[ARM] Kirkwood: only map peripheral register space once
[deliverable/linux.git] / arch / arm / mach-kirkwood / include / mach / io.h
CommitLineData
651c74c7 1/*
a09e64fb 2 * arch/arm/mach-kirkwood/include/mach/io.h
651c74c7
SB
3 *
4 * This file is licensed under the terms of the GNU General Public
5 * License version 2. This program is licensed "as is" without any
6 * warranty of any kind, whether express or implied.
7 */
8
9#ifndef __ASM_ARCH_IO_H
10#define __ASM_ARCH_IO_H
11
12#include "kirkwood.h"
13
14#define IO_SPACE_LIMIT 0xffffffff
15
16static inline void __iomem *__io(unsigned long addr)
17{
18 return (void __iomem *)((addr - KIRKWOOD_PCIE_IO_PHYS_BASE)
19 + KIRKWOOD_PCIE_IO_VIRT_BASE);
20}
21
797b2c80
NP
22static inline void __iomem *
23__arch_ioremap(unsigned long paddr, size_t size, unsigned int mtype)
24{
25 void __iomem *retval;
26 unsigned long offs = paddr - KIRKWOOD_REGS_PHYS_BASE;
27 if (mtype == MT_DEVICE && size && offs < KIRKWOOD_REGS_SIZE &&
28 size <= KIRKWOOD_REGS_SIZE && offs + size <= KIRKWOOD_REGS_SIZE) {
29 retval = (void __iomem *)KIRKWOOD_REGS_VIRT_BASE + offs;
30 } else {
31 retval = __arm_ioremap(paddr, size, mtype);
32 }
33
34 return retval;
35}
36
37static inline void
38__arch_iounmap(void __iomem *addr)
39{
40 if (addr < (void __iomem *)KIRKWOOD_REGS_VIRT_BASE ||
41 addr >= (void __iomem *)(KIRKWOOD_REGS_VIRT_BASE + KIRKWOOD_REGS_SIZE))
42 __iounmap(addr);
43}
44
45#define __arch_ioremap(p, s, m) __arch_ioremap(p, s, m)
46#define __arch_iounmap(a) __arch_iounmap(a)
651c74c7
SB
47#define __io(a) __io(a)
48#define __mem_pci(a) (a)
49
50
51#endif
This page took 0.115409 seconds and 5 git commands to generate.