1 /*-
2  * Principal Author: Parag Patel
3  * Copyright (c) 2001
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice unmodified, this list of conditions, and the following
11  *    disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * Additonal Copyright (c) 2001 by Traakan Software under same licence.
29  * Secondary Author: Matthew Jacob
30  */
31 
32 /*
33  * Marvell E1000 PHY registers
34  */
35 
36 #define E1000_MAX_REG_ADDRESS		0x1F
37 
38 #define E1000_CR			0x00	/* control register */
39 #define E1000_CR_SPEED_SELECT_MSB	0x0040
40 #define E1000_CR_COLL_TEST_ENABLE	0x0080
41 #define E1000_CR_FULL_DUPLEX		0x0100
42 #define E1000_CR_RESTART_AUTO_NEG	0x0200
43 #define E1000_CR_ISOLATE		0x0400
44 #define E1000_CR_POWER_DOWN		0x0800
45 #define E1000_CR_AUTO_NEG_ENABLE	0x1000
46 #define E1000_CR_SPEED_SELECT_LSB	0x2000
47 #define E1000_CR_LOOPBACK		0x4000
48 #define E1000_CR_RESET			0x8000
49 
50 #define E1000_CR_SPEED_1000		0x0040
51 #define E1000_CR_SPEED_100		0x2000
52 #define E1000_CR_SPEED_10		0x0000
53 
54 #define E1000_SR			0x01	/* status register */
55 #define E1000_SR_EXTENDED		0x0001
56 #define E1000_SR_JABBER_DETECT		0x0002
57 #define E1000_SR_LINK_STATUS		0x0004
58 #define E1000_SR_AUTO_NEG		0x0008
59 #define E1000_SR_REMOTE_FAULT		0x0010
60 #define E1000_SR_AUTO_NEG_COMPLETE	0x0020
61 #define E1000_SR_PREAMBLE_SUPPRESS	0x0040
62 #define E1000_SR_EXTENDED_STATUS	0x0100
63 #define E1000_SR_100T2			0x0200
64 #define E1000_SR_100T2_FD		0x0400
65 #define E1000_SR_10T			0x0800
66 #define E1000_SR_10T_FD			0x1000
67 #define E1000_SR_100TX			0x2000
68 #define E1000_SR_100TX_FD		0x4000
69 #define E1000_SR_100T4			0x8000
70 
71 #define E1000_ID1			0x02	/* ID register 1 */
72 #define E1000_ID2			0x03	/* ID register 2 */
73 #define E1000_ID_88E1000		0x01410C50
74 #define E1000_ID_88E1000S		0x01410C40
75 #define E1000_ID_88E1011		0x01410C20
76 #define E1000_ID_MASK			0xFFFFFFF0
77 
78 #define E1000_AR			0x04	/* autonegotiation advertise reg */
79 #define E1000_AR_SELECTOR_FIELD		0x0001
80 #define E1000_AR_10T			0x0020
81 #define E1000_AR_10T_FD			0x0040
82 #define E1000_AR_100TX			0x0080
83 #define E1000_AR_100TX_FD		0x0100
84 #define E1000_AR_100T4			0x0200
85 #define E1000_AR_PAUSE			0x0400
86 #define E1000_AR_ASM_DIR		0x0800
87 #define E1000_AR_REMOTE_FAULT		0x2000
88 #define E1000_AR_NEXT_PAGE		0x8000
89 #define E1000_AR_SPEED_MASK		0x01E0
90 
91 /* Autonegotiation register bits for fiber cards (Alaska Only!) */
