ARM: davinci: remove watchdog reset

This removes the watchdog reset code. The reset has been moved to
drivers/watchdog/davinci_wdt.c. The watchdog driver registers the reset
with the kernel so defining a reset for each machine is no longer needed.

Signed-off-by: David Lechner <david@lechnology.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

1 files changed, 0 insertions, 57 deletions

diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index 034f865fe78e..1bb991ad9c1e 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -80,13 +80,6 @@ enum {
 #define TGCR_UNRESET                 0x1
 #define TGCR_RESET_MASK              0x3
 
-#define WDTCR_WDEN_SHIFT             14
-#define WDTCR_WDEN_DISABLE           0x0
-#define WDTCR_WDEN_ENABLE            0x1
-#define WDTCR_WDKEY_SHIFT            16
-#define WDTCR_WDKEY_SEQ0             0xa5c6
-#define WDTCR_WDKEY_SEQ1             0xda7e
-
 struct timer_s {
 	char *name;
 	unsigned int id;
@@ -409,53 +402,3 @@ void __init davinci_timer_init(void)
 	for (i=0; i< ARRAY_SIZE(timers); i++)
 		timer32_config(&timers[i]);
 }
-
-/* reset board using watchdog timer */
-void davinci_watchdog_reset(struct platform_device *pdev)
-{
-	u32 tgcr, wdtcr;
-	void __iomem *base;
-	struct clk *wd_clk;
-
-	base = ioremap(pdev->resource[0].start, SZ_4K);
-	if (WARN_ON(!base))
-		return;
-
-	wd_clk = clk_get(&pdev->dev, NULL);
-	if (WARN_ON(IS_ERR(wd_clk)))
-		return;
-	clk_prepare_enable(wd_clk);
-
-	/* disable, internal clock source */
-	__raw_writel(0, base + TCR);
-
-	/* reset timer, set mode to 64-bit watchdog, and unreset */
-	tgcr = 0;
-	__raw_writel(tgcr, base + TGCR);
-	tgcr = TGCR_TIMMODE_64BIT_WDOG << TGCR_TIMMODE_SHIFT;
-	tgcr |= (TGCR_UNRESET << TGCR_TIM12RS_SHIFT) |
-		(TGCR_UNRESET << TGCR_TIM34RS_SHIFT);
-	__raw_writel(tgcr, base + TGCR);
-
-	/* clear counter and period regs */
-	__raw_writel(0, base + TIM12);
-	__raw_writel(0, base + TIM34);
-	__raw_writel(0, base + PRD12);
-	__raw_writel(0, base + PRD34);
-
-	/* put watchdog in pre-active state */
-	wdtcr = __raw_readl(base + WDTCR);
-	wdtcr = (WDTCR_WDKEY_SEQ0 << WDTCR_WDKEY_SHIFT) |
-		(WDTCR_WDEN_ENABLE << WDTCR_WDEN_SHIFT);
-	__raw_writel(wdtcr, base + WDTCR);
-
-	/* put watchdog in active state */
-	wdtcr = (WDTCR_WDKEY_SEQ1 << WDTCR_WDKEY_SHIFT) |
-		(WDTCR_WDEN_ENABLE << WDTCR_WDEN_SHIFT);
-	__raw_writel(wdtcr, base + WDTCR);
-
-	/* write an invalid value to the WDKEY field to trigger
-	 * a watchdog reset */
-	wdtcr = 0x00004000;
-	__raw_writel(wdtcr, base + WDTCR);
-}