Re: [PATCH 2/5] omap4: Enable ARM local timers with OMAP4430 es1.0 exception

Tony Lindgren
2011-02-14T21:08:45Z

* Santosh Shilimkar <santosh.shilimkar@ti.com> [110212 03:28]:
> On OMAP4430 ES1.0 the local timers are gated by security. Enable the
> CONFIG_LOCAL_TIMERS for omap2plus build and handle the OMAP4430 es1.0
> exception case.
>
> This patch has dependency on the first patch in this series.
> ARM: smp: Select local timers vs dummy timer support runtime
>
> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

Acked-by: Tony Lindgren <tony@atomide.com>

> ---
> arch/arm/mach-omap2/Kconfig | 1 +
> arch/arm/mach-omap2/timer-mpu.c | 4 ++++
> 2 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
> index 1a2cf62..f285dd7 100644
> --- a/arch/arm/mach-omap2/Kconfig
> +++ b/arch/arm/mach-omap2/Kconfig
> @@ -44,6 +44,7 @@ config ARCH_OMAP4
> depends on ARCH_OMAP2PLUS
> select CPU_V7
> select ARM_GIC
> + select LOCAL_TIMERS
> select PL310_ERRATA_588369
> select ARM_ERRATA_720789
> select ARCH_HAS_OPP
> diff --git a/arch/arm/mach-omap2/timer-mpu.c b/arch/arm/mach-omap2/timer-mpu.c
> index 09c73dc..31c0ac4 100644
> --- a/arch/arm/mach-omap2/timer-mpu.c
> +++ b/arch/arm/mach-omap2/timer-mpu.c
> @@ -28,6 +28,10 @@
> */
> int __cpuinit local_timer_setup(struct clock_event_device *evt)
> {
> + /* Local timers are not supprted on OMAP4430 ES1.0 */
> + if (omap_rev() == OMAP4430_REV_ES1_0)
> + return -ENXIO;
> +
> evt->irq = OMAP44XX_IRQ_LOCALTIMER;
> twd_timer_setup(evt);
> return 0;
> --
> 1.6.0.4
>