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Diffstat (limited to 'src/northbridge/intel/i945')
-rw-r--r--src/northbridge/intel/i945/early_init.c112
-rw-r--r--src/northbridge/intel/i945/gma.c13
-rw-r--r--src/northbridge/intel/i945/raminit.c33
3 files changed, 39 insertions, 119 deletions
diff --git a/src/northbridge/intel/i945/early_init.c b/src/northbridge/intel/i945/early_init.c
index 749eb3e9cd..f388330f94 100644
--- a/src/northbridge/intel/i945/early_init.c
+++ b/src/northbridge/intel/i945/early_init.c
@@ -158,10 +158,7 @@ static void i945_setup_bars(void)
pci_write_config16(PCI_DEV(0, 0x00, 0), GGC, ((gfxsize + 1) << 4));
/* TSEG 2M, This amount can easily be covered by SMRR MTRR's,
which requires to have TSEG_BASE aligned to TSEG_SIZE. */
- reg8 = pci_read_config8(PCI_DEV(0, 0, 0), ESMRAMC);
- reg8 &= ~0x7;
- reg8 |= (1 << 1) | (1 << 0); /* 2M and TSEG_Enable */
- pci_write_config8(PCI_DEV(0, 0, 0), ESMRAMC, reg8);
+ pci_update_config8(PCI_DEV(0, 0, 0), ESMRAMC, ~0x07, (1 << 1) | (1 << 0));
/* Set C0000-FFFFF to access RAM on both reads and writes */
pci_write_config8(PCI_DEV(0, 0x00, 0), PAM0, 0x30);
@@ -505,13 +502,9 @@ static void i945_setup_pci_express_x16(void)
printk(BIOS_DEBUG, "Enabling PCI Express x16 Link\n");
- reg16 = pci_read_config16(PCI_DEV(0, 0x00, 0), DEVEN);
- reg16 |= DEVEN_D1F0;
- pci_write_config16(PCI_DEV(0, 0x00, 0), DEVEN, reg16);
+ pci_or_config16(PCI_DEV(0, 0x00, 0), DEVEN, DEVEN_D1F0);
- reg32 = pci_read_config32(p2peg, PEGCC);
- reg32 &= ~(1 << 8);
- pci_write_config32(p2peg, PEGCC, reg32);
+ pci_and_config32(p2peg, PEGCC, ~(1 << 8));
/* We have no success with querying the usual PCIe registers
* for link setup success on the i945. Hence we assign a temporary
@@ -531,16 +524,12 @@ static void i945_setup_pci_express_x16(void)
pci_s_bridge_set_secondary(p2peg, tmp_secondary);
- reg32 = pci_read_config32(p2peg, 0x224);
- reg32 &= ~(1 << 8);
- pci_write_config32(p2peg, 0x224, reg32);
+ pci_and_config32(p2peg, 0x224, ~(1 << 8));
MCHBAR16(UPMC1) &= ~((1 << 5) | (1 << 0));
/* Initialize PEG_CAP */
- reg16 = pci_read_config16(p2peg, PEG_CAP);
- reg16 |= (1 << 8);
- pci_write_config16(p2peg, PEG_CAP, reg16);
+ pci_or_config16(p2peg, PEG_CAP, 1 << 8);
/* Setup SLOTCAP */
/* TODO: These values are mainboard dependent and should be set from devicetree.cb.
