diff options
Diffstat (limited to 'arch/x86/include/asm/i8254.h')
| -rw-r--r-- | arch/x86/include/asm/i8254.h | 43 |
1 files changed, 20 insertions, 23 deletions
diff --git a/arch/x86/include/asm/i8254.h b/arch/x86/include/asm/i8254.h index 4116de1f07..48e4df25b8 100644 --- a/arch/x86/include/asm/i8254.h +++ b/arch/x86/include/asm/i8254.h @@ -5,38 +5,35 @@ * SPDX-License-Identifier: GPL-2.0+ */ - /* i8254.h Intel 8254 PIT registers */ - #ifndef _ASMI386_I8254_H_ -#define _ASMI386_I8954_H_ 1 - +#define _ASMI386_I8954_H_ -#define PIT_T0 0x00 /* PIT channel 0 count/status */ -#define PIT_T1 0x01 /* PIT channel 1 count/status */ -#define PIT_T2 0x02 /* PIT channel 2 count/status */ -#define PIT_COMMAND 0x03 /* PIT mode control, latch and read back */ +#define PIT_T0 0x00 /* PIT channel 0 count/status */ +#define PIT_T1 0x01 /* PIT channel 1 count/status */ +#define PIT_T2 0x02 /* PIT channel 2 count/status */ +#define PIT_COMMAND 0x03 /* PIT mode control, latch and read back */ /* PIT Command Register Bit Definitions */ -#define PIT_CMD_CTR0 0x00 /* Select PIT counter 0 */ -#define PIT_CMD_CTR1 0x40 /* Select PIT counter 1 */ -#define PIT_CMD_CTR2 0x80 /* Select PIT counter 2 */ +#define PIT_CMD_CTR0 0x00 /* Select PIT counter 0 */ +#define PIT_CMD_CTR1 0x40 /* Select PIT counter 1 */ +#define PIT_CMD_CTR2 0x80 /* Select PIT counter 2 */ -#define PIT_CMD_LATCH 0x00 /* Counter Latch Command */ -#define PIT_CMD_LOW 0x10 /* Access counter bits 7-0 */ -#define PIT_CMD_HIGH 0x20 /* Access counter bits 15-8 */ -#define PIT_CMD_BOTH 0x30 /* Access counter bits 15-0 in two accesses */ +#define PIT_CMD_LATCH 0x00 /* Counter Latch Command */ +#define PIT_CMD_LOW 0x10 /* Access counter bits 7-0 */ +#define PIT_CMD_HIGH 0x20 /* Access counter bits 15-8 */ +#define PIT_CMD_BOTH 0x30 /* Access counter bits 15-0 in two accesses */ -#define PIT_CMD_MODE0 0x00 /* Select mode 0 */ -#define PIT_CMD_MODE1 0x02 /* Select mode 1 */ -#define PIT_CMD_MODE2 0x04 /* Select mode 2 */ -#define PIT_CMD_MODE3 0x06 /* Select mode 3 */ -#define PIT_CMD_MODE4 0x08 /* Select mode 4 */ -#define PIT_CMD_MODE5 0x0A /* Select mode 5 */ +#define PIT_CMD_MODE0 0x00 /* Select mode 0 */ +#define PIT_CMD_MODE1 0x02 /* Select mode 1 */ +#define PIT_CMD_MODE2 0x04 /* Select mode 2 */ +#define PIT_CMD_MODE3 0x06 /* Select mode 3 */ +#define PIT_CMD_MODE4 0x08 /* Select mode 4 */ +#define PIT_CMD_MODE5 0x0a /* Select mode 5 */ /* The clock frequency of the i8253/i8254 PIT */ -#define PIT_TICK_RATE 1193182ul +#define PIT_TICK_RATE 1193182 -#endif +#endif /* _ASMI386_I8954_H_ */ |