[PATCH 09/11] watchdog: bcm63xx_wdt: Remove dependency on mach-bcm63xx functions/defines

[Simon Arlott <simon@fire.lp0.eu>]

The bcm_readl() and bcm_writel() functions are only defined for
mach-bcm63xx, replace them with __raw_readl() and raw_writel().

The register defines required for the watchdog are in a mach-bcm63xx
header file. Move them to include/linux/bcm63xx_wdt.h so that they are
also available on other machine types.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
---
 MAINTAINERS                                       |  1 +
 arch/mips/bcm63xx/prom.c                          |  1 +
 arch/mips/bcm63xx/setup.c                         |  1 +
 arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h | 22 --------------------
 drivers/watchdog/bcm63xx_wdt.c                    | 25 +++++++++++------------
 include/linux/bcm63xx_wdt.h                       | 22 ++++++++++++++++++++
 6 files changed, 37 insertions(+), 35 deletions(-)
 create mode 100644 include/linux/bcm63xx_wdt.h

diff --git a/MAINTAINERS b/MAINTAINERS
index cd553a0..a381176 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2376,6 +2376,7 @@ F:	arch/mips/boot/dts/brcm/bcm*.dts*
 F:	drivers/irqchip/irq-bcm63*
 F:	drivers/irqchip/irq-bcm7*
 F:	drivers/irqchip/irq-brcmstb*
+F:	include/linux/bcm63xx_wdt.h
 
 BROADCOM TG3 GIGABIT ETHERNET DRIVER
 M:	Prashant Sreedharan <prashant@broadcom.com>
diff --git a/arch/mips/bcm63xx/prom.c b/arch/mips/bcm63xx/prom.c
index 7019e29..d2800fb 100644
--- a/arch/mips/bcm63xx/prom.c
+++ b/arch/mips/bcm63xx/prom.c
@@ -6,6 +6,7 @@
  * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
  */
 
+#include <linux/bcm63xx_wdt.h>
 #include <linux/init.h>
 #include <linux/bootmem.h>
 #include <linux/smp.h>
diff --git a/arch/mips/bcm63xx/setup.c b/arch/mips/bcm63xx/setup.c
index 2be9caa..181402f 100644
--- a/arch/mips/bcm63xx/setup.c
+++ b/arch/mips/bcm63xx/setup.c
@@ -6,6 +6,7 @@
  * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
  */
 
+#include <linux/bcm63xx_wdt.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
index 5035f09..16a745b 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -441,28 +441,6 @@
 
 
 /*************************************************************************
- * _REG relative to RSET_WDT
- *************************************************************************/
-
-/* Watchdog default count register */
-#define WDT_DEFVAL_REG			0x0
-
-/* Watchdog control register */
-#define WDT_CTL_REG			0x4
-
-/* Watchdog control register constants */
-#define WDT_START_1			(0xff00)
-#define WDT_START_2			(0x00ff)
-#define WDT_STOP_1			(0xee00)
-#define WDT_STOP_2			(0x00ee)
-
-/* Watchdog reset length register */
-#define WDT_RSTLEN_REG			0x8
-
-/* Watchdog soft reset register (BCM6328 only) */
-#define WDT_SOFTRESET_REG		0xc
-
-/*************************************************************************
  * _REG relative to RSET_GPIO
  *************************************************************************/
 
diff --git a/drivers/watchdog/bcm63xx_wdt.c b/drivers/watchdog/bcm63xx_wdt.c
index 2312dc2..f409523 100644
--- a/drivers/watchdog/bcm63xx_wdt.c
+++ b/drivers/watchdog/bcm63xx_wdt.c
@@ -13,6 +13,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/bcm63xx_wdt.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
@@ -27,8 +28,6 @@
 #include <linux/resource.h>
 #include <linux/platform_device.h>
 
-#include <bcm63xx_cpu.h>
-#include <bcm63xx_io.h>
 #include <bcm63xx_regs.h>
 #include <bcm63xx_timer.h>
 
