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ARM: twd: data endian fix

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Ensure the twd driver uses the correct calls to access the hardware
to ensure that we do not end up with data in the wrong endian format.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
This commit is contained in:
Ben Dooks 2013-02-06 18:44:20 +00:00
parent 76e3faf156
commit 2e874ea342
1 changed files with 12 additions and 12 deletions
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24
arch/arm/kernel/smp_twd.c
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@ -45,7 +45,7 @@ static void twd_set_mode(enum clock_event_mode mode,
case CLOCK_EVT_MODE_PERIODIC:
ctrl = TWD_TIMER_CONTROL_ENABLE | TWD_TIMER_CONTROL_IT_ENABLE
| TWD_TIMER_CONTROL_PERIODIC;
__raw_writel(DIV_ROUND_CLOSEST(twd_timer_rate, HZ),
writel_relaxed(DIV_ROUND_CLOSEST(twd_timer_rate, HZ),
twd_base + TWD_TIMER_LOAD);
break;
case CLOCK_EVT_MODE_ONESHOT:
@ -58,18 +58,18 @@ static void twd_set_mode(enum clock_event_mode mode,
ctrl = 0;
}
__raw_writel(ctrl, twd_base + TWD_TIMER_CONTROL);
writel_relaxed(ctrl, twd_base + TWD_TIMER_CONTROL);
}
static int twd_set_next_event(unsigned long evt,
struct clock_event_device *unused)
{
unsigned long ctrl = __raw_readl(twd_base + TWD_TIMER_CONTROL);
unsigned long ctrl = readl_relaxed(twd_base + TWD_TIMER_CONTROL);
ctrl |= TWD_TIMER_CONTROL_ENABLE;
__raw_writel(evt, twd_base + TWD_TIMER_COUNTER);
__raw_writel(ctrl, twd_base + TWD_TIMER_CONTROL);
writel_relaxed(evt, twd_base + TWD_TIMER_COUNTER);
writel_relaxed(ctrl, twd_base + TWD_TIMER_CONTROL);
return 0;
}
@ -82,8 +82,8 @@ static int twd_set_next_event(unsigned long evt,
*/
static int twd_timer_ack(void)
{
if (__raw_readl(twd_base + TWD_TIMER_INTSTAT)) {
__raw_writel(1, twd_base + TWD_TIMER_INTSTAT);
if (readl_relaxed(twd_base + TWD_TIMER_INTSTAT)) {
writel_relaxed(1, twd_base + TWD_TIMER_INTSTAT);
return 1;
}
@ -211,15 +211,15 @@ static void twd_calibrate_rate(void)
waitjiffies += 5;
/* enable, no interrupt or reload */
__raw_writel(0x1, twd_base + TWD_TIMER_CONTROL);
writel_relaxed(0x1, twd_base + TWD_TIMER_CONTROL);
/* maximum value */
__raw_writel(0xFFFFFFFFU, twd_base + TWD_TIMER_COUNTER);
writel_relaxed(0xFFFFFFFFU, twd_base + TWD_TIMER_COUNTER);
while (get_jiffies_64() < waitjiffies)
udelay(10);
count = __raw_readl(twd_base + TWD_TIMER_COUNTER);
count = readl_relaxed(twd_base + TWD_TIMER_COUNTER);
twd_timer_rate = (0xFFFFFFFFU - count) * (HZ / 5);
@ -277,7 +277,7 @@ static void twd_timer_setup(void)
* bother with the below.
*/
if (per_cpu(percpu_setup_called, cpu)) {
__raw_writel(0, twd_base + TWD_TIMER_CONTROL);
writel_relaxed(0, twd_base + TWD_TIMER_CONTROL);
clockevents_register_device(clk);
enable_percpu_irq(clk->irq, 0);
return;
@ -290,7 +290,7 @@ static void twd_timer_setup(void)
* The following is done once per CPU the first time .setup() is
* called.
*/
__raw_writel(0, twd_base + TWD_TIMER_CONTROL);
writel_relaxed(0, twd_base + TWD_TIMER_CONTROL);
clk->name = "local_timer";
clk->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT |