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| author | Duncan Laurie <dlaurie@google.com> | 2019-01-07 12:06:07 -0800 |
|---|---|---|
| committer | Duncan Laurie <dlaurie@chromium.org> | 2019-01-08 19:12:38 +0000 |
| commit | 55012d149ae3f917da419a2987081739222fc357 (patch) | |
| tree | a2a56fa045a1f92bd1ceba5da0101fea6ebc4b3a | |
| parent | 8601a16c9e6a043f424fab76c7fa12540cf2348b (diff) | |
| download | coreboot-55012d149ae3f917da419a2987081739222fc357.tar.xz | |
soc/intel/cannonlake: Add FSP UPD for minimum assertion width
Expose the FSP tunables for the chipset minimum assertion width
settings which can be configured per-board.
The defaults appear to be different from what is listed in the FSP
header documentation so I tried to list what the actual default is
based on the source rather than what is stated the header comments.
Change-Id: Ie0606c2984727adf13c9fb8395586287162e49ca
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/30719
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
| -rw-r--r-- | src/soc/intel/cannonlake/chip.h | 37 | ||||
| -rw-r--r-- | src/soc/intel/cannonlake/fsp_params.c | 10 |
2 files changed, 47 insertions, 0 deletions
diff --git a/src/soc/intel/cannonlake/chip.h b/src/soc/intel/cannonlake/chip.h index 3a723d2ab0..6517b9e882 100644 --- a/src/soc/intel/cannonlake/chip.h +++ b/src/soc/intel/cannonlake/chip.h @@ -222,6 +222,43 @@ struct soc_intel_cannonlake_config { */ uint32_t PrmrrSize; uint8_t PmTimerDisabled; + + /* + * SLP_S3 Minimum Assertion Width Policy + * 1 = 60us + * 2 = 1ms (default) + * 3 = 50ms + * 4 = 2s + */ + uint8_t PchPmSlpS3MinAssert; + + /* + * SLP_S4 Minimum Assertion Width Policy + * 1 = 1s + * 2 = 2s + * 3 = 3s + * 4 = 4s (default) + */ + uint8_t PchPmSlpS4MinAssert; + + /* + * SLP_SUS Minimum Assertion Width Policy + * 1 = 0ms + * 2 = 500ms + * 3 = 1s (default) + * 4 = 4s + */ + uint8_t PchPmSlpSusMinAssert; + + /* + * SLP_A Minimum Assertion Width Policy + * 1 = 0ms + * 2 = 4s + * 3 = 98ms (default) + * 4 = 2s + */ + uint8_t PchPmSlpAMinAssert; + /* Desired platform debug type. */ enum { DebugConsent_Disabled, diff --git a/src/soc/intel/cannonlake/fsp_params.c b/src/soc/intel/cannonlake/fsp_params.c index 8166dea691..ea781bcb3e 100644 --- a/src/soc/intel/cannonlake/fsp_params.c +++ b/src/soc/intel/cannonlake/fsp_params.c @@ -229,6 +229,16 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd) /* Power Optimizer */ params->PchPwrOptEnable = config->dmipwroptimize; params->SataPwrOptEnable = config->satapwroptimize; + + /* 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; } /* Mainboard GPIO Configuration */ |