ARM: 6057/1: Realview: register PMU IRQs during board initialisation

This patch updates the initialisation routines for the Realview boards
and the Versatile Express board [ca9x4 tile] so that they register their
PMU IRQs with the PMU framework in the Kernel.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 34 insertions, 0 deletions

diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c
index 5a0449c6f50d..e6f73030d5f0 100644
--- a/arch/arm/mach-vexpress/ct-ca9x4.c
+++ b/arch/arm/mach-vexpress/ct-ca9x4.c
@@ -4,6 +4,7 @@
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/clcd.h>
 
@@ -12,6 +13,7 @@
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/hardware/gic.h>
 #include <asm/mach-types.h>
+#include <asm/pmu.h>
 
 #include <mach/clkdev.h>
 #include <mach/ct-ca9x4.h>
@@ -186,6 +188,36 @@ static struct clk_lookup lookups[] = {
         },
 };
 
+static struct resource pmu_resources[] = {
+        [0] = {
+                .start  = IRQ_CT_CA9X4_PMU_CPU0,
+                .end    = IRQ_CT_CA9X4_PMU_CPU0,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [1] = {
+                .start  = IRQ_CT_CA9X4_PMU_CPU1,
+                .end    = IRQ_CT_CA9X4_PMU_CPU1,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [2] = {
+                .start  = IRQ_CT_CA9X4_PMU_CPU2,
+                .end    = IRQ_CT_CA9X4_PMU_CPU2,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [3] = {
+                .start  = IRQ_CT_CA9X4_PMU_CPU3,
+                .end    = IRQ_CT_CA9X4_PMU_CPU3,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device pmu_device = {
+        .name           = "arm-pmu",
+        .id             = ARM_PMU_DEVICE_CPU,
+        .num_resources  = ARRAY_SIZE(pmu_resources),
+        .resource       = pmu_resources,
+};
+
 static void ct_ca9x4_init(void)
 {
         int i;
@@ -198,6 +230,8 @@ static void ct_ca9x4_init(void)
 
         for (i = 0; i < ARRAY_SIZE(ct_ca9x4_amba_devs); i++)
                 amba_device_register(ct_ca9x4_amba_devs[i], &iomem_resource);
+
+        platform_device_register(&pmu_device);
 }
 
 MACHINE_START(VEXPRESS, "ARM-Versatile Express CA9x4")