1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Marvell 10G 88x3310 PHY driver
4 *
5 * Based upon the ID registers, this PHY appears to be a mixture of IPs
6 * from two different companies.
7 *
8 * There appears to be several different data paths through the PHY which
9 * are automatically managed by the PHY. The following has been determined
10 * via observation and experimentation for a setup using single-lane Serdes:
11 *
12 * SGMII PHYXS -- BASE-T PCS -- 10G PMA -- AN -- Copper (for <= 1G)
13 * 10GBASE-KR PHYXS -- BASE-T PCS -- 10G PMA -- AN -- Copper (for 10G)
14 * 10GBASE-KR PHYXS -- BASE-R PCS -- Fiber
15 *
16 * With XAUI, observation shows:
17 *
18 * XAUI PHYXS -- <appropriate PCS as above>
19 *
20 * and no switching of the host interface mode occurs.
21 *
22 * If both the fiber and copper ports are connected, the first to gain
23 * link takes priority and the other port is completely locked out.
24 */
25 #include <linux/bitfield.h>
26 #include <linux/ctype.h>
27 #include <linux/delay.h>
28 #include <linux/hwmon.h>
29 #include <linux/marvell_phy.h>
30 #include <linux/phy.h>
31 #include <linux/sfp.h>
32 #include <linux/netdevice.h>
33
34 #define MV_PHY_ALASKA_NBT_QUIRK_MASK 0xfffffffe
35 #define MV_PHY_ALASKA_NBT_QUIRK_REV (MARVELL_PHY_ID_88X3310 | 0xa)
36
37 #define MV_VERSION(a,b,c,d) ((a) << 24 | (b) << 16 | (c) << 8 | (d))
38
39 enum {
40 MV_PMA_FW_VER0 = 0xc011,
41 MV_PMA_FW_VER1 = 0xc012,
42 MV_PMA_21X0_PORT_CTRL = 0xc04a,
43 MV_PMA_21X0_PORT_CTRL_SWRST = BIT(15),
44 MV_PMA_21X0_PORT_CTRL_MACTYPE_MASK = 0x7,
45 MV_PMA_21X0_PORT_CTRL_MACTYPE_USXGMII = 0x0,
46 MV_PMA_2180_PORT_CTRL_MACTYPE_DXGMII = 0x1,
47 MV_PMA_2180_PORT_CTRL_MACTYPE_QXGMII = 0x2,
48 MV_PMA_21X0_PORT_CTRL_MACTYPE_5GBASER = 0x4,
49 MV_PMA_21X0_PORT_CTRL_MACTYPE_5GBASER_NO_SGMII_AN = 0x5,
50 MV_PMA_21X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH = 0x6,
51 MV_PMA_BOOT = 0xc050,
52 MV_PMA_BOOT_FATAL = BIT(0),
53
54 MV_PCS_BASE_T = 0x0000,
55 MV_PCS_BASE_R = 0x1000,
56 MV_PCS_1000BASEX = 0x2000,
57
58 MV_PCS_CSCR1 = 0x8000,
59 MV_PCS_CSCR1_ED_MASK = 0x0300,
60 MV_PCS_CSCR1_ED_OFF = 0x0000,
61 MV_PCS_CSCR1_ED_RX = 0x0200,
62 MV_PCS_CSCR1_ED_NLP = 0x0300,
63 MV_PCS_CSCR1_MDIX_MASK = 0x0060,
64 MV_PCS_CSCR1_MDIX_MDI = 0x0000,
65 MV_PCS_CSCR1_MDIX_MDIX = 0x0020,
66 MV_PCS_CSCR1_MDIX_AUTO = 0x0060,
67
68 MV_PCS_DSC1 = 0x8003,
69 MV_PCS_DSC1_ENABLE = BIT(9),
70 MV_PCS_DSC1_10GBT = 0x01c0,
71 MV_PCS_DSC1_1GBR = 0x0038,
72 MV_PCS_DSC1_100BTX = 0x0007,
73 MV_PCS_DSC2 = 0x8004,
74 MV_PCS_DSC2_2P5G = 0xf000,
75 MV_PCS_DSC2_5G = 0x0f00,
76
77 MV_PCS_CSSR1 = 0x8008,
78 MV_PCS_CSSR1_SPD1_MASK = 0xc000,
79 MV_PCS_CSSR1_SPD1_SPD2 = 0xc000,
80 MV_PCS_CSSR1_SPD1_1000 = 0x8000,
81 MV_PCS_CSSR1_SPD1_100 = 0x4000,
82 MV_PCS_CSSR1_SPD1_10 = 0x0000,
83 MV_PCS_CSSR1_DUPLEX_FULL= BIT(13),
84 MV_PCS_CSSR1_RESOLVED = BIT(11),
85 MV_PCS_CSSR1_MDIX = BIT(6),
86 MV_PCS_CSSR1_SPD2_MASK = 0x000c,
87 MV_PCS_CSSR1_SPD2_5000 = 0x0008,
88 MV_PCS_CSSR1_SPD2_2500 = 0x0004,
89 MV_PCS_CSSR1_SPD2_10000 = 0x0000,
90
91 /* Temperature read register (88E2110 only) */
92 MV_PCS_TEMP = 0x8042,
93
94 /* Number of ports on the device */
95 MV_PCS_PORT_INFO = 0xd00d,
96 MV_PCS_PORT_INFO_NPORTS_MASK = 0x0380,
97 MV_PCS_PORT_INFO_NPORTS_SHIFT = 7,
98
99 /* SerDes reinitialization 88E21X0 */
100 MV_AN_21X0_SERDES_CTRL2 = 0x800f,
101 MV_AN_21X0_SERDES_CTRL2_AUTO_INIT_DIS = BIT(13),
102 MV_AN_21X0_SERDES_CTRL2_RUN_INIT = BIT(15),
103
104 /* These registers appear at 0x800X and 0xa00X - the 0xa00X control
105 * registers appear to set themselves to the 0x800X when AN is
106 * restarted, but status registers appear readable from either.
