMC + 1];
+ int stats[NUM_LANES][MAX_TIMC + 1];
int lane;
wait_for_iosav(channel);
/* DRAM command PREA */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f002;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f002;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60400;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x240;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x240;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1);
for (timC = 0; timC <= MAX_TIMC; timC++) {
@@ -1667,24 +1530,22 @@ static int discover_timC(ramctr_timing *ctrl, int channel, int slotrank)
test_timC(ctrl, channel, slotrank);
FOR_ALL_LANES {
- statistics[lane][timC] =
- MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane));
+ stats[lane][timC] = MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane));
}
}
FOR_ALL_LANES {
- struct run rn = get_longest_zero_run(
- statistics[lane], ARRAY_SIZE(statistics[lane]));
+ struct run rn = get_longest_zero_run(stats[lane], ARRAY_SIZE(stats[lane]));
+
if (rn.all || rn.length < 8) {
printk(BIOS_EMERG, "timC discovery failed: %d, %d, %d\n",
channel, slotrank, lane);
- /* With command training not happend yet, the lane can
- * be erroneous. Take the avarage as reference and try
- * again to find a run.
+ /*
+ * With command training not being done yet, the lane can be erroneous.
+ * Take the average as reference and try again to find a run.
*/
- timC_threshold_process(statistics[lane],
- ARRAY_SIZE(statistics[lane]));
- rn = get_longest_zero_run(statistics[lane],
- ARRAY_SIZE(statistics[lane]));
+ timC_threshold_process(stats[lane], ARRAY_SIZE(stats[lane]));
+ rn = get_longest_zero_run(stats[lane], ARRAY_SIZE(stats[lane]));
+
if (rn.all || rn.length < 8) {
printk(BIOS_EMERG, "timC recovery failed\n");
return MAKE_ERR;
@@ -1700,8 +1561,10 @@ static int discover_timC(ramctr_timing *ctrl, int channel, int slotrank)
static int get_precedening_channels(ramctr_timing *ctrl, int target_channel)
{
int channel, ret = 0;
+
FOR_ALL_POPULATED_CHANNELS if (channel < target_channel)
ret++;
+
return ret;
}
@@ -1709,8 +1572,10 @@ static void fill_pattern0(ramctr_timing *ctrl, int channel, u32 a, u32 b)
{
unsigned int j;
unsigned int channel_offset = get_precedening_channels(ctrl, channel) * 0x40;
+
for (j = 0; j < 16; j++)
write32((void *)(0x04000000 + channel_offset + 4 * j), j & 2 ? b : a);
+
sfence();
}
@@ -1727,10 +1592,13 @@ static void fill_pattern1(ramctr_timing *ctrl, int channel)
unsigned int j;
unsigned int channel_offset = get_precedening_channels(ctrl, channel) * 0x40;
unsigned int channel_step = 0x40 * num_of_channels(ctrl);
+
for (j = 0; j < 16; j++)
write32((void *)(0x04000000 + channel_offset + j * 4), 0xffffffff);
+
for (j = 0; j < 16; j++)
write32((void *)(0x04000000 + channel_offset + channel_step + j * 4), 0);
+
sfence();
}
@@ -1750,40 +1618,40 @@ static void precharge(ramctr_timing *ctrl)
wait_for_iosav(channel);
/* DRAM command MRS
- * write MR3 MPR enable
- * in this mode only RD and RDA are allowed
- * all reads return a predefined pattern */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) =
+ write MR3 MPR enable
+ in this mode only RD and RDA are allowed
+ all reads return a predefined pattern */
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) =
0xc01 | (ctrl->tMOD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) =
(slotrank << 24) | 0x360004;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x4041003;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4041003;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) =
0x1001 | ((ctrl->CAS + 8) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) =
(slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0;
/* DRAM command MRS
* write MR3 MPR disable */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) =
0xc01 | (ctrl->tMOD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) =
(slotrank << 24) | 0x360000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
@@ -1802,37 +1670,37 @@ static void precharge(ramctr_timing *ctrl)
* write MR3 MPR enable
* in this mode only RD and RDA are allowed
* all reads return a predefined pattern */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) =
0xc01 | (ctrl->tMOD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) =
(slotrank << 24) | 0x360004;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x4041003;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4041003;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) =
0x1001 | ((ctrl->CAS + 8) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) =
(slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0;
/* DRAM command MRS
* write MR3 MPR disable */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) =
0xc01 | (ctrl->tMOD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) =
(slotrank << 24) | 0x360000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
@@ -1847,19 +1715,19 @@ static void test_timB(ramctr_timing *ctrl, int channel, int slotrank)
wait_for_iosav(channel);
/* DRAM command NOP */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f207;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f207;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) =
0x8000c01 | ((ctrl->CWL + ctrl->tWLO) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = 8 | (slotrank << 24);
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0;
/* DRAM command NOP */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f107;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x4000c01 | ((ctrl->CAS + 38) << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f107;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4000c01 | ((ctrl->CAS + 38) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 4;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(2);
wait_for_iosav(channel);
@@ -1892,23 +1760,25 @@ static int discover_timB(ramctr_timing *ctrl, int channel, int slotrank)
}
FOR_ALL_LANES {
struct run rn = get_longest_zero_run(statistics[lane], 128);
- /* timC is a direct function of timB's 6 LSBs.
- * Some tests increments the value of timB by a small value,
- * which might cause the 6bit value to overflow, if it's close
- * to 0x3F. Increment the value by a small offset if it's likely
- * to overflow, to make sure it won't overflow while running
- * tests and bricks the system due to a non matching timC.
+ /*
+ * timC is a direct function of timB's 6 LSBs. Some tests increments the value
+ * of timB by a small value, which might cause the 6-bit value to overflow if
+ * it's close to 0x3f. Increment the value by a small offset if it's likely
+ * to overflow, to make sure it won't overflow while running tests and bricks
+ * the system due to a non matching timC.
*
- * TODO: find out why some tests (edge write discovery)
- * increment timB. */
- if ((rn.start & 0x3F) == 0x3E)
+ * TODO: find out why some tests (edge write discovery) increment timB.
+ */
+ if ((rn.start & 0x3f) == 0x3e)
rn.start += 2;
- else if ((rn.start & 0x3F) == 0x3F)
+ else if ((rn.start & 0x3f) == 0x3f)
rn.start += 1;
+
ctrl->timings[channel][slotrank].lanes[lane].timB = rn.start;
if (rn.all) {
printk(BIOS_EMERG, "timB discovery failed: %d, %d, %d\n",
channel, slotrank, lane);
+
return MAKE_ERR;
}
printram("timB: %d, %d, %d: 0x%02x-0x%02x-0x%02x\n",
@@ -1954,56 +1824,56 @@ static void adjust_high_timB(ramctr_timing *ctrl)
wait_for_iosav(channel);
/* DRAM command ACT */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f006;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0xc01 | (ctrl->tRCD << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f006;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tRCD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0;
/* DRAM command NOP */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f207;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x8040c01;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f207;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x8040c01;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 0x8;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x3e0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x3e0;
/* DRAM command WR */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f201;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x8041003;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f201;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x8041003;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24);
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x3e2;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x3e2;
/* DRAM command NOP */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f207;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f207;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) =
0x8000c01 | ((ctrl->CWL + ctrl->tWTR + 5) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x8;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0x3e0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x3e0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
/* DRAM command PREA */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f002;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0xc01 | ((ctrl->tRP) << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f002;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | ((ctrl->tRP) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60400;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x240;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x240;
/* DRAM command ACT */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f006;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0xc01 | ((ctrl->tRCD) << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f006;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0xc01 | ((ctrl->tRCD) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x3f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x4000c01 | ((ctrl->tRP +
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x3f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x4000c01 | ((ctrl->tRP +
ctrl->timings[channel][slotrank].roundtrip_latency +
ctrl->timings[channel][slotrank].io_latency) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60008;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(3);
wait_for_iosav(channel);
@@ -2033,28 +1903,28 @@ static void write_op(ramctr_timing *ctrl, int channel)
slotrank = !(ctrl->rankmap[channel] & 1) ? 2 : 0;
/* DRAM command ACT */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f003;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x41001;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x41001;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x3e0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1);
wait_for_iosav(channel);
}
-/* Compensate the skew between CMD/ADDR/CLK and DQ/DQS lanes.
- * DDR3 adopted the fly-by topology. The data and strobes signals reach
- * the chips at different times with respect to command, address and
- * clock signals.
- * By delaying either all DQ/DQs or all CMD/ADDR/CLK signals, a full phase
- * shift can be introduced.
- * It is assumed that the CLK/ADDR/CMD signals have the same routing delay.
+/*
+ * Compensate the skew between CMD/ADDR/CLK and DQ/DQS lanes.
+ *
+ * Since DDR3 uses a fly-by topology, the data and strobes signals reach the chips at different
+ * times with respect to command, address and clock signals. By delaying either all DQ/DQS or
+ * all CMD/ADDR/CLK signals, a full phase shift can be introduced. It is assumed that the
+ * CLK/ADDR/CMD signals have the same routing delay.
*
- * To find the required phase shift the DRAM is placed in "write leveling" mode.
- * In this mode the DRAM-chip samples the CLK on every DQS edge and feeds back the
- * sampled value on the data lanes (DQs).
+ * To find the required phase shift the DRAM is placed in "write leveling" mode. In this mode,
+ * the DRAM-chip samples the CLK on every DQS edge and feeds back the sampled value on the data
+ * lanes (DQ).
*/
int write_training(ramctr_timing *ctrl)
{
@@ -2069,42 +1939,40 @@ int write_training(ramctr_timing *ctrl)
MCHBAR32_OR(SCHED_CBIT_ch(channel), 0x200000);
}
- /* refresh disable */
+ /* Refresh disable */
MCHBAR32_AND(MC_INIT_STATE_G, ~8);
FOR_ALL_POPULATED_CHANNELS {
write_op(ctrl, channel);
}
- /* enable write leveling on all ranks
- * disable all DQ outputs
- * only NOP is allowed in this mode */
- FOR_ALL_CHANNELS
- FOR_ALL_POPULATED_RANKS
- write_mrreg(ctrl, channel, slotrank, 1,
+ /* Enable write leveling on all ranks
+ Disable all DQ outputs
+ Only NOP is allowed in this mode */
+ FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS
+ write_mrreg(ctrl, channel, slotrank, 1,
make_mr1(ctrl, slotrank, channel) | 0x1080);
MCHBAR32(GDCRTRAININGMOD) = 0x108052;
toggle_io_reset();
- /* set any valid value for timB, it gets corrected later */
+ /* Set any valid value for timB, it gets corrected later */
FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS {
err = discover_timB(ctrl, channel, slotrank);
if (err)
return err;
}
- /* disable write leveling on all ranks */
+ /* Disable write leveling on all ranks */
FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS
- write_mrreg(ctrl, channel,
- slotrank, 1, make_mr1(ctrl, slotrank, channel));
+ write_mrreg(ctrl, channel, slotrank, 1, make_mr1(ctrl, slotrank, channel));
MCHBAR32(GDCRTRAININGMOD) = 0;
FOR_ALL_POPULATED_CHANNELS
wait_for_iosav(channel);
- /* refresh enable */
+ /* Refresh enable */
MCHBAR32_OR(MC_INIT_STATE_G, 8);
FOR_ALL_POPULATED_CHANNELS {
@@ -2113,12 +1981,12 @@ int write_training(ramctr_timing *ctrl)
wait_for_iosav(channel);
/* DRAM command ZQCS */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f003;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x659001;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x659001;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x3e0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1);
wait_for_iosav(channel);
@@ -2182,37 +2050,37 @@ static int test_320c(ramctr_timing *ctrl, int channel, int slotrank)
wait_for_iosav(channel);
/* DRAM command ACT */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f006;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f006;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) =
((MAX(ctrl->tRRD, (ctrl->tFAW >> 2) + 1)) << 10)
| 8 | (ctrl->tRCD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) =
(slotrank << 24) | ctr | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x244;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x244;
/* DRAM command WR */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f201;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f201;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) =
0x8001020 | ((ctrl->CWL + ctrl->tWTR + 8) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24);
MCHBAR32(IOSAV_n_ADDRESS_LFSR_ch(channel, 1)) = 0x389abcd;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x20e42;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x20e42;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) =
0x4001020 | (MAX(ctrl->tRTP, 8) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24);
MCHBAR32(IOSAV_n_ADDRESS_LFSR_ch(channel, 2)) = 0x389abcd;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x20e42;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x20e42;
/* DRAM command PRE */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f002;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = 0xf1001;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f002;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xf1001;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x60400;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0x240;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x240;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
@@ -2237,8 +2105,8 @@ static int test_320c(ramctr_timing *ctrl, int channel, int slotrank)
static void fill_pattern5(ramctr_timing *ctrl, int channel, int patno)
{
unsigned int i, j;
- unsigned int channel_offset = get_precedening_channels(ctrl, channel) * 0x40;
- unsigned int channel_step = 0x40 * num_of_channels(ctrl);
+ unsigned int offset = get_precedening_channels(ctrl, channel) * 0x40;
+ unsigned int step = 0x40 * num_of_channels(ctrl);
if (patno) {
u8 base8 = 0x80 >> ((patno - 1) % 8);
@@ -2246,18 +2114,19 @@ static void fill_pattern5(ramctr_timing *ctrl, int channel, int patno)
for (i = 0; i < 32; i++) {
for (j = 0; j < 16; j++) {
u32 val = use_base[patno - 1][i] & (1 << (j / 2)) ? base : 0;
+
if (invert[patno - 1][i] & (1 << (j / 2)))
val = ~val;
- write32((void *)(0x04000000 + channel_offset + i * channel_step +
- j * 4), val);
+
+ write32((void *)((1 << 26) + offset + i * step + j * 4), val);
}
}
-
} else {
- for (i = 0; i < sizeof(pattern) / sizeof(pattern[0]); i++) {
- for (j = 0; j < 16; j++)
- write32((void *)(0x04000000 + channel_offset + i * channel_step +
- j * 4), pattern[i][j]);
+ for (i = 0; i < ARRAY_SIZE(pattern); i++) {
+ for (j = 0; j < 16; j++) {
+ const u32 val = pattern[i][j];
+ write32((void *)((1 << 26) + offset + i * step + j * 4), val);
+ }
}
sfence();
}
@@ -2270,16 +2139,16 @@ static void reprogram_320c(ramctr_timing *ctrl)
FOR_ALL_POPULATED_CHANNELS {
wait_for_iosav(channel);
- /* choose an existing rank. */
+ /* Choose an existing rank */
slotrank = !(ctrl->rankmap[channel] & 1) ? 2 : 0;
/* DRAM command ZQCS */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f003;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x41001;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x41001;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x3e0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1);
wait_for_iosav(channel);
@@ -2295,20 +2164,21 @@ static void reprogram_320c(ramctr_timing *ctrl)
slotrank = !(ctrl->rankmap[channel] & 1) ? 2 : 0;
/* DRAM command ZQCS */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f003;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x41001;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x41001;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x3e0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1);
wait_for_iosav(channel);
}
- /* jedec reset */
+ /* JEDEC reset */
dram_jedecreset(ctrl);
- /* mrs commands. */
+
+ /* MRS commands */
dram_mrscommands(ctrl);
toggle_io_reset();
@@ -2333,12 +2203,12 @@ static int try_cmd_stretch(ramctr_timing *ctrl, int channel, int cmd_stretch)
ctrl->cmd_stretch[channel] = cmd_stretch;
MCHBAR32(TC_RAP_ch(channel)) =
- ctrl->tRRD
- | (ctrl->tRTP << 4)
- | (ctrl->tCKE << 8)
+ (ctrl->tRRD << 0)
+ | (ctrl->tRTP << 4)
+ | (ctrl->tCKE << 8)
| (ctrl->tWTR << 12)
| (ctrl->tFAW << 16)
- | (ctrl->tWR << 24)
+ | (ctrl->tWR << 24)
| (ctrl->cmd_stretch[channel] << 30);
if (ctrl->cmd_stretch[channel] == 2)
@@ -2361,11 +2231,12 @@ static int try_cmd_stretch(ramctr_timing *ctrl, int channel, int cmd_stretch)
}
}
FOR_ALL_POPULATED_RANKS {
- struct run rn =
- get_longest_zero_run(stat[slotrank], 255);
+ struct run rn = get_longest_zero_run(stat[slotrank], 255);
+
ctrl->timings[channel][slotrank].pi_coding = rn.middle - 127;
printram("cmd_stretch: %d, %d: 0x%02x-0x%02x-0x%02x\n",
channel, slotrank, rn.start, rn.middle, rn.end);
+
if (rn.all || rn.length < MIN_C320C_LEN) {
FOR_ALL_POPULATED_RANKS {
ctrl->timings[channel][slotrank] =
@@ -2378,9 +2249,10 @@ static int try_cmd_stretch(ramctr_timing *ctrl, int channel, int cmd_stretch)
return 0;
}
-/* Adjust CMD phase shift and try multiple command rates.
- * A command rate of 2T doubles the time needed for address and
- * command decode. */
+/*
+ * Adjust CMD phase shift and try multiple command rates.
+ * A command rate of 2T doubles the time needed for address and command decode.
+ */
int command_training(ramctr_timing *ctrl)
{
int channel;
@@ -2395,12 +2267,12 @@ int command_training(ramctr_timing *ctrl)
/*
* Dual DIMM per channel:
- * Issue: While c320c discovery seems to succeed raminit
- * will fail in write training.
- * Workaround: Skip 1T in dual DIMM mode, that's only
- * supported by a few DIMMs.
- * Only try 1T mode for XMP DIMMs that request it in dual DIMM
- * mode.
+ * Issue:
+ * While c320c discovery seems to succeed raminit will fail in write training.
+ *
+ * Workaround:
+ * Skip 1T in dual DIMM mode, that's only supported by a few DIMMs.
+ * Only try 1T mode for XMP DIMMs that request it in dual DIMM mode.
