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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-22 12:37:54 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-02-19 12:11:46 +0100 |
| commit | d77e270c53a4911d23ded9f4ab8b175a3fe3bb34 (patch) | |
| tree | 7ef42283816f32d55389026e51d6e9fdcae84f7a /arch/arm | |
| parent | ARM: realview/vexpress: consolidate SMP bringup code (diff) | |
| download | linux-d77e270c53a4911d23ded9f4ab8b175a3fe3bb34.tar.xz linux-d77e270c53a4911d23ded9f4ab8b175a3fe3bb34.zip | |
ARM: integrator: add Integrator/CP sched_clock support
Integrator/CP has the 24MHz counter which Versatile and later platforms
also have, which we use for sched_clock support. Allow this counter to
be used when building a kernel targetting Integrator/CP alone.
Integrator/AP does not have this counter, so we must exclude support
for the Integrator family when this is enabled.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-integrator/integrator_cp.c | 7 | ||||
| -rw-r--r-- | arch/arm/plat-versatile/Kconfig | 2 |
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c index 05da36f754dd..9e3ce26023e8 100644 --- a/arch/arm/mach-integrator/integrator_cp.c +++ b/arch/arm/mach-integrator/integrator_cp.c @@ -44,6 +44,7 @@ #include <plat/clcd.h> #include <plat/fpga-irq.h> +#include <plat/sched_clock.h> #include "common.h" @@ -440,11 +441,17 @@ static struct amba_device *amba_devs[] __initdata = { &clcd_device, }; +#define REFCOUNTER (__io_address(INTEGRATOR_HDR_BASE) + 0x28) + static void __init intcp_init_early(void) { clkdev_add_table(cp_lookups, ARRAY_SIZE(cp_lookups)); integrator_init_early(); + +#ifdef CONFIG_PLAT_VERSATILE_SCHED_CLOCK + versatile_sched_clock_init(REFCOUNTER, 24000000); +#endif } static void __init intcp_init(void) diff --git a/arch/arm/plat-versatile/Kconfig b/arch/arm/plat-versatile/Kconfig index 0b275008d3e0..52353beb369d 100644 --- a/arch/arm/plat-versatile/Kconfig +++ b/arch/arm/plat-versatile/Kconfig @@ -11,7 +11,7 @@ config PLAT_VERSATILE_LEDS depends on ARCH_REALVIEW || ARCH_VERSATILE config PLAT_VERSATILE_SCHED_CLOCK - def_bool y if !ARCH_INTEGRATOR + def_bool y if !ARCH_INTEGRATOR_AP select HAVE_SCHED_CLOCK endif |