107 */
108 MV_AN_CTRL1000 = 0x8000, /* 1000base-T control register */
109 MV_AN_STAT1000 = 0x8001, /* 1000base-T status register */
110
111 /* Vendor2 MMD registers */
112 MV_V2_PORT_CTRL = 0xf001,
113 MV_V2_PORT_CTRL_PWRDOWN = BIT(11),
114 MV_V2_33X0_PORT_CTRL_SWRST = BIT(15),
115 MV_V2_33X0_PORT_CTRL_MACTYPE_MASK = 0x7,
116 MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI = 0x0,
117 MV_V2_3310_PORT_CTRL_MACTYPE_XAUI_RATE_MATCH = 0x1,
118 MV_V2_3340_PORT_CTRL_MACTYPE_RXAUI_NO_SGMII_AN = 0x1,
119 MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI_RATE_MATCH = 0x2,
120 MV_V2_3310_PORT_CTRL_MACTYPE_XAUI = 0x3,
121 MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER = 0x4,
122 MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER_NO_SGMII_AN = 0x5,
123 MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH = 0x6,
124 MV_V2_33X0_PORT_CTRL_MACTYPE_USXGMII = 0x7,
125 MV_V2_PORT_INTR_STS = 0xf040,
126 MV_V2_PORT_INTR_MASK = 0xf043,
127 MV_V2_PORT_INTR_STS_WOL_EN = BIT(8),
128 MV_V2_MAGIC_PKT_WORD0 = 0xf06b,
129 MV_V2_MAGIC_PKT_WORD1 = 0xf06c,
130 MV_V2_MAGIC_PKT_WORD2 = 0xf06d,
131 /* Wake on LAN registers */
132 MV_V2_WOL_CTRL = 0xf06e,
133 MV_V2_WOL_CTRL_CLEAR_STS = BIT(15),
134 MV_V2_WOL_CTRL_MAGIC_PKT_EN = BIT(0),
135 /* Temperature control/read registers (88X3310 only) */
136 MV_V2_TEMP_CTRL = 0xf08a,
137 MV_V2_TEMP_CTRL_MASK = 0xc000,
138 MV_V2_TEMP_CTRL_SAMPLE = 0x0000,
139 MV_V2_TEMP_CTRL_DISABLE = 0xc000,
140 MV_V2_TEMP = 0xf08c,
141 MV_V2_TEMP_UNKNOWN = 0x9600, /* unknown function */
142 };
143
144 struct mv3310_mactype {
145 bool valid;
146 bool fixed_interface;
147 phy_interface_t interface_10g;
148 };
149
150 struct mv3310_chip {
151 bool (*has_downshift)(struct phy_device *phydev);
152 void (*init_supported_interfaces)(unsigned long *mask);
153 int (*get_mactype)(struct phy_device *phydev);
154 int (*set_mactype)(struct phy_device *phydev, int mactype);
155 int (*select_mactype)(unsigned long *interfaces);
156
157 const struct mv3310_mactype *mactypes;
158 size_t n_mactypes;
159
160 #ifdef CONFIG_HWMON
161 int (*hwmon_read_temp_reg)(struct phy_device *phydev);
162 #endif
163 };
164
165 struct mv3310_priv {
166 DECLARE_BITMAP(supported_interfaces, PHY_INTERFACE_MODE_MAX);
167 const struct mv3310_mactype *mactype;
168
169 u32 firmware_ver;
170 bool has_downshift;
171
172 struct device *hwmon_dev;
173 char *hwmon_name;
174 };
175
to_mv3310_chip(struct phy_device * phydev)176 static const struct mv3310_chip *to_mv3310_chip(struct phy_device *phydev)
177 {
178 return phydev->drv->driver_data;
179 }
180
181 #ifdef CONFIG_HWMON
mv3310_hwmon_is_visible(const void * data,enum hwmon_sensor_types type,u32 attr,int channel)182 static umode_t mv3310_hwmon_is_visible(const void *data,
183 enum hwmon_sensor_types type,
184 u32 attr, int channel)
185 {
186 if (type == hwmon_chip && attr == hwmon_chip_update_interval)
187 return 0444;
188 if (type == hwmon_temp && attr == hwmon_temp_input)
189 return 0444;
190 return 0;
191 }
192
mv3310_hwmon_read_temp_reg(struct phy_device * phydev)193 static int mv3310_hwmon_read_temp_reg(struct phy_device *phydev)
194 {
195 return phy_read_mmd(phydev, MDIO_MMD_VEND2, MV_V2_TEMP);
196 }
197
mv2110_hwmon_read_temp_reg(struct phy_device * phydev)198 static int mv2110_hwmon_read_temp_reg(struct phy_device *phydev)
199 {
200 return phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_TEMP);
201 }
202
mv3310_hwmon_read(struct device * dev,enum hwmon_sensor_types type,u32 attr,int channel,long * value)203 static int mv3310_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
204 u32 attr, int channel, long *value)
205 {
206 struct phy_device *phydev = dev_get_drvdata(dev);
207 const struct mv3310_chip *chip = to_mv3310_chip(phydev);
208 int temp;
209
210 if (type == hwmon_chip && attr == hwmon_chip_update_interval) {
211 *value = MSEC_PER_SEC;
212 return 0;
213 }
214
215 if (type == hwmon_temp && attr == hwmon_temp_input) {
216 temp = chip->hwmon_read_temp_reg(phydev);
217 if (temp < 0)
218 return temp;
219
220 *value = ((temp & 0xff) - 75) * 1000;
221
222 return 0;
223 }
224
225 return -EOPNOTSUPP;
226 }
227
228 static const struct hwmon_ops mv3310_hwmon_ops = {
229 .is_visible = mv3310_hwmon_is_visible,
230 .read = mv3310_hwmon_read,
231 };
232
233 static u32 mv3310_hwmon_chip_config[] = {
234 HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL,
235 0,
236 };
237
238 static const struct hwmon_channel_info mv3310_hwmon_chip = {
239 .type = hwmon_chip,
240 .config = mv3310_hwmon_chip_config,
241 };
242
243 static u32 mv3310_hwmon_temp_config[] = {
244 HWMON_T_INPUT,
245 0,
246 };
247
248 static const struct hwmon_channel_info mv3310_hwmon_temp = {
249 .type = hwmon_temp,
250 .config = mv3310_hwmon_temp_config,
251 };
252
253 static const struct hwmon_channel_info * const mv3310_hwmon_info[] = {
254 &mv3310_hwmon_chip,
255 &mv3310_hwmon_temp,
256 NULL,
257 };
258
259 static const struct hwmon_chip_info mv3310_hwmon_chip_info = {
260 .ops = &mv3310_hwmon_ops,
261 .info = mv3310_hwmon_info,
262 };
263
mv3310_hwmon_config(struct phy_device * phydev,bool enable)264 static int mv3310_hwmon_config(struct phy_device *phydev, bool enable)
265 {
266 u16 val;
267 int ret;
268
269 if (phydev->drv->phy_id != MARVELL_PHY_ID_88X3310)
270 return 0;
271
272 ret = phy_write_mmd(phydev, MDIO_MMD_VEND2, MV_V2_TEMP,
273 MV_V2_TEMP_UNKNOWN);
274 if (ret < 0)
275 return ret;
276
277 val = enable ? MV_V2_TEMP_CTRL_SAMPLE : MV_V2_TEMP_CTRL_DISABLE;
278
279 return phy_modify_mmd(phydev, MDIO_MMD_VEND2, MV_V2_TEMP_CTRL,
280 MV_V2_TEMP_CTRL_MASK, val);
281 }
282
mv3310_hwmon_probe(struct phy_device * phydev)283 static int mv3310_hwmon_probe(struct phy_device *phydev)
284 {
285 struct device *dev = &phydev->mdio.dev;
286 struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
287 int i, j, ret;
288
289 priv->hwmon_name = devm_kstrdup(dev, dev_name(dev), GFP_KERNEL);
290 if (!priv->hwmon_name)
291 return -ENODEV;
292
293 for (i = j = 0; priv->hwmon_name[i]; i++) {
294 if (isalnum(priv->hwmon_name[i])) {
295 if (i != j)
296 priv->hwmon_name[j] = priv->hwmon_name[i];
297 j++;
298 }
299 }
300 priv->hwmon_name[j] = '\0';
301
302 ret = mv3310_hwmon_config(phydev, true);
303 if (ret)
304 return ret;
305
306 priv->hwmon_dev = devm_hwmon_device_register_with_info(dev,
307 priv->hwmon_name, phydev,
308 &mv3310_hwmon_chip_info, NULL);
309
310 return PTR_ERR_OR_ZERO(priv->hwmon_dev);
311 }
312 #else
mv3310_hwmon_config(struct phy_device * phydev,bool enable)313 static inline int mv3310_hwmon_config(struct phy_device *phydev, bool enable)
314 {
315 return 0;
316 }
317
mv3310_hwmon_probe(struct phy_device * phydev)318 static int mv3310_hwmon_probe(struct phy_device *phydev)
319 {
320 return 0;
321 }
322 #endif
323
mv3310_power_down(struct phy_device * phydev)324 static int mv3310_power_down(struct phy_device *phydev)
325 {
326 return phy_set_bits_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
327 MV_V2_PORT_CTRL_PWRDOWN);
328 }
329
mv3310_power_up(struct phy_device * phydev)330 static int mv3310_power_up(struct phy_device *phydev)
331 {
332 struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
333 int ret;
334
335 ret = phy_clear_bits_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
336 MV_V2_PORT_CTRL_PWRDOWN);
337
338 /* Sometimes, the power down bit doesn't clear immediately, and
339 * a read of this register causes the bit not to clear. Delay
340 * 100us to allow the PHY to come out of power down mode before
341 * the next access.
