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authorTetsuyuki Kobayashi <koba@kmckk.co.jp>2012-07-20 15:16:30 +0900
committerSimon Horman <horms@verge.net.au>2012-08-25 14:39:44 +0900
commit7952717adb69efc1d2443a1858f96d23c2fb93e0 (patch)
tree8264c9537fe7e1326e7f45140ca97a3bc61072d5 /arch/arm/mach-shmobile
parentfea7a08acb13524b47711625eebea40a0ede69a0 (diff)
ARM: shmobile: kzm9g: enable restarting
Do soft-power-on-reset in sys_reboot system call. How to test this patch Execute "sudo reboot" from command line. The system will start shutdown sequence and finally reboot and U-Boot restarts. Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp> Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'arch/arm/mach-shmobile')
-rw-r--r--arch/arm/mach-shmobile/board-kzm9g.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/board-kzm9g.c b/arch/arm/mach-shmobile/board-kzm9g.c
index 53b7ea92c32c..fd21fb6f9953 100644
--- a/arch/arm/mach-shmobile/board-kzm9g.c
+++ b/arch/arm/mach-shmobile/board-kzm9g.c
@@ -763,6 +763,13 @@ static void __init kzm_init(void)
platform_add_devices(kzm_devices, ARRAY_SIZE(kzm_devices));
}
+static void kzm9g_restart(char mode, const char *cmd)
+{
+#define RESCNT2 0xe6188020
+ /* Do soft power on reset */
+ writel((1 << 31), RESCNT2);
+}
+
static const char *kzm9g_boards_compat_dt[] __initdata = {
"renesas,kzm9g",
NULL,
@@ -777,5 +784,6 @@ DT_MACHINE_START(KZM9G_DT, "kzm9g")
.init_machine = kzm_init,
.init_late = shmobile_init_late,
.timer = &shmobile_timer,
+ .restart = kzm9g_restart,
.dt_compat = kzm9g_boards_compat_dt,
MACHINE_END