1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (c) 2022 Davicom Semiconductor,Inc.
4  * Davicom DM9051 SPI Fast Ethernet Linux driver
5  */
6 
7 #ifndef _DM9051_H_
8 #define _DM9051_H_
9 
10 #include <linux/bits.h>
11 #include <linux/netdevice.h>
12 #include <linux/types.h>
13 
14 #define DM9051_ID		0x9051
15 
16 #define DM9051_NCR		0x00
17 #define DM9051_NSR		0x01
18 #define DM9051_TCR		0x02
19 #define DM9051_RCR		0x05
20 #define DM9051_BPTR		0x08
21 #define DM9051_FCR		0x0A
22 #define DM9051_EPCR		0x0B
23 #define DM9051_EPAR		0x0C
24 #define DM9051_EPDRL		0x0D
25 #define DM9051_EPDRH		0x0E
26 #define DM9051_PAR		0x10
27 #define DM9051_MAR		0x16
28 #define DM9051_GPCR		0x1E
29 #define DM9051_GPR		0x1F
30 
31 #define DM9051_VIDL		0x28
32 #define DM9051_VIDH		0x29
33 #define DM9051_PIDL		0x2A
34 #define DM9051_PIDH		0x2B
35 #define DM9051_SMCR		0x2F
36 #define	DM9051_ATCR		0x30
37 #define	DM9051_SPIBCR		0x38
38 #define DM9051_INTCR		0x39
39 #define DM9051_PPCR		0x3D
40 
41 #define DM9051_MPCR		0x55
42 #define DM9051_LMCR		0x57
43 #define DM9051_MBNDRY		0x5E
44 
45 #define DM9051_MRRL		0x74
46 #define DM9051_MRRH		0x75
47 #define DM9051_MWRL		0x7A
48 #define DM9051_MWRH		0x7B
49 #define DM9051_TXPLL		0x7C
50 #define DM9051_TXPLH		0x7D
51 #define DM9051_ISR		0x7E
52 #define DM9051_IMR		0x7F
53 
54 #define DM_SPI_MRCMDX		0x70
55 #define DM_SPI_MRCMD		0x72
56 #define DM_SPI_MWCMD		0x78
57 
58 #define DM_SPI_WR		0x80
59 
60 /* dm9051 Ethernet controller registers bits
61  */
62 /* 0x00 */
63 #define NCR_WAKEEN		BIT(6)
64 #define NCR_FDX			BIT(3)
65 #define NCR_RST			BIT(0)
66 /* 0x01 */
67 #define NSR_SPEED		BIT(7)
68 #define NSR_LINKST		BIT(6)
69 #define NSR_WAKEST		BIT(5)
70 #define NSR_TX2END		BIT(3)
71 #define NSR_TX1END		BIT(2)
72 /* 0x02 */
73 #define TCR_DIS_JABBER_TIMER	BIT(6) /* for Jabber Packet support */
74 #define TCR_TXREQ		BIT(0)
75 /* 0x05 */
76 #define RCR_DIS_WATCHDOG_TIMER	BIT(6)  /* for Jabber Packet support */
77 #define RCR_DIS_LONG		BIT(5)
78 #define RCR_DIS_CRC		BIT(4)
79 #define RCR_ALL			BIT(3)
80 #define RCR_PRMSC		BIT(1)
81 #define RCR_RXEN		BIT(0)
82 #define RCR_RX_DISABLE		(RCR_DIS_LONG | RCR_DIS_CRC)
83 /* 0x06 */
84 #define RSR_RF			BIT(7)
85 #define RSR_MF			BIT(6)
86 #define RSR_LCS			BIT(5)
87 #define RSR_RWTO		BIT(4)
88 #define RSR_PLE			BIT(3)
89 #define RSR_AE			BIT(2)
90 #define RSR_CE			BIT(1)
91 #define RSR_FOE			BIT(0)
92 #define	RSR_ERR_BITS		(RSR_RF | RSR_LCS | RSR_RWTO | RSR_PLE | \
93 				 RSR_AE | RSR_CE | RSR_FOE)
94 /* 0x0A */
95 #define FCR_TXPEN		BIT(5)
96 #define FCR_BKPM		BIT(3)
97 #define FCR_FLCE		BIT(0)
98 #define FCR_RXTX_BITS		(FCR_TXPEN | FCR_BKPM | FCR_FLCE)
99 /* 0x0B */
100 #define EPCR_WEP		BIT(4)
101 #define EPCR_EPOS		BIT(3)
102 #define EPCR_ERPRR		BIT(2)
103 #define EPCR_ERPRW		BIT(1)
104 #define EPCR_ERRE		BIT(0)
105 /* 0x1E */
106 #define GPCR_GEP_CNTL		BIT(0)
107 /* 0x1F */
108 #define GPR_PHY_OFF		BIT(0)
109 /* 0x30 */
110 #define	ATCR_AUTO_TX		BIT(7)
111 /* 0x39 */
112 #define INTCR_POL_LOW		(1 << 0)
113 #define INTCR_POL_HIGH		(0 << 0)
114 /* 0x3D */
115 /* Pause Packet Control Register - default = 1 */
116 #define PPCR_PAUSE_COUNT	0x08
117 /* 0x55 */
118 #define MPCR_RSTTX		BIT(1)
119 #define MPCR_RSTRX		BIT(0)
120 /* 0x57 */
121 /* LEDMode Control Register - LEDMode1 */
122 /* Value 0x81 : bit[7] = 1, bit[2] = 0, bit[1:0] = 01b */
123 #define LMCR_NEWMOD		BIT(7)
124 #define LMCR_TYPED1		BIT(1)
125 #define LMCR_TYPED0		BIT(0)
126 #define LMCR_MODE1		(LMCR_NEWMOD | LMCR_TYPED0)
127 /* 0x5E */
128 #define MBNDRY_BYTE		BIT(7)
129 /* 0xFE */
130 #define ISR_MBS			BIT(7)
131 #define ISR_LNKCHG		BIT(5)
132 #define ISR_ROOS		BIT(3)
133 #define ISR_ROS			BIT(2)
134 #define ISR_PTS			BIT(1)
135 #define ISR_PRS			BIT(0)
136 #define ISR_CLR_INT		(ISR_LNKCHG | ISR_ROOS | ISR_ROS | \
137 				 ISR_PTS | ISR_PRS)
138 #define ISR_STOP_MRCMD		(ISR_MBS)
139 /* 0xFF */
140 #define IMR_PAR			BIT(7)
141 #define IMR_LNKCHGI		BIT(5)
142 #define IMR_PTM			BIT(1)
143 #define IMR_PRM			BIT(0)
144 
145 /* Const
146  */
147 #define DM9051_PHY_ADDR			1	/* PHY id */
148 #define DM9051_PHY			0x40	/* PHY address 0x01 */
149 #define DM9051_PKT_RDY			0x01	/* Packet ready to receive */
150 #define DM9051_PKT_MAX			1536	/* Received packet max size */
151 #define DM9051_TX_QUE_HI_WATER		50
152 #define DM9051_TX_QUE_LO_WATER		25
153 #define DM_EEPROM_MAGIC			0x9051
154 
155 #define	DM_RXHDR_SIZE			sizeof(struct dm9051_rxhdr)
156 
to_dm9051_board(struct net_device * ndev)157 static inline struct board_info *to_dm9051_board(struct net_device *ndev)
158 {
159 	return netdev_priv(ndev);
160 }
161 
162 #endif /* _DM9051_H_ */
163