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authorRichard Cochran <richardcochran@gmail.com>2011-07-15 15:33:12 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-15 21:02:35 -0400
commit900b170af40b4fef54e89f3d48d055f7d8031ae6 (patch)
tree3a7a4fba6d5efd200eeab0eabbaf1d6fd632c894 /arch
parentaf8a927c8bdea82cf220e0b720d64daaf073a969 (diff)
ARM: fix regression in IXP4xx clocksource
Commit 234b6ceddb4fc2a4bc5b9a7670f070f6e69e0868 clocksource: convert ARM 32-bit up counting clocksources broke the build for ixp4xx and made big endian operation impossible. This commit restores the original behaviour. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: Krzysztof HaƂasa <khc@pm.waw.pl> [ Thomas says that we might want to have generic BE accessor functions to the MMIO clock source, but that hasn't happened yet, so in the meantime this seems to be the short-term fix for the particular problem - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-ixp4xx/common.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 74ed81a3cb1a..07772575d7ab 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -419,14 +419,20 @@ static void notrace ixp4xx_update_sched_clock(void)
419/* 419/*
420 * clocksource 420 * clocksource
421 */ 421 */
422
423static cycle_t ixp4xx_clocksource_read(struct clocksource *c)
424{
425 return *IXP4XX_OSTS;
426}
427
422unsigned long ixp4xx_timer_freq = IXP4XX_TIMER_FREQ; 428unsigned long ixp4xx_timer_freq = IXP4XX_TIMER_FREQ;
423EXPORT_SYMBOL(ixp4xx_timer_freq); 429EXPORT_SYMBOL(ixp4xx_timer_freq);
424static void __init ixp4xx_clocksource_init(void) 430static void __init ixp4xx_clocksource_init(void)
425{ 431{
426 init_sched_clock(&cd, ixp4xx_update_sched_clock, 32, ixp4xx_timer_freq); 432 init_sched_clock(&cd, ixp4xx_update_sched_clock, 32, ixp4xx_timer_freq);
427 433
428 clocksource_mmio_init(&IXP4XX_OSTS, "OSTS", ixp4xx_timer_freq, 200, 32, 434 clocksource_mmio_init(NULL, "OSTS", ixp4xx_timer_freq, 200, 32,
429 clocksource_mmio_readl_up); 435 ixp4xx_clocksource_read);
430} 436}
431 437
432/* 438/*