From 7952717adb69efc1d2443a1858f96d23c2fb93e0 Mon Sep 17 00:00:00 2001 From: Tetsuyuki Kobayashi Date: Fri, 20 Jul 2012 15:16:30 +0900 Subject: [PATCH] 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 Cc: Kuninori Morimoto Signed-off-by: Tetsuyuki Kobayashi Signed-off-by: Simon Horman --- arch/arm/mach-shmobile/board-kzm9g.c | 8 ++++++++ 1 file changed, 8 insertions(+) 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 -- 2.39.5