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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)
This commit is contained in:
Derek Basehore 2016-09-21 17:42:26 -07:00 committed by Julius Werner
parent e0a60383b2
commit 38bee539b1
1 changed files with 4 additions and 1 deletions
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5
src/mainboard/google/gru/romstage.c
View File

@ -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)