| /****************************************************************************/ |
| |
| /* |
| * 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 */ |
