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authorEric Miao <eric.miao@marvell.com>2008-07-29 14:26:00 +0800
committerEric Miao <eric.miao@marvell.com>2008-08-05 09:26:02 +0800
commit04fef228fb00dd79475a2313f4ba73b4fbfe2faa (patch)
treefee94286fb6b53562e1f9a3c2d6f7f20f8014346 /arch/arm/mach-pxa/pxa2xx.c
parentab277121426edca2ee0601fc6318c9467350771e (diff)
downloadblackbird-op-linux-04fef228fb00dd79475a2313f4ba73b4fbfe2faa.tar.gz
blackbird-op-linux-04fef228fb00dd79475a2313f4ba73b4fbfe2faa.zip
[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.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/pxa2xx.c b/arch/arm/mach-pxa/pxa2xx.c
index d4f6415e8413..d93d3e6a6e27 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,
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