[ARM] 3145/1: OMAP 3a/5: Add support for omap24xx

Patch from Tony Lindgren

This patch adds support for omap24xx series of processors.
The files live in arch/arm/mach-omap2, and share common
files with omap15xx and omap16xx processors in
arch/arm/plat-omap.

Omap24xx support was originally added for 2.6.9 by TI.
This code was then improved and integrated to share common
code with omap15xx and omap16xx processors by various
omap developers, such as Paul Mundt, Juha Yrjola, Imre Deak,
Tony Lindgren, Richard Woodruff, Nishant Menon, Komal Shah
et al.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-omap2/io.c

@@ -0,0 +1,53 @@
+/*
+ * linux/arch/arm/mach-omap2/io.c
+ *
+ * OMAP2 I/O mapping code
+ *
+ * Copyright (C) 2005 Nokia Corporation
+ * Author: Juha Yrj<72>l<EFBFBD> <juha.yrjola@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/mach/map.h>
+#include <asm/io.h>
+#include <asm/arch/mux.h>
+
+extern void omap_sram_init(void);
+extern int omap2_clk_init(void);
+extern void omap2_check_revision(void);
+
+/*
+ * The machine specific code may provide the extra mapping besides the
+ * default mapping provided here.
+ */
+static struct map_desc omap2_io_desc[] __initdata = {
+	{
+		.virtual	= L3_24XX_VIRT,
+		.pfn		= __phys_to_pfn(L3_24XX_PHYS),
+		.length		= L3_24XX_SIZE,
+		.type		= MT_DEVICE
+	},
+	{
+		.virtual	= L4_24XX_VIRT,
+		.pfn		= __phys_to_pfn(L4_24XX_PHYS),
+		.length		= L4_24XX_SIZE,
+		.type		= MT_DEVICE
+	}
+};
+
+void __init omap_map_common_io(void)
+{
+	iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc));
+	omap2_check_revision();
+	omap_sram_init();
+	omap2_mux_init();
+	omap2_clk_init();
+}