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[ARM] pxa: introduce reset_status and clear_reset_status for driver's usage

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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>
This commit is contained in:
Eric Miao
2008-07-29 14:26:00 +08:00
parent ab27712142
commit 04fef228fb
10 changed files with 79 additions and 3 deletions
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4
arch/arm/mach-pxa/pxa27x.c
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@@ -24,6 +24,7 @@
#include <asm/arch/pxa-regs.h>
#include <asm/arch/pxa2xx-regs.h>
#include <asm/arch/mfp-pxa27x.h>
#include <asm/arch/reset.h>
#include <asm/arch/ohci.h>
#include <asm/arch/pm.h>
#include <asm/arch/dma.h>
@@ -384,6 +385,9 @@ static int __init pxa27x_init(void)
int i, ret = 0;
if (cpu_is_pxa27x()) {
reset_status = RCSR;
clks_register(pxa27x_clks, ARRAY_SIZE(pxa27x_clks));
if ((ret = pxa_init_dma(32)))