| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * arch/arm/mach-rpc/include/mach/io.h |
| * |
| * Copyright (C) 1997 Russell King |
| * |
| * 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 |
