1 /*
2  * bfin_twi.h - interface to Blackfin TWIs
3  *
4  * Copyright 2005-2010 Analog Devices Inc.
5  *
6  * Licensed under the GPL-2 or later.
7  */
8 
9 #ifndef __ASM_BFIN_TWI_H__
10 #define __ASM_BFIN_TWI_H__
11 
12 #include <linux/types.h>
13 
14 /*
15  * All Blackfin system MMRs are padded to 32bits even if the register
16  * itself is only 16bits.  So use a helper macro to streamline this.
17  */
18 #define __BFP(m) u16 m; u16 __pad_##m
19 
20 /*
21  * bfin twi registers layout
22  */
23 struct bfin_twi_regs {
24 	__BFP(clkdiv);
25 	__BFP(control);
26 	__BFP(slave_ctl);
27 	__BFP(slave_stat);
28 	__BFP(slave_addr);
29 	__BFP(master_ctl);
30 	__BFP(master_stat);
31 	__BFP(master_addr);
32 	__BFP(int_stat);
33 	__BFP(int_mask);
34 	__BFP(fifo_ctl);
35 	__BFP(fifo_stat);
36 	u32 __pad[20];
37 	__BFP(xmt_data8);
38 	__BFP(xmt_data16);
39 	__BFP(rcv_data8);
40 	__BFP(rcv_data16);
41 };
42 
43 #undef __BFP
44 
45 #endif
46