1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
2 /*
3 * Driver for Microsemi VSC85xx PHYs
4 *
5 * Author: Nagaraju Lakkaraju
6 * License: Dual MIT/GPL
7 * Copyright (c) 2016 Microsemi Corporation
8 */
9
10 #include <linux/firmware.h>
11 #include <linux/jiffies.h>
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14 #include <linux/mdio.h>
15 #include <linux/mii.h>
16 #include <linux/phy.h>
17 #include <linux/of.h>
18 #include <linux/netdevice.h>
19 #include <dt-bindings/net/mscc-phy-vsc8531.h>
20
21 #include "mscc.h"
22
23 static const struct vsc85xx_hw_stat vsc85xx_hw_stats[] = {
24 {
25 .string = "phy_receive_errors",
26 .reg = MSCC_PHY_ERR_RX_CNT,
27 .page = MSCC_PHY_PAGE_STANDARD,
28 .mask = ERR_CNT_MASK,
29 }, {
30 .string = "phy_false_carrier",
31 .reg = MSCC_PHY_ERR_FALSE_CARRIER_CNT,
32 .page = MSCC_PHY_PAGE_STANDARD,
33 .mask = ERR_CNT_MASK,
34 }, {
35 .string = "phy_cu_media_link_disconnect",
36 .reg = MSCC_PHY_ERR_LINK_DISCONNECT_CNT,
37 .page = MSCC_PHY_PAGE_STANDARD,
38 .mask = ERR_CNT_MASK,
39 }, {
40 .string = "phy_cu_media_crc_good_count",
41 .reg = MSCC_PHY_CU_MEDIA_CRC_VALID_CNT,
42 .page = MSCC_PHY_PAGE_EXTENDED,
43 .mask = VALID_CRC_CNT_CRC_MASK,
44 }, {
45 .string = "phy_cu_media_crc_error_count",
46 .reg = MSCC_PHY_EXT_PHY_CNTL_4,
47 .page = MSCC_PHY_PAGE_EXTENDED,
48 .mask = ERR_CNT_MASK,
49 },
50 };
51
52 static const struct vsc85xx_hw_stat vsc8584_hw_stats[] = {
53 {
54 .string = "phy_receive_errors",
55 .reg = MSCC_PHY_ERR_RX_CNT,
56 .page = MSCC_PHY_PAGE_STANDARD,
57 .mask = ERR_CNT_MASK,
58 }, {
59 .string = "phy_false_carrier",
60 .reg = MSCC_PHY_ERR_FALSE_CARRIER_CNT,
61 .page = MSCC_PHY_PAGE_STANDARD,
62 .mask = ERR_CNT_MASK,
63 }, {
64 .string = "phy_cu_media_link_disconnect",
65 .reg = MSCC_PHY_ERR_LINK_DISCONNECT_CNT,
66 .page = MSCC_PHY_PAGE_STANDARD,
67 .mask = ERR_CNT_MASK,
68 }, {
69 .string = "phy_cu_media_crc_good_count",
70 .reg = MSCC_PHY_CU_MEDIA_CRC_VALID_CNT,
71 .page = MSCC_PHY_PAGE_EXTENDED,
72 .mask = VALID_CRC_CNT_CRC_MASK,
73 }, {
74 .string = "phy_cu_media_crc_error_count",
75 .reg = MSCC_PHY_EXT_PHY_CNTL_4,
76 .page = MSCC_PHY_PAGE_EXTENDED,
77 .mask = ERR_CNT_MASK,
78 }, {
79 .string = "phy_serdes_tx_good_pkt_count",
80 .reg = MSCC_PHY_SERDES_TX_VALID_CNT,
81 .page = MSCC_PHY_PAGE_EXTENDED_3,
82 .mask = VALID_CRC_CNT_CRC_MASK,
83 }, {
84 .string = "phy_serdes_tx_bad_crc_count",
85 .reg = MSCC_PHY_SERDES_TX_CRC_ERR_CNT,
86 .page = MSCC_PHY_PAGE_EXTENDED_3,
87 .mask = ERR_CNT_MASK,
88 }, {
89 .string = "phy_serdes_rx_good_pkt_count",
90 .reg = MSCC_PHY_SERDES_RX_VALID_CNT,
91 .page = MSCC_PHY_PAGE_EXTENDED_3,
92 .mask = VALID_CRC_CNT_CRC_MASK,
93 }, {
94 .string = "phy_serdes_rx_bad_crc_count",
95 .reg = MSCC_PHY_SERDES_RX_CRC_ERR_CNT,
96 .page = MSCC_PHY_PAGE_EXTENDED_3,
97 .mask = ERR_CNT_MASK,
98 },
99 };
100
101 #if IS_ENABLED(CONFIG_OF_MDIO)
102 static const struct vsc8531_edge_rate_table edge_table[] = {
103 {MSCC_VDDMAC_3300, { 0, 2, 4, 7, 10, 17, 29, 53} },
104 {MSCC_VDDMAC_2500, { 0, 3, 6, 10, 14, 23, 37, 63} },
105 {MSCC_VDDMAC_1800, { 0, 5, 9, 16, 23, 35, 52, 76} },
106 {MSCC_VDDMAC_1500, { 0, 6, 14, 21, 29, 42, 58, 77} },
107 };
108 #endif
109
vsc85xx_phy_read_page(struct phy_device * phydev)110 static int vsc85xx_phy_read_page(struct phy_device *phydev)
111 {
112 return __phy_read(phydev, MSCC_EXT_PAGE_ACCESS);
113 }
114
vsc85xx_phy_write_page(struct phy_device * phydev,int page)115 static int vsc85xx_phy_write_page(struct phy_device *phydev, int page)
116 {
117 return __phy_write(phydev, MSCC_EXT_PAGE_ACCESS, page);
118 }
119
vsc85xx_get_sset_count(struct phy_device * phydev)120 static int vsc85xx_get_sset_count(struct phy_device *phydev)
121 {
122 struct vsc8531_private *priv = phydev->priv;
123
124 if (!priv)
125 return 0;
126
127 return priv->nstats;
128 }
129
vsc85xx_get_strings(struct phy_device * phydev,u8 * data)130 static void vsc85xx_get_strings(struct phy_device *phydev, u8 *data)
131 {
132 struct vsc8531_private *priv = phydev->priv;
133 int i;
134
135 if (!priv)
136 return;
137
138 for (i = 0; i < priv->nstats; i++)
139 strlcpy(data + i * ETH_GSTRING_LEN, priv->hw_stats[i].string,
140 ETH_GSTRING_LEN);
141 }
142
vsc85xx_get_stat(struct phy_device * phydev,int i)143 static u64 vsc85xx_get_stat(struct phy_device *phydev, int i)
144 {
145 struct vsc8531_private *priv = phydev->priv;
146 int val;
147
148 val = phy_read_paged(phydev, priv->hw_stats[i].page,
149 priv->hw_stats[i].reg);
150 if (val < 0)
151 return U64_MAX;
152
153 val = val & priv->hw_stats[i].mask;
154 priv->stats[i] += val;
155
156 return priv->stats[i];
157 }
158
vsc85xx_get_stats(struct phy_device * phydev,struct ethtool_stats * stats,u64 * data)159 static void vsc85xx_get_stats(struct phy_device *phydev,
160 struct ethtool_stats *stats, u64 *data)
161 {
162 struct vsc8531_private *priv = phydev->priv;
163 int i;
164
165 if (!priv)
166 return;
167
168 for (i = 0; i < priv->nstats; i++)
169 data[i] = vsc85xx_get_stat(phydev, i);
170 }
171
vsc85xx_led_cntl_set(struct phy_device * phydev,u8 led_num,u8 mode)172 static int vsc85xx_led_cntl_set(struct phy_device *phydev,
173 u8 led_num,
174 u8 mode)
175 {
176 int rc;
177 u16 reg_val;
178
179 mutex_lock(&phydev->lock);
180 reg_val = phy_read(phydev, MSCC_PHY_LED_MODE_SEL);
181 reg_val &= ~LED_MODE_SEL_MASK(led_num);
182 reg_val |= LED_MODE_SEL(led_num, (u16)mode);
183 rc = phy_write(phydev, MSCC_PHY_LED_MODE_SEL, reg_val);
184 mutex_unlock(&phydev->lock);
185
186 return rc;
187 }
188
vsc85xx_mdix_get(struct phy_device * phydev,u8 * mdix)189 static int vsc85xx_mdix_get(struct phy_device *phydev, u8 *mdix)
190 {
191 u16 reg_val;
192
193 reg_val = phy_read(phydev, MSCC_PHY_DEV_AUX_CNTL);
194 if (reg_val & HP_AUTO_MDIX_X_OVER_IND_MASK)
195 *mdix = ETH_TP_MDI_X;
196 else
197 *mdix = ETH_TP_MDI;
198
199 return 0;
200 }
201
vsc85xx_mdix_set(struct phy_device * phydev,u8 mdix)202 static int vsc85xx_mdix_set(struct phy_device *phydev, u8 mdix)
203 {
204 int rc;
205 u16 reg_val;
206
207 reg_val = phy_read(phydev, MSCC_PHY_BYPASS_CONTROL);
208 if (mdix == ETH_TP_MDI || mdix == ETH_TP_MDI_X) {
209 reg_val |= (DISABLE_PAIR_SWAP_CORR_MASK |
210 DISABLE_POLARITY_CORR_MASK |
211 DISABLE_HP_AUTO_MDIX_MASK);
212 } else {
213 reg_val &= ~(DISABLE_PAIR_SWAP_CORR_MASK |
214 DISABLE_POLARITY_CORR_MASK |
215 DISABLE_HP_AUTO_MDIX_MASK);
216 }
217 rc = phy_write(phydev, MSCC_PHY_BYPASS_CONTROL, reg_val);
218 if (rc)
219 return rc;
220
221 reg_val = 0;
222
223 if (mdix == ETH_TP_MDI)
224 reg_val = FORCE_MDI_CROSSOVER_MDI;
225 else if (mdix == ETH_TP_MDI_X)
226 reg_val = FORCE_MDI_CROSSOVER_MDIX;
227
228 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED,
229 MSCC_PHY_EXT_MODE_CNTL, FORCE_MDI_CROSSOVER_MASK,
230 reg_val);
231 if (rc < 0)
232 return rc;
233
234 return genphy_restart_aneg(phydev);
235 }
236
vsc85xx_downshift_get(struct phy_device * phydev,u8 * count)237 static int vsc85xx_downshift_get(struct phy_device *phydev, u8 *count)
238 {
239 int reg_val;
240
241 reg_val = phy_read_paged(phydev, MSCC_PHY_PAGE_EXTENDED,
242 MSCC_PHY_ACTIPHY_CNTL);
243 if (reg_val < 0)
244 return reg_val;
245
246 reg_val &= DOWNSHIFT_CNTL_MASK;
247 if (!(reg_val & DOWNSHIFT_EN))
248 *count = DOWNSHIFT_DEV_DISABLE;
249 else
250 *count = ((reg_val & ~DOWNSHIFT_EN) >> DOWNSHIFT_CNTL_POS) + 2;
251
252 return 0;
253 }
254
vsc85xx_downshift_set(struct phy_device * phydev,u8 count)255 static int vsc85xx_downshift_set(struct phy_device *phydev, u8 count)
256 {
257 if (count == DOWNSHIFT_DEV_DEFAULT_COUNT) {
258 /* Default downshift count 3 (i.e. Bit3:2 = 0b01) */
259 count = ((1 << DOWNSHIFT_CNTL_POS) | DOWNSHIFT_EN);
260 } else if (count > DOWNSHIFT_COUNT_MAX || count == 1) {
261 phydev_err(phydev, "Downshift count should be 2,3,4 or 5\n");
262 return -ERANGE;
263 } else if (count) {
264 /* Downshift count is either 2,3,4 or 5 */
265 count = (((count - 2) << DOWNSHIFT_CNTL_POS) | DOWNSHIFT_EN);
266 }
267
268 return phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED,
269 MSCC_PHY_ACTIPHY_CNTL, DOWNSHIFT_CNTL_MASK,
270 count);
271 }
272
vsc85xx_wol_set(struct phy_device * phydev,struct ethtool_wolinfo * wol)273 static int vsc85xx_wol_set(struct phy_device *phydev,
274 struct ethtool_wolinfo *wol)
275 {
276 int rc;
277 u16 reg_val;
278 u8 i;
279 u16 pwd[3] = {0, 0, 0};
280 struct ethtool_wolinfo *wol_conf = wol;
281 u8 *mac_addr = phydev->attached_dev->dev_addr;
282
283 mutex_lock(&phydev->lock);
284 rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2);
285 if (rc < 0) {
286 rc = phy_restore_page(phydev, rc, rc);
287 goto out_unlock;
288 }
289
290 if (wol->wolopts & WAKE_MAGIC) {
291 /* Store the device address for the magic packet */
292 for (i = 0; i < ARRAY_SIZE(pwd); i++)
293 pwd[i] = mac_addr[5 - (i * 2 + 1)] << 8 |
294 mac_addr[5 - i * 2];
295 __phy_write(phydev, MSCC_PHY_WOL_LOWER_MAC_ADDR, pwd[0]);
296 __phy_write(phydev, MSCC_PHY_WOL_MID_MAC_ADDR, pwd[1]);
297 __phy_write(phydev, MSCC_PHY_WOL_UPPER_MAC_ADDR, pwd[2]);
298 } else {
299 __phy_write(phydev, MSCC_PHY_WOL_LOWER_MAC_ADDR, 0);
300 __phy_write(phydev, MSCC_PHY_WOL_MID_MAC_ADDR, 0);
301 __phy_write(phydev, MSCC_PHY_WOL_UPPER_MAC_ADDR, 0);
302 }
303
304 if (wol_conf->wolopts & WAKE_MAGICSECURE) {
305 for (i = 0; i < ARRAY_SIZE(pwd); i++)
306 pwd[i] = wol_conf->sopass[5 - (i * 2 + 1)] << 8 |
307 wol_conf->sopass[5 - i * 2];
308 __phy_write(phydev, MSCC_PHY_WOL_LOWER_PASSWD, pwd[0]);
309 __phy_write(phydev, MSCC_PHY_WOL_MID_PASSWD, pwd[1]);
310 __phy_write(phydev, MSCC_PHY_WOL_UPPER_PASSWD, pwd[2]);
311 } else {
312 __phy_write(phydev, MSCC_PHY_WOL_LOWER_PASSWD, 0);
313 __phy_write(phydev, MSCC_PHY_WOL_MID_PASSWD, 0);
314 __phy_write(phydev, MSCC_PHY_WOL_UPPER_PASSWD, 0);
315 }
316
317 reg_val = __phy_read(phydev, MSCC_PHY_WOL_MAC_CONTROL);
318 if (wol_conf->wolopts & WAKE_MAGICSECURE)
319 reg_val |= SECURE_ON_ENABLE;
320 else
321 reg_val &= ~SECURE_ON_ENABLE;
322 __phy_write(phydev, MSCC_PHY_WOL_MAC_CONTROL, reg_val);
323
324 rc = phy_restore_page(phydev, rc, rc > 0 ? 0 : rc);
325 if (rc < 0)
326 goto out_unlock;
327
328 if (wol->wolopts & WAKE_MAGIC) {
329 /* Enable the WOL interrupt */
330 reg_val = phy_read(phydev, MII_VSC85XX_INT_MASK);
331 reg_val |= MII_VSC85XX_INT_MASK_WOL;
332 rc = phy_write(phydev, MII_VSC85XX_INT_MASK, reg_val);
333 if (rc)
334 goto out_unlock;
335 } else {
336 /* Disable the WOL interrupt */
337 reg_val = phy_read(phydev, MII_VSC85XX_INT_MASK);
338 reg_val &= (~MII_VSC85XX_INT_MASK_WOL);
339 rc = phy_write(phydev, MII_VSC85XX_INT_MASK, reg_val);
340 if (rc)
341 goto out_unlock;
342 }
343 /* Clear WOL iterrupt status */
344 reg_val = phy_read(phydev, MII_VSC85XX_INT_STATUS);
345
346 out_unlock:
