[net-next-2.6.git] / arch / sh / boards / mach-microdev / io.c

/*
 * linux/arch/sh/boards/superh/microdev/io.c
 *
 * Copyright (C) 2003 Sean McGoogan (Sean.McGoogan@superh.com)
 * Copyright (C) 2003, 2004 SuperH, Inc.
 * Copyright (C) 2004 Paul Mundt
 *
 * SuperH SH4-202 MicroDev board support.
 *
 * May be copied or modified under the terms of the GNU General Public
 * License.  See linux/COPYING for more information.
 */

#include <linux/init.h>
#include <linux/pci.h>
#include <linux/wait.h>
#include <asm/io.h>
#include <mach/microdev.h>

	/*
	 *	we need to have a 'safe' address to re-direct all I/O requests
	 *	that we do not explicitly wish to handle. This safe address
	 *	must have the following properies:
	 *
	 *		* writes are ignored (no exception)
	 *		* reads are benign (no side-effects)
	 *		* accesses of width 1, 2 and 4-bytes are all valid.
	 *
	 *	The Processor Version Register (PVR) has these properties.
	 */
#define	PVR	0xff000030	/* Processor Version Register */


#define	IO_IDE2_BASE		0x170ul	/* I/O base for SMSC FDC37C93xAPM IDE #2 */
#define	IO_IDE1_BASE		0x1f0ul	/* I/O base for SMSC FDC37C93xAPM IDE #1 */
#define IO_ISP1161_BASE		0x290ul /* I/O port for Philips ISP1161x USB chip */
#define IO_SERIAL2_BASE		0x2f8ul /* I/O base for SMSC FDC37C93xAPM Serial #2 */
#define	IO_LAN91C111_BASE	0x300ul	/* I/O base for SMSC LAN91C111 Ethernet chip */
#define	IO_IDE2_MISC		0x376ul	/* I/O misc for SMSC FDC37C93xAPM IDE #2 */
#define IO_SUPERIO_BASE		0x3f0ul /* I/O base for SMSC FDC37C93xAPM SuperIO chip */
#define	IO_IDE1_MISC		0x3f6ul	/* I/O misc for SMSC FDC37C93xAPM IDE #1 */
#define IO_SERIAL1_BASE		0x3f8ul /* I/O base for SMSC FDC37C93xAPM Serial #1 */

#define	IO_ISP1161_EXTENT	0x04ul	/* I/O extent for Philips ISP1161x USB chip */
#define	IO_LAN91C111_EXTENT	0x10ul	/* I/O extent for SMSC LAN91C111 Ethernet chip */
#define	IO_SUPERIO_EXTENT	0x02ul	/* I/O extent for SMSC FDC37C93xAPM SuperIO chip */
#define	IO_IDE_EXTENT		0x08ul	/* I/O extent for IDE Task Register set */
#define IO_SERIAL_EXTENT	0x10ul

#define	IO_LAN91C111_PHYS	0xa7500000ul	/* Physical address of SMSC LAN91C111 Ethernet chip */
#define	IO_ISP1161_PHYS		0xa7700000ul	/* Physical address of Philips ISP1161x USB chip */
#define	IO_SUPERIO_PHYS		0xa7800000ul	/* Physical address of SMSC FDC37C93xAPM SuperIO chip */

/*
 * map I/O ports to memory-mapped addresses
 */
void __iomem *microdev_ioport_map(unsigned long offset, unsigned int len)
{
	unsigned long result;

