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-rw-r--r--arch/sh/include/asm/watchdog.h86
1 files changed, 72 insertions, 14 deletions
diff --git a/arch/sh/include/asm/watchdog.h b/arch/sh/include/asm/watchdog.h
index f024fed..85a7aca 100644
--- a/arch/sh/include/asm/watchdog.h
+++ b/arch/sh/include/asm/watchdog.h
@@ -2,6 +2,8 @@
* include/asm-sh/watchdog.h
*
* Copyright (C) 2002, 2003 Paul Mundt
+ * Copyright (C) 2009 Siemens AG
+ * Copyright (C) 2009 Valentin Sitdikov
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -13,10 +15,18 @@
#ifdef __KERNEL__
#include <linux/types.h>
+#include <linux/io.h>
+
+#define WTCNT_HIGH 0x5a
+#define WTCSR_HIGH 0xa5
+
+#define WTCSR_CKS2 0x04
+#define WTCSR_CKS1 0x02
+#define WTCSR_CKS0 0x01
+
#include <cpu/watchdog.h>
-#include <asm/io.h>
-/*
+/*
* See cpu-sh2/watchdog.h for explanation of this stupidity..
*/
#ifndef WTCNT_R
@@ -27,13 +37,6 @@
# define WTCSR_R WTCSR
#endif
-#define WTCNT_HIGH 0x5a
-#define WTCSR_HIGH 0xa5
-
-#define WTCSR_CKS2 0x04
-#define WTCSR_CKS1 0x02
-#define WTCSR_CKS0 0x01
-
/*
* CKS0-2 supports a number of clock division ratios. At the time the watchdog
* is enabled, it defaults to a 41 usec overflow period .. we overload this to
@@ -60,13 +63,68 @@
#define WTCSR_CKS_2048 0x06
#define WTCSR_CKS_4096 0x07
+#if defined(CONFIG_CPU_SUBTYPE_SH7785) || defined(CONFIG_CPU_SUBTYPE_SH7780)
+/**
+ * sh_wdt_read_cnt - Read from Counter
+ * Reads back the WTCNT value.
+ */
+static inline __u32 sh_wdt_read_cnt(void)
+{
+ return __raw_readl(WTCNT_R);
+}
+
+/**
+ * sh_wdt_write_cnt - Write to Counter
+ * @val: Value to write
+ *
+ * Writes the given value @val to the lower byte of the timer counter.
+ * The upper byte is set manually on each write.
+ */
+static inline void sh_wdt_write_cnt(__u32 val)
+{
+ __raw_writel((WTCNT_HIGH << 24) | (__u32)val, WTCNT);
+}
+
+/**
+ * sh_wdt_write_bst - Write to Counter
+ * @val: Value to write
+ *
+ * Writes the given value @val to the lower byte of the timer counter.
+ * The upper byte is set manually on each write.
+ */
+static inline void sh_wdt_write_bst(__u32 val)
+{
+ __raw_writel((WTBST_HIGH << 24) | (__u32)val, WTBST);
+}
+/**
+ * sh_wdt_read_csr - Read from Control/Status Register
+ *
+ * Reads back the WTCSR value.
+ */
+static inline __u32 sh_wdt_read_csr(void)
+{
+ return __raw_readl(WTCSR_R);
+}
+
+/**
+ * sh_wdt_write_csr - Write to Control/Status Register
+ * @val: Value to write
+ *
+ * Writes the given value @val to the lower byte of the control/status
+ * register. The upper byte is set manually on each write.
+ */
+static inline void sh_wdt_write_csr(__u32 val)
+{
+ __raw_writel((WTCSR_HIGH << 24) | (__u32)val, WTCSR);
+}
+#else
/**
* sh_wdt_read_cnt - Read from Counter
* Reads back the WTCNT value.
*/
static inline __u8 sh_wdt_read_cnt(void)
{
- return ctrl_inb(WTCNT_R);
+ return __raw_readb(WTCNT_R);
}
/**
@@ -78,7 +136,7 @@ static inline __u8 sh_wdt_read_cnt(void)
*/
static inline void sh_wdt_write_cnt(__u8 val)
{
- ctrl_outw((WTCNT_HIGH << 8) | (__u16)val, WTCNT);
+ __raw_writew((WTCNT_HIGH << 8) | (__u16)val, WTCNT);
}
/**
@@ -88,7 +146,7 @@ static inline void sh_wdt_write_cnt(__u8 val)
*/
static inline __u8 sh_wdt_read_csr(void)
{
- return ctrl_inb(WTCSR_R);
+ return __raw_readb(WTCSR_R);
}
/**
@@ -100,8 +158,8 @@ static inline __u8 sh_wdt_read_csr(void)
*/
static inline void sh_wdt_write_csr(__u8 val)
{
- ctrl_outw((WTCSR_HIGH << 8) | (__u16)val, WTCSR);
+ __raw_writew((WTCSR_HIGH << 8) | (__u16)val, WTCSR);
}
-
+#endif /* CONFIG_CPU_SUBTYPE_SH7785 || CONFIG_CPU_SUBTYPE_SH7780 */
#endif /* __KERNEL__ */
#endif /* __ASM_SH_WATCHDOG_H */