347 mutex_unlock(&phydev->lock);
348
349 return rc;
350 }
351
vsc85xx_wol_get(struct phy_device * phydev,struct ethtool_wolinfo * wol)352 static void vsc85xx_wol_get(struct phy_device *phydev,
353 struct ethtool_wolinfo *wol)
354 {
355 int rc;
356 u16 reg_val;
357 u8 i;
358 u16 pwd[3] = {0, 0, 0};
359 struct ethtool_wolinfo *wol_conf = wol;
360
361 mutex_lock(&phydev->lock);
362 rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2);
363 if (rc < 0)
364 goto out_unlock;
365
366 reg_val = __phy_read(phydev, MSCC_PHY_WOL_MAC_CONTROL);
367 if (reg_val & SECURE_ON_ENABLE)
368 wol_conf->wolopts |= WAKE_MAGICSECURE;
369 if (wol_conf->wolopts & WAKE_MAGICSECURE) {
370 pwd[0] = __phy_read(phydev, MSCC_PHY_WOL_LOWER_PASSWD);
371 pwd[1] = __phy_read(phydev, MSCC_PHY_WOL_MID_PASSWD);
372 pwd[2] = __phy_read(phydev, MSCC_PHY_WOL_UPPER_PASSWD);
373 for (i = 0; i < ARRAY_SIZE(pwd); i++) {
374 wol_conf->sopass[5 - i * 2] = pwd[i] & 0x00ff;
375 wol_conf->sopass[5 - (i * 2 + 1)] = (pwd[i] & 0xff00)
376 >> 8;
377 }
378 }
379
380 out_unlock:
381 phy_restore_page(phydev, rc, rc > 0 ? 0 : rc);
382 mutex_unlock(&phydev->lock);
383 }
384
385 #if IS_ENABLED(CONFIG_OF_MDIO)
vsc85xx_edge_rate_magic_get(struct phy_device * phydev)386 static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev)
387 {
388 u32 vdd, sd;
389 int i, j;
390 struct device *dev = &phydev->mdio.dev;
391 struct device_node *of_node = dev->of_node;
392 u8 sd_array_size = ARRAY_SIZE(edge_table[0].slowdown);
393
394 if (!of_node)
395 return -ENODEV;
396
397 if (of_property_read_u32(of_node, "vsc8531,vddmac", &vdd))
398 vdd = MSCC_VDDMAC_3300;
399
400 if (of_property_read_u32(of_node, "vsc8531,edge-slowdown", &sd))
401 sd = 0;
402
403 for (i = 0; i < ARRAY_SIZE(edge_table); i++)
404 if (edge_table[i].vddmac == vdd)
405 for (j = 0; j < sd_array_size; j++)
406 if (edge_table[i].slowdown[j] == sd)
407 return (sd_array_size - j - 1);
408
409 return -EINVAL;
410 }
411
vsc85xx_dt_led_mode_get(struct phy_device * phydev,char * led,u32 default_mode)412 static int vsc85xx_dt_led_mode_get(struct phy_device *phydev,
413 char *led,
414 u32 default_mode)
415 {
416 struct vsc8531_private *priv = phydev->priv;
417 struct device *dev = &phydev->mdio.dev;
418 struct device_node *of_node = dev->of_node;
419 u32 led_mode;
420 int err;
421
422 if (!of_node)
423 return -ENODEV;
424
425 led_mode = default_mode;
426 err = of_property_read_u32(of_node, led, &led_mode);
427 if (!err && !(BIT(led_mode) & priv->supp_led_modes)) {
428 phydev_err(phydev, "DT %s invalid\n", led);
429 return -EINVAL;
430 }
431
432 return led_mode;
433 }
434
435 #else
vsc85xx_edge_rate_magic_get(struct phy_device * phydev)436 static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev)
437 {
438 return 0;
439 }
440
vsc85xx_dt_led_mode_get(struct phy_device * phydev,char * led,u8 default_mode)441 static int vsc85xx_dt_led_mode_get(struct phy_device *phydev,
442 char *led,
443 u8 default_mode)
444 {
445 return default_mode;
446 }
447 #endif /* CONFIG_OF_MDIO */
448
vsc85xx_dt_led_modes_get(struct phy_device * phydev,u32 * default_mode)449 static int vsc85xx_dt_led_modes_get(struct phy_device *phydev,
450 u32 *default_mode)
451 {
452 struct vsc8531_private *priv = phydev->priv;
453 char led_dt_prop[28];
454 int i, ret;
455
456 for (i = 0; i < priv->nleds; i++) {
457 ret = sprintf(led_dt_prop, "vsc8531,led-%d-mode", i);
458 if (ret < 0)
459 return ret;
460
461 ret = vsc85xx_dt_led_mode_get(phydev, led_dt_prop,
462 default_mode[i]);
463 if (ret < 0)
464 return ret;
465 priv->leds_mode[i] = ret;
466 }
467
468 return 0;
469 }
470
vsc85xx_edge_rate_cntl_set(struct phy_device * phydev,u8 edge_rate)471 static int vsc85xx_edge_rate_cntl_set(struct phy_device *phydev, u8 edge_rate)
472 {
473 int rc;
474
475 mutex_lock(&phydev->lock);
476 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_2,
477 MSCC_PHY_WOL_MAC_CONTROL, EDGE_RATE_CNTL_MASK,
478 edge_rate << EDGE_RATE_CNTL_POS);
479 mutex_unlock(&phydev->lock);
480
481 return rc;
482 }
483
vsc85xx_mac_if_set(struct phy_device * phydev,phy_interface_t interface)484 static int vsc85xx_mac_if_set(struct phy_device *phydev,
485 phy_interface_t interface)
486 {
487 int rc;
488 u16 reg_val;
489
490 mutex_lock(&phydev->lock);
491 reg_val = phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_1);
492 reg_val &= ~(MAC_IF_SELECTION_MASK);
493 switch (interface) {
494 case PHY_INTERFACE_MODE_RGMII_TXID:
495 case PHY_INTERFACE_MODE_RGMII_RXID:
496 case PHY_INTERFACE_MODE_RGMII_ID:
497 case PHY_INTERFACE_MODE_RGMII:
498 reg_val |= (MAC_IF_SELECTION_RGMII << MAC_IF_SELECTION_POS);
499 break;
500 case PHY_INTERFACE_MODE_RMII:
501 reg_val |= (MAC_IF_SELECTION_RMII << MAC_IF_SELECTION_POS);
502 break;
503 case PHY_INTERFACE_MODE_MII:
504 case PHY_INTERFACE_MODE_GMII:
505 reg_val |= (MAC_IF_SELECTION_GMII << MAC_IF_SELECTION_POS);
506 break;
507 default:
508 rc = -EINVAL;
509 goto out_unlock;
510 }
511 rc = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, reg_val);
512 if (rc)
513 goto out_unlock;
514
515 rc = genphy_soft_reset(phydev);
516
517 out_unlock:
518 mutex_unlock(&phydev->lock);
519
520 return rc;
521 }
522
523 /* Set the RGMII RX and TX clock skews individually, according to the PHY
524 * interface type, to:
525 * * 0.2 ns (their default, and lowest, hardware value) if delays should
526 * not be enabled
527 * * 2.0 ns (which causes the data to be sampled at exactly half way between
528 * clock transitions at 1000 Mbps) if delays should be enabled
529 */
vsc85xx_rgmii_set_skews(struct phy_device * phydev,u32 rgmii_cntl,u16 rgmii_rx_delay_mask,u16 rgmii_tx_delay_mask)530 static int vsc85xx_rgmii_set_skews(struct phy_device *phydev, u32 rgmii_cntl,
531 u16 rgmii_rx_delay_mask,
532 u16 rgmii_tx_delay_mask)
533 {
534 u16 rgmii_rx_delay_pos = ffs(rgmii_rx_delay_mask) - 1;
535 u16 rgmii_tx_delay_pos = ffs(rgmii_tx_delay_mask) - 1;
536 u16 reg_val = 0;
537 int rc;
538
539 mutex_lock(&phydev->lock);
540
541 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID ||
542 phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
543 reg_val |= RGMII_CLK_DELAY_2_0_NS << rgmii_rx_delay_pos;
544 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID ||
545 phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
546 reg_val |= RGMII_CLK_DELAY_2_0_NS << rgmii_tx_delay_pos;
547
548 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_2,
549 rgmii_cntl,
550 rgmii_rx_delay_mask | rgmii_tx_delay_mask,
551 reg_val);
552
553 mutex_unlock(&phydev->lock);
554
555 return rc;
556 }
557
vsc85xx_default_config(struct phy_device * phydev)558 static int vsc85xx_default_config(struct phy_device *phydev)
559 {
560 int rc;
561
562 phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
563
564 if (phy_interface_mode_is_rgmii(phydev->interface)) {
565 rc = vsc85xx_rgmii_set_skews(phydev, VSC8502_RGMII_CNTL,
566 VSC8502_RGMII_RX_DELAY_MASK,
567 VSC8502_RGMII_TX_DELAY_MASK);
568 if (rc)
569 return rc;
570 }
571
572 return 0;
573 }
574
vsc85xx_get_tunable(struct phy_device * phydev,struct ethtool_tunable * tuna,void * data)575 static int vsc85xx_get_tunable(struct phy_device *phydev,
576 struct ethtool_tunable *tuna, void *data)
577 {
578 switch (tuna->id) {
579 case ETHTOOL_PHY_DOWNSHIFT:
580 return vsc85xx_downshift_get(phydev, (u8 *)data);
581 default:
582 return -EINVAL;
583 }
584 }
585
vsc85xx_set_tunable(struct phy_device * phydev,struct ethtool_tunable * tuna,const void * data)586 static int vsc85xx_set_tunable(struct phy_device *phydev,
587 struct ethtool_tunable *tuna,
588 const void *data)
589 {
590 switch (tuna->id) {
591 case ETHTOOL_PHY_DOWNSHIFT:
592 return vsc85xx_downshift_set(phydev, *(u8 *)data);
593 default:
594 return -EINVAL;
595 }
596 }
597
598 /* mdiobus lock should be locked when using this function */
vsc85xx_tr_write(struct phy_device * phydev,u16 addr,u32 val)599 static void vsc85xx_tr_write(struct phy_device *phydev, u16 addr, u32 val)
600 {
601 __phy_write(phydev, MSCC_PHY_TR_MSB, val >> 16);
602 __phy_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0));
603 __phy_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr));
604 }
605
vsc8531_pre_init_seq_set(struct phy_device * phydev)606 static int vsc8531_pre_init_seq_set(struct phy_device *phydev)
607 {
608 int rc;
609 static const struct reg_val init_seq[] = {
610 {0x0f90, 0x00688980},
611 {0x0696, 0x00000003},
612 {0x07fa, 0x0050100f},
613 {0x1686, 0x00000004},
614 };
615 unsigned int i;
616 int oldpage;
617
618 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_STANDARD,
619 MSCC_PHY_EXT_CNTL_STATUS, SMI_BROADCAST_WR_EN,
620 SMI_BROADCAST_WR_EN);
621 if (rc < 0)
622 return rc;
623 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST,
624 MSCC_PHY_TEST_PAGE_24, 0, 0x0400);
625 if (rc < 0)
626 return rc;
627 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST,
628 MSCC_PHY_TEST_PAGE_5, 0x0a00, 0x0e00);
629 if (rc < 0)
630 return rc;
631 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST,
632 MSCC_PHY_TEST_PAGE_8, TR_CLK_DISABLE, TR_CLK_DISABLE);
633 if (rc < 0)
634 return rc;
635
636 mutex_lock(&phydev->lock);
637 oldpage = phy_select_page(phydev, MSCC_PHY_PAGE_TR);
638 if (oldpage < 0)
639 goto out_unlock;
640
641 for (i = 0; i < ARRAY_SIZE(init_seq); i++)
642 vsc85xx_tr_write(phydev, init_seq[i].reg, init_seq[i].val);
643
644 out_unlock:
645 oldpage = phy_restore_page(phydev, oldpage, oldpage);
646 mutex_unlock(&phydev->lock);
647
648 return oldpage;
649 }
650
vsc85xx_eee_init_seq_set(struct phy_device * phydev)651 static int vsc85xx_eee_init_seq_set(struct phy_device *phydev)
652 {
653 static const struct reg_val init_eee[] = {
654 {0x0f82, 0x0012b00a},
655 {0x1686, 0x00000004},
656 {0x168c, 0x00d2c46f},
657 {0x17a2, 0x00000620},
658 {0x16a0, 0x00eeffdd},
659 {0x16a6, 0x00071448},
660 {0x16a4, 0x0013132f},
661 {0x16a8, 0x00000000},
662 {0x0ffc, 0x00c0a028},
663 {0x0fe8, 0x0091b06c},
664 {0x0fea, 0x00041600},
665 {0x0f80, 0x00000af4},
666 {0x0fec, 0x00901809},
667 {0x0fee, 0x0000a6a1},
668 {0x0ffe, 0x00b01007},
669 {0x16b0, 0x00eeff00},
670 {0x16b2, 0x00007000},
671 {0x16b4, 0x00000814},
672 };
673 unsigned int i;
674 int oldpage;
675
676 mutex_lock(&phydev->lock);
677 oldpage = phy_select_page(phydev, MSCC_PHY_PAGE_TR);
678 if (oldpage < 0)
679 goto out_unlock;
680
681 for (i = 0; i < ARRAY_SIZE(init_eee); i++)
682 vsc85xx_tr_write(phydev, init_eee[i].reg, init_eee[i].val);
683
684 out_unlock:
685 oldpage = phy_restore_page(phydev, oldpage, oldpage);
686 mutex_unlock(&phydev->lock);
687
688 return oldpage;
689 }
690
691 /* phydev->bus->mdio_lock should be locked when using this function */
