ARM: Basic IO mappings for mach-tcc8k

Map the IO ranges of TCC8xxx peripherals.

Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 62 insertions, 0 deletions

diff --git a/arch/arm/mach-tcc8k/io.c b/arch/arm/mach-tcc8k/io.c
new file mode 100644
index 000000000000..9b39d7fa658f
--- /dev/null
+++ b/arch/arm/mach-tcc8k/io.c
@@ -0,0 +1,62 @@
+/*
+ * linux/arch/arm/mach-tcc8k/io.c
+ *
+ * (C) 2009 Hans J. Koch <hjk@linutronix.de>
+ *
+ * derived from TCC83xx io.c
+ * Copyright (C) Telechips, Inc.
+ *
+ * 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/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+
+#include <asm/mach/map.h>
+
+#include <mach/tcc8k-regs.h>
+
+/*
+ * The machine specific code may provide the extra mapping besides the
+ * default mapping provided here.
+ */
+static struct map_desc tcc8k_io_desc[] __initdata = {
+	{
+		.virtual	= (unsigned long)CS1_BASE_VIRT,
+		.pfn		= __phys_to_pfn(CS1_BASE),
+		.length		= CS1_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)AHB_PERI_BASE_VIRT,
+		.pfn		= __phys_to_pfn(AHB_PERI_BASE),
+		.length		= AHB_PERI_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)APB0_PERI_BASE_VIRT,
+		.pfn		= __phys_to_pfn(APB0_PERI_BASE),
+		.length		= APB0_PERI_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)APB1_PERI_BASE_VIRT,
+		.pfn		= __phys_to_pfn(APB1_PERI_BASE),
+		.length		= APB1_PERI_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)EXT_MEM_CTRL_BASE_VIRT,
+		.pfn		= __phys_to_pfn(EXT_MEM_CTRL_BASE),
+		.length		= EXT_MEM_CTRL_SIZE,
+		.type		= MT_DEVICE,
+	},
+};
+
+/*
+ * Maps common IO regions for tcc8k.
+ *
+ */
+void __init tcc8k_map_common_io(void)
+{
+	iotable_init(tcc8k_io_desc, ARRAY_SIZE(tcc8k_io_desc));
+}