kc1: Boot to bootloader (fastboot) on ID pin pull-up
USB ID pin pull-up indicates factory (fastboot) cable detection.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
diff --git a/board/amazon/kc1/kc1.c b/board/amazon/kc1/kc1.c
index d526695..9367b50 100644
--- a/board/amazon/kc1/kc1.c
+++ b/board/amazon/kc1/kc1.c
@@ -86,11 +86,20 @@
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);