phy_base_write(struct phy_device * phydev,u32 regnum,u16 val)692 static int phy_base_write(struct phy_device *phydev, u32 regnum, u16 val)
693 {
694 if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) {
695 dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n");
696 dump_stack();
697 }
698
699 return __phy_package_write(phydev, regnum, val);
700 }
701
702 /* phydev->bus->mdio_lock should be locked when using this function */
phy_base_read(struct phy_device * phydev,u32 regnum)703 static int phy_base_read(struct phy_device *phydev, u32 regnum)
704 {
705 if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) {
706 dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n");
707 dump_stack();
708 }
709
710 return __phy_package_read(phydev, regnum);
711 }
712
vsc85xx_csr_read(struct phy_device * phydev,enum csr_target target,u32 reg)713 static u32 vsc85xx_csr_read(struct phy_device *phydev,
714 enum csr_target target, u32 reg)
715 {
716 unsigned long deadline;
717 u32 val, val_l, val_h;
718
719 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_CSR_CNTL);
720
721 /* CSR registers are grouped under different Target IDs.
722 * 6-bit Target_ID is split between MSCC_EXT_PAGE_CSR_CNTL_20 and
723 * MSCC_EXT_PAGE_CSR_CNTL_19 registers.
724 * Target_ID[5:2] maps to bits[3:0] of MSCC_EXT_PAGE_CSR_CNTL_20
725 * and Target_ID[1:0] maps to bits[13:12] of MSCC_EXT_PAGE_CSR_CNTL_19.
726 */
727
728 /* Setup the Target ID */
729 phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_20,
730 MSCC_PHY_CSR_CNTL_20_TARGET(target >> 2));
731
732 if ((target >> 2 == 0x1) || (target >> 2 == 0x3))
733 /* non-MACsec access */
734 target &= 0x3;
735 else
736 target = 0;
737
738 /* Trigger CSR Action - Read into the CSR's */
739 phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_19,
740 MSCC_PHY_CSR_CNTL_19_CMD | MSCC_PHY_CSR_CNTL_19_READ |
741 MSCC_PHY_CSR_CNTL_19_REG_ADDR(reg) |
742 MSCC_PHY_CSR_CNTL_19_TARGET(target));
743
744 /* Wait for register access*/
745 deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
746 do {
747 usleep_range(500, 1000);
748 val = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_19);
749 } while (time_before(jiffies, deadline) &&
750 !(val & MSCC_PHY_CSR_CNTL_19_CMD));
751
752 if (!(val & MSCC_PHY_CSR_CNTL_19_CMD))
753 return 0xffffffff;
754
755 /* Read the Least Significant Word (LSW) (17) */
756 val_l = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_17);
757
758 /* Read the Most Significant Word (MSW) (18) */
759 val_h = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_18);
760
761 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
762 MSCC_PHY_PAGE_STANDARD);
763
764 return (val_h << 16) | val_l;
765 }
766
vsc85xx_csr_write(struct phy_device * phydev,enum csr_target target,u32 reg,u32 val)767 static int vsc85xx_csr_write(struct phy_device *phydev,
768 enum csr_target target, u32 reg, u32 val)
769 {
770 unsigned long deadline;
771
772 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_CSR_CNTL);
773
774 /* CSR registers are grouped under different Target IDs.
775 * 6-bit Target_ID is split between MSCC_EXT_PAGE_CSR_CNTL_20 and
776 * MSCC_EXT_PAGE_CSR_CNTL_19 registers.
777 * Target_ID[5:2] maps to bits[3:0] of MSCC_EXT_PAGE_CSR_CNTL_20
778 * and Target_ID[1:0] maps to bits[13:12] of MSCC_EXT_PAGE_CSR_CNTL_19.
779 */
780
781 /* Setup the Target ID */
782 phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_20,
783 MSCC_PHY_CSR_CNTL_20_TARGET(target >> 2));
784
785 /* Write the Least Significant Word (LSW) (17) */
786 phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_17, (u16)val);
787
788 /* Write the Most Significant Word (MSW) (18) */
789 phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_18, (u16)(val >> 16));
790
791 if ((target >> 2 == 0x1) || (target >> 2 == 0x3))
792 /* non-MACsec access */
793 target &= 0x3;
794 else
795 target = 0;
796
797 /* Trigger CSR Action - Write into the CSR's */
798 phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_19,
799 MSCC_PHY_CSR_CNTL_19_CMD |
800 MSCC_PHY_CSR_CNTL_19_REG_ADDR(reg) |
801 MSCC_PHY_CSR_CNTL_19_TARGET(target));
802
803 /* Wait for register access */
804 deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
805 do {
806 usleep_range(500, 1000);
807 val = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_19);
808 } while (time_before(jiffies, deadline) &&
809 !(val & MSCC_PHY_CSR_CNTL_19_CMD));
810
811 if (!(val & MSCC_PHY_CSR_CNTL_19_CMD))
812 return -ETIMEDOUT;
813
814 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
815 MSCC_PHY_PAGE_STANDARD);
816
817 return 0;
818 }
819
820 /* bus->mdio_lock should be locked when using this function */
vsc8584_csr_write(struct phy_device * phydev,u16 addr,u32 val)821 static void vsc8584_csr_write(struct phy_device *phydev, u16 addr, u32 val)
822 {
823 phy_base_write(phydev, MSCC_PHY_TR_MSB, val >> 16);
824 phy_base_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0));
825 phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr));
826 }
827
828 /* bus->mdio_lock should be locked when using this function */
vsc8584_cmd(struct phy_device * phydev,u16 val)829 static int vsc8584_cmd(struct phy_device *phydev, u16 val)
830 {
831 unsigned long deadline;
832 u16 reg_val;
833
834 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
835 MSCC_PHY_PAGE_EXTENDED_GPIO);
836
837 phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NCOMPLETED | val);
838
839 deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
840 do {
841 reg_val = phy_base_read(phydev, MSCC_PHY_PROC_CMD);
842 } while (time_before(jiffies, deadline) &&
843 (reg_val & PROC_CMD_NCOMPLETED) &&
844 !(reg_val & PROC_CMD_FAILED));
845
846 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
847
848 if (reg_val & PROC_CMD_FAILED)
849 return -EIO;
850
851 if (reg_val & PROC_CMD_NCOMPLETED)
852 return -ETIMEDOUT;
853
854 return 0;
855 }
856
857 /* bus->mdio_lock should be locked when using this function */
vsc8584_micro_deassert_reset(struct phy_device * phydev,bool patch_en)858 static int vsc8584_micro_deassert_reset(struct phy_device *phydev,
859 bool patch_en)
860 {
861 u32 enable, release;
862
863 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
864 MSCC_PHY_PAGE_EXTENDED_GPIO);
865
866 enable = RUN_FROM_INT_ROM | MICRO_CLK_EN | DW8051_CLK_EN;
867 release = MICRO_NSOFT_RESET | RUN_FROM_INT_ROM | DW8051_CLK_EN |
868 MICRO_CLK_EN;
869
870 if (patch_en) {
871 enable |= MICRO_PATCH_EN;
872 release |= MICRO_PATCH_EN;
873
874 /* Clear all patches */
875 phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM);
876 }
877
878 /* Enable 8051 Micro clock; CLEAR/SET patch present; disable PRAM clock
879 * override and addr. auto-incr; operate at 125 MHz
880 */
881 phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, enable);
882 /* Release 8051 Micro SW reset */
883 phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, release);
884
885 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
886
887 return 0;
888 }
889
890 /* bus->mdio_lock should be locked when using this function */
vsc8584_micro_assert_reset(struct phy_device * phydev)891 static int vsc8584_micro_assert_reset(struct phy_device *phydev)
892 {
893 int ret;
894 u16 reg;
895
896 ret = vsc8584_cmd(phydev, PROC_CMD_NOP);
897 if (ret)
898 return ret;
899
900 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
901 MSCC_PHY_PAGE_EXTENDED_GPIO);
902
903 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
904 reg &= ~EN_PATCH_RAM_TRAP_ADDR(4);
905 phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
906
907 phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(4), 0x005b);
908 phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(4), 0x005b);
909
910 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
911 reg |= EN_PATCH_RAM_TRAP_ADDR(4);
912 phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
913
914 phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NOP);
915
916 reg = phy_base_read(phydev, MSCC_DW8051_CNTL_STATUS);
917 reg &= ~MICRO_NSOFT_RESET;
918 phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, reg);
919
920 phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_MCB_ACCESS_MAC_CONF |
921 PROC_CMD_SGMII_PORT(0) | PROC_CMD_NO_MAC_CONF |
922 PROC_CMD_READ);
923
924 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
925 reg &= ~EN_PATCH_RAM_TRAP_ADDR(4);
926 phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
927
928 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
929
930 return 0;
931 }
932
933 /* bus->mdio_lock should be locked when using this function */
vsc8584_get_fw_crc(struct phy_device * phydev,u16 start,u16 size,u16 * crc)934 static int vsc8584_get_fw_crc(struct phy_device *phydev, u16 start, u16 size,
935 u16 *crc)
936 {
937 int ret;
938
939 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);
940
941 phy_base_write(phydev, MSCC_PHY_VERIPHY_CNTL_2, start);
942 phy_base_write(phydev, MSCC_PHY_VERIPHY_CNTL_3, size);
943
944 /* Start Micro command */
945 ret = vsc8584_cmd(phydev, PROC_CMD_CRC16);
946 if (ret)
947 goto out;
948
949 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);
950
951 *crc = phy_base_read(phydev, MSCC_PHY_VERIPHY_CNTL_2);
952
953 out:
954 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
955
956 return ret;
957 }
958
959 /* bus->mdio_lock should be locked when using this function */
vsc8584_patch_fw(struct phy_device * phydev,const struct firmware * fw)960 static int vsc8584_patch_fw(struct phy_device *phydev,
961 const struct firmware *fw)
962 {
963 int i, ret;
964
965 ret = vsc8584_micro_assert_reset(phydev);
966 if (ret) {
967 dev_err(&phydev->mdio.dev,
968 "%s: failed to assert reset of micro\n", __func__);
969 return ret;
970 }
971
972 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
973 MSCC_PHY_PAGE_EXTENDED_GPIO);
974
975 /* Hold 8051 Micro in SW Reset, Enable auto incr address and patch clock
976 * Disable the 8051 Micro clock
977 */
978 phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, RUN_FROM_INT_ROM |
979 AUTOINC_ADDR | PATCH_RAM_CLK | MICRO_CLK_EN |
980 MICRO_CLK_DIVIDE(2));
981 phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_PRAM | INT_MEM_WRITE_EN |
982 INT_MEM_DATA(2));
983 phy_base_write(phydev, MSCC_INT_MEM_ADDR, 0x0000);
984
985 for (i = 0; i < fw->size; i++)
986 phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_PRAM |
987 INT_MEM_WRITE_EN | fw->data[i]);
988
989 /* Clear internal memory access */
990 phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM);
991
992 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
993
994 return 0;
995 }
996
997 /* bus->mdio_lock should be locked when using this function */
vsc8574_is_serdes_init(struct phy_device * phydev)998 static bool vsc8574_is_serdes_init(struct phy_device *phydev)
