From 5d166a0c4d206eaa885ecebaa0c3cefefdc59280 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Mon, 25 Aug 2014 10:14:08 -0700 Subject: [PATCH] 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 Change-Id: I7bdc0811ad8f28ab0912972036dca59d229b0173 Signed-off-by: Duncan Laurie Reviewed-on: https://chromium-review.googlesource.com/214024 Reviewed-by: Aaron Durbin --- src/soc/intel/broadwell/cpu.c | 7 +++++-- src/soc/intel/broadwell/sata.c | 7 +++++++ 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/src/soc/intel/broadwell/cpu.c b/src/soc/intel/broadwell/cpu.c index 58f81fc79d..190cf83ac2 100644 --- a/src/soc/intel/broadwell/cpu.c +++ b/src/soc/intel/broadwell/cpu.c @@ -247,8 +247,11 @@ 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 a80b59e74d..3f8b7815ce 100644 --- a/src/soc/intel/broadwell/sata.c +++ b/src/soc/intel/broadwell/sata.c @@ -91,6 +91,13 @@ static void sata_init(struct device *dev) abar = pci_read_config32(dev, PCI_BASE_ADDRESS_5); printk(BIOS_DEBUG, "ABAR: %08X\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 */