soc/intel/cannonlake: Add support for EMMC DLL update
Add option to have customized DLL setting for EMMC interface to make EMMC able to run at HS400 speed. BUG=None Change-Id: I38bc022d8c05dd1fbd03dc26aa6f33cd249e8248 Signed-off-by: Lijian Zhao <lijian.zhao@intel.com> Reviewed-on: https://review.coreboot.org/23600 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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@ -262,6 +262,12 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd)
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/* eMMC and SD */
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params->ScsEmmcEnabled = config->ScsEmmcEnabled;
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params->ScsEmmcHs400Enabled = config->ScsEmmcHs400Enabled;
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params->PchScsEmmcHs400DllDataValid = config->EmmcHs400DllNeed;
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if (config->EmmcHs400DllNeed == 1) {
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params->PchScsEmmcHs400RxStrobeDll1 =
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config->EmmcHs400RxStrobeDll1;
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params->PchScsEmmcHs400TxDataDll = config->EmmcHs400TxDataDll;
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}
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params->ScsSdCardEnabled = config->ScsSdCardEnabled;
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params->ScsUfsEnabled = config->ScsUfsEnabled;
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@ -155,7 +155,12 @@ struct soc_intel_cannonlake_config {
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/* eMMC and SD */
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uint8_t ScsEmmcEnabled;
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uint8_t ScsEmmcHs400Enabled;
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uint8_t PchScsEmmcHs400TuningRequired;
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/* Need to update DLL setting to get Emmc running at HS400 speed */
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uint8_t EmmcHs400DllNeed;
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/* 0-39: number of active delay for RX strobe, unit is 125 psec */
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uint8_t EmmcHs400RxStrobeDll1;
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/* 0-78: number of active delay for TX data, unit is 125 psec */
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uint8_t EmmcHs400TxDataDll;
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uint8_t ScsSdCardEnabled;
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uint8_t ScsUfsEnabled;
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