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google/kukui: Set up EC_IN_RW GPIO for ChromeOS 

Set up EC_IN_RW GPIO to boot depthcharge. Without this patch,
depthcharge will fail to tell if the EC firmware is RW.

BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui and see in logs, that depthcharge detects
     EC_IN_RW GPIO.

Change-Id: Icb39d663f65b72e0ad54059c9590d9693106ee25
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/28670
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Tristan Shieh 2018-09-13 19:28:15 +08:00 committed by Patrick Georgi
parent d1d3e62f92
commit 1f64e6aa85
2 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/mainboard/google/kukui/chromeos.c
View File

@ -21,12 +21,14 @@
void setup_chromeos_gpios(void) void setup_chromeos_gpios(void)
{ {
gpio_input_pullup(EC_IN_RW);
gpio_input_pullup(EC_IRQ); gpio_input_pullup(EC_IRQ);
} }
void fill_lb_gpios(struct lb_gpios *gpios) void fill_lb_gpios(struct lb_gpios *gpios)
{ {
struct lb_gpio chromeos_gpios[] = { struct lb_gpio chromeos_gpios[] = {
{EC_IN_RW.id, ACTIVE_HIGH, -1, "EC in RW"},
{EC_IRQ.id, ACTIVE_LOW, -1, "EC interrupt"}, {EC_IRQ.id, ACTIVE_LOW, -1, "EC interrupt"},
}; };
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios)); lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));

3
src/mainboard/google/kukui/gpio.h
View File

@ -18,7 +18,8 @@
#include <soc/gpio.h> #include <soc/gpio.h>
#define EC_IRQ GPIO(PERIPHERAL_EN1) #define EC_IRQ GPIO(PERIPHERAL_EN1)
#define EC_IN_RW GPIO(PERIPHERAL_EN14)
void setup_chromeos_gpios(void); void setup_chromeos_gpios(void);