xref: /linux/drivers/net/ethernet/microchip/enc28j60_hw.h (revision 0d456bad36d42d16022be045c8a53ddbb59ee478)
1 /*
2  * enc28j60_hw.h: EDTP FrameThrower style enc28j60 registers
3  *
4  * $Id: enc28j60_hw.h,v 1.9 2007/12/14 11:59:16 claudio Exp $
5  */
6 
7 #ifndef _ENC28J60_HW_H
8 #define _ENC28J60_HW_H
9 
10 /*
11  * ENC28J60 Control Registers
12  * Control register definitions are a combination of address,
13  * bank number, and Ethernet/MAC/PHY indicator bits.
14  * - Register address	(bits 0-4)
15  * - Bank number	(bits 5-6)
16  * - MAC/MII indicator	(bit 7)
17  */
18 #define ADDR_MASK	0x1F
19 #define BANK_MASK	0x60
20 #define SPRD_MASK	0x80
21 /* All-bank registers */
22 #define EIE		0x1B
23 #define EIR		0x1C
24 #define ESTAT		0x1D
25 #define ECON2		0x1E
26 #define ECON1		0x1F
27 /* Bank 0 registers */
28 #define ERDPTL		(0x00|0x00)
29 #define ERDPTH		(0x01|0x00)
30 #define EWRPTL		(0x02|0x00)
31 #define EWRPTH		(0x03|0x00)
32 #define ETXSTL		(0x04|0x00)
33 #define ETXSTH		(0x05|0x00)
34 #define ETXNDL		(0x06|0x00)
35 #define ETXNDH		(0x07|0x00)
36 #define ERXSTL		(0x08|0x00)
37 #define ERXSTH		(0x09|0x00)
38 #define ERXNDL		(0x0A|0x00)
39 #define ERXNDH		(0x0B|0x00)
40 #define ERXRDPTL	(0x0C|0x00)
41 #define ERXRDPTH	(0x0D|0x00)
42 #define ERXWRPTL	(0x0E|0x00)
43 #define ERXWRPTH	(0x0F|0x00)
44 #define EDMASTL		(0x10|0x00)
45 #define EDMASTH		(0x11|0x00)
46 #define EDMANDL		(0x12|0x00)
47 #define EDMANDH		(0x13|0x00)
48 #define EDMADSTL	(0x14|0x00)
49 #define EDMADSTH	(0x15|0x00)
50 #define EDMACSL		(0x16|0x00)
51 #define EDMACSH		(0x17|0x00)
52 /* Bank 1 registers */
53 #define EHT0		(0x00|0x20)
54 #define EHT1		(0x01|0x20)
55 #define EHT2		(0x02|0x20)
56 #define EHT3		(0x03|0x20)
57 #define EHT4		(0x04|0x20)
58 #define EHT5		(0x05|0x20)
59 #define EHT6		(0x06|0x20)
60 #define EHT7		(0x07|0x20)
61 #define EPMM0		(0x08|0x20)
62 #define EPMM1		(0x09|0x20)
63 #define EPMM2		(0x0A|0x20)
64 #define EPMM3		(0x0B|0x20)
65 #define EPMM4		(0x0C|0x20)
66 #define EPMM5		(0x0D|0x20)
67 #define EPMM6		(0x0E|0x20)
68 #define EPMM7		(0x0F|0x20)
69 #define EPMCSL		(0x10|0x20)
70 #define EPMCSH		(0x11|0x20)
71 #define EPMOL		(0x14|0x20)
72 #define EPMOH		(0x15|0x20)
73 #define EWOLIE		(0x16|0x20)
74 #define EWOLIR		(0x17|0x20)
75 #define ERXFCON		(0x18|0x20)
76 #define EPKTCNT		(0x19|0x20)
77 /* Bank 2 registers */
78 #define MACON1		(0x00|0x40|SPRD_MASK)
79 /* #define MACON2	(0x01|0x40|SPRD_MASK) */
80 #define MACON3		(0x02|0x40|SPRD_MASK)
81 #define MACON4		(0x03|0x40|SPRD_MASK)
82 #define MABBIPG		(0x04|0x40|SPRD_MASK)
