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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/arm/mach-rpc/include/mach/io.h | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-rpc/include/mach/io.h')
| -rw-r--r-- | arch/arm/mach-rpc/include/mach/io.h | 28 |
1 files changed, 28 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 000000000..8a8f28406 --- /dev/null +++ b/arch/arm/mach-rpc/include/mach/io.h @@ -0,0 +1,28 @@ +/* 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 |