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printk removal, receive reordering bugfix
[cor_2_6_31.git] / include / linux / mdio.h
blobcfdf1df2875e4e12eff9a21dd24e29f0e873b64c
1 /*
2 * linux/mdio.h: definitions for MDIO (clause 45) transceivers
3 * Copyright 2006-2009 Solarflare Communications Inc.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published
7 * by the Free Software Foundation, incorporated herein by reference.
8 */
9
10 #ifndef __LINUX_MDIO_H__
11 #define __LINUX_MDIO_H__
12
13 #include <linux/mii.h>
14
15 /* MDIO Manageable Devices (MMDs). */
16 #define MDIO_MMD_PMAPMD 1 /* Physical Medium Attachment/
17 * Physical Medium Dependent */
18 #define MDIO_MMD_WIS 2 /* WAN Interface Sublayer */
19 #define MDIO_MMD_PCS 3 /* Physical Coding Sublayer */
20 #define MDIO_MMD_PHYXS 4 /* PHY Extender Sublayer */
21 #define MDIO_MMD_DTEXS 5 /* DTE Extender Sublayer */
22 #define MDIO_MMD_TC 6 /* Transmission Convergence */
23 #define MDIO_MMD_AN 7 /* Auto-Negotiation */
24 #define MDIO_MMD_C22EXT 29 /* Clause 22 extension */
25 #define MDIO_MMD_VEND1 30 /* Vendor specific 1 */
26 #define MDIO_MMD_VEND2 31 /* Vendor specific 2 */
27
28 /* Generic MDIO registers. */
29 #define MDIO_CTRL1 MII_BMCR
30 #define MDIO_STAT1 MII_BMSR
31 #define MDIO_DEVID1 MII_PHYSID1
32 #define MDIO_DEVID2 MII_PHYSID2
33 #define MDIO_SPEED 4 /* Speed ability */
34 #define MDIO_DEVS1 5 /* Devices in package */
35 #define MDIO_DEVS2 6
36 #define MDIO_CTRL2 7 /* 10G control 2 */
37 #define MDIO_STAT2 8 /* 10G status 2 */
38 #define MDIO_PMA_TXDIS 9 /* 10G PMA/PMD transmit disable */
39 #define MDIO_PMA_RXDET 10 /* 10G PMA/PMD receive signal detect */
40 #define MDIO_PMA_EXTABLE 11 /* 10G PMA/PMD extended ability */
41 #define MDIO_PKGID1 14 /* Package identifier */
42 #define MDIO_PKGID2 15
43 #define MDIO_AN_ADVERTISE 16 /* AN advertising (base page) */
44 #define MDIO_AN_LPA 19 /* AN LP abilities (base page) */
45 #define MDIO_PHYXS_LNSTAT 24 /* PHY XGXS lane state */
46
47 /* Media-dependent registers. */
48 #define MDIO_PMA_10GBT_SWAPPOL 130 /* 10GBASE-T pair swap & polarity */
49 #define MDIO_PMA_10GBT_TXPWR 131 /* 10GBASE-T TX power control */
50 #define MDIO_PMA_10GBT_SNR 133 /* 10GBASE-T SNR margin, lane A.
