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authorCatalin Marinas <catalin.marinas@arm.com>2007-02-14 19:18:09 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-02-15 14:51:21 +0000
commit3edf22ab34e1fdffc8c0c7c7b7da4d0aebdba118 (patch)
treeded29b4b8f5d624fcc226ef2b8b009838126fe91
parentb3a1bde4db9889feb116330bff21214811c940e4 (diff)
downloadlinux-3edf22ab34e1fdffc8c0c7c7b7da4d0aebdba118.tar.gz
[ARM] 4190/2: Add the secondary GIC support for the RealView/EB
MPCore platform This patch adds the registration of the secondary GIC on the baseboard, together with the IRQ chaining setup. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/mach-realview/realview_eb.c19
-rw-r--r--include/asm-arm/arch-realview/irqs.h5
-rw-r--r--include/asm-arm/arch-realview/platform.h6
3 files changed, 29 insertions, 1 deletions
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index b6a6f68cb699..00139143dcc1 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -57,7 +57,21 @@ static struct map_desc realview_eb_io_desc[] __initdata = {
.pfn = __phys_to_pfn(REALVIEW_GIC_DIST_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
+ },
+#ifdef CONFIG_REALVIEW_MPCORE
+ {
+ .virtual = IO_ADDRESS(REALVIEW_GIC1_CPU_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_GIC1_CPU_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
}, {
+ .virtual = IO_ADDRESS(REALVIEW_GIC1_DIST_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_GIC1_DIST_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+#endif
+ {
.virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
.pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
.length = SZ_4K,
@@ -145,6 +159,11 @@ static void __init gic_init_irq(void)
#endif
gic_dist_init(0, __io_address(REALVIEW_GIC_DIST_BASE), 29);
gic_cpu_init(0, __io_address(REALVIEW_GIC_CPU_BASE));
+#ifdef CONFIG_REALVIEW_MPCORE
+ gic_dist_init(1, __io_address(REALVIEW_GIC1_DIST_BASE), 64);
+ gic_cpu_init(1, __io_address(REALVIEW_GIC1_CPU_BASE));
+ gic_cascade_irq(1, IRQ_EB_IRQ1);
+#endif
}
static void __init realview_eb_init(void)
diff --git a/include/asm-arm/arch-realview/irqs.h b/include/asm-arm/arch-realview/irqs.h
index 76b498eb20a6..5a5db56f86b8 100644
--- a/include/asm-arm/arch-realview/irqs.h
+++ b/include/asm-arm/arch-realview/irqs.h
@@ -78,6 +78,9 @@
#define IRQ_PMU_SCU6 (IRQ_GIC_START + INT_PMU_SCU6)
#define IRQ_PMU_SCU7 (IRQ_GIC_START + INT_PMU_SCU7)
+#define IRQ_EB_IRQ1 (IRQ_GIC_START + INT_EB_IRQ1)
+#define IRQ_EB_IRQ2 (IRQ_GIC_START + INT_EB_IRQ2)
+
#define IRQMASK_WDOGINT INTMASK_WDOGINT
#define IRQMASK_SOFTINT INTMASK_SOFTINT
#define IRQMASK_COMMRx INTMASK_COMMRx
@@ -115,4 +118,4 @@
#define IRQMASK_ETH INTMASK_ETH
#define IRQMASK_USB INTMASK_USB
-#define NR_IRQS (IRQ_GIC_START + 64)
+#define NR_IRQS (IRQ_GIC_START + 96)
diff --git a/include/asm-arm/arch-realview/platform.h b/include/asm-arm/arch-realview/platform.h
index 18d7c18b738c..bf52ca752a75 100644
--- a/include/asm-arm/arch-realview/platform.h
+++ b/include/asm-arm/arch-realview/platform.h
@@ -212,6 +212,8 @@
#define REALVIEW_TWD_BASE 0x10100700
#define REALVIEW_TWD_SIZE 0x00000100
#define REALVIEW_GIC_DIST_BASE 0x10101000 /* Generic interrupt controller distributor */
+#define REALVIEW_GIC1_CPU_BASE 0x10040000 /* Generic interrupt controller CPU interface */
+#define REALVIEW_GIC1_DIST_BASE 0x10041000 /* Generic interrupt controller distributor */
#endif
#define REALVIEW_SMC_BASE 0x10080000 /* SMC */
/* Reserved 0x10090000 - 0x100EFFFF */
@@ -306,7 +308,11 @@
#define INT_USB 29 /* USB controller */
#define INT_TSPENINT 30 /* Touchscreen pen */
#define INT_TSKPADINT 31 /* Touchscreen keypad */
+
#else
+
+#define MAX_GIC_NR 2
+
#define INT_AACI 0
#define INT_TIMERINT0_1 1
#define INT_TIMERINT2_3 2