Linux 2.6.21.1
[linux/fpc-iii.git] / include / asm-m68knommu / mcfmbus.h
blob319899c47a2c96d1457293ba5676da554d994387
1 /****************************************************************************/
3 /*
4 * mcfmbus.h -- Coldfire MBUS support defines.
6 * (C) Copyright 1999, Martin Floeer (mfloeer@axcent.de)
7 */
9 /****************************************************************************/
12 #ifndef mcfmbus_h
13 #define mcfmbus_h
16 #define MCFMBUS_BASE 0x280
17 #define MCFMBUS_IRQ_VECTOR 0x19
18 #define MCFMBUS_IRQ 0x1
19 #define MCFMBUS_CLK 0x3f
20 #define MCFMBUS_IRQ_LEVEL 0x07 /*IRQ Level 1*/
21 #define MCFMBUS_ADDRESS 0x01
25 * Define the 5307 MBUS register set addresses
28 #define MCFMBUS_MADR 0x00
29 #define MCFMBUS_MFDR 0x04
30 #define MCFMBUS_MBCR 0x08
31 #define MCFMBUS_MBSR 0x0C
32 #define MCFMBUS_MBDR 0x10
35 #define MCFMBUS_MADR_ADDR(a) (((a)&0x7F)<<0x01) /*Slave Address*/
37 #define MCFMBUS_MFDR_MBC(a) ((a)&0x3F) /*M-Bus Clock*/
40 * Define bit flags in Control Register
43 #define MCFMBUS_MBCR_MEN (0x80) /* M-Bus Enable */
44 #define MCFMBUS_MBCR_MIEN (0x40) /* M-Bus Interrupt Enable */
45 #define MCFMBUS_MBCR_MSTA (0x20) /* Master/Slave Mode Select Bit */
46 #define MCFMBUS_MBCR_MTX (0x10) /* Transmit/Rcv Mode Select Bit */
47 #define MCFMBUS_MBCR_TXAK (0x08) /* Transmit Acknowledge Enable */
48 #define MCFMBUS_MBCR_RSTA (0x04) /* Repeat Start */
51 * Define bit flags in Status Register
54 #define MCFMBUS_MBSR_MCF (0x80) /* Data Transfer Complete */
55 #define MCFMBUS_MBSR_MAAS (0x40) /* Addressed as a Slave */
56 #define MCFMBUS_MBSR_MBB (0x20) /* Bus Busy */
57 #define MCFMBUS_MBSR_MAL (0x10) /* Arbitration Lost */
58 #define MCFMBUS_MBSR_SRW (0x04) /* Slave Transmit */
59 #define MCFMBUS_MBSR_MIF (0x02) /* M-Bus Interrupt */
60 #define MCFMBUS_MBSR_RXAK (0x01) /* No Acknowledge Received */
63 * Define bit flags in DATA I/O Register
66 #define MCFMBUS_MBDR_READ (0x01) /* 1=read 0=write MBUS */
68 #define MBUSIOCSCLOCK 1
69 #define MBUSIOCGCLOCK 2
70 #define MBUSIOCSADDR 3
71 #define MBUSIOCGADDR 4
72 #define MBUSIOCSSLADDR 5
73 #define MBUSIOCGSLADDR 6
74 #define MBUSIOCSSUBADDR 7
75 #define MBUSIOCGSUBADDR 8
77 #endif