diff options
Diffstat (limited to 'include/asm-i386/mach-default/io_ports.h')
-rw-r--r-- | include/asm-i386/mach-default/io_ports.h | 30 |
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 new file mode 100644 index 000000000000..a96d9f6604ee --- /dev/null +++ b/include/asm-i386/mach-default/io_ports.h | |||
@@ -0,0 +1,30 @@ | |||
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 */ | ||