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clocksource/drivers/h8300: Use ioread / iowrite

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Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Yoshinori Sato
2015-12-05 02:48:18 +09:00
committed by Daniel Lezcano
parent 6f2b611db2
commit d33f250af4
3 changed files with 50 additions and 43 deletions
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28
drivers/clocksource/h8300_timer8.c
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@@ -24,10 +24,16 @@
#define TCORB 6
#define _8TCNT 8
#define CMIEA 6
#define CMFA 6
#define FLAG_STARTED (1 << 3)
#define SCALE 64
#define bset(b, a) iowrite8(ioread8(a) | (1 << (b)), (a))
#define bclr(b, a) iowrite8(ioread8(a) & ~(1 << (b)), (a))
struct timer8_priv {
struct clock_event_device ced;
void __iomem *mapbase;
@@ -40,12 +46,11 @@ static irqreturn_t timer8_interrupt(int irq, void *dev_id)
struct timer8_priv *p = dev_id;
if (clockevent_state_oneshot(&p->ced))
writew(0x0000, p->mapbase + _8TCR);
iowrite16be(0x0000, p->mapbase + _8TCR);
p->ced.event_handler(&p->ced);
writeb(readb(p->mapbase + _8TCSR) & ~0x40,
p->mapbase + _8TCSR);
bclr(CMFA, p->mapbase + _8TCSR);
return IRQ_HANDLED;
}
@@ -54,17 +59,18 @@ static void timer8_set_next(struct timer8_priv *p, unsigned long delta)
{
if (delta >= 0x10000)
pr_warn("delta out of range\n");
writeb(readb(p->mapbase + _8TCR) & ~0x40, p->mapbase + _8TCR);
writew(0, p->mapbase + _8TCNT);
writew(delta, p->mapbase + TCORA);
writeb(readb(p->mapbase + _8TCR) | 0x40, p->mapbase + _8TCR);
bclr(CMIEA, p->mapbase + _8TCR);
iowrite16be(delta, p->mapbase + TCORA);
iowrite16be(0x0000, p->mapbase + _8TCNT);
bclr(CMFA, p->mapbase + _8TCSR);
bset(CMIEA, p->mapbase + _8TCR);
}
static int timer8_enable(struct timer8_priv *p)
{
writew(0xffff, p->mapbase + TCORA);
writew(0x0000, p->mapbase + _8TCNT);
writew(0x0c02, p->mapbase + _8TCR);
iowrite16be(0xffff, p->mapbase + TCORA);
iowrite16be(0x0000, p->mapbase + _8TCNT);
iowrite16be(0x0c02, p->mapbase + _8TCR);
return 0;
}
@@ -85,7 +91,7 @@ static int timer8_start(struct timer8_priv *p)
static void timer8_stop(struct timer8_priv *p)
{
writew(0x0000, p->mapbase + _8TCR);
iowrite16be(0x0000, p->mapbase + _8TCR);
}
static inline struct timer8_priv *ced_to_priv(struct clock_event_device *ced)