[ARM] 4130/1: Add L220 support to RealView/EB

This patch enables the L220 on the RealView/EB MPCore platform.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-realview/Kconfig

@@ -10,6 +10,7 @@ config MACH_REALVIEW_EB
 config REALVIEW_MPCORE
 	bool "Support MPcore tile"
 	depends on MACH_REALVIEW_EB
+	select CACHE_L2X0
 	help
 	  Enable support for the MPCore tile on the Realview platform.
 	  Since there are device address and interrupt differences, a

arch/arm/mach-realview/realview_eb.c

@@ -31,6 +31,7 @@
 #include <asm/mach-types.h>
 #include <asm/hardware/gic.h>
 #include <asm/hardware/icst307.h>
+#include <asm/hardware/cache-l2x0.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -69,6 +70,11 @@ static struct map_desc realview_eb_io_desc[] __initdata = {
 		.pfn		= __phys_to_pfn(REALVIEW_GIC1_DIST_BASE),
 		.length		= SZ_4K,
 		.type		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(REALVIEW_MPCORE_L220_BASE),
+		.pfn		= __phys_to_pfn(REALVIEW_MPCORE_L220_BASE),
+		.length		= SZ_8K,
+		.type		= MT_DEVICE,
 	},
 #endif
 	{
@@ -170,6 +176,11 @@ static void __init realview_eb_init(void)
 {
 	int i;
 
+#ifdef CONFIG_REALVIEW_MPCORE
+	/* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
+	 * Bits:  .... ...0 0111 1001 0000 .... .... .... */
+	l2x0_init(__io_address(REALVIEW_MPCORE_L220_BASE), 0x00790000, 0xfe000fff);
+#endif
 	clk_register(&realview_clcd_clk);
 
 	platform_device_register(&realview_flash_device);

include/asm-arm/arch-realview/platform.h

@@ -213,6 +213,7 @@
 #define REALVIEW_TWD_BASE		0x10100700
 #define REALVIEW_TWD_SIZE		0x00000100
 #define REALVIEW_GIC_DIST_BASE		0x10101000	/* Generic interrupt controller distributor */
+#define REALVIEW_MPCORE_L220_BASE	0x10102000	/* L220 registers */
 #define REALVIEW_MPCORE_SYS_PLD_CTRL1 0xD8		/*  Register offset for MPCore sysctl */
 #else
 #define REALVIEW_MPCORE_SCU_BASE      0x1F000000	/*  SCU registers */
@@ -220,6 +221,7 @@
 #define REALVIEW_TWD_BASE             0x1F000700
 #define REALVIEW_TWD_SIZE             0x00000100
 #define REALVIEW_GIC_DIST_BASE        0x1F001000	/* Generic interrupt controller distributor */
+#define REALVIEW_MPCORE_L220_BASE     0x1F002000	/* L220 registers */
 #define REALVIEW_MPCORE_SYS_PLD_CTRL1 0x74		/*  Register offset for MPCore sysctl */
 #endif
 #define REALVIEW_GIC1_CPU_BASE        0x10040000	/* Generic interrupt controller CPU interface */