342 */
343 udelay(100);
344
345 if (phydev->drv->phy_id != MARVELL_PHY_ID_88X3310 ||
346 priv->firmware_ver < 0x00030000)
347 return ret;
348
349 return phy_set_bits_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
350 MV_V2_33X0_PORT_CTRL_SWRST);
351 }
352
mv3310_reset(struct phy_device * phydev,u32 unit)353 static int mv3310_reset(struct phy_device *phydev, u32 unit)
354 {
355 int val, err;
356
357 err = phy_modify_mmd(phydev, MDIO_MMD_PCS, unit + MDIO_CTRL1,
358 MDIO_CTRL1_RESET, MDIO_CTRL1_RESET);
359 if (err < 0)
360 return err;
361
362 return phy_read_mmd_poll_timeout(phydev, MDIO_MMD_PCS,
363 unit + MDIO_CTRL1, val,
364 !(val & MDIO_CTRL1_RESET),
365 5000, 100000, true);
366 }
367
mv3310_get_downshift(struct phy_device * phydev,u8 * ds)368 static int mv3310_get_downshift(struct phy_device *phydev, u8 *ds)
369 {
370 struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
371 int val;
372
373 if (!priv->has_downshift)
374 return -EOPNOTSUPP;
375
376 val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_DSC1);
377 if (val < 0)
378 return val;
379
380 if (val & MV_PCS_DSC1_ENABLE)
381 /* assume that all fields are the same */
382 *ds = 1 + FIELD_GET(MV_PCS_DSC1_10GBT, (u16)val);
383 else
384 *ds = DOWNSHIFT_DEV_DISABLE;
385
386 return 0;
387 }
388
mv3310_set_downshift(struct phy_device * phydev,u8 ds)389 static int mv3310_set_downshift(struct phy_device *phydev, u8 ds)
390 {
391 struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
392 u16 val;
393 int err;
394
395 if (!priv->has_downshift)
396 return -EOPNOTSUPP;
397
398 if (ds == DOWNSHIFT_DEV_DISABLE)
399 return phy_clear_bits_mmd(phydev, MDIO_MMD_PCS, MV_PCS_DSC1,
400 MV_PCS_DSC1_ENABLE);
401
402 /* DOWNSHIFT_DEV_DEFAULT_COUNT is confusing. It looks like it should
403 * set the default settings for the PHY. However, it is used for
404 * "ethtool --set-phy-tunable ethN downshift on". The intention is
405 * to enable downshift at a default number of retries. The default
406 * settings for 88x3310 are for two retries with downshift disabled.
407 * So let's use two retries with downshift enabled.
408 */
409 if (ds == DOWNSHIFT_DEV_DEFAULT_COUNT)
410 ds = 2;
411
412 if (ds > 8)
413 return -E2BIG;
414
415 ds -= 1;
416 val = FIELD_PREP(MV_PCS_DSC2_2P5G, ds);
417 val |= FIELD_PREP(MV_PCS_DSC2_5G, ds);
418 err = phy_modify_mmd(phydev, MDIO_MMD_PCS, MV_PCS_DSC2,
419 MV_PCS_DSC2_2P5G | MV_PCS_DSC2_5G, val);
420 if (err < 0)
421 return err;
422
423 val = MV_PCS_DSC1_ENABLE;
424 val |= FIELD_PREP(MV_PCS_DSC1_10GBT, ds);
425 val |= FIELD_PREP(MV_PCS_DSC1_1GBR, ds);
426 val |= FIELD_PREP(MV_PCS_DSC1_100BTX, ds);
427
428 return phy_modify_mmd(phydev, MDIO_MMD_PCS, MV_PCS_DSC1,
429 MV_PCS_DSC1_ENABLE | MV_PCS_DSC1_10GBT |
430 MV_PCS_DSC1_1GBR | MV_PCS_DSC1_100BTX, val);
431 }
432
mv3310_get_edpd(struct phy_device * phydev,u16 * edpd)433 static int mv3310_get_edpd(struct phy_device *phydev, u16 *edpd)
434 {
435 int val;
436
437 val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_CSCR1);
438 if (val < 0)
439 return val;
440
441 switch (val & MV_PCS_CSCR1_ED_MASK) {
442 case MV_PCS_CSCR1_ED_NLP:
443 *edpd = 1000;
444 break;
445 case MV_PCS_CSCR1_ED_RX:
446 *edpd = ETHTOOL_PHY_EDPD_NO_TX;
447 break;
448 default:
449 *edpd = ETHTOOL_PHY_EDPD_DISABLE;
450 break;
451 }
452 return 0;
453 }
454
mv3310_set_edpd(struct phy_device * phydev,u16 edpd)455 static int mv3310_set_edpd(struct phy_device *phydev, u16 edpd)
456 {
457 u16 val;
458 int err;
459
460 switch (edpd) {
461 case 1000:
462 case ETHTOOL_PHY_EDPD_DFLT_TX_MSECS:
463 val = MV_PCS_CSCR1_ED_NLP;
464 break;
465
466 case ETHTOOL_PHY_EDPD_NO_TX:
467 val = MV_PCS_CSCR1_ED_RX;
468 break;
469
470 case ETHTOOL_PHY_EDPD_DISABLE:
471 val = MV_PCS_CSCR1_ED_OFF;
472 break;
473
474 default:
475 return -EINVAL;
476 }
477
478 err = phy_modify_mmd_changed(phydev, MDIO_MMD_PCS, MV_PCS_CSCR1,
479 MV_PCS_CSCR1_ED_MASK, val);
480 if (err > 0)
481 err = mv3310_reset(phydev, MV_PCS_BASE_T);
482
483 return err;
484 }
485
mv3310_sfp_insert(void * upstream,const struct sfp_eeprom_id * id)486 static int mv3310_sfp_insert(void *upstream, const struct sfp_eeprom_id *id)
487 {
488 struct phy_device *phydev = upstream;
489 __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
490 DECLARE_PHY_INTERFACE_MASK(interfaces);
491 phy_interface_t iface;
492
493 sfp_parse_support(phydev->sfp_bus, id, support, interfaces);
494 iface = sfp_select_interface(phydev->sfp_bus, support);
495
496 if (iface != PHY_INTERFACE_MODE_10GBASER) {
497 dev_err(&phydev->mdio.dev, "incompatible SFP module inserted\n");
498 return -EINVAL;
499 }
500 return 0;
501 }
502
503 static const struct sfp_upstream_ops mv3310_sfp_ops = {
504 .attach = phy_sfp_attach,
505 .detach = phy_sfp_detach,
506 .connect_phy = phy_sfp_connect_phy,
507 .disconnect_phy = phy_sfp_disconnect_phy,
508 .module_insert = mv3310_sfp_insert,
509 };
510
mv3310_probe(struct phy_device * phydev)511 static int mv3310_probe(struct phy_device *phydev)
512 {
513 const struct mv3310_chip *chip = to_mv3310_chip(phydev);
514 struct mv3310_priv *priv;
515 u32 mmd_mask = MDIO_DEVS_PMAPMD | MDIO_DEVS_AN;
516 int ret;
517
518 if (!phydev->is_c45 ||
519 (phydev->c45_ids.devices_in_package & mmd_mask) != mmd_mask)
520 return -ENODEV;
521
522 ret = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_BOOT);
523 if (ret < 0)
524 return ret;
525
526 if (ret & MV_PMA_BOOT_FATAL) {
527 dev_warn(&phydev->mdio.dev,
528 "PHY failed to boot firmware, status=%04x\n", ret);
529 return -ENODEV;
530 }
531
532 priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
533 if (!priv)
534 return -ENOMEM;
535
536 dev_set_drvdata(&phydev->mdio.dev, priv);
537
538 ret = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_FW_VER0);
539 if (ret < 0)
540 return ret;
541
542 priv->firmware_ver = ret << 16;
543
544 ret = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_FW_VER1);
545 if (ret < 0)
546 return ret;
547
548 priv->firmware_ver |= ret;
549
550 phydev_info(phydev, "Firmware version %u.%u.%u.%u\n",
551 priv->firmware_ver >> 24, (priv->firmware_ver >> 16) & 255,
552 (priv->firmware_ver >> 8) & 255, priv->firmware_ver & 255);
553
554 if (chip->has_downshift)
555 priv->has_downshift = chip->has_downshift(phydev);
556
557 /* Powering down the port when not in use saves about 600mW */
558 ret = mv3310_power_down(phydev);
559 if (ret)
560 return ret;
561
562 ret = mv3310_hwmon_probe(phydev);