51 * Lanes B-D are numbered 134-136. */
52 #define MDIO_PMA_10GBR_FECABLE 170 /* 10GBASE-R FEC ability */
53 #define MDIO_PCS_10GBX_STAT1 24 /* 10GBASE-X PCS status 1 */
54 #define MDIO_PCS_10GBRT_STAT1 32 /* 10GBASE-R/-T PCS status 1 */
55 #define MDIO_PCS_10GBRT_STAT2 33 /* 10GBASE-R/-T PCS status 2 */
56 #define MDIO_AN_10GBT_CTRL 32 /* 10GBASE-T auto-negotiation control */
57 #define MDIO_AN_10GBT_STAT 33 /* 10GBASE-T auto-negotiation status */
58
59 /* LASI (Link Alarm Status Interrupt) registers, defined by XENPAK MSA. */
60 #define MDIO_PMA_LASI_RXCTRL 0x9000 /* RX_ALARM control */
61 #define MDIO_PMA_LASI_TXCTRL 0x9001 /* TX_ALARM control */
62 #define MDIO_PMA_LASI_CTRL 0x9002 /* LASI control */
63 #define MDIO_PMA_LASI_RXSTAT 0x9003 /* RX_ALARM status */
64 #define MDIO_PMA_LASI_TXSTAT 0x9004 /* TX_ALARM status */
65 #define MDIO_PMA_LASI_STAT 0x9005 /* LASI status */
66
67 /* Control register 1. */
68 /* Enable extended speed selection */
69 #define MDIO_CTRL1_SPEEDSELEXT (BMCR_SPEED1000 | BMCR_SPEED100)
70 /* All speed selection bits */
71 #define MDIO_CTRL1_SPEEDSEL (MDIO_CTRL1_SPEEDSELEXT | 0x003c)
72 #define MDIO_CTRL1_FULLDPLX BMCR_FULLDPLX
73 #define MDIO_CTRL1_LPOWER BMCR_PDOWN
74 #define MDIO_CTRL1_RESET BMCR_RESET
75 #define MDIO_PMA_CTRL1_LOOPBACK 0x0001
76 #define MDIO_PMA_CTRL1_SPEED1000 BMCR_SPEED1000
77 #define MDIO_PMA_CTRL1_SPEED100 BMCR_SPEED100
78 #define MDIO_PCS_CTRL1_LOOPBACK BMCR_LOOPBACK
79 #define MDIO_PHYXS_CTRL1_LOOPBACK BMCR_LOOPBACK
80 #define MDIO_AN_CTRL1_RESTART BMCR_ANRESTART
81 #define MDIO_AN_CTRL1_ENABLE BMCR_ANENABLE
82 #define MDIO_AN_CTRL1_XNP 0x2000 /* Enable extended next page */
83
84 /* 10 Gb/s */
85 #define MDIO_CTRL1_SPEED10G (MDIO_CTRL1_SPEEDSELEXT | 0x00)
86 /* 10PASS-TS/2BASE-TL */
87 #define MDIO_CTRL1_SPEED10P2B (MDIO_CTRL1_SPEEDSELEXT | 0x04)
88
89 /* Status register 1. */
90 #define MDIO_STAT1_LPOWERABLE 0x0002 /* Low-power ability */
91 #define MDIO_STAT1_LSTATUS BMSR_LSTATUS
92 #define MDIO_STAT1_FAULT 0x0080 /* Fault */
93 #define MDIO_AN_STAT1_LPABLE 0x0001 /* Link partner AN ability */
94 #define MDIO_AN_STAT1_ABLE BMSR_ANEGCAPABLE
95 #define MDIO_AN_STAT1_RFAULT BMSR_RFAULT
96 #define MDIO_AN_STAT1_COMPLETE BMSR_ANEGCOMPLETE
97 #define MDIO_AN_STAT1_PAGE 0x0040 /* Page received */
98 #define MDIO_AN_STAT1_XNP 0x0080 /* Extended next page status */
99
100 /* Speed register. */
101 #define MDIO_SPEED_10G 0x0001 /* 10G capable */
102 #define MDIO_PMA_SPEED_2B 0x0002 /* 2BASE-TL capable */
103 #define MDIO_PMA_SPEED_10P 0x0004 /* 10PASS-TS capable */
104 #define MDIO_PMA_SPEED_1000 0x0010 /* 1000M capable */
105 #define MDIO_PMA_SPEED_100 0x0020 /* 100M capable */
106 #define MDIO_PMA_SPEED_10 0x0040 /* 10M capable */
107 #define MDIO_PCS_SPEED_10P2B 0x0002 /* 10PASS-TS/2BASE-TL capable */
108
109 /* Device present registers. */
110 #define MDIO_DEVS_PRESENT(devad) (1 << (devad))