*
* Single DIMM per channel:
* Try command rate 1T and 2T
@@ -2432,16 +2304,15 @@ int command_training(ramctr_timing *ctrl)
return 0;
}
-
static int discover_edges_real(ramctr_timing *ctrl, int channel, int slotrank, int *edges)
{
int edge;
- int statistics[NUM_LANES][MAX_EDGE_TIMING + 1];
+ int stats[NUM_LANES][MAX_EDGE_TIMING + 1];
int lane;
for (edge = 0; edge <= MAX_EDGE_TIMING; edge++) {
FOR_ALL_LANES {
- ctrl->timings[channel][slotrank].lanes[lane].rising = edge;
+ ctrl->timings[channel][slotrank].lanes[lane].rising = edge;
ctrl->timings[channel][slotrank].lanes[lane].falling = edge;
}
program_timings(ctrl, channel);
@@ -2452,54 +2323,55 @@ static int discover_edges_real(ramctr_timing *ctrl, int channel, int slotrank, i
}
wait_for_iosav(channel);
+
/* DRAM command MRS
- * write MR3 MPR enable
- * in this mode only RD and RDA are allowed
- * all reads return a predefined pattern */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0xc01 | (ctrl->tMOD << 16);
+ write MR3 MPR enable
+ in this mode only RD and RDA are allowed
+ all reads return a predefined pattern */
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tMOD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x360004;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x40411f4;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x40411f4;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x1001 | ((ctrl->CAS + 8) << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x1001 | ((ctrl->CAS + 8) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0;
/* DRAM command MRS
- * MR3 disable MPR */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16);
+ MR3 disable MPR */
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x360000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
FOR_ALL_LANES {
- statistics[lane][edge] =
- MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane));
+ stats[lane][edge] = MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane));
}
}
+
FOR_ALL_LANES {
- struct run rn = get_longest_zero_run(statistics[lane], MAX_EDGE_TIMING + 1);
+ struct run rn = get_longest_zero_run(stats[lane], MAX_EDGE_TIMING + 1);
edges[lane] = rn.middle;
+
if (rn.all) {
- printk(BIOS_EMERG, "edge discovery failed: %d, %d, %d\n",
- channel, slotrank, lane);
+ printk(BIOS_EMERG, "edge discovery failed: %d, %d, %d\n", channel,
+ slotrank, lane);
return MAKE_ERR;
}
- printram("eval %d, %d, %d: %02x\n", channel, slotrank,
- lane, edges[lane]);
+ printram("eval %d, %d, %d: %02x\n", channel, slotrank, lane, edges[lane]);
}
return 0;
}
@@ -2537,41 +2409,41 @@ int discover_edges(ramctr_timing *ctrl)
wait_for_iosav(channel);
/* DRAM command MRS
- * MR3 enable MPR
- * write MR3 MPR enable
- * in this mode only RD and RDA are allowed
- * all reads return a predefined pattern */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) =
+ MR3 enable MPR
+ write MR3 MPR enable
+ in this mode only RD and RDA are allowed
+ all reads return a predefined pattern */
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) =
0xc01 | (ctrl->tMOD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) =
(slotrank << 24) | 0x360004;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x4041003;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4041003;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) =
0x1001 | ((ctrl->CAS + 8) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) =
(slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0;
/* DRAM command MRS
* MR3 disable MPR */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) =
0xc01 | (ctrl->tMOD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) =
(slotrank << 24) | 0x360000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
@@ -2581,7 +2453,7 @@ int discover_edges(ramctr_timing *ctrl)
FOR_ALL_POPULATED_RANKS FOR_ALL_LANES {
ctrl->timings[channel][slotrank].lanes[lane].falling = 48;
- ctrl->timings[channel][slotrank].lanes[lane].rising = 48;
+ ctrl->timings[channel][slotrank].lanes[lane].rising = 48;
}
program_timings(ctrl, channel);
@@ -2590,42 +2462,42 @@ int discover_edges(ramctr_timing *ctrl)
wait_for_iosav(channel);
/* DRAM command MRS
- * MR3 enable MPR
- * write MR3 MPR enable
- * in this mode only RD and RDA are allowed
- * all reads return a predefined pattern */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) =
+ MR3 enable MPR
+ write MR3 MPR enable
+ in this mode only RD and RDA are allowed
+ all reads return a predefined pattern */
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) =
0xc01 | (ctrl->tMOD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) =
(slotrank << 24) | 0x360004;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x4041003;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4041003;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) =
(slotrank << 24);
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) =
0x1001 | ((ctrl->CAS + 8) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) =
(slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0;
/* DRAM command MRS
* MR3 disable MPR */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f000;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) =
0xc01 | (ctrl->tMOD << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) =
(slotrank << 24) | 0x360000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
@@ -2682,12 +2554,11 @@ int discover_edges(ramctr_timing *ctrl)
return 0;
}
-static int discover_edges_write_real(ramctr_timing *ctrl, int channel,
- int slotrank, int *edges)
+static int discover_edges_write_real(ramctr_timing *ctrl, int channel, int slotrank, int *edges)
{
int edge;
- u32 raw_statistics[MAX_EDGE_TIMING + 1];
- int statistics[MAX_EDGE_TIMING + 1];
+ u32 raw_stats[MAX_EDGE_TIMING + 1];
+ int stats[MAX_EDGE_TIMING + 1];
const int reg3000b24[] = { 0, 0xc, 0x2c };
int lane, i;
int lower[NUM_LANES];
@@ -2701,12 +2572,13 @@ static int discover_edges_write_real(ramctr_timing *ctrl, int channel,
for (i = 0; i < 3; i++) {
MCHBAR32(GDCRTRAININGMOD_ch(channel)) = reg3000b24[i] << 24;
- printram("[%x] = 0x%08x\n",
- GDCRTRAININGMOD_ch(channel), reg3000b24[i] << 24);
+ printram("[%x] = 0x%08x\n", GDCRTRAININGMOD_ch(channel), reg3000b24[i] << 24);
+
for (pat = 0; pat < NUM_PATTERNS; pat++) {
fill_pattern5(ctrl, channel, pat);
MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x1f;
printram("using pattern %d\n", pat);
+
for (edge = 0; edge <= MAX_EDGE_TIMING; edge++) {
FOR_ALL_LANES {
ctrl->timings[channel][slotrank].lanes[lane].
@@ -2723,68 +2595,70 @@ static int discover_edges_write_real(ramctr_timing *ctrl, int channel,
wait_for_iosav(channel);
/* DRAM command ACT */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f006;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f006;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) =
0x4 | (ctrl->tRCD << 16) |
(MAX(ctrl->tRRD, (ctrl->tFAW >> 2) + 1) << 10);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) =
(slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x240;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x240;
/* DRAM command WR */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f201;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x8005020 |
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f201;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x8005020 |
((ctrl->tWTR + ctrl->CWL + 8) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) =
slotrank << 24;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x242;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x242;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) =
0x4005020 | (MAX(ctrl->tRTP, 8) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) =
slotrank << 24;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x242;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x242;
/* DRAM command PRE */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f002;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f002;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) =
0xc01 | (ctrl->tRP << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) =
(slotrank << 24) | 0x60400;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0;
- // execute command queue
- MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) =
- IOSAV_RUN_ONCE(4);
+ /* Execute command queue */
+ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
FOR_ALL_LANES {
MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane));
}
- raw_statistics[edge] = MCHBAR32(0x436c + channel * 0x400);
+ /* FIXME: This register only exists on Ivy Bridge */
+ raw_stats[edge] = MCHBAR32(0x436c + channel * 0x400);
}
+
FOR_ALL_LANES {
struct run rn;
for (edge = 0; edge <= MAX_EDGE_TIMING; edge++)
- statistics[edge] =
- ! !(raw_statistics[edge] & (1 << lane));
- rn = get_longest_zero_run(statistics,
- MAX_EDGE_TIMING + 1);
- printram("edges: %d, %d, %d: 0x%02x-0x%02x-0x%02x, 0x%02x-0x%02x\n",
- channel, slotrank, i, rn.start, rn.middle,
- rn.end, rn.start + ctrl->edge_offset[i],
+ stats[edge] = !!(raw_stats[edge] & (1 << lane));
+
+ rn = get_longest_zero_run(stats, MAX_EDGE_TIMING + 1);
+
+ printram("edges: %d, %d, %d: 0x%02x-0x%02x-0x%02x, "
+ "0x%02x-0x%02x\n", channel, slotrank, i, rn.start,
+ rn.middle, rn.end, rn.start + ctrl->edge_offset[i],
rn.end - ctrl->edge_offset[i]);
- lower[lane] =
- MAX(rn.start + ctrl->edge_offset[i], lower[lane]);
- upper[lane] =
- MIN(rn.end - ctrl->edge_offset[i], upper[lane]);
+
+ lower[lane] = MAX(rn.start + ctrl->edge_offset[i], lower[lane]);
+ upper[lane] = MIN(rn.end - ctrl->edge_offset[i], upper[lane]);
+
edges[lane] = (lower[lane] + upper[lane]) / 2;
if (rn.all || (lower[lane] > upper[lane])) {
- printk(BIOS_EMERG, "edge write discovery failed: %d, %d, %d\n",
- channel, slotrank, lane);
+ printk(BIOS_EMERG, "edge write discovery failed: "
+ "%d, %d, %d\n", channel, slotrank, lane);
+
return MAKE_ERR;
}
}
@@ -2799,17 +2673,19 @@ static int discover_edges_write_real(ramctr_timing *ctrl, int channel,
int discover_edges_write(ramctr_timing *ctrl)
{
int falling_edges[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES];
- int rising_edges[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES];
- int channel, slotrank, lane;
- int err;
+ int rising_edges[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES];
+ int channel, slotrank, lane, err;
- /* FIXME: under some conditions (older chipsets?) vendor BIOS sets both edges to the same value. */
+ /*
+ * FIXME: Under some conditions, vendor BIOS sets both edges to the same value. It will
+ * also use a single loop. It would seem that it is a debugging configuration.
+ */
MCHBAR32(IOSAV_DC_MASK) = 0x300;
printram("discover falling edges write:\n[%x] = %x\n", IOSAV_DC_MASK, 0x300);
FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS {
err = discover_edges_write_real(ctrl, channel, slotrank,
- falling_edges[channel][slotrank]);
+ falling_edges[channel][slotrank]);
if (err)
return err;
}
@@ -2819,7 +2695,7 @@ int discover_edges_write(ramctr_timing *ctrl)
FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS {
err = discover_edges_write_real(ctrl, channel, slotrank,
- rising_edges[channel][slotrank]);
+ rising_edges[channel][slotrank]);
if (err)
return err;
}
@@ -2828,9 +2704,10 @@ int discover_edges_write(ramctr_timing *ctrl)
FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES {
ctrl->timings[channel][slotrank].lanes[lane].falling =
- falling_edges[channel][slotrank][lane];
+ falling_edges[channel][slotrank][lane];
+
ctrl->timings[channel][slotrank].lanes[lane].rising =
- rising_edges[channel][slotrank][lane];
+ rising_edges[channel][slotrank][lane];
}
FOR_ALL_POPULATED_CHANNELS
@@ -2845,34 +2722,34 @@ int discover_edges_write(ramctr_timing *ctrl)
static void test_timC_write(ramctr_timing *ctrl, int channel, int slotrank)
{
wait_for_iosav(channel);
+
/* DRAM command ACT */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f006;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0001f006;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) =
(MAX((ctrl->tFAW >> 2) + 1, ctrl->tRRD) << 10) | (ctrl->tRCD << 16) | 4;
- MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) =
- (slotrank << 24) | 0x60000;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x244;
+ MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x0244;
/* DRAM command WR */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f201;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) =
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f201;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) =
0x80011e0 | ((ctrl->tWTR + ctrl->CWL + 8) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x242;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x242;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x40011e0 | (MAX(ctrl->tRTP, 8) << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x40011e0 | (MAX(ctrl->tRTP, 8) << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = slotrank << 24;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x242;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x242;
/* DRAM command PRE */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f002;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = 0x1001 | (ctrl->tRP << 16);
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f002;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0x1001 | (ctrl->tRP << 16);
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x60400;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
@@ -2880,7 +2757,7 @@ static void test_timC_write(ramctr_timing *ctrl, int channel, int slotrank)
int discover_timC_write(ramctr_timing *ctrl)
{
- const u8 rege3c_b24[3] = { 0, 0xf, 0x2f };
+ const u8 rege3c_b24[3] = { 0, 0x0f, 0x2f };
int i, pat;
int lower[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES];
@@ -2901,53 +2778,65 @@ int discover_timC_write(ramctr_timing *ctrl)
for (i = 0; i < 3; i++)
FOR_ALL_POPULATED_CHANNELS {
- MCHBAR32_AND_OR(GDCRCMDDEBUGMUXCFG_Cz_S(channel), ~0x3f000000,
- rege3c_b24[i] << 24);
+
+ /* FIXME: Setting the Write VREF must only be done on Ivy Bridge */
+ MCHBAR32_AND_OR(GDCRCMDDEBUGMUXCFG_Cz_S(channel),
+ ~0x3f000000, rege3c_b24[i] << 24);
+
udelay(2);
+
for (pat = 0; pat < NUM_PATTERNS; pat++) {
FOR_ALL_POPULATED_RANKS {
int timC;
- u32 raw_statistics[MAX_TIMC + 1];
- int statistics[MAX_TIMC + 1];
+ u32 raw_stats[MAX_TIMC + 1];
+ int stats[MAX_TIMC + 1];
/* Make sure rn.start < rn.end */
- statistics[MAX_TIMC] = 1;
+ stats[MAX_TIMC] = 1;
fill_pattern5(ctrl, channel, pat);
- MCHBAR32(IOSAV_DATA_CTL_ch(channel)) =
- 0x1f;
+ MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x1f;
+
for (timC = 0; timC < MAX_TIMC; timC++) {
- FOR_ALL_LANES
- ctrl->timings[channel][slotrank].lanes[lane].timC = timC;
+ FOR_ALL_LANES {
+ ctrl->timings[channel][slotrank]
+ .lanes[lane].timC = timC;
+ }
program_timings(ctrl, channel);
test_timC_write (ctrl, channel, slotrank);
- raw_statistics[timC] =
+ /* FIXME: Another IVB-only register! */
+ raw_stats[timC] =
MCHBAR32(0x436c + channel * 0x400);
}
FOR_ALL_LANES {
struct run rn;
- for (timC = 0; timC < MAX_TIMC; timC++)
- statistics[timC] =
- !!(raw_statistics[timC] &
- (1 << lane));
+ for (timC = 0; timC < MAX_TIMC; timC++) {
+ stats[timC] = !!(raw_stats[timC]
+ & (1 << lane));
+ }
- rn = get_longest_zero_run(statistics,
- MAX_TIMC + 1);
+ rn = get_longest_zero_run(stats, MAX_TIMC + 1);
if (rn.all) {
- printk(BIOS_EMERG, "timC write discovery failed: %d, %d, %d\n",
- channel, slotrank, lane);
+ printk(BIOS_EMERG,
+ "timC write discovery failed: "
+ "%d, %d, %d\n", channel,
+ slotrank, lane);
+
return MAKE_ERR;
}
- printram("timC: %d, %d, %d: 0x%02x-0x%02x-0x%02x, 0x%02x-0x%02x\n",
- channel, slotrank, i, rn.start,
- rn.middle, rn.end,
+ printram("timC: %d, %d, %d: "
+ "0x%02x-0x%02x-0x%02x, "
+ "0x%02x-0x%02x\n", channel, slotrank,
+ i, rn.start, rn.middle, rn.end,
rn.start + ctrl->timC_offset[i],
- rn.end - ctrl->timC_offset[i]);
+ rn.end - ctrl->timC_offset[i]);
+
lower[channel][slotrank][lane] =
MAX(rn.start + ctrl->timC_offset[i],
lower[channel][slotrank][lane]);
+
upper[channel][slotrank][lane] =
MIN(rn.end - ctrl->timC_offset[i],
upper[channel][slotrank][lane]);
@@ -2958,6 +2847,7 @@ int discover_timC_write(ramctr_timing *ctrl)
}
FOR_ALL_CHANNELS {
+ /* FIXME: Setting the Write VREF must only be done on Ivy Bridge */
MCHBAR32_AND(GDCRCMDDEBUGMUXCFG_Cz_S(channel), ~0x3f000000);
udelay(2);
}
@@ -2971,10 +2861,10 @@ int discover_timC_write(ramctr_timing *ctrl)
printram("CPB\n");
FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES {
- printram("timC %d, %d, %d: %x\n", channel,
- slotrank, lane,
+ printram("timC %d, %d, %d: %x\n", channel, slotrank, lane,
(lower[channel][slotrank][lane] +
upper[channel][slotrank][lane]) / 2);
+
ctrl->timings[channel][slotrank].lanes[lane].timC =
(lower[channel][slotrank][lane] +
upper[channel][slotrank][lane]) / 2;
@@ -3049,30 +2939,30 @@ int channel_test(ramctr_timing *ctrl)
wait_for_iosav(channel);
/* DRAM command ACT */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0001f006;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x0028a004;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0001f006;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x0028a004;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = 0x00060000 | (slotrank << 24);
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x00000244;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x00000244;
/* DRAM command WR */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x0001f201;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x08281064;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x0001f201;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x08281064;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x00000242;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x00000242;
/* DRAM command RD */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x0001f105;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x04281064;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x0001f105;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x04281064;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = slotrank << 24;
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x00000242;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x00000242;
/* DRAM command PRE */
- MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x0001f002;
- MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = 0x00280c01;
+ MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x0001f002;
+ MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0x00280c01;
MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = 0x00060400 | (slotrank << 24);
- MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0x00000240;
+ MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x00000240;
- // execute command queue
+ /* Execute command queue */
MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4);
wait_for_iosav(channel);
@@ -3090,29 +2980,27 @@ void set_scrambling_seed(ramctr_timing *ctrl)
{
int channel;
- /* FIXME: we hardcode seeds. Do we need to use some PRNG for them?
