diff options
| author | Subrata Banik <subrata.banik@intel.com> | 2017-02-03 19:05:27 +0530 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2017-06-09 19:26:55 +0200 |
| commit | f004f66ca7b0c428c04d6025738319187cf911fe (patch) | |
| tree | 018b0fedb7981caca6e5f207a10e8351bc25c85b /src/soc/intel/skylake/include | |
| parent | 0a203d13f672b5cf12a56eaecfbcbe2e081f18ed (diff) | |
soc/intel/skylake: Enable ACPI PM timer emulation on all CPUs
This patch enables ACPI timer emulation on all the logical cpus.
BUG=chrome-os-partner:62438
BRANCH=NONE
TEST=Verify MSR 0x121 gets programmed on all logical cpus during coreboot MP Init.
Change-Id: I2246cdfe1f60fd359b0a0eda89b4a45b5554dc4a
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/18288
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/skylake/include')
| -rw-r--r-- | src/soc/intel/skylake/include/soc/cpu.h | 3 | ||||
| -rw-r--r-- | src/soc/intel/skylake/include/soc/msr.h | 4 |
2 files changed, 7 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/include/soc/cpu.h b/src/soc/intel/skylake/include/soc/cpu.h index 7bfd8bae2b..6419bf8506 100644 --- a/src/soc/intel/skylake/include/soc/cpu.h +++ b/src/soc/intel/skylake/include/soc/cpu.h @@ -51,6 +51,9 @@ #define C9_POWER 0xc8 #define C10_POWER 0xc8 +/* Common Timer Copy (CTC) frequency - 19.2MHz. */ +#define CTC_FREQ 19200000 + #define C_STATE_LATENCY_MICRO_SECONDS(limit, base) \ (((1 << ((base)*5)) * (limit)) / 1000) #define C_STATE_LATENCY_FROM_LAT_REG(reg) \ diff --git a/src/soc/intel/skylake/include/soc/msr.h b/src/soc/intel/skylake/include/soc/msr.h index 98f25a153e..bb4b8e72ac 100644 --- a/src/soc/intel/skylake/include/soc/msr.h +++ b/src/soc/intel/skylake/include/soc/msr.h @@ -21,6 +21,10 @@ #define MSR_PIC_MSG_CONTROL 0x2e #define MSR_BIOS_UPGD_TRIG 0x7a +#define MSR_EMULATE_PM_TIMER 0x121 +#define EMULATE_PM_TMR_EN (1 << 16) +#define EMULATE_DELAY_OFFSET_VALUE 20 +#define EMULATE_DELAY_VALUE 0x13 #define IA32_THERM_INTERRUPT 0x19b #define IA32_ENERGY_PERFORMANCE_BIAS 0x1b0 #define ENERGY_POLICY_PERFORMANCE 0 |