diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2016-12-12 14:12:22 -0600 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2016-12-13 19:52:44 +0100 |
| commit | 76069f34a1c0ce72406f24392e905c547dcd2077 (patch) | |
| tree | 4a5090b6e0a64f6ce8af8241eaae3e82a36520fc /src/mainboard/google/reef | |
| parent | 73deeae2d81ddb7a6ac83a6d2e27db35c2aae177 (diff) | |
mainboard/google/reef: implement phase enforcement pin
On upcoming boards an optional pull up is applied on GPIO_10
to indicate if the board should have security features locked
down for a shipping system. Provide a weak pull down so that
all boards will indicate a logic 0 until the stronger pull up
resistor is stuffed.
BUG=chrome-os-partner:59951
BRANCH=reef
Change-Id: I6f514a69bccd05ca02480f3c30d0ad503a955b1e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/17803
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Diffstat (limited to 'src/mainboard/google/reef')
| -rw-r--r-- | src/mainboard/google/reef/variants/baseboard/gpio.c | 3 | ||||
| -rw-r--r-- | src/mainboard/google/reef/variants/baseboard/include/baseboard/gpio.h | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/src/mainboard/google/reef/variants/baseboard/gpio.c b/src/mainboard/google/reef/variants/baseboard/gpio.c index ae84e9cc9a..d5e5917549 100644 --- a/src/mainboard/google/reef/variants/baseboard/gpio.c +++ b/src/mainboard/google/reef/variants/baseboard/gpio.c @@ -282,7 +282,7 @@ static const struct pad_config gpio_table[] = { PAD_CFG_GPI(GPIO_8, UP_20K, DEEP), PAD_CFG_GPI_APIC_LOW(GPIO_9, NONE, DEEP), /* dTPM IRQ */ - PAD_CFG_GPI(GPIO_10, UP_20K, DEEP), /* unused */ + PAD_CFG_GPI(GPIO_10, DN_20K, DEEP), /* Board phase enforcement */ PAD_CFG_GPI_SCI_LOW(GPIO_11, NONE, DEEP, EDGE_SINGLE), /* EC SCI */ PAD_CFG_GPI(GPIO_12, UP_20K, DEEP), /* unused */ PAD_CFG_GPI_APIC_LOW(GPIO_13, UP_20K, DEEP), /* PEN_INT_ODL */ @@ -381,6 +381,7 @@ variant_sleep_gpio_table(size_t *num) static const struct cros_gpio cros_gpios[] = { CROS_GPIO_REC_AL(CROS_GPIO_VIRTUAL, GPIO_COMM_NW_NAME), CROS_GPIO_WP_AH(PAD_NW(GPIO_PCH_WP), GPIO_COMM_NW_NAME), + CROS_GPIO_PE_AH(PAD_N(GPIO_SHIP_MODE), GPIO_COMM_N_NAME), }; const struct cros_gpio * __attribute__((weak)) variant_cros_gpios(size_t *num) diff --git a/src/mainboard/google/reef/variants/baseboard/include/baseboard/gpio.h b/src/mainboard/google/reef/variants/baseboard/include/baseboard/gpio.h index ca6aa31f34..1db742240d 100644 --- a/src/mainboard/google/reef/variants/baseboard/include/baseboard/gpio.h +++ b/src/mainboard/google/reef/variants/baseboard/include/baseboard/gpio.h @@ -38,6 +38,8 @@ /* Write Protect and indication if EC is in RW code. */ #define GPIO_PCH_WP GPIO_75 #define GPIO_EC_IN_RW GPIO_41 +/* Determine if board is in final shipping mode. */ +#define GPIO_SHIP_MODE GPIO_10 /* Memory SKU GPIOs. */ #define MEM_CONFIG3 GPIO_45 |