fsl_dspi.h
4.76 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
/*
* Freescale DSPI Module Defines
*
* Copyright (C) 2004-2007, 2015 Freescale Semiconductor, Inc.
* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
* Chao Fu (B44548@freesacle.com)
* Haikun Wang (B53464@freescale.com)
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _FSL_DSPI_H_
#define _FSL_DSPI_H_
/* DMA Serial Peripheral Interface (DSPI) */
struct dspi {
u32 mcr; /* 0x00 */
u32 resv0; /* 0x04 */
u32 tcr; /* 0x08 */
u32 ctar[8]; /* 0x0C - 0x28 */
u32 sr; /* 0x2C */
u32 irsr; /* 0x30 */
u32 tfr; /* 0x34 - PUSHR */
u32 rfr; /* 0x38 - POPR */
#ifdef CONFIG_MCF547x_8x
u32 tfdr[4]; /* 0x3C */
u8 resv2[0x30]; /* 0x40 */
u32 rfdr[4]; /* 0x7C */
#else
u32 tfdr[16]; /* 0x3C */
u32 rfdr[16]; /* 0x7C */
#endif
};
/* Module configuration */
#define DSPI_MCR_MSTR 0x80000000
#define DSPI_MCR_CSCK 0x40000000
#define DSPI_MCR_DCONF(x) (((x) & 0x03) << 28)
#define DSPI_MCR_FRZ 0x08000000
#define DSPI_MCR_MTFE 0x04000000
#define DSPI_MCR_PCSSE 0x02000000
#define DSPI_MCR_ROOE 0x01000000
#define DSPI_MCR_PCSIS(x) (1 << (16 + (x)))
#define DSPI_MCR_PCSIS_MASK (0xff << 16)
#define DSPI_MCR_CSIS7 0x00800000
#define DSPI_MCR_CSIS6 0x00400000
#define DSPI_MCR_CSIS5 0x00200000
#define DSPI_MCR_CSIS4 0x00100000
#define DSPI_MCR_CSIS3 0x00080000
#define DSPI_MCR_CSIS2 0x00040000
#define DSPI_MCR_CSIS1 0x00020000
#define DSPI_MCR_CSIS0 0x00010000
#define DSPI_MCR_DOZE 0x00008000
#define DSPI_MCR_MDIS 0x00004000
#define DSPI_MCR_DTXF 0x00002000
#define DSPI_MCR_DRXF 0x00001000
#define DSPI_MCR_CTXF 0x00000800
#define DSPI_MCR_CRXF 0x00000400
#define DSPI_MCR_SMPL_PT(x) (((x) & 0x03) << 8)
#define DSPI_MCR_FCPCS 0x00000001
#define DSPI_MCR_PES 0x00000001
#define DSPI_MCR_HALT 0x00000001
/* Transfer count */
#define DSPI_TCR_SPI_TCNT(x) (((x) & 0x0000FFFF) << 16)
/* Clock and transfer attributes */
#define DSPI_CTAR(x) (0x0c + (x * 4))
#define DSPI_CTAR_DBR 0x80000000
#define DSPI_CTAR_TRSZ(x) (((x) & 0x0F) << 27)
#define DSPI_CTAR_CPOL 0x04000000
#define DSPI_CTAR_CPHA 0x02000000
#define DSPI_CTAR_LSBFE 0x01000000
#define DSPI_CTAR_PCSSCK(x) (((x) & 0x03) << 22)
#define DSPI_CTAR_PCSSCK_7CLK 0x00A00000
#define DSPI_CTAR_PCSSCK_5CLK 0x00800000
#define DSPI_CTAR_PCSSCK_3CLK 0x00400000
#define DSPI_CTAR_PCSSCK_1CLK 0x00000000
#define DSPI_CTAR_PASC(x) (((x) & 0x03) << 20)
#define DSPI_CTAR_PASC_7CLK 0x00300000
