ARM: Add Gemini architecture v3

Adds support for Cortina Systems Gemini family CPUs:
http://www.cortina-systems.com/products/category/18

v3:
- fixed __io(a) to be defined as __typesafe_io(a)

v2:
- #include <asm/io.h> -> <linux/io.h>
- remove asm/system.h include
- revorked mm.c to use named initializers
- removed "empty" dma.h
- updated copyrights

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>

1 files changed, 82 insertions, 0 deletions

diff --git a/arch/arm/mach-gemini/mm.c b/arch/arm/mach-gemini/mm.c
new file mode 100644
index 000000000000..51948242ec09
--- /dev/null
+++ b/arch/arm/mach-gemini/mm.c
@@ -0,0 +1,82 @@
+/*
+ *  Static mappings for Gemini
+ *
+ *  Copyright (C) 2001-2006 Storlink, Corp.
+ *  Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/mm.h>
+#include <linux/init.h>
+
+#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
+
+/* Page table mapping for I/O region */
+static struct map_desc gemini_io_desc[] __initdata = {
+	{
+		.virtual	= IO_ADDRESS(GEMINI_GLOBAL_BASE),
+		.pfn		=__phys_to_pfn(GEMINI_GLOBAL_BASE),
+		.length		= SZ_512K,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(GEMINI_UART_BASE),
+		.pfn		= __phys_to_pfn(GEMINI_UART_BASE),
+		.length		= SZ_512K,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(GEMINI_TIMER_BASE),
+		.pfn		= __phys_to_pfn(GEMINI_TIMER_BASE),
+		.length		= SZ_512K,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(GEMINI_INTERRUPT_BASE),
+		.pfn		= __phys_to_pfn(GEMINI_INTERRUPT_BASE),
+		.length		= SZ_512K,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(GEMINI_POWER_CTRL_BASE),
+		.pfn		= __phys_to_pfn(GEMINI_POWER_CTRL_BASE),
+		.length		= SZ_512K,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(GEMINI_GPIO_BASE(0)),
+		.pfn		= __phys_to_pfn(GEMINI_GPIO_BASE(0)),
+		.length		= SZ_512K,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(GEMINI_GPIO_BASE(1)),
+		.pfn		= __phys_to_pfn(GEMINI_GPIO_BASE(1)),
+		.length		= SZ_512K,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(GEMINI_GPIO_BASE(2)),
+		.pfn		= __phys_to_pfn(GEMINI_GPIO_BASE(2)),
+		.length		= SZ_512K,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(GEMINI_FLASH_CTRL_BASE),
+		.pfn		= __phys_to_pfn(GEMINI_FLASH_CTRL_BASE),
+		.length		= SZ_512K,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(GEMINI_DRAM_CTRL_BASE),
+		.pfn		= __phys_to_pfn(GEMINI_DRAM_CTRL_BASE),
+		.length		= SZ_512K,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(GEMINI_GENERAL_DMA_BASE),
+		.pfn		= __phys_to_pfn(GEMINI_GENERAL_DMA_BASE),
+		.length		= SZ_512K,
+		.type 		= MT_DEVICE,
+	},
+};
+
+void __init gemini_map_io(void)
+{
+	iotable_init(gemini_io_desc, ARRAY_SIZE(gemini_io_desc));
+}