nyan/rush/veyron: Align ChromeOS GPIOs to new model

This CL makes slight changes to the ChromeOS-specific GPIO definitions
of Tegra and Rockchip boards to prepare them for new features in
depthcharge. It adds descriptions for the EC in RW and reset GPIOs,
changes the value Tegra writes into the (previously unused) 'port' field
to describe the complete GPIO information, and removes code to sample
some GPIOs that don't need to be sampled at coreboot time (to help
depthcharge detect errors and avoid using a stale value for something
that should always represent the current state).

BRANCH=None
BUG=None
TEST=None (tested together with depthcharge patches)

Change-Id: I3774979dbe7cacce4932c85810596d80e5664028
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: df295d0432fbf623597cf36ebb170bd4f63ee08d
Original-Change-Id: I36bb16c8d931f862bf12a5b862b10cf18d738ddd
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/231222
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9570
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

1 files changed, 19 insertions, 2 deletions

diff --git a/src/mainboard/google/veyron_pinky/chromeos.c b/src/mainboard/google/veyron_pinky/chromeos.c
index 8cfad3edcd..83ca70b949 100644
--- a/src/mainboard/google/veyron_pinky/chromeos.c
+++ b/src/mainboard/google/veyron_pinky/chromeos.c
@@ -31,6 +31,7 @@
 #define GPIO_LID	(board_id() > 0 ? GPIO(0, A, 6) : GPIO(7, B, 5))
 #define GPIO_POWER	GPIO(0, A, 5)
 #define GPIO_RECOVERY	GPIO(0, B, 1)
+#define GPIO_ECINRW	GPIO(0, A, 7)
 
 void setup_chromeos_gpios(void)
 {
@@ -63,7 +64,7 @@ void fill_lb_gpios(struct lb_gpios *gpios)
 	/* Lid: active high */
 	gpios->gpios[count].port = GPIO_LID.raw;
 	gpios->gpios[count].polarity = ACTIVE_HIGH;
-	gpios->gpios[count].value = gpio_get(GPIO_LID);
+	gpios->gpios[count].value = -1;
 	strncpy((char *)gpios->gpios[count].name, "lid", GPIO_MAX_NAME_LENGTH);
 	count++;
 
@@ -71,7 +72,7 @@ void fill_lb_gpios(struct lb_gpios *gpios)
 	gpios->gpios[count].port = GPIO_POWER.raw;
 	gpios->gpios[count].polarity = board_id() > 1 ? ACTIVE_LOW :
 							ACTIVE_HIGH;
-	gpios->gpios[count].value = gpio_get(GPIO_POWER);
+	gpios->gpios[count].value = -1;
 	strncpy((char *)gpios->gpios[count].name, "power",
 		GPIO_MAX_NAME_LENGTH);
 	count++;
@@ -84,6 +85,22 @@ void fill_lb_gpios(struct lb_gpios *gpios)
 		GPIO_MAX_NAME_LENGTH);
 	count++;
 
+	/* EC in RW: GPIO active high */
+	gpios->gpios[count].port = GPIO_ECINRW.raw;
+	gpios->gpios[count].polarity = ACTIVE_HIGH;
+	gpios->gpios[count].value = -1;
+	strncpy((char *)gpios->gpios[count].name, "EC in RW",
+		GPIO_MAX_NAME_LENGTH);
+	count++;
+
+	/* Reset: GPIO active high (output) */
+	gpios->gpios[count].port = GPIO_RESET.raw;
+	gpios->gpios[count].polarity = ACTIVE_HIGH;
+	gpios->gpios[count].value = -1;
+	strncpy((char *)gpios->gpios[count].name, "reset",
+		GPIO_MAX_NAME_LENGTH);
+	count++;
+
 	gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio));
 	gpios->count = count;