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