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Diffstat (limited to 'include/asm-m68knommu/mcfpit.h')
-rw-r--r-- | include/asm-m68knommu/mcfpit.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/include/asm-m68knommu/mcfpit.h b/include/asm-m68knommu/mcfpit.h new file mode 100644 index 00000000000..4cc2e9fd6ad --- /dev/null +++ b/include/asm-m68knommu/mcfpit.h @@ -0,0 +1,63 @@ +/****************************************************************************/ + +/* + * mcfpit.h -- ColdFire internal PIT timer support defines. + * + * (C) Copyright 2003, Greg Ungerer (gerg@snapgear.com) + */ + +/****************************************************************************/ +#ifndef mcfpit_h +#define mcfpit_h +/****************************************************************************/ + +#include <linux/config.h> + +/* + * Get address specific defines for the 5270/5271 and 5280/5282. + */ +#define MCFPIT_BASE1 0x00150000 /* Base address of TIMER1 */ +#define MCFPIT_BASE2 0x00160000 /* Base address of TIMER2 */ +#define MCFPIT_BASE3 0x00170000 /* Base address of TIMER3 */ +#define MCFPIT_BASE4 0x00180000 /* Base address of TIMER4 */ + + +/* + * Define the PIT timer register set addresses. + */ +struct mcfpit { + unsigned short pcsr; /* PIT control and status */ + unsigned short pmr; /* PIT modulus register */ + unsigned short pcntr; /* PIT count register */ +} __attribute__((packed)); + +/* + * 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 */ |