- I don't think so. */
+ /* FIXME: we hardcode seeds. Do we need to use some PRNG for them? I don't think so. */
static u32 seeds[NUM_CHANNELS][3] = {
{0x00009a36, 0xbafcfdcf, 0x46d1ab68},
{0x00028bfa, 0x53fe4b49, 0x19ed5483}
};
FOR_ALL_POPULATED_CHANNELS {
MCHBAR32(SCHED_CBIT_ch(channel)) &= ~0x10000000;
- MCHBAR32(SCRAMBLING_SEED_1_ch(channel)) = seeds[channel][0];
- MCHBAR32(SCRAMBLING_SEED_2_HIGH_ch(channel)) = seeds[channel][1];
- MCHBAR32(SCRAMBLING_SEED_2_LOW_ch(channel)) = seeds[channel][2];
+ MCHBAR32(SCRAMBLING_SEED_1_ch(channel)) = seeds[channel][0];
+ MCHBAR32(SCRAMBLING_SEED_2_HI_ch(channel)) = seeds[channel][1];
+ MCHBAR32(SCRAMBLING_SEED_2_LO_ch(channel)) = seeds[channel][2];
}
}
-void set_4f8c(void)
+void set_wmm_behavior(void)
{
- u32 cpu;
+ u32 cpu = cpu_get_cpuid();
- cpu = cpu_get_cpuid();
if (IS_SANDY_CPU(cpu) && (IS_SANDY_CPU_D0(cpu) || IS_SANDY_CPU_D1(cpu))) {
- MCHBAR32(SC_WDBWM) = 0x141D1519;
+ MCHBAR32(SC_WDBWM) = 0x141d1519;
} else {
- MCHBAR32(SC_WDBWM) = 0x551D1519;
+ MCHBAR32(SC_WDBWM) = 0x551d1519;
}
}
@@ -3121,7 +3009,7 @@ void prepare_training(ramctr_timing *ctrl)
int channel;
FOR_ALL_POPULATED_CHANNELS {
- // Always drive command bus
+ /* Always drive command bus */
MCHBAR32_OR(TC_RAP_ch(channel), 0x20000000);
}
@@ -3132,7 +3020,7 @@ void prepare_training(ramctr_timing *ctrl)
}
}
-void set_4008c(ramctr_timing *ctrl)
+void set_read_write_timings(ramctr_timing *ctrl)
{
int channel, slotrank;
@@ -3146,20 +3034,13 @@ void set_4008c(ramctr_timing *ctrl)
min_pi = MIN(ctrl->timings[channel][slotrank].pi_coding, min_pi);
}
- if (max_pi - min_pi > 51)
- b20 = 0;
- else
- b20 = ctrl->ref_card_offset[channel];
+ b20 = (max_pi - min_pi > 51) ? 0 : ctrl->ref_card_offset[channel];
- if (ctrl->pi_coding_threshold < max_pi - min_pi)
- b4_8_12 = 0x3330;
- else
- b4_8_12 = 0x2220;
+ b4_8_12 = (ctrl->pi_coding_threshold < max_pi - min_pi) ? 0x3330 : 0x2220;
dram_odt_stretch(ctrl, channel);
- MCHBAR32(TC_RWP_ch(channel)) =
- 0x0a000000 | (b20 << 20) |
+ MCHBAR32(TC_RWP_ch(channel)) = 0x0a000000 | (b20 << 20) |
((ctrl->ref_card_offset[channel] + 2) << 16) | b4_8_12;
}
}
@@ -3173,12 +3054,13 @@ void set_normal_operation(ramctr_timing *ctrl)
}
}
-static int encode_5d10(int ns)
+/* Encode the watermark latencies in a suitable format for graphics drivers consumption */
+static int encode_wm(int ns)
{
return (ns + 499) / 500;
}
-/* FIXME: values in this function should be hardware revision-dependent. */
+/* FIXME: values in this function should be hardware revision-dependent */
void final_registers(ramctr_timing *ctrl)
{
const size_t is_mobile = get_platform_type() == PLATFORM_MOBILE;
@@ -3188,17 +3070,17 @@ void final_registers(ramctr_timing *ctrl)
int t3_ns;
u32 r32;
- /* FIXME: This register only exists on Ivy Bridge. */
- MCHBAR32(WMM_READ_CONFIG) = 0x00000046;
+ /* FIXME: This register only exists on Ivy Bridge */
+ MCHBAR32(WMM_READ_CONFIG) = 0x46;
FOR_ALL_CHANNELS
- MCHBAR32_AND_OR(TC_OTHP_ch(channel), 0xFFFFCFFF, 0x1000);
+ MCHBAR32_AND_OR(TC_OTHP_ch(channel), 0xffffcfff, 0x1000);
if (is_mobile)
/* APD - DLL Off, 64 DCLKs until idle, decision per rank */
MCHBAR32(PM_PDWN_CONFIG) = 0x00000740;
else
- /* APD - PPD, 64 DCLKs until idle, decision per rank */
+ /* APD - PPD, 64 DCLKs until idle, decision per rank */
MCHBAR32(PM_PDWN_CONFIG) = 0x00000340;
FOR_ALL_CHANNELS
@@ -3209,75 +3091,76 @@ void final_registers(ramctr_timing *ctrl)
FOR_ALL_CHANNELS {
switch (ctrl->rankmap[channel]) {
- /* Unpopulated channel. */
+ /* Unpopulated channel */
case 0:
MCHBAR32(PM_CMD_PWR_ch(channel)) = 0;
break;
- /* Only single-ranked dimms. */
+ /* Only single-ranked dimms */
case 1:
case 4:
case 5:
- MCHBAR32(PM_CMD_PWR_ch(channel)) = 0x373131;
+ MCHBAR32(PM_CMD_PWR_ch(channel)) = 0x00373131;
break;
- /* Dual-ranked dimms present. */
+ /* Dual-ranked dimms present */
default:
- MCHBAR32(PM_CMD_PWR_ch(channel)) = 0x9b6ea1;
+ MCHBAR32(PM_CMD_PWR_ch(channel)) = 0x009b6ea1;
break;
}
}
MCHBAR32(MEM_TRML_ESTIMATION_CONFIG) = 0xca9171e5;
- MCHBAR32_AND_OR(MEM_TRML_THRESHOLDS_CONFIG, ~0xffffff, 0xe4d5d0);
+ MCHBAR32_AND_OR(MEM_TRML_THRESHOLDS_CONFIG, ~0x00ffffff, 0x00e4d5d0);
MCHBAR32_AND(MEM_TRML_INTERRUPT, ~0x1f);
FOR_ALL_CHANNELS
- MCHBAR32_AND_OR(TC_RFP_ch(channel), ~0x30000, 1 << 16);
+ MCHBAR32_AND_OR(TC_RFP_ch(channel), ~(3 << 16), 1 << 16);
MCHBAR32_OR(MC_INIT_STATE_G, 1);
MCHBAR32_OR(MC_INIT_STATE_G, 0x80);
MCHBAR32(BANDTIMERS_SNB) = 0xfa;
- /* Find a populated channel. */
+ /* Find a populated channel */
FOR_ALL_POPULATED_CHANNELS
break;
t1_cycles = (MCHBAR32(TC_ZQCAL_ch(channel)) >> 8) & 0xff;
r32 = MCHBAR32(PM_DLL_CONFIG);
- if (r32 & 0x20000)
+ if (r32 & (1 << 17))
t1_cycles += (r32 & 0xfff);
t1_cycles += MCHBAR32(TC_SRFTP_ch(channel)) & 0xfff;
t1_ns = t1_cycles * ctrl->tCK / 256 + 544;
- if (!(r32 & 0x20000))
+ if (!(r32 & (1 << 17)))
t1_ns += 500;
t2_ns = 10 * ((MCHBAR32(SAPMTIMERS) >> 8) & 0xfff);
if (MCHBAR32(SAPMCTL) & 8) {
- t3_ns = 10 * ((MCHBAR32(BANDTIMERS_IVB) >> 8) & 0xfff);
+ t3_ns = 10 * ((MCHBAR32(BANDTIMERS_IVB) >> 8) & 0xfff);
t3_ns += 10 * (MCHBAR32(SAPMTIMERS2_IVB) & 0xff);
} else {
t3_ns = 500;
}
- printk(BIOS_DEBUG, "t123: %d, %d, %d\n",
- t1_ns, t2_ns, t3_ns);
- MCHBAR32_AND_OR(0x5d10, 0xC0C0C0C0,
- ((encode_5d10(t1_ns) + encode_5d10(t2_ns)) << 16) |
- (encode_5d10(t1_ns) << 8) | ((encode_5d10(t3_ns) +
- encode_5d10(t2_ns) + encode_5d10(t1_ns)) << 24) | 0xc);
+
+ /* The graphics driver will use these watermark values */
+ printk(BIOS_DEBUG, "t123: %d, %d, %d\n", t1_ns, t2_ns, t3_ns);
+ MCHBAR32_AND_OR(SSKPD, 0xC0C0C0C0,
+ ((encode_wm(t1_ns) + encode_wm(t2_ns)) << 16) | (encode_wm(t1_ns) << 8) |
+ ((encode_wm(t3_ns) + encode_wm(t2_ns) + encode_wm(t1_ns)) << 24) | 0x0c);
}
void restore_timings(ramctr_timing *ctrl)
{
int channel, slotrank, lane;
- FOR_ALL_POPULATED_CHANNELS
- MCHBAR32(TC_RAP_ch(channel)) =
- ctrl->tRRD
- | (ctrl->tRTP << 4)
- | (ctrl->tCKE << 8)
- | (ctrl->tWTR << 12)
- | (ctrl->tFAW << 16)
- | (ctrl->tWR << 24)
- | (ctrl->cmd_stretch[channel] << 30);
+ FOR_ALL_POPULATED_CHANNELS {
+ MCHBAR32(TC_RAP_ch(channel)) =
+ (ctrl->tRRD << 0)
+ | (ctrl->tRTP << 4)
+ | (ctrl->tCKE << 8)
+ | (ctrl->tWTR << 12)
+ | (ctrl->tFAW << 16)
+ | (ctrl->tWR << 24)
+ | (ctrl->cmd_stretch[channel] << 30);
+ }
udelay(1);
@@ -3290,11 +3173,11 @@ void restore_timings(ramctr_timing *ctrl)
}
FOR_ALL_POPULATED_CHANNELS
- MCHBAR32_OR(TC_RWP_ch(channel), 0x8000000);
+ MCHBAR32_OR(TC_RWP_ch(channel), 0x08000000);
FOR_ALL_POPULATED_CHANNELS {
- udelay (1);
- MCHBAR32_OR(SCHED_CBIT_ch(channel), 0x200000);
+ udelay(1);
+ MCHBAR32_OR(SCHED_CBIT_ch(channel), 0x00200000);
}
printram("CPE\n");
@@ -3310,36 +3193,39 @@ void restore_timings(ramctr_timing *ctrl)
u32 reg, addr;
- while (!(MCHBAR32(RCOMP_TIMER) & 0x10000));
+ /* Poll for RCOMP */
+ while (!(MCHBAR32(RCOMP_TIMER) & (1 << 16)))
+ ;
+
do {
reg = MCHBAR32(IOSAV_STATUS_ch(0));
} while ((reg & 0x14) == 0);
- // Set state of memory controller
+ /* Set state of memory controller */
MCHBAR32(MC_INIT_STATE_G) = 0x116;
- MCHBAR32(MC_INIT_STATE) = 0;
+ MCHBAR32(MC_INIT_STATE) = 0;
- // Wait 500us
+ /* Wait 500us */
udelay(500);
FOR_ALL_CHANNELS {
- // Set valid rank CKE
+ /* Set valid rank CKE */
reg = 0;
- reg = (reg & ~0xf) | ctrl->rankmap[channel];
+ reg = (reg & ~0x0f) | ctrl->rankmap[channel];
addr = MC_INIT_STATE_ch(channel);
MCHBAR32(addr) = reg;
- // Wait 10ns for ranks to settle
- //udelay(0.01);
+ /* Wait 10ns for ranks to settle */
+ // udelay(0.01);
reg = (reg & ~0xf0) | (ctrl->rankmap[channel] << 4);
MCHBAR32(addr) = reg;
- // Write reset using a NOP
+ /* Write reset using a NOP */
write_reset(ctrl);
}
- /* mrs commands. */
+ /* MRS commands */
dram_mrscommands(ctrl);
printram("CP5c\n");
diff --git a/src/northbridge/intel/sandybridge/raminit_common.h b/src/northbridge/intel/sandybridge/raminit_common.h
index b1abf5e83a..0735ceaa8f 100644
--- a/src/northbridge/intel/sandybridge/raminit_common.h
+++ b/src/northbridge/intel/sandybridge/raminit_common.h
@@ -17,29 +17,29 @@
#include <stdint.h>
-#define BASEFREQ 133
-#define tDLLK 512
+#define BASEFREQ 133
+#define tDLLK 512
-#define IS_SANDY_CPU(x) ((x & 0xffff0) == 0x206a0)
-#define IS_SANDY_CPU_C(x) ((x & 0xf) == 4)
+#define IS_SANDY_CPU(x) ((x & 0xffff0) == 0x206a0)
+#define IS_SANDY_CPU_C(x) ((x & 0xf) == 4)
#define IS_SANDY_CPU_D0(x) ((x & 0xf) == 5)
#define IS_SANDY_CPU_D1(x) ((x & 0xf) == 6)
#define IS_SANDY_CPU_D2(x) ((x & 0xf) == 7)
-#define IS_IVY_CPU(x) ((x & 0xffff0) == 0x306a0)
+#define IS_IVY_CPU(x) ((x & 0xffff0) == 0x306a0)
#define IS_IVY_CPU_C(x) ((x & 0xf) == 4)
#define IS_IVY_CPU_K(x) ((x & 0xf) == 5)
#define IS_IVY_CPU_D(x) ((x & 0xf) == 6)
#define IS_IVY_CPU_E(x) ((x & 0xf) >= 8)
-#define NUM_CHANNELS 2
-#define NUM_SLOTRANKS 4
-#define NUM_SLOTS 2
-#define NUM_LANES 8
+#define NUM_CHANNELS 2
+#define NUM_SLOTRANKS 4
+#define NUM_SLOTS 2
+#define NUM_LANES 8
/* FIXME: Vendor BIOS uses 64 but our algorithms are less
performant and even 1 seems to be enough in practice. */
-#define NUM_PATTERNS 4
+#define NUM_PATTERNS 4
typedef struct odtmap_st {
u16 rttwr;
@@ -51,24 +51,24 @@ typedef struct dimm_info_st {
} dimm_info;
struct ram_rank_timings {
- /* ROUNDT_LAT register. One byte per slotrank. */
+ /* ROUNDT_LAT register: One byte per slotrank */
u8 roundtrip_latency;
- /* IO_LATENCY register. One nibble per slotrank. */
+ /* IO_LATENCY register: One nibble per slotrank */
u8 io_latency;
- /* Phase interpolator coding for command and control. */
+ /* Phase interpolator coding for command and control */
int pi_coding;
struct ram_lane_timings {
- /* lane register offset 0x10. */
- u16 timA; /* bits 0 - 5, bits 16 - 18 */
- u8 rising; /* bits 8 - 14 */
- u8 falling; /* bits 20 - 26. */
-
- /* lane register offset 0x20. */
- int timC; /* bit 0 - 5, 19. */
- u16 timB; /* bits 8 - 13, 15 - 17. */
+ /* Lane register offset 0x10 */
+ u16 timA; /* bits 0 - 5, bits 16 - 18 */
+ u8 rising; /* bits 8 - 14 */
+ u8 falling; /* bits 20 - 26 */
+
+ /* Lane register offset 0x20 */
+ int timC; /* bits 0 - 5, 19 */
+ u16 timB; /* bits 8 - 13, 15 - 17 */
} lanes[NUM_LANES];
};
@@ -82,7 +82,7 @@ typedef struct ramctr_timing_st {
u8 base_freq;
u16 cas_supported;
- /* tLatencies are in units of ns, scaled by x256 */
+ /* Latencies are in units of ns, scaled by x256 */
u32 tCK;
u32 tAA;
u32 tWR;
@@ -97,8 +97,8 @@ typedef struct ramctr_timing_st {
u32 tCWL;
u32 tCMD;
/* Latencies in terms of clock cycles
- * They are saved separately as they are needed for DRAM MRS commands */
- u8 CAS; /* CAS read latency */
+ They are saved separately as they are needed for DRAM MRS commands */
+ u8 CAS; /* CAS read latency */
u8 CWL; /* CAS write latency */
u32 tREFI;
@@ -110,7 +110,7 @@ typedef struct ramctr_timing_st {
u32 tXP;
u32 tAONPD;
- /* Bits [0..11] of PM_DLL_CONFIG: Master DLL wakeup delay timer. */
+ /* Bits [0..11] of PM_DLL_CONFIG: Master DLL wakeup delay timer */
u16 mdll_wake_delay;
u8 rankmap[NUM_CHANNELS];
@@ -135,7 +135,6 @@ typedef struct ramctr_timing_st {
dimm_info info;
} ramctr_timing;
-#define HOST_BRIDGE PCI_DEV(0, 0, 0)
#define SOUTHBRIDGE PCI_DEV(0, 0x1f, 0)
#define FOR_ALL_LANES for (lane = 0; lane < NUM_LANES; lane++)
@@ -149,8 +148,8 @@ typedef struct ramctr_timing_st {
#define MAX_CAS 18
#define MIN_CAS 4
-#define MAKE_ERR ((channel<<16)|(slotrank<<8)|1)
-#define GET_ERR_CHANNEL(x) (x>>16)
+#define MAKE_ERR ((channel << 16) | (slotrank << 8) | 1)
+#define GET_ERR_CHANNEL(x) (x >> 16)
u8 get_CWL(u32 tCK);
void dram_mrscommands(ramctr_timing *ctrl);
@@ -174,17 +173,14 @@ void normalize_training(ramctr_timing *ctrl);
void write_controller_mr(ramctr_timing *ctrl);
int channel_test(ramctr_timing *ctrl);
void set_scrambling_seed(ramctr_timing *ctrl);
-void set_4f8c(void);
+void set_wmm_behavior(void);
void prepare_training(ramctr_timing *ctrl);
-void set_4008c(ramctr_timing *ctrl);
+void set_read_write_timings(ramctr_timing *ctrl);
void set_normal_operation(ramctr_timing *ctrl);
void final_registers(ramctr_timing *ctrl);
void restore_timings(ramctr_timing *ctrl);
-int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot,
- int s3_resume, int me_uma_size);
-
-int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot,
- int s3_resume, int me_uma_size);
+int try_init_dram_ddr3_snb(ramctr_timing *ctrl, int fast_boot, int s3_resume, int me_uma_size);
+int try_init_dram_ddr3_ivb(ramctr_timing *ctrl, int fast_boot, int s3_resume, int me_uma_size);
#endif
diff --git a/src/northbridge/intel/sandybridge/raminit_ivy.c b/src/northbridge/intel/sandybridge/raminit_ivy.c
index a992d9c98c..06d23825b6 100644
--- a/src/northbridge/intel/sandybridge/raminit_ivy.c
+++ b/src/northbridge/intel/sandybridge/raminit_ivy.c
@@ -19,12 +19,10 @@
#include "raminit_native.h"
#include "raminit_common.h"
-/* Frequency multiplier. */
+/* Frequency multiplier */
static u32 get_FRQ(u32 tCK, u8 base_freq)
{
- u32 FRQ;
-
- FRQ = 256000 / (tCK * base_freq);
+ const u32 FRQ = 256000 / (tCK * base_freq);
if (base_freq == 100) {
if (FRQ > 12)
@@ -41,249 +39,181 @@ static u32 get_FRQ(u32 tCK, u8 base_freq)
return FRQ;
}
+/* Get REFI based on MC frequency, tREFI = 7.8usec */
static u32 get_REFI(u32 tCK, u8 base_freq)
{
- u32 refi;
-
if (base_freq == 100) {
- /* Get REFI based on MCU frequency using the following rule:
- * tREFI = 7.8usec
- * _________________________________________
- * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 |
- * REFI : | 5460 | 6240 | 7020 | 7800 | 8580 | 9360 |
- */
- static const u32 frq_xs_map[] =
- { 5460, 6240, 7020, 7800, 8580, 9360 };
- refi = frq_xs_map[get_FRQ(tCK, 100) - 7];
+ static const u32 frq_xs_map[] = {
+ /* FRQ: 7, 8, 9, 10, 11, 12, */
+ 5460, 6240, 7020, 7800, 8580, 9360,
+ };
+ return frq_xs_map[get_FRQ(tCK, 100) - 7];
+
} else {
- /* Get REFI based on MCU frequency using the following rule:
- * tREFI = 7.8usec
- * ________________________________________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
- * REFI: | 3120 | 4160 | 5200 | 6240 | 7280 | 8320 | 9360 | 10400 |
- */
- static const u32 frq_refi_map[] =
- { 3120, 4160, 5200, 6240, 7280, 8320, 9360, 10400 };
- refi = frq_refi_map[get_FRQ(tCK, 133) - 3];
+ static const u32 frq_refi_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */
+ 3120, 4160, 5200, 6240, 7280, 8320, 9360, 10400,
+ };
+ return frq_refi_map[get_FRQ(tCK, 133) - 3];
}
-
- return refi;
}
+/* Get XSOffset based on MC frequency, tXS-Offset: tXS = tRFC + 10ns */
static u8 get_XSOffset(u32 tCK, u8 base_freq)
{
- u8 xsoffset;
-
if (base_freq == 100) {
- /* Get XSOffset based on MCU frequency using the following rule:
- * tXS-offset: tXS = tRFC+10ns.
