diff options
| author | Eric Miao <eric.miao@marvell.com> | 2008-07-29 10:26:00 +0400 |
|---|---|---|
| committer | Eric Miao <eric.miao@marvell.com> | 2008-08-05 05:26:02 +0400 |
| commit | 04fef228fb00dd79475a2313f4ba73b4fbfe2faa (patch) | |
| tree | fee94286fb6b53562e1f9a3c2d6f7f20f8014346 /include/asm-arm/arch-sa1100/reset.h | |
| parent | ab277121426edca2ee0601fc6318c9467350771e (diff) | |
| download | linux-04fef228fb00dd79475a2313f4ba73b4fbfe2faa.tar.xz | |
[ARM] pxa: introduce reset_status and clear_reset_status for driver's usage
Due to the problem of reset status bits being handled by different
registers between pxa2xx and pxa3xx, introduce a global reset_status
variable, initialized by SoC-specific code and later being used by
other drivers.
And also introduce clear_reset_status(), which is used to clear the
corresponding status bits. Pass RESET_STATUS_ALL to clear all bits.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Diffstat (limited to 'include/asm-arm/arch-sa1100/reset.h')
| -rw-r--r-- | include/asm-arm/arch-sa1100/reset.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/asm-arm/arch-sa1100/reset.h b/include/asm-arm/arch-sa1100/reset.h new file mode 100644 index 000000000000..f61957e6842a --- /dev/null +++ b/include/asm-arm/arch-sa1100/reset.h @@ -0,0 +1,18 @@ +#ifndef __ASM_ARCH_RESET_H +#define __ASM_ARCH_RESET_H + +#include "hardware.h" + +#define RESET_STATUS_HARDWARE (1 << 0) /* Hardware Reset */ +#define RESET_STATUS_WATCHDOG (1 << 1) /* Watchdog Reset */ +#define RESET_STATUS_LOWPOWER (1 << 2) /* Exit from Low Power/Sleep */ +#define RESET_STATUS_GPIO (1 << 3) /* GPIO Reset */ +#define RESET_STATUS_ALL (0xf) + +extern unsigned int reset_status; +static inline void clear_reset_status(unsigned int mask) +{ + RCSR = mask; +} + +#endif /* __ASM_ARCH_RESET_H */ |