From 5a6e1502ebb11770bcd76de7b00baff6cf467fc1 Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Fri, 13 Jun 2014 11:26:13 +0400 Subject: [PATCH] ARM: i.MX system: Add a reset fallback if base address of watchdog is not set This patch adds a reset fallback if base address of watchdog is not set. This is intended for a targets not compatible with imx-21 watchdog, i.MX1 for example. Signed-off-by: Alexander Shiyan Signed-off-by: Shawn Guo --- arch/arm/mach-imx/system.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c index 92d11c2..d14c33f 100644 --- a/arch/arm/mach-imx/system.c +++ b/arch/arm/mach-imx/system.c @@ -42,6 +42,9 @@ void mxc_restart(enum reboot_mode mode, const char *cmd) { unsigned int wcr_enable; + if (!wdog_base) + goto reset_fallback; + if (!IS_ERR(wdog_clk)) clk_enable(wdog_clk); @@ -70,6 +73,7 @@ void mxc_restart(enum reboot_mode mode, const char *cmd) /* delay to allow the serial port to show the message */ mdelay(50); +reset_fallback: /* we'll take a jump through zero as a poor second */ soft_restart(0); } -- 2.7.4