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snow: Add support for EC based recovery. 

Implement the get_recovery_mode_switch function using the newly added I2C
based Chrome EC support.

Change-Id: I9d0200629887f202edf017cba3222a7d7f5b053e
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3092
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
This commit is contained in:
Gabe Black 2013-04-15 18:09:15 -07:00
parent a554e23723
commit 7fa726a914
1 changed files with 19 additions and 14 deletions
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33
src/mainboard/google/snow/chromeos.c
View File

@ -18,20 +18,20 @@
*/
#include <console/console.h>
#include <ec/google/chromeec/ec.h>
#include <ec/google/chromeec/ec_commands.h>
#include <string.h>
#include <vendorcode/google/chromeos/chromeos.h>
#include <arch/io.h>
#include <cpu/samsung/exynos5250/cpu.h>
#include <cpu/samsung/exynos5250/gpio.h>
#include <cpu/samsung/exynos5-common/gpio.h>
#include <device/device.h>
#define ACTIVE_LOW 0
#define ACTIVE_HIGH 1
#define WP_GPIO 6
#define DEVMODE_GPIO 54
#define RECMODE_GPIO 0
#define FORCE_RECOVERY_MODE 0
#define FORCE_DEVELOPER_MODE 0
#define LID_OPEN 5
@ -41,17 +41,16 @@
#define GPIO_COUNT 6
static struct exynos5_gpio_part1 *gpio_pt1 =
(struct exynos5_gpio_part1 *)EXYNOS5_GPIO_PART1_BASE;
static struct exynos5_gpio_part2 *gpio_pt2 =
(struct exynos5_gpio_part2 *)EXYNOS5_GPIO_PART2_BASE;
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct exynos5_gpio_part1 *gpio_pt1;
struct exynos5_gpio_part2 *gpio_pt2;
gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio));
gpios->count = GPIO_COUNT;
gpio_pt1 = (struct exynos5_gpio_part1 *)EXYNOS5_GPIO_PART1_BASE;
gpio_pt2 = (struct exynos5_gpio_part2 *)EXYNOS5_GPIO_PART2_BASE;
/* Write Protect: active low */
gpios->gpios[0].port = EXYNOS5_GPD1;
gpios->gpios[0].polarity = ACTIVE_LOW;
@ -60,9 +59,9 @@ void fill_lb_gpios(struct lb_gpios *gpios)
GPIO_MAX_NAME_LENGTH);
/* Recovery: active low */
gpios->gpios[1].port = EXYNOS5_GPY1;
gpios->gpios[1].polarity = ACTIVE_LOW;
gpios->gpios[1].value = s5p_gpio_get_value(&gpio_pt1->y1, FORCE_RECOVERY_MODE);
gpios->gpios[1].port = -1;
gpios->gpios[1].polarity = ACTIVE_HIGH;
gpios->gpios[1].value = get_recovery_mode_switch();
strncpy((char *)gpios->gpios[1].name,"recovery", GPIO_MAX_NAME_LENGTH);
/* Lid: active high */
@ -109,9 +108,15 @@ int get_developer_mode_switch(void)
int get_recovery_mode_switch(void)
{
int ec_rec_mode = 0;
uint32_t ec_events;
return ec_rec_mode;
/* The GPIO is active low. */
if (!s5p_gpio_get_value(&gpio_pt1->y1, RECMODE_GPIO))
return 1;
ec_events = google_chromeec_get_events_b();
return !!(ec_events &
EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY));
}
int get_recovery_mode_from_vbnv(void)