omap3: String-based reboot mode handling
This switches reboot mode handling to a string-based interface, that allows more
flexibility to set a common interface with the next generations of OMAP devices.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/cpu/armv7/omap3/boot.c b/arch/arm/cpu/armv7/omap3/boot.c
index 44d7c30..259c210 100644
--- a/arch/arm/cpu/armv7/omap3/boot.c
+++ b/arch/arm/cpu/armv7/omap3/boot.c
@@ -57,11 +57,14 @@
return boot_devices[sys_boot];
}
-char omap_reboot_mode(void)
+int omap_reboot_mode(char *mode, unsigned int length)
{
u32 reboot_mode;
char c;
+ if (length < 2)
+ return -1;
+
reboot_mode = readl((u32 *)(OMAP34XX_SCRATCHPAD + 4));
c = (reboot_mode >> 24) & 0xff;
@@ -74,7 +77,10 @@
c = reboot_mode & 0xff;
- return c;
+ mode[0] = c;
+ mode[1] = '\0';
+
+ return 0;
}
int omap_reboot_mode_clear(void)
@@ -84,11 +90,11 @@
return 0;
}
-int omap_reboot_mode_store(char c)
+int omap_reboot_mode_store(char *mode)
{
u32 reboot_mode;
- reboot_mode = 'B' << 24 | 'M' << 16 | c;
+ reboot_mode = 'B' << 24 | 'M' << 16 | mode[0];
writel(reboot_mode, (u32 *)(OMAP34XX_SCRATCHPAD + 4));