@@ -556,8 +545,7 @@ static void i945_setup_pci_express_x16(void)
/* Wait for training to succeed */
printk(BIOS_DEBUG, "PCIe link training ...");
timeout = 0x7ffff;
- while ((((pci_read_config32(p2peg, PEGSTS) >> 16) & 3) != 3)
- && --timeout)
+ while ((((pci_read_config32(p2peg, PEGSTS) >> 16) & 3) != 3) && --timeout)
;
reg32 = pci_read_config32(peg_plugin, PCI_VENDOR_ID);
@@ -569,10 +557,7 @@ static void i945_setup_pci_express_x16(void)
printk(BIOS_DEBUG, "Restrain PCIe port to x1\n");
- reg32 = pci_read_config32(p2peg, PEGSTS);
- reg32 &= ~(0xf << 1);
- reg32 |= 1;
- pci_write_config32(p2peg, PEGSTS, reg32);
+ pci_update_config32(p2peg, PEGSTS, ~(0xf << 1), 1);
/* Force PCIRST# */
pci_s_assert_secondary_reset(p2peg);
@@ -580,8 +565,7 @@ static void i945_setup_pci_express_x16(void)
printk(BIOS_DEBUG, "PCIe link training ...");
timeout = 0x7ffff;
- while ((((pci_read_config32(p2peg, PEGSTS) >> 16) & 3) != 3)
- && --timeout)
+ while ((((pci_read_config32(p2peg, PEGSTS) >> 16) & 3) != 3) && --timeout)
;
reg32 = pci_read_config32(peg_plugin, PCI_VENDOR_ID);
@@ -619,25 +603,17 @@ static void i945_setup_pci_express_x16(void)
reg16 = (1 << 1);
pci_write_config16(PCI_DEV(0, 0x0, 0), GGC, reg16);
- reg32 = pci_read_config32(PCI_DEV(0, 0x0, 0), DEVEN);
- reg32 &= ~(DEVEN_D2F0 | DEVEN_D2F1);
- pci_write_config32(PCI_DEV(0, 0x0, 0), DEVEN, reg32);
+ pci_and_config32(PCI_DEV(0, 0x0, 0), DEVEN, ~(DEVEN_D2F0 | DEVEN_D2F1));
}
- /* Enable GPEs */
- reg32 = pci_read_config32(p2peg, PEG_LC);
- reg32 |= (1 << 2) | (1 << 1) | (1 << 0); /* PMEGPE, HPGPE, GENGPE */
- pci_write_config32(p2peg, PEG_LC, reg32);
+ /* Enable GPEs: PMEGPE, HPGPE, GENGPE */
+ pci_or_config32(p2peg, PEG_LC, (1 << 2) | (1 << 1) | (1 << 0));
/* Virtual Channel Configuration: Only VC0 on PCIe x16 */
- reg32 = pci_read_config32(p2peg, VC0RCTL);
- reg32 &= 0xffffff01;
- pci_write_config32(p2peg, VC0RCTL, reg32);
+ pci_and_config32(p2peg, VC0RCTL, ~0x000000fe);
/* Extended VC count */
- reg32 = pci_read_config32(p2peg, PVCCAP1);
- reg32 &= ~(7 << 0);
- pci_write_config32(p2peg, PVCCAP1, reg32);
+ pci_and_config32(p2peg, PVCCAP1, ~(7 << 0));
/* Active State Power Management ASPM */
@@ -653,35 +629,17 @@ static void i945_setup_pci_express_x16(void)
pci_write_config32(p2peg, 0x228, 0xffffffff);
/* Program R/WO registers */
- reg32 = pci_read_config32(p2peg, 0x308);
- pci_write_config32(p2peg, 0x308, reg32);
-
- reg32 = pci_read_config32(p2peg, 0x314);
- pci_write_config32(p2peg, 0x314, reg32);
-
- reg32 = pci_read_config32(p2peg, 0x324);
- pci_write_config32(p2peg, 0x324, reg32);
-
- reg32 = pci_read_config32(p2peg, 0x328);
- pci_write_config32(p2peg, 0x328, reg32);
+ pci_update_config32(p2peg, 0x308, ~0, 0);
+ pci_update_config32(p2peg, 0x314, ~0, 0);
+ pci_update_config32(p2peg, 0x324, ~0, 0);
+ pci_update_config32(p2peg, 0x328, ~0, 0);
/* Additional PCIe graphics setup */
- reg32 = pci_read_config32(p2peg, 0xf0);
- reg32 |= (3 << 26);
- pci_write_config32(p2peg, 0xf0, reg32);
-
- reg32 = pci_read_config32(p2peg, 0xf0);
- reg32 |= (3 << 24);
- pci_write_config32(p2peg, 0xf0, reg32);
+ pci_or_config32(p2peg, 0xf0, 3 << 26);
+ pci_or_config32(p2peg, 0xf0, 3 << 24);
+ pci_or_config32(p2peg, 0xf0, 1 << 5);
- reg32 = pci_read_config32(p2peg, 0xf0);
- reg32 |= (1 << 5);
- pci_write_config32(p2peg, 0xf0, reg32);
-
- reg32 = pci_read_config32(p2peg, 0x200);
- reg32 &= ~(3 << 26);
- reg32 |= (2 << 26);
- pci_write_config32(p2peg, 0x200, reg32);
+ pci_update_config32(p2peg, 0x200, ~(3 << 26), 2 << 26);
reg32 = pci_read_config32(p2peg, 0xe80);
