GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mb/google/nissa/var/joxer: Configure Acoustic noise mitigation 

- Enable Acoustic noise mitigation
- Set slow slew rate VCCIA and VCCGT to SLEW_FAST_8
- Set FastPkgCRampDisable VCCIA and VCCGT to 1

BUG=b:303533832
TEST=USE="project_joxer emerge-nissa coreboot"

Signed-off-by: Mark Hsieh <mark_hsieh@wistron.corp-partner.google.com>
Change-Id: I575da55b96bf4deacec5c0992eae9930eb0745d6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78256
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Derek Huang <derekhuang@google.com>
This commit is contained in:
Mark Hsieh 2023-10-05 21:36:38 +08:00 committed by Felix Held
parent 70b517ee57
commit 90f8151271
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/mainboard/google/brya/variants/joxer/overridetree.cb
View File

@ -16,6 +16,13 @@ end
chip soc/intel/alderlake chip soc/intel/alderlake
register "sagv" = "SaGv_Enabled" register "sagv" = "SaGv_Enabled"
# Acoustic settings
register "acoustic_noise_mitigation" = "1"
register "slow_slew_rate[VR_DOMAIN_IA]" = "SLEW_FAST_8"
register "slow_slew_rate[VR_DOMAIN_GT]" = "SLEW_FAST_8"
register "fast_pkg_c_ramp_disable[VR_DOMAIN_IA]" = "1"
register "fast_pkg_c_ramp_disable[VR_DOMAIN_GT]" = "1"
# EMMC Tx CMD Delay # EMMC Tx CMD Delay
# Refer to EDS-Vol2-42.3.7. # Refer to EDS-Vol2-42.3.7.
# [14:8] steps of delay for DDR mode, each 125ps, range: 0 - 39. # [14:8] steps of delay for DDR mode, each 125ps, range: 0 - 39.