diff options
Diffstat (limited to 'arch/arm/mach-imx/system.c')
| -rw-r--r-- | arch/arm/mach-imx/system.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c index 3b0733edb68c..d14c33fd6b03 100644 --- a/arch/arm/mach-imx/system.c +++ b/arch/arm/mach-imx/system.c @@ -42,7 +42,10 @@ void mxc_restart(enum reboot_mode mode, const char *cmd) { unsigned int wcr_enable; - if (wdog_clk) + if (!wdog_base) + goto reset_fallback; + + if (!IS_ERR(wdog_clk)) clk_enable(wdog_clk); if (cpu_is_mx1()) @@ -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); } @@ -79,13 +83,10 @@ void __init mxc_arch_reset_init(void __iomem *base) wdog_base = base; wdog_clk = clk_get_sys("imx2-wdt.0", NULL); - if (IS_ERR(wdog_clk)) { + if (IS_ERR(wdog_clk)) pr_warn("%s: failed to get wdog clock\n", __func__); - wdog_clk = NULL; - return; - } - - clk_prepare(wdog_clk); + else + clk_prepare(wdog_clk); } void __init mxc_arch_reset_init_dt(void) @@ -97,13 +98,10 @@ void __init mxc_arch_reset_init_dt(void) WARN_ON(!wdog_base); wdog_clk = of_clk_get(np, 0); - if (IS_ERR(wdog_clk)) { + if (IS_ERR(wdog_clk)) pr_warn("%s: failed to get wdog clock\n", __func__); - wdog_clk = NULL; - return; - } - - clk_prepare(wdog_clk); + else + clk_prepare(wdog_clk); } #ifdef CONFIG_CACHE_L2X0 |