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-rw-r--r--include/asm-i386/mach-default/io_ports.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/include/asm-i386/mach-default/io_ports.h b/include/asm-i386/mach-default/io_ports.h
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1/*
2 * arch/i386/mach-generic/io_ports.h
3 *
4 * Machine specific IO port address definition for generic.
5 * Written by Osamu Tomita <tomita@cinet.co.jp>
6 */
7#ifndef _MACH_IO_PORTS_H
8#define _MACH_IO_PORTS_H
9
10/* i8253A PIT registers */
11#define PIT_MODE 0x43
12#define PIT_CH0 0x40
13#define PIT_CH2 0x42
14
15/* i8259A PIC registers */
16#define PIC_MASTER_CMD 0x20
17#define PIC_MASTER_IMR 0x21
18#define PIC_MASTER_ISR PIC_MASTER_CMD
19#define PIC_MASTER_POLL PIC_MASTER_ISR
20#define PIC_MASTER_OCW3 PIC_MASTER_ISR
21#define PIC_SLAVE_CMD 0xa0
22#define PIC_SLAVE_IMR 0xa1
23
24/* i8259A PIC related value */
25#define PIC_CASCADE_IR 2
26#define MASTER_ICW4_DEFAULT 0x01
27#define SLAVE_ICW4_DEFAULT 0x01
28#define PIC_ICW4_AEOI 2
29
30#endif /* !_MACH_IO_PORTS_H */