563 if (ret)
564 return ret;
565
566 chip->init_supported_interfaces(priv->supported_interfaces);
567
568 return phy_sfp_probe(phydev, &mv3310_sfp_ops);
569 }
570
mv3310_remove(struct phy_device * phydev)571 static void mv3310_remove(struct phy_device *phydev)
572 {
573 mv3310_hwmon_config(phydev, false);
574 }
575
mv3310_suspend(struct phy_device * phydev)576 static int mv3310_suspend(struct phy_device *phydev)
577 {
578 return mv3310_power_down(phydev);
579 }
580
mv3310_resume(struct phy_device * phydev)581 static int mv3310_resume(struct phy_device *phydev)
582 {
583 int ret;
584
585 ret = mv3310_power_up(phydev);
586 if (ret)
587 return ret;
588
589 return mv3310_hwmon_config(phydev, true);
590 }
591
592 /* Some PHYs in the Alaska family such as the 88X3310 and the 88E2010
593 * don't set bit 14 in PMA Extended Abilities (1.11), although they do
594 * support 2.5GBASET and 5GBASET. For these models, we can still read their
595 * 2.5G/5G extended abilities register (1.21). We detect these models based on
596 * the PMA device identifier, with a mask matching models known to have this
597 * issue
598 */
mv3310_has_pma_ngbaset_quirk(struct phy_device * phydev)599 static bool mv3310_has_pma_ngbaset_quirk(struct phy_device *phydev)
600 {
601 if (!(phydev->c45_ids.devices_in_package & MDIO_DEVS_PMAPMD))
602 return false;
603
604 /* Only some revisions of the 88X3310 family PMA seem to be impacted */
605 return (phydev->c45_ids.device_ids[MDIO_MMD_PMAPMD] &
606 MV_PHY_ALASKA_NBT_QUIRK_MASK) == MV_PHY_ALASKA_NBT_QUIRK_REV;
607 }
608
mv2110_get_mactype(struct phy_device * phydev)609 static int mv2110_get_mactype(struct phy_device *phydev)
610 {
611 int mactype;
612
613 mactype = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_21X0_PORT_CTRL);
614 if (mactype < 0)
615 return mactype;
616
617 return mactype & MV_PMA_21X0_PORT_CTRL_MACTYPE_MASK;
618 }
619
mv2110_set_mactype(struct phy_device * phydev,int mactype)620 static int mv2110_set_mactype(struct phy_device *phydev, int mactype)
621 {
622 int err, val;
623
624 mactype &= MV_PMA_21X0_PORT_CTRL_MACTYPE_MASK;
625 err = phy_modify_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_21X0_PORT_CTRL,
626 MV_PMA_21X0_PORT_CTRL_SWRST |
627 MV_PMA_21X0_PORT_CTRL_MACTYPE_MASK,
628 MV_PMA_21X0_PORT_CTRL_SWRST | mactype);
629 if (err)
630 return err;
631
632 err = phy_set_bits_mmd(phydev, MDIO_MMD_AN, MV_AN_21X0_SERDES_CTRL2,
633 MV_AN_21X0_SERDES_CTRL2_AUTO_INIT_DIS |
634 MV_AN_21X0_SERDES_CTRL2_RUN_INIT);
635 if (err)
636 return err;
637
638 err = phy_read_mmd_poll_timeout(phydev, MDIO_MMD_AN,
639 MV_AN_21X0_SERDES_CTRL2, val,
640 !(val &
641 MV_AN_21X0_SERDES_CTRL2_RUN_INIT),
642 5000, 100000, true);
643 if (err)
644 return err;
645
646 return phy_clear_bits_mmd(phydev, MDIO_MMD_AN, MV_AN_21X0_SERDES_CTRL2,
647 MV_AN_21X0_SERDES_CTRL2_AUTO_INIT_DIS);
648 }
649
mv2110_select_mactype(unsigned long * interfaces)650 static int mv2110_select_mactype(unsigned long *interfaces)
651 {
652 if (test_bit(PHY_INTERFACE_MODE_USXGMII, interfaces))
653 return MV_PMA_21X0_PORT_CTRL_MACTYPE_USXGMII;
654 else if (test_bit(PHY_INTERFACE_MODE_SGMII, interfaces) &&
655 !test_bit(PHY_INTERFACE_MODE_10GBASER, interfaces))
656 return MV_PMA_21X0_PORT_CTRL_MACTYPE_5GBASER;
657 else if (test_bit(PHY_INTERFACE_MODE_10GBASER, interfaces))
658 return MV_PMA_21X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH;
659 else
660 return -1;
661 }
662
mv3310_get_mactype(struct phy_device * phydev)663 static int mv3310_get_mactype(struct phy_device *phydev)
664 {
665 int mactype;
666
667 mactype = phy_read_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL);
668 if (mactype < 0)
669 return mactype;
670
671 return mactype & MV_V2_33X0_PORT_CTRL_MACTYPE_MASK;
672 }
673
mv3310_set_mactype(struct phy_device * phydev,int mactype)674 static int mv3310_set_mactype(struct phy_device *phydev, int mactype)
675 {
676 int ret;
677
678 mactype &= MV_V2_33X0_PORT_CTRL_MACTYPE_MASK;
679 ret = phy_modify_mmd_changed(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
680 MV_V2_33X0_PORT_CTRL_MACTYPE_MASK,
681 mactype);
682 if (ret <= 0)
683 return ret;
684
685 return phy_set_bits_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
686 MV_V2_33X0_PORT_CTRL_SWRST);
687 }
688
mv3310_select_mactype(unsigned long * interfaces)689 static int mv3310_select_mactype(unsigned long *interfaces)
690 {
691 if (test_bit(PHY_INTERFACE_MODE_USXGMII, interfaces))
692 return MV_V2_33X0_PORT_CTRL_MACTYPE_USXGMII;
693 else if (test_bit(PHY_INTERFACE_MODE_SGMII, interfaces) &&
694 test_bit(PHY_INTERFACE_MODE_10GBASER, interfaces))
695 return MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER;
696 else if (test_bit(PHY_INTERFACE_MODE_SGMII, interfaces) &&
697 test_bit(PHY_INTERFACE_MODE_RXAUI, interfaces))
698 return MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI;
699 else if (test_bit(PHY_INTERFACE_MODE_SGMII, interfaces) &&
700 test_bit(PHY_INTERFACE_MODE_XAUI, interfaces))
701 return MV_V2_3310_PORT_CTRL_MACTYPE_XAUI;
702 else if (test_bit(PHY_INTERFACE_MODE_10GBASER, interfaces))
703 return MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH;
704 else if (test_bit(PHY_INTERFACE_MODE_RXAUI, interfaces))
705 return MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI_RATE_MATCH;
706 else if (test_bit(PHY_INTERFACE_MODE_XAUI, interfaces))
707 return MV_V2_3310_PORT_CTRL_MACTYPE_XAUI_RATE_MATCH;
708 else if (test_bit(PHY_INTERFACE_MODE_SGMII, interfaces))
709 return MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER;
710 else
711 return -1;
712 }
713
714 static const struct mv3310_mactype mv2110_mactypes[] = {
715 [MV_PMA_21X0_PORT_CTRL_MACTYPE_USXGMII] = {
716 .valid = true,
717 .fixed_interface = true,
718 .interface_10g = PHY_INTERFACE_MODE_USXGMII,
719 },
720 [MV_PMA_21X0_PORT_CTRL_MACTYPE_5GBASER] = {
721 .valid = true,
722 .interface_10g = PHY_INTERFACE_MODE_NA,
723 },
724 [MV_PMA_21X0_PORT_CTRL_MACTYPE_5GBASER_NO_SGMII_AN] = {
725 .valid = true,
726 .interface_10g = PHY_INTERFACE_MODE_NA,
727 },
728 [MV_PMA_21X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH] = {
729 .valid = true,
730 .fixed_interface = true,
731 .interface_10g = PHY_INTERFACE_MODE_10GBASER,
732 },
733 };
734
735 static const struct mv3310_mactype mv3310_mactypes[] = {
736 [MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI] = {
737 .valid = true,
738 .interface_10g = PHY_INTERFACE_MODE_RXAUI,
