erebion/coreboot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

google/gru: Fix up PWM regulator ranges

Browse source 
We did yet another small adjustment to the PWM regulator ranges for
Kevin rev6... this patch reflects that in code. Also rewrite code and
descriptions to indicate that these new ranges are not just for Kevin,
but also planned to be used on Gru rev2 and any future Gru derivatives
(which as I understand it is the plan, right?).

BRANCH=None
BUG=chrome-os-partner:54888
TEST=Booted my rev5, for whatever that's worth...

Change-Id: I723dc09b9711c7c6d2b3402d012198438309a8ff
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/379921
Reviewed-by: Douglas Anderson <dianders@chromium.org>
This commit is contained in:
Julius Werner 2016-09-01 11:50:18 -07:00 • committed by chrome-bot
commit 4e8be3f09a
1 changed files with 10 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

19
src/mainboard/google/gru/pwm_regulator.c
View file

@ -31,12 +31,12 @@
#define PWM_DESIGN_VOLTAGE_MIN 8000
#define PWM_DESIGN_VOLTAGE_MAX 15000
/* The min & max design voltages are different after kevin-r6 */
int kevin_voltage_min_max_r6[][2] = {
[PWM_REGULATOR_GPU] = {7910, 12139},
[PWM_REGULATOR_BIG] = {7986, 13057},
[PWM_REGULATOR_LIT] = {7997, 13002},
[PWM_REGULATOR_CENTERLOG] = {7996, 10507}
/* Later boards (Kevin rev6+, Gru rev2+) use different regulator ranges. */
int pwm_design_voltage_later[][2] = {
[PWM_REGULATOR_GPU] = {7858, 12177},
[PWM_REGULATOR_BIG] = {7987, 13022},
[PWM_REGULATOR_LIT] = {7991, 13037},
[PWM_REGULATOR_CENTERLOG] = {8001, 10497}
};
void pwm_regulator_configure(enum pwm_regulator pwm, int millivolt)
@ -61,9 +61,10 @@ void pwm_regulator_configure(enum pwm_regulator pwm, int millivolt)
voltage_min = PWM_DESIGN_VOLTAGE_MIN;
voltage_max = PWM_DESIGN_VOLTAGE_MAX;
if (IS_ENABLED(CONFIG_BOARD_GOOGLE_KEVIN) && board_id() >= 6) {
voltage_min = kevin_voltage_min_max_r6[pwm][0];
voltage_max = kevin_voltage_min_max_r6[pwm][1];
if (!(IS_ENABLED(CONFIG_BOARD_GOOGLE_KEVIN) && board_id() < 6) &&
!(IS_ENABLED(CONFIG_BOARD_GOOGLE_GRU) && board_id() < 2)) {
voltage_min = pwm_design_voltage_later[pwm][0];
voltage_max = pwm_design_voltage_later[pwm][1];
}
assert(voltage <= voltage_max && voltage >= voltage_min);