summaryrefslogtreecommitdiff
path: root/drivers/net/fjes/fjes_regs.h
blob: 77a7a5bef74af3ffe2348de8bd32adbe1ad1d993 (plain)
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
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  FUJITSU Extended Socket Network Device driver
 *  Copyright (c) 2015 FUJITSU LIMITED
 */

#ifndef FJES_REGS_H_
#define FJES_REGS_H_

#include <linux/bitops.h>

#define XSCT_DEVICE_REGISTER_SIZE 0x1000

/* register offset */
/* Information registers */
#define XSCT_OWNER_EPID     0x0000  /* Owner EPID */
#define XSCT_MAX_EP         0x0004  /* Maximum EP */

/* Device Control registers */
#define XSCT_DCTL           0x0010  /* Device Control */

/* Command Control registers */
#define XSCT_CR             0x0020  /* Command request */
#define XSCT_CS             0x0024  /* Command status */
#define XSCT_SHSTSAL        0x0028  /* Share status address Low */
#define XSCT_SHSTSAH        0x002C  /* Share status address High */

#define XSCT_REQBL          0x0034  /* Request Buffer length */
#define XSCT_REQBAL         0x0038  /* Request Buffer Address Low */
#define XSCT_REQBAH         0x003C  /* Request Buffer Address High */

#define XSCT_RESPBL         0x0044  /* Response Buffer Length */
#define XSCT_RESPBAL        0x0048  /* Response Buffer Address Low */
#define XSCT_RESPBAH        0x004C  /* Response Buffer Address High */

/* Interrupt Control registers */
#define XSCT_IS             0x0080  /* Interrupt status */
#define XSCT_IMS            0x0084  /* Interrupt mask set */
#define XSCT_IMC            0x0088  /* Interrupt mask clear */
#define XSCT_IG             0x008C  /* Interrupt generator */
#define XSCT_ICTL           0x0090  /* Interrupt control */

/* register structure */
/* Information registers */
union REG_OWNER_EPID {
	struct {
		__le32 epid:16;
		__le32:16;
	} bits;
	__le32 reg;
};

union REG_MAX_EP {
	struct {
		__le32 maxep:16;
		__le32:16;
	} bits;
	__le32 reg;
};

/* Device Control registers */
union REG_DCTL {
	struct {
		__le32 reset:1;
		__le32 rsv0:15;
		__le32 rsv1:16;
	} bits;
	__le32 reg;
};

/* Command Control registers */
union REG_CR {
	struct {
		__le32 req_code:16;
		__le32 err_info:14;
		__le32 error:1;
		__le32 req_start:1;
	} bits;
	__le32 reg;
};

union REG_CS {
	struct {
		__le32 req_code:16;
		__le32 rsv0:14;
		__le32 busy:1;
		__le32 complete:1;
	} bits;
	__le32 reg;
};

/* Interrupt Control registers */
union REG_ICTL {
	struct {
		__le32 automak:1;
		__le32 rsv0:31;
	} bits;
	__le32 reg;
};

enum REG_ICTL_MASK {
	REG_ICTL_MASK_INFO_UPDATE     = 1 << 20,
	REG_ICTL_MASK_DEV_STOP_REQ    = 1 << 19,
	REG_ICTL_MASK_TXRX_STOP_REQ   = 1 << 18,
	REG_ICTL_MASK_TXRX_STOP_DONE  = 1 << 17,
	REG_ICTL_MASK_RX_DATA         = 1 << 16,
	REG_ICTL_MASK_ALL             = GENMASK(20, 16),
};

enum REG_IS_MASK {
	REG_IS_MASK_IS_ASSERT	= 1 << 31,
	REG_IS_MASK_EPID	= GENMASK(15, 0),
};

struct fjes_hw;

u32 fjes_hw_rd32(struct fjes_hw *hw, u32 reg);

#define wr32(reg, val) \
do { \
	u8 *base = hw->base; \
	writel((val), &base[(reg)]); \
} while (0)

#define rd32(reg) (fjes_hw_rd32(hw, reg))

#endif /* FJES_REGS_H_ */