- * _____________________________
- * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 |
- * XSOffset : | 7 | 8 | 9 | 10 | 11 | 12 |
- */
- static const u8 frq_xs_map[] = { 7, 8, 9, 10, 11, 12 };
- xsoffset = frq_xs_map[get_FRQ(tCK, 100) - 7];
+ static const u8 frq_xs_map[] = {
+ /* FRQ: 7, 8, 9, 10, 11, 12, */
+ 7, 8, 9, 10, 11, 12,
+ };
+ return frq_xs_map[get_FRQ(tCK, 100) - 7];
+
} else {
- /* Get XSOffset based on MCU frequency using the following rule:
- * ___________________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
- * XSOffset : | 4 | 6 | 7 | 8 | 10 | 11 | 12 | 14 |
- */
- static const u8 frq_xs_map[] = { 4, 6, 7, 8, 10, 11, 12, 14 };
- xsoffset = frq_xs_map[get_FRQ(tCK, 133) - 3];
+ static const u8 frq_xs_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */
+ 4, 6, 7, 8, 10, 11, 12, 14,
+ };
+ return frq_xs_map[get_FRQ(tCK, 133) - 3];
}
-
- return xsoffset;
}
+/* Get MOD based on MC frequency */
static u8 get_MOD(u32 tCK, u8 base_freq)
{
- u8 mod;
-
if (base_freq == 100) {
- /* Get MOD based on MCU frequency using the following rule:
- * _____________________________
- * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 |
- * MOD : | 12 | 12 | 14 | 15 | 17 | 18 |
- */
+ static const u8 frq_mod_map[] = {
+ /* FRQ: 7, 8, 9, 10, 11, 12, */
+ 12, 12, 14, 15, 17, 18,
+ };
+ return frq_mod_map[get_FRQ(tCK, 100) - 7];
- static const u8 frq_mod_map[] = { 12, 12, 14, 15, 17, 18 };
- mod = frq_mod_map[get_FRQ(tCK, 100) - 7];
} else {
- /* Get MOD based on MCU frequency using the following rule:
- * _______________________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
- * MOD : | 12 | 12 | 12 | 12 | 15 | 16 | 18 | 20 |
- */
-
- static const u8 frq_mod_map[] = { 12, 12, 12, 12, 15, 16, 18, 20 };
- mod = frq_mod_map[get_FRQ(tCK, 133) - 3];
+ static const u8 frq_mod_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */
+ 12, 12, 12, 12, 15, 16, 18, 20,
+ };
+ return frq_mod_map[get_FRQ(tCK, 133) - 3];
}
- return mod;
}
+/* Get Write Leveling Output delay based on MC frequency */
static u8 get_WLO(u32 tCK, u8 base_freq)
{
- u8 wlo;
-
if (base_freq == 100) {
- /* Get WLO based on MCU frequency using the following rule:
- * Write leveling output delay
- * _____________________________
- * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 |
- * MOD : | 6 | 6 | 7 | 8 | 9 | 9 |
- */
+ static const u8 frq_wlo_map[] = {
+ /* FRQ: 7, 8, 9, 10, 11, 12, */
+ 6, 6, 7, 8, 9, 9,
+ };
+ return frq_wlo_map[get_FRQ(tCK, 100) - 7];
- static const u8 frq_wlo_map[] = { 6, 6, 7, 8, 9, 9 };
- wlo = frq_wlo_map[get_FRQ(tCK, 100) - 7];
} else {
- /* Get WLO based on MCU frequency using the following rule:
- * Write leveling output delay
- * ________________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
- * WLO : | 4 | 5 | 6 | 6 | 8 | 8 | 9 | 10 |
- */
- static const u8 frq_wlo_map[] = { 4, 5, 6, 6, 8, 8, 9, 10 };
- wlo = frq_wlo_map[get_FRQ(tCK, 133) - 3];
+ static const u8 frq_wlo_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */
+ 4, 5, 6, 6, 8, 8, 9, 10,
+ };
+ return frq_wlo_map[get_FRQ(tCK, 133) - 3];
}
-
- return wlo;
}
+/* Get CKE based on MC frequency */
static u8 get_CKE(u32 tCK, u8 base_freq)
{
- u8 cke;
-
if (base_freq == 100) {
- /* Get CKE based on MCU frequency using the following rule:
- * _____________________________
- * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 |
- * MOD : | 4 | 4 | 5 | 5 | 6 | 6 |
- */
+ static const u8 frq_cke_map[] = {
+ /* FRQ: 7, 8, 9, 10, 11, 12, */
+ 4, 4, 5, 5, 6, 6,
+ };
+ return frq_cke_map[get_FRQ(tCK, 100) - 7];
- static const u8 frq_cke_map[] = { 4, 4, 5, 5, 6, 6 };
- cke = frq_cke_map[get_FRQ(tCK, 100) - 7];
} else {
- /* Get CKE based on MCU frequency using the following rule:
- * ________________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
- * WLO : | 3 | 3 | 4 | 4 | 5 | 6 | 6 | 7 |
- */
- static const u8 frq_cke_map[] = { 3, 3, 4, 4, 5, 6, 6, 7 };
- cke = frq_cke_map[get_FRQ(tCK, 133) - 3];
+ static const u8 frq_cke_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */
+ 3, 3, 4, 4, 5, 6, 6, 7,
+ };
+ return frq_cke_map[get_FRQ(tCK, 133) - 3];
}
-
- return cke;
}
+/* Get XPDLL based on MC frequency */
static u8 get_XPDLL(u32 tCK, u8 base_freq)
{
- u8 xpdll;
-
if (base_freq == 100) {
- /* Get XPDLL based on MCU frequency using the following rule:
- * _____________________________
- * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 |
- * XPDLL : | 17 | 20 | 22 | 24 | 27 | 32 |
- */
+ static const u8 frq_xpdll_map[] = {
+ /* FRQ: 7, 8, 9, 10, 11, 12, */
+ 17, 20, 22, 24, 27, 32,
+ };
+ return frq_xpdll_map[get_FRQ(tCK, 100) - 7];
- static const u8 frq_xpdll_map[] = { 17, 20, 22, 24, 27, 32 };
- xpdll = frq_xpdll_map[get_FRQ(tCK, 100) - 7];
} else {
- /* Get XPDLL based on MCU frequency using the following rule:
- * _______________________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
- * XPDLL : | 10 | 13 | 16 | 20 | 23 | 26 | 29 | 32 |
- */
- static const u8 frq_xpdll_map[] = { 10, 13, 16, 20, 23, 26, 29, 32 };
- xpdll = frq_xpdll_map[get_FRQ(tCK, 133) - 3];
+ static const u8 frq_xpdll_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */
+ 10, 13, 16, 20, 23, 26, 29, 32,
+ };
+ return frq_xpdll_map[get_FRQ(tCK, 133) - 3];
}
-
- return xpdll;
}
+/* Get XP based on MC frequency */
static u8 get_XP(u32 tCK, u8 base_freq)
{
- u8 xp;
-
if (base_freq == 100) {
- /* Get XP based on MCU frequency using the following rule:
- * _____________________________
- * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 |
- * XP : | 5 | 5 | 6 | 6 | 7 | 8 |
- */
-
- static const u8 frq_xp_map[] = { 5, 5, 6, 6, 7, 8 };
- xp = frq_xp_map[get_FRQ(tCK, 100) - 7];
+ static const u8 frq_xp_map[] = {
+ /* FRQ: 7, 8, 9, 10, 11, 12, */
+ 5, 5, 6, 6, 7, 8,
+ };
+ return frq_xp_map[get_FRQ(tCK, 100) - 7];
} else {
- /* Get XP based on MCU frequency using the following rule:
- * _______________________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
- * XP : | 3 | 4 | 4 | 5 | 6 | 7 | 8 | 8 |
- */
- static const u8 frq_xp_map[] = { 3, 4, 4, 5, 6, 7, 8, 8 };
- xp = frq_xp_map[get_FRQ(tCK, 133) - 3];
- }
- return xp;
+ static const u8 frq_xp_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */
+ 3, 4, 4, 5, 6, 7, 8, 8
+ };
+ return frq_xp_map[get_FRQ(tCK, 133) - 3];
+ }
}
+/* Get AONPD based on MC frequency */
static u8 get_AONPD(u32 tCK, u8 base_freq)
{
- u8 aonpd;
-
if (base_freq == 100) {
- /* Get AONPD based on MCU frequency using the following rule:
- * _____________________________
- * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 |
- * AONPD : | 6 | 8 | 8 | 9 | 10 | 11 |
- */
+ static const u8 frq_aonpd_map[] = {
+ /* FRQ: 7, 8, 9, 10, 11, 12, */
+ 6, 8, 8, 9, 10, 11,
+ };
+ return frq_aonpd_map[get_FRQ(tCK, 100) - 7];
- static const u8 frq_aonpd_map[] = { 6, 8, 8, 9, 10, 11 };
- aonpd = frq_aonpd_map[get_FRQ(tCK, 100) - 7];
} else {
- /* Get AONPD based on MCU frequency using the following rule:
- * _______________________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
- * AONPD : | 4 | 5 | 6 | 8 | 8 | 10 | 11 | 12 |
- */
- static const u8 frq_aonpd_map[] = { 4, 5, 6, 8, 8, 10, 11, 12 };
- aonpd = frq_aonpd_map[get_FRQ(tCK, 133) - 3];
+ static const u8 frq_aonpd_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */
+ 4, 5, 6, 8, 8, 10, 11, 12,
+ };
+ return frq_aonpd_map[get_FRQ(tCK, 133) - 3];
}
-
- return aonpd;
}
+/* Get COMP2 based on MC frequency */
static u32 get_COMP2(u32 tCK, u8 base_freq)
{
- u32 comp2;
-
if (base_freq == 100) {
- /* Get COMP2 based on MCU frequency using the following rule:
- * ______________________________________________________________
- * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 |
- * COMP : | CA8C264 | C6671E4 | C6671E4 | C446964 | C235924 | C235924 |
- */
+ static const u32 frq_comp2_map[] = {
+ // FRQ: 7, 8, 9, 10, 11, 12,
+ 0x0CA8C264, 0x0C6671E4, 0x0C6671E4, 0x0C446964, 0x0C235924, 0x0C235924,
+ };
+ return frq_comp2_map[get_FRQ(tCK, 100) - 7];
- static const u32 frq_comp2_map[] = { 0xCA8C264, 0xC6671E4, 0xC6671E4, 0xC446964, 0xC235924, 0xC235924 };
- comp2 = frq_comp2_map[get_FRQ(tCK, 100) - 7];
} else {
- /* Get COMP2 based on MCU frequency using the following rule:
- * ________________________________________________________________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
- * COMP : | D6FF5E4 | CEBDB64 | CA8C264 | C6671E4 | C446964 | C235924 | C235924 | C235924 |
- */
- static const u32 frq_comp2_map[] = { 0xD6FF5E4, 0xCEBDB64, 0xCA8C264,
- 0xC6671E4, 0xC446964, 0xC235924, 0xC235924, 0xC235924
+ static const u32 frq_comp2_map[] = {
+ /* FRQ: 3, 4, 5, 6, */
+ 0x0D6FF5E4, 0x0CEBDB64, 0x0CA8C264, 0x0C6671E4,
+
+ /* FRQ: 7, 8, 9, 10, */
+ 0x0C446964, 0x0C235924, 0x0C235924, 0x0C235924,
};
- comp2 = frq_comp2_map[get_FRQ(tCK, 133) - 3];
+ return frq_comp2_map[get_FRQ(tCK, 133) - 3];
}
-
- return comp2;
}
-static void ivb_normalize_tclk(ramctr_timing *ctrl,
- bool ref_100mhz_support)
+static void ivb_normalize_tclk(ramctr_timing *ctrl, bool ref_100mhz_support)
{
if (ctrl->tCK <= TCK_1200MHZ) {
ctrl->tCK = TCK_1200MHZ;
@@ -324,7 +254,7 @@ static void ivb_normalize_tclk(ramctr_timing *ctrl,
}
if (!ref_100mhz_support && ctrl->base_freq == 100) {
- /* Skip unsupported frequency. */
+ /* Skip unsupported frequency */
ctrl->tCK++;
ivb_normalize_tclk(ctrl, ref_100mhz_support);
}
@@ -333,29 +263,31 @@ static void ivb_normalize_tclk(ramctr_timing *ctrl,
static void find_cas_tck(ramctr_timing *ctrl)
{
u8 val;
- u32 val32;
u32 reg32;
u8 ref_100mhz_support;
- /* 100 Mhz reference clock supported */
- reg32 = pci_read_config32(PCI_DEV(0, 0, 0), CAPID0_B);
+ /* 100 MHz reference clock supported */
+ reg32 = pci_read_config32(HOST_BRIDGE, CAPID0_B);
ref_100mhz_support = !!((reg32 >> 21) & 0x7);
- printk(BIOS_DEBUG, "100MHz reference clock support: %s\n",
- ref_100mhz_support ? "yes" : "no");
+ printk(BIOS_DEBUG, "100MHz reference clock support: %s\n", ref_100mhz_support ? "yes"
+ : "no");
/* Find CAS latency */
while (1) {
- /* Normalising tCK before computing clock could potentially
- * results in lower selected CAS, which is desired.
+ /*
+ * Normalising tCK before computing clock could potentially
+ * result in a lower selected CAS, which is desired.
*/
ivb_normalize_tclk(ctrl, ref_100mhz_support);
if (!(ctrl->tCK))
die("Couldn't find compatible clock / CAS settings\n");
+
val = DIV_ROUND_UP(ctrl->tAA, ctrl->tCK);
printk(BIOS_DEBUG, "Trying CAS %u, tCK %u.\n", val, ctrl->tCK);
for (; val <= MAX_CAS; val++)
if ((ctrl->cas_supported >> (val - MIN_CAS)) & 1)
break;
+
if (val == (MAX_CAS + 1)) {
ctrl->tCK++;
continue;
@@ -365,9 +297,7 @@ static void find_cas_tck(ramctr_timing *ctrl)
}
}
- val32 = NS2MHZ_DIV256 / ctrl->tCK;
- printk(BIOS_DEBUG, "Selected DRAM frequency: %u MHz\n", val32);
-
+ printk(BIOS_DEBUG, "Selected DRAM frequency: %u MHz\n", NS2MHZ_DIV256 / ctrl->tCK);
printk(BIOS_DEBUG, "Selected CAS latency : %uT\n", val);
ctrl->CAS = val;
}
@@ -375,9 +305,10 @@ static void find_cas_tck(ramctr_timing *ctrl)
static void dram_timing(ramctr_timing *ctrl)
{
- /* Maximum supported DDR3 frequency is 1400MHz (DDR3 2800).
- * We cap it at 1200Mhz (DDR3 2400).
- * Then, align it to the closest JEDEC standard frequency */
+ /*
+ * On Ivy Bridge, the maximum supported DDR3 frequency is 1400MHz (DDR3 2800).
+ * Cap it at 1200MHz (DDR3 2400), and align it to the closest JEDEC standard frequency.
