From b7bbdbeebd94d63728d6caf12f2c4a670c5f3105 Mon Sep 17 00:00:00 2001 From: Chanho Park Date: Wed, 12 Dec 2012 14:03:54 +0900 Subject: ARM: EXYNOS: Enable PMUs for exynos4 This patch defines irq numbers of ARM performance monitoring unit for exynos4. Firs of all, we need to fix IRQ_PMU correctly and to split pmu initialization of exynos from plat-samsung for easily defining it. The number of CPU cores and PMU irq numbers are vary according to soc types. So, we need to identify each soc type using soc_is_xxx function and to define the pmu irqs dynamically. For example, the exynos4412 has 4 cpu cores and pmus. Signed-off-by: Chanho Park Signed-off-by: Kyungmin Park Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/common.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'arch/arm/mach-exynos/common.c') diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index 02e35abd136b..603fedb80b0c 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -39,6 +39,7 @@ #include #include #include +#include #include #include @@ -850,3 +851,30 @@ static int __init exynos_init_irq_eint(void) return 0; } arch_initcall(exynos_init_irq_eint); + +static struct resource exynos4_pmu_resource[] = { + DEFINE_RES_IRQ(EXYNOS4_IRQ_PMU), + DEFINE_RES_IRQ(EXYNOS4_IRQ_PMU_CPU1), +#if defined(CONFIG_SOC_EXYNOS4412) + DEFINE_RES_IRQ(EXYNOS4_IRQ_PMU_CPU2), + DEFINE_RES_IRQ(EXYNOS4_IRQ_PMU_CPU3), +#endif +}; + +static struct platform_device exynos4_device_pmu = { + .name = "arm-pmu", + .num_resources = ARRAY_SIZE(exynos4_pmu_resource), + .resource = exynos4_pmu_resource, +}; + +static int __init exynos_armpmu_init(void) +{ + if (!of_have_populated_dt()) { + if (soc_is_exynos4210() || soc_is_exynos4212()) + exynos4_device_pmu.num_resources = 2; + platform_device_register(&exynos4_device_pmu); + } + + return 0; +} +arch_initcall(exynos_armpmu_init); -- cgit v1.2.3