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veyron_danger: Enable developer mode switch

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Danger has a physical developer mode switch, it was just never
set up. This patch defines it, sets it up in fill_lb_gpios(),
and disables VIRTUAL_DEV_SWITCH.

Note: For now at least, dev mode is a bit wonky on Danger. It's
connected to both a DIP switch and a button. The button is normally
open, pulling dev mode high (defaulting to ON). The switch's "ON"
position will pull the value low, so we invert the value in coreboot
to see the expected behavior. Dev mode is enabled by holding the
button down during boot or by setting switch 2 in the DIP bank to
the ON position.

BUG=none
BRANCH=none
TEST=toggled dev switch on Danger and saw dev screen show up (or
not) as expected

Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/280852
Reviewed-by: Julius Werner <jwerner@chromium.org>
Change-Id: I737f165d7704e2f73375099367f012b365e3e77d
Reviewed-on: https://chromium-review.googlesource.com/284099
This commit is contained in:
David Hendricks 2015-06-03 16:40:16 -07:00 • committed by ChromeOS Commit Bot
commit 49023ce0e8
2 changed files with 6 additions and 5 deletions
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1
src/mainboard/google/veyron_danger/Kconfig
View file

@ -36,7 +36,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy
select SPI_FLASH
select SPI_FLASH_GIGADEVICE
select SPI_FLASH_WINBOND
select VIRTUAL_DEV_SWITCH
config MAINBOARD_DIR
string

10
src/mainboard/google/veyron_danger/chromeos.c
View file

@ -28,11 +28,13 @@
#define GPIO_WP GPIO(7, A, 6)
#define GPIO_POWER GPIO(0, A, 5)
#define GPIO_RECOVERY GPIO(0, B, 1)
#define GPIO_DEV_MODE GPIO(7, B, 2)
void setup_chromeos_gpios(void)
{
gpio_input(GPIO_WP);
gpio_input(GPIO_POWER);
gpio_input(GPIO_DEV_MODE);
gpio_input_pullup(GPIO_RECOVERY);
}
@ -64,9 +66,9 @@ void fill_lb_gpios(struct lb_gpios *gpios)
GPIO_MAX_NAME_LENGTH);
count++;
/* Developer: GPIO active high */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_HIGH;
/* Developer: Danger has a physical dev switch that is active low */
gpios->gpios[count].port = GPIO_DEV_MODE.raw;
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = get_developer_mode_switch();
strncpy((char *)gpios->gpios[count].name, "developer",
GPIO_MAX_NAME_LENGTH);
@ -88,7 +90,7 @@ void fill_lb_gpios(struct lb_gpios *gpios)
int get_developer_mode_switch(void)
{
return 0;
return !gpio_get(GPIO_DEV_MODE);
}
int get_recovery_mode_switch(void)