xref: /openbmc/u-boot/include/sja1000.h (revision e8f80a5a)
1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * Copyright 2009, Matthias Fuchs <matthias.fuchs@esd.eu>
4  *
5  * SJA1000 register layout for basic CAN mode
6  */
7 
8 #ifndef _SJA1000_H_
9 #define _SJA1000_H_
10 
11 /*
12  * SJA1000 register layout in basic can mode
13  */
14 struct sja1000_basic_s {
15 	u8 cr;
16 	u8 cmr;
17 	u8 sr;
18 	u8 ir;
19 	u8 ac;
20 	u8 am;
21 	u8 btr0;
22 	u8 btr1;
23 	u8 oc;
24 	u8 txb[10];
25 	u8 rxb[10];
26 	u8 unused;
27 	u8 cdr;
28 };
29 
30 /* control register */
31 #define CR_RR		0x01
32 
33 /* output control register */
34 #define OC_MODE0	0x01
35 #define OC_MODE1	0x02
36 #define OC_POL0		0x04
37 #define OC_TN0		0x08
38 #define OC_TP0		0x10
39 #define OC_POL1		0x20
40 #define OC_TN1		0x40
41 #define OC_TP1		0x80
42 
43 #endif
44