111 #define MDIO_DEVS_PMAPMD MDIO_DEVS_PRESENT(MDIO_MMD_PMAPMD)
112 #define MDIO_DEVS_WIS MDIO_DEVS_PRESENT(MDIO_MMD_WIS)
113 #define MDIO_DEVS_PCS MDIO_DEVS_PRESENT(MDIO_MMD_PCS)
114 #define MDIO_DEVS_PHYXS MDIO_DEVS_PRESENT(MDIO_MMD_PHYXS)
115 #define MDIO_DEVS_DTEXS MDIO_DEVS_PRESENT(MDIO_MMD_DTEXS)
116 #define MDIO_DEVS_TC MDIO_DEVS_PRESENT(MDIO_MMD_TC)
117 #define MDIO_DEVS_AN MDIO_DEVS_PRESENT(MDIO_MMD_AN)
118 #define MDIO_DEVS_C22EXT MDIO_DEVS_PRESENT(MDIO_MMD_C22EXT)
119
120 /* Control register 2. */
121 #define MDIO_PMA_CTRL2_TYPE 0x000f /* PMA/PMD type selection */
122 #define MDIO_PMA_CTRL2_10GBCX4 0x0000 /* 10GBASE-CX4 type */
123 #define MDIO_PMA_CTRL2_10GBEW 0x0001 /* 10GBASE-EW type */
124 #define MDIO_PMA_CTRL2_10GBLW 0x0002 /* 10GBASE-LW type */
125 #define MDIO_PMA_CTRL2_10GBSW 0x0003 /* 10GBASE-SW type */
126 #define MDIO_PMA_CTRL2_10GBLX4 0x0004 /* 10GBASE-LX4 type */
127 #define MDIO_PMA_CTRL2_10GBER 0x0005 /* 10GBASE-ER type */
128 #define MDIO_PMA_CTRL2_10GBLR 0x0006 /* 10GBASE-LR type */
129 #define MDIO_PMA_CTRL2_10GBSR 0x0007 /* 10GBASE-SR type */
130 #define MDIO_PMA_CTRL2_10GBLRM 0x0008 /* 10GBASE-LRM type */
131 #define MDIO_PMA_CTRL2_10GBT 0x0009 /* 10GBASE-T type */
132 #define MDIO_PMA_CTRL2_10GBKX4 0x000a /* 10GBASE-KX4 type */
133 #define MDIO_PMA_CTRL2_10GBKR 0x000b /* 10GBASE-KR type */
134 #define MDIO_PMA_CTRL2_1000BT 0x000c /* 1000BASE-T type */
135 #define MDIO_PMA_CTRL2_1000BKX 0x000d /* 1000BASE-KX type */
136 #define MDIO_PMA_CTRL2_100BTX 0x000e /* 100BASE-TX type */
137 #define MDIO_PMA_CTRL2_10BT 0x000f /* 10BASE-T type */
138 #define MDIO_PCS_CTRL2_TYPE 0x0003 /* PCS type selection */
139 #define MDIO_PCS_CTRL2_10GBR 0x0000 /* 10GBASE-R type */
140 #define MDIO_PCS_CTRL2_10GBX 0x0001 /* 10GBASE-X type */
141 #define MDIO_PCS_CTRL2_10GBW 0x0002 /* 10GBASE-W type */
142 #define MDIO_PCS_CTRL2_10GBT 0x0003 /* 10GBASE-T type */
143
144 /* Status register 2. */
145 #define MDIO_STAT2_RXFAULT 0x0400 /* Receive fault */
146 #define MDIO_STAT2_TXFAULT 0x0800 /* Transmit fault */
147 #define MDIO_STAT2_DEVPRST 0xc000 /* Device present */
148 #define MDIO_STAT2_DEVPRST_VAL 0x8000 /* Device present value */
149 #define MDIO_PMA_STAT2_LBABLE 0x0001 /* PMA loopback ability */
150 #define MDIO_PMA_STAT2_10GBEW 0x0002 /* 10GBASE-EW ability */
151 #define MDIO_PMA_STAT2_10GBLW 0x0004 /* 10GBASE-LW ability */
152 #define MDIO_PMA_STAT2_10GBSW 0x0008 /* 10GBASE-SW ability */
153 #define MDIO_PMA_STAT2_10GBLX4 0x0010 /* 10GBASE-LX4 ability */
154 #define MDIO_PMA_STAT2_10GBER 0x0020 /* 10GBASE-ER ability */
155 #define MDIO_PMA_STAT2_10GBLR 0x0040 /* 10GBASE-LR ability */
156 #define MDIO_PMA_STAT2_10GBSR 0x0080 /* 10GBASE-SR ability */
157 #define MDIO_PMD_STAT2_TXDISAB 0x0100 /* PMD TX disable ability */
158 #define MDIO_PMA_STAT2_EXTABLE 0x0200 /* Extended abilities */