92 #define E1000_FA_1000X_FD		0x0020
93 #define E1000_FA_1000X			0x0040
94 #define E1000_FA_SYM_PAUSE		0x0080
95 #define E1000_FA_ASYM_PAUSE		0x0100
96 #define E1000_FA_FAULT1			0x1000
97 #define E1000_FA_FAULT2			0x2000
98 #define E1000_FA_NEXT_PAGE		0x8000
99 
100 #define E1000_LPAR			0x05	/* autoneg link partner abilities reg */
101 #define E1000_LPAR_SELECTOR_FIELD	0x0001
102 #define E1000_LPAR_10T			0x0020
103 #define E1000_LPAR_10T_FD		0x0040
104 #define E1000_LPAR_100TX		0x0080
105 #define E1000_LPAR_100TX_FD		0x0100
106 #define E1000_LPAR_100T4		0x0200
107 #define E1000_LPAR_PAUSE		0x0400
108 #define E1000_LPAR_ASM_DIR		0x0800
109 #define E1000_LPAR_REMOTE_FAULT		0x2000
110 #define E1000_LPAR_ACKNOWLEDGE		0x4000
111 #define E1000_LPAR_NEXT_PAGE		0x8000
112 
113 /* autoneg link partner ability register bits for fiber cards (Alaska Only!) */
114 #define E1000_FPAR_1000X_FD		0x0020
115 #define E1000_FPAR_1000X		0x0040
116 #define E1000_FPAR_SYM_PAUSE		0x0080
117 #define E1000_FPAR_ASYM_PAUSE		0x0100
118 #define E1000_FPAR_FAULT1		0x1000
119 #define E1000_FPAR_FAULT2		0x2000
120 #define E1000_FPAR_ACK			0x4000
121 #define E1000_FPAR_NEXT_PAGE		0x8000
122 
123 #define E1000_ER			0x06	/* autoneg expansion reg */
124 #define E1000_ER_LP_NWAY		0x0001
125 #define E1000_ER_PAGE_RXD		0x0002
126 #define E1000_ER_NEXT_PAGE		0x0004
127 #define E1000_ER_LP_NEXT_PAGE		0x0008
128 #define E1000_ER_PAR_DETECT_FAULT	0x0100
129 
130 #define E1000_NPTX			0x07	/* autoneg next page TX */
131 #define E1000_NPTX_MSG_CODE_FIELD	0x0001
132 #define E1000_NPTX_TOGGLE		0x0800
133 #define E1000_NPTX_ACKNOWLDGE2		0x1000
134 #define E1000_NPTX_MSG_PAGE		0x2000
135 #define E1000_NPTX_NEXT_PAGE		0x8000
136 
137 #define E1000_RNPR			0x08	/* autoneg link-partner (?) next page */
138 #define E1000_RNPR_MSG_CODE_FIELD	0x0001
139 #define E1000_RNPR_TOGGLE		0x0800
140 #define E1000_RNPR_ACKNOWLDGE2		0x1000
141 #define E1000_RNPR_MSG_PAGE		0x2000
142 #define E1000_RNPR_ACKNOWLDGE		0x4000
143 #define E1000_RNPR_NEXT_PAGE		0x8000
144 
145 #define E1000_1GCR			0x09	/* 1000T (1G) control reg */
146 #define E1000_1GCR_ASYM_PAUSE		0x0080
147 #define E1000_1GCR_1000T		0x0100
148 #define E1000_1GCR_1000T_FD		0x0200
149 #define E1000_1GCR_REPEATER_DTE		0x0400
150 #define E1000_1GCR_MS_VALUE		0x0800
151 #define E1000_1GCR_MS_ENABLE		0x1000
152 #define E1000_1GCR_TEST_MODE_NORMAL	0x0000
153 #define E1000_1GCR_TEST_MODE_1		0x2000
154 #define E1000_1GCR_TEST_MODE_2		0x4000
155 #define E1000_1GCR_TEST_MODE_3		0x6000