if (i945_silicon_revision() >= 2)
@@ -690,13 +648,9 @@ static void i945_setup_pci_express_x16(void)
reg32 &= ~(1 << 12);
pci_write_config32(p2peg, 0xe80, reg32);
- reg32 = pci_read_config32(p2peg, 0xeb4);
- reg32 &= ~(1 << 31);
- pci_write_config32(p2peg, 0xeb4, reg32);
+ pci_and_config32(p2peg, 0xeb4, ~(1 << 31));
- reg32 = pci_read_config32(p2peg, 0xfc);
- reg32 |= (1 << 31);
- pci_write_config32(p2peg, 0xfc, reg32);
+ pci_or_config32(p2peg, 0xfc, 1 << 31);
if (i945_silicon_revision() >= 3) {
static const u32 reglist[] = {
@@ -705,12 +659,8 @@ static void i945_setup_pci_express_x16(void)
};
int i;
- for (i = 0; i < ARRAY_SIZE(reglist); i++) {
- reg32 = pci_read_config32(p2peg, reglist[i]);
- reg32 &= 0x0fffffff;
- reg32 |= (2 << 28);
- pci_write_config32(p2peg, reglist[i], reg32);
- }
+ for (i = 0; i < ARRAY_SIZE(reglist); i++)
+ pci_update_config32(p2peg, reglist[i], ~(0xf << 28), 2 << 28);
}
if (i945_silicon_revision() <= 2) {
@@ -734,9 +684,7 @@ disable_pciexpress_x16_link:
/* Toggle PCIRST# */
pci_s_assert_secondary_reset(p2peg);
- reg32 = pci_read_config32(p2peg, 0x224);
- reg32 |= (1 << 8);
- pci_write_config32(p2peg, 0x224, reg32);
+ pci_or_config32(p2peg, 0x224, 1 << 8);
pci_s_deassert_secondary_reset(p2peg);
@@ -751,9 +699,7 @@ disable_pciexpress_x16_link:
printk(BIOS_DEBUG, "ok\n");
/* Finally: Disable the PCI config header */
- reg16 = pci_read_config16(PCI_DEV(0, 0x00, 0), DEVEN);
- reg16 &= ~DEVEN_D1F0;
- pci_write_config16(PCI_DEV(0, 0x00, 0), DEVEN, reg16);
+ pci_and_config16(PCI_DEV(0, 0x00, 0), DEVEN, ~DEVEN_D1F0);
}
static void i945_setup_root_complex_topology(void)
@@ -795,9 +741,7 @@ static void i945_setup_root_complex_topology(void)
/* PCI Express x16 Port Root Topology */
if (pci_read_config8(PCI_DEV(0, 0x00, 0), DEVEN) & DEVEN_D1F0) {
pci_write_config32(p2peg, LE1A, DEFAULT_EPBAR);
- reg32 = pci_read_config32(p2peg, LE1D);
- reg32 |= (1 << 0);
- pci_write_config32(p2peg, LE1D, reg32);
+ pci_or_config32(p2peg, LE1D, 1 << 0);
}
}
diff --git a/src/northbridge/intel/i945/gma.c b/src/northbridge/intel/i945/gma.c
index 34d129d502..929968e384 100644
--- a/src/northbridge/intel/i945/gma.c
+++ b/src/northbridge/intel/i945/gma.c
@@ -701,9 +701,7 @@ static void gma_func0_disable(struct device *dev)
pci_write_config16(dev, GCFC, 0xa00);
pci_write_config16(dev_host, GGC, (1 << 1));
- unsigned int reg32 = pci_read_config32(dev_host, DEVEN);
- reg32 &= ~(DEVEN_D2F0 | DEVEN_D2F1);
- pci_write_config32(dev_host, DEVEN, reg32);
+ pci_and_config32(dev_host, DEVEN, ~(DEVEN_D2F0 | DEVEN_D2F1));
dev->enabled = 0;
}
@@ -730,13 +728,8 @@ static void gma_generate_ssdt(const struct device *device)
static void gma_func0_read_resources(struct device *dev)
{
- u8 reg8;
-
- /* Set Untrusted Aperture Size to 256mb */
- reg8 = pci_read_config8(dev, MSAC);
- reg8 &= ~0x3;
- reg8 |= 0x2;
- pci_write_config8(dev, MSAC, reg8);
+ /* Set Untrusted Aperture Size to 256MB */
+ pci_update_config8(dev, MSAC, ~0x3, 0x2);
pci_dev_read_resources(dev);
}
diff --git a/src/northbridge/intel/i945/raminit.c b/src/northbridge/intel/i945/raminit.c
index 4e3509eb98..b5444d18d7 100644
--- a/src/northbridge/intel/i945/raminit.c
+++ b/src/northbridge/intel/i945/raminit.c
@@ -257,9 +257,7 @@ static void sdram_detect_errors(struct sys_info *sysinfo)
}
/* Set DRAM initialization bit in ICH7 */
- reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2);
- reg8 |= (1<<7);
- pci_write_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2, reg8);
+ pci_or_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2, 1 << 7);
