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Commit 8a41fa3b authored by Hans J. Koch's avatar Hans J. Koch Committed by Thomas Gleixner
Browse files

ARM: Basic IO mappings for mach-tcc8k 



Map the IO ranges of TCC8xxx peripherals.

Signed-off-by: default avatar"Hans J. Koch" <hjk@linutronix.de>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 3de7b517

arch/arm/mach-tcc8k/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -3,4 +3,4 @@ 
#



# Common support

obj-y += clock.o irq.o time.o
 
obj-y += clock.o irq.o time.o io.o

arch/arm/mach-tcc8k/common.h

+1 −0
Original line number Diff line number Diff line
@@ -6,5 +6,6 @@ struct clk; 
extern void tcc_clocks_init(unsigned long xi_freq, unsigned long xti_freq);

extern void tcc8k_timer_init(struct clk *clock, void __iomem *base, int irq);

extern void tcc8k_init_irq(void);

extern void tcc8k_map_common_io(void);



#endif

arch/arm/mach-tcc8k/io.c

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+62 −0
Original line number Diff line number Diff line 
/*

 * 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));

}

arch/arm/plat-tcc/include/mach/io.h

0 → 100644
+23 −0
Original line number Diff line number Diff line 
/*

 * IO definitions for TCC8000 processors and boards

 *

 * Copyright (C) 1997-1999 Russell King

 * Copyright (C) 2008-2009 Telechips

 * Copyright (C) 2010 Hans J. Koch <hjk@linutronix.de>

 *

 * Licensed under the terms of the GNU Public License version 2.

 */



#ifndef __ASM_ARM_ARCH_IO_H

#define __ASM_ARM_ARCH_IO_H



#define IO_SPACE_LIMIT 0xffffffff



/*

 * We don't actually have real ISA nor PCI buses, but there is so many

 * drivers out there that might just work if we fake them...

 */

#define __io(a)			__typesafe_io(a)

#define __mem_pci(a)		(a)



#endif