+ */
if (ctrl->tCK == TCK_1200MHZ) {
ctrl->edge_offset[0] = 18; //XXX: guessed
ctrl->edge_offset[1] = 8;
@@ -386,6 +317,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 8;
ctrl->timC_offset[2] = 8;
ctrl->pi_coding_threshold = 10;
+
} else if (ctrl->tCK == TCK_1100MHZ) {
ctrl->edge_offset[0] = 17; //XXX: guessed
ctrl->edge_offset[1] = 7;
@@ -394,6 +326,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 7;
ctrl->timC_offset[2] = 7;
ctrl->pi_coding_threshold = 13;
+
} else if (ctrl->tCK == TCK_1066MHZ) {
ctrl->edge_offset[0] = 16;
ctrl->edge_offset[1] = 7;
@@ -402,6 +335,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 7;
ctrl->timC_offset[2] = 7;
ctrl->pi_coding_threshold = 13;
+
} else if (ctrl->tCK == TCK_1000MHZ) {
ctrl->edge_offset[0] = 15; //XXX: guessed
ctrl->edge_offset[1] = 6;
@@ -410,6 +344,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 6;
ctrl->timC_offset[2] = 6;
ctrl->pi_coding_threshold = 13;
+
} else if (ctrl->tCK == TCK_933MHZ) {
ctrl->edge_offset[0] = 14;
ctrl->edge_offset[1] = 6;
@@ -418,6 +353,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 6;
ctrl->timC_offset[2] = 6;
ctrl->pi_coding_threshold = 15;
+
} else if (ctrl->tCK == TCK_900MHZ) {
ctrl->edge_offset[0] = 14; //XXX: guessed
ctrl->edge_offset[1] = 6;
@@ -426,6 +362,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 6;
ctrl->timC_offset[2] = 6;
ctrl->pi_coding_threshold = 12;
+
} else if (ctrl->tCK == TCK_800MHZ) {
ctrl->edge_offset[0] = 13;
ctrl->edge_offset[1] = 5;
@@ -434,6 +371,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 5;
ctrl->timC_offset[2] = 5;
ctrl->pi_coding_threshold = 15;
+
} else if (ctrl->tCK == TCK_700MHZ) {
ctrl->edge_offset[0] = 13; //XXX: guessed
ctrl->edge_offset[1] = 5;
@@ -442,6 +380,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 5;
ctrl->timC_offset[2] = 5;
ctrl->pi_coding_threshold = 16;
+
} else if (ctrl->tCK == TCK_666MHZ) {
ctrl->edge_offset[0] = 10;
ctrl->edge_offset[1] = 4;
@@ -450,6 +389,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 4;
ctrl->timC_offset[2] = 4;
ctrl->pi_coding_threshold = 16;
+
} else if (ctrl->tCK == TCK_533MHZ) {
ctrl->edge_offset[0] = 8;
ctrl->edge_offset[1] = 3;
@@ -458,6 +398,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 3;
ctrl->timC_offset[2] = 3;
ctrl->pi_coding_threshold = 17;
+
} else { /* TCK_400MHZ */
ctrl->edge_offset[0] = 6;
ctrl->edge_offset[1] = 2;
@@ -478,13 +419,14 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->CWL = DIV_ROUND_UP(ctrl->tCWL, ctrl->tCK);
else
ctrl->CWL = get_CWL(ctrl->tCK);
+
printk(BIOS_DEBUG, "Selected CWL latency : %uT\n", ctrl->CWL);
/* Find tRCD */
ctrl->tRCD = DIV_ROUND_UP(ctrl->tRCD, ctrl->tCK);
printk(BIOS_DEBUG, "Selected tRCD : %uT\n", ctrl->tRCD);
- ctrl->tRP = DIV_ROUND_UP(ctrl->tRP, ctrl->tCK);
+ ctrl->tRP = DIV_ROUND_UP(ctrl->tRP, ctrl->tCK);
printk(BIOS_DEBUG, "Selected tRP : %uT\n", ctrl->tRP);
/* Find tRAS */
@@ -492,7 +434,7 @@ static void dram_timing(ramctr_timing *ctrl)
printk(BIOS_DEBUG, "Selected tRAS : %uT\n", ctrl->tRAS);
/* Find tWR */
- ctrl->tWR = DIV_ROUND_UP(ctrl->tWR, ctrl->tCK);
+ ctrl->tWR = DIV_ROUND_UP(ctrl->tWR, ctrl->tCK);
printk(BIOS_DEBUG, "Selected tWR : %uT\n", ctrl->tWR);
/* Find tFAW */
@@ -515,21 +457,22 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->tRFC = DIV_ROUND_UP(ctrl->tRFC, ctrl->tCK);
printk(BIOS_DEBUG, "Selected tRFC : %uT\n", ctrl->tRFC);
- ctrl->tREFI = get_REFI(ctrl->tCK, ctrl->base_freq);
- ctrl->tMOD = get_MOD(ctrl->tCK, ctrl->base_freq);
+ ctrl->tREFI = get_REFI(ctrl->tCK, ctrl->base_freq);
+ ctrl->tMOD = get_MOD(ctrl->tCK, ctrl->base_freq);
ctrl->tXSOffset = get_XSOffset(ctrl->tCK, ctrl->base_freq);
- ctrl->tWLO = get_WLO(ctrl->tCK, ctrl->base_freq);
- ctrl->tCKE = get_CKE(ctrl->tCK, ctrl->base_freq);
- ctrl->tXPDLL = get_XPDLL(ctrl->tCK, ctrl->base_freq);
- ctrl->tXP = get_XP(ctrl->tCK, ctrl->base_freq);
- ctrl->tAONPD = get_AONPD(ctrl->tCK, ctrl->base_freq);
+ ctrl->tWLO = get_WLO(ctrl->tCK, ctrl->base_freq);
+ ctrl->tCKE = get_CKE(ctrl->tCK, ctrl->base_freq);
+ ctrl->tXPDLL = get_XPDLL(ctrl->tCK, ctrl->base_freq);
+ ctrl->tXP = get_XP(ctrl->tCK, ctrl->base_freq);
+ ctrl->tAONPD = get_AONPD(ctrl->tCK, ctrl->base_freq);
}
static void dram_freq(ramctr_timing *ctrl)
{
if (ctrl->tCK > TCK_400MHZ) {
- printk (BIOS_ERR, "DRAM frequency is under lowest supported "
- "frequency (400 MHz). Increasing to 400 MHz as last resort");
+ printk(BIOS_ERR,
+ "DRAM frequency is under lowest supported frequency (400 MHz). "
+ "Increasing to 400 MHz as last resort");
ctrl->tCK = TCK_400MHZ;
}
@@ -540,11 +483,12 @@ static void dram_freq(ramctr_timing *ctrl)
/* Step 1 - Set target PCU frequency */
find_cas_tck(ctrl);
- /* Frequency multiplier. */
- u32 FRQ = get_FRQ(ctrl->tCK, ctrl->base_freq);
+ /* Frequency multiplier */
+ const u32 FRQ = get_FRQ(ctrl->tCK, ctrl->base_freq);
- /* The PLL will never lock if the required frequency is
- * already set. Exit early to prevent a system hang.
+ /*
+ * The PLL will never lock if the required frequency is already set.
+ * Exit early to prevent a system hang.
*/
reg1 = MCHBAR32(MC_BIOS_DATA);
val2 = (u8) reg1;
@@ -554,10 +498,11 @@ static void dram_freq(ramctr_timing *ctrl)
/* Step 2 - Select frequency in the MCU */
reg1 = FRQ;
if (ctrl->base_freq == 100)
- reg1 |= 0x100; /* Enable 100Mhz REF clock */
- reg1 |= 0x80000000; // set running bit
+ reg1 |= 0x100; /* Enable 100Mhz REF clock */
+
+ reg1 |= 0x80000000; /* set running bit */
MCHBAR32(MC_BIOS_REQ) = reg1;
- int i=0;
+ int i = 0;
printk(BIOS_DEBUG, "PLL busy... ");
while (reg1 & 0x80000000) {
udelay(10);
@@ -581,61 +526,57 @@ static void dram_freq(ramctr_timing *ctrl)
static void dram_ioregs(ramctr_timing *ctrl)
{
- u32 reg, comp2;
+ u32 reg;
int channel;
- // IO clock
+ /* IO clock */
FOR_ALL_CHANNELS {
MCHBAR32(GDCRCLKRANKSUSED_ch(channel)) = ctrl->rankmap[channel];
}
- // IO command
+ /* IO command */
FOR_ALL_CHANNELS {
MCHBAR32(GDCRCTLRANKSUSED_ch(channel)) = ctrl->rankmap[channel];
}
- // IO control
+ /* IO control */
FOR_ALL_POPULATED_CHANNELS {
program_timings(ctrl, channel);
}
- // Rcomp
+ /* Perform RCOMP */
printram("RCOMP...");
- reg = 0;
- while (reg == 0) {
- reg = MCHBAR32(RCOMP_TIMER) & 0x10000;
- }
+ while (!(MCHBAR32(RCOMP_TIMER) & (1 << 16)))
+ ;
+
printram("done\n");
- // Set comp2
- comp2 = get_COMP2(ctrl->tCK, ctrl->base_freq);
- MCHBAR32(CRCOMPOFST2) = comp2;
+ /* Set COMP2 */
+ MCHBAR32(CRCOMPOFST2) = get_COMP2(ctrl->tCK, ctrl->base_freq);
printram("COMP2 done\n");
- // Set comp1
+ /* Set COMP1 */
FOR_ALL_POPULATED_CHANNELS {
- reg = MCHBAR32(CRCOMPOFST1_ch(channel)); //ch0
- reg = (reg & ~0xe00) | (1 << 9); //odt
- reg = (reg & ~0xe00000) | (1 << 21); //clk drive up
- reg = (reg & ~0x38000000) | (1 << 27); //ctl drive up
+ reg = MCHBAR32(CRCOMPOFST1_ch(channel));
+ reg = (reg & ~0x00000e00) | (1 << 9); /* ODT */
+ reg = (reg & ~0x00e00000) | (1 << 21); /* clk drive up */
+ reg = (reg & ~0x38000000) | (1 << 27); /* ctl drive up */
MCHBAR32(CRCOMPOFST1_ch(channel)) = reg;
}
printram("COMP1 done\n");
printram("FORCE RCOMP and wait 20us...");
- MCHBAR32(M_COMP) |= 0x100;
+ MCHBAR32(M_COMP) |= (1 << 8);
udelay(20);
printram("done\n");
}
-int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot,
- int s3_resume, int me_uma_size)
+int try_init_dram_ddr3_ivb(ramctr_timing *ctrl, int fast_boot, int s3_resume, int me_uma_size)
{
int err;
- printk(BIOS_DEBUG, "Starting Ivybridge RAM training (%d).\n",
- fast_boot);
+ printk(BIOS_DEBUG, "Starting Ivybridge RAM training (%d).\n", fast_boot);
if (!fast_boot) {
/* Find fastest common supported parameters */
@@ -644,7 +585,7 @@ int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot,
dram_dimm_mapping(ctrl);
}
- /* Set MCU frequency */
+ /* Set MC frequency */
dram_freq(ctrl);
if (!fast_boot) {
@@ -653,7 +594,7 @@ int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot,
}
/* Set version register */
- MCHBAR32(MRC_REVISION) = 0xC04EB002;
+ MCHBAR32(MRC_REVISION) = 0xc04eb002;
/* Enable crossover */
dram_xover(ctrl);
@@ -667,11 +608,11 @@ int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot,
/* Set scheduler chicken bits */
MCHBAR32(SCHED_CBIT) = 0x10100005;
- /* Set CPU specific register */
- set_4f8c();
+ /* Set up watermarks and starvation counter */
+ set_wmm_behavior();
/* Clear IO reset bit */
- MCHBAR32(MC_INIT_STATE_G) &= ~0x20;
+ MCHBAR32(MC_INIT_STATE_G) &= ~(1 << 5);
/* Set MAD-DIMM registers */
dram_dimm_set_mapping(ctrl);
@@ -693,7 +634,7 @@ int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot,
if (fast_boot) {
restore_timings(ctrl);
} else {
- /* Do jedec ddr3 reset sequence */
+ /* Do JEDEC DDR3 reset sequence */
dram_jedecreset(ctrl);
printk(BIOS_DEBUG, "Done jedec reset\n");
@@ -737,7 +678,7 @@ int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot,
normalize_training(ctrl);
}
- set_4008c(ctrl);
+ set_read_write_timings(ctrl);
write_controller_mr(ctrl);
diff --git a/src/northbridge/intel/sandybridge/raminit_mrc.c b/src/northbridge/intel/sandybridge/raminit_mrc.c
index 9e07e2ebaf..5b4b46c583 100644
--- a/src/northbridge/intel/sandybridge/raminit_mrc.c
+++ b/src/northbridge/intel/sandybridge/raminit_mrc.c
@@ -44,8 +44,8 @@
*/
#if CONFIG(USE_OPTION_TABLE)
#include "option_table.h"
-#define CMOS_OFFSET_MRC_SEED (CMOS_VSTART_mrc_scrambler_seed >> 3)
-#define CMOS_OFFSET_MRC_SEED_S3 (CMOS_VSTART_mrc_scrambler_seed_s3 >> 3)
+#define CMOS_OFFSET_MRC_SEED (CMOS_VSTART_mrc_scrambler_seed >> 3)
+#define CMOS_OFFSET_MRC_SEED_S3 (CMOS_VSTART_mrc_scrambler_seed_s3 >> 3)
#define CMOS_OFFSET_MRC_SEED_CHK (CMOS_VSTART_mrc_scrambler_seed_chk >> 3)
#else
#define CMOS_OFFSET_MRC_SEED 152
@@ -60,8 +60,7 @@ void save_mrc_data(struct pei_data *pei_data)
u16 c1, c2, checksum;
/* Save the MRC S3 restore data to cbmem */
- mrc_cache_stash_data(MRC_TRAINING_DATA, MRC_CACHE_VERSION,
- pei_data->mrc_output,
+ mrc_cache_stash_data(MRC_TRAINING_DATA, MRC_CACHE_VERSION, pei_data->mrc_output,
pei_data->mrc_output_len);
/* Save the MRC seed values to CMOS */
@@ -74,14 +73,12 @@ void save_mrc_data(struct pei_data *pei_data)
pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3);
/* Save a simple checksum of the seed values */
- c1 = compute_ip_checksum((u8*)&pei_data->scrambler_seed,
- sizeof(u32));
- c2 = compute_ip_checksum((u8*)&pei_data->scrambler_seed_s3,
- sizeof(u32));
+ c1 = compute_ip_checksum((u8 *)&pei_data->scrambler_seed, sizeof(u32));
+ c2 = compute_ip_checksum((u8 *)&pei_data->scrambler_seed_s3, sizeof(u32));
checksum = add_ip_checksums(sizeof(u32), c1, c2);
- cmos_write(checksum & 0xff, CMOS_OFFSET_MRC_SEED_CHK);
- cmos_write((checksum >> 8) & 0xff, CMOS_OFFSET_MRC_SEED_CHK+1);
+ cmos_write((checksum >> 0) & 0xff, CMOS_OFFSET_MRC_SEED_CHK);
+ cmos_write((checksum >> 8) & 0xff, CMOS_OFFSET_MRC_SEED_CHK + 1);
}
static void prepare_mrc_cache(struct pei_data *pei_data)
@@ -89,7 +86,7 @@ static void prepare_mrc_cache(struct pei_data *pei_data)
struct region_device rdev;
u16 c1, c2, checksum, seed_checksum;
- // preset just in case there is an error
+ /* Preset just in case there is an error */
pei_data->mrc_input = NULL;
pei_data->mrc_input_len = 0;
@@ -103,14 +100,12 @@ static void prepare_mrc_cache(struct pei_data *pei_data)
pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3);
/* Compute seed checksum and compare */
- c1 = compute_ip_checksum((u8*)&pei_data->scrambler_seed,
- sizeof(u32));
- c2 = compute_ip_checksum((u8*)&pei_data->scrambler_seed_s3,
- sizeof(u32));
+ c1 = compute_ip_checksum((u8 *)&pei_data->scrambler_seed, sizeof(u32));
+ c2 = compute_ip_checksum((u8 *)&pei_data->scrambler_seed_s3, sizeof(u32));
checksum = add_ip_checksums(sizeof(u32), c1, c2);
- seed_checksum = cmos_read(CMOS_OFFSET_MRC_SEED_CHK);
- seed_checksum |= cmos_read(CMOS_OFFSET_MRC_SEED_CHK+1) << 8;
+ seed_checksum = cmos_read(CMOS_OFFSET_MRC_SEED_CHK);
+ seed_checksum |= cmos_read(CMOS_OFFSET_MRC_SEED_CHK + 1) << 8;
if (checksum != seed_checksum) {
printk(BIOS_ERR, "%s: invalid seed checksum\n", __func__);
@@ -119,68 +114,64 @@ static void prepare_mrc_cache(struct pei_data *pei_data)
return;
}
- if (mrc_cache_get_current(MRC_TRAINING_DATA, MRC_CACHE_VERSION,
- &rdev)) {
- /* error message printed in find_current_mrc_cache */
+ if (mrc_cache_get_current(MRC_TRAINING_DATA, MRC_CACHE_VERSION, &rdev)) {
+ /* Error message printed in find_current_mrc_cache */
return;
}
pei_data->mrc_input = rdev_mmap_full(&rdev);
pei_data->mrc_input_len = region_device_sz(&rdev);
- printk(BIOS_DEBUG, "%s: at %p, size %x\n",
- __func__, pei_data->mrc_input, pei_data->mrc_input_len);
+ printk(BIOS_DEBUG, "%s: at %p, size %x\n", __func__, pei_data->mrc_input,
+ pei_data->mrc_input_len);
}
static const char *ecc_decoder[] = {
"inactive",
"active on IO",
"disabled on IO",
- "active"
+ "active",
};
-/*
- * Dump in the log memory controller configuration as read from the memory
- * controller registers.
- */
+#define ON_OFF(val) (((val) & 1) ? "on" : "off")
+
+/* Print the memory controller configuration as read from the memory controller registers. */
static void report_memory_config(void)
{
u32 addr_decoder_common, addr_decode_ch[2];
int i;
addr_decoder_common = MCHBAR32(MAD_CHNL);
- addr_decode_ch[0] = MCHBAR32(MAD_DIMM_CH0);
- addr_decode_ch[1] = MCHBAR32(MAD_DIMM_CH1);
+ addr_decode_ch[0] = MCHBAR32(MAD_DIMM_CH0);
+ addr_decode_ch[1] = MCHBAR32(MAD_DIMM_CH1);
printk(BIOS_DEBUG, "memcfg DDR3 clock %d MHz\n",
- (MCHBAR32(MC_BIOS_DATA) * 13333 * 2 + 50)/100);
+ (MCHBAR32(MC_BIOS_DATA) * 13333 * 2 + 50) / 100);
+
printk(BIOS_DEBUG, "memcfg channel assignment: A: %d, B % d, C % d\n",
- addr_decoder_common & 3,
+ (addr_decoder_common >> 0) & 3,
(addr_decoder_common >> 2) & 3,
(addr_decoder_common >> 4) & 3);
for (i = 0; i < ARRAY_SIZE(addr_decode_ch); i++) {
u32 ch_conf = addr_decode_ch[i];
- printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n",
- i, ch_conf);
- printk(BIOS_DEBUG, " ECC %s\n",
- ecc_decoder[(ch_conf >> 24) & 3]);
- printk(BIOS_DEBUG, " enhanced interleave mode %s\n",
- ((ch_conf >> 22) & 1) ? "on" : "off");
- printk(BIOS_DEBUG, " rank interleave %s\n",
- ((ch_conf >> 21) & 1) ? "on" : "off");
+ printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n", i, ch_conf);
+ printk(BIOS_DEBUG, " ECC %s\n", ecc_decoder[(ch_conf >> 24) & 3]);
+ printk(BIOS_DEBUG, " enhanced interleave mode %s\n", ON_OFF(ch_conf >> 22));
+ printk(BIOS_DEBUG, " rank interleave %s\n", ON_OFF(ch_conf >> 21));
printk(BIOS_DEBUG, " DIMMA %d MB width x%d %s rank%s\n",
- ((ch_conf >> 0) & 0xff) * 256,
+ ((ch_conf >> 0) & 0xff) * 256,
((ch_conf >> 19) & 1) ? 16 : 8,
((ch_conf >> 17) & 1) ? "dual" : "single",
((ch_conf >> 16) & 1) ? "" : ", selected");
printk(BIOS_DEBUG, " DIMMB %d MB width x%d %s rank%s\n",
- ((ch_conf >> 8) & 0xff) * 256,
+ ((ch_conf >> 8) & 0xff) * 256,
((ch_conf >> 20) & 1) ? 16 : 8,
((ch_conf >> 18) & 1) ? "dual" : "single",
((ch_conf >> 16) & 1) ? ", selected" : "");
}
}
+#undef ON_OFF
/**
* Find PEI executable in coreboot filesystem and execute it.
