1 files changed, 44 insertions, 0 deletions

diff --git a/arch/blackfin/include/asm/bfin_twi.h b/arch/blackfin/include/asm/bfin_twi.h
index 74d10237f706..72092108df1c 100644
--- a/arch/blackfin/include/asm/bfin_twi.h
+++ b/arch/blackfin/include/asm/bfin_twi.h
@@ -42,6 +42,50 @@ struct bfin_twi_regs {
 
 #undef __BFP
 
+struct bfin_twi_iface {
+        int                     irq;
+        spinlock_t              lock;
+        char                    read_write;
+        u8                      command;
+        u8                      *transPtr;
+        int                     readNum;
+        int                     writeNum;
+        int                     cur_mode;
+        int                     manual_stop;
+        int                     result;
+        struct i2c_adapter      adap;
+        struct completion       complete;
+        struct i2c_msg          *pmsg;
+        int                     msg_num;
+        int                     cur_msg;
+        u16                     saved_clkdiv;
+        u16                     saved_control;
+        struct bfin_twi_regs    *regs_base;
+};
+
+#define DEFINE_TWI_REG(reg_name, reg) \
+static inline u16 read_##reg_name(struct bfin_twi_iface *iface) \
+        { return iface->regs_base->reg; } \
+static inline void write_##reg_name(struct bfin_twi_iface *iface, u16 v) \
+        { iface->regs_base->reg = v; }
+
+DEFINE_TWI_REG(CLKDIV, clkdiv)
+DEFINE_TWI_REG(CONTROL, control)
+DEFINE_TWI_REG(SLAVE_CTL, slave_ctl)
+DEFINE_TWI_REG(SLAVE_STAT, slave_stat)
+DEFINE_TWI_REG(SLAVE_ADDR, slave_addr)
+DEFINE_TWI_REG(MASTER_CTL, master_ctl)
+DEFINE_TWI_REG(MASTER_STAT, master_stat)
+DEFINE_TWI_REG(MASTER_ADDR, master_addr)
+DEFINE_TWI_REG(INT_STAT, int_stat)
+DEFINE_TWI_REG(INT_MASK, int_mask)
+DEFINE_TWI_REG(FIFO_CTL, fifo_ctl)
+DEFINE_TWI_REG(FIFO_STAT, fifo_stat)
+DEFINE_TWI_REG(XMT_DATA8, xmt_data8)
+DEFINE_TWI_REG(XMT_DATA16, xmt_data16)
+DEFINE_TWI_REG(RCV_DATA8, rcv_data8)
+DEFINE_TWI_REG(RCV_DATA16, rcv_data16)
+
 /*  ********************  TWO-WIRE INTERFACE (TWI) MASKS  ***********************/
 /* TWI_CLKDIV Macros (Use: *pTWI_CLKDIV = CLKLOW(x)|CLKHI(y);  )                                */
 #define CLKLOW(x)       ((x) & 0xFF)    /* Periods Clock Is Held Low                    */