#define DSPI_CTAR_PASC_5CLK 0x00200000
#define DSPI_CTAR_PASC_3CLK 0x00100000
#define DSPI_CTAR_PASC_1CLK 0x00000000
#define DSPI_CTAR_PDT(x) (((x) & 0x03) << 18)
#define DSPI_CTAR_PDT_7CLK 0x000A0000
#define DSPI_CTAR_PDT_5CLK 0x00080000
#define DSPI_CTAR_PDT_3CLK 0x00040000
#define DSPI_CTAR_PDT_1CLK 0x00000000
#define DSPI_CTAR_PBR(x) (((x) & 0x03) << 16)
#define DSPI_CTAR_PBR_7CLK 0x00030000
#define DSPI_CTAR_PBR_5CLK 0x00020000
#define DSPI_CTAR_PBR_3CLK 0x00010000
#define DSPI_CTAR_PBR_1CLK 0x00000000
#define DSPI_CTAR_CSSCK(x) (((x) & 0x0F) << 12)
#define DSPI_CTAR_ASC(x) (((x) & 0x0F) << 8)
#define DSPI_CTAR_DT(x) (((x) & 0x0F) << 4)
#define DSPI_CTAR_BR(x) ((x) & 0x0F)
/* Status */
#define DSPI_SR_TCF 0x80000000
#define DSPI_SR_TXRXS 0x40000000
#define DSPI_SR_EOQF 0x10000000
#define DSPI_SR_TFUF 0x08000000
#define DSPI_SR_TFFF 0x02000000
#define DSPI_SR_RFOF 0x00080000
#define DSPI_SR_RFDF 0x00020000
#define DSPI_SR_TXCTR(x) (((x) & 0x0000F000) >> 12)
#define DSPI_SR_TXPTR(x) (((x) & 0x00000F00) >> 8)
#define DSPI_SR_RXCTR(x) (((x) & 0x000000F0) >> 4)
#define DSPI_SR_RXPTR(x) ((x) & 0x0000000F)
/* DMA/interrupt request selct and enable */
#define DSPI_IRSR_TCFE 0x80000000
#define DSPI_IRSR_EOQFE 0x10000000
#define DSPI_IRSR_TFUFE 0x08000000
#define DSPI_IRSR_TFFFE 0x02000000
#define DSPI_IRSR_TFFFS 0x01000000
#define DSPI_IRSR_RFOFE 0x00080000
#define DSPI_IRSR_RFDFE 0x00020000
#define DSPI_IRSR_RFDFS 0x00010000
/* Transfer control - 32-bit access */
#define DSPI_TFR_PCS(x) (((1 << x) & 0x0000003f) << 16)
#define DSPI_TFR_CONT 0x80000000
#define DSPI_TFR_CTAS(x) (((x) & 0x07) << 28)
#define DSPI_TFR_EOQ 0x08000000
#define DSPI_TFR_CTCNT 0x04000000
#define DSPI_TFR_CS7 0x00800000
#define DSPI_TFR_CS6 0x00400000
#define DSPI_TFR_CS5 0x00200000
#define DSPI_TFR_CS4 0x00100000
#define DSPI_TFR_CS3 0x00080000
#define DSPI_TFR_CS2 0x00040000
#define DSPI_TFR_CS1 0x00020000
#define DSPI_TFR_CS0 0x00010000
/* Transfer Fifo */
#define DSPI_TFR_TXDATA(x) ((x) & 0x0000FFFF)
/* Bit definitions and macros for DRFR */
#define DSPI_RFR_RXDATA(x) ((x) & 0x0000FFFF)
/* Bit definitions and macros for DTFDR group */
#define DSPI_TFDR_TXDATA(x) ((x) & 0x0000FFFF)
#define DSPI_TFDR_TXCMD(x) (((x) & 0x0000FFFF) << 16)
/* Bit definitions and macros for DRFDR group */
#define DSPI_RFDR_RXDATA(x) ((x) & 0x0000FFFF)
#endif /* _FSL_DSPI_H_ */