diff options
| author | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
|---|---|---|
| committer | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
| commit | 8e4bff4cab0ddac6060645b0715210484d02ff40 (patch) | |
| tree | 3a5c3024371a04692a3a6d9974d001cdff8ebf84 /arch/arm/mach-rpc/include/mach/io.h | |
Diffstat (limited to 'arch/arm/mach-rpc/include/mach/io.h')
| -rw-r--r-- | arch/arm/mach-rpc/include/mach/io.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/mach-rpc/include/mach/io.h b/arch/arm/mach-rpc/include/mach/io.h new file mode 100644 index 00000000..707071a7 --- /dev/null +++ b/arch/arm/mach-rpc/include/mach/io.h @@ -0,0 +1,31 @@ +/* + * arch/arm/mach-rpc/include/mach/io.h + * + * Copyright (C) 1997 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Modifications: + * 06-Dec-1997 RMK Created. + */ +#ifndef __ASM_ARM_ARCH_IO_H +#define __ASM_ARM_ARCH_IO_H + +#include <mach/hardware.h> + +#define IO_SPACE_LIMIT 0xffff + +/* + * We need PC style IO addressing for: + * - floppy (at 0x3f2,0x3f4,0x3f5,0x3f7) + * - parport (at 0x278-0x27a, 0x27b-0x27f, 0x778-0x77a) + * - 8250 serial (only for compile) + * + * These peripherals are found in an area of MMIO which looks very much + * like an ISA bus, but with registers at the low byte of each word. + */ +#define __io(a) (PCIO_BASE + ((a) << 2)) + +#endif |