@@ -190,7 +181,7 @@ static void report_memory_config(void)
void sdram_initialize(struct pei_data *pei_data)
{
struct sys_info sysinfo;
- int (*entry) (struct pei_data *pei_data) __attribute__((regparm(1)));
+ int (*entry)(struct pei_data *pei_data) __attribute__((regparm(1)));
/* Wait for ME to be ready */
intel_early_me_init();
@@ -245,18 +236,17 @@ void sdram_initialize(struct pei_data *pei_data)
if (CONFIG(USBDEBUG_IN_PRE_RAM))
usbdebug_hw_init(true);
- /* For reference print the System Agent version
- * after executing the UEFI PEI stage.
- */
+ /* For reference, print the System Agent version after executing the UEFI PEI stage */
u32 version = MCHBAR32(MRC_REVISION);
printk(BIOS_DEBUG, "System Agent Version %d.%d.%d Build %d\n",
- version >> 24, (version >> 16) & 0xff,
- (version >> 8) & 0xff, version & 0xff);
+ (version >> 24) & 0xff, (version >> 16) & 0xff,
+ (version >> 8) & 0xff, (version >> 0) & 0xff);
- /* Send ME init done for SandyBridge here. This is done
- * inside the SystemAgent binary on IvyBridge. */
- if (BASE_REV_SNB ==
- (pci_read_config16(PCI_CPU_DEVICE, PCI_DEVICE_ID) & BASE_REV_MASK))
+ /*
+ * Send ME init done for SandyBridge here.
+ * This is done inside the SystemAgent binary on IvyBridge.
+ */
+ if (BASE_REV_SNB == (pci_read_config16(PCI_CPU_DEVICE, PCI_DEVICE_ID) & BASE_REV_MASK))
intel_early_me_init_done(ME_INIT_STATUS_SUCCESS);
else
intel_early_me_status();
@@ -264,31 +254,30 @@ void sdram_initialize(struct pei_data *pei_data)
report_memory_config();
}
-/* These are the location and structure of MRC_VAR data in CAR.
- The CAR region looks like this:
- +------------------+ -> DCACHE_RAM_BASE
- | |
- | |
- | COREBOOT STACK |
- | |
- | |
- +------------------+ -> DCACHE_RAM_BASE + DCACHE_RAM_SIZE
- | |
- | MRC HEAP |
- | size = 0x5000 |
- | |
- +------------------+
- | |
- | MRC VAR |
- | size = 0x4000 |
- | |
- +------------------+ -> DACHE_RAM_BASE + DACHE_RAM_SIZE
- + DCACHE_RAM_MRC_VAR_SIZE
-
+/*
+ * These are the location and structure of MRC_VAR data in CAR.
+ * The CAR region looks like this:
+ * +------------------+ -> DCACHE_RAM_BASE
+ * | |
+ * | |
+ * | COREBOOT STACK |
+ * | |
+ * | |
+ * +------------------+ -> DCACHE_RAM_BASE + DCACHE_RAM_SIZE
+ * | |
+ * | MRC HEAP |
+ * | size = 0x5000 |
+ * | |
+ * +------------------+
+ * | |
+ * | MRC VAR |
+ * | size = 0x4000 |
+ * | |
+ * +------------------+ -> DACHE_RAM_BASE + DACHE_RAM_SIZE
+ * + DCACHE_RAM_MRC_VAR_SIZE
*/
-#define DCACHE_RAM_MRC_VAR_BASE \
- (CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE + \
- CONFIG_DCACHE_RAM_MRC_VAR_SIZE - 0x4000)
+#define DCACHE_RAM_MRC_VAR_BASE (CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE \
+ + CONFIG_DCACHE_RAM_MRC_VAR_SIZE - 0x4000)
struct mrc_var_data {
u32 acpi_timer_flag;
@@ -300,14 +289,14 @@ struct mrc_var_data {
static void northbridge_fill_pei_data(struct pei_data *pei_data)
{
- pei_data->mchbar = (uintptr_t)DEFAULT_MCHBAR;
- pei_data->dmibar = (uintptr_t)DEFAULT_DMIBAR;
- pei_data->epbar = DEFAULT_EPBAR;
- pei_data->pciexbar = CONFIG_MMCONF_BASE_ADDRESS;
+ pei_data->mchbar = (uintptr_t)DEFAULT_MCHBAR;
+ pei_data->dmibar = (uintptr_t)DEFAULT_DMIBAR;
+ pei_data->epbar = DEFAULT_EPBAR;
+ pei_data->pciexbar = CONFIG_MMCONF_BASE_ADDRESS;
pei_data->hpet_address = CONFIG_HPET_ADDRESS;
- pei_data->thermalbase = 0xfed08000;
- pei_data->system_type = get_platform_type() == PLATFORM_MOBILE ? 0 : 1;
- pei_data->tseg_size = CONFIG_SMM_TSEG_SIZE;
+ pei_data->thermalbase = 0xfed08000;
+ pei_data->system_type = !(get_platform_type() == PLATFORM_MOBILE);
+ pei_data->tseg_size = CONFIG_SMM_TSEG_SIZE;
if ((cpu_get_cpuid() & 0xffff0) == 0x306a0) {
const struct device *dev = pcidev_on_root(1, 0);
@@ -321,12 +310,12 @@ static void southbridge_fill_pei_data(struct pei_data *pei_data)
{
const struct device *dev = pcidev_on_root(0x19, 0);
- pei_data->smbusbar = SMBUS_IO_BASE;
- pei_data->wdbbar = 0x4000000;
- pei_data->wdbsize = 0x1000;
- pei_data->rcba = (uintptr_t)DEFAULT_RCBABASE;
- pei_data->pmbase = DEFAULT_PMBASE;
- pei_data->gpiobase = DEFAULT_GPIOBASE;
+ pei_data->smbusbar = SMBUS_IO_BASE;
+ pei_data->wdbbar = 0x04000000;
+ pei_data->wdbsize = 0x1000;
+ pei_data->rcba = (uintptr_t)DEFAULT_RCBABASE;
+ pei_data->pmbase = DEFAULT_PMBASE;
+ pei_data->gpiobase = DEFAULT_GPIOBASE;
pei_data->gbe_enable = dev && dev->enabled;
}
@@ -360,13 +349,10 @@ static void devicetree_fill_pei_data(struct pei_data *pei_data)
}
- memcpy(pei_data->spd_addresses, cfg->spd_addresses,
- sizeof(pei_data->spd_addresses));
+ memcpy(pei_data->spd_addresses, cfg->spd_addresses, sizeof(pei_data->spd_addresses));
+ memcpy(pei_data->ts_addresses, cfg->ts_addresses, sizeof(pei_data->ts_addresses));
- memcpy(pei_data->ts_addresses, cfg->ts_addresses,
- sizeof(pei_data->ts_addresses));
-
- pei_data->ec_present = cfg->ec_present;
+ pei_data->ec_present = cfg->ec_present;
pei_data->ddr3lv_support = cfg->ddr3lv_support;
pei_data->nmode = cfg->nmode;
@@ -375,15 +361,15 @@ static void devicetree_fill_pei_data(struct pei_data *pei_data)
memcpy(pei_data->usb_port_config, cfg->usb_port_config,
sizeof(pei_data->usb_port_config));
- pei_data->usb3.mode = cfg->usb3.mode;
+ pei_data->usb3.mode = cfg->usb3.mode;
pei_data->usb3.hs_port_switch_mask = cfg->usb3.hs_port_switch_mask;
- pei_data->usb3.preboot_support = cfg->usb3.preboot_support;
- pei_data->usb3.xhci_streams = cfg->usb3.xhci_streams;
+ pei_data->usb3.preboot_support = cfg->usb3.preboot_support;
+ pei_data->usb3.xhci_streams = cfg->usb3.xhci_streams;
}
static void disable_p2p(void)
{
- /* Disable PCI-to-PCI bridge early to prevent probing by MRC. */
+ /* Disable PCI-to-PCI bridge early to prevent probing by MRC */
const struct device *const p2p = pcidev_on_root(0x1e, 0);
if (p2p && p2p->enabled)
return;
@@ -393,7 +379,6 @@ static void disable_p2p(void)
void perform_raminit(int s3resume)
{
- int cbmem_was_initted;
struct pei_data pei_data;
struct mrc_var_data *mrc_var;
@@ -425,6 +410,7 @@ void perform_raminit(int s3resume)
if (pei_data.spd_data[i][0] && !pei_data.spd_data[0][0]) {
memcpy(pei_data.spd_data[0], pei_data.spd_data[i],
sizeof(pei_data.spd_data[0]));
+
} else if (pei_data.spd_data[i][0] && pei_data.spd_data[0][0]) {
if (memcmp(pei_data.spd_data[i], pei_data.spd_data[0],
sizeof(pei_data.spd_data[0])) != 0)
@@ -438,18 +424,18 @@ void perform_raminit(int s3resume)
timestamp_add_now(TS_BEFORE_INITRAM);
sdram_initialize(&pei_data);
+ /* Sanity check mrc_var location by verifying a known field */
mrc_var = (void *)DCACHE_RAM_MRC_VAR_BASE;
- /* Sanity check mrc_var location by verifying a known field. */
if (mrc_var->tx_byte == (uintptr_t)pei_data.tx_byte) {
printk(BIOS_DEBUG, "MRC_VAR pool occupied [%08x,%08x]\n",
- mrc_var->pool_base,
- mrc_var->pool_base + mrc_var->pool_used);
+ mrc_var->pool_base, mrc_var->pool_base + mrc_var->pool_used);
+
} else {
printk(BIOS_ERR, "Could not parse MRC_VAR data\n");
- hexdump32(BIOS_ERR, mrc_var, sizeof(*mrc_var)/sizeof(u32));
+ hexdump32(BIOS_ERR, mrc_var, sizeof(*mrc_var) / sizeof(u32));
}
- cbmem_was_initted = !cbmem_recovery(s3resume);
+ const int cbmem_was_initted = !cbmem_recovery(s3resume);
if (!s3resume)
save_mrc_data(&pei_data);
diff --git a/src/northbridge/intel/sandybridge/raminit_native.h b/src/northbridge/intel/sandybridge/raminit_native.h
index ecf13cf1f8..60a5665ba9 100644
--- a/src/northbridge/intel/sandybridge/raminit_native.h
+++ b/src/northbridge/intel/sandybridge/raminit_native.h
@@ -18,8 +18,8 @@
#include "sandybridge.h"
#include <device/dram/ddr3.h>
-/* The order is ch0dimmA, ch0dimmB, ch1dimmA, ch1dimmB. */
+/* The order is: ch0dimmA, ch0dimmB, ch1dimmA, ch1dimmB */
void read_spd(spd_raw_data *spd, u8 addr, bool id_only);
void mainboard_get_spd(spd_raw_data *spd, bool id_only);
-#endif /* RAMINIT_H */
+#endif /* RAMINIT_NATIVE_H */
diff --git a/src/northbridge/intel/sandybridge/raminit_sandy.c b/src/northbridge/intel/sandybridge/raminit_sandy.c
index b5169e7525..3b68c22b87 100644
--- a/src/northbridge/intel/sandybridge/raminit_sandy.c
+++ b/src/northbridge/intel/sandybridge/raminit_sandy.c
@@ -18,116 +18,105 @@
#include "raminit_native.h"
#include "raminit_common.h"
-/* Frequency multiplier. */
+/* Frequency multiplier */
static u32 get_FRQ(u32 tCK)
{
- u32 FRQ;
- FRQ = 256000 / (tCK * BASEFREQ);
+ const u32 FRQ = 256000 / (tCK * BASEFREQ);
+
if (FRQ > 8)
return 8;
if (FRQ < 3)
return 3;
+
return FRQ;
}
+/* Get REFI based on MC frequency */
static u32 get_REFI(u32 tCK)
{
- /* Get REFI based on MCU frequency using the following rule:
- * _________________________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 |
- * REFI: | 3120 | 4160 | 5200 | 6240 | 7280 | 8320 |
- */
- static const u32 frq_refi_map[] =
- { 3120, 4160, 5200, 6240, 7280, 8320 };
+ static const u32 frq_refi_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, */
+ 3120, 4160, 5200, 6240, 7280, 8320,
+ };
return frq_refi_map[get_FRQ(tCK) - 3];
}
+/* Get XSOffset based on MC frequency */
static u8 get_XSOffset(u32 tCK)
{
- /* Get XSOffset based on MCU frequency using the following rule:
- * _________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 |
- * XSOffset : | 4 | 6 | 7 | 8 | 10 | 11 |
- */
- static const u8 frq_xs_map[] = { 4, 6, 7, 8, 10, 11 };
+ static const u8 frq_xs_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, */
+ 4, 6, 7, 8, 10, 11,
+ };
return frq_xs_map[get_FRQ(tCK) - 3];
}
+/* Get MOD based on MC frequency */
static u8 get_MOD(u32 tCK)
{
- /* Get MOD based on MCU frequency using the following rule:
- * _____________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 |
- * MOD : | 12 | 12 | 12 | 12 | 15 | 16 |
- */
- static const u8 frq_mod_map[] = { 12, 12, 12, 12, 15, 16 };
+ static const u8 frq_mod_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, */
+ 12, 12, 12, 12, 15, 16,
+ };
return frq_mod_map[get_FRQ(tCK) - 3];
}
+/* Get Write Leveling Output delay based on MC frequency */
static u8 get_WLO(u32 tCK)
{
- /* Get WLO based on MCU frequency using the following rule:
- * _______________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 |
- * WLO : | 4 | 5 | 6 | 6 | 8 | 8 |
- */
- static const u8 frq_wlo_map[] = { 4, 5, 6, 6, 8, 8 };
+ static const u8 frq_wlo_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, */
+ 4, 5, 6, 6, 8, 8,
+ };
return frq_wlo_map[get_FRQ(tCK) - 3];
}
+/* Get CKE based on MC frequency */
static u8 get_CKE(u32 tCK)
{
- /* Get CKE based on MCU frequency using the following rule:
- * _______________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 |
- * CKE : | 3 | 3 | 4 | 4 | 5 | 6 |
- */
- static const u8 frq_cke_map[] = { 3, 3, 4, 4, 5, 6 };
+ static const u8 frq_cke_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, */
+ 3, 3, 4, 4, 5, 6,
+ };
return frq_cke_map[get_FRQ(tCK) - 3];
}
+/* Get XPDLL based on MC frequency */
static u8 get_XPDLL(u32 tCK)
{
- /* Get XPDLL based on MCU frequency using the following rule:
- * _____________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 |
- * XPDLL : | 10 | 13 | 16 | 20 | 23 | 26 |
- */
- static const u8 frq_xpdll_map[] = { 10, 13, 16, 20, 23, 26 };
+ static const u8 frq_xpdll_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, */
+ 10, 13, 16, 20, 23, 26,
+ };
return frq_xpdll_map[get_FRQ(tCK) - 3];
}
+/* Get XP based on MC frequency */
static u8 get_XP(u32 tCK)
{
- /* Get XP based on MCU frequency using the following rule:
- * _______________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 |
- * XP : | 3 | 4 | 4 | 5 | 6 | 7 |
- */
- static const u8 frq_xp_map[] = { 3, 4, 4, 5, 6, 7 };
+ static const u8 frq_xp_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, */
+ 3, 4, 4, 5, 6, 7,
+ };
return frq_xp_map[get_FRQ(tCK) - 3];
}
+/* Get AONPD based on MC frequency */
static u8 get_AONPD(u32 tCK)
{
- /* Get AONPD based on MCU frequency using the following rule:
- * ________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 |
- * AONPD : | 4 | 5 | 6 | 8 | 8 | 10 |
- */
- static const u8 frq_aonpd_map[] = { 4, 5, 6, 8, 8, 10 };
+ static const u8 frq_aonpd_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, */
+ 4, 5, 6, 8, 8, 10,
+ };
return frq_aonpd_map[get_FRQ(tCK) - 3];
}
+/* Get COMP2 based on MC frequency */
static u32 get_COMP2(u32 tCK)
{
- /* Get COMP2 based on MCU frequency using the following rule:
- * ___________________________________________________________
- * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 |
- * COMP : | D6BEDCC | CE7C34C | CA57A4C | C6369CC | C42514C | C21410C |
- */
- static const u32 frq_comp2_map[] = { 0xD6BEDCC, 0xCE7C34C, 0xCA57A4C,
- 0xC6369CC, 0xC42514C, 0xC21410C
+ static const u32 frq_comp2_map[] = {
+ /* FRQ: 3, 4, 5, 6, 7, 8, */
+ 0x0D6BEDCC, 0x0CE7C34C, 0x0CA57A4C, 0x0C6369CC, 0x0C42514C, 0x0C21410C,
};
return frq_comp2_map[get_FRQ(tCK) - 3];
}
@@ -154,21 +143,23 @@ static void snb_normalize_tclk(u32 *tclk)
static void find_cas_tck(ramctr_timing *ctrl)
{
u8 val;
- u32 val32;
/* Find CAS latency */
while (1) {
- /* Normalising tCK before computing clock could potentially
- * results in lower selected CAS, which is desired.
+ /*
+ * Normalising tCK before computing clock could potentially
+ * result in a lower selected CAS, which is desired.
*/
snb_normalize_tclk(&(ctrl->tCK));
if (!(ctrl->tCK))
die("Couldn't find compatible clock / CAS settings\n");
+
val = DIV_ROUND_UP(ctrl->tAA, ctrl->tCK);
printk(BIOS_DEBUG, "Trying CAS %u, tCK %u.\n", val, ctrl->tCK);
for (; val <= MAX_CAS; val++)
if ((ctrl->cas_supported >> (val - MIN_CAS)) & 1)
break;
+
if (val == (MAX_CAS + 1)) {
ctrl->tCK++;
continue;
@@ -178,18 +169,17 @@ static void find_cas_tck(ramctr_timing *ctrl)
}
}
- val32 = NS2MHZ_DIV256 / ctrl->tCK;
- printk(BIOS_DEBUG, "Selected DRAM frequency: %u MHz\n", val32);
-
+ printk(BIOS_DEBUG, "Selected DRAM frequency: %u MHz\n", NS2MHZ_DIV256 / ctrl->tCK);
printk(BIOS_DEBUG, "Selected CAS latency : %uT\n", val);
ctrl->CAS = val;
}
static void dram_timing(ramctr_timing *ctrl)
{
- /* Maximum supported DDR3 frequency is 1066MHz (DDR3 2133) so make sure
- * we cap it if we have faster DIMMs.