739 },
740 [MV_V2_3310_PORT_CTRL_MACTYPE_XAUI_RATE_MATCH] = {
741 .valid = true,
742 .fixed_interface = true,
743 .interface_10g = PHY_INTERFACE_MODE_XAUI,
744 },
745 [MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI_RATE_MATCH] = {
746 .valid = true,
747 .fixed_interface = true,
748 .interface_10g = PHY_INTERFACE_MODE_RXAUI,
749 },
750 [MV_V2_3310_PORT_CTRL_MACTYPE_XAUI] = {
751 .valid = true,
752 .interface_10g = PHY_INTERFACE_MODE_XAUI,
753 },
754 [MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER] = {
755 .valid = true,
756 .interface_10g = PHY_INTERFACE_MODE_10GBASER,
757 },
758 [MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER_NO_SGMII_AN] = {
759 .valid = true,
760 .interface_10g = PHY_INTERFACE_MODE_10GBASER,
761 },
762 [MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH] = {
763 .valid = true,
764 .fixed_interface = true,
765 .interface_10g = PHY_INTERFACE_MODE_10GBASER,
766 },
767 [MV_V2_33X0_PORT_CTRL_MACTYPE_USXGMII] = {
768 .valid = true,
769 .fixed_interface = true,
770 .interface_10g = PHY_INTERFACE_MODE_USXGMII,
771 },
772 };
773
774 static const struct mv3310_mactype mv3340_mactypes[] = {
775 [MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI] = {
776 .valid = true,
777 .interface_10g = PHY_INTERFACE_MODE_RXAUI,
778 },
779 [MV_V2_3340_PORT_CTRL_MACTYPE_RXAUI_NO_SGMII_AN] = {
780 .valid = true,
781 .interface_10g = PHY_INTERFACE_MODE_RXAUI,
782 },
783 [MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI_RATE_MATCH] = {
784 .valid = true,
785 .fixed_interface = true,
786 .interface_10g = PHY_INTERFACE_MODE_RXAUI,
787 },
788 [MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER] = {
789 .valid = true,
790 .interface_10g = PHY_INTERFACE_MODE_10GBASER,
791 },
792 [MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER_NO_SGMII_AN] = {
793 .valid = true,
794 .interface_10g = PHY_INTERFACE_MODE_10GBASER,
795 },
796 [MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH] = {
797 .valid = true,
798 .fixed_interface = true,
799 .interface_10g = PHY_INTERFACE_MODE_10GBASER,
800 },
801 [MV_V2_33X0_PORT_CTRL_MACTYPE_USXGMII] = {
802 .valid = true,
803 .fixed_interface = true,
804 .interface_10g = PHY_INTERFACE_MODE_USXGMII,
805 },
806 };
807
mv3310_fill_possible_interfaces(struct phy_device * phydev)808 static void mv3310_fill_possible_interfaces(struct phy_device *phydev)
809 {
810 struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
811 unsigned long *possible = phydev->possible_interfaces;
812 const struct mv3310_mactype *mactype = priv->mactype;
813
814 if (mactype->interface_10g != PHY_INTERFACE_MODE_NA)
815 __set_bit(priv->mactype->interface_10g, possible);
816
817 if (!mactype->fixed_interface) {
818 __set_bit(PHY_INTERFACE_MODE_5GBASER, possible);
819 __set_bit(PHY_INTERFACE_MODE_2500BASEX, possible);
820 __set_bit(PHY_INTERFACE_MODE_SGMII, possible);
821 }
822 }
823
mv3310_config_init(struct phy_device * phydev)824 static int mv3310_config_init(struct phy_device *phydev)
825 {
826 struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
827 const struct mv3310_chip *chip = to_mv3310_chip(phydev);
828 int err, mactype;
829
830 /* Check that the PHY interface type is compatible */
831 if (!test_bit(phydev->interface, priv->supported_interfaces))
832 return -ENODEV;
833
834 phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
835
836 /* Power up so reset works */
837 err = mv3310_power_up(phydev);
838 if (err)
839 return err;
840
841 /* If host provided host supported interface modes, try to select the
842 * best one
843 */
844 if (!phy_interface_empty(phydev->host_interfaces)) {
845 mactype = chip->select_mactype(phydev->host_interfaces);
846 if (mactype >= 0) {
847 phydev_info(phydev, "Changing MACTYPE to %i\n",
848 mactype);
849 err = chip->set_mactype(phydev, mactype);
850 if (err)
851 return err;
852 }
853 }
854
855 mactype = chip->get_mactype(phydev);
856 if (mactype < 0)
857 return mactype;
858
859 if (mactype >= chip->n_mactypes || !chip->mactypes[mactype].valid) {
860 phydev_err(phydev, "MACTYPE configuration invalid\n");
861 return -EINVAL;
862 }
863
864 priv->mactype = &chip->mactypes[mactype];
865
866 mv3310_fill_possible_interfaces(phydev);
867
868 /* Enable EDPD mode - saving 600mW */
869 err = mv3310_set_edpd(phydev, ETHTOOL_PHY_EDPD_DFLT_TX_MSECS);
870 if (err)
871 return err;
872
873 /* Allow downshift */
874 err = mv3310_set_downshift(phydev, DOWNSHIFT_DEV_DEFAULT_COUNT);
875 if (err && err != -EOPNOTSUPP)
876 return err;
877
878 return 0;
879 }
880
mv3310_get_features(struct phy_device * phydev)881 static int mv3310_get_features(struct phy_device *phydev)
882 {
883 int ret, val;
884
885 ret = genphy_c45_pma_read_abilities(phydev);
886 if (ret)
887 return ret;
888
889 if (mv3310_has_pma_ngbaset_quirk(phydev)) {
890 val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD,
891 MDIO_PMA_NG_EXTABLE);
892 if (val < 0)
893 return val;
894
895 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
896 phydev->supported,
897 val & MDIO_PMA_NG_EXTABLE_2_5GBT);
898
899 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
900 phydev->supported,
901 val & MDIO_PMA_NG_EXTABLE_5GBT);
902 }
903
904 return 0;
905 }
906
mv3310_config_mdix(struct phy_device * phydev)907 static int mv3310_config_mdix(struct phy_device *phydev)
908 {
909 u16 val;
910 int err;
911
912 switch (phydev->mdix_ctrl) {
913 case ETH_TP_MDI_AUTO:
914 val = MV_PCS_CSCR1_MDIX_AUTO;
915 break;
916 case ETH_TP_MDI_X:
917 val = MV_PCS_CSCR1_MDIX_MDIX;
918 break;
919 case ETH_TP_MDI:
920 val = MV_PCS_CSCR1_MDIX_MDI;
921 break;
922 default:
923 return -EINVAL;
924 }
925
926 err = phy_modify_mmd_changed(phydev, MDIO_MMD_PCS, MV_PCS_CSCR1,
927 MV_PCS_CSCR1_MDIX_MASK, val);
928 if (err > 0)
929 err = mv3310_reset(phydev, MV_PCS_BASE_T);
930
931 return err;
932 }
933
mv3310_config_aneg(struct phy_device * phydev)934 static int mv3310_config_aneg(struct phy_device *phydev)
935 {
936 bool changed = false;
937 u16 reg;
938 int ret;
939
940 ret = mv3310_config_mdix(phydev);
941 if (ret < 0)
942 return ret;
943
944 if (phydev->autoneg == AUTONEG_DISABLE)
945 return genphy_c45_pma_setup_forced(phydev);
946
947 ret = genphy_c45_an_config_aneg(phydev);
948 if (ret < 0)
949 return ret;
950 if (ret > 0)
951 changed = true;
952
953 /* Clause 45 has no standardized support for 1000BaseT, therefore
954 * use vendor registers for this mode.
