diff options
| author | Jamie Ryu <jamie.m.ryu@intel.com> | 2020-08-18 18:54:49 -0700 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-09-23 16:24:42 +0000 |
| commit | 5b7daa224cb035f87c3b71105bb453849c7d54d4 (patch) | |
| tree | 8c788d990f3a6c93be8c486cfdaa085eead8d2a1 /src/soc/intel | |
| parent | 81ab88b416caafc8a23b532e54dc4c1d0597f6af (diff) | |
soc/intel/tigerlake: Configure FSP UPDs for minimum assertion widths
Configure FSP UPDs for the chipset minimum assertion widths and
power cycle duration per mainboard variants.
* PchPmSlpS3MinAssert: SLP_S3 Minimum Assertion Width Policy
* PchPmSlpS4MinAssert: SLP_S4 Minimum Assertion Width Policy
* PchPmSlpSusMinAssert: SLP_SUS Minimum Assertion Width Policy
* PchPmSlpAMinAssert: SLP_A Minimum Assertion Width Policy
* PchPmPwrCycDur: PCH PM Reset Power Cycle Duration
* Check to avoid violating the PCH EDS recommendation for the
PchPmPwrCycDur setting.
BUG=b:159108661
Signed-off-by: Jamie Ryu <jamie.m.ryu@intel.com>
Change-Id: I8180d95a2185c3786334e10613f47e77b7bc9d5f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44557
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: V Sowmya <v.sowmya@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/tigerlake/chip.h | 53 | ||||
| -rw-r--r-- | src/soc/intel/tigerlake/fsp_params.c | 17 |
2 files changed, 70 insertions, 0 deletions
diff --git a/src/soc/intel/tigerlake/chip.h b/src/soc/intel/tigerlake/chip.h index dc8697b972..bcf71b1e62 100644 --- a/src/soc/intel/tigerlake/chip.h +++ b/src/soc/intel/tigerlake/chip.h @@ -389,6 +389,59 @@ struct soc_intel_tigerlake_config { * Default 0. Setting this to 1 to check CPU replacement. */ uint8_t CpuReplacementCheck; + + /* + * SLP_S3 Minimum Assertion Width Policy + * 1 = 60us + * 2 = 1ms + * 3 = 50ms (default) + * 4 = 2s + */ + uint8_t PchPmSlpS3MinAssert; + + /* + * SLP_S4 Minimum Assertion Width Policy + * 1 = 1s (default) + * 2 = 2s + * 3 = 3s + * 4 = 4s + */ + uint8_t PchPmSlpS4MinAssert; + + /* + * SLP_SUS Minimum Assertion Width Policy + * 1 = 0ms + * 2 = 500ms + * 3 = 1s + * 4 = 4s (default) + */ + uint8_t PchPmSlpSusMinAssert; + + /* + * SLP_A Minimum Assertion Width Policy + * 1 = 0ms + * 2 = 4s + * 3 = 98ms + * 4 = 2s (default) + */ + uint8_t PchPmSlpAMinAssert; + + /* + * PCH PM Reset Power Cycle Duration + * 0 = 4s (default) + * 1 = 1s + * 2 = 2s + * 3 = 3s + * 4 = 4s + * + * NOTE: Duration programmed in the PchPmPwrCycDur should never be smaller than the + * stretch duration programmed in the following registers: + * - GEN_PMCON_A.SLP_S3_MIN_ASST_WDTH (PchPmSlpS3MinAssert) + * - GEN_PMCON_A.S4MAW (PchPmSlpS4MinAssert) + * - PM_CFG.SLP_A_MIN_ASST_WDTH (PchPmSlpAMinAssert) + * - PM_CFG.SLP_LAN_MIN_ASST_WDTH + */ + uint8_t PchPmPwrCycDur; }; typedef struct soc_intel_tigerlake_config config_t; diff --git a/src/soc/intel/tigerlake/fsp_params.c b/src/soc/intel/tigerlake/fsp_params.c index 73a620d465..1c5490b0f8 100644 --- a/src/soc/intel/tigerlake/fsp_params.c +++ b/src/soc/intel/tigerlake/fsp_params.c @@ -10,6 +10,7 @@ #include <intelblocks/cse.h> #include <intelblocks/lpss.h> #include <intelblocks/mp_init.h> +#include <intelblocks/pmclib.h> #include <intelblocks/xdci.h> #include <intelpch/lockdown.h> #include <security/vboot/vboot_common.h> @@ -331,6 +332,22 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd) } + /* Apply minimum assertion width settings if non-zero */ + if (config->PchPmSlpS3MinAssert) + params->PchPmSlpS3MinAssert = config->PchPmSlpS3MinAssert; + if (config->PchPmSlpS4MinAssert) + params->PchPmSlpS4MinAssert = config->PchPmSlpS4MinAssert; + if (config->PchPmSlpSusMinAssert) + params->PchPmSlpSusMinAssert = config->PchPmSlpSusMinAssert; + if (config->PchPmSlpAMinAssert) + params->PchPmSlpAMinAssert = config->PchPmSlpAMinAssert; + + /* Set Power Cycle Duration */ + if (config->PchPmPwrCycDur) + params->PchPmPwrCycDur = get_pm_pwr_cyc_dur(config->PchPmSlpS4MinAssert, + config->PchPmSlpS3MinAssert, config->PchPmSlpAMinAssert, + config->PchPmPwrCycDur); + /* EnableMultiPhaseSiliconInit for running MultiPhaseSiInit */ params->EnableMultiPhaseSiliconInit = 1; mainboard_silicon_init_params(params); |