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google/veyron_rialto: support the developer key GPIO 

Currently (EVT) this is a pullup resistor on the board (i.e. always in
dev mode). Future builds it will be pull down and require servo or HW
modification to control. Either way, this change means the FW should
acknowledge it.

BUG=chrome-os-partner:38663
TEST=Manually verified that servo devmode switch toggles this GPIO. requires FW signing to verify GPIO is observed and dev mode active.
BRANCH=none

Change-Id: Ib05216992abc5f6175fe7395471bd379f185b61f
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 702c8d222a3d19d6b8db89d122dcdf594c85da99
Original-Change-Id: I1d0f31819b9f7a1ab63deac52bcaf0b996499b0c
Original-Reviewed-on: https://chromium-review.googlesource.com/263529
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Original-Tested-by: Jonathan Dixon <joth@chromium.org>
Original-Commit-Queue: Jonathan Dixon <joth@chromium.org>
Reviewed-on: http://review.coreboot.org/9928
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Jonathan Dixon 2015-04-01 14:02:34 -07:00 committed by Patrick Georgi
parent 1e2abe05a8
commit 2580508a11
2 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/mainboard/google/veyron_rialto/Kconfig
View File

@ -35,7 +35,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy
select SPI_FLASH
select SPI_FLASH_GIGADEVICE
select SPI_FLASH_WINBOND
select VIRTUAL_DEV_SWITCH
config MAINBOARD_DIR
string

8
src/mainboard/google/veyron_rialto/chromeos.c
View File

@ -29,6 +29,8 @@
#define GPIO_POWER GPIO(0, A, 5)
#define GPIO_RECOVERY_SERVO GPIO(0, B, 1)
#define GPIO_RECOVERY_PUSHKEY GPIO(7, B, 1)
#define GPIO_DEVELOPER_SWITCH GPIO(7, B, 2)
void setup_chromeos_gpios(void)
{
@ -36,6 +38,7 @@ void setup_chromeos_gpios(void)
gpio_input(GPIO_POWER);
gpio_input_pullup(GPIO_RECOVERY_SERVO);
gpio_input_pullup(GPIO_RECOVERY_PUSHKEY);
gpio_input(GPIO_DEVELOPER_SWITCH); // board has pull up/down resistor.
}
void fill_lb_gpios(struct lb_gpios *gpios)
@ -70,7 +73,7 @@ void fill_lb_gpios(struct lb_gpios *gpios)
count++;
/* Developer: GPIO active high */
gpios->gpios[count].port = -1;
gpios->gpios[count].port = GPIO_DEVELOPER_SWITCH.raw;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_developer_mode_switch();
strncpy((char *)gpios->gpios[count].name, "developer",
@ -93,7 +96,8 @@ void fill_lb_gpios(struct lb_gpios *gpios)
int get_developer_mode_switch(void)
{
return 0;
// GPIO_DEVELOPER_SWITCH is active high.
return gpio_get(GPIO_DEVELOPER_SWITCH);
}
int get_recovery_mode_switch(void)