diff options
| -rw-r--r-- | target/linux/atheros/files/arch/mips/atheros/ar5315/board.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/target/linux/atheros/files/arch/mips/atheros/ar5315/board.c b/target/linux/atheros/files/arch/mips/atheros/ar5315/board.c index fad5783c5..6ee75a966 100644 --- a/target/linux/atheros/files/arch/mips/atheros/ar5315/board.c +++ b/target/linux/atheros/files/arch/mips/atheros/ar5315/board.c @@ -21,6 +21,7 @@ #include <linux/platform_device.h> #include <linux/kernel.h> #include <linux/reboot.h> +#include <linux/delay.h> #include <asm/bootinfo.h> #include <asm/reboot.h> #include <asm/time.h> @@ -279,15 +280,21 @@ static void ar5315_power_off(void) static void ar5315_restart(char *command) { - for(;;) { - /* reset the system */ - sysRegWrite(AR5315_COLD_RESET,AR5317_RESET_SYSTEM); - - /* - * Cold reset does not work on the AR2315/6, use the GPIO reset bits a workaround. - */ - gpio_direction_output(AR5315_RESET_GPIO, 0); - } + void (*mips_reset_vec)(void) = (void *) 0xbfc00000; + + /* reset the system */ + sysRegWrite(AR5315_COLD_RESET,AR5317_RESET_SYSTEM); + + /* Cold reset does not work on the AR2315/6, use the GPIO reset bits a workaround. + * give it some time to attempt a gpio based hardware reset + * (atheros reference design workaround) */ + gpio_direction_output(AR5315_RESET_GPIO, 0); + mdelay(100); + + /* Some boards (e.g. Senao EOC-2610) don't implement the reset logic + * workaround. Attempt to jump to the mips reset location - + * the boot loader itself might be able to recover the system */ + mips_reset_vec(); } |