blackfin: twi: move twi bit mask macro to twi head file

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/arch/blackfin/include/asm/bfin_twi.h b/arch/blackfin/include/asm/bfin_twi.h
index e767d649dfc4..74d10237f706 100644
--- a/arch/blackfin/include/asm/bfin_twi.h
+++ b/arch/blackfin/include/asm/bfin_twi.h
@@ -42,4 +42,74 @@ struct bfin_twi_regs {
 
 #undef __BFP
 
+/*  ********************  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                    */
+#define CLKHI(y)	(((y)&0xFF)<<0x8)	/* Periods Before New Clock Low                 */
+
+/* TWI_PRESCALE Masks															*/
+#define	PRESCALE	0x007F	/* SCLKs Per Internal Time Reference (10MHz)    */
+#define	TWI_ENA		0x0080	/* TWI Enable                                                                   */
+#define	SCCB		0x0200	/* SCCB Compatibility Enable                                    */
+
+/* TWI_SLAVE_CTL Masks															*/
+#define	SEN			0x0001	/* Slave Enable                                                                 */
+#define	SADD_LEN	0x0002	/* Slave Address Length                                                 */
+#define	STDVAL		0x0004	/* Slave Transmit Data Valid                                    */
+#define	NAK			0x0008	/* NAK/ACK* Generated At Conclusion Of Transfer */
+#define	GEN			0x0010	/* General Call Address Matching Enabled                */
+
+/* TWI_SLAVE_STAT Masks															*/
+#define	SDIR		0x0001	/* Slave Transfer Direction (Transmit/Receive*) */
+#define GCALL		0x0002	/* General Call Indicator                                               */
+
+/* TWI_MASTER_CTL Masks													*/
+#define	MEN			0x0001	/* Master Mode Enable                                           */
+#define	MADD_LEN	0x0002	/* Master Address Length                                        */
+#define	MDIR		0x0004	/* Master Transmit Direction (RX/TX*)           */
+#define	FAST		0x0008	/* Use Fast Mode Timing Specs                           */
+#define	STOP		0x0010	/* Issue Stop Condition                                         */
+#define	RSTART		0x0020	/* Repeat Start or Stop* At End Of Transfer     */
+#define	DCNT		0x3FC0	/* Data Bytes To Transfer                                       */
+#define	SDAOVR		0x4000	/* Serial Data Override                                         */
+#define	SCLOVR		0x8000	/* Serial Clock Override                                        */
+
+/* TWI_MASTER_STAT Masks														*/
+#define	MPROG		0x0001	/* Master Transfer In Progress                                  */
+#define	LOSTARB		0x0002	/* Lost Arbitration Indicator (Xfer Aborted)    */
+#define	ANAK		0x0004	/* Address Not Acknowledged                                             */
+#define	DNAK		0x0008	/* Data Not Acknowledged                                                */
+#define	BUFRDERR	0x0010	/* Buffer Read Error                                                    */
+#define	BUFWRERR	0x0020	/* Buffer Write Error                                                   */
+#define	SDASEN		0x0040	/* Serial Data Sense                                                    */
+#define	SCLSEN		0x0080	/* Serial Clock Sense                                                   */
+#define	BUSBUSY		0x0100	/* Bus Busy Indicator                                                   */
+
+/* TWI_INT_SRC and TWI_INT_ENABLE Masks						*/
+#define	SINIT		0x0001	/* Slave Transfer Initiated     */
+#define	SCOMP		0x0002	/* Slave Transfer Complete      */
+#define	SERR		0x0004	/* Slave Transfer Error         */
+#define	SOVF		0x0008	/* Slave Overflow                       */
+#define	MCOMP		0x0010	/* Master Transfer Complete     */
+#define	MERR		0x0020	/* Master Transfer Error        */
+#define	XMTSERV		0x0040	/* Transmit FIFO Service        */
+#define	RCVSERV		0x0080	/* Receive FIFO Service         */
+
+/* TWI_FIFO_CTRL Masks												*/
+#define	XMTFLUSH	0x0001	/* Transmit Buffer Flush                        */
+#define	RCVFLUSH	0x0002	/* Receive Buffer Flush                         */
+#define	XMTINTLEN	0x0004	/* Transmit Buffer Interrupt Length     */
+#define	RCVINTLEN	0x0008	/* Receive Buffer Interrupt Length      */
+
+/* TWI_FIFO_STAT Masks															*/
+#define	XMTSTAT		0x0003	/* Transmit FIFO Status                                                 */
+#define	XMT_EMPTY	0x0000	/*              Transmit FIFO Empty                                             */
+#define	XMT_HALF	0x0001	/*              Transmit FIFO Has 1 Byte To Write               */
+#define	XMT_FULL	0x0003	/*              Transmit FIFO Full (2 Bytes To Write)   */
+
+#define	RCVSTAT		0x000C	/* Receive FIFO Status                                                  */
+#define	RCV_EMPTY	0x0000	/*              Receive FIFO Empty                                              */
+#define	RCV_HALF	0x0004	/*              Receive FIFO Has 1 Byte To Read                 */
+#define	RCV_FULL	0x000C	/*              Receive FIFO Full (2 Bytes To Read)             */
+
 #endif