devkit8000: Implement and activate direct OS boot
- Implements spl_start_uboot() for devkit8000
- Add configs to activate direct OS boot from SPL
Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com>
CC: Tom Rini <tom.rini@gmail.com>
CC: Stefano Babic <sbabic@denx.de>
CC: Wolfgang Denk <wd@denx.de>
diff --git a/board/timll/devkit8000/devkit8000.c b/board/timll/devkit8000/devkit8000.c
index dded697..d75e86b 100644
--- a/board/timll/devkit8000/devkit8000.c
+++ b/board/timll/devkit8000/devkit8000.c
@@ -41,6 +41,7 @@
#include <asm/arch/mem.h>
#include <asm/mach-types.h>
#include "devkit8000.h"
+#include <asm/gpio.h>
#ifdef CONFIG_DRIVER_DM9000
#include <net.h>
#include <netdev.h>
@@ -161,6 +162,23 @@
gpmc_dm9000_config();
}
+/*
+ * devkit8000 specific implementation of spl_start_uboot()
+ *
+ * RETURN
+ * 0 if the button is not pressed
+ * 1 if the button is pressed
+ */
+int spl_start_uboot(void)
+{
+ int val = 0;
+ if (!gpio_request(CONFIG_SPL_OS_BOOT_KEY, "U-Boot key")) {
+ gpio_direction_input(CONFIG_SPL_OS_BOOT_KEY);
+ val = gpio_get_value(CONFIG_SPL_OS_BOOT_KEY);
+ gpio_free(CONFIG_SPL_OS_BOOT_KEY);
+ }
+ return !val;
+}
#endif
/*