[PATCH] ARM: shmobile: kzm9g: enable restarting
From: Simon Horman <horms@verge.net.au>
Date: 2012-08-28 00:18:36
Also in:
linux-arm-kernel
Subsystem:
arm port, arm/risc-v/renesas architecture, the rest · Maintainers:
Russell King, Geert Uytterhoeven, Magnus Damm, Linus Torvalds
From: Tetsuyuki Kobayashi <redacted> 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 <redacted> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Tetsuyuki Kobayashi <redacted> Signed-off-by: Simon Horman <horms@verge.net.au> --- 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 53b7ea9..fd21fb6 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
--
1.7.10.2.484.gcd07cc5