diff options
| -rw-r--r-- | src/soc/intel/broadwell/broadwell/systemagent.h | 5 | ||||
| -rw-r--r-- | src/soc/intel/broadwell/romstage/report_platform.c | 37 |
2 files changed, 39 insertions, 3 deletions
diff --git a/src/soc/intel/broadwell/broadwell/systemagent.h b/src/soc/intel/broadwell/broadwell/systemagent.h index c3b5f942e6..61ea56a30a 100644 --- a/src/soc/intel/broadwell/broadwell/systemagent.h +++ b/src/soc/intel/broadwell/broadwell/systemagent.h @@ -36,6 +36,11 @@ #define IGD_BROADWELL_H_GT2 0x1612 #define IGD_BROADWELL_H_GT3 0x1622 +#define MCH_BROADWELL_ID_U_Y 0x1604 +#define MCH_BROADWELL_REV_D0 0x06 +#define MCH_BROADWELL_REV_E0 0x08 +#define MCH_BROADWELL_REV_F0 0x09 + /* Device 0:0.0 PCI configuration space */ #define EPBAR 0x40 diff --git a/src/soc/intel/broadwell/romstage/report_platform.c b/src/soc/intel/broadwell/romstage/report_platform.c index d4355644db..84273e4f3a 100644 --- a/src/soc/intel/broadwell/romstage/report_platform.c +++ b/src/soc/intel/broadwell/romstage/report_platform.c @@ -32,7 +32,7 @@ static struct { u32 cpuid; const char *name; -} cpu_table [] = { +} cpu_table[] = { { CPUID_HASWELL_A0, "Haswell A0" }, { CPUID_HASWELL_B0, "Haswell B0" }, { CPUID_HASWELL_C0, "Haswell C0" }, @@ -45,9 +45,18 @@ static struct { }; static struct { + u8 revid; + const char *name; +} mch_rev_table[] = { + { MCH_BROADWELL_REV_D0, "Broadwell D0" }, + { MCH_BROADWELL_REV_E0, "Broadwell E0" }, + { MCH_BROADWELL_REV_F0, "Broadwell F0" }, +}; + +static struct { u16 lpcid; const char *name; -} pch_table [] = { +} pch_table[] = { { PCH_LPT_LP_SAMPLE, "LynxPoint LP Sample" }, { PCH_LPT_LP_PREMIUM, "LynxPoint LP Premium" }, { PCH_LPT_LP_MAINSTREAM, "LynxPoint LP Mainstream" }, @@ -65,7 +74,7 @@ static struct { static struct { u16 igdid; const char *name; -} igd_table [] = { +} igd_table[] = { { IGD_HASWELL_ULT_GT1, "Haswell ULT GT1" }, { IGD_HASWELL_ULT_GT2, "Haswell ULT GT2" }, { IGD_HASWELL_ULT_GT3, "Haswell ULT GT3" }, @@ -131,6 +140,27 @@ static void report_cpu_info(void) "VT %ssupported\n", mode[aes], mode[txt], mode[vt]); } +static void report_mch_info(void) +{ + int i; + u16 mch_device = pci_read_config16(SA_DEV_ROOT, PCI_DEVICE_ID); + u8 mch_revision = pci_read_config8(SA_DEV_ROOT, PCI_REVISION_ID); + const char *mch_type = "Unknown"; + + /* Look for string to match the revision for Broadwell U/Y */ + if (mch_device == MCH_BROADWELL_ID_U_Y) { + for (i = 0; i < ARRAY_SIZE(mch_rev_table); i++) { + if (mch_rev_table[i].revid == mch_revision) { + mch_type = mch_rev_table[i].name; + break; + } + } + } + + printk(BIOS_DEBUG, "MCH: device id %04x (rev %02x) is %s\n", + mch_device, mch_revision, mch_type); +} + static void report_pch_info(void) { int i; @@ -166,6 +196,7 @@ static void report_igd_info(void) void report_platform_info(void) { report_cpu_info(); + report_mch_info(); report_pch_info(); report_igd_info(); } |