diff options
| author | Rizwan Qureshi <rizwan.qureshi@intel.corp-partner.google.com> | 2017-09-25 17:35:15 +0530 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2017-10-05 17:46:15 +0000 |
| commit | b3e18c7a434700ace381443a0e16718d8c6af7f6 (patch) | |
| tree | 6621c6020ab66951a53ce20bd1d46eaa637116f6 /src | |
| parent | bd55c02a2398e2ce95cb06ff9f1e3fb1c20d0ab8 (diff) | |
soc/intel/skylake: Add config for mbx command for Intersil VR C-state issues
Config for activating VR mailbox command for Intersil VR C-state issues.
0 - no mailbox command sent.
1 - VR mailbox command sent for IA/GT rails only.
2 - VR mailbox command sent for IA/GT/SA rails.
BUG=b:65499724
BRANCH=none
TEST= build and boot soraka.
Change-Id: Ibcced31b7ba473ffa7368c90c945d07a81a368d4
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/21680
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/skylake/chip.h | 8 | ||||
| -rw-r--r-- | src/soc/intel/skylake/chip_fsp20.c | 8 |
2 files changed, 16 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/chip.h b/src/soc/intel/skylake/chip.h index 0ade01cd1e..022306cef3 100644 --- a/src/soc/intel/skylake/chip.h +++ b/src/soc/intel/skylake/chip.h @@ -518,6 +518,14 @@ struct soc_intel_skylake_config { /* coreboot handles locking */ CHIPSET_LOCKDOWN_COREBOOT, } chipset_lockdown; + + /* + * Activates VR mailbox command for Intersil VR C-state issues. + * 0 - no mailbox command sent. + * 1 - VR mailbox command sent for IA/GT rails only. + * 2 - VR mailbox command sent for IA/GT/SA rails. + */ + u8 IslVrCmd; }; typedef struct soc_intel_skylake_config config_t; diff --git a/src/soc/intel/skylake/chip_fsp20.c b/src/soc/intel/skylake/chip_fsp20.c index b1697ae35f..ac60125f70 100644 --- a/src/soc/intel/skylake/chip_fsp20.c +++ b/src/soc/intel/skylake/chip_fsp20.c @@ -271,6 +271,14 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd) */ params->SendVrMbxCmd1 = config->SendVrMbxCmd; + /* + * Activates VR mailbox command for Intersil VR C-state issues. + * 0 - no mailbox command sent. + * 1 - VR mailbox command sent for IA/GT rails only. + * 2 - VR mailbox command sent for IA/GT/SA rails. + */ + params->IslVrCmd = config->IslVrCmd; + /* Acoustic Noise Mitigation */ params->AcousticNoiseMitigation = config->AcousticNoiseMitigation; params->SlowSlewRateForIa = config->SlowSlewRateForIa; |