From e673e5c09eebad3efbe19d15d064d131771abc2c Mon Sep 17 00:00:00 2001 From: John Zhao Date: Tue, 30 Oct 2018 15:12:11 -0700 Subject: soc/intel/apollolake: Improve cold boot and S3 resume FSP 2.0.7.1 provides UPD interface to execute IPC command. Configure PmicPmcIpcCtrl for PMC to program PMIC PCH_PWROK delay from default 100ms to 10ms to improve cold boot and S3 resume performance. BUG=b:118676361 CQ-DEPEND=CL:*703187 TEST=Verified system_resume_firmware_ec time reduction. Change-Id: I05656c9083a855112120b7f1b0ec01c42f582409 Signed-off-by: John Zhao Reviewed-on: https://review.coreboot.org/29363 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh --- src/soc/intel/apollolake/chip.c | 7 +++++++ src/soc/intel/apollolake/chip.h | 6 ++++++ 2 files changed, 13 insertions(+) (limited to 'src/soc/intel') diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c index 9ee6dbb96d..e6904da75f 100644 --- a/src/soc/intel/apollolake/chip.c +++ b/src/soc/intel/apollolake/chip.c @@ -567,6 +567,13 @@ static void glk_fsp_silicon_init_params_cb( * has set up. Hence skipping in FSP. */ silconfig->SkipSpiPCP = 1; + + /* + * FSP provides UPD interface to execute IPC command. In order to + * improve boot performance, configure PmicPmcIpcCtrl for PMC to program + * PMIC PCH_PWROK delay. + */ + silconfig->PmicPmcIpcCtrl = cfg->PmicPmcIpcCtrl; #endif } diff --git a/src/soc/intel/apollolake/chip.h b/src/soc/intel/apollolake/chip.h index 8ad622f684..202f2acf1e 100644 --- a/src/soc/intel/apollolake/chip.h +++ b/src/soc/intel/apollolake/chip.h @@ -156,6 +156,12 @@ struct soc_intel_apollolake_config { * (1) Power * (2) Power & Performance */ enum pnp_settings pnp_settings; + + /* PMIC PCH_PWROK delay configuration - IPC Configuration + * Upd for changing PCH_PWROK delay configuration : I2C_Slave_Address + * (31:24) + Register_Offset (23:16) + OR Value (15:8) + AND Value (7:0) + */ + uint32_t PmicPmcIpcCtrl; }; typedef struct soc_intel_apollolake_config config_t; -- cgit v1.2.3