999 {
1000 u16 reg;
1001 bool ret;
1002
1003 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1004 MSCC_PHY_PAGE_EXTENDED_GPIO);
1005
1006 reg = phy_base_read(phydev, MSCC_TRAP_ROM_ADDR(1));
1007 if (reg != 0x3eb7) {
1008 ret = false;
1009 goto out;
1010 }
1011
1012 reg = phy_base_read(phydev, MSCC_PATCH_RAM_ADDR(1));
1013 if (reg != 0x4012) {
1014 ret = false;
1015 goto out;
1016 }
1017
1018 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
1019 if (reg != EN_PATCH_RAM_TRAP_ADDR(1)) {
1020 ret = false;
1021 goto out;
1022 }
1023
1024 reg = phy_base_read(phydev, MSCC_DW8051_CNTL_STATUS);
1025 if ((MICRO_NSOFT_RESET | RUN_FROM_INT_ROM | DW8051_CLK_EN |
1026 MICRO_CLK_EN) != (reg & MSCC_DW8051_VLD_MASK)) {
1027 ret = false;
1028 goto out;
1029 }
1030
1031 ret = true;
1032 out:
1033 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1034
1035 return ret;
1036 }
1037
1038 /* bus->mdio_lock should be locked when using this function */
vsc8574_config_pre_init(struct phy_device * phydev)1039 static int vsc8574_config_pre_init(struct phy_device *phydev)
1040 {
1041 static const struct reg_val pre_init1[] = {
1042 {0x0fae, 0x000401bd},
1043 {0x0fac, 0x000f000f},
1044 {0x17a0, 0x00a0f147},
1045 {0x0fe4, 0x00052f54},
1046 {0x1792, 0x0027303d},
1047 {0x07fe, 0x00000704},
1048 {0x0fe0, 0x00060150},
1049 {0x0f82, 0x0012b00a},
1050 {0x0f80, 0x00000d74},
1051 {0x02e0, 0x00000012},
1052 {0x03a2, 0x00050208},
1053 {0x03b2, 0x00009186},
1054 {0x0fb0, 0x000e3700},
1055 {0x1688, 0x00049f81},
1056 {0x0fd2, 0x0000ffff},
1057 {0x168a, 0x00039fa2},
1058 {0x1690, 0x0020640b},
1059 {0x0258, 0x00002220},
1060 {0x025a, 0x00002a20},
1061 {0x025c, 0x00003060},
1062 {0x025e, 0x00003fa0},
1063 {0x03a6, 0x0000e0f0},
1064 {0x0f92, 0x00001489},
1065 {0x16a2, 0x00007000},
1066 {0x16a6, 0x00071448},
1067 {0x16a0, 0x00eeffdd},
1068 {0x0fe8, 0x0091b06c},
1069 {0x0fea, 0x00041600},
1070 {0x16b0, 0x00eeff00},
1071 {0x16b2, 0x00007000},
1072 {0x16b4, 0x00000814},
1073 {0x0f90, 0x00688980},
1074 {0x03a4, 0x0000d8f0},
1075 {0x0fc0, 0x00000400},
1076 {0x07fa, 0x0050100f},
1077 {0x0796, 0x00000003},
1078 {0x07f8, 0x00c3ff98},
1079 {0x0fa4, 0x0018292a},
1080 {0x168c, 0x00d2c46f},
1081 {0x17a2, 0x00000620},
1082 {0x16a4, 0x0013132f},
1083 {0x16a8, 0x00000000},
1084 {0x0ffc, 0x00c0a028},
1085 {0x0fec, 0x00901c09},
1086 {0x0fee, 0x0004a6a1},
1087 {0x0ffe, 0x00b01807},
1088 };
1089 static const struct reg_val pre_init2[] = {
1090 {0x0486, 0x0008a518},
1091 {0x0488, 0x006dc696},
1092 {0x048a, 0x00000912},
1093 {0x048e, 0x00000db6},
1094 {0x049c, 0x00596596},
1095 {0x049e, 0x00000514},
1096 {0x04a2, 0x00410280},
1097 {0x04a4, 0x00000000},
1098 {0x04a6, 0x00000000},
1099 {0x04a8, 0x00000000},
1100 {0x04aa, 0x00000000},
1101 {0x04ae, 0x007df7dd},
1102 {0x04b0, 0x006d95d4},
1103 {0x04b2, 0x00492410},
1104 };
1105 struct device *dev = &phydev->mdio.dev;
1106 const struct firmware *fw;
1107 unsigned int i;
1108 u16 crc, reg;
1109 bool serdes_init;
1110 int ret;
1111
1112 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1113
1114 /* all writes below are broadcasted to all PHYs in the same package */
1115 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
1116 reg |= SMI_BROADCAST_WR_EN;
1117 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
1118
1119 phy_base_write(phydev, MII_VSC85XX_INT_MASK, 0);
1120
1121 /* The below register writes are tweaking analog and electrical
1122 * configuration that were determined through characterization by PHY
1123 * engineers. These don't mean anything more than "these are the best
1124 * values".
1125 */
1126 phy_base_write(phydev, MSCC_PHY_EXT_PHY_CNTL_2, 0x0040);
1127
1128 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
1129
1130 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_20, 0x4320);
1131 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_24, 0x0c00);
1132 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_9, 0x18ca);
1133 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_5, 0x1b20);
1134
1135 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
1136 reg |= TR_CLK_DISABLE;
1137 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
1138
1139 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
1140
1141 for (i = 0; i < ARRAY_SIZE(pre_init1); i++)
1142 vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val);
1143
1144 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_2);
1145
1146 phy_base_write(phydev, MSCC_PHY_CU_PMD_TX_CNTL, 0x028e);
1147
1148 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
1149
1150 for (i = 0; i < ARRAY_SIZE(pre_init2); i++)
1151 vsc8584_csr_write(phydev, pre_init2[i].reg, pre_init2[i].val);
1152
1153 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
1154
1155 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
1156 reg &= ~TR_CLK_DISABLE;
1157 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
1158
1159 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1160
1161 /* end of write broadcasting */
1162 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
1163 reg &= ~SMI_BROADCAST_WR_EN;
1164 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
1165
1166 ret = request_firmware(&fw, MSCC_VSC8574_REVB_INT8051_FW, dev);
1167 if (ret) {
1168 dev_err(dev, "failed to load firmware %s, ret: %d\n",
1169 MSCC_VSC8574_REVB_INT8051_FW, ret);
1170 return ret;
1171 }
1172
1173 /* Add one byte to size for the one added by the patch_fw function */
1174 ret = vsc8584_get_fw_crc(phydev,
1175 MSCC_VSC8574_REVB_INT8051_FW_START_ADDR,
1176 fw->size + 1, &crc);
1177 if (ret)
1178 goto out;
1179
1180 if (crc == MSCC_VSC8574_REVB_INT8051_FW_CRC) {
1181 serdes_init = vsc8574_is_serdes_init(phydev);
1182
1183 if (!serdes_init) {
1184 ret = vsc8584_micro_assert_reset(phydev);
1185 if (ret) {
1186 dev_err(dev,
1187 "%s: failed to assert reset of micro\n",
1188 __func__);
1189 goto out;
1190 }
1191 }
1192 } else {
1193 dev_dbg(dev, "FW CRC is not the expected one, patching FW\n");
1194
1195 serdes_init = false;
1196
1197 if (vsc8584_patch_fw(phydev, fw))
1198 dev_warn(dev,
1199 "failed to patch FW, expect non-optimal device\n");
1200 }
1201
1202 if (!serdes_init) {
1203 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1204 MSCC_PHY_PAGE_EXTENDED_GPIO);
1205
1206 phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), 0x3eb7);
1207 phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), 0x4012);
1208 phy_base_write(phydev, MSCC_INT_MEM_CNTL,
1209 EN_PATCH_RAM_TRAP_ADDR(1));
1210
1211 vsc8584_micro_deassert_reset(phydev, false);
1212
1213 /* Add one byte to size for the one added by the patch_fw
1214 * function
1215 */
1216 ret = vsc8584_get_fw_crc(phydev,
1217 MSCC_VSC8574_REVB_INT8051_FW_START_ADDR,
1218 fw->size + 1, &crc);
1219 if (ret)
1220 goto out;
1221
1222 if (crc != MSCC_VSC8574_REVB_INT8051_FW_CRC)
1223 dev_warn(dev,
1224 "FW CRC after patching is not the expected one, expect non-optimal device\n");
1225 }
1226
1227 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1228 MSCC_PHY_PAGE_EXTENDED_GPIO);
1229
1230 ret = vsc8584_cmd(phydev, PROC_CMD_1588_DEFAULT_INIT |
1231 PROC_CMD_PHY_INIT);
1232
1233 out:
1234 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1235
1236 release_firmware(fw);
1237
1238 return ret;
1239 }
1240
1241 /* Access LCPLL Cfg_2 */
vsc8584_pll5g_cfg2_wr(struct phy_device * phydev,bool disable_fsm)1242 static void vsc8584_pll5g_cfg2_wr(struct phy_device *phydev,
1243 bool disable_fsm)
1244 {
1245 u32 rd_dat;
1246
1247 rd_dat = vsc85xx_csr_read(phydev, MACRO_CTRL, PHY_S6G_PLL5G_CFG2);
1248 rd_dat &= ~BIT(PHY_S6G_CFG2_FSM_DIS);
1249 rd_dat |= (disable_fsm << PHY_S6G_CFG2_FSM_DIS);
1250 vsc85xx_csr_write(phydev, MACRO_CTRL, PHY_S6G_PLL5G_CFG2, rd_dat);
1251 }
1252
1253 /* trigger a read to the spcified MCB */
vsc8584_mcb_rd_trig(struct phy_device * phydev,u32 mcb_reg_addr,u8 mcb_slave_num)1254 static int vsc8584_mcb_rd_trig(struct phy_device *phydev,
1255 u32 mcb_reg_addr, u8 mcb_slave_num)
1256 {
1257 u32 rd_dat = 0;
1258
1259 /* read MCB */
1260 vsc85xx_csr_write(phydev, MACRO_CTRL, mcb_reg_addr,
1261 (0x40000000 | (1L << mcb_slave_num)));
1262
1263 return read_poll_timeout(vsc85xx_csr_read, rd_dat,
1264 !(rd_dat & 0x40000000),
1265 4000, 200000, 0,
1266 phydev, MACRO_CTRL, mcb_reg_addr);
1267 }
1268
1269 /* trigger a write to the spcified MCB */
vsc8584_mcb_wr_trig(struct phy_device * phydev,u32 mcb_reg_addr,u8 mcb_slave_num)1270 static int vsc8584_mcb_wr_trig(struct phy_device *phydev,
1271 u32 mcb_reg_addr,
1272 u8 mcb_slave_num)
1273 {
1274 u32 rd_dat = 0;
1275
1276 /* write back MCB */
1277 vsc85xx_csr_write(phydev, MACRO_CTRL, mcb_reg_addr,
1278 (0x80000000 | (1L << mcb_slave_num)));
1279
1280 return read_poll_timeout(vsc85xx_csr_read, rd_dat,
1281 !(rd_dat & 0x80000000),
1282 4000, 200000, 0,
1283 phydev, MACRO_CTRL, mcb_reg_addr);
1284 }
1285
1286 /* Sequence to Reset LCPLL for the VIPER and ELISE PHY */
vsc8584_pll5g_reset(struct phy_device * phydev)1287 static int vsc8584_pll5g_reset(struct phy_device *phydev)
1288 {
1289 bool dis_fsm;
1290 int ret = 0;
1291
1292 ret = vsc8584_mcb_rd_trig(phydev, 0x11, 0);
1293 if (ret < 0)
1294 goto done;
1295 dis_fsm = 1;
1296
1297 /* Reset LCPLL */
1298 vsc8584_pll5g_cfg2_wr(phydev, dis_fsm);
1299
1300 /* write back LCPLL MCB */
1301 ret = vsc8584_mcb_wr_trig(phydev, 0x11, 0);
1302 if (ret < 0)
1303 goto done;
1304
1305 /* 10 mSec sleep while LCPLL is hold in reset */
1306 usleep_range(10000, 20000);
1307
1308 /* read LCPLL MCB into CSRs */
1309 ret = vsc8584_mcb_rd_trig(phydev, 0x11, 0);
1310 if (ret < 0)
1311 goto done;
1312 dis_fsm = 0;
1313
1314 /* Release the Reset of LCPLL */
1315 vsc8584_pll5g_cfg2_wr(phydev, dis_fsm);
1316
1317 /* write back LCPLL MCB */
1318 ret = vsc8584_mcb_wr_trig(phydev, 0x11, 0);
1319 if (ret < 0)
1320 goto done;
1321
1322 usleep_range(110000, 200000);
1323 done:
1324 return ret;
1325 }
1326
1327 /* bus->mdio_lock should be locked when using this function */
vsc8584_config_pre_init(struct phy_device * phydev)1328 static int vsc8584_config_pre_init(struct phy_device *phydev)
1329 {
1330 static const struct reg_val pre_init1[] = {
1331 {0x07fa, 0x0050100f},
1332 {0x1688, 0x00049f81},
1333 {0x0f90, 0x00688980},
1334 {0x03a4, 0x0000d8f0},
1335 {0x0fc0, 0x00000400},
1336 {0x0f82, 0x0012b002},
1337 {0x1686, 0x00000004},
1338 {0x168c, 0x00d2c46f},
1339 {0x17a2, 0x00000620},
1340 {0x16a0, 0x00eeffdd},
1341 {0x16a6, 0x00071448},
1342 {0x16a4, 0x0013132f},
1343 {0x16a8, 0x00000000},
1344 {0x0ffc, 0x00c0a028},
1345 {0x0fe8, 0x0091b06c},
1346 {0x0fea, 0x00041600},
1347 {0x0f80, 0x00fffaff},
1348 {0x0fec, 0x00901809},
1349 {0x0ffe, 0x00b01007},
