Change in coreboot[master]: [for test]soc/intel/fsp_broadwell_de: Fix IA32_MC0_STATUS clear and I...

[Elyes HAOUAS (Code Review)]

Elyes HAOUAS has uploaded this change for review. ( https://review.coreboot.org/28727

Change subject: [for test]soc/intel/fsp_broadwell_de: Fix IA32_MC0_STATUS clear and IA32_MC0_CTL init
......................................................................

[for test]soc/intel/fsp_broadwell_de: Fix IA32_MC0_STATUS clear and IA32_MC0_CTL init

Change-Id: I0c08844f3b9732195be65e8dc8a382df57c09bc1
Signed-off-by: Elyes HAOUAS 
---
M src/soc/intel/fsp_broadwell_de/cpu.c
M src/soc/intel/fsp_broadwell_de/include/soc/msr.h
2 files changed, 10 insertions(+), 8 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/27/28727/1

diff --git a/src/soc/intel/fsp_broadwell_de/cpu.c b/src/soc/intel/fsp_broadwell_de/cpu.c
index a50c839..c11ccd3 100644
--- a/src/soc/intel/fsp_broadwell_de/cpu.c
+++ b/src/soc/intel/fsp_broadwell_de/cpu.c
@@ -128,11 +128,10 @@
 static void configure_mca(void)
 {
    msr_t msr;
-	const unsigned int mcg_cap_msr = 0x179;
    int i;
    int num_banks;

-	msr = rdmsr(mcg_cap_msr);
+	msr = rdmsr(IA32_MCG_CAP);
    num_banks = msr.lo & 0xff;

/* TODO(adurbin): This should only be done on a cold boot. Also, some
@@ -140,14 +139,15 @@
       every bank. */
    msr.lo = msr.hi = 0;
    for (i = 0; i < num_banks; i++) {
-		wrmsr(MSR_IA32_MC0_STATUS + (i * 4) + 1, msr);
-		wrmsr(MSR_IA32_MC0_STATUS + (i * 4) + 2, msr);
-		wrmsr(MSR_IA32_MC0_STATUS + (i * 4) + 3, msr);
+		/* Clear the machine check status */
+		wrmsr(IA32_MC0_STATUS + (i * 4), msr);
    }

msr.lo = msr.hi = 0xffffffff;
-	for (i = 0; i < num_banks; i++)
-		wrmsr(MSR_IA32_MC0_STATUS + (i * 4), msr);
+	for (i = 0; i < num_banks; i++) {
+		/* Initialize machine checks */
+		wrmsr(IA32_MC0_CTL + (i * 4), msr);
+	}
 }

static void broadwell_de_core_init(struct device *cpu)
diff --git a/src/soc/intel/fsp_broadwell_de/include/soc/msr.h b/src/soc/intel/fsp_broadwell_de/include/soc/msr.h
index 6b87061..ffa33da 100644
--- a/src/soc/intel/fsp_broadwell_de/include/soc/msr.h
+++ b/src/soc/intel/fsp_broadwell_de/include/soc/msr.h
@@ -21,9 +21,11 @@
 #define MSR_IA32_PLATFORM_ID	0x17
 #define MSR_CORE_THREAD_COUNT	0x35
 #define MSR_PLATFORM_INFO	0xce
+#define IA32_MCG_CAP		0x179
 #define IA32_PERF_CTL		0x199
 #define MSR_TURBO_RATIO_LIMIT	0x1ad
-#define MSR_IA32_MC0_STATUS	0x400
+#define IA32_MC0_CTL		0x400
+#define IA32_MC0_STATUS		0x401
 #define MSR_PKG_POWER_SKU_UNIT	0x606
 #define MSR_PKG_POWER_LIMIT	0x610
 #define MSR_CONFIG_TDP_NOMINAL	0x648