159 #define MDIO_PMA_STAT2_RXFLTABLE 0x1000 /* Receive fault ability */
160 #define MDIO_PMA_STAT2_TXFLTABLE 0x2000 /* Transmit fault ability */
161 #define MDIO_PCS_STAT2_10GBR 0x0001 /* 10GBASE-R capable */
162 #define MDIO_PCS_STAT2_10GBX 0x0002 /* 10GBASE-X capable */
163 #define MDIO_PCS_STAT2_10GBW 0x0004 /* 10GBASE-W capable */
164 #define MDIO_PCS_STAT2_RXFLTABLE 0x1000 /* Receive fault ability */
165 #define MDIO_PCS_STAT2_TXFLTABLE 0x2000 /* Transmit fault ability */
166
167 /* Transmit disable register. */
168 #define MDIO_PMD_TXDIS_GLOBAL 0x0001 /* Global PMD TX disable */
169 #define MDIO_PMD_TXDIS_0 0x0002 /* PMD TX disable 0 */
170 #define MDIO_PMD_TXDIS_1 0x0004 /* PMD TX disable 1 */
171 #define MDIO_PMD_TXDIS_2 0x0008 /* PMD TX disable 2 */
172 #define MDIO_PMD_TXDIS_3 0x0010 /* PMD TX disable 3 */
173
174 /* Receive signal detect register. */
175 #define MDIO_PMD_RXDET_GLOBAL 0x0001 /* Global PMD RX signal detect */
176 #define MDIO_PMD_RXDET_0 0x0002 /* PMD RX signal detect 0 */
177 #define MDIO_PMD_RXDET_1 0x0004 /* PMD RX signal detect 1 */
178 #define MDIO_PMD_RXDET_2 0x0008 /* PMD RX signal detect 2 */
179 #define MDIO_PMD_RXDET_3 0x0010 /* PMD RX signal detect 3 */
180
181 /* Extended abilities register. */
182 #define MDIO_PMA_EXTABLE_10GCX4 0x0001 /* 10GBASE-CX4 ability */
183 #define MDIO_PMA_EXTABLE_10GBLRM 0x0002 /* 10GBASE-LRM ability */
184 #define MDIO_PMA_EXTABLE_10GBT 0x0004 /* 10GBASE-T ability */
185 #define MDIO_PMA_EXTABLE_10GBKX4 0x0008 /* 10GBASE-KX4 ability */
186 #define MDIO_PMA_EXTABLE_10GBKR 0x0010 /* 10GBASE-KR ability */
187 #define MDIO_PMA_EXTABLE_1000BT 0x0020 /* 1000BASE-T ability */
188 #define MDIO_PMA_EXTABLE_1000BKX 0x0040 /* 1000BASE-KX ability */
189 #define MDIO_PMA_EXTABLE_100BTX 0x0080 /* 100BASE-TX ability */
190 #define MDIO_PMA_EXTABLE_10BT 0x0100 /* 10BASE-T ability */
191
192 /* PHY XGXS lane state register. */
193 #define MDIO_PHYXS_LNSTAT_SYNC0 0x0001
194 #define MDIO_PHYXS_LNSTAT_SYNC1 0x0002
195 #define MDIO_PHYXS_LNSTAT_SYNC2 0x0004
196 #define MDIO_PHYXS_LNSTAT_SYNC3 0x0008
197 #define MDIO_PHYXS_LNSTAT_ALIGN 0x1000
198
199 /* PMA 10GBASE-T pair swap & polarity */
200 #define MDIO_PMA_10GBT_SWAPPOL_ABNX 0x0001 /* Pair A/B uncrossed */
201 #define MDIO_PMA_10GBT_SWAPPOL_CDNX 0x0002 /* Pair C/D uncrossed */
202 #define MDIO_PMA_10GBT_SWAPPOL_AREV 0x0100 /* Pair A polarity reversed */
203 #define MDIO_PMA_10GBT_SWAPPOL_BREV 0x0200 /* Pair B polarity reversed */
204 #define MDIO_PMA_10GBT_SWAPPOL_CREV 0x0400 /* Pair C polarity reversed */
205 #define MDIO_PMA_10GBT_SWAPPOL_DREV 0x0800 /* Pair D polarity reversed */
206
207 /* PMA 10GBASE-T TX power register. */
208 #define MDIO_PMA_10GBT_TXPWR_SHORT 0x0001 /* Short-reach mode */
209
210 /* PMA 10GBASE-T SNR registers. */
211 /* Value is SNR margin in dB, clamped to range [-127, 127], plus 0x8000. */
212 #define MDIO_PMA_10GBT_SNR_BIAS 0x8000