156 #define E1000_1GCR_TEST_MODE_4		0x8000
157 #define E1000_1GCR_SPEED_MASK		0x0300
158 
159 #define E1000_1GSR			0x0A	/* 1000T (1G) status reg */
160 #define E1000_1GSR_IDLE_ERROR_CNT	0x0000
161 #define E1000_1GSR_ASYM_PAUSE_DIR	0x0100
162 #define E1000_1GSR_LP			0x0400
163 #define E1000_1GSR_LP_FD		0x0800
164 #define E1000_1GSR_REMOTE_RX_STATUS	0x1000
165 #define E1000_1GSR_LOCAL_RX_STATUS	0x2000
166 #define E1000_1GSR_MS_CONFIG_RES	0x4000
167 #define E1000_1GSR_MS_CONFIG_FAULT	0x8000
168 
169 #define E1000_ESR			0x0F	/* IEEE extended status reg */
170 #define E1000_ESR_1000T			0x1000
171 #define E1000_ESR_1000T_FD		0x2000
172 #define E1000_ESR_1000X			0x4000
173 #define E1000_ESR_1000X_FD		0x8000
174 
175 #define E1000_TX_POLARITY_MASK		0x0100
176 #define E1000_TX_NORMAL_POLARITY	0
177 
178 #define E1000_AUTO_POLARITY_DISABLE	0x0010
179 
180 #define E1000_SCR			0x10	/* special control register */
181 #define E1000_SCR_JABBER_DISABLE	0x0001
182 #define E1000_SCR_POLARITY_REVERSAL	0x0002
183 #define E1000_SCR_SQE_TEST		0x0004
184 #define E1000_SCR_INT_FIFO_DISABLE	0x0008
185 #define E1000_SCR_CLK125_DISABLE	0x0010
186 #define E1000_SCR_MDI_MANUAL_MODE	0x0000
187 #define E1000_SCR_MDIX_MANUAL_MODE	0x0020
188 #define E1000_SCR_AUTO_X_1000T		0x0040
189 #define E1000_SCR_AUTO_X_MODE		0x0060
190 #define E1000_SCR_10BT_EXT_ENABLE	0x0080
191 #define E1000_SCR_MII_5BIT_ENABLE	0x0100
192 #define E1000_SCR_SCRAMBLER_DISABLE	0x0200
193 #define E1000_SCR_FORCE_LINK_GOOD	0x0400
194 #define E1000_SCR_ASSERT_CRS_ON_TX	0x0800
195 #define E1000_SCR_RX_FIFO_DEPTH_6	0x0000
196 #define E1000_SCR_RX_FIFO_DEPTH_8	0x1000
197 #define E1000_SCR_RX_FIFO_DEPTH_10	0x2000
198 #define E1000_SCR_RX_FIFO_DEPTH_12	0x3000
199 #define E1000_SCR_TX_FIFO_DEPTH_6	0x0000
200 #define E1000_SCR_TX_FIFO_DEPTH_8	0x4000
201 #define E1000_SCR_TX_FIFO_DEPTH_10	0x8000
202 #define E1000_SCR_TX_FIFO_DEPTH_12	0xC000
203 
204 /* 88E3016 only */
205 #define	E1000_SCR_AUTO_MDIX		0x0030
206 #define	E1000_SCR_SIGDET_POLARITY	0x0040
207 #define	E1000_SCR_EXT_DISTANCE		0x0080
208 #define	E1000_SCR_FEFI_DISABLE		0x0100
209 #define	E1000_SCR_NLP_GEN_DISABLE	0x0800
210 #define	E1000_SCR_LPNP			0x1000
211 #define	E1000_SCR_NLP_CHK_DISABLE	0x2000
212 #define	E1000_SCR_EN_DETECT		0x4000
213 
214 #define E1000_SCR_EN_DETECT_MASK	0x0300
215 
216 /* 88E1112 page 1 fiber specific control */
217 #define E1000_SCR_FIB_TX_DIS		0x0008
218 #define E1000_SCR_FIB_SIGDET_POLARITY	0x0200
