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ryu: fix power button polarity 

The power button signal is driven from the silego part.
It's active high when the button is pressed.

BUG=None
BRANCH=None
TEST=Booted with power button pressed. vboot saw the press and
     requested a shut down.

Change-Id: Ifff1bd8d4340849e0c218812fd401b61c90c5743
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: b6bd7c0de38e1078b85f1671493c6d2948d43149
Original-Change-Id: If25ebce28c1ab5a363f3b4b5ab9fc24baebad56a
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/214847
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9028
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Aaron Durbin 2014-08-29 16:56:00 -05:00 committed by Patrick Georgi
parent 45a1c949cb
commit 719b7880b6
3 changed files with 8 additions and 6 deletions
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6
src/mainboard/google/rush_ryu/chromeos.c
View File

@ -48,9 +48,9 @@ void fill_lb_gpios(struct lb_gpios *gpios)
/* TODO(adurbin): add lid switch */ /* TODO(adurbin): add lid switch */
/* Power: active low */ /* Power: active low */
gpios->gpios[count].port = POWER_BUTTON_L_INDEX, gpios->gpios[count].port = POWER_BUTTON_INDEX,
gpios->gpios[count].polarity = ACTIVE_LOW; gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = 1; gpios->gpios[count].value = gpio_get_in_value(POWER_BUTTON);
strncpy((char *)gpios->gpios[count].name, "power", strncpy((char *)gpios->gpios[count].name, "power",
GPIO_MAX_NAME_LENGTH); GPIO_MAX_NAME_LENGTH);
count++; count++;

6
src/mainboard/google/rush_ryu/gpio.h
View File

@ -46,10 +46,10 @@ enum {
SPI_1V8_WP_L = GPIO(R1), SPI_1V8_WP_L = GPIO(R1),
WRITE_PROTECT_L = SPI_1V8_WP_L, WRITE_PROTECT_L = SPI_1V8_WP_L,
WRITE_PROTECT_L_INDEX = GPIO_R1_INDEX, WRITE_PROTECT_L_INDEX = GPIO_R1_INDEX,
/* Power Button */ /* Power Button -- actually active high, but the net names are off. */
BTN_AP_PWR_L = GPIO(Q0), BTN_AP_PWR_L = GPIO(Q0),
POWER_BUTTON_L = BTN_AP_PWR_L, POWER_BUTTON = BTN_AP_PWR_L,
POWER_BUTTON_L_INDEX = GPIO_Q0_INDEX, POWER_BUTTON_INDEX = GPIO_Q0_INDEX,
}; };
#endif /* __MAINBOARD_GOOGLE_RUSH_RYU_GPIO_H__ */ #endif /* __MAINBOARD_GOOGLE_RUSH_RYU_GPIO_H__ */

2
src/mainboard/google/rush_ryu/romstage.c
View File

@ -39,6 +39,8 @@ static const struct pad_config padcfgs[] = {
PAD_CFG_GPIO_OUT0(KB_ROW12, PINMUX_PULL_DOWN), PAD_CFG_GPIO_OUT0(KB_ROW12, PINMUX_PULL_DOWN),
/* MDM_DET - expected to be pulled down by LTE modem */ /* MDM_DET - expected to be pulled down by LTE modem */
PAD_CFG_GPIO_INPUT(GPIO_PV1, PINMUX_PULL_UP), PAD_CFG_GPIO_INPUT(GPIO_PV1, PINMUX_PULL_UP),
/* Power Button - active high */
PAD_CFG_GPIO_INPUT(KB_COL0, PINMUX_PULL_UP),
}; };
static const struct pad_config tpm_pads[] = { static const struct pad_config tpm_pads[] = {