GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

soc/intel/alderlake: Add Acoustic noise mitigation UPDs 

This patch expose the following FSP UPD interface into coreboot:
- AcousticNoiseMitigation
- FastPkgCRampDisable
- SlowSlewRate

BUG=b:204009588
TEST=build

Change-Id: I0b9c18f9b40d30525028e64754dd1dc86c3b2ec6
Signed-off-by: Wisley Chen <wisley.chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58944
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Wisley Chen 2021-11-04 18:12:58 +06:00 committed by Felix Held
parent 570645dc2a
commit c510346b08
2 changed files with 38 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
src/soc/intel/alderlake/chip.h
View File

@ -151,6 +151,21 @@ enum fivr_spread_spectrum_ratio {
FIVR_SS_6 = 44,
};
/*
* Slew Rate configuration for Deep Package C States for VR domain.
* They are fast time divided by 2.
* 0 - Fast/2
* 1 - Fast/4
* 2 - Fast/8
* 3 - Fast/16
*/
enum slew_rate {
SLEW_FAST_2,
SLEW_FAST_4,
SLEW_FAST_8,
SLEW_FAST_16
};
struct soc_intel_alderlake_config {
/* Common struct containing soc config data required by common code */
@ -528,6 +543,15 @@ struct soc_intel_alderlake_config {
* 0.5% = 0, 1% = 3, 1.5% = 8, 2% = 18, 3% = 28, 4% = 34, 5% = 39, 6% = 44.
*/
uint8_t FivrSpreadSpectrum;
/* Enable or Disable Acoustic Noise Mitigation feature */
uint8_t AcousticNoiseMitigation;
/* Disable Fast Slew Rate for Deep Package C States for VR domains */
uint8_t FastPkgCRampDisable[NUM_VR_DOMAINS];
/*
* Slew Rate configuration for Deep Package C States for VR domains
* 0: Fast/2, 1: Fast/4, 2: Fast/8, 3: Fast/16; see enum slew_rate for values
*/
uint8_t SlowSlewRate[NUM_VR_DOMAINS];
};
typedef struct soc_intel_alderlake_config config_t;

14
src/soc/intel/alderlake/fsp_params.c
View File

@ -739,6 +739,19 @@ static void fill_fsps_fivr_rfi_params(FSP_S_CONFIG *s_cfg,
s_cfg->FivrSpreadSpectrum = config->FivrSpreadSpectrum;
}
static void fill_fsps_acoustic_params(FSP_S_CONFIG *s_cfg,
const struct soc_intel_alderlake_config *config)
{
s_cfg->AcousticNoiseMitigation = config->AcousticNoiseMitigation;
if (s_cfg->AcousticNoiseMitigation) {
for (int i = 0; i < NUM_VR_DOMAINS; i++) {
s_cfg->FastPkgCRampDisable[i] = config->FastPkgCRampDisable[i];
s_cfg->SlowSlewRate[i] = config->SlowSlewRate[i];
}
}
}
static void soc_silicon_init_params(FSP_S_CONFIG *s_cfg,
struct soc_intel_alderlake_config *config)
{
@ -770,6 +783,7 @@ static void soc_silicon_init_params(FSP_S_CONFIG *s_cfg,
fill_fsps_irq_params,
fill_fsps_fivr_params,
fill_fsps_fivr_rfi_params,
fill_fsps_acoustic_params,
};
for (size_t i = 0; i < ARRAY_SIZE(fill_fsps_params); i++)