1 /*
2 * arch/arm/mach-kirkwood/include/mach/io.h
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
16 static 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
22 static 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
37 static 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)
47 #define __io(a) __io(a)
48 #define __mem_pci(a) (a)
49
50
51 #endif
52
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