Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/g…

…it/ycmiao/pxa-linux-2.6 Conflicts: arch/arm/mach-pxa/generic.c arch/arm/mach-pxa/pxa25x.c arch/arm/mach-pxa/pxa27x.c arch/arm/mach-pxa/pxa2xx.c arch/arm/mach-pxa/pxa3xx.c arch/arm/mach-pxa/reset.c arch/arm/mach-pxa/spitz.c arch/arm/mach-pxa/tosa.c drivers/watchdog/sa1100_wdt.c
git-mirror · Aug 7, 2008 · afd2fc0 · afd2fc0
2 parents 1f4de5a + 214c6a7
commit afd2fc0
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Showing 14 changed files with 94 additions and 9 deletions.
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
@@ -26,9 +26,19 @@
 #include <asm/mach/map.h>
 
 #include <mach/pxa-regs.h>
+#include <mach/reset.h>
 
 #include "generic.h"
 
+void clear_reset_status(unsigned int mask)
+{
+	if (cpu_is_pxa2xx())
+		pxa2xx_clear_reset_status(mask);
+
+	if (cpu_is_pxa3xx())
+		pxa3xx_clear_reset_status(mask);
+}
+
 /*
  * Get the clock frequency as reflected by CCCR and the turbo flag.
  * We assume these values have been applied via a fcs.

diff --git a/arch/arm/mach-pxa/generic.h b/arch/arm/mach-pxa/generic.h
@@ -47,12 +47,20 @@ extern unsigned pxa27x_get_memclk_frequency_10khz(void);
 #define pxa27x_get_memclk_frequency_10khz()	(0)
 #endif
 
+#if defined(CONFIG_PXA25x) || defined(CONFIG_PXA27x)
+extern void pxa2xx_clear_reset_status(unsigned int);
+#else
+static inline void pxa2xx_clear_reset_status(unsigned int mask) {}
+#endif
+
 #ifdef CONFIG_PXA3xx
 extern unsigned pxa3xx_get_clk_frequency_khz(int);
 extern unsigned pxa3xx_get_memclk_frequency_10khz(void);
+extern void pxa3xx_clear_reset_status(unsigned int);
 #else
 #define pxa3xx_get_clk_frequency_khz(x)		(0)
 #define pxa3xx_get_memclk_frequency_10khz()	(0)
+static inline void pxa3xx_clear_reset_status(unsigned int mask) {}
 #endif
 
 extern struct sysdev_class pxa_irq_sysclass;

diff --git a/arch/arm/mach-pxa/include/mach/hardware.h b/arch/arm/mach-pxa/include/mach/hardware.h
@@ -224,11 +224,6 @@ extern void pxa_gpio_set_value(unsigned gpio, int value);
  */
 extern unsigned int get_memclk_frequency_10khz(void);
 
-/*
- * register GPIO as reset generator
- */
-extern int init_gpio_reset(int gpio);
-
 #endif
 
 #if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)

diff --git a/arch/arm/mach-pxa/include/mach/reset.h b/arch/arm/mach-pxa/include/mach/reset.h
@@ -0,0 +1,18 @@
+#ifndef __ASM_ARCH_RESET_H
+#define __ASM_ARCH_RESET_H
+
+#define RESET_STATUS_HARDWARE	(1 << 0)	/* Hardware Reset */
+#define RESET_STATUS_WATCHDOG	(1 << 1)	/* Watchdog Reset */
+#define RESET_STATUS_LOWPOWER	(1 << 2)	/* Low Power/Sleep Exit */
+#define RESET_STATUS_GPIO	(1 << 3)	/* GPIO Reset */
+#define RESET_STATUS_ALL	(0xf)
+
+extern unsigned int reset_status;
+extern void clear_reset_status(unsigned int mask);
+
+/*
+ * register GPIO as reset generator
+ */
+extern int init_gpio_reset(int gpio);
+
+#endif /* __ASM_ARCH_RESET_H */
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
@@ -28,6 +28,7 @@
 #include <mach/pxa-regs.h>
 #include <mach/pxa2xx-regs.h>
 #include <mach/mfp-pxa25x.h>
+#include <mach/reset.h>
 #include <mach/pm.h>
 #include <mach/dma.h>
 
