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ARM: omap1: convert to using readl/writel instead of volatile struct

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Tested-by: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2011-05-09 09:45:45 +01:00
parent 29d668d260
commit 111c7751e3
1 changed files with 16 additions and 15 deletions
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31
arch/arm/mach-omap1/time.c
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@ -68,49 +68,50 @@ typedef struct {
} omap_mpu_timer_regs_t;
#define omap_mpu_timer_base(n) \
((volatile omap_mpu_timer_regs_t*)OMAP1_IO_ADDRESS(OMAP_MPU_TIMER_BASE + \
((omap_mpu_timer_regs_t __iomem *)OMAP1_IO_ADDRESS(OMAP_MPU_TIMER_BASE + \
(n)*OMAP_MPU_TIMER_OFFSET))
static inline unsigned long notrace omap_mpu_timer_read(int nr)
{
volatile omap_mpu_timer_regs_t* timer = omap_mpu_timer_base(nr);
return timer->read_tim;
omap_mpu_timer_regs_t __iomem *timer = omap_mpu_timer_base(nr);
return readl(&timer->read_tim);
}
static inline void omap_mpu_set_autoreset(int nr)
{
volatile omap_mpu_timer_regs_t* timer = omap_mpu_timer_base(nr);
omap_mpu_timer_regs_t __iomem *timer = omap_mpu_timer_base(nr);
timer->cntl = timer->cntl | MPU_TIMER_AR;
writel(readl(&timer->cntl) | MPU_TIMER_AR, &timer->cntl);
}
static inline void omap_mpu_remove_autoreset(int nr)
{
volatile omap_mpu_timer_regs_t* timer = omap_mpu_timer_base(nr);
omap_mpu_timer_regs_t __iomem *timer = omap_mpu_timer_base(nr);
timer->cntl = timer->cntl & ~MPU_TIMER_AR;
writel(readl(&timer->cntl) & ~MPU_TIMER_AR, &timer->cntl);
}
static inline void omap_mpu_timer_start(int nr, unsigned long load_val,
int autoreset)
{
volatile omap_mpu_timer_regs_t* timer = omap_mpu_timer_base(nr);
unsigned int timerflags = (MPU_TIMER_CLOCK_ENABLE | MPU_TIMER_ST);
omap_mpu_timer_regs_t __iomem *timer = omap_mpu_timer_base(nr);
unsigned int timerflags = MPU_TIMER_CLOCK_ENABLE | MPU_TIMER_ST;
if (autoreset) timerflags |= MPU_TIMER_AR;
if (autoreset)
timerflags |= MPU_TIMER_AR;
timer->cntl = MPU_TIMER_CLOCK_ENABLE;
writel(MPU_TIMER_CLOCK_ENABLE, &timer->cntl);
udelay(1);
timer->load_tim = load_val;
writel(load_val, &timer->load_tim);
udelay(1);
timer->cntl = timerflags;
writel(timerflags, &timer->cntl);
}
static inline void omap_mpu_timer_stop(int nr)
{
volatile omap_mpu_timer_regs_t* timer = omap_mpu_timer_base(nr);
omap_mpu_timer_regs_t __iomem *timer = omap_mpu_timer_base(nr);
timer->cntl &= ~MPU_TIMER_ST;
writel(readl(&timer->cntl) & ~MPU_TIMER_ST, &timer->cntl);
}
/*