955 */
956 reg = linkmode_adv_to_mii_ctrl1000_t(phydev->advertising);
957 ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MV_AN_CTRL1000,
958 ADVERTISE_1000FULL | ADVERTISE_1000HALF, reg);
959 if (ret < 0)
960 return ret;
961 if (ret > 0)
962 changed = true;
963
964 return genphy_c45_check_and_restart_aneg(phydev, changed);
965 }
966
mv3310_aneg_done(struct phy_device * phydev)967 static int mv3310_aneg_done(struct phy_device *phydev)
968 {
969 int val;
970
971 val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_BASE_R + MDIO_STAT1);
972 if (val < 0)
973 return val;
974
975 if (val & MDIO_STAT1_LSTATUS)
976 return 1;
977
978 return genphy_c45_aneg_done(phydev);
979 }
980
mv3310_update_interface(struct phy_device * phydev)981 static void mv3310_update_interface(struct phy_device *phydev)
982 {
983 struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
984
985 if (!phydev->link)
986 return;
987
988 /* In all of the "* with Rate Matching" modes the PHY interface is fixed
989 * at 10Gb. The PHY adapts the rate to actual wire speed with help of
990 * internal 16KB buffer.
991 *
992 * In USXGMII mode the PHY interface mode is also fixed.
993 */
994 if (priv->mactype->fixed_interface) {
995 phydev->interface = priv->mactype->interface_10g;
996 return;
997 }
998
999 /* The PHY automatically switches its serdes interface (and active PHYXS
1000 * instance) between Cisco SGMII, 2500BaseX, 5GBase-R and 10GBase-R /
1001 * xaui / rxaui modes according to the speed.
1002 * Florian suggests setting phydev->interface to communicate this to the
1003 * MAC. Only do this if we are already in one of the above modes.
1004 */
1005 switch (phydev->speed) {
1006 case SPEED_10000:
1007 phydev->interface = priv->mactype->interface_10g;
1008 break;
1009 case SPEED_5000:
1010 phydev->interface = PHY_INTERFACE_MODE_5GBASER;
1011 break;
1012 case SPEED_2500:
1013 phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
1014 break;
1015 case SPEED_1000:
1016 case SPEED_100:
1017 case SPEED_10:
1018 phydev->interface = PHY_INTERFACE_MODE_SGMII;
1019 break;
1020 default:
1021 break;
1022 }
1023 }
1024
1025 /* 10GBASE-ER,LR,LRM,SR do not support autonegotiation. */
mv3310_read_status_10gbaser(struct phy_device * phydev)1026 static int mv3310_read_status_10gbaser(struct phy_device *phydev)
1027 {
1028 phydev->link = 1;
1029 phydev->speed = SPEED_10000;
1030 phydev->duplex = DUPLEX_FULL;
1031 phydev->port = PORT_FIBRE;
1032
1033 return 0;
1034 }
1035
mv3310_read_status_copper(struct phy_device * phydev)1036 static int mv3310_read_status_copper(struct phy_device *phydev)
1037 {
1038 int cssr1, speed, val;
1039
1040 val = genphy_c45_read_link(phydev);
1041 if (val < 0)
1042 return val;
1043
1044 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
1045 if (val < 0)
1046 return val;
1047
1048 cssr1 = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_CSSR1);
1049 if (cssr1 < 0)
1050 return cssr1;
1051
1052 /* If the link settings are not resolved, mark the link down */
1053 if (!(cssr1 & MV_PCS_CSSR1_RESOLVED)) {
1054 phydev->link = 0;
1055 return 0;
1056 }
1057
1058 /* Read the copper link settings */
1059 speed = cssr1 & MV_PCS_CSSR1_SPD1_MASK;
1060 if (speed == MV_PCS_CSSR1_SPD1_SPD2)
1061 speed |= cssr1 & MV_PCS_CSSR1_SPD2_MASK;
1062
1063 switch (speed) {
1064 case MV_PCS_CSSR1_SPD1_SPD2 | MV_PCS_CSSR1_SPD2_10000:
1065 phydev->speed = SPEED_10000;
1066 break;
1067
1068 case MV_PCS_CSSR1_SPD1_SPD2 | MV_PCS_CSSR1_SPD2_5000:
1069 phydev->speed = SPEED_5000;
1070 break;
1071
1072 case MV_PCS_CSSR1_SPD1_SPD2 | MV_PCS_CSSR1_SPD2_2500:
1073 phydev->speed = SPEED_2500;
1074 break;
1075
1076 case MV_PCS_CSSR1_SPD1_1000:
1077 phydev->speed = SPEED_1000;
1078 break;
1079
1080 case MV_PCS_CSSR1_SPD1_100:
1081 phydev->speed = SPEED_100;
1082 break;
1083
1084 case MV_PCS_CSSR1_SPD1_10:
1085 phydev->speed = SPEED_10;
1086 break;
1087 }
1088
1089 phydev->duplex = cssr1 & MV_PCS_CSSR1_DUPLEX_FULL ?
1090 DUPLEX_FULL : DUPLEX_HALF;
1091 phydev->port = PORT_TP;
1092 phydev->mdix = cssr1 & MV_PCS_CSSR1_MDIX ?
1093 ETH_TP_MDI_X : ETH_TP_MDI;
1094
1095 if (val & MDIO_AN_STAT1_COMPLETE) {
1096 val = genphy_c45_read_lpa(phydev);
1097 if (val < 0)
1098 return val;
1099
1100 /* Read the link partner's 1G advertisement */
1101 val = phy_read_mmd(phydev, MDIO_MMD_AN, MV_AN_STAT1000);
1102 if (val < 0)
1103 return val;
1104
1105 mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising, val);
1106
1107 /* Update the pause status */
1108 phy_resolve_aneg_pause(phydev);
1109 }
1110
1111 return 0;
1112 }
1113
mv3310_read_status(struct phy_device * phydev)1114 static int mv3310_read_status(struct phy_device *phydev)
1115 {
1116 int err, val;
1117
1118 phydev->speed = SPEED_UNKNOWN;
1119 phydev->duplex = DUPLEX_UNKNOWN;
1120 linkmode_zero(phydev->lp_advertising);
1121 phydev->link = 0;
1122 phydev->pause = 0;
1123 phydev->asym_pause = 0;
1124 phydev->mdix = ETH_TP_MDI_INVALID;
1125
1126 val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_BASE_R + MDIO_STAT1);
1127 if (val < 0)
1128 return val;
1129
1130 if (val & MDIO_STAT1_LSTATUS)
1131 err = mv3310_read_status_10gbaser(phydev);
1132 else
1133 err = mv3310_read_status_copper(phydev);
1134 if (err < 0)
1135 return err;
1136
1137 if (phydev->link)
1138 mv3310_update_interface(phydev);
1139
1140 return 0;
1141 }
1142
mv3310_get_tunable(struct phy_device * phydev,struct ethtool_tunable * tuna,void * data)1143 static int mv3310_get_tunable(struct phy_device *phydev,
1144 struct ethtool_tunable *tuna, void *data)
1145 {
1146 switch (tuna->id) {
1147 case ETHTOOL_PHY_DOWNSHIFT:
1148 return mv3310_get_downshift(phydev, data);
1149 case ETHTOOL_PHY_EDPD:
1150 return mv3310_get_edpd(phydev, data);
1151 default:
1152 return -EOPNOTSUPP;
1153 }
1154 }
1155
