diff options
| author | Eric Miao <eric.miao@marvell.com> | 2008-07-29 14:26:00 +0800 |
|---|---|---|
| committer | Eric Miao <eric.miao@marvell.com> | 2008-08-05 09:26:02 +0800 |
| commit | 04fef228fb00dd79475a2313f4ba73b4fbfe2faa (patch) | |
| tree | fee94286fb6b53562e1f9a3c2d6f7f20f8014346 /arch/arm/mach-pxa/pxa3xx.c | |
| parent | ab277121426edca2ee0601fc6318c9467350771e (diff) | |
[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 'arch/arm/mach-pxa/pxa3xx.c')
| -rw-r--r-- | arch/arm/mach-pxa/pxa3xx.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c index f491025a0c8..3d36c790f5c 100644 --- a/arch/arm/mach-pxa/pxa3xx.c +++ b/arch/arm/mach-pxa/pxa3xx.c @@ -24,6 +24,7 @@ #include <asm/hardware.h> #include <asm/arch/pxa3xx-regs.h> +#include <asm/arch/reset.h> #include <asm/arch/ohci.h> #include <asm/arch/pm.h> #include <asm/arch/dma.h> @@ -109,6 +110,12 @@ unsigned int pxa3xx_get_memclk_frequency_10khz(void) return (clk / 10000); } +void pxa3xx_clear_reset_status(unsigned int mask) +{ + /* RESET_STATUS_* has a 1:1 mapping with ARSR */ + ARSR = mask; +} + /* * Return the current AC97 clock frequency. */ @@ -532,6 +539,9 @@ static int __init pxa3xx_init(void) int i, ret = 0; if (cpu_is_pxa3xx()) { + + reset_status = ARSR; + /* * clear RDH bit every time after reset * |