From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Date: Mon, 12 Oct 2015 06:54:35 +0000 Subject: [RFC v2 4/5] ARM: shmobile: r8a7790: let rst module allow watchdog resets if desired Message-Id: <1444632876-2672-5-git-send-email-wsa@the-dreams.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-sh@vger.kernel.org From: Wolfram Sang Signed-off-by: Wolfram Sang --- arch/arm/mach-shmobile/setup-rcar-gen2.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c index aa3339258d9c02..39976ae23a3df2 100644 --- a/arch/arm/mach-shmobile/setup-rcar-gen2.c +++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c @@ -28,7 +28,18 @@ #include "common.h" #include "rcar-gen2.h" -#define MODEMR 0xe6160060 +#define WDTRSTCR 0xe6160054 +#define MODEMR 0xe6160060 + +void __init rcar_gen2_wdt_rst_init(void) +{ +#if defined(CONFIG_WATCHDOG) + void __iomem *p = ioremap_nocache(WDTRSTCR, 4); + BUG_ON(!p); + iowrite32(0xa55a0000, p); + iounmap(p); +#endif +} u32 rcar_gen2_read_mode_pins(void) { @@ -128,6 +139,10 @@ void __init rcar_gen2_timer_init(void) #endif /* CONFIG_ARM_ARCH_TIMER */ rcar_gen2_clocks_init(mode); + + /* allow watchdog timers to trigger reset */ + rcar_gen2_wdt_rst_init(); + clocksource_of_init(); } -- 2.1.4