1350 {0x16b0, 0x00eeff00},
1351 {0x16b2, 0x00007000},
1352 {0x16b4, 0x00000814},
1353 };
1354 static const struct reg_val pre_init2[] = {
1355 {0x0486, 0x0008a518},
1356 {0x0488, 0x006dc696},
1357 {0x048a, 0x00000912},
1358 };
1359 const struct firmware *fw;
1360 struct device *dev = &phydev->mdio.dev;
1361 unsigned int i;
1362 u16 crc, reg;
1363 int ret;
1364
1365 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1366
1367 /* all writes below are broadcasted to all PHYs in the same package */
1368 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
1369 reg |= SMI_BROADCAST_WR_EN;
1370 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
1371
1372 phy_base_write(phydev, MII_VSC85XX_INT_MASK, 0);
1373
1374 reg = phy_base_read(phydev, MSCC_PHY_BYPASS_CONTROL);
1375 reg |= PARALLEL_DET_IGNORE_ADVERTISED;
1376 phy_base_write(phydev, MSCC_PHY_BYPASS_CONTROL, reg);
1377
1378 /* The below register writes are tweaking analog and electrical
1379 * configuration that were determined through characterization by PHY
1380 * engineers. These don't mean anything more than "these are the best
1381 * values".
1382 */
1383 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_3);
1384
1385 phy_base_write(phydev, MSCC_PHY_SERDES_TX_CRC_ERR_CNT, 0x2000);
1386
1387 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
1388
1389 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_5, 0x1f20);
1390
1391 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
1392 reg |= TR_CLK_DISABLE;
1393 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
1394
1395 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
1396
1397 phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(0x2fa4));
1398
1399 reg = phy_base_read(phydev, MSCC_PHY_TR_MSB);
1400 reg &= ~0x007f;
1401 reg |= 0x0019;
1402 phy_base_write(phydev, MSCC_PHY_TR_MSB, reg);
1403
1404 phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(0x0fa4));
1405
1406 for (i = 0; i < ARRAY_SIZE(pre_init1); i++)
1407 vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val);
1408
1409 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_2);
1410
1411 phy_base_write(phydev, MSCC_PHY_CU_PMD_TX_CNTL, 0x028e);
1412
1413 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
1414
1415 for (i = 0; i < ARRAY_SIZE(pre_init2); i++)
1416 vsc8584_csr_write(phydev, pre_init2[i].reg, pre_init2[i].val);
1417
1418 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
1419
1420 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
1421 reg &= ~TR_CLK_DISABLE;
1422 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
1423
1424 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1425
1426 /* end of write broadcasting */
1427 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
1428 reg &= ~SMI_BROADCAST_WR_EN;
1429 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
1430
1431 ret = request_firmware(&fw, MSCC_VSC8584_REVB_INT8051_FW, dev);
1432 if (ret) {
1433 dev_err(dev, "failed to load firmware %s, ret: %d\n",
1434 MSCC_VSC8584_REVB_INT8051_FW, ret);
1435 return ret;
1436 }
1437
1438 /* Add one byte to size for the one added by the patch_fw function */
1439 ret = vsc8584_get_fw_crc(phydev,
1440 MSCC_VSC8584_REVB_INT8051_FW_START_ADDR,
1441 fw->size + 1, &crc);
1442 if (ret)
1443 goto out;
1444
1445 if (crc != MSCC_VSC8584_REVB_INT8051_FW_CRC) {
1446 dev_dbg(dev, "FW CRC is not the expected one, patching FW\n");
1447 if (vsc8584_patch_fw(phydev, fw))
1448 dev_warn(dev,
1449 "failed to patch FW, expect non-optimal device\n");
1450 }
1451
1452 vsc8584_micro_deassert_reset(phydev, false);
1453
1454 /* Add one byte to size for the one added by the patch_fw function */
1455 ret = vsc8584_get_fw_crc(phydev,
1456 MSCC_VSC8584_REVB_INT8051_FW_START_ADDR,
1457 fw->size + 1, &crc);
1458 if (ret)
1459 goto out;
1460
1461 if (crc != MSCC_VSC8584_REVB_INT8051_FW_CRC)
1462 dev_warn(dev,
1463 "FW CRC after patching is not the expected one, expect non-optimal device\n");
1464
1465 ret = vsc8584_micro_assert_reset(phydev);
1466 if (ret)
1467 goto out;
1468
1469 vsc8584_micro_deassert_reset(phydev, true);
1470
1471 out:
1472 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1473
1474 release_firmware(fw);
1475
1476 return ret;
1477 }
1478
vsc8584_get_base_addr(struct phy_device * phydev)1479 static void vsc8584_get_base_addr(struct phy_device *phydev)
1480 {
1481 struct vsc8531_private *vsc8531 = phydev->priv;
1482 u16 val, addr;
1483
1484 phy_lock_mdio_bus(phydev);
1485 __phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);
1486
1487 addr = __phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_4);
1488 addr >>= PHY_CNTL_4_ADDR_POS;
1489
1490 val = __phy_read(phydev, MSCC_PHY_ACTIPHY_CNTL);
1491
1492 __phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1493 phy_unlock_mdio_bus(phydev);
1494
1495 /* In the package, there are two pairs of PHYs (PHY0 + PHY2 and
1496 * PHY1 + PHY3). The first PHY of each pair (PHY0 and PHY1) is
1497 * the base PHY for timestamping operations.
1498 */
1499 vsc8531->ts_base_addr = phydev->mdio.addr;
1500 vsc8531->ts_base_phy = addr;
1501
1502 if (val & PHY_ADDR_REVERSED) {
1503 vsc8531->base_addr = phydev->mdio.addr + addr;
1504 if (addr > 1) {
1505 vsc8531->ts_base_addr += 2;
1506 vsc8531->ts_base_phy += 2;
1507 }
1508 } else {
1509 vsc8531->base_addr = phydev->mdio.addr - addr;
1510 if (addr > 1) {
1511 vsc8531->ts_base_addr -= 2;
1512 vsc8531->ts_base_phy -= 2;
1513 }
1514 }
1515
1516 vsc8531->addr = addr;
1517 }
1518
vsc8584_config_init(struct phy_device * phydev)1519 static int vsc8584_config_init(struct phy_device *phydev)
1520 {
1521 struct vsc8531_private *vsc8531 = phydev->priv;
1522 int ret, i;
1523 u16 val;
1524
1525 phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
1526
1527 phy_lock_mdio_bus(phydev);
1528
1529 /* Some parts of the init sequence are identical for every PHY in the
1530 * package. Some parts are modifying the GPIO register bank which is a
1531 * set of registers that are affecting all PHYs, a few resetting the
1532 * microprocessor common to all PHYs. The CRC check responsible of the
1533 * checking the firmware within the 8051 microprocessor can only be
1534 * accessed via the PHY whose internal address in the package is 0.
1535 * All PHYs' interrupts mask register has to be zeroed before enabling
1536 * any PHY's interrupt in this register.
1537 * For all these reasons, we need to do the init sequence once and only
1538 * once whatever is the first PHY in the package that is initialized and
1539 * do the correct init sequence for all PHYs that are package-critical
1540 * in this pre-init function.
1541 */
1542 if (phy_package_init_once(phydev)) {
1543 /* The following switch statement assumes that the lowest
1544 * nibble of the phy_id_mask is always 0. This works because
1545 * the lowest nibble of the PHY_ID's below are also 0.
1546 */
1547 WARN_ON(phydev->drv->phy_id_mask & 0xf);
1548
1549 switch (phydev->phy_id & phydev->drv->phy_id_mask) {
1550 case PHY_ID_VSC8504:
1551 case PHY_ID_VSC8552:
1552 case PHY_ID_VSC8572:
1553 case PHY_ID_VSC8574:
1554 ret = vsc8574_config_pre_init(phydev);
1555 break;
1556 case PHY_ID_VSC856X:
1557 case PHY_ID_VSC8575:
1558 case PHY_ID_VSC8582:
1559 case PHY_ID_VSC8584:
1560 ret = vsc8584_config_pre_init(phydev);
1561 break;
1562 default:
1563 ret = -EINVAL;
1564 break;
1565 }
1566
1567 if (ret)
1568 goto err;
1569 }
1570
1571 ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1572 MSCC_PHY_PAGE_EXTENDED_GPIO);
1573 if (ret)
1574 goto err;
1575
1576 val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK);
1577 val &= ~MAC_CFG_MASK;
1578 if (phydev->interface == PHY_INTERFACE_MODE_QSGMII) {
1579 val |= MAC_CFG_QSGMII;
1580 } else if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
1581 val |= MAC_CFG_SGMII;
1582 } else if (phy_interface_is_rgmii(phydev)) {
1583 val |= MAC_CFG_RGMII;
1584 } else {
1585 ret = -EINVAL;
1586 goto err;
1587 }
1588
1589 ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val);
1590 if (ret)
1591 goto err;
1592
1593 ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1594 MSCC_PHY_PAGE_STANDARD);
1595 if (ret)
1596 goto err;
1597
1598 if (!phy_interface_is_rgmii(phydev)) {
1599 val = PROC_CMD_MCB_ACCESS_MAC_CONF | PROC_CMD_RST_CONF_PORT |
1600 PROC_CMD_READ_MOD_WRITE_PORT;
1601 if (phydev->interface == PHY_INTERFACE_MODE_QSGMII)
1602 val |= PROC_CMD_QSGMII_MAC;
1603 else
1604 val |= PROC_CMD_SGMII_MAC;
1605
1606 ret = vsc8584_cmd(phydev, val);
1607 if (ret)
1608 goto err;
1609
1610 usleep_range(10000, 20000);
1611 }
1612
1613 /* Disable SerDes for 100Base-FX */
1614 ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF |
1615 PROC_CMD_FIBER_PORT(vsc8531->addr) |
1616 PROC_CMD_FIBER_DISABLE |
1617 PROC_CMD_READ_MOD_WRITE_PORT |
1618 PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_100BASE_FX);
1619 if (ret)
1620 goto err;
1621
1622 /* Disable SerDes for 1000Base-X */
1623 ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF |
1624 PROC_CMD_FIBER_PORT(vsc8531->addr) |
1625 PROC_CMD_FIBER_DISABLE |
1626 PROC_CMD_READ_MOD_WRITE_PORT |
1627 PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_1000BASE_X);
1628 if (ret)
1629 goto err;
1630
1631 phy_unlock_mdio_bus(phydev);
1632
1633 ret = vsc8584_macsec_init(phydev);
1634 if (ret)
1635 return ret;
1636
1637 ret = vsc8584_ptp_init(phydev);
1638 if (ret)
1639 return ret;
1640
1641 val = phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_1);
1642 val &= ~(MEDIA_OP_MODE_MASK | VSC8584_MAC_IF_SELECTION_MASK);
1643 val |= (MEDIA_OP_MODE_COPPER << MEDIA_OP_MODE_POS) |
1644 (VSC8584_MAC_IF_SELECTION_SGMII << VSC8584_MAC_IF_SELECTION_POS);
1645 ret = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, val);
1646 if (ret)
1647 return ret;
1648
1649 if (phy_interface_is_rgmii(phydev)) {
1650 ret = vsc85xx_rgmii_set_skews(phydev, VSC8572_RGMII_CNTL,
1651 VSC8572_RGMII_RX_DELAY_MASK,
1652 VSC8572_RGMII_TX_DELAY_MASK);
1653 if (ret)
1654 return ret;
1655 }
1656
1657 ret = genphy_soft_reset(phydev);
1658 if (ret)
1659 return ret;
1660
1661 for (i = 0; i < vsc8531->nleds; i++) {
1662 ret = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]);
1663 if (ret)
1664 return ret;
1665 }
1666
1667 return 0;
1668
1669 err:
1670 phy_unlock_mdio_bus(phydev);
1671 return ret;
1672 }
1673
vsc8584_handle_interrupt(struct phy_device * phydev)1674 static irqreturn_t vsc8584_handle_interrupt(struct phy_device *phydev)
1675 {
1676 irqreturn_t ret;
1677 int irq_status;
1678
1679 irq_status = phy_read(phydev, MII_VSC85XX_INT_STATUS);
1680 if (irq_status < 0)
1681 return IRQ_NONE;
1682
1683 /* Timestamping IRQ does not set a bit in the global INT_STATUS, so
1684 * irq_status would be 0.
