diff options
| author | Yidi Lin <yidilin@chromium.org> | 2024-05-17 15:35:54 +0800 |
|---|---|---|
| committer | Yu-Ping Wu <yupingso@google.com> | 2024-10-19 04:37:10 +0000 |
| commit | d96cc8d2df38d1850e38da909cb7e00c2d6c50a4 (patch) | |
| tree | ff7e2a271299b0d1a78fbe96ad8ed9319a21fd92 /src/cpu/x86/tsc | |
| parent | f789d41539a72d71bad97ce5e19566a05a952244 (diff) | |
mb/google/rauru: Configure the fingerprint pins
There is no powering-on control in the fingerprint kernel driver. The
fingerprint team of ChromeOS suggests powering-on FP MCU in the FW.
Follow trogdor to pull down FP_RST_1V8_S3_L, AP_FP_FW_UP_STRAP,
EN_PWR_FP and pull up EN_PWR_FP in ramstage for power rail to be stable.
BUG=b:340401582
TEST=measure waveform and the fingerprint works on ChromeOS
Change-Id: I05600d90fdf922faeb778a36d8a08f68c1bb4125
Signed-off-by: Yidi Lin <yidilin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84692
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yidi Lin <yidilin@google.com>
Diffstat (limited to 'src/cpu/x86/tsc')
0 files changed, 0 insertions, 0 deletions