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authorDuncan Laurie <dlaurie@chromium.org>2014-08-25 10:14:08 -0700
committerMarc Jones <marc.jones@se-eng.com>2015-03-27 06:20:36 +0100
commit55228ba4b41e820efea71a75c649a6dd29cc76d5 (patch)
treeb6d10b622a67278ceeaafd042db7c4057f84a72b /src/soc/intel
parentbe19c54585e4515811068370fa17ce8f4ea2a2bb (diff)
downloadcoreboot-55228ba4b41e820efea71a75c649a6dd29cc76d5.tar.xz
broadwell: Changes from 2.2.0 ref code
- The SATA CAP register setup was moved outside the refcode blob we run so it needs to be set up by coreboot again... - Slight tweak to fast ramp voltage for broadwell CPU BUG=chrome-os-partner:25491 BRANCH=None TEST=Build and boot on samus Original-Change-Id: I7bdc0811ad8f28ab0912972036dca59d229b0173 Original-CSigned-off-by: Duncan Laurie <dlaurie@chromium.org> Original-CReviewed-on: https://chromium-review.googlesource.com/214024 Original-CReviewed-by: Aaron Durbin <adurbin@chromium.org> (cherry picked from commit 5d166a0c4d206eaa885ecebaa0c3cefefdc59280) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: Id58d3bee5e713139edf6e8fda8cdf4c48ba95bd1 Reviewed-on: http://review.coreboot.org/8964 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
Diffstat (limited to 'src/soc/intel')
-rw-r--r--src/soc/intel/broadwell/cpu.c7
-rw-r--r--src/soc/intel/broadwell/sata.c7
2 files changed, 12 insertions, 2 deletions
diff --git a/src/soc/intel/broadwell/cpu.c b/src/soc/intel/broadwell/cpu.c
index b46c2e256d..8e05998c19 100644
--- a/src/soc/intel/broadwell/cpu.c
+++ b/src/soc/intel/broadwell/cpu.c
@@ -246,8 +246,11 @@ static void initialize_vr_config(void)
msr = rdmsr(MSR_VR_MISC_CONFIG2);
msr.lo &= ~0xffff;
/* Allow CPU to control minimum voltage completely (15:8) and
- * set the fast ramp voltage to 1110mV (0x6f in 10mV steps). */
- msr.lo |= 0x006f;
+ * set the fast ramp voltage in 10mV steps. */
+ if (cpu_family_model() == BROADWELL_FAMILY_ULT)
+ msr.lo |= 0x006a; /* 1.56V */
+ else
+ msr.lo |= 0x006f; /* 1.60V */
wrmsr(MSR_VR_MISC_CONFIG2, msr);
}
diff --git a/src/soc/intel/broadwell/sata.c b/src/soc/intel/broadwell/sata.c
index e9e0810de1..0e2516185a 100644
--- a/src/soc/intel/broadwell/sata.c
+++ b/src/soc/intel/broadwell/sata.c
@@ -92,6 +92,13 @@ static void sata_init(struct device *dev)
abar = (u8 *)(pci_read_config32(dev, PCI_BASE_ADDRESS_5));
printk(BIOS_DEBUG, "ABAR: %p\n", abar);
+ /* CAP (HBA Capabilities) : enable power management */
+ reg32 = read32(abar + 0x00);
+ reg32 |= 0x0c006000; /* set PSC+SSC+SALP+SSS */
+ reg32 &= ~0x00020060; /* clear SXS+EMS+PMS */
+ reg32 |= (1 << 18); /* SAM: SATA AHCI MODE ONLY */
+ write32(abar + 0x00, reg32);
+
/* PI (Ports implemented) */
write32(abar + 0x0c, config->sata_port_map);
(void) read32(abar + 0x0c); /* Read back 1 */