83 #define MAIPGL		(0x06|0x40|SPRD_MASK)
84 #define MAIPGH		(0x07|0x40|SPRD_MASK)
85 #define MACLCON1	(0x08|0x40|SPRD_MASK)
86 #define MACLCON2	(0x09|0x40|SPRD_MASK)
87 #define MAMXFLL		(0x0A|0x40|SPRD_MASK)
88 #define MAMXFLH		(0x0B|0x40|SPRD_MASK)
89 #define MAPHSUP		(0x0D|0x40|SPRD_MASK)
90 #define MICON		(0x11|0x40|SPRD_MASK)
91 #define MICMD		(0x12|0x40|SPRD_MASK)
92 #define MIREGADR	(0x14|0x40|SPRD_MASK)
93 #define MIWRL		(0x16|0x40|SPRD_MASK)
94 #define MIWRH		(0x17|0x40|SPRD_MASK)
95 #define MIRDL		(0x18|0x40|SPRD_MASK)
96 #define MIRDH		(0x19|0x40|SPRD_MASK)
97 /* Bank 3 registers */
98 #define MAADR1		(0x00|0x60|SPRD_MASK)
99 #define MAADR0		(0x01|0x60|SPRD_MASK)
100 #define MAADR3		(0x02|0x60|SPRD_MASK)
101 #define MAADR2		(0x03|0x60|SPRD_MASK)
102 #define MAADR5		(0x04|0x60|SPRD_MASK)
103 #define MAADR4		(0x05|0x60|SPRD_MASK)
104 #define EBSTSD		(0x06|0x60)
105 #define EBSTCON		(0x07|0x60)
106 #define EBSTCSL		(0x08|0x60)
107 #define EBSTCSH		(0x09|0x60)
108 #define MISTAT		(0x0A|0x60|SPRD_MASK)
109 #define EREVID		(0x12|0x60)
110 #define ECOCON		(0x15|0x60)
111 #define EFLOCON		(0x17|0x60)
112 #define EPAUSL		(0x18|0x60)
113 #define EPAUSH		(0x19|0x60)
114 /* PHY registers */
115 #define PHCON1		0x00
116 #define PHSTAT1		0x01
117 #define PHHID1		0x02
118 #define PHHID2		0x03
119 #define PHCON2		0x10
120 #define PHSTAT2		0x11
121 #define PHIE		0x12
122 #define PHIR		0x13
123 #define PHLCON		0x14
124 
125 /* ENC28J60 EIE Register Bit Definitions */
126 #define EIE_INTIE	0x80
127 #define EIE_PKTIE	0x40
128 #define EIE_DMAIE	0x20
129 #define EIE_LINKIE	0x10
130 #define EIE_TXIE	0x08
131 /* #define EIE_WOLIE	0x04 (reserved) */
132 #define EIE_TXERIE	0x02
133 #define EIE_RXERIE	0x01
134 /* ENC28J60 EIR Register Bit Definitions */
135 #define EIR_PKTIF	0x40
136 #define EIR_DMAIF	0x20
137 #define EIR_LINKIF	0x10
138 #define EIR_TXIF	0x08
139 /* #define EIR_WOLIF	0x04 (reserved) */
140 #define EIR_TXERIF	0x02
141 #define EIR_RXERIF	0x01
142 /* ENC28J60 ESTAT Register Bit Definitions */
143 #define ESTAT_INT	0x80
144 #define ESTAT_LATECOL	0x10
145 #define ESTAT_RXBUSY	0x04
146 #define ESTAT_TXABRT	0x02
147 #define ESTAT_CLKRDY	0x01
148 /* ENC28J60 ECON2 Register Bit Definitions */
149 #define ECON2_AUTOINC	0x80
150 #define ECON2_PKTDEC	0x40
151 #define ECON2_PWRSV	0x20
152 #define ECON2_VRPS	0x08
153 /* ENC28J60 ECON1 Register Bit Definitions */
154 #define ECON1_TXRST	0x80
155 #define ECON1_RXRST	0x40
156 #define ECON1_DMAST	0x20
157 #define ECON1_CSUMEN	0x10
