diff options
| author | Derek Basehore <dbasehore@chromium.org> | 2016-09-21 17:42:26 -0700 |
|---|---|---|
| committer | Julius Werner <jwerner@chromium.org> | 2017-04-19 22:48:37 +0200 |
| commit | 38bee539b12c11c3bba453858b748fd741097f76 (patch) | |
| tree | b36660fb702a6bc48ca5b62f6513ee1468c54c75 | |
| parent | e0a60383b2a8e42f54b6e8a650236d44ef6ff58c (diff) | |
| download | coreboot-38bee539b12c11c3bba453858b748fd741097f76.tar.xz | |
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 <dbasehore@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/391032
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Commit-Queue: Lin Huang <hl@rock-chips.com>
Tested-by: Lin Huang <hl@rock-chips.com>
Reviewed-on: https://review.coreboot.org/19356
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
| -rw-r--r-- | src/mainboard/google/gru/romstage.c | 5 |
1 files changed, 4 insertions, 1 deletions
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 <cbfs.h> #include <cbmem.h> #include <console/console.h> +#include <delay.h> #include <program_loading.h> #include <romstage_handoff.h> #include <soc/addressmap.h> @@ -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) |