@@ -58,9 +57,9 @@ static int bcm63xx_wdt_start(struct watchdog_device *wdd)
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&hw->lock, flags);
-	bcm_writel(wdd->timeout * hw->clock_hz, hw->regs + WDT_DEFVAL_REG);
-	bcm_writel(WDT_START_1, hw->regs + WDT_CTL_REG);
-	bcm_writel(WDT_START_2, hw->regs + WDT_CTL_REG);
+	__raw_writel(wdd->timeout * hw->clock_hz, hw->regs + WDT_DEFVAL_REG);
+	__raw_writel(WDT_START_1, hw->regs + WDT_CTL_REG);
+	__raw_writel(WDT_START_2, hw->regs + WDT_CTL_REG);
 	hw->running = true;
 	raw_spin_unlock_irqrestore(&hw->lock, flags);
 	return 0;
@@ -72,8 +71,8 @@ static int bcm63xx_wdt_stop(struct watchdog_device *wdd)
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&hw->lock, flags);
-	bcm_writel(WDT_STOP_1, hw->regs + WDT_CTL_REG);
-	bcm_writel(WDT_STOP_2, hw->regs + WDT_CTL_REG);
+	__raw_writel(WDT_STOP_1, hw->regs + WDT_CTL_REG);
+	__raw_writel(WDT_STOP_2, hw->regs + WDT_CTL_REG);
 	hw->running = false;
 	raw_spin_unlock_irqrestore(&hw->lock, flags);
 	return 0;
@@ -108,10 +107,10 @@ static void bcm63xx_wdt_isr(void *data)
 	raw_spin_lock_irqsave(&hw->lock, flags);
 	if (!hw->running) {
 		/* Stop the watchdog as it shouldn't be running */
-		bcm_writel(WDT_STOP_1, hw->regs + WDT_CTL_REG);
-		bcm_writel(WDT_STOP_2, hw->regs + WDT_CTL_REG);
+		__raw_writel(WDT_STOP_1, hw->regs + WDT_CTL_REG);
+		__raw_writel(WDT_STOP_2, hw->regs + WDT_CTL_REG);
 	} else {
-		u32 timeleft = bcm_readl(hw->regs + WDT_CTL_REG);
+		u32 timeleft = __raw_readl(hw->regs + WDT_CTL_REG);
 		u32 ms;
 
 		if (timeleft >= 2) {
@@ -125,9 +124,9 @@ static void bcm63xx_wdt_isr(void *data)
 			 * This is done with a lock held in case userspace is
 			 * trying to restart the watchdog on another CPU.
 			 */
-			bcm_writel(timeleft, hw->regs + WDT_DEFVAL_REG);
-			bcm_writel(WDT_START_1, hw->regs + WDT_CTL_REG);
-			bcm_writel(WDT_START_2, hw->regs + WDT_CTL_REG);
+			__raw_writel(timeleft, hw->regs + WDT_DEFVAL_REG);
+			__raw_writel(WDT_START_1, hw->regs + WDT_CTL_REG);
+			__raw_writel(WDT_START_2, hw->regs + WDT_CTL_REG);
 		} else {
 			/* The watchdog cannot be started with a time of less
 			 * than 2 ticks (it won't fire).
diff --git a/include/linux/bcm63xx_wdt.h b/include/linux/bcm63xx_wdt.h
new file mode 100644
index 0000000..2e9210b
--- /dev/null
+++ b/include/linux/bcm63xx_wdt.h
@@ -0,0 +1,22 @@
+#ifndef LINUX_BCM63XX_WDT_H_
+#define LINUX_BCM63XX_WDT_H_
+
+/* Watchdog default count register */
+#define WDT_DEFVAL_REG                  0x0
+
+/* Watchdog control register */
+#define WDT_CTL_REG                     0x4
+
+/* Watchdog control register constants */
+#define WDT_START_1                     (0xff00)
+#define WDT_START_2                     (0x00ff)
+#define WDT_STOP_1                      (0xee00)
+#define WDT_STOP_2                      (0x00ee)
+
+/* Watchdog reset length register */
+#define WDT_RSTLEN_REG                  0x8
+
+/* Watchdog soft reset register (BCM6328 only) */
+#define WDT_SOFTRESET_REG               0xc
+
+#endif
-- 
2.1.4



-- 
Simon Arlott