[linux-2.6-block.git] / arch / arm / plat-iop / io.c

/*
 * iop3xx custom ioremap implementation
 * Copyright (c) 2006, Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307 USA.
 *
 */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/io.h>
#include <mach/hardware.h>

void * __iomem __iop3xx_ioremap(unsigned long cookie, size_t size,
	unsigned int mtype)
{
	void __iomem * retval;

	switch (cookie) {
	case IOP3XX_PCI_LOWER_IO_PA ... IOP3XX_PCI_UPPER_IO_PA:
		retval = (void *) IOP3XX_PCI_IO_PHYS_TO_VIRT(cookie);
		break;
	case IOP3XX_PERIPHERAL_PHYS_BASE ... IOP3XX_PERIPHERAL_UPPER_PA:
		retval = (void *) IOP3XX_PMMR_PHYS_TO_VIRT(cookie);
		break;
	default:
		retval = __arm_ioremap(cookie, size, mtype);
	}

	return retval;
}
EXPORT_SYMBOL(__iop3xx_ioremap);

void __iop3xx_iounmap(void __iomem *addr)
{
	extern void __iounmap(volatile void __iomem *addr);

	switch ((u32) addr) {
	case IOP3XX_PCI_LOWER_IO_VA ... IOP3XX_PCI_UPPER_IO_VA:
	case IOP3XX_PERIPHERAL_VIRT_BASE ... IOP3XX_PERIPHERAL_UPPER_VA:
		goto skip;
	}
	__iounmap(addr);

skip:
	return;
}
EXPORT_SYMBOL(__iop3xx_iounmap);
Commit	Line	Data
6df26700 DW	1	/*
	2	* iop3xx custom ioremap implementation
	3	* Copyright (c) 2006, Intel Corporation.
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms and conditions of the GNU General Public License,
	7	* version 2, as published by the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope it will be useful, but WITHOUT
	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	12	* more details.
	13	*
	14	* You should have received a copy of the GNU General Public License along with
	15	* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
	16	* Place - Suite 330, Boston, MA 02111-1307 USA.
	17	*
	18	*/
	19	#include <linux/kernel.h>
	20	#include <linux/module.h>
fced80c7	21	#include <linux/io.h>
a09e64fb	22	#include <mach/hardware.h>
6df26700 DW	23
6df26700 DW	24	void * __iomem __iop3xx_ioremap(unsigned long cookie, size_t size,
3603ab2b	25	unsigned int mtype)
6df26700 DW	26	{
	27	void __iomem * retval;
	28
	29	switch (cookie) {
	30	case IOP3XX_PCI_LOWER_IO_PA ... IOP3XX_PCI_UPPER_IO_PA:
	31	retval = (void *) IOP3XX_PCI_IO_PHYS_TO_VIRT(cookie);
	32	break;
	33	case IOP3XX_PERIPHERAL_PHYS_BASE ... IOP3XX_PERIPHERAL_UPPER_PA:
	34	retval = (void *) IOP3XX_PMMR_PHYS_TO_VIRT(cookie);
	35	break;
	36	default:
3603ab2b	37	retval = __arm_ioremap(cookie, size, mtype);
6df26700 DW	38	}
	39
	40	return retval;
	41	}
	42	EXPORT_SYMBOL(__iop3xx_ioremap);
	43
	44	void __iop3xx_iounmap(void __iomem *addr)
	45	{
	46	extern void __iounmap(volatile void __iomem *addr);
	47
	48	switch ((u32) addr) {
	49	case IOP3XX_PCI_LOWER_IO_VA ... IOP3XX_PCI_UPPER_IO_VA:
	50	case IOP3XX_PERIPHERAL_VIRT_BASE ... IOP3XX_PERIPHERAL_UPPER_VA:
	51	goto skip;
	52	}
	53	__iounmap(addr);
	54
	55	skip:
	56	return;
	57	}
	58	EXPORT_SYMBOL(__iop3xx_iounmap);