mv3310_set_tunable(struct phy_device * phydev,struct ethtool_tunable * tuna,const void * data)1156 static int mv3310_set_tunable(struct phy_device *phydev,
1157 struct ethtool_tunable *tuna, const void *data)
1158 {
1159 switch (tuna->id) {
1160 case ETHTOOL_PHY_DOWNSHIFT:
1161 return mv3310_set_downshift(phydev, *(u8 *)data);
1162 case ETHTOOL_PHY_EDPD:
1163 return mv3310_set_edpd(phydev, *(u16 *)data);
1164 default:
1165 return -EOPNOTSUPP;
1166 }
1167 }
1168
mv3310_has_downshift(struct phy_device * phydev)1169 static bool mv3310_has_downshift(struct phy_device *phydev)
1170 {
1171 struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
1172
1173 /* Fails to downshift with firmware older than v0.3.5.0 */
1174 return priv->firmware_ver >= MV_VERSION(0,3,5,0);
1175 }
1176
mv3310_init_supported_interfaces(unsigned long * mask)1177 static void mv3310_init_supported_interfaces(unsigned long *mask)
1178 {
1179 __set_bit(PHY_INTERFACE_MODE_SGMII, mask);
1180 __set_bit(PHY_INTERFACE_MODE_2500BASEX, mask);
1181 __set_bit(PHY_INTERFACE_MODE_5GBASER, mask);
1182 __set_bit(PHY_INTERFACE_MODE_XAUI, mask);
1183 __set_bit(PHY_INTERFACE_MODE_RXAUI, mask);
1184 __set_bit(PHY_INTERFACE_MODE_10GBASER, mask);
1185 __set_bit(PHY_INTERFACE_MODE_USXGMII, mask);
1186 }
1187
mv3340_init_supported_interfaces(unsigned long * mask)1188 static void mv3340_init_supported_interfaces(unsigned long *mask)
1189 {
1190 __set_bit(PHY_INTERFACE_MODE_SGMII, mask);
1191 __set_bit(PHY_INTERFACE_MODE_2500BASEX, mask);
1192 __set_bit(PHY_INTERFACE_MODE_5GBASER, mask);
1193 __set_bit(PHY_INTERFACE_MODE_RXAUI, mask);
1194 __set_bit(PHY_INTERFACE_MODE_10GBASER, mask);
1195 __set_bit(PHY_INTERFACE_MODE_USXGMII, mask);
1196 }
1197
mv2110_init_supported_interfaces(unsigned long * mask)1198 static void mv2110_init_supported_interfaces(unsigned long *mask)
1199 {
1200 __set_bit(PHY_INTERFACE_MODE_SGMII, mask);
1201 __set_bit(PHY_INTERFACE_MODE_2500BASEX, mask);
1202 __set_bit(PHY_INTERFACE_MODE_5GBASER, mask);
1203 __set_bit(PHY_INTERFACE_MODE_10GBASER, mask);
1204 __set_bit(PHY_INTERFACE_MODE_USXGMII, mask);
1205 }
1206
mv2111_init_supported_interfaces(unsigned long * mask)1207 static void mv2111_init_supported_interfaces(unsigned long *mask)
1208 {
1209 __set_bit(PHY_INTERFACE_MODE_SGMII, mask);
1210 __set_bit(PHY_INTERFACE_MODE_2500BASEX, mask);
1211 __set_bit(PHY_INTERFACE_MODE_10GBASER, mask);
1212 __set_bit(PHY_INTERFACE_MODE_USXGMII, mask);
1213 }
1214
1215 static const struct mv3310_chip mv3310_type = {
1216 .has_downshift = mv3310_has_downshift,
1217 .init_supported_interfaces = mv3310_init_supported_interfaces,
1218 .get_mactype = mv3310_get_mactype,
1219 .set_mactype = mv3310_set_mactype,
1220 .select_mactype = mv3310_select_mactype,
1221
1222 .mactypes = mv3310_mactypes,
1223 .n_mactypes = ARRAY_SIZE(mv3310_mactypes),
1224
1225 #ifdef CONFIG_HWMON
1226 .hwmon_read_temp_reg = mv3310_hwmon_read_temp_reg,
1227 #endif
1228 };
1229
1230 static const struct mv3310_chip mv3340_type = {
1231 .has_downshift = mv3310_has_downshift,
1232 .init_supported_interfaces = mv3340_init_supported_interfaces,
1233 .get_mactype = mv3310_get_mactype,
1234 .set_mactype = mv3310_set_mactype,
1235 .select_mactype = mv3310_select_mactype,
1236
1237 .mactypes = mv3340_mactypes,
1238 .n_mactypes = ARRAY_SIZE(mv3340_mactypes),
1239
1240 #ifdef CONFIG_HWMON
1241 .hwmon_read_temp_reg = mv3310_hwmon_read_temp_reg,
1242 #endif
1243 };
1244
1245 static const struct mv3310_chip mv2110_type = {
1246 .init_supported_interfaces = mv2110_init_supported_interfaces,
1247 .get_mactype = mv2110_get_mactype,
1248 .set_mactype = mv2110_set_mactype,
1249 .select_mactype = mv2110_select_mactype,
1250
1251 .mactypes = mv2110_mactypes,
1252 .n_mactypes = ARRAY_SIZE(mv2110_mactypes),
1253
1254 #ifdef CONFIG_HWMON
1255 .hwmon_read_temp_reg = mv2110_hwmon_read_temp_reg,
1256 #endif
1257 };
1258
1259 static const struct mv3310_chip mv2111_type = {
1260 .init_supported_interfaces = mv2111_init_supported_interfaces,
1261 .get_mactype = mv2110_get_mactype,
1262 .set_mactype = mv2110_set_mactype,
1263 .select_mactype = mv2110_select_mactype,
1264
1265 .mactypes = mv2110_mactypes,
1266 .n_mactypes = ARRAY_SIZE(mv2110_mactypes),
1267
1268 #ifdef CONFIG_HWMON
1269 .hwmon_read_temp_reg = mv2110_hwmon_read_temp_reg,
1270 #endif
1271 };
1272
mv3310_get_number_of_ports(struct phy_device * phydev)1273 static int mv3310_get_number_of_ports(struct phy_device *phydev)
1274 {
1275 int ret;
1276
1277 ret = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_PORT_INFO);
1278 if (ret < 0)
1279 return ret;
1280
1281 ret &= MV_PCS_PORT_INFO_NPORTS_MASK;
1282 ret >>= MV_PCS_PORT_INFO_NPORTS_SHIFT;
1283
1284 return ret + 1;
1285 }
1286
mv3310_match_phy_device(struct phy_device * phydev)1287 static int mv3310_match_phy_device(struct phy_device *phydev)
1288 {
1289 if ((phydev->c45_ids.device_ids[MDIO_MMD_PMAPMD] &
1290 MARVELL_PHY_ID_MASK) != MARVELL_PHY_ID_88X3310)
1291 return 0;
1292
1293 return mv3310_get_number_of_ports(phydev) == 1;
1294 }
1295
mv3340_match_phy_device(struct phy_device * phydev)1296 static int mv3340_match_phy_device(struct phy_device *phydev)
1297 {
1298 if ((phydev->c45_ids.device_ids[MDIO_MMD_PMAPMD] &
1299 MARVELL_PHY_ID_MASK) != MARVELL_PHY_ID_88X3310)
1300 return 0;
1301
1302 return mv3310_get_number_of_ports(phydev) == 4;
1303 }
1304
mv211x_match_phy_device(struct phy_device * phydev,bool has_5g)1305 static int mv211x_match_phy_device(struct phy_device *phydev, bool has_5g)
1306 {
1307 int val;
1308
1309 if ((phydev->c45_ids.device_ids[MDIO_MMD_PMAPMD] &
1310 MARVELL_PHY_ID_MASK) != MARVELL_PHY_ID_88E2110)
1311 return 0;
1312
1313 val = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_SPEED);
1314 if (val < 0)
1315 return val;
