From 04fef228fb00dd79475a2313f4ba73b4fbfe2faa Mon Sep 17 00:00:00 2001
From: Eric Miao <eric.miao@marvell.com>
Date: Tue, 29 Jul 2008 14:26:00 +0800
Subject: [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>
---
 arch/arm/mach-pxa/pxa2xx.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'arch/arm/mach-pxa/pxa2xx.c')

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,
-- 
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