	if ((offset >= IO_LAN91C111_BASE) &&
	    (offset <  IO_LAN91C111_BASE + IO_LAN91C111_EXTENT)) {
			/*
			 *	SMSC LAN91C111 Ethernet chip
			 */
		result = IO_LAN91C111_PHYS + offset - IO_LAN91C111_BASE;
	} else if ((offset >= IO_SUPERIO_BASE) &&
		   (offset <  IO_SUPERIO_BASE + IO_SUPERIO_EXTENT)) {
			/*
			 *	SMSC FDC37C93xAPM SuperIO chip
			 *
			 *	Configuration Registers
			 */
		result = IO_SUPERIO_PHYS + (offset << 1);
	} else if (((offset >= IO_IDE1_BASE) &&
		    (offset <  IO_IDE1_BASE + IO_IDE_EXTENT)) ||
		    (offset == IO_IDE1_MISC)) {
			/*
			 *	SMSC FDC37C93xAPM SuperIO chip
			 *
			 *	IDE #1
			 */
	        result = IO_SUPERIO_PHYS + (offset << 1);
	} else if (((offset >= IO_IDE2_BASE) &&
		    (offset <  IO_IDE2_BASE + IO_IDE_EXTENT)) ||
		    (offset == IO_IDE2_MISC)) {
			/*
			 *	SMSC FDC37C93xAPM SuperIO chip
			 *
			 *	IDE #2
			 */
	        result = IO_SUPERIO_PHYS + (offset << 1);
	} else if ((offset >= IO_SERIAL1_BASE) &&
		   (offset <  IO_SERIAL1_BASE + IO_SERIAL_EXTENT)) {
			/*
			 *	SMSC FDC37C93xAPM SuperIO chip
			 *
			 *	Serial #1
			 */
		result = IO_SUPERIO_PHYS + (offset << 1);
	} else if ((offset >= IO_SERIAL2_BASE) &&
		   (offset <  IO_SERIAL2_BASE + IO_SERIAL_EXTENT)) {
			/*
			 *	SMSC FDC37C93xAPM SuperIO chip
			 *
			 *	Serial #2
			 */
		result = IO_SUPERIO_PHYS + (offset << 1);
	} else if ((offset >= IO_ISP1161_BASE) &&
		   (offset < IO_ISP1161_BASE + IO_ISP1161_EXTENT)) {
			/*
			 *	Philips USB ISP1161x chip
			 */
		result = IO_ISP1161_PHYS + offset - IO_ISP1161_BASE;
	} else {
			/*
			 *	safe default.
			 */
		printk("Warning: unexpected port in %s( offset = 0x%lx )\n",
		       __func__, offset);
		result = PVR;
	}

