iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Davinci: watchdog reset separation across socs

Browse Source 
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>
This commit is contained in:
Cyril Chemparathy
2010-05-01 18:38:28 -04:00
committed by Kevin Hilman
parent 5b3a05ca91
commit c78a5bc2e7
13 changed files with 25 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
arch/arm/mach-davinci/time.c
View File

@ -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;