158 #define ECON1_TXRTS	0x08
159 #define ECON1_RXEN	0x04
160 #define ECON1_BSEL1	0x02
161 #define ECON1_BSEL0	0x01
162 /* ENC28J60 MACON1 Register Bit Definitions */
163 #define MACON1_LOOPBK	0x10
164 #define MACON1_TXPAUS	0x08
165 #define MACON1_RXPAUS	0x04
166 #define MACON1_PASSALL	0x02
167 #define MACON1_MARXEN	0x01
168 /* ENC28J60 MACON2 Register Bit Definitions */
169 #define MACON2_MARST	0x80
170 #define MACON2_RNDRST	0x40
171 #define MACON2_MARXRST	0x08
172 #define MACON2_RFUNRST	0x04
173 #define MACON2_MATXRST	0x02
174 #define MACON2_TFUNRST	0x01
175 /* ENC28J60 MACON3 Register Bit Definitions */
176 #define MACON3_PADCFG2	0x80
177 #define MACON3_PADCFG1	0x40
178 #define MACON3_PADCFG0	0x20
179 #define MACON3_TXCRCEN	0x10
180 #define MACON3_PHDRLEN	0x08
181 #define MACON3_HFRMLEN	0x04
182 #define MACON3_FRMLNEN	0x02
183 #define MACON3_FULDPX	0x01
184 /* ENC28J60 MICMD Register Bit Definitions */
185 #define MICMD_MIISCAN	0x02
186 #define MICMD_MIIRD	0x01
187 /* ENC28J60 MISTAT Register Bit Definitions */
188 #define MISTAT_NVALID	0x04
189 #define MISTAT_SCAN	0x02
190 #define MISTAT_BUSY	0x01
191 /* ENC28J60 ERXFCON Register Bit Definitions */
192 #define ERXFCON_UCEN	0x80
193 #define ERXFCON_ANDOR	0x40
194 #define ERXFCON_CRCEN	0x20
195 #define ERXFCON_PMEN	0x10
196 #define ERXFCON_MPEN	0x08
197 #define ERXFCON_HTEN	0x04
198 #define ERXFCON_MCEN	0x02
199 #define ERXFCON_BCEN	0x01
200 
201 /* ENC28J60 PHY PHCON1 Register Bit Definitions */
202 #define PHCON1_PRST	0x8000
203 #define PHCON1_PLOOPBK	0x4000
204 #define PHCON1_PPWRSV	0x0800
205 #define PHCON1_PDPXMD	0x0100
206 /* ENC28J60 PHY PHSTAT1 Register Bit Definitions */
207 #define PHSTAT1_PFDPX	0x1000
208 #define PHSTAT1_PHDPX	0x0800
209 #define PHSTAT1_LLSTAT	0x0004
210 #define PHSTAT1_JBSTAT	0x0002
211 /* ENC28J60 PHY PHSTAT2 Register Bit Definitions */
212 #define PHSTAT2_TXSTAT	(1 << 13)
213 #define PHSTAT2_RXSTAT	(1 << 12)
214 #define PHSTAT2_COLSTAT	(1 << 11)
215 #define PHSTAT2_LSTAT	(1 << 10)
216 #define PHSTAT2_DPXSTAT	(1 << 9)
217 #define PHSTAT2_PLRITY	(1 << 5)
218 /* ENC28J60 PHY PHCON2 Register Bit Definitions */
219 #define PHCON2_FRCLINK	0x4000
220 #define PHCON2_TXDIS	0x2000
221 #define PHCON2_JABBER	0x0400
222 #define PHCON2_HDLDIS	0x0100
223 /* ENC28J60 PHY PHIE Register Bit Definitions */
224 #define PHIE_PLNKIE	(1 << 4)
225 #define PHIE_PGEIE	(1 << 1)
226 /* ENC28J60 PHY PHIR Register Bit Definitions */
227 #define PHIR_PLNKIF	(1 << 4)
228 #define PHIR_PGEIF	(1 << 1)
229 
230 /* ENC28J60 Packet Control Byte Bit Definitions */