219 #define E1000_SCR_FIB_FORCE_LINK	0x0400
220 
221 /* 88E1112 page 2 */
222 #define E1000_SCR_MODE_MASK		0x0380
223 #define E1000_SCR_MODE_AUTO		0x0180
224 #define E1000_SCR_MODE_COPPER		0x0280
225 #define E1000_SCR_MODE_1000BX		0x0380
226 
227 /* 88E1116 page 0 */
228 #define	E1000_SCR_POWER_DOWN		0x0004
229 /* 88E1116, 88E1149 page 2 */
230 #define	E1000_SCR_RGMII_POWER_UP	0x0008
231 
232 /* 88E1116, 88E1149 page 3 */
233 #define E1000_SCR_LED_STAT0_MASK	0x000F
234 #define E1000_SCR_LED_STAT1_MASK	0x00F0
235 #define E1000_SCR_LED_INIT_MASK		0x0F00
236 #define E1000_SCR_LED_LOS_MASK		0xF000
237 #define E1000_SCR_LED_STAT0(x)		((x) & E1000_SCR_LED_STAT0_MASK)
238 #define E1000_SCR_LED_STAT1(x)		((x) & E1000_SCR_LED_STAT1_MASK)
239 #define E1000_SCR_LED_INIT(x)		((x) & E1000_SCR_LED_INIT_MASK)
240 #define E1000_SCR_LED_LOS(x)		((x) & E1000_SCR_LED_LOS_MASK)
241 
242 #define E1000_SSR			0x11	/* special status register */
243 #define E1000_SSR_JABBER		0x0001
244 #define E1000_SSR_REV_POLARITY		0x0002
245 #define E1000_SSR_MDIX			0x0020
246 #define E1000_SSR_LINK			0x0400
247 #define E1000_SSR_SPD_DPLX_RESOLVED	0x0800
248 #define E1000_SSR_PAGE_RCVD		0x1000
249 #define E1000_SSR_DUPLEX		0x2000
250 #define E1000_SSR_SPEED			0xC000
251 #define E1000_SSR_10MBS			0x0000
252 #define E1000_SSR_100MBS		0x4000
253 #define E1000_SSR_1000MBS		0x8000
254 
255 #define E1000_IER			0x12	/* interrupt enable reg */
256 #define E1000_IER_JABBER		0x0001
257 #define E1000_IER_POLARITY_CHANGE	0x0002
258 #define E1000_IER_MDIX_CHANGE		0x0040
259 #define E1000_IER_FIFO_OVER_UNDERUN	0x0080
260 #define E1000_IER_FALSE_CARRIER		0x0100
261 #define E1000_IER_SYMBOL_ERROR		0x0200
262 #define E1000_IER_LINK_STAT_CHANGE	0x0400
263 #define E1000_IER_AUTO_NEG_COMPLETE	0x0800
264 #define E1000_IER_PAGE_RECEIVED		0x1000
265 #define E1000_IER_DUPLEX_CHANGED	0x2000
266 #define E1000_IER_SPEED_CHANGED		0x4000
267 #define E1000_IER_AUTO_NEG_ERR		0x8000
268 
269 /* 88E1116, 88E1149 page 3, LED timer control. */
270 #define	E1000_PULSE_MASK	0x7000
271 #define	E1000_PULSE_NO_STR	0	/* no pulse stretching */
272 #define	E1000_PULSE_21MS	1	/* 21 ms to 42 ms */
273 #define	E1000_PULSE_42MS	2	/* 42 ms to 84 ms */
274 #define	E1000_PULSE_84MS	3	/* 84 ms to 170 ms */
275 #define	E1000_PULSE_170MS	4	/* 170 ms to 340 ms */
276 #define	E1000_PULSE_340MS	5	/* 340 ms to 670 ms */
277 #define	E1000_PULSE_670MS	6	/* 670 ms to 1300 ms */
278 #define	E1000_PULSE_1300MS	7	/* 1300 ms to 2700 ms */
