1 /************************************************************
3 * Copyright (C) 2006-2008, Analog Devices. All Rights Reserved
6 * PROGRAMMER(S): Luke Yang (Analog Devices Inc.)
9 * DATE OF CREATION: March. 10th 2006
13 * DESCRIPTION: header file for SPI controller driver for Blackfin5xx.
14 **************************************************************
16 * MODIFICATION HISTORY:
17 * March 10, 2006 bfin5xx_spi.h Created. (Luke Yang)
19 ************************************************************/
21 #ifndef _SPI_CHANNEL_H_
22 #define _SPI_CHANNEL_H_
27 #define SPI_CTRL_OFF 0x0
28 #define SPI_FLAG_OFF 0x4
29 #define SPI_STAT_OFF 0x8
30 #define SPI_TXBUFF_OFF 0xc
31 #define SPI_RXBUFF_OFF 0x10
32 #define SPI_BAUD_OFF 0x14
33 #define SPI_SHAW_OFF 0x18
36 #define BIT_CTL_ENABLE 0x4000
37 #define BIT_CTL_OPENDRAIN 0x2000
38 #define BIT_CTL_MASTER 0x1000
39 #define BIT_CTL_POLAR 0x0800
40 #define BIT_CTL_PHASE 0x0400
41 #define BIT_CTL_BITORDER 0x0200
42 #define BIT_CTL_WORDSIZE 0x0100
43 #define BIT_CTL_MISOENABLE 0x0020
44 #define BIT_CTL_RXMOD 0x0000
45 #define BIT_CTL_TXMOD 0x0001
46 #define BIT_CTL_TIMOD_DMA_TX 0x0003
47 #define BIT_CTL_TIMOD_DMA_RX 0x0002
48 #define BIT_CTL_SENDOPT 0x0004
49 #define BIT_CTL_TIMOD 0x0003
51 #define BIT_STAT_SPIF 0x0001
52 #define BIT_STAT_MODF 0x0002
53 #define BIT_STAT_TXE 0x0004
54 #define BIT_STAT_TXS 0x0008
55 #define BIT_STAT_RBSY 0x0010
56 #define BIT_STAT_RXS 0x0020
57 #define BIT_STAT_TXCOL 0x0040
58 #define BIT_STAT_CLR 0xFFFF
60 #define BIT_STU_SENDOVER 0x0001
61 #define BIT_STU_RECVFULL 0x0020
63 #define CFG_SPI_ENABLE 1
64 #define CFG_SPI_DISABLE 0
66 #define CFG_SPI_OUTENABLE 1
67 #define CFG_SPI_OUTDISABLE 0
69 #define CFG_SPI_ACTLOW 1
70 #define CFG_SPI_ACTHIGH 0
72 #define CFG_SPI_PHASESTART 1
73 #define CFG_SPI_PHASEMID 0
75 #define CFG_SPI_MASTER 1
76 #define CFG_SPI_SLAVE 0
78 #define CFG_SPI_SENELAST 0
79 #define CFG_SPI_SENDZERO 1
81 #define CFG_SPI_RCVFLUSH 1
82 #define CFG_SPI_RCVDISCARD 0
84 #define CFG_SPI_LSBFIRST 1
85 #define CFG_SPI_MSBFIRST 0
87 #define CFG_SPI_WORDSIZE16 1
88 #define CFG_SPI_WORDSIZE8 0
90 #define CFG_SPI_MISOENABLE 1
91 #define CFG_SPI_MISODISABLE 0
93 #define CFG_SPI_READ 0x00
94 #define CFG_SPI_WRITE 0x01
95 #define CFG_SPI_DMAREAD 0x02
96 #define CFG_SPI_DMAWRITE 0x03
98 #define CFG_SPI_CSCLEARALL 0
99 #define CFG_SPI_CHIPSEL1 1
100 #define CFG_SPI_CHIPSEL2 2
101 #define CFG_SPI_CHIPSEL3 3
102 #define CFG_SPI_CHIPSEL4 4
103 #define CFG_SPI_CHIPSEL5 5
104 #define CFG_SPI_CHIPSEL6 6
105 #define CFG_SPI_CHIPSEL7 7
107 #define CFG_SPI_CS1VALUE 1
108 #define CFG_SPI_CS2VALUE 2
109 #define CFG_SPI_CS3VALUE 3
110 #define CFG_SPI_CS4VALUE 4
111 #define CFG_SPI_CS5VALUE 5
112 #define CFG_SPI_CS6VALUE 6
113 #define CFG_SPI_CS7VALUE 7
115 #define CMD_SPI_SET_BAUDRATE 2
116 #define CMD_SPI_GET_SYSTEMCLOCK 25
117 #define CMD_SPI_SET_WRITECONTINUOUS 26
119 /* device.platform_data for SSP controller devices */
120 struct bfin5xx_spi_master {
126 /* spi_board_info.controller_data for SPI slave devices,
127 * copied to spi_device.platform_data ... mostly for dma tuning
129 struct bfin5xx_spi_chip {
133 u8 cs_change_per_word;
134 u16 cs_chg_udelay; /* Some devices require 16-bit delays */
137 #endif /* _SPI_CHANNEL_H_ */