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zinger: change behavior of pin PA0 for wakeup functionality

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Zinger EVT units will have hardware change for PA0 to be able to
wake up from standby. Part of the change is that we have to output
high on PA0 in order for the comparator to compare against 0.65V, which
is inverted from the previous version.

BUG=chrome-os-partner:28335
BRANCH=none
TEST=reworked a p2 zinger with PA0 changes, plugged into samus,
and verified we still charge.

Change-Id: I7344f1d1decddc4e6600e41c313e1e7a5a5de067
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/209832
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Alec Berg
2014-07-24 15:47:38 -07:00
committed by chrome-internal-fetch
parent b466ab4c67
commit ab8a50b84e
1 changed files with 3 additions and 3 deletions
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6
board/zinger/hardware.c
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@@ -65,7 +65,7 @@ static void power_init(void)
static void pins_init(void)
{
/* Pin usage:
* PA0 (OUT - OD GPIO) : Wakeup on Vnc / Threshold
* PA0 (OUT - GPIO) : Wakeup on Vnc / Threshold
* PA1 (ANALOG - ADC_IN1) : CC sense
* PA2 (ANALOG - ADC_IN2) : Current sense
* PA3 (ANALOG - ADC_IN3) : Voltage sense
@@ -81,10 +81,10 @@ static void pins_init(void)
* PF0 (OUT - GPIO) : LM5050 FET driver off
* PF1 (OUT - GPIO) : discharge FET
*/
STM32_GPIO_ODR(GPIO_A) = /* HIGH(0) | */ HIGH(4);
STM32_GPIO_ODR(GPIO_A) = HIGH(0) | HIGH(4);
STM32_GPIO_AFRL(GPIO_A) = AFx(7, 1);
STM32_GPIO_AFRH(GPIO_A) = AFx(9, 1) | AFx(10, 1);
STM32_GPIO_OTYPER(GPIO_A) = ODR(0) | ODR(4);
STM32_GPIO_OTYPER(GPIO_A) = ODR(4);
STM32_GPIO_OSPEEDR(GPIO_A) = HISPEED(5) | HISPEED(6) | HISPEED(7);
STM32_GPIO_MODER(GPIO_A) = OUT(0) | ANALOG(1) | ANALOG(2) | ANALOG(3)
| OUT(4) | AF(5) /*| AF(6)*/ | AF(7) | AF(9)