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| 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/pxa2xx.c | |
| parent | ab277121426edca2ee0601fc6318c9467350771e (diff) | |
| download | op-kernel-dev-04fef228fb00dd79475a2313f4ba73b4fbfe2faa.zip op-kernel-dev-04fef228fb00dd79475a2313f4ba73b4fbfe2faa.tar.gz | |
[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/pxa2xx.c')
| -rw-r--r-- | arch/arm/mach-pxa/pxa2xx.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/pxa2xx.c b/arch/arm/mach-pxa/pxa2xx.c index d4f6415..d93d3e6 100644 --- a/arch/arm/mach-pxa/pxa2xx.c +++ b/arch/arm/mach-pxa/pxa2xx.c @@ -14,10 +14,19 @@ #include <linux/kernel.h> #include <linux/device.h> +#include <asm/hardware.h> +#include <asm/arch/pxa2xx-regs.h> #include <asm/arch/mfp-pxa2xx.h> #include <asm/arch/mfp-pxa25x.h> +#include <asm/arch/reset.h> #include <asm/arch/irda.h> +void pxa2xx_clear_reset_status(unsigned int mask) +{ + /* RESET_STATUS_* has a 1:1 mapping with RCSR */ + RCSR = mask; +} + static unsigned long pxa2xx_mfp_fir[] = { GPIO46_FICP_RXD, GPIO47_FICP_TXD, |