@@ -348,6 +349,9 @@ static int __init pxa25x_init(void)
 		clks_register(&pxa25x_hwuart_clk, 1);
 
 	if (cpu_is_pxa21x() || cpu_is_pxa25x()) {
+
+		reset_status = RCSR;
+
 		clks_register(pxa25x_clks, ARRAY_SIZE(pxa25x_clks));
 
 		if ((ret = pxa_init_dma(16)))

diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
@@ -24,6 +24,7 @@
 #include <mach/pxa-regs.h>
 #include <mach/pxa2xx-regs.h>
 #include <mach/mfp-pxa27x.h>
+#include <mach/reset.h>
 #include <mach/ohci.h>
 #include <mach/pm.h>
 #include <mach/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)))

diff --git 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 <mach/hardware.h>
+#include <mach/pxa2xx-regs.h>
 #include <mach/mfp-pxa2xx.h>
 #include <mach/mfp-pxa25x.h>
+#include <mach/reset.h>
 #include <mach/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,

diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
@@ -24,6 +24,7 @@
 
 #include <mach/hardware.h>
 #include <mach/pxa3xx-regs.h>
+#include <mach/reset.h>
 #include <mach/ohci.h>
 #include <mach/pm.h>
 #include <mach/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
 		 *

diff --git a/arch/arm/mach-pxa/reset.c b/arch/arm/mach-pxa/reset.c
@@ -11,7 +11,10 @@
 #include <asm/proc-fns.h>
 
 #include <mach/pxa-regs.h>
-#include <mach/pxa2xx-regs.h>
+#include <mach/reset.h>
+
+unsigned int reset_status;
+EXPORT_SYMBOL(reset_status);
 
 static void do_hw_reset(void);
 
@@ -77,8 +80,7 @@ static void do_hw_reset(void)
 
 void arch_reset(char mode)
 {
-	if (cpu_is_pxa2xx())
-		RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
+	clear_reset_status(RESET_STATUS_ALL);
 
 	switch (mode) {
 	case 's':

diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
@@ -39,6 +39,7 @@
 #include <mach/pxa2xx-regs.h>
 #include <mach/pxa2xx-gpio.h>
 #include <mach/pxa27x-udc.h>
+#include <mach/reset.h>
 #include <mach/irda.h>
 #include <mach/mmc.h>
 #include <mach/ohci.h>

diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
@@ -36,6 +36,7 @@
 #include <asm/mach-types.h>
 #include <mach/pxa2xx-regs.h>
 #include <mach/mfp-pxa25x.h>
+#include <mach/reset.h>
 #include <mach/irda.h>
 #include <mach/i2c.h>
 #include <mach/mmc.h>

diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
@@ -31,6 +31,9 @@
 
 #include "generic.h"
 
+unsigned int reset_status;
+EXPORT_SYMBOL(reset_status);
+
 #define NR_FREQS	16
 
 /*

diff --git a/arch/arm/mach-sa1100/include/mach/reset.h b/arch/arm/mach-sa1100/include/mach/reset.h
@@ -0,0 +1,18 @@
+#ifndef __ASM_ARCH_RESET_H
+#define __ASM_ARCH_RESET_H
+
+#include "hardware.h"
+
+#define RESET_STATUS_HARDWARE	(1 << 0)	/* Hardware Reset */
+#define RESET_STATUS_WATCHDOG	(1 << 1)	/* Watchdog Reset */
+#define RESET_STATUS_LOWPOWER	(1 << 2)	/* Exit from Low Power/Sleep */
+#define RESET_STATUS_GPIO	(1 << 3)	/* GPIO Reset */
+#define RESET_STATUS_ALL	(0xf)
+
+extern unsigned int reset_status;
+static inline void clear_reset_status(unsigned int mask)
+{
+	RCSR = mask;
+}
+
+#endif /* __ASM_ARCH_RESET_H */
diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c
@@ -31,6 +31,7 @@
 #include <mach/pxa-regs.h>
 #endif
 
+#include <mach/reset.h>
 #include <mach/hardware.h>
 #include <asm/uaccess.h>
 
@@ -162,7 +163,8 @@ static int __init sa1100dog_init(void)
 	 * we suspend, RCSR will be cleared, and the watchdog
 	 * reset reason will be lost.
 	 */
-	boot_status = (RCSR & RCSR_WDR) ? WDIOF_CARDRESET : 0;
+	boot_status = (reset_status & RESET_STATUS_WATCHDOG) ?
+				WDIOF_CARDRESET : 0;
 	pre_margin = OSCR_FREQ * margin;
 
 	ret = misc_register(&sa1100dog_miscdev);