New patch to review for coreboot: mainboard/google/reef: implement phase enforcement pin

[Aaron Durbin]

Aaron Durbin ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17803

-gerrit

commit 803f841b7924658b334bebe64083beec0958ec6f
Author: Aaron Durbin 
Date:   Mon Dec 12 14:12:22 2016 -0600

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 
---
 src/mainboard/google/reef/variants/baseboard/gpio.c                   | 3 ++-
 src/mainboard/google/reef/variants/baseboard/include/baseboard/gpio.h | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/mainboard/google/reef/variants/baseboard/gpio.c b/src/mainboard/google/reef/variants/baseboard/gpio.c
index ae84e9c..d5e5917 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 ca6aa31..1db7422 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