lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

system.c: runtime base address

Browse Source 
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer
2009-06-04 12:19:02 +02:00
parent 8db5d1a64d
commit be124c9427
5 changed files with 19 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
arch/arm/plat-mxc/system.c
View File

@@ -30,29 +30,28 @@
#include <asm/proc-fns.h>
#include <asm/system.h>
#ifdef CONFIG_ARCH_MX1
#define WDOG_WCR_REG IO_ADDRESS(WDT_BASE_ADDR)
#define WDOG_WCR_ENABLE (1 << 0)
#else
#define WDOG_WCR_REG IO_ADDRESS(WDOG_BASE_ADDR)
#define WDOG_WCR_ENABLE (1 << 2)
#endif
static void __iomem *wdog_base;
/*
* Reset the system. It is called by machine_restart().
*/
void arch_reset(char mode, const char *cmd)
{
if (!cpu_is_mx1()) {
unsigned int wcr_enable;
if (cpu_is_mx1()) {
wcr_enable = (1 << 0);
} else {
struct clk *clk;
clk = clk_get_sys("imx-wdt.0", NULL);
if (!IS_ERR(clk))
clk_enable(clk);
wcr_enable = (1 << 2);
}
/* Assert SRS signal */
__raw_writew(WDOG_WCR_ENABLE, WDOG_WCR_REG);
__raw_writew(wcr_enable, wdog_base);
/* wait for reset to assert... */
mdelay(500);
@@ -65,3 +64,8 @@ void arch_reset(char mode, const char *cmd)
/* we'll take a jump through zero as a poor second */
cpu_reset(0);
}
void mxc_arch_reset_init(void __iomem *base)
{
wdog_base = base;
}