1685 */
1686 ret = vsc8584_handle_ts_interrupt(phydev);
1687 if (!(irq_status & MII_VSC85XX_INT_MASK_MASK))
1688 return ret;
1689
1690 if (irq_status & MII_VSC85XX_INT_MASK_EXT)
1691 vsc8584_handle_macsec_interrupt(phydev);
1692
1693 if (irq_status & MII_VSC85XX_INT_MASK_LINK_CHG)
1694 phy_mac_interrupt(phydev);
1695
1696 return IRQ_HANDLED;
1697 }
1698
vsc85xx_config_init(struct phy_device * phydev)1699 static int vsc85xx_config_init(struct phy_device *phydev)
1700 {
1701 int rc, i, phy_id;
1702 struct vsc8531_private *vsc8531 = phydev->priv;
1703
1704 rc = vsc85xx_default_config(phydev);
1705 if (rc)
1706 return rc;
1707
1708 rc = vsc85xx_mac_if_set(phydev, phydev->interface);
1709 if (rc)
1710 return rc;
1711
1712 rc = vsc85xx_edge_rate_cntl_set(phydev, vsc8531->rate_magic);
1713 if (rc)
1714 return rc;
1715
1716 phy_id = phydev->drv->phy_id & phydev->drv->phy_id_mask;
1717 if (PHY_ID_VSC8531 == phy_id || PHY_ID_VSC8541 == phy_id ||
1718 PHY_ID_VSC8530 == phy_id || PHY_ID_VSC8540 == phy_id) {
1719 rc = vsc8531_pre_init_seq_set(phydev);
1720 if (rc)
1721 return rc;
1722 }
1723
1724 rc = vsc85xx_eee_init_seq_set(phydev);
1725 if (rc)
1726 return rc;
1727
1728 for (i = 0; i < vsc8531->nleds; i++) {
1729 rc = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]);
1730 if (rc)
1731 return rc;
1732 }
1733
1734 return 0;
1735 }
1736
vsc8584_did_interrupt(struct phy_device * phydev)1737 static int vsc8584_did_interrupt(struct phy_device *phydev)
1738 {
1739 int rc = 0;
1740
1741 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
1742 rc = phy_read(phydev, MII_VSC85XX_INT_STATUS);
1743
1744 return (rc < 0) ? 0 : rc & MII_VSC85XX_INT_MASK_MASK;
1745 }
1746
vsc8514_config_pre_init(struct phy_device * phydev)1747 static int vsc8514_config_pre_init(struct phy_device *phydev)
1748 {
1749 /* These are the settings to override the silicon default
1750 * values to handle hardware performance of PHY. They
1751 * are set at Power-On state and remain until PHY Reset.
1752 */
1753 static const struct reg_val pre_init1[] = {
1754 {0x0f90, 0x00688980},
1755 {0x0786, 0x00000003},
1756 {0x07fa, 0x0050100f},
1757 {0x0f82, 0x0012b002},
1758 {0x1686, 0x00000004},
1759 {0x168c, 0x00d2c46f},
1760 {0x17a2, 0x00000620},
1761 {0x16a0, 0x00eeffdd},
1762 {0x16a6, 0x00071448},
1763 {0x16a4, 0x0013132f},
1764 {0x16a8, 0x00000000},
1765 {0x0ffc, 0x00c0a028},
1766 {0x0fe8, 0x0091b06c},
1767 {0x0fea, 0x00041600},
1768 {0x0f80, 0x00fffaff},
1769 {0x0fec, 0x00901809},
1770 {0x0ffe, 0x00b01007},
1771 {0x16b0, 0x00eeff00},
1772 {0x16b2, 0x00007000},
1773 {0x16b4, 0x00000814},
1774 };
1775 struct device *dev = &phydev->mdio.dev;
1776 unsigned int i;
1777 u16 reg;
1778 int ret;
1779
1780 ret = vsc8584_pll5g_reset(phydev);
1781 if (ret < 0) {
1782 dev_err(dev, "failed LCPLL reset, ret: %d\n", ret);
1783 return ret;
1784 }
1785
1786 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1787
1788 /* all writes below are broadcasted to all PHYs in the same package */
1789 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
1790 reg |= SMI_BROADCAST_WR_EN;
1791 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
1792
1793 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
1794
1795 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
1796 reg |= BIT(15);
1797 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
1798
1799 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
1800
1801 for (i = 0; i < ARRAY_SIZE(pre_init1); i++)
1802 vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val);
1803
1804 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
1805
1806 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
1807 reg &= ~BIT(15);
1808 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
1809
1810 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1811
1812 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
1813 reg &= ~SMI_BROADCAST_WR_EN;
1814 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
1815
1816 return 0;
1817 }
1818
__phy_write_mcb_s6g(struct phy_device * phydev,u32 reg,u8 mcb,u32 op)1819 static int __phy_write_mcb_s6g(struct phy_device *phydev, u32 reg, u8 mcb,
1820 u32 op)
1821 {
1822 unsigned long deadline;
1823 u32 val;
1824 int ret;
1825
1826 ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET, reg,
1827 op | (1 << mcb));
1828 if (ret)
1829 return -EINVAL;
1830
1831 deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
1832 do {
1833 usleep_range(500, 1000);
1834 val = vsc85xx_csr_read(phydev, PHY_MCB_TARGET, reg);
1835
1836 if (val == 0xffffffff)
1837 return -EIO;
1838
1839 } while (time_before(jiffies, deadline) && (val & op));
1840
1841 if (val & op)
1842 return -ETIMEDOUT;
1843
1844 return 0;
1845 }
1846
1847 /* Trigger a read to the specified MCB */
phy_update_mcb_s6g(struct phy_device * phydev,u32 reg,u8 mcb)1848 static int phy_update_mcb_s6g(struct phy_device *phydev, u32 reg, u8 mcb)
1849 {
1850 return __phy_write_mcb_s6g(phydev, reg, mcb, PHY_MCB_S6G_READ);
1851 }
1852
1853 /* Trigger a write to the specified MCB */
phy_commit_mcb_s6g(struct phy_device * phydev,u32 reg,u8 mcb)1854 static int phy_commit_mcb_s6g(struct phy_device *phydev, u32 reg, u8 mcb)
1855 {
1856 return __phy_write_mcb_s6g(phydev, reg, mcb, PHY_MCB_S6G_WRITE);
1857 }
1858
vsc8514_config_init(struct phy_device * phydev)1859 static int vsc8514_config_init(struct phy_device *phydev)
1860 {
1861 struct vsc8531_private *vsc8531 = phydev->priv;
1862 unsigned long deadline;
1863 int ret, i;
1864 u16 val;
1865 u32 reg;
1866
1867 phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
1868
1869 phy_lock_mdio_bus(phydev);
1870
1871 /* Some parts of the init sequence are identical for every PHY in the
1872 * package. Some parts are modifying the GPIO register bank which is a
1873 * set of registers that are affecting all PHYs, a few resetting the
1874 * microprocessor common to all PHYs.
1875 * All PHYs' interrupts mask register has to be zeroed before enabling
1876 * any PHY's interrupt in this register.
1877 * For all these reasons, we need to do the init sequence once and only
1878 * once whatever is the first PHY in the package that is initialized and
1879 * do the correct init sequence for all PHYs that are package-critical
1880 * in this pre-init function.
