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authorCyril Chemparathy <cyril@ti.com>2010-05-01 18:38:28 -0400
committerKevin Hilman <khilman@deeprootsystems.com>2010-05-06 15:02:09 -0700
commitc78a5bc2e77e8fc5be29cda5b28c9b9afd0f4b6d (patch)
treefc54260054d1b46d9f4e6f47c56952a82ee6b1e4 /arch/arm/mach-davinci/time.c
parent5b3a05ca911688c53680f2b020a1512b9da29c89 (diff)
Davinci: watchdog reset separation across socs
The earlier watchdog reset mechanism had a couple of limitations. First, it embedded a reference to "davinci_wdt_device" inside common code. This forced all derived platforms (da8xx and tnetv107x) to define such a device. This also would have caused problems in including multiple socs in a single build due to symbol redefinition. With this patch, davinci_watchdog_reset() now takes the platform device as an argument. The davinci_soc_info struct has been extended to include a reset function and a watchdog platform_device. arch_reset() then uses these elements to reset the system in a SoC specific fashion. Signed-off-by: Cyril Chemparathy <cyril@ti.com> Tested-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-davinci/time.c')
-rw-r--r--arch/arm/mach-davinci/time.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index b21f7633d9a..e5c598a387b 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -399,13 +399,16 @@ struct sys_timer davinci_timer = {
/* reset board using watchdog timer */
-void davinci_watchdog_reset(void)
+void davinci_watchdog_reset(struct platform_device *pdev)
{
u32 tgcr, wdtcr;
- struct platform_device *pdev = &davinci_wdt_device;
- void __iomem *base = IO_ADDRESS(pdev->resource[0].start);
+ 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;