davinci_spi.h
1.95 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
/*
* Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
*
* Register definitions for the DaVinci SPI Controller
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _DAVINCI_SPI_H_
#define _DAVINCI_SPI_H_
struct davinci_spi_regs {
dv_reg gcr0; /* 0x00 */
dv_reg gcr1; /* 0x04 */
dv_reg int0; /* 0x08 */
dv_reg lvl; /* 0x0c */
dv_reg flg; /* 0x10 */
dv_reg pc0; /* 0x14 */
dv_reg pc1; /* 0x18 */
dv_reg pc2; /* 0x1c */
dv_reg pc3; /* 0x20 */
dv_reg pc4; /* 0x24 */
dv_reg pc5; /* 0x28 */
dv_reg rsvd[3];
dv_reg dat0; /* 0x38 */
dv_reg dat1; /* 0x3c */
dv_reg buf; /* 0x40 */
dv_reg emu; /* 0x44 */
dv_reg delay; /* 0x48 */
dv_reg def; /* 0x4c */
dv_reg fmt0; /* 0x50 */
dv_reg fmt1; /* 0x54 */
dv_reg fmt2; /* 0x58 */
dv_reg fmt3; /* 0x5c */
dv_reg intvec0; /* 0x60 */
dv_reg intvec1; /* 0x64 */
};
#define BIT(x) (1 << (x))
/* SPIGCR0 */
#define SPIGCR0_SPIENA_MASK 0x1
#define SPIGCR0_SPIRST_MASK 0x0
/* SPIGCR0 */
#define SPIGCR1_CLKMOD_MASK BIT(1)
#define SPIGCR1_MASTER_MASK BIT(0)
#define SPIGCR1_SPIENA_MASK BIT(24)
/* SPIPC0 */
#define SPIPC0_DIFUN_MASK BIT(11) /* SIMO */
#define SPIPC0_DOFUN_MASK BIT(10) /* SOMI */
#define SPIPC0_CLKFUN_MASK BIT(9) /* CLK */
#define SPIPC0_EN0FUN_MASK BIT(0)
/* SPIFMT0 */
#define SPIFMT_SHIFTDIR_SHIFT 20
#define SPIFMT_POLARITY_SHIFT 17
#define SPIFMT_PHASE_SHIFT 16
#define SPIFMT_PRESCALE_SHIFT 8
/* SPIDAT1 */
#define SPIDAT1_CSHOLD_SHIFT 28
#define SPIDAT1_CSNR_SHIFT 16
/* SPIDELAY */
#define SPI_C2TDELAY_SHIFT 24
#define SPI_T2CDELAY_SHIFT 16
/* SPIBUF */
#define SPIBUF_RXEMPTY_MASK BIT(31)
#define SPIBUF_TXFULL_MASK BIT(29)
/* SPIDEF */
#define SPIDEF_CSDEF0_MASK BIT(0)
struct davinci_spi_slave {
struct spi_slave slave;
struct davinci_spi_regs *regs;
unsigned int freq;
};
static inline struct davinci_spi_slave *to_davinci_spi(struct spi_slave *slave)
{
return container_of(slave, struct davinci_spi_slave, slave);
}
#endif /* _DAVINCI_SPI_H_ */