| /* |
| * bfin_twi.h - interface to Blackfin TWIs |
| * |
| * Copyright 2005-2010 Analog Devices Inc. |
| * |
| * Licensed under the GPL-2 or later. |
| */ |
| |
| #ifndef __ASM_BFIN_TWI_H__ |
| #define __ASM_BFIN_TWI_H__ |
| |
| #include <linux/types.h> |
| |
| /* |
| * All Blackfin system MMRs are padded to 32bits even if the register |
| * itself is only 16bits. So use a helper macro to streamline this. |
| */ |
| #define __BFP(m) u16 m; u16 __pad_##m |
| |
| /* |
| * bfin twi registers layout |
| */ |
| struct bfin_twi_regs { |
| __BFP(clkdiv); |
| __BFP(control); |
| __BFP(slave_ctl); |
| __BFP(slave_stat); |
| __BFP(slave_addr); |
| __BFP(master_ctl); |
| __BFP(master_stat); |
| __BFP(master_addr); |
| __BFP(int_stat); |
| __BFP(int_mask); |
| __BFP(fifo_ctl); |
| __BFP(fifo_stat); |
| u32 __pad[20]; |
| __BFP(xmt_data8); |
| __BFP(xmt_data16); |
| __BFP(rcv_data8); |
| __BFP(rcv_data16); |
| }; |
| |
| #undef __BFP |
| |
| #endif |
