[ARM] Add support for Realview with MPcore tile

Add uniprocessor support for Realview platform fitted with the
MPcore (SMP) tile.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 14 insertions, 0 deletions

diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig
index 4b63dc9eabfe..129976866d47 100644
--- a/arch/arm/mach-realview/Kconfig
+++ b/arch/arm/mach-realview/Kconfig
@@ -8,4 +8,13 @@ config MACH_REALVIEW_EB
         help
           Include support for the ARM(R) RealView Emulation Baseboard platform.
 
+config REALVIEW_MPCORE
+        bool "Support MPcore tile"
+        depends on MACH_REALVIEW_EB
+        help
+          Enable support for the MPCore tile on the Realview platform.
+          Since there are device address and interrupt differences, a
+          kernel built with this option enabled is not compatible with
+          other tiles.
+
 endmenu
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index 267bb07e39b7..7dc32503fdf2 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -136,6 +136,11 @@ static struct amba_device *amba_devs[] __initdata = {
 
 static void __init gic_init_irq(void)
 {
+#ifdef CONFIG_REALVIEW_MPCORE
+        writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
+        writel(0x008003c0, __io_address(REALVIEW_SYS_BASE) + 0xd8);
+        writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
+#endif
         gic_dist_init(__io_address(REALVIEW_GIC_DIST_BASE));
         gic_cpu_init(__io_address(REALVIEW_GIC_CPU_BASE));
 }