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-rw-r--r--arch/arm/plat-iop/io.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/plat-iop/io.c b/arch/arm/plat-iop/io.c
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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>
21#include <asm/hardware.h>
22#include <asm/io.h>
23
24void * __iomem __iop3xx_ioremap(unsigned long cookie, size_t size,
25 unsigned long flags)
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:
37 retval = __ioremap(cookie, size, flags);
38 }
39
40 return retval;
41}
42EXPORT_SYMBOL(__iop3xx_ioremap);
43
44void __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
55skip:
56 return;
57}
58EXPORT_SYMBOL(__iop3xx_iounmap);