213 #define MDIO_PMA_10GBT_SNR_MAX 127
214
215 /* PMA 10GBASE-R FEC ability register. */
216 #define MDIO_PMA_10GBR_FECABLE_ABLE 0x0001 /* FEC ability */
217 #define MDIO_PMA_10GBR_FECABLE_ERRABLE 0x0002 /* FEC error indic. ability */
218
219 /* PCS 10GBASE-R/-T status register 1. */
220 #define MDIO_PCS_10GBRT_STAT1_BLKLK 0x0001 /* Block lock attained */
221
222 /* PCS 10GBASE-R/-T status register 2. */
223 #define MDIO_PCS_10GBRT_STAT2_ERR 0x00ff
224 #define MDIO_PCS_10GBRT_STAT2_BER 0x3f00
225
226 /* AN 10GBASE-T control register. */
227 #define MDIO_AN_10GBT_CTRL_ADV10G 0x1000 /* Advertise 10GBASE-T */
228
229 /* AN 10GBASE-T status register. */
230 #define MDIO_AN_10GBT_STAT_LPTRR 0x0200 /* LP training reset req. */
231 #define MDIO_AN_10GBT_STAT_LPLTABLE 0x0400 /* LP loop timing ability */
232 #define MDIO_AN_10GBT_STAT_LP10G 0x0800 /* LP is 10GBT capable */
233 #define MDIO_AN_10GBT_STAT_REMOK 0x1000 /* Remote OK */
234 #define MDIO_AN_10GBT_STAT_LOCOK 0x2000 /* Local OK */
235 #define MDIO_AN_10GBT_STAT_MS 0x4000 /* Master/slave config */
236 #define MDIO_AN_10GBT_STAT_MSFLT 0x8000 /* Master/slave config fault */
237
238 /* LASI RX_ALARM control/status registers. */
239 #define MDIO_PMA_LASI_RX_PHYXSLFLT 0x0001 /* PHY XS RX local fault */
240 #define MDIO_PMA_LASI_RX_PCSLFLT 0x0008 /* PCS RX local fault */
241 #define MDIO_PMA_LASI_RX_PMALFLT 0x0010 /* PMA/PMD RX local fault */
242 #define MDIO_PMA_LASI_RX_OPTICPOWERFLT 0x0020 /* RX optical power fault */
243 #define MDIO_PMA_LASI_RX_WISLFLT 0x0200 /* WIS local fault */
244
245 /* LASI TX_ALARM control/status registers. */
246 #define MDIO_PMA_LASI_TX_PHYXSLFLT 0x0001 /* PHY XS TX local fault */
247 #define MDIO_PMA_LASI_TX_PCSLFLT 0x0008 /* PCS TX local fault */
248 #define MDIO_PMA_LASI_TX_PMALFLT 0x0010 /* PMA/PMD TX local fault */
249 #define MDIO_PMA_LASI_TX_LASERPOWERFLT 0x0080 /* Laser output power fault */
250 #define MDIO_PMA_LASI_TX_LASERTEMPFLT 0x0100 /* Laser temperature fault */
251 #define MDIO_PMA_LASI_TX_LASERBICURRFLT 0x0200 /* Laser bias current fault */
252
253 /* LASI control/status registers. */
254 #define MDIO_PMA_LASI_LSALARM 0x0001 /* LS_ALARM enable/status */
255 #define MDIO_PMA_LASI_TXALARM 0x0002 /* TX_ALARM enable/status */
256 #define MDIO_PMA_LASI_RXALARM 0x0004 /* RX_ALARM enable/status */
257
258 /* Mapping between MDIO PRTAD/DEVAD and mii_ioctl_data::phy_id */
259
260 #define MDIO_PHY_ID_C45 0x8000
261 #define MDIO_PHY_ID_PRTAD 0x03e0
262 #define MDIO_PHY_ID_DEVAD 0x001f
263 #define MDIO_PHY_ID_C45_MASK \
264 (MDIO_PHY_ID_C45 | MDIO_PHY_ID_PRTAD | MDIO_PHY_ID_DEVAD)
265
266 static inline __u16 mdio_phy_id_c45(int prtad, int devad)
267 {
268 return MDIO_PHY_ID_C45 | (prtad << 5) | devad;
269 }
270
271 static inline bool mdio_phy_id_is_c45(int phy_id)
272 {
273 return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK);
274 }
275