1881 */
1882 if (phy_package_init_once(phydev))
1883 vsc8514_config_pre_init(phydev);
1884
1885 ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1886 MSCC_PHY_PAGE_EXTENDED_GPIO);
1887 if (ret)
1888 goto err;
1889
1890 val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK);
1891
1892 val &= ~MAC_CFG_MASK;
1893 val |= MAC_CFG_QSGMII;
1894 ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val);
1895 if (ret)
1896 goto err;
1897
1898 ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1899 MSCC_PHY_PAGE_STANDARD);
1900 if (ret)
1901 goto err;
1902
1903 ret = vsc8584_cmd(phydev,
1904 PROC_CMD_MCB_ACCESS_MAC_CONF |
1905 PROC_CMD_RST_CONF_PORT |
1906 PROC_CMD_READ_MOD_WRITE_PORT | PROC_CMD_QSGMII_MAC);
1907 if (ret)
1908 goto err;
1909
1910 /* 6g mcb */
1911 phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
1912 /* lcpll mcb */
1913 phy_update_mcb_s6g(phydev, PHY_S6G_LCPLL_CFG, 0);
1914 /* pll5gcfg0 */
1915 ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET,
1916 PHY_S6G_PLL5G_CFG0, 0x7036f145);
1917 if (ret)
1918 goto err;
1919
1920 phy_commit_mcb_s6g(phydev, PHY_S6G_LCPLL_CFG, 0);
1921 /* pllcfg */
1922 ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET,
1923 PHY_S6G_PLL_CFG,
1924 (3 << PHY_S6G_PLL_ENA_OFFS_POS) |
1925 (120 << PHY_S6G_PLL_FSM_CTRL_DATA_POS)
1926 | (0 << PHY_S6G_PLL_FSM_ENA_POS));
1927 if (ret)
1928 goto err;
1929
1930 /* commoncfg */
1931 ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET,
1932 PHY_S6G_COMMON_CFG,
1933 (0 << PHY_S6G_SYS_RST_POS) |
1934 (0 << PHY_S6G_ENA_LANE_POS) |
1935 (0 << PHY_S6G_ENA_LOOP_POS) |
1936 (0 << PHY_S6G_QRATE_POS) |
1937 (3 << PHY_S6G_IF_MODE_POS));
1938 if (ret)
1939 goto err;
1940
1941 /* misccfg */
1942 ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET,
1943 PHY_S6G_MISC_CFG, 1);
1944 if (ret)
1945 goto err;
1946
1947 /* gpcfg */
1948 ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET,
1949 PHY_S6G_GPC_CFG, 768);
1950 if (ret)
1951 goto err;
1952
1953 phy_commit_mcb_s6g(phydev, PHY_S6G_DFT_CFG2, 0);
1954
1955 deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
1956 do {
1957 usleep_range(500, 1000);
1958 phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG,
1959 0); /* read 6G MCB into CSRs */
1960 reg = vsc85xx_csr_read(phydev, PHY_MCB_TARGET,
1961 PHY_S6G_PLL_STATUS);
1962 if (reg == 0xffffffff) {
1963 phy_unlock_mdio_bus(phydev);
1964 return -EIO;
1965 }
1966
1967 } while (time_before(jiffies, deadline) && (reg & BIT(12)));
1968
1969 if (reg & BIT(12)) {
1970 phy_unlock_mdio_bus(phydev);
1971 return -ETIMEDOUT;
1972 }
1973
1974 /* misccfg */
1975 ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET,
1976 PHY_S6G_MISC_CFG, 0);
1977 if (ret)
1978 goto err;
1979
1980 phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
1981
1982 deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
1983 do {
1984 usleep_range(500, 1000);
1985 phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG,
1986 0); /* read 6G MCB into CSRs */
1987 reg = vsc85xx_csr_read(phydev, PHY_MCB_TARGET,
1988 PHY_S6G_IB_STATUS0);
1989 if (reg == 0xffffffff) {
1990 phy_unlock_mdio_bus(phydev);
1991 return -EIO;
1992 }
1993
1994 } while (time_before(jiffies, deadline) && !(reg & BIT(8)));
1995
1996 if (!(reg & BIT(8))) {
1997 phy_unlock_mdio_bus(phydev);
1998 return -ETIMEDOUT;
1999 }
2000
2001 phy_unlock_mdio_bus(phydev);
2002
2003 ret = phy_modify(phydev, MSCC_PHY_EXT_PHY_CNTL_1, MEDIA_OP_MODE_MASK,
2004 MEDIA_OP_MODE_COPPER << MEDIA_OP_MODE_POS);
2005
2006 if (ret)
2007 return ret;
2008
2009 ret = genphy_soft_reset(phydev);
2010
2011 if (ret)
2012 return ret;
2013
2014 for (i = 0; i < vsc8531->nleds; i++) {
2015 ret = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]);
2016 if (ret)
2017 return ret;
2018 }
2019
2020 return ret;
2021
2022 err:
2023 phy_unlock_mdio_bus(phydev);
2024 return ret;
2025 }
2026
vsc85xx_ack_interrupt(struct phy_device * phydev)2027 static int vsc85xx_ack_interrupt(struct phy_device *phydev)
2028 {
2029 int rc = 0;
2030
2031 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
2032 rc = phy_read(phydev, MII_VSC85XX_INT_STATUS);
2033
2034 return (rc < 0) ? rc : 0;
2035 }
2036
vsc85xx_config_intr(struct phy_device * phydev)2037 static int vsc85xx_config_intr(struct phy_device *phydev)
2038 {
2039 int rc;
2040
2041 if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
2042 vsc8584_config_macsec_intr(phydev);
2043 vsc8584_config_ts_intr(phydev);
2044
2045 rc = phy_write(phydev, MII_VSC85XX_INT_MASK,
2046 MII_VSC85XX_INT_MASK_MASK);
2047 } else {
2048 rc = phy_write(phydev, MII_VSC85XX_INT_MASK, 0);
2049 if (rc < 0)
2050 return rc;
2051 rc = phy_read(phydev, MII_VSC85XX_INT_STATUS);
2052 }
2053
2054 return rc;
2055 }
2056
vsc85xx_config_aneg(struct phy_device * phydev)2057 static int vsc85xx_config_aneg(struct phy_device *phydev)
2058 {
2059 int rc;
2060
2061 rc = vsc85xx_mdix_set(phydev, phydev->mdix_ctrl);
2062 if (rc < 0)
2063 return rc;
2064
2065 return genphy_config_aneg(phydev);
2066 }
2067
vsc85xx_read_status(struct phy_device * phydev)2068 static int vsc85xx_read_status(struct phy_device *phydev)
2069 {
2070 int rc;
2071
2072 rc = vsc85xx_mdix_get(phydev, &phydev->mdix);
2073 if (rc < 0)
2074 return rc;
2075
2076 return genphy_read_status(phydev);
2077 }
2078
vsc8514_probe(struct phy_device * phydev)2079 static int vsc8514_probe(struct phy_device *phydev)
2080 {
2081 struct vsc8531_private *vsc8531;
2082 u32 default_mode[4] = {VSC8531_LINK_1000_ACTIVITY,
2083 VSC8531_LINK_100_ACTIVITY, VSC8531_LINK_ACTIVITY,
2084 VSC8531_DUPLEX_COLLISION};
2085
2086 vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL);
2087 if (!vsc8531)
2088 return -ENOMEM;
2089
2090 phydev->priv = vsc8531;
2091
2092 vsc8584_get_base_addr(phydev);
2093 devm_phy_package_join(&phydev->mdio.dev, phydev,
2094 vsc8531->base_addr, 0);
2095
2096 vsc8531->nleds = 4;
2097 vsc8531->supp_led_modes = VSC85XX_SUPP_LED_MODES;
2098 vsc8531->hw_stats = vsc85xx_hw_stats;
2099 vsc8531->nstats = ARRAY_SIZE(vsc85xx_hw_stats);
2100 vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats,
2101 sizeof(u64), GFP_KERNEL);
2102 if (!vsc8531->stats)
2103 return -ENOMEM;
2104
2105 return vsc85xx_dt_led_modes_get(phydev, default_mode);
2106 }
2107
vsc8574_probe(struct phy_device * phydev)2108 static int vsc8574_probe(struct phy_device *phydev)
2109 {
2110 struct vsc8531_private *vsc8531;
2111 u32 default_mode[4] = {VSC8531_LINK_1000_ACTIVITY,
2112 VSC8531_LINK_100_ACTIVITY, VSC8531_LINK_ACTIVITY,
2113 VSC8531_DUPLEX_COLLISION};
2114
2115 vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL);
2116 if (!vsc8531)
2117 return -ENOMEM;
2118
2119 phydev->priv = vsc8531;
2120
2121 vsc8584_get_base_addr(phydev);
2122 devm_phy_package_join(&phydev->mdio.dev, phydev,
2123 vsc8531->base_addr, 0);
2124
2125 vsc8531->nleds = 4;
2126 vsc8531->supp_led_modes = VSC8584_SUPP_LED_MODES;
2127 vsc8531->hw_stats = vsc8584_hw_stats;
2128 vsc8531->nstats = ARRAY_SIZE(vsc8584_hw_stats);
2129 vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats,
2130 sizeof(u64), GFP_KERNEL);
2131 if (!vsc8531->stats)
2132 return -ENOMEM;
2133
2134 return vsc85xx_dt_led_modes_get(phydev, default_mode);
2135 }
2136
vsc8584_probe(struct phy_device * phydev)2137 static int vsc8584_probe(struct phy_device *phydev)
2138 {
2139 struct vsc8531_private *vsc8531;
2140 u32 default_mode[4] = {VSC8531_LINK_1000_ACTIVITY,
2141 VSC8531_LINK_100_ACTIVITY, VSC8531_LINK_ACTIVITY,
2142 VSC8531_DUPLEX_COLLISION};
2143 int ret;
2144
2145 if ((phydev->phy_id & MSCC_DEV_REV_MASK) != VSC8584_REVB) {
2146 dev_err(&phydev->mdio.dev, "Only VSC8584 revB is supported.\n");
2147 return -ENOTSUPP;
2148 }
2149
2150 vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL);
2151 if (!vsc8531)
2152 return -ENOMEM;
2153
2154 phydev->priv = vsc8531;
2155
2156 vsc8584_get_base_addr(phydev);
2157 devm_phy_package_join(&phydev->mdio.dev, phydev, vsc8531->base_addr,
2158 sizeof(struct vsc85xx_shared_private));
2159
2160 vsc8531->nleds = 4;
2161 vsc8531->supp_led_modes = VSC8584_SUPP_LED_MODES;
2162 vsc8531->hw_stats = vsc8584_hw_stats;
2163 vsc8531->nstats = ARRAY_SIZE(vsc8584_hw_stats);
2164 vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats,
2165 sizeof(u64), GFP_KERNEL);
2166 if (!vsc8531->stats)
2167 return -ENOMEM;
2168
2169 if (phy_package_probe_once(phydev)) {
2170 ret = vsc8584_ptp_probe_once(phydev);
2171 if (ret)
2172 return ret;
2173 }
2174
2175 ret = vsc8584_ptp_probe(phydev);
2176 if (ret)
2177 return ret;
2178
2179 return vsc85xx_dt_led_modes_get(phydev, default_mode);
2180 }
2181
vsc85xx_probe(struct phy_device * phydev)2182 static int vsc85xx_probe(struct phy_device *phydev)
2183 {
2184 struct vsc8531_private *vsc8531;
2185 int rate_magic;
2186 u32 default_mode[2] = {VSC8531_LINK_1000_ACTIVITY,
2187 VSC8531_LINK_100_ACTIVITY};
2188
2189 rate_magic = vsc85xx_edge_rate_magic_get(phydev);
2190 if (rate_magic < 0)
2191 return rate_magic;
2192
2193 vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL);
2194 if (!vsc8531)
2195 return -ENOMEM;
2196
2197 phydev->priv = vsc8531;
2198
2199 vsc8531->rate_magic = rate_magic;
2200 vsc8531->nleds = 2;
2201 vsc8531->supp_led_modes = VSC85XX_SUPP_LED_MODES;
2202 vsc8531->hw_stats = vsc85xx_hw_stats;
2203 vsc8531->nstats = ARRAY_SIZE(vsc85xx_hw_stats);
2204 vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats,
2205 sizeof(u64), GFP_KERNEL);
2206 if (!vsc8531->stats)
2207 return -ENOMEM;
2208
2209 return vsc85xx_dt_led_modes_get(phydev, default_mode);
2210 }
2211
2212 /* Microsemi VSC85xx PHYs */
2213 static struct phy_driver vsc85xx_driver[] = {
2214 {
2215 .phy_id = PHY_ID_VSC8502,
2216 .name = "Microsemi GE VSC8502 SyncE",
2217 .phy_id_mask = 0xfffffff0,
2218 /* PHY_BASIC_FEATURES */
2219 .soft_reset = &genphy_soft_reset,
2220 .config_init = &vsc85xx_config_init,
2221 .config_aneg = &vsc85xx_config_aneg,
2222 .read_status = &vsc85xx_read_status,
2223 .ack_interrupt = &vsc85xx_ack_interrupt,
2224 .config_intr = &vsc85xx_config_intr,
2225 .suspend = &genphy_suspend,
2226 .resume = &genphy_resume,
2227 .probe = &vsc85xx_probe,
2228 .set_wol = &vsc85xx_wol_set,
2229 .get_wol = &vsc85xx_wol_get,
2230 .get_tunable = &vsc85xx_get_tunable,
2231 .set_tunable = &vsc85xx_set_tunable,
2232 .read_page = &vsc85xx_phy_read_page,
2233 .write_page = &vsc85xx_phy_write_page,
2234 .get_sset_count = &vsc85xx_get_sset_count,
2235 .get_strings = &vsc85xx_get_strings,
2236 .get_stats = &vsc85xx_get_stats,
2237 },
2238 {
2239 .phy_id = PHY_ID_VSC8504,
2240 .name = "Microsemi GE VSC8504 SyncE",
2241 .phy_id_mask = 0xfffffff0,
2242 /* PHY_GBIT_FEATURES */
2243 .soft_reset = &genphy_soft_reset,
2244 .config_init = &vsc8584_config_init,
2245 .config_aneg = &vsc85xx_config_aneg,
2246 .aneg_done = &genphy_aneg_done,
2247 .read_status = &vsc85xx_read_status,
