]>
Commit | Line | Data |
---|---|---|
1 | /* SPDX-License-Identifier: GPL-2.0-only */ | |
2 | /* | |
3 | * arch/arm/mach-rpc/include/mach/io.h | |
4 | * | |
5 | * Copyright (C) 1997 Russell King | |
6 | * | |
7 | * Modifications: | |
8 | * 06-Dec-1997 RMK Created. | |
9 | */ | |
10 | #ifndef __ASM_ARM_ARCH_IO_H | |
11 | #define __ASM_ARM_ARCH_IO_H | |
12 | ||
13 | #include <mach/hardware.h> | |
14 | ||
15 | #define IO_SPACE_LIMIT 0xffff | |
16 | ||
17 | /* | |
18 | * We need PC style IO addressing for: | |
19 | * - floppy (at 0x3f2,0x3f4,0x3f5,0x3f7) | |
20 | * - parport (at 0x278-0x27a, 0x27b-0x27f, 0x778-0x77a) | |
21 | * - 8250 serial (only for compile) | |
22 | * | |
23 | * These peripherals are found in an area of MMIO which looks very much | |
24 | * like an ISA bus, but with registers at the low byte of each word. | |
25 | */ | |
26 | #define __io(a) (PCIO_BASE + ((a) << 2)) | |
27 | ||
28 | #endif |