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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/****************************************************************************/
2
3/*
4 * mcfmbus.h -- Coldfire MBUS support defines.
5 *
6 * (C) Copyright 1999, Martin Floeer (mfloeer@axcent.de)
7 */
8
9/****************************************************************************/
10
11
12#ifndef mcfmbus_h
13#define mcfmbus_h
Linus Torvalds1da177e2005-04-16 15:20:36 -070014
15
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
22
23
24/*
25* Define the 5307 MBUS register set addresses
26*/
27
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
33
34
35#define MCFMBUS_MADR_ADDR(a) (((a)&0x7F)<<0x01) /*Slave Address*/
36
37#define MCFMBUS_MFDR_MBC(a) ((a)&0x3F) /*M-Bus Clock*/
38
39/*
40* Define bit flags in Controll Register
41*/
42
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 */
49
50/*
51* Define bit flags in Status Register
52*/
53
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 */
61
62/*
63* Define bit flags in DATA I/O Register
64*/
65
66#define MCFMBUS_MBDR_READ (0x01) /* 1=read 0=write MBUS */
67
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
76
77#endif