From 38bee539b12c11c3bba453858b748fd741097f76 Mon Sep 17 00:00:00 2001 From: Derek Basehore Date: Wed, 21 Sep 2016 17:42:26 -0700 Subject: google/gru: change center logic voltage to 900mV It seems that we should only ever run at 900mV on center logic. Changing it to 950mV before might have just masked over problems that are now fixed. BRANCH=none BUG=chrome-os-partner:56940 TEST=on kevin, run stressapptest -M 1536 -s 1000 Change-Id: I5a09b1b403df800396bb2f2e8c76d14a4519d44a Signed-off-by: Derek Basehore Reviewed-on: https://chromium-review.googlesource.com/391032 Reviewed-by: Douglas Anderson Commit-Queue: Lin Huang Tested-by: Lin Huang Reviewed-on: https://review.coreboot.org/19356 Reviewed-by: Aaron Durbin Tested-by: build bot (Jenkins) --- src/mainboard/google/gru/romstage.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/mainboard/google/gru/romstage.c b/src/mainboard/google/gru/romstage.c index 7f84a2a2a1..4ea53181ae 100644 --- a/src/mainboard/google/gru/romstage.c +++ b/src/mainboard/google/gru/romstage.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include @@ -37,7 +38,9 @@ static void init_dvs_outputs(void) { pwm_regulator_configure(PWM_REGULATOR_GPU, 900); pwm_regulator_configure(PWM_REGULATOR_BIG, 900); - pwm_regulator_configure(PWM_REGULATOR_CENTERLOG, 950); + pwm_regulator_configure(PWM_REGULATOR_CENTERLOG, 900); + /* Allow time for the regulators to settle */ + udelay(500); } static void prepare_usb(void) -- cgit v1.2.3