/* clear self refresh status if check is disabled or not a resume */
if (!CONFIG(CHECK_SLFRCS_ON_RESUME) || sysinfo->boot_path != BOOT_PATH_RESUME) {
@@ -1615,7 +1613,6 @@ static void sdram_program_pll_settings(struct sys_info *sysinfo)
static void sdram_program_graphics_frequency(struct sys_info *sysinfo)
{
u8 reg8;
- u16 reg16;
u8 freq, second_vco, voltage;
#define CRCLK_166MHz 0x00
@@ -1716,14 +1713,11 @@ static void sdram_program_graphics_frequency(struct sys_info *sysinfo)
sysinfo->clkcfg_bit7 = 0;
/* Graphics Core Render Clock */
- reg16 = pci_read_config16(PCI_DEV(0, 2, 0), GCFC);
- reg16 &= ~((7 << 0) | (1 << 13));
- reg16 |= freq;
- pci_write_config16(PCI_DEV(0, 2, 0), GCFC, reg16);
+ pci_update_config16(PCI_DEV(0, 2, 0), GCFC, ~((7 << 0) | (1 << 13)), freq);
/* Graphics Core Display Clock */
reg8 = pci_read_config8(PCI_DEV(0, 2, 0), GCFC);
- reg8 &= ~((1<<7) | (7<<4));
+ reg8 &= ~((1 << 7) | (7 << 4));
if (voltage == VOLTAGE_1_05) {
reg8 |= CDCLK_200MHz;
@@ -1736,7 +1730,7 @@ static void sdram_program_graphics_frequency(struct sys_info *sysinfo)
reg8 = pci_read_config8(PCI_DEV(0, 2, 0), GCFC + 1);
- reg8 |= (1<<3) | (1<<1);
+ reg8 |= (1 << 3) | (1 << 1);
pci_write_config8(PCI_DEV(0, 2, 0), GCFC + 1, reg8);
reg8 |= 0x0f;
@@ -1750,7 +1744,6 @@ static void sdram_program_graphics_frequency(struct sys_info *sysinfo)
static void sdram_program_memory_frequency(struct sys_info *sysinfo)
{
u32 clkcfg;
- u8 reg8;
u8 offset = CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GM) ? 1 : 0;
printk(BIOS_DEBUG, "Setting Memory Frequency... ");
@@ -1795,9 +1788,7 @@ static void sdram_program_memory_frequency(struct sys_info *sysinfo)
/* Make sure the following code is in the cache before we execute it. */
goto cache_code;
vco_update:
- reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2);
- reg8 &= ~(1 << 7);
- pci_write_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2, reg8);
+ pci_and_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2, (u8)~(1 << 7));
clkcfg &= ~(1 << 10);
MCHBAR32(CLKCFG) = clkcfg;
@@ -2142,7 +2133,6 @@ static void sdram_post_jedec_initialization(struct sys_info *sysinfo)
static void sdram_power_management(struct sys_info *sysinfo)
{
- u8 reg8;
u16 reg16;
u32 reg32;
int integrated_graphics = 1;
@@ -2293,13 +2283,9 @@ static void sdram_power_management(struct sys_info *sysinfo)
MCHBAR32(FSBPMC4) |= (1 << 4);
}
- reg8 = pci_read_config8(PCI_DEV(0, 0x0, 0), 0xfc);
- reg8 |= (1 << 4);
- pci_write_config8(PCI_DEV(0, 0x0, 0), 0xfc, reg8);
+ pci_or_config8(PCI_DEV(0, 0x0, 0), 0xfc, 1 << 4);
- reg8 = pci_read_config8(PCI_DEV(0, 0x2, 0), 0xc1);
- reg8 |= (1 << 2);
- pci_write_config8(PCI_DEV(0, 0x2, 0), 0xc1, reg8);
+ pci_or_config8(PCI_DEV(0, 0x2, 0), 0xc1, 1 << 2);
#ifdef C2_SELF_REFRESH_DISABLE
@@ -2729,7 +2715,6 @@ static void sdram_setup_processor_side(void)
void sdram_initialize(int boot_path, const u8 *spd_addresses)
{
struct sys_info sysinfo;
- u8 reg8;
timestamp_add_now(TS_BEFORE_INITRAM);
printk(BIOS_DEBUG, "Setting up RAM controller.\n");
@@ -2826,9 +2811,7 @@ void sdram_initialize(int boot_path, const u8 *spd_addresses)
sdram_enable_rcomp();
/* Tell ICH7 that we're done */
- reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2);
- reg8 &= ~(1 << 7);
- pci_write_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2, reg8);
+ pci_and_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2, (u8)~(1 << 7));
printk(BIOS_DEBUG, "RAM initialization finished.\n");
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 06:06:53 +0000