231 #define PKTCTRL_PHUGEEN		0x08
232 #define PKTCTRL_PPADEN		0x04
233 #define PKTCTRL_PCRCEN		0x02
234 #define PKTCTRL_POVERRIDE	0x01
235 
236 /* ENC28J60 Transmit Status Vector */
237 #define TSV_TXBYTECNT		0
238 #define TSV_TXCOLLISIONCNT	16
239 #define TSV_TXCRCERROR		20
240 #define TSV_TXLENCHKERROR	21
241 #define TSV_TXLENOUTOFRANGE	22
242 #define TSV_TXDONE		23
243 #define TSV_TXMULTICAST		24
244 #define TSV_TXBROADCAST		25
245 #define TSV_TXPACKETDEFER	26
246 #define TSV_TXEXDEFER		27
247 #define TSV_TXEXCOLLISION	28
248 #define TSV_TXLATECOLLISION	29
249 #define TSV_TXGIANT		30
250 #define TSV_TXUNDERRUN		31
251 #define TSV_TOTBYTETXONWIRE	32
252 #define TSV_TXCONTROLFRAME	48
253 #define TSV_TXPAUSEFRAME	49
254 #define TSV_BACKPRESSUREAPP	50
255 #define TSV_TXVLANTAGFRAME	51
256 
257 #define TSV_SIZE		7
258 #define TSV_BYTEOF(x)		((x) / 8)
259 #define TSV_BITMASK(x)		(1 << ((x) % 8))
260 #define TSV_GETBIT(x, y)	(((x)[TSV_BYTEOF(y)] & TSV_BITMASK(y)) ? 1 : 0)
261 
262 /* ENC28J60 Receive Status Vector */
263 #define RSV_RXLONGEVDROPEV	16
264 #define RSV_CARRIEREV		18
265 #define RSV_CRCERROR		20
266 #define RSV_LENCHECKERR		21
267 #define RSV_LENOUTOFRANGE	22
268 #define RSV_RXOK		23
269 #define RSV_RXMULTICAST		24
270 #define RSV_RXBROADCAST		25
271 #define RSV_DRIBBLENIBBLE	26
272 #define RSV_RXCONTROLFRAME	27
273 #define RSV_RXPAUSEFRAME	28
274 #define RSV_RXUNKNOWNOPCODE	29
275 #define RSV_RXTYPEVLAN		30
276 
277 #define RSV_SIZE		6
278 #define RSV_BITMASK(x)		(1 << ((x) - 16))
279 #define RSV_GETBIT(x, y)	(((x) & RSV_BITMASK(y)) ? 1 : 0)
280 
281 
282 /* SPI operation codes */
283 #define ENC28J60_READ_CTRL_REG	0x00
284 #define ENC28J60_READ_BUF_MEM	0x3A
285 #define ENC28J60_WRITE_CTRL_REG 0x40
286 #define ENC28J60_WRITE_BUF_MEM	0x7A
287 #define ENC28J60_BIT_FIELD_SET	0x80
288 #define ENC28J60_BIT_FIELD_CLR	0xA0
289 #define ENC28J60_SOFT_RESET	0xFF
290 
291 
292 /* buffer boundaries applied to internal 8K ram
293  * entire available packet buffer space is allocated.
294  * Give TX buffer space for one full ethernet frame (~1500 bytes)
295  * receive buffer gets the rest */
296 #define TXSTART_INIT		0x1A00
297 #define TXEND_INIT		0x1FFF
298 
299 /* Put RX buffer at 0 as suggested by the Errata datasheet */
300 #define RXSTART_INIT		0x0000
301 #define RXEND_INIT		0x19FF
302 
303 /* maximum ethernet frame length */
304 #define MAX_FRAMELEN		1518
305 
306 /* Preferred half duplex: LEDA: Link status LEDB: Rx/Tx activity */
307 #define ENC28J60_LAMPS_MODE	0x3476
308 
309 #endif
310