From 0d0f43f9d36f3a942322486b486b98f7ae5cd70d Mon Sep 17 00:00:00 2001 From: Shaunak Saha Date: Wed, 2 Sep 2020 15:37:00 -0700 Subject: soc/intel/tigerlake: Add Acoustic features Expose the following FSP UPD interface into coreboot: - AcousticNoiseMitigation - FastPkgCRampDisable - SlowSlewRateFor BUG=b:153015585 BRANCH=none TEST= Measure the change in noise level by changing the UPD values. Signed-off-by: Shaunak Saha Change-Id: I1924a3bac8beb16a9d841891696f9a3dea0d425f Reviewed-on: https://review.coreboot.org/c/coreboot/+/45052 Tested-by: build bot (Jenkins) Reviewed-by: Tim Wawrzynczak --- src/soc/intel/tigerlake/chip.h | 53 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) (limited to 'src/soc/intel/tigerlake/chip.h') diff --git a/src/soc/intel/tigerlake/chip.h b/src/soc/intel/tigerlake/chip.h index bcf71b1e62..fb6cda0919 100644 --- a/src/soc/intel/tigerlake/chip.h +++ b/src/soc/intel/tigerlake/chip.h @@ -68,6 +68,33 @@ enum lpm_state_mask { | LPM_S0i3_0 | LPM_S0i3_1 | LPM_S0i3_2 | LPM_S0i3_3 | LPM_S0i3_4, }; +/* + * VR domains. The domains are IA,GT,SA,VLCC and FIVR. + */ +enum vr_domains { + VR_DOMAIN_IA, + VR_DOMAIN_GT, + VR_DOMAIN_SA, + VR_DOMAIN_VLCC, + VR_DOMAIN_FIVR, + VR_DOMAIN_MAX +}; + +/* + * 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_tigerlake_config { /* Common struct containing soc config data required by common code */ @@ -143,6 +170,32 @@ struct soc_intel_tigerlake_config { /* Wake Enable Bitmap for USB3 ports */ uint16_t usb3_wake_enable_bitmap; + /* + * Acoustic Noise Mitigation + * 0 - Disable + * 1 - Enable noise mitigation + */ + uint8_t AcousticNoiseMitigation; + + /* + * Offset 0x054B - Disable Fast Slew Rate for Deep Package + * C States for VR domains. Disable Fast Slew Rate for Deep + * Package C States based on Acoustic Noise Mitigation feature + * enabled. The domains are IA,GT,SA,VLCC and FIVR. + * 0 - False + * 1 - True + */ + uint8_t FastPkgCRampDisable[VR_DOMAIN_MAX]; + + /* + * Offset 0x0550 - Slew Rate configuration for Deep Package + * C States for VR domains. Slew Rate configuration for Deep + * Package C States for VR domains based on Acoustic Noise + * Mitigation feature enabled. The domains are IA,GT,SA,VLCC and FIVR. + * Slew rates are defined as enum slew_rate. + */ + uint8_t SlowSlewRate[VR_DOMAIN_MAX]; + /* SATA related */ uint8_t SataEnable; uint8_t SataMode; -- cgit v1.2.3