- * Then, align it to the closest JEDEC standard frequency */
+ /*
+ * On Sandy Bridge, the maximum supported DDR3 frequency is 1066MHz (DDR3 2133).
+ * Cap it for faster DIMMs, and align it to the closest JEDEC standard frequency.
+ */
if (ctrl->tCK == TCK_1066MHZ) {
ctrl->edge_offset[0] = 16;
ctrl->edge_offset[1] = 7;
@@ -198,6 +188,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 7;
ctrl->timC_offset[2] = 7;
ctrl->pi_coding_threshold = 13;
+
} else if (ctrl->tCK == TCK_933MHZ) {
ctrl->edge_offset[0] = 14;
ctrl->edge_offset[1] = 6;
@@ -206,6 +197,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 6;
ctrl->timC_offset[2] = 6;
ctrl->pi_coding_threshold = 15;
+
} else if (ctrl->tCK == TCK_800MHZ) {
ctrl->edge_offset[0] = 13;
ctrl->edge_offset[1] = 5;
@@ -214,6 +206,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 5;
ctrl->timC_offset[2] = 5;
ctrl->pi_coding_threshold = 15;
+
} else if (ctrl->tCK == TCK_666MHZ) {
ctrl->edge_offset[0] = 10;
ctrl->edge_offset[1] = 4;
@@ -222,6 +215,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 4;
ctrl->timC_offset[2] = 4;
ctrl->pi_coding_threshold = 16;
+
} else if (ctrl->tCK == TCK_533MHZ) {
ctrl->edge_offset[0] = 8;
ctrl->edge_offset[1] = 3;
@@ -230,6 +224,7 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->timC_offset[1] = 3;
ctrl->timC_offset[2] = 3;
ctrl->pi_coding_threshold = 17;
+
} else {
ctrl->tCK = TCK_400MHZ;
ctrl->edge_offset[0] = 6;
@@ -251,13 +246,14 @@ static void dram_timing(ramctr_timing *ctrl)
ctrl->CWL = DIV_ROUND_UP(ctrl->tCWL, ctrl->tCK);
else
ctrl->CWL = get_CWL(ctrl->tCK);
+
printk(BIOS_DEBUG, "Selected CWL latency : %uT\n", ctrl->CWL);
/* Find tRCD */
ctrl->tRCD = DIV_ROUND_UP(ctrl->tRCD, ctrl->tCK);
printk(BIOS_DEBUG, "Selected tRCD : %uT\n", ctrl->tRCD);
- ctrl->tRP = DIV_ROUND_UP(ctrl->tRP, ctrl->tCK);
+ ctrl->tRP = DIV_ROUND_UP(ctrl->tRP, ctrl->tCK);
printk(BIOS_DEBUG, "Selected tRP : %uT\n", ctrl->tRP);
/* Find tRAS */
@@ -265,7 +261,7 @@ static void dram_timing(ramctr_timing *ctrl)
printk(BIOS_DEBUG, "Selected tRAS : %uT\n", ctrl->tRAS);
/* Find tWR */
- ctrl->tWR = DIV_ROUND_UP(ctrl->tWR, ctrl->tCK);
+ ctrl->tWR = DIV_ROUND_UP(ctrl->tWR, ctrl->tCK);
printk(BIOS_DEBUG, "Selected tWR : %uT\n", ctrl->tWR);
/* Find tFAW */
@@ -285,25 +281,25 @@ static void dram_timing(ramctr_timing *ctrl)
printk(BIOS_DEBUG, "Selected tWTR : %uT\n", ctrl->tWTR);
/* Refresh-to-Active or Refresh-to-Refresh (tRFC) */
- ctrl->tRFC = DIV_ROUND_UP(ctrl->tRFC, ctrl->tCK - 1);
+ ctrl->tRFC = DIV_ROUND_UP(ctrl->tRFC, ctrl->tCK - 1); /* FIXME: Why the -1 ? */
printk(BIOS_DEBUG, "Selected tRFC : %uT\n", ctrl->tRFC);
- ctrl->tREFI = get_REFI(ctrl->tCK);
- ctrl->tMOD = get_MOD(ctrl->tCK);
+ ctrl->tREFI = get_REFI(ctrl->tCK);
+ ctrl->tMOD = get_MOD(ctrl->tCK);
ctrl->tXSOffset = get_XSOffset(ctrl->tCK);
- ctrl->tWLO = get_WLO(ctrl->tCK);
- ctrl->tCKE = get_CKE(ctrl->tCK);
- ctrl->tXPDLL = get_XPDLL(ctrl->tCK);
- ctrl->tXP = get_XP(ctrl->tCK);
- ctrl->tAONPD = get_AONPD(ctrl->tCK);
+ ctrl->tWLO = get_WLO(ctrl->tCK);
+ ctrl->tCKE = get_CKE(ctrl->tCK);
+ ctrl->tXPDLL = get_XPDLL(ctrl->tCK);
+ ctrl->tXP = get_XP(ctrl->tCK);
+ ctrl->tAONPD = get_AONPD(ctrl->tCK);
}
static void dram_freq(ramctr_timing *ctrl)
{
-
if (ctrl->tCK > TCK_400MHZ) {
- printk(BIOS_ERR, "DRAM frequency is under lowest supported "
- "frequency (400 MHz). Increasing to 400 MHz as last resort");
+ printk(BIOS_ERR,
+ "DRAM frequency is under lowest supported frequency (400 MHz). "
+ "Increasing to 400 MHz as last resort");
ctrl->tCK = TCK_400MHZ;
}
@@ -311,13 +307,15 @@ static void dram_freq(ramctr_timing *ctrl)
u8 val2;
u32 reg1 = 0;
+ /* Step 1 - Set target PCU frequency */
find_cas_tck(ctrl);
- /* Frequency multiplier. */
- u32 FRQ = get_FRQ(ctrl->tCK);
+ /* Frequency multiplier */
+ const u32 FRQ = get_FRQ(ctrl->tCK);
- /* The PLL will never lock if the required frequency is
- * already set. Exit early to prevent a system hang.
+ /*
+ * The PLL will never lock if the required frequency is already set.
+ * Exit early to prevent a system hang.
*/
reg1 = MCHBAR32(MC_BIOS_DATA);
val2 = (u8) reg1;
@@ -326,7 +324,7 @@ static void dram_freq(ramctr_timing *ctrl)
/* Step 1 - Select frequency in the MCU */
reg1 = FRQ;
- reg1 |= 0x80000000; // set running bit
+ reg1 |= 0x80000000; /* set running bit */
MCHBAR32(MC_BIOS_REQ) = reg1;
int i=0;
printk(BIOS_DEBUG, "PLL busy... ");
@@ -352,61 +350,57 @@ static void dram_freq(ramctr_timing *ctrl)
static void dram_ioregs(ramctr_timing *ctrl)
{
- u32 reg, comp2;
+ u32 reg;
int channel;
- // IO clock
+ /* IO clock */
FOR_ALL_CHANNELS {
MCHBAR32(GDCRCLKRANKSUSED_ch(channel)) = ctrl->rankmap[channel];
}
- // IO command
+ /* IO command */
FOR_ALL_CHANNELS {
MCHBAR32(GDCRCTLRANKSUSED_ch(channel)) = ctrl->rankmap[channel];
}
- // IO control
+ /* IO control */
FOR_ALL_POPULATED_CHANNELS {
program_timings(ctrl, channel);
}
- // Rcomp
+ /* Perform RCOMP */
printram("RCOMP...");
- reg = 0;
- while (reg == 0) {
- reg = MCHBAR32(RCOMP_TIMER) & 0x10000;
- }
+ while (!(MCHBAR32(RCOMP_TIMER) & (1 << 16)))
+ ;
+
printram("done\n");
- // Set comp2
- comp2 = get_COMP2(ctrl->tCK);
- MCHBAR32(CRCOMPOFST2) = comp2;
+ /* Set COMP2 */
+ MCHBAR32(CRCOMPOFST2) = get_COMP2(ctrl->tCK);
printram("COMP2 done\n");
- // Set comp1
+ /* Set COMP1 */
FOR_ALL_POPULATED_CHANNELS {
- reg = MCHBAR32(CRCOMPOFST1_ch(channel)); //ch0
- reg = (reg & ~0xe00) | (1 << 9); //odt
- reg = (reg & ~0xe00000) | (1 << 21); //clk drive up
- reg = (reg & ~0x38000000) | (1 << 27); //ctl drive up
+ reg = MCHBAR32(CRCOMPOFST1_ch(channel));
+ reg = (reg & ~0x00000e00) | (1 << 9); /* ODT */
+ reg = (reg & ~0x00e00000) | (1 << 21); /* clk drive up */
+ reg = (reg & ~0x38000000) | (1 << 27); /* ctl drive up */
MCHBAR32(CRCOMPOFST1_ch(channel)) = reg;
}
printram("COMP1 done\n");
printram("FORCE RCOMP and wait 20us...");
- MCHBAR32(M_COMP) |= 0x100;
+ MCHBAR32(M_COMP) |= (1 << 8);
udelay(20);
printram("done\n");
}
-int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot,
- int s3_resume, int me_uma_size)
+int try_init_dram_ddr3_snb(ramctr_timing *ctrl, int fast_boot, int s3_resume, int me_uma_size)
{
int err;
- printk(BIOS_DEBUG, "Starting SandyBridge RAM training (%d).\n",
- fast_boot);
+ printk(BIOS_DEBUG, "Starting SandyBridge RAM training (%d).\n", fast_boot);
if (!fast_boot) {
/* Find fastest common supported parameters */
@@ -415,7 +409,7 @@ int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot,
dram_dimm_mapping(ctrl);
}
- /* Set MCU frequency */
+ /* Set MC frequency */
dram_freq(ctrl);
if (!fast_boot) {
@@ -424,7 +418,7 @@ int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot,
}
/* Set version register */
- MCHBAR32(MRC_REVISION) = 0xC04EB002;
+ MCHBAR32(MRC_REVISION) = 0xc04eb002;
/* Enable crossover */
dram_xover(ctrl);
@@ -438,11 +432,11 @@ int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot,
/* Set scheduler chicken bits */
MCHBAR32(SCHED_CBIT) = 0x10100005;
- /* Set CPU specific register */
- set_4f8c();
+ /* Set up watermarks and starvation counter */
+ set_wmm_behavior();
/* Clear IO reset bit */
- MCHBAR32(MC_INIT_STATE_G) &= ~0x20;
+ MCHBAR32(MC_INIT_STATE_G) &= ~(1 << 5);
/* Set MAD-DIMM registers */
dram_dimm_set_mapping(ctrl);
@@ -464,7 +458,7 @@ int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot,
if (fast_boot) {
restore_timings(ctrl);
} else {
- /* Do jedec ddr3 reset sequence */
+ /* Do JEDEC DDR3 reset sequence */
dram_jedecreset(ctrl);
printk(BIOS_DEBUG, "Done jedec reset\n");
@@ -508,7 +502,7 @@ int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot,
normalize_training(ctrl);
}
- set_4008c(ctrl);
+ set_read_write_timings(ctrl);
write_controller_mr(ctrl);
diff --git a/src/northbridge/intel/sandybridge/romstage.c b/src/northbridge/intel/sandybridge/romstage.c
index 81049e55c4..ec44ee2c8a 100644
--- a/src/northbridge/intel/sandybridge/romstage.c
+++ b/src/northbridge/intel/sandybridge/romstage.c
@@ -39,20 +39,18 @@ static void early_pch_reset_pmcon(void)
{
u8 reg8;
- // reset rtc power status
+ /* Reset RTC power status */
reg8 = pci_read_config8(PCH_LPC_DEV, GEN_PMCON_3);
reg8 &= ~(1 << 2);
pci_write_config8(PCH_LPC_DEV, GEN_PMCON_3, reg8);
}
-/* Platform has no romstage entry point under mainboard directory,
- * so this one is named with prefix mainboard.
- */
+/* The romstage entry point for this platform is not mainboard-specific, hence the name */
void mainboard_romstage_entry(void)
{
int s3resume = 0;
- if (MCHBAR16(SSKPD) == 0xCAFE)
+ if (MCHBAR16(SSKPD_HI) == 0xCAFE)
system_reset();
enable_lapic();
@@ -60,14 +58,12 @@ void mainboard_romstage_entry(void)
/* Init LPC, GPIO, BARs, disable watchdog ... */
early_pch_init();
- /* USB is initialized in MRC if MRC is used. */
+ /* When using MRC, USB is initialized by MRC */
if (CONFIG(USE_NATIVE_RAMINIT)) {
early_usb_init(mainboard_usb_ports);
}
- /* Perform some early chipset initialization required
- * before RAM initialization can work
- */
+ /* Perform some early chipset init needed before RAM initialization can work */
systemagent_early_init();
printk(BIOS_DEBUG, "Back from systemagent_early_init()\n");
diff --git a/src/northbridge/intel/sandybridge/sandybridge.h b/src/northbridge/intel/sandybridge/sandybridge.h
index 0bbb6fc6d2..07d790430f 100644
--- a/src/northbridge/intel/sandybridge/sandybridge.h
+++ b/src/northbridge/intel/sandybridge/sandybridge.h
@@ -43,8 +43,8 @@
#define DEFAULT_EPBAR 0xfed19000 /* 4 KB */
#define DEFAULT_RCBABASE ((u8 *)0xfed1c000)
-#define IOMMU_BASE1 0xfed90000ULL
-#define IOMMU_BASE2 0xfed91000ULL
+#define GFXVT_BASE 0xfed90000ULL
+#define VTVC0_BASE 0xfed91000ULL
/* Everything below this line is ignored in the DSDT */
#ifndef __ACPI__
@@ -58,31 +58,32 @@ enum platform_type {
/* Device 0:0.0 PCI configuration space (Host Bridge) */
+#define HOST_BRIDGE PCI_DEV(0, 0, 0)
#define EPBAR 0x40
#define MCHBAR 0x48
-#define PCIEXBAR 0x60
-#define DMIBAR 0x68
-
-#define GGC 0x50 /* GMCH Graphics Control */
-#define DEVEN 0x54 /* Device Enable */
+#define GGC 0x50 /* GMCH Graphics Control */
+#define DEVEN 0x54 /* Device Enable */
#define DEVEN_D7EN (1 << 14)
#define DEVEN_PEG60 (1 << 13)
-#define DEVEN_D4EN (1 << 7)
-#define DEVEN_IGD (1 << 4)
-#define DEVEN_PEG10 (1 << 3)
-#define DEVEN_PEG11 (1 << 2)
-#define DEVEN_PEG12 (1 << 1)
-#define DEVEN_HOST (1 << 0)
+#define DEVEN_D4EN (1 << 7)
+#define DEVEN_IGD (1 << 4)
+#define DEVEN_PEG10 (1 << 3)
+#define DEVEN_PEG11 (1 << 2)
+#define DEVEN_PEG12 (1 << 1)
+#define DEVEN_HOST (1 << 0)
#define PAVPC 0x58 /* Protected Audio Video Path Control */
#define DPR 0x5c /* DMA Protected Range */
+#define PCIEXBAR 0x60
+#define DMIBAR 0x68
+
#define MESEG_BASE 0x70
#define MESEG_MASK 0x78
-#define MELCK (1 << 10) /* ME Range Lock */
-#define ME_STLEN_EN (1 << 11) /* ME Stolen Memory Enable */
+#define MELCK (1 << 10) /* ME Range Lock */
+#define ME_STLEN_EN (1 << 11) /* ME Stolen Memory Enable */
#define PAM0 0x80
#define PAM1 0x81
@@ -109,6 +110,13 @@ enum platform_type {
#define SKPAD 0xdc /* Scratchpad Data */
+#define DIDOR 0xf3 /* Device ID override, for debug and samples only */
+
+
+/* Devices 0:1.0, 0:1.1, 0:1.2, 0:6.0 PCI configuration space (PCI Express Graphics) */
+
+#define AFE_PWRON 0xc24 /* PEG Analog Front-End Power-On */
+
/* Device 0:2.0 PCI configuration space (Graphics Device) */
@@ -118,246 +126,27 @@ enum platform_type {
* MCHBAR
*/
-#define MCHBAR8(x) (*((volatile u8 *)(DEFAULT_MCHBAR + (x))))
+#define MCHBAR8(x) (*((volatile u8 *)(DEFAULT_MCHBAR + (x))))
#define MCHBAR16(x) (*((volatile u16 *)(DEFAULT_MCHBAR + (x))))
#define MCHBAR32(x) (*((volatile u32 *)(DEFAULT_MCHBAR + (x))))
-#define MCHBAR32_OR(x, or) (MCHBAR32(x) = (MCHBAR32(x) | (or)))
-#define MCHBAR32_AND(x, and) (MCHBAR32(x) = (MCHBAR32(x) & (and)))
+#define MCHBAR8_AND(x, and) (MCHBAR8(x) = MCHBAR8(x) & (and))
+#define MCHBAR16_AND(x, and) (MCHBAR16(x) = MCHBAR16(x) & (and))
+#define MCHBAR32_AND(x, and) (MCHBAR32(x) = MCHBAR32(x) & (and))
+#define MCHBAR8_OR(x, or) (MCHBAR8(x) = MCHBAR8(x) | (or))
+#define MCHBAR16_OR(x, or) (MCHBAR16(x) = MCHBAR16(x) | (or))
+#define MCHBAR32_OR(x, or) (MCHBAR32(x) = MCHBAR32(x) | (or))
+#define MCHBAR8_AND_OR(x, and, or) (MCHBAR8(x) = (MCHBAR8(x) & (and)) | (or))
+#define MCHBAR16_AND_OR(x, and, or) (MCHBAR16(x) = (MCHBAR16(x) & (and)) | (or))
#define MCHBAR32_AND_OR(x, and, or) (MCHBAR32(x) = (MCHBAR32(x) & (and)) | (or))
-/* Indexed register helper macros */
-#define Gz(r, z) ((r) + ((z) << 8))
-#define Ly(r, y) ((r) + ((y) << 2))
-#define Cx(r, x) ((r) + ((x) << 10))
-#define CxLy(r, x, y) ((r) + ((x) << 10) + ((y) << 2))
-#define GzLy(r, z, y) ((r) + ((z) << 8) + ((y) << 2))
-
-/* byte lane training register base addresses */
-#define LANEBASE_B0 0x0000
-#define LANEBASE_B1 0x0200
-#define LANEBASE_B2 0x0400
-#define LANEBASE_B3 0x0600
-#define LANEBASE_ECC 0x0800 /* ECC lane is in the middle of the data lanes */
-#define LANEBASE_B4 0x1000
-#define LANEBASE_B5 0x1200
-#define LANEBASE_B6 0x1400
-#define LANEBASE_B7 0x1600
-
-/* byte lane register offsets */
-#define GDCRTRAININGRESULT(ch, y) GzLy(0x0004, ch, y) /* Test results for PI config */
-#define GDCRTRAININGRESULT1(ch) GDCRTRAININGRESULT(ch, 0) /* 0x0004 */
-#define GDCRTRAININGRESULT2(ch) GDCRTRAININGRESULT(ch, 1) /* 0x0008 */
-#define GDCRRX(ch, rank) GzLy(0x10, ch, rank) /* Time setting for lane Rx */
-#define GDCRTX(ch, rank) GzLy(0x20, ch, rank) /* Time setting for lane Tx */
-
-/* Register definitions */
-#define GDCRCLKRANKSUSED_ch(ch) Gz(0x0c00, ch) /* Indicates which rank is populated */
-#define GDCRCLKCOMP_ch(ch) Gz(0x0c04, ch) /* RCOMP result register */
-#define GDCRCKPICODE_ch(ch) Gz(0x0c14, ch) /* PI coding for DDR CLK pins */
-#define GDCRCKLOGICDELAY_ch(ch) Gz(0x0c18, ch) /* Logic delay of 1 QCLK in CLK slice */
-#define GDDLLFUSE_ch(ch) Gz(0x0c20, ch) /* Used for fuse download to the DLLs */
-#define GDCRCLKDEBUGMUXCFG_ch(ch) Gz(0x0c3c, ch) /* Debug MUX control */
-
-#define GDCRCMDDEBUGMUXCFG_Cz_S(ch) Gz(0x0e3c, ch) /* Debug MUX control */
-
-#define CRCOMPOFST1_ch(ch) Gz(0x1810, ch) /* DQ, CTL and CLK Offset values */
-
-#define GDCRTRAININGMOD_ch(ch) Gz(0x3000, ch) /* Data training mode control */
-#define GDCRTRAININGRESULT1_ch(ch) Gz(0x3004, ch) /* Training results according to PI */
-#define GDCRTRAININGRESULT2_ch(ch) Gz(0x3008, ch)
-
-#define GDCRCTLRANKSUSED_ch(ch) Gz(0x3200, ch) /* Indicates which rank is populated */
-#define GDCRCMDCOMP_ch(ch) Gz(0x3204, ch) /* COMP values register */
-#define GDCRCMDCTLCOMP_ch(ch) Gz(0x3208, ch) /* COMP values register */
-#define GDCRCMDPICODING_ch(ch) Gz(0x320c, ch) /* Command and control PI coding */
-
-#define GDCRTRAININGMOD 0x3400 /* Data training mode control register */
-#define GDCRDATACOMP 0x340c /* COMP values register */
-
-#define CRCOMPOFST2 0x3714 /* CMD DRV, SComp and Static Leg controls */
-
-/* MC per-channel registers */
-#define TC_DBP_ch(ch) Cx(0x4000, ch) /* Timings: BIN */
-#define TC_RAP_ch(ch) Cx(0x4004, ch) /* Timings: Regular access */
-#define TC_RWP_ch(ch) Cx(0x4008, ch) /* Timings: Read / Write */
-#define TC_OTHP_ch(ch) Cx(0x400c, ch) /* Timings: Other parameters */
-#define SCHED_SECOND_CBIT_ch(ch) Cx(0x401c, ch) /* More chicken bits */
-#define SCHED_CBIT_ch(ch) Cx(0x4020, ch) /* Chicken bits in scheduler */
-#define SC_ROUNDT_LAT_ch(ch) Cx(0x4024, ch) /* Round-trip latency per rank */
-#define SC_IO_LATENCY_ch(ch) Cx(0x4028, ch) /* IO Latency Configuration */
-#define SCRAMBLING_SEED_1_ch(ch) Cx(0x4034, ch) /* Scrambling seed 1 */
-#define SCRAMBLING_SEED_2_LOW_ch(ch) Cx(0x4038, ch) /* Scrambling seed 2 low */
-#define SCRAMBLING_SEED_2_HIGH_ch(ch) Cx(0x403c, ch) /* Scrambling seed 2 high */
-
-/* IOSAV Bytelane Bit-wise error */
-#define IOSAV_By_BW_SERROR_ch(ch, y) CxLy(0x4040, ch, y)
-
-/* IOSAV Bytelane Bit-wise compare mask */
-#define IOSAV_By_BW_MASK_ch(ch, y) CxLy(0x4080, ch, y)
-
-/*
- * Defines the number of transactions (non-VC1 RD CAS commands) between two priority ticks.