279 #define	E1000_PULSE_DUR(x)	((x) &	E1000_PULSE_MASK)
280 
281 #define	E1000_BLINK_MASK	0x0700
282 #define	E1000_BLINK_42MS	0	/* 42 ms */
283 #define	E1000_BLINK_84MS	1	/* 84 ms */
284 #define	E1000_BLINK_170MS	2	/* 170 ms */
285 #define	E1000_BLINK_340MS	3	/* 340 ms */
286 #define	E1000_BLINK_670MS	4	/* 670 ms */
287 #define	E1000_BLINK_RATE(x)	((x) &	E1000_BLINK_MASK)
288 
289 #define E1000_ISR			0x13	/* interrupt status reg */
290 #define E1000_ISR_JABBER		0x0001
291 #define E1000_ISR_POLARITY_CHANGE	0x0002
292 #define E1000_ISR_MDIX_CHANGE		0x0040
293 #define E1000_ISR_FIFO_OVER_UNDERUN	0x0080
294 #define E1000_ISR_FALSE_CARRIER		0x0100
295 #define E1000_ISR_SYMBOL_ERROR		0x0200
296 #define E1000_ISR_LINK_STAT_CHANGE	0x0400
297 #define E1000_ISR_AUTO_NEG_COMPLETE	0x0800
298 #define E1000_ISR_PAGE_RECEIVED		0x1000
299 #define E1000_ISR_DUPLEX_CHANGED	0x2000
300 #define E1000_ISR_SPEED_CHANGED		0x4000
301 #define E1000_ISR_AUTO_NEG_ERR		0x8000
302 
303 #define E1000_ESCR			0x14	/* extended special control reg */
304 #define E1000_ESCR_FIBER_LOOPBACK	0x4000
305 #define E1000_ESCR_DOWN_NO_IDLE		0x8000
306 #define E1000_ESCR_TX_CLK_2_5		0x0060
307 #define E1000_ESCR_TX_CLK_25		0x0070
308 #define E1000_ESCR_TX_CLK_0		0x0000
309 
310 #define E1000_RECR			0x15	/* RX error counter reg */
311 
312 #define E1000_EADR			0x16	/* extended address reg */
313 
314 #define E1000_LCR			0x18	/* LED control reg */
315 #define E1000_LCR_LED_TX		0x0001
316 #define E1000_LCR_LED_RX		0x0002
317 #define E1000_LCR_LED_DUPLEX		0x0004
318 #define E1000_LCR_LINK			0x0008
319 #define E1000_LCR_BLINK_42MS		0x0000
320 #define E1000_LCR_BLINK_84MS		0x0100
321 #define E1000_LCR_BLINK_170MS		0x0200
322 #define E1000_LCR_BLINK_340MS		0x0300
323 #define E1000_LCR_BLINK_670MS		0x0400
324 #define E1000_LCR_PULSE_OFF		0x0000
325 #define E1000_LCR_PULSE_21_42MS		0x1000
326 #define E1000_LCR_PULSE_42_84MS		0x2000
327 #define E1000_LCR_PULSE_84_170MS	0x3000
328 #define E1000_LCR_PULSE_170_340MS	0x4000
329 #define E1000_LCR_PULSE_340_670MS	0x5000
330 #define E1000_LCR_PULSE_670_13S		0x6000
331 #define E1000_LCR_PULSE_13_26S		0x7000
332 
333 /* The following register is found only on the 88E1011 Alaska PHY */
334 #define E1000_ESSR			0x1B	/* Extended PHY specific sts */
335 #define E1000_ESSR_FIBER_LINK		0x2000
336 #define E1000_ESSR_GMII_COPPER		0x000f
337 #define E1000_ESSR_GMII_FIBER		0x0007
338 #define E1000_ESSR_TBI_COPPER		0x000d
339 #define E1000_ESSR_TBI_FIBER		0x0005
340