	return (void __iomem *)result;
}
Commit	Line	Data
1da177e4	1	/*
f30c2269	2	* linux/arch/sh/boards/superh/microdev/io.c
1da177e4 LT	3	*
	4	* Copyright (C) 2003 Sean McGoogan (Sean.McGoogan@superh.com)
	5	* Copyright (C) 2003, 2004 SuperH, Inc.
	6	* Copyright (C) 2004 Paul Mundt
	7	*
	8	* SuperH SH4-202 MicroDev board support.
	9	*
	10	* May be copied or modified under the terms of the GNU General Public
	11	* License. See linux/COPYING for more information.
	12	*/
	13
1da177e4 LT	14	#include <linux/init.h>
	15	#include <linux/pci.h>
	16	#include <linux/wait.h>
	17	#include <asm/io.h>
7639a454	18	#include <mach/microdev.h>
1da177e4 LT	19
	20	/*
	21	* we need to have a 'safe' address to re-direct all I/O requests
	22	* that we do not explicitly wish to handle. This safe address
	23	* must have the following properies:
	24	*
	25	* * writes are ignored (no exception)
	26	* * reads are benign (no side-effects)
	27	* * accesses of width 1, 2 and 4-bytes are all valid.
	28	*
	29	* The Processor Version Register (PVR) has these properties.
	30	*/
	31	#define PVR 0xff000030 /* Processor Version Register */
	32
	33
	34	#define IO_IDE2_BASE 0x170ul /* I/O base for SMSC FDC37C93xAPM IDE #2 */
	35	#define IO_IDE1_BASE 0x1f0ul /* I/O base for SMSC FDC37C93xAPM IDE #1 */
	36	#define IO_ISP1161_BASE 0x290ul /* I/O port for Philips ISP1161x USB chip */
	37	#define IO_SERIAL2_BASE 0x2f8ul /* I/O base for SMSC FDC37C93xAPM Serial #2 */
	38	#define IO_LAN91C111_BASE 0x300ul /* I/O base for SMSC LAN91C111 Ethernet chip */
	39	#define IO_IDE2_MISC 0x376ul /* I/O misc for SMSC FDC37C93xAPM IDE #2 */
	40	#define IO_SUPERIO_BASE 0x3f0ul /* I/O base for SMSC FDC37C93xAPM SuperIO chip */
	41	#define IO_IDE1_MISC 0x3f6ul /* I/O misc for SMSC FDC37C93xAPM IDE #1 */
	42	#define IO_SERIAL1_BASE 0x3f8ul /* I/O base for SMSC FDC37C93xAPM Serial #1 */
	43
	44	#define IO_ISP1161_EXTENT 0x04ul /* I/O extent for Philips ISP1161x USB chip */
	45	#define IO_LAN91C111_EXTENT 0x10ul /* I/O extent for SMSC LAN91C111 Ethernet chip */
	46	#define IO_SUPERIO_EXTENT 0x02ul /* I/O extent for SMSC FDC37C93xAPM SuperIO chip */
	47	#define IO_IDE_EXTENT 0x08ul /* I/O extent for IDE Task Register set */
	48	#define IO_SERIAL_EXTENT 0x10ul
	49
	50	#define IO_LAN91C111_PHYS 0xa7500000ul /* Physical address of SMSC LAN91C111 Ethernet chip */
	51	#define IO_ISP1161_PHYS 0xa7700000ul /* Physical address of Philips ISP1161x USB chip */
	52	#define IO_SUPERIO_PHYS 0xa7800000ul /* Physical address of SMSC FDC37C93xAPM SuperIO chip */
	53
74017294 PM	54	/*
	55	* map I/O ports to memory-mapped addresses
	56	*/
46bc8587	57	void __iomem *microdev_ioport_map(unsigned long offset, unsigned int len)
74017294 PM	58	{
	59	unsigned long result;
	60
	61	if ((offset >= IO_LAN91C111_BASE) &&
	62	(offset < IO_LAN91C111_BASE + IO_LAN91C111_EXTENT)) {
	63	/*
	64	* SMSC LAN91C111 Ethernet chip
	65	*/
	66	result = IO_LAN91C111_PHYS + offset - IO_LAN91C111_BASE;
	67	} else if ((offset >= IO_SUPERIO_BASE) &&
	68	(offset < IO_SUPERIO_BASE + IO_SUPERIO_EXTENT)) {
	69	/*
	70	* SMSC FDC37C93xAPM SuperIO chip
	71	*
	72	* Configuration Registers
	73	*/
	74	result = IO_SUPERIO_PHYS + (offset << 1);
74017294 PM	75	} else if (((offset >= IO_IDE1_BASE) &&
	76	(offset < IO_IDE1_BASE + IO_IDE_EXTENT)) \|\|
	77	(offset == IO_IDE1_MISC)) {
	78	/*
	79	* SMSC FDC37C93xAPM SuperIO chip
	80	*
	81	* IDE #1
	82	*/
	83	result = IO_SUPERIO_PHYS + (offset << 1);
	84	} else if (((offset >= IO_IDE2_BASE) &&
	85	(offset < IO_IDE2_BASE + IO_IDE_EXTENT)) \|\|
	86	(offset == IO_IDE2_MISC)) {
	87	/*
	88	* SMSC FDC37C93xAPM SuperIO chip
	89	*
	90	* IDE #2
	91	*/
	92	result = IO_SUPERIO_PHYS + (offset << 1);
	93	} else if ((offset >= IO_SERIAL1_BASE) &&
	94	(offset < IO_SERIAL1_BASE + IO_SERIAL_EXTENT)) {
	95	/*
	96	* SMSC FDC37C93xAPM SuperIO chip
	97	*
	98	* Serial #1
	99	*/
	100	result = IO_SUPERIO_PHYS + (offset << 1);
	101	} else if ((offset >= IO_SERIAL2_BASE) &&
	102	(offset < IO_SERIAL2_BASE + IO_SERIAL_EXTENT)) {
	103	/*
	104	* SMSC FDC37C93xAPM SuperIO chip
	105	*
	106	* Serial #2
	107	*/
	108	result = IO_SUPERIO_PHYS + (offset << 1);
	109	} else if ((offset >= IO_ISP1161_BASE) &&
	110	(offset < IO_ISP1161_BASE + IO_ISP1161_EXTENT)) {
	111	/*
	112	* Philips USB ISP1161x chip
	113	*/
	114	result = IO_ISP1161_PHYS + offset - IO_ISP1161_BASE;
	115	} else {
	116	/*
	117	* safe default.
	118	*/
	119	printk("Warning: unexpected port in %s( offset = 0x%lx )\n",
866e6b9e	120	__func__, offset);
74017294 PM	121	result = PVR;
	122	}
	123
46bc8587	124	return (void __iomem *)result;
1da177e4	125	}