- * Different counters for transactions that are issued on the ring agents (core or GT) and
- * transactions issued in the SA.
- */
-#define SC_PR_CNT_CONFIG_ch(ch) Cx(0x40a8, ch)
-#define SC_PCIT_ch(ch) Cx(0x40ac, ch) /* Page-close idle timer setup - 8 bits */
-#define PM_PDWN_CONFIG_ch(ch) Cx(0x40b0, ch) /* Power-down (CKE-off) operation config */
-#define ECC_INJECT_COUNT_ch(ch) Cx(0x40b4, ch) /* ECC error injection count */
-#define ECC_DFT_ch(ch) Cx(0x40b8, ch) /* ECC DFT features (ECC4ANA, error inject) */
-#define SC_WR_ADD_DELAY_ch(ch) Cx(0x40d0, ch) /* Extra WR delay to overcome WR-flyby issue */
-
-#define IOSAV_By_BW_SERROR_C_ch(ch, y) CxLy(0x4140, ch, y) /* IOSAV Bytelane Bit-wise error */
-
-/* IOSAV sub-sequence control registers */
-#define IOSAV_n_SP_CMD_ADDR_ch(ch, y) CxLy(0x4200, ch, y) /* Special command address. */
-#define IOSAV_n_ADDR_UPD_ch(ch, y) CxLy(0x4210, ch, y) /* Address update control */
-#define IOSAV_n_SP_CMD_CTL_ch(ch, y) CxLy(0x4220, ch, y) /* Control of command signals */
-#define IOSAV_n_SUBSEQ_CTL_ch(ch, y) CxLy(0x4230, ch, y) /* Sub-sequence controls */
-#define IOSAV_n_ADDRESS_LFSR_ch(ch, y) CxLy(0x4240, ch, y) /* 23-bit LFSR state value */
-
-#define PM_THML_STAT_ch(ch) Cx(0x4280, ch) /* Thermal status of each rank */
-#define IOSAV_SEQ_CTL_ch(ch) Cx(0x4284, ch) /* IOSAV sequence level control */
-#define IOSAV_DATA_CTL_ch(ch) Cx(0x4288, ch) /* Data control in IOSAV mode */
-#define IOSAV_STATUS_ch(ch) Cx(0x428c, ch) /* State of the IOSAV sequence machine */
-#define TC_ZQCAL_ch(ch) Cx(0x4290, ch) /* ZQCAL control register */
-#define TC_RFP_ch(ch) Cx(0x4294, ch) /* Refresh Parameters */
-#define TC_RFTP_ch(ch) Cx(0x4298, ch) /* Refresh Timing Parameters */
-#define TC_MR2_SHADOW_ch(ch) Cx(0x429c, ch) /* MR2 shadow - copy of DDR configuration */
-#define MC_INIT_STATE_ch(ch) Cx(0x42a0, ch) /* IOSAV mode control */
-#define TC_SRFTP_ch(ch) Cx(0x42a4, ch) /* Self-refresh timing parameters */
-#define IOSAV_ERROR_ch(ch) Cx(0x42ac, ch) /* Data vector count of the first error */
-#define IOSAV_DC_MASK_ch(ch) Cx(0x42b0, ch) /* IOSAV data check masking */
-
-#define IOSAV_By_ERROR_COUNT_ch(ch, y) CxLy(0x4340, ch, y) /* Per-byte 16-bit error count */
-#define IOSAV_G_ERROR_COUNT_ch(ch) Cx(0x4364, ch) /* Global 16-bit error count */
-
-#define PM_TRML_M_CONFIG_ch(ch) Cx(0x4380, ch) /* Thermal mode configuration */
-#define PM_CMD_PWR_ch(ch) Cx(0x4384, ch) /* Power contribution of commands */
-#define PM_BW_LIMIT_CONFIG_ch(ch) Cx(0x4388, ch) /* Bandwidth throttling on overtemp */
-#define SC_WDBWM_ch(ch) Cx(0x438c, ch) /* Watermarks and starvation counter */
-
-/* MC Channel Broadcast registers */
-#define TC_DBP 0x4c00 /* Timings: BIN */
-#define TC_RAP 0x4c04 /* Timings: Regular access */
-#define TC_RWP 0x4c08 /* Timings: Read / Write */
-#define TC_OTHP 0x4c0c /* Timings: Other parameters */
-#define SCHED_SECOND_CBIT 0x4c1c /* More chicken bits */
-#define SCHED_CBIT 0x4c20 /* Chicken bits in scheduler */
-#define SC_ROUNDT_LAT 0x4c24 /* Round-trip latency per rank */
-#define SC_IO_LATENCY 0x4c28 /* IO Latency Configuration */
-#define SCRAMBLING_SEED_1 0x4c34 /* Scrambling seed 1 */
-#define SCRAMBLING_SEED_2_LOW 0x4c38 /* Scrambling seed 2 low */
-#define SCRAMBLING_SEED_2_HIGH 0x4c3c /* Scrambling seed 2 high */
-
-#define IOSAV_By_BW_SERROR(y) Ly(0x4c40, y) /* IOSAV Bytelane Bit-wise error */
-#define IOSAV_By_BW_MASK(y) Ly(0x4c80, y) /* IOSAV Bytelane Bit-wise compare mask */
-
-/*
- * Defines the number of transactions (non-VC1 RD CAS commands) between two priority ticks.
- * Different counters for transactions that are issued on the ring agents (core or GT) and
- * transactions issued in the SA.
- */
-#define SC_PR_CNT_CONFIG 0x4ca8
-#define SC_PCIT 0x4cac /* Page-close idle timer setup - 8 bits */
-#define PM_PDWN_CONFIG 0x4cb0 /* Power-down (CKE-off) operation config */
-#define ECC_INJECT_COUNT 0x4cb4 /* ECC error injection count */
-#define ECC_DFT 0x4cb8 /* ECC DFT features (ECC4ANA, error inject) */
-#define SC_WR_ADD_DELAY 0x4cd0 /* Extra WR delay to overcome WR-flyby issue */
-
-/* Opportunistic reads configuration during write-major-mode (WMM) */
-#define WMM_READ_CONFIG 0x4cd4 /** WARNING: Only exists on IVB! */
-
-#define IOSAV_By_BW_SERROR_C(y) Ly(0x4d40, y) /* IOSAV Bytelane Bit-wise error */
-
-#define IOSAV_n_SP_CMD_ADDR(n) Ly(0x4e00, n) /* Sub-sequence special command address */
-#define IOSAV_n_ADDR_UPD(n) Ly(0x4e10, n) /* Address update after command execution */
-#define IOSAV_n_SP_CMD_CTL(n) Ly(0x4e20, n) /* Command signals in sub-sequence command */
-#define IOSAV_n_SUBSEQ_CTL(n) Ly(0x4e30, n) /* Sub-sequence command parameter control */
-#define IOSAV_n_ADDRESS_LFSR(n) Ly(0x4e40, n) /* 23-bit LFSR value of the sequence */
-
-#define PM_THML_STAT 0x4e80 /* Thermal status of each rank */
-#define IOSAV_SEQ_CTL 0x4e84 /* IOSAV sequence level control */
-#define IOSAV_DATA_CTL 0x4e88 /* Data control in IOSAV mode */
-#define IOSAV_STATUS 0x4e8c /* State of the IOSAV sequence machine */
-#define TC_ZQCAL 0x4e90 /* ZQCAL control register */
-#define TC_RFP 0x4e94 /* Refresh Parameters */
-#define TC_RFTP 0x4e98 /* Refresh Timing Parameters */
-#define TC_MR2_SHADOW 0x4e9c /* MR2 shadow - copy of DDR configuration */
-#define MC_INIT_STATE 0x4ea0 /* IOSAV mode control */
-#define TC_SRFTP 0x4ea4 /* Self-refresh timing parameters */
-
-/*
- * Auxiliary register in mcmnts synthesis FUB (Functional Unit Block). Additionally, this
- * register is also used to enable IOSAV_n_SP_CMD_ADDR optimization on Ivy Bridge.
- */
-#define MCMNTS_SPARE 0x4ea8 /** WARNING: Reserved, use only on IVB! */
-
-#define IOSAV_ERROR 0x4eac /* Data vector count of the first error */
-#define IOSAV_DC_MASK 0x4eb0 /* IOSAV data check masking */
-
-#define IOSAV_By_ERROR_COUNT(y) Ly(0x4f40, y) /* Per-byte 16-bit error counter */
-#define IOSAV_G_ERROR_COUNT 0x4f64 /* Global 16-bit error counter */
-
-#define PM_TRML_M_CONFIG 0x4f80 /* Thermal mode configuration */
-#define PM_CMD_PWR 0x4f84 /* Power contribution of commands */
-#define PM_BW_LIMIT_CONFIG 0x4f88 /* Bandwidth throttling on overtemperature */
-#define SC_WDBWM 0x4f8c /* Watermarks and starvation counter config */
-
-#define MAD_CHNL 0x5000 /* Address Decoder Channel Configuration */
-#define MAD_DIMM_CH0 0x5004 /* Address Decode Channel 0 */
-#define MAD_DIMM_CH1 0x5008 /* Address Decode Channel 1 */
-#define MAD_DIMM_CH2 0x500c /* Address Decode Channel 2 (unused on SNB) */
-#define MAD_ZR 0x5014 /* Address Decode Zones */
-#define MCDECS_SPARE 0x5018 /* Spare register in mcdecs synthesis FUB */
-#define MCDECS_CBIT 0x501c /* Chicken bits in mcdecs synthesis FUB */
-
-#define CHANNEL_HASH 0x5024 /** WARNING: Only exists on IVB! */
-
-#define MC_INIT_STATE_G 0x5030 /* High-level behavior in IOSAV mode */
-#define MRC_REVISION 0x5034 /* MRC Revision */
-#define PM_DLL_CONFIG 0x5064 /* Memory Controller I/O DLL config */
-#define RCOMP_TIMER 0x5084 /* RCOMP evaluation timer register */
-
-#define MC_LOCK 0x50fc /* Memory Controlller Lock register */
-
-#define VTD1_BASE 0x5400 /* Base address for IGD */
-#define VTD2_BASE 0x5410 /* Base address for PEG, USB, SATA, etc. */
-#define PAIR_CTL 0x5418 /* Power Aware Interrupt Routing Control */
-
-/* PAVP control register, undocumented. Different from PAVPC on PCI config space. */
-#define MMIO_PAVP_CTL 0x5500 /* Bit 0 locks PAVP settings */
-
-#define MEM_TRML_ESTIMATION_CONFIG 0x5880
-#define MEM_TRML_THRESHOLDS_CONFIG 0x5888
-#define MEM_TRML_INTERRUPT 0x58a8
-
-#define MC_TURBO_PL1 0x59a0 /* Turbo Power Limit 1 parameters */
-#define MC_TURBO_PL2 0x59a4 /* Turbo Power Limit 2 parameters */
-
-#define SSKPD_OK 0x5d10 /* 64-bit scratchpad register */
-#define SSKPD 0x5d14 /* 16bit (scratchpad) */
-#define BIOS_RESET_CPL 0x5da8 /* 8bit */
-
-/* PCODE will sample SAPM-related registers at the end of Phase 4. */
-#define MC_BIOS_REQ 0x5e00 /* Memory frequency request register */
-#define MC_BIOS_DATA 0x5e04 /* Miscellaneous information for BIOS */
-#define SAPMCTL 0x5f00 /* Bit 3 enables DDR EPG (C7i) on IVB */
-#define M_COMP 0x5f08 /* Memory COMP control */
-#define SAPMTIMERS 0x5f10 /* SAPM timers in 10ns (100 MHz) units */
-
-/* WARNING: Only applies to Sandy Bridge! */
-#define BANDTIMERS_SNB 0x5f18 /* MPLL and PPLL time to do self-banding */
-
-/** WARNING: Only applies to Ivy Bridge! */
-#define SAPMTIMERS2_IVB 0x5f18 /** Extra latency for DDRIO EPG exit (C7i) */
-#define BANDTIMERS_IVB 0x5f20 /** MPLL and PPLL time to do self-banding */
+/* As there are many registers, define them on a separate file */
+#include "mchbar_regs.h"
/*
* EPBAR - Egress Port Root Complex Register Block
*/
-#define EPBAR8(x) (*((volatile u8 *)(DEFAULT_EPBAR + (x))))
+#define EPBAR8(x) (*((volatile u8 *)(DEFAULT_EPBAR + (x))))
#define EPBAR16(x) (*((volatile u16 *)(DEFAULT_EPBAR + (x))))
#define EPBAR32(x) (*((volatile u32 *)(DEFAULT_EPBAR + (x))))
@@ -388,7 +177,7 @@ enum platform_type {
* DMIBAR
*/
-#define DMIBAR8(x) (*((volatile u8 *)(DEFAULT_DMIBAR + (x))))
+#define DMIBAR8(x) (*((volatile u8 *)(DEFAULT_DMIBAR + (x))))
#define DMIBAR16(x) (*((volatile u16 *)(DEFAULT_DMIBAR + (x))))
#define DMIBAR32(x) (*((volatile u32 *)(DEFAULT_DMIBAR + (x))))
@@ -436,7 +225,6 @@ enum platform_type {
#ifndef __ASSEMBLER__
void intel_sandybridge_finalize_smm(void);
-
int bridge_silicon_revision(void);
void systemagent_early_init(void);
void sandybridge_init_iommu(void);
@@ -444,8 +232,7 @@ void sandybridge_late_initialization(void);
void northbridge_romstage_finalize(int s3resume);
void early_init_dmi(void);
-/* mainboard_early_init: Optional mainboard callback run after console init
- but before raminit. */
+/* mainboard_early_init: Optional callback, run after console init but before raminit. */
void mainboard_early_init(int s3resume);
int mainboard_should_reset_usb(int s3resume);
void perform_raminit(int s3resume);
@@ -454,7 +241,8 @@ enum platform_type get_platform_type(void);
#include <device/device.h>
struct acpi_rsdp;
-unsigned long northbridge_write_acpi_tables(struct device *device, unsigned long start, struct acpi_rsdp *rsdp);
+unsigned long northbridge_write_acpi_tables(struct device *device, unsigned long start,
+ struct acpi_rsdp *rsdp);
#endif
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 02:52:29 +0000