1316
1317 return !!(val & MDIO_PCS_SPEED_5G) == has_5g;
1318 }
1319
mv2110_match_phy_device(struct phy_device * phydev)1320 static int mv2110_match_phy_device(struct phy_device *phydev)
1321 {
1322 return mv211x_match_phy_device(phydev, true);
1323 }
1324
mv2111_match_phy_device(struct phy_device * phydev)1325 static int mv2111_match_phy_device(struct phy_device *phydev)
1326 {
1327 return mv211x_match_phy_device(phydev, false);
1328 }
1329
mv3110_get_wol(struct phy_device * phydev,struct ethtool_wolinfo * wol)1330 static void mv3110_get_wol(struct phy_device *phydev,
1331 struct ethtool_wolinfo *wol)
1332 {
1333 int ret;
1334
1335 wol->supported = WAKE_MAGIC;
1336 wol->wolopts = 0;
1337
1338 ret = phy_read_mmd(phydev, MDIO_MMD_VEND2, MV_V2_WOL_CTRL);
1339 if (ret < 0)
1340 return;
1341
1342 if (ret & MV_V2_WOL_CTRL_MAGIC_PKT_EN)
1343 wol->wolopts |= WAKE_MAGIC;
1344 }
1345
mv3110_set_wol(struct phy_device * phydev,struct ethtool_wolinfo * wol)1346 static int mv3110_set_wol(struct phy_device *phydev,
1347 struct ethtool_wolinfo *wol)
1348 {
1349 int ret;
1350
1351 if (wol->wolopts & WAKE_MAGIC) {
1352 /* Enable the WOL interrupt */
1353 ret = phy_set_bits_mmd(phydev, MDIO_MMD_VEND2,
1354 MV_V2_PORT_INTR_MASK,
1355 MV_V2_PORT_INTR_STS_WOL_EN);
1356 if (ret < 0)
1357 return ret;
1358
1359 /* Store the device address for the magic packet */
1360 ret = phy_write_mmd(phydev, MDIO_MMD_VEND2,
1361 MV_V2_MAGIC_PKT_WORD2,
1362 ((phydev->attached_dev->dev_addr[5] << 8) |
1363 phydev->attached_dev->dev_addr[4]));
1364 if (ret < 0)
1365 return ret;
1366
1367 ret = phy_write_mmd(phydev, MDIO_MMD_VEND2,
1368 MV_V2_MAGIC_PKT_WORD1,
1369 ((phydev->attached_dev->dev_addr[3] << 8) |
1370 phydev->attached_dev->dev_addr[2]));
1371 if (ret < 0)
1372 return ret;
1373
1374 ret = phy_write_mmd(phydev, MDIO_MMD_VEND2,
1375 MV_V2_MAGIC_PKT_WORD0,
1376 ((phydev->attached_dev->dev_addr[1] << 8) |
1377 phydev->attached_dev->dev_addr[0]));
1378 if (ret < 0)
1379 return ret;
1380
1381 /* Clear WOL status and enable magic packet matching */
1382 ret = phy_set_bits_mmd(phydev, MDIO_MMD_VEND2,
1383 MV_V2_WOL_CTRL,
1384 MV_V2_WOL_CTRL_MAGIC_PKT_EN |
1385 MV_V2_WOL_CTRL_CLEAR_STS);
1386 if (ret < 0)
1387 return ret;
1388 } else {
1389 /* Disable magic packet matching & reset WOL status bit */
1390 ret = phy_modify_mmd(phydev, MDIO_MMD_VEND2,
1391 MV_V2_WOL_CTRL,
1392 MV_V2_WOL_CTRL_MAGIC_PKT_EN,
1393 MV_V2_WOL_CTRL_CLEAR_STS);
1394 if (ret < 0)
1395 return ret;
1396 }
1397
1398 /* Reset the clear WOL status bit as it does not self-clear */
1399 return phy_clear_bits_mmd(phydev, MDIO_MMD_VEND2,
1400 MV_V2_WOL_CTRL,
1401 MV_V2_WOL_CTRL_CLEAR_STS);
1402 }
1403
1404 static struct phy_driver mv3310_drivers[] = {
1405 {
1406 .phy_id = MARVELL_PHY_ID_88X3310,
1407 .phy_id_mask = MARVELL_PHY_ID_MASK,
1408 .match_phy_device = mv3310_match_phy_device,
1409 .name = "mv88x3310",
1410 .driver_data = &mv3310_type,
1411 .get_features = mv3310_get_features,
1412 .config_init = mv3310_config_init,
1413 .probe = mv3310_probe,
1414 .suspend = mv3310_suspend,
1415 .resume = mv3310_resume,
1416 .config_aneg = mv3310_config_aneg,
1417 .aneg_done = mv3310_aneg_done,
1418 .read_status = mv3310_read_status,
1419 .get_tunable = mv3310_get_tunable,
1420 .set_tunable = mv3310_set_tunable,
1421 .remove = mv3310_remove,
1422 .set_loopback = genphy_c45_loopback,
1423 .get_wol = mv3110_get_wol,
1424 .set_wol = mv3110_set_wol,
1425 },
1426 {
1427 .phy_id = MARVELL_PHY_ID_88X3310,
1428 .phy_id_mask = MARVELL_PHY_ID_MASK,
1429 .match_phy_device = mv3340_match_phy_device,
1430 .name = "mv88x3340",
1431 .driver_data = &mv3340_type,
1432 .get_features = mv3310_get_features,
1433 .config_init = mv3310_config_init,
1434 .probe = mv3310_probe,
1435 .suspend = mv3310_suspend,
1436 .resume = mv3310_resume,
1437 .config_aneg = mv3310_config_aneg,
1438 .aneg_done = mv3310_aneg_done,
1439 .read_status = mv3310_read_status,
1440 .get_tunable = mv3310_get_tunable,
1441 .set_tunable = mv3310_set_tunable,
1442 .remove = mv3310_remove,
1443 .set_loopback = genphy_c45_loopback,
1444 },
1445 {
1446 .phy_id = MARVELL_PHY_ID_88E2110,
1447 .phy_id_mask = MARVELL_PHY_ID_MASK,
1448 .match_phy_device = mv2110_match_phy_device,
1449 .name = "mv88e2110",
1450 .driver_data = &mv2110_type,
1451 .probe = mv3310_probe,
1452 .suspend = mv3310_suspend,
1453 .resume = mv3310_resume,
1454 .config_init = mv3310_config_init,
1455 .config_aneg = mv3310_config_aneg,
1456 .aneg_done = mv3310_aneg_done,
1457 .read_status = mv3310_read_status,
1458 .get_tunable = mv3310_get_tunable,
1459 .set_tunable = mv3310_set_tunable,
1460 .remove = mv3310_remove,
1461 .set_loopback = genphy_c45_loopback,
1462 .get_wol = mv3110_get_wol,
1463 .set_wol = mv3110_set_wol,
1464 },
1465 {
1466 .phy_id = MARVELL_PHY_ID_88E2110,
1467 .phy_id_mask = MARVELL_PHY_ID_MASK,
1468 .match_phy_device = mv2111_match_phy_device,
1469 .name = "mv88e2111",
1470 .driver_data = &mv2111_type,
1471 .probe = mv3310_probe,
1472 .suspend = mv3310_suspend,
1473 .resume = mv3310_resume,
1474 .config_init = mv3310_config_init,
1475 .config_aneg = mv3310_config_aneg,
1476 .aneg_done = mv3310_aneg_done,
1477 .read_status = mv3310_read_status,
1478 .get_tunable = mv3310_get_tunable,
1479 .set_tunable = mv3310_set_tunable,
1480 .remove = mv3310_remove,
1481 .set_loopback = genphy_c45_loopback,
1482 },
1483 };
1484
1485 module_phy_driver(mv3310_drivers);
1486
1487 static struct mdio_device_id __maybe_unused mv3310_tbl[] = {
1488 { MARVELL_PHY_ID_88X3310, MARVELL_PHY_ID_MASK },
1489 { MARVELL_PHY_ID_88E2110, MARVELL_PHY_ID_MASK },
1490 { },
1491 };
1492 MODULE_DEVICE_TABLE(mdio, mv3310_tbl);
1493 MODULE_DESCRIPTION("Marvell Alaska X/M multi-gigabit Ethernet PHY driver");
1494 MODULE_LICENSE("GPL");
1495