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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2012-05-15 17:21:26 +1000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2012-05-15 17:21:26 +1000 |
| commit | b29e2679d0da91c60d3ac190d9c3bd65ac2f68c5 (patch) | |
| tree | 518ec8f4bfd316e91bcc30f434edb78529557eba /arch/arm/mach-ux500/timer.c | |
| parent | 8a63b1994c500d4825ee73dc71502deffe5b135b (diff) | |
| parent | 4bb2d1009f671815870e8f78e826e4f9071392a7 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Merge mainline to add prerequisite for ARM ux500 crypto support.
Diffstat (limited to 'arch/arm/mach-ux500/timer.c')
| -rw-r--r-- | arch/arm/mach-ux500/timer.c | 39 |
1 files changed, 29 insertions, 10 deletions
diff --git a/arch/arm/mach-ux500/timer.c b/arch/arm/mach-ux500/timer.c index aea467d04ff..e9d580702fb 100644 --- a/arch/arm/mach-ux500/timer.c +++ b/arch/arm/mach-ux500/timer.c @@ -8,28 +8,46 @@ #include <linux/errno.h> #include <linux/clksrc-dbx500-prcmu.h> -#include <asm/localtimer.h> +#include <asm/smp_twd.h> #include <plat/mtu.h> #include <mach/setup.h> #include <mach/hardware.h> +#include <mach/irqs.h> + +#ifdef CONFIG_HAVE_ARM_TWD +static DEFINE_TWD_LOCAL_TIMER(u5500_twd_local_timer, + U5500_TWD_BASE, IRQ_LOCALTIMER); +static DEFINE_TWD_LOCAL_TIMER(u8500_twd_local_timer, + U8500_TWD_BASE, IRQ_LOCALTIMER); + +static void __init ux500_twd_init(void) +{ + struct twd_local_timer *twd_local_timer; + int err; + + twd_local_timer = cpu_is_u5500() ? &u5500_twd_local_timer : + &u8500_twd_local_timer; + + err = twd_local_timer_register(twd_local_timer); + if (err) + pr_err("twd_local_timer_register failed %d\n", err); +} +#else +#define ux500_twd_init() do { } while(0) +#endif static void __init ux500_timer_init(void) { + void __iomem *mtu_timer_base; void __iomem *prcmu_timer_base; if (cpu_is_u5500()) { -#ifdef CONFIG_LOCAL_TIMERS - twd_base = __io_address(U5500_TWD_BASE); -#endif - mtu_base = __io_address(U5500_MTU0_BASE); + mtu_timer_base = __io_address(U5500_MTU0_BASE); prcmu_timer_base = __io_address(U5500_PRCMU_TIMER_3_BASE); } else if (cpu_is_u8500()) { -#ifdef CONFIG_LOCAL_TIMERS - twd_base = __io_address(U8500_TWD_BASE); -#endif - mtu_base = __io_address(U8500_MTU0_BASE); + mtu_timer_base = __io_address(U8500_MTU0_BASE); prcmu_timer_base = __io_address(U8500_PRCMU_TIMER_4_BASE); } else { ux500_unknown_soc(); @@ -52,8 +70,9 @@ static void __init ux500_timer_init(void) * */ - nmdk_timer_init(); + nmdk_timer_init(mtu_timer_base); clksrc_dbx500_prcmu_init(prcmu_timer_base); + ux500_twd_init(); } static void ux500_timer_reset(void) |