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google/gru: change center logic voltage to 900mV

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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/388068
Commit-Ready: Caesar Wang <wxt@rock-chips.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Lin Huang <hl@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Derek Basehore 2016-09-21 17:42:26 -07:00 • committed by chrome-bot
commit d457f12773
1 changed files with 4 additions and 1 deletions
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5
src/mainboard/google/gru/romstage.c
View file

@ -22,6 +22,7 @@
#include <cbmem.h>
#include <gpio.h>
#include <console/console.h>
#include <delay.h>
#include <program_loading.h>
#include <romstage_handoff.h>
#include <soc/addressmap.h>
@ -38,7 +39,9 @@ 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_sdmmc(void)