276 static inline __u16 mdio_phy_id_prtad(int phy_id)
277 {
278 return (phy_id & MDIO_PHY_ID_PRTAD) >> 5;
279 }
280
281 static inline __u16 mdio_phy_id_devad(int phy_id)
282 {
283 return phy_id & MDIO_PHY_ID_DEVAD;
284 }
285
286 #define MDIO_SUPPORTS_C22 1
287 #define MDIO_SUPPORTS_C45 2
288
289 #ifdef __KERNEL__
290
291 /**
292 * struct mdio_if_info - Ethernet controller MDIO interface
293 * @prtad: PRTAD of the PHY (%MDIO_PRTAD_NONE if not present/unknown)
294 * @mmds: Mask of MMDs expected to be present in the PHY. This must be
295 * non-zero unless @prtad = %MDIO_PRTAD_NONE.
296 * @mode_support: MDIO modes supported. If %MDIO_SUPPORTS_C22 is set then
297 * MII register access will be passed through with @devad =
298 * %MDIO_DEVAD_NONE. If %MDIO_EMULATE_C22 is set then access to
299 * commonly used clause 22 registers will be translated into
300 * clause 45 registers.
301 * @dev: Net device structure
302 * @mdio_read: Register read function; returns value or negative error code
303 * @mdio_write: Register write function; returns 0 or negative error code
304 */
305 struct mdio_if_info {
306 int prtad;
307 u32 __bitwise mmds;
308 unsigned mode_support;
309
310 struct net_device *dev;
311 int (*mdio_read)(struct net_device *dev, int prtad, int devad,
312 u16 addr);
313 int (*mdio_write)(struct net_device *dev, int prtad, int devad,
314 u16 addr, u16 val);
315 };
316
317 #define MDIO_PRTAD_NONE (-1)
318 #define MDIO_DEVAD_NONE (-1)
319 #define MDIO_EMULATE_C22 4
320
321 struct ethtool_cmd;
322 struct ethtool_pauseparam;
323 extern int mdio45_probe(struct mdio_if_info *mdio, int prtad);
324 extern int mdio_set_flag(const struct mdio_if_info *mdio,
325 int prtad, int devad, u16 addr, int mask,
326 bool sense);
327 extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds);
328 extern int mdio45_nway_restart(const struct mdio_if_info *mdio);
329 extern void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio,
330 struct ethtool_cmd *ecmd,
331 u32 npage_adv, u32 npage_lpa);
332 extern void
333 mdio45_ethtool_spauseparam_an(const struct mdio_if_info *mdio,
334 const struct ethtool_pauseparam *ecmd);
335
336 /**
337 * mdio45_ethtool_gset - get settings for ETHTOOL_GSET
338 * @mdio: MDIO interface
339 * @ecmd: Ethtool request structure
340 *
341 * Since the CSRs for auto-negotiation using next pages are not fully
342 * standardised, this function does not attempt to decode them. Use
343 * mdio45_ethtool_gset_npage() to specify advertisement bits from next
344 * pages.
345 */
346 static inline void mdio45_ethtool_gset(const struct mdio_if_info *mdio,
347 struct ethtool_cmd *ecmd)
348 {
349 mdio45_ethtool_gset_npage(mdio, ecmd, 0, 0);
350 }
351
352 extern int mdio_mii_ioctl(const struct mdio_if_info *mdio,
353 struct mii_ioctl_data *mii_data, int cmd);
354
355 #endif /* __KERNEL__ */
356 #endif /* __LINUX_MDIO_H__ */
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