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kc1: Boot to bootloader (fastboot) on ID pin pull-up

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USB ID pin pull-up indicates factory (fastboot) cable detection.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
This commit is contained in:
Paul Kocialkowski 2016-02-27 19:19:10 +01:00 committed by Tom Rini
parent 7c0a4b7955
commit bd55eedc07
1 changed files with 9 additions and 0 deletions
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9
board/amazon/kc1/kc1.c
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@ -86,11 +86,20 @@ int board_init(void)
int misc_init_r(void)
{
char reboot_mode[2] = { 0 };
u32 value;
/* Reboot mode */
omap_reboot_mode(reboot_mode, sizeof(reboot_mode));
/* USB ID pin pull-up indicates factory (fastboot) cable detection. */
gpio_request(KC1_GPIO_USB_ID, "USB_ID");
gpio_direction_input(KC1_GPIO_USB_ID);
value = gpio_get_value(KC1_GPIO_USB_ID);
if (value)
reboot_mode[0] = 'b';
if (reboot_mode[0] > 0 && isascii(reboot_mode[0])) {
if (!getenv("reboot-mode"))
setenv("reboot-mode", (char *)reboot_mode);