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1394f032 | 1 | /************************************************************ |
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2 | |
3 | * Copyright (C) 2006-2008, Analog Devices. All Rights Reserved | |
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4 | * |
5 | * FILE bfin5xx_spi.h | |
6 | * PROGRAMMER(S): Luke Yang (Analog Devices Inc.) | |
7 | * | |
8 | * | |
9 | * DATE OF CREATION: March. 10th 2006 | |
10 | * | |
11 | * SYNOPSIS: | |
12 | * | |
13 | * DESCRIPTION: header file for SPI controller driver for Blackfin5xx. | |
14 | ************************************************************** | |
15 | ||
16 | * MODIFICATION HISTORY: | |
17 | * March 10, 2006 bfin5xx_spi.h Created. (Luke Yang) | |
18 | ||
19 | ************************************************************/ | |
20 | ||
21 | #ifndef _SPI_CHANNEL_H_ | |
22 | #define _SPI_CHANNEL_H_ | |
23 | ||
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24 | #define SPI_READ 0 |
25 | #define SPI_WRITE 1 | |
26 | ||
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 | |
34 | ||
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35 | |
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 | |
50 | ||
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 | |
59 | ||
60 | #define BIT_STU_SENDOVER 0x0001 | |
61 | #define BIT_STU_RECVFULL 0x0020 | |
62 | ||
63 | #define CFG_SPI_ENABLE 1 | |
64 | #define CFG_SPI_DISABLE 0 | |
65 | ||
66 | #define CFG_SPI_OUTENABLE 1 | |
67 | #define CFG_SPI_OUTDISABLE 0 | |
68 | ||
69 | #define CFG_SPI_ACTLOW 1 | |
70 | #define CFG_SPI_ACTHIGH 0 | |
71 | ||
72 | #define CFG_SPI_PHASESTART 1 | |
73 | #define CFG_SPI_PHASEMID 0 | |
74 | ||
75 | #define CFG_SPI_MASTER 1 | |
76 | #define CFG_SPI_SLAVE 0 | |
77 | ||
78 | #define CFG_SPI_SENELAST 0 | |
79 | #define CFG_SPI_SENDZERO 1 | |
80 | ||
81 | #define CFG_SPI_RCVFLUSH 1 | |
82 | #define CFG_SPI_RCVDISCARD 0 | |
83 | ||
84 | #define CFG_SPI_LSBFIRST 1 | |
85 | #define CFG_SPI_MSBFIRST 0 | |
86 | ||
87 | #define CFG_SPI_WORDSIZE16 1 | |
88 | #define CFG_SPI_WORDSIZE8 0 | |
89 | ||
90 | #define CFG_SPI_MISOENABLE 1 | |
91 | #define CFG_SPI_MISODISABLE 0 | |
92 | ||
93 | #define CFG_SPI_READ 0x00 | |
94 | #define CFG_SPI_WRITE 0x01 | |
95 | #define CFG_SPI_DMAREAD 0x02 | |
96 | #define CFG_SPI_DMAWRITE 0x03 | |
97 | ||
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 | |
106 | ||
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 | |
114 | ||
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115 | #define CMD_SPI_SET_BAUDRATE 2 |
116 | #define CMD_SPI_GET_SYSTEMCLOCK 25 | |
117 | #define CMD_SPI_SET_WRITECONTINUOUS 26 | |
118 | ||
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119 | /* device.platform_data for SSP controller devices */ |
120 | struct bfin5xx_spi_master { | |
121 | u16 num_chipselect; | |
122 | u8 enable_dma; | |
003d9226 | 123 | u16 pin_req[4]; |
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124 | }; |
125 | ||
126 | /* spi_board_info.controller_data for SPI slave devices, | |
127 | * copied to spi_device.platform_data ... mostly for dma tuning | |
128 | */ | |
129 | struct bfin5xx_spi_chip { | |
130 | u16 ctl_reg; | |
131 | u8 enable_dma; | |
132 | u8 bits_per_word; | |
133 | u8 cs_change_per_word; | |
62310e51 | 134 | u16 cs_chg_udelay; /* Some devices require 16-bit delays */ |
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135 | }; |
136 | ||
137 | #endif /* _SPI_CHANNEL_H_ */ |