diff options
Diffstat (limited to 'kernel/arch/m68k/include/asm/mcfpit.h')
| -rw-r--r-- | kernel/arch/m68k/include/asm/mcfpit.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/kernel/arch/m68k/include/asm/mcfpit.h b/kernel/arch/m68k/include/asm/mcfpit.h new file mode 100644 index 000000000..9fd321ca0 --- /dev/null +++ b/kernel/arch/m68k/include/asm/mcfpit.h @@ -0,0 +1,50 @@ +/****************************************************************************/ + +/* + * mcfpit.h -- ColdFire internal PIT timer support defines. + * + * (C) Copyright 2003, Greg Ungerer (gerg@snapgear.com) + */ + +/****************************************************************************/ +#ifndef mcfpit_h +#define mcfpit_h +/****************************************************************************/ + +/* + * Define the PIT timer register address offsets. + */ +#define MCFPIT_PCSR 0x0 /* PIT control register */ +#define MCFPIT_PMR 0x2 /* PIT modulus register */ +#define MCFPIT_PCNTR 0x4 /* PIT count register */ + +/* + * Bit definitions for the PIT Control and Status register. + */ +#define MCFPIT_PCSR_CLK1 0x0000 /* System clock divisor */ +#define MCFPIT_PCSR_CLK2 0x0100 /* System clock divisor */ +#define MCFPIT_PCSR_CLK4 0x0200 /* System clock divisor */ +#define MCFPIT_PCSR_CLK8 0x0300 /* System clock divisor */ +#define MCFPIT_PCSR_CLK16 0x0400 /* System clock divisor */ +#define MCFPIT_PCSR_CLK32 0x0500 /* System clock divisor */ +#define MCFPIT_PCSR_CLK64 0x0600 /* System clock divisor */ +#define MCFPIT_PCSR_CLK128 0x0700 /* System clock divisor */ +#define MCFPIT_PCSR_CLK256 0x0800 /* System clock divisor */ +#define MCFPIT_PCSR_CLK512 0x0900 /* System clock divisor */ +#define MCFPIT_PCSR_CLK1024 0x0a00 /* System clock divisor */ +#define MCFPIT_PCSR_CLK2048 0x0b00 /* System clock divisor */ +#define MCFPIT_PCSR_CLK4096 0x0c00 /* System clock divisor */ +#define MCFPIT_PCSR_CLK8192 0x0d00 /* System clock divisor */ +#define MCFPIT_PCSR_CLK16384 0x0e00 /* System clock divisor */ +#define MCFPIT_PCSR_CLK32768 0x0f00 /* System clock divisor */ +#define MCFPIT_PCSR_DOZE 0x0040 /* Clock run in doze mode */ +#define MCFPIT_PCSR_HALTED 0x0020 /* Clock run in halt mode */ +#define MCFPIT_PCSR_OVW 0x0010 /* Overwrite PIT counter now */ +#define MCFPIT_PCSR_PIE 0x0008 /* Enable PIT interrupt */ +#define MCFPIT_PCSR_PIF 0x0004 /* PIT interrupt flag */ +#define MCFPIT_PCSR_RLD 0x0002 /* Reload counter */ +#define MCFPIT_PCSR_EN 0x0001 /* Enable PIT */ +#define MCFPIT_PCSR_DISABLE 0x0000 /* Disable PIT */ + +/****************************************************************************/ +#endif /* mcfpit_h */ |