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@xxxxxxxxxxx> --- 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 63bf54a..a27b99f 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@xxxxxxxxxxxx> 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@xxxxxxxxxx> */ +#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 240fb4f..d1d666d 100644 --- a/arch/mips/bcm63xx/setup.c +++ b/arch/mips/bcm63xx/setup.c @@ -6,6 +6,7 @@ * Copyright (C) 2008 Maxime Bizon <mbizon@xxxxxxxxxx> */ +#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 7109eb4..7522624 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> @@ -55,9 +54,9 @@ 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; @@ -69,8 +68,8 @@ 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; @@ -106,10 +105,10 @@ 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) { @@ -123,9 +122,9 @@ 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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html