| 123456789101112131415161718192021222324252627282930 |
- /*
- * Machine specific IO port address definition for generic.
- * Written by Osamu Tomita <tomita@cinet.co.jp>
- */
- #ifndef _MACH_IO_PORTS_H
- #define _MACH_IO_PORTS_H
- /* i8253A PIT registers */
- #define PIT_MODE 0x43
- #define PIT_CH0 0x40
- #define PIT_CH2 0x42
- /* i8259A PIC registers */
- #define PIC_MASTER_CMD 0x20
- #define PIC_MASTER_IMR 0x21
- #define PIC_MASTER_ISR PIC_MASTER_CMD
- #define PIC_MASTER_POLL PIC_MASTER_ISR
- #define PIC_MASTER_OCW3 PIC_MASTER_ISR
- #define PIC_SLAVE_CMD 0xa0
- #define PIC_SLAVE_IMR 0xa1
- /* i8259A PIC related value */
- #define PIC_CASCADE_IR 2
- #define MASTER_ICW4_DEFAULT 0x01
- #define SLAVE_ICW4_DEFAULT 0x01
- #define PIC_ICW4_AEOI 2
- extern void setup_pit_timer(void);
- #endif /* !_MACH_IO_PORTS_H */
|