2248 .ack_interrupt = &vsc85xx_ack_interrupt,
2249 .config_intr = &vsc85xx_config_intr,
2250 .did_interrupt = &vsc8584_did_interrupt,
2251 .suspend = &genphy_suspend,
2252 .resume = &genphy_resume,
2253 .probe = &vsc8574_probe,
2254 .set_wol = &vsc85xx_wol_set,
2255 .get_wol = &vsc85xx_wol_get,
2256 .get_tunable = &vsc85xx_get_tunable,
2257 .set_tunable = &vsc85xx_set_tunable,
2258 .read_page = &vsc85xx_phy_read_page,
2259 .write_page = &vsc85xx_phy_write_page,
2260 .get_sset_count = &vsc85xx_get_sset_count,
2261 .get_strings = &vsc85xx_get_strings,
2262 .get_stats = &vsc85xx_get_stats,
2263 },
2264 {
2265 .phy_id = PHY_ID_VSC8514,
2266 .name = "Microsemi GE VSC8514 SyncE",
2267 .phy_id_mask = 0xfffffff0,
2268 .soft_reset = &genphy_soft_reset,
2269 .config_init = &vsc8514_config_init,
2270 .config_aneg = &vsc85xx_config_aneg,
2271 .read_status = &vsc85xx_read_status,
2272 .ack_interrupt = &vsc85xx_ack_interrupt,
2273 .config_intr = &vsc85xx_config_intr,
2274 .suspend = &genphy_suspend,
2275 .resume = &genphy_resume,
2276 .probe = &vsc8514_probe,
2277 .set_wol = &vsc85xx_wol_set,
2278 .get_wol = &vsc85xx_wol_get,
2279 .get_tunable = &vsc85xx_get_tunable,
2280 .set_tunable = &vsc85xx_set_tunable,
2281 .read_page = &vsc85xx_phy_read_page,
2282 .write_page = &vsc85xx_phy_write_page,
2283 .get_sset_count = &vsc85xx_get_sset_count,
2284 .get_strings = &vsc85xx_get_strings,
2285 .get_stats = &vsc85xx_get_stats,
2286 },
2287 {
2288 .phy_id = PHY_ID_VSC8530,
2289 .name = "Microsemi FE VSC8530",
2290 .phy_id_mask = 0xfffffff0,
2291 /* PHY_BASIC_FEATURES */
2292 .soft_reset = &genphy_soft_reset,
2293 .config_init = &vsc85xx_config_init,
2294 .config_aneg = &vsc85xx_config_aneg,
2295 .read_status = &vsc85xx_read_status,
2296 .ack_interrupt = &vsc85xx_ack_interrupt,
2297 .config_intr = &vsc85xx_config_intr,
2298 .suspend = &genphy_suspend,
2299 .resume = &genphy_resume,
2300 .probe = &vsc85xx_probe,
2301 .set_wol = &vsc85xx_wol_set,
2302 .get_wol = &vsc85xx_wol_get,
2303 .get_tunable = &vsc85xx_get_tunable,
2304 .set_tunable = &vsc85xx_set_tunable,
2305 .read_page = &vsc85xx_phy_read_page,
2306 .write_page = &vsc85xx_phy_write_page,
2307 .get_sset_count = &vsc85xx_get_sset_count,
2308 .get_strings = &vsc85xx_get_strings,
2309 .get_stats = &vsc85xx_get_stats,
2310 },
2311 {
2312 .phy_id = PHY_ID_VSC8531,
2313 .name = "Microsemi VSC8531",
2314 .phy_id_mask = 0xfffffff0,
2315 /* PHY_GBIT_FEATURES */
2316 .soft_reset = &genphy_soft_reset,
2317 .config_init = &vsc85xx_config_init,
2318 .config_aneg = &vsc85xx_config_aneg,
2319 .read_status = &vsc85xx_read_status,
2320 .ack_interrupt = &vsc85xx_ack_interrupt,
2321 .config_intr = &vsc85xx_config_intr,
2322 .suspend = &genphy_suspend,
2323 .resume = &genphy_resume,
2324 .probe = &vsc85xx_probe,
2325 .set_wol = &vsc85xx_wol_set,
2326 .get_wol = &vsc85xx_wol_get,
2327 .get_tunable = &vsc85xx_get_tunable,
2328 .set_tunable = &vsc85xx_set_tunable,
2329 .read_page = &vsc85xx_phy_read_page,
2330 .write_page = &vsc85xx_phy_write_page,
2331 .get_sset_count = &vsc85xx_get_sset_count,
2332 .get_strings = &vsc85xx_get_strings,
2333 .get_stats = &vsc85xx_get_stats,
2334 },
2335 {
2336 .phy_id = PHY_ID_VSC8540,
2337 .name = "Microsemi FE VSC8540 SyncE",
2338 .phy_id_mask = 0xfffffff0,
2339 /* PHY_BASIC_FEATURES */
2340 .soft_reset = &genphy_soft_reset,
2341 .config_init = &vsc85xx_config_init,
2342 .config_aneg = &vsc85xx_config_aneg,
2343 .read_status = &vsc85xx_read_status,
2344 .ack_interrupt = &vsc85xx_ack_interrupt,
2345 .config_intr = &vsc85xx_config_intr,
2346 .suspend = &genphy_suspend,
2347 .resume = &genphy_resume,
2348 .probe = &vsc85xx_probe,
2349 .set_wol = &vsc85xx_wol_set,
2350 .get_wol = &vsc85xx_wol_get,
2351 .get_tunable = &vsc85xx_get_tunable,
2352 .set_tunable = &vsc85xx_set_tunable,
2353 .read_page = &vsc85xx_phy_read_page,
2354 .write_page = &vsc85xx_phy_write_page,
2355 .get_sset_count = &vsc85xx_get_sset_count,
2356 .get_strings = &vsc85xx_get_strings,
2357 .get_stats = &vsc85xx_get_stats,
2358 },
2359 {
2360 .phy_id = PHY_ID_VSC8541,
2361 .name = "Microsemi VSC8541 SyncE",
2362 .phy_id_mask = 0xfffffff0,
2363 /* PHY_GBIT_FEATURES */
2364 .soft_reset = &genphy_soft_reset,
2365 .config_init = &vsc85xx_config_init,
2366 .config_aneg = &vsc85xx_config_aneg,
2367 .read_status = &vsc85xx_read_status,
2368 .ack_interrupt = &vsc85xx_ack_interrupt,
2369 .config_intr = &vsc85xx_config_intr,
2370 .suspend = &genphy_suspend,
2371 .resume = &genphy_resume,
2372 .probe = &vsc85xx_probe,
2373 .set_wol = &vsc85xx_wol_set,
2374 .get_wol = &vsc85xx_wol_get,
2375 .get_tunable = &vsc85xx_get_tunable,
2376 .set_tunable = &vsc85xx_set_tunable,
2377 .read_page = &vsc85xx_phy_read_page,
2378 .write_page = &vsc85xx_phy_write_page,
2379 .get_sset_count = &vsc85xx_get_sset_count,
2380 .get_strings = &vsc85xx_get_strings,
2381 .get_stats = &vsc85xx_get_stats,
2382 },
2383 {
2384 .phy_id = PHY_ID_VSC8552,
2385 .name = "Microsemi GE VSC8552 SyncE",
2386 .phy_id_mask = 0xfffffff0,
2387 /* PHY_GBIT_FEATURES */
2388 .soft_reset = &genphy_soft_reset,
2389 .config_init = &vsc8584_config_init,
2390 .config_aneg = &vsc85xx_config_aneg,
2391 .read_status = &vsc85xx_read_status,
2392 .ack_interrupt = &vsc85xx_ack_interrupt,
2393 .config_intr = &vsc85xx_config_intr,
2394 .did_interrupt = &vsc8584_did_interrupt,
2395 .suspend = &genphy_suspend,
2396 .resume = &genphy_resume,
2397 .probe = &vsc8574_probe,
2398 .set_wol = &vsc85xx_wol_set,
2399 .get_wol = &vsc85xx_wol_get,
2400 .get_tunable = &vsc85xx_get_tunable,
2401 .set_tunable = &vsc85xx_set_tunable,
2402 .read_page = &vsc85xx_phy_read_page,
2403 .write_page = &vsc85xx_phy_write_page,
2404 .get_sset_count = &vsc85xx_get_sset_count,
2405 .get_strings = &vsc85xx_get_strings,
2406 .get_stats = &vsc85xx_get_stats,
2407 },
2408 {
2409 .phy_id = PHY_ID_VSC856X,
2410 .name = "Microsemi GE VSC856X SyncE",
2411 .phy_id_mask = 0xfffffff0,
2412 /* PHY_GBIT_FEATURES */
2413 .soft_reset = &genphy_soft_reset,
2414 .config_init = &vsc8584_config_init,
2415 .config_aneg = &vsc85xx_config_aneg,
2416 .read_status = &vsc85xx_read_status,
2417 .ack_interrupt = &vsc85xx_ack_interrupt,
2418 .config_intr = &vsc85xx_config_intr,
2419 .did_interrupt = &vsc8584_did_interrupt,
2420 .suspend = &genphy_suspend,
2421 .resume = &genphy_resume,
2422 .probe = &vsc8584_probe,
2423 .get_tunable = &vsc85xx_get_tunable,
2424 .set_tunable = &vsc85xx_set_tunable,
2425 .read_page = &vsc85xx_phy_read_page,
2426 .write_page = &vsc85xx_phy_write_page,
2427 .get_sset_count = &vsc85xx_get_sset_count,
2428 .get_strings = &vsc85xx_get_strings,
2429 .get_stats = &vsc85xx_get_stats,
2430 },
2431 {
2432 .phy_id = PHY_ID_VSC8572,
2433 .name = "Microsemi GE VSC8572 SyncE",
2434 .phy_id_mask = 0xfffffff0,
2435 /* PHY_GBIT_FEATURES */
2436 .soft_reset = &genphy_soft_reset,
2437 .config_init = &vsc8584_config_init,
2438 .config_aneg = &vsc85xx_config_aneg,
2439 .aneg_done = &genphy_aneg_done,
2440 .read_status = &vsc85xx_read_status,
2441 .handle_interrupt = &vsc8584_handle_interrupt,
2442 .ack_interrupt = &vsc85xx_ack_interrupt,
2443 .config_intr = &vsc85xx_config_intr,
2444 .did_interrupt = &vsc8584_did_interrupt,
2445 .suspend = &genphy_suspend,
2446 .resume = &genphy_resume,
2447 .probe = &vsc8574_probe,
2448 .set_wol = &vsc85xx_wol_set,
2449 .get_wol = &vsc85xx_wol_get,
2450 .get_tunable = &vsc85xx_get_tunable,
2451 .set_tunable = &vsc85xx_set_tunable,
2452 .read_page = &vsc85xx_phy_read_page,
2453 .write_page = &vsc85xx_phy_write_page,
2454 .get_sset_count = &vsc85xx_get_sset_count,
2455 .get_strings = &vsc85xx_get_strings,
2456 .get_stats = &vsc85xx_get_stats,
2457 },
2458 {
2459 .phy_id = PHY_ID_VSC8574,
2460 .name = "Microsemi GE VSC8574 SyncE",
2461 .phy_id_mask = 0xfffffff0,
2462 /* PHY_GBIT_FEATURES */
2463 .soft_reset = &genphy_soft_reset,
2464 .config_init = &vsc8584_config_init,
2465 .config_aneg = &vsc85xx_config_aneg,
2466 .aneg_done = &genphy_aneg_done,
2467 .read_status = &vsc85xx_read_status,
2468 .ack_interrupt = &vsc85xx_ack_interrupt,
2469 .config_intr = &vsc85xx_config_intr,
2470 .did_interrupt = &vsc8584_did_interrupt,
2471 .suspend = &genphy_suspend,
2472 .resume = &genphy_resume,
2473 .probe = &vsc8574_probe,
2474 .set_wol = &vsc85xx_wol_set,
2475 .get_wol = &vsc85xx_wol_get,
2476 .get_tunable = &vsc85xx_get_tunable,
2477 .set_tunable = &vsc85xx_set_tunable,
2478 .read_page = &vsc85xx_phy_read_page,
2479 .write_page = &vsc85xx_phy_write_page,
2480 .get_sset_count = &vsc85xx_get_sset_count,
2481 .get_strings = &vsc85xx_get_strings,
2482 .get_stats = &vsc85xx_get_stats,
2483 },
2484 {
2485 .phy_id = PHY_ID_VSC8575,
2486 .name = "Microsemi GE VSC8575 SyncE",
2487 .phy_id_mask = 0xfffffff0,
2488 /* PHY_GBIT_FEATURES */
2489 .soft_reset = &genphy_soft_reset,
2490 .config_init = &vsc8584_config_init,
2491 .config_aneg = &vsc85xx_config_aneg,
2492 .aneg_done = &genphy_aneg_done,
2493 .read_status = &vsc85xx_read_status,
2494 .handle_interrupt = &vsc8584_handle_interrupt,
2495 .ack_interrupt = &vsc85xx_ack_interrupt,
2496 .config_intr = &vsc85xx_config_intr,
2497 .did_interrupt = &vsc8584_did_interrupt,
2498 .suspend = &genphy_suspend,
2499 .resume = &genphy_resume,
2500 .probe = &vsc8584_probe,
2501 .get_tunable = &vsc85xx_get_tunable,
2502 .set_tunable = &vsc85xx_set_tunable,
2503 .read_page = &vsc85xx_phy_read_page,
2504 .write_page = &vsc85xx_phy_write_page,
2505 .get_sset_count = &vsc85xx_get_sset_count,
2506 .get_strings = &vsc85xx_get_strings,
2507 .get_stats = &vsc85xx_get_stats,
2508 },
2509 {
2510 .phy_id = PHY_ID_VSC8582,
2511 .name = "Microsemi GE VSC8582 SyncE",
2512 .phy_id_mask = 0xfffffff0,
2513 /* PHY_GBIT_FEATURES */
2514 .soft_reset = &genphy_soft_reset,
2515 .config_init = &vsc8584_config_init,
2516 .config_aneg = &vsc85xx_config_aneg,
2517 .aneg_done = &genphy_aneg_done,
2518 .read_status = &vsc85xx_read_status,
2519 .handle_interrupt = &vsc8584_handle_interrupt,
2520 .ack_interrupt = &vsc85xx_ack_interrupt,
2521 .config_intr = &vsc85xx_config_intr,
2522 .did_interrupt = &vsc8584_did_interrupt,
2523 .suspend = &genphy_suspend,
2524 .resume = &genphy_resume,
2525 .probe = &vsc8584_probe,
2526 .get_tunable = &vsc85xx_get_tunable,
2527 .set_tunable = &vsc85xx_set_tunable,
2528 .read_page = &vsc85xx_phy_read_page,
2529 .write_page = &vsc85xx_phy_write_page,
2530 .get_sset_count = &vsc85xx_get_sset_count,
2531 .get_strings = &vsc85xx_get_strings,
2532 .get_stats = &vsc85xx_get_stats,
2533 },
2534 {
2535 .phy_id = PHY_ID_VSC8584,
2536 .name = "Microsemi GE VSC8584 SyncE",
2537 .phy_id_mask = 0xfffffff0,
2538 /* PHY_GBIT_FEATURES */
2539 .soft_reset = &genphy_soft_reset,
2540 .config_init = &vsc8584_config_init,
2541 .config_aneg = &vsc85xx_config_aneg,
2542 .aneg_done = &genphy_aneg_done,
2543 .read_status = &vsc85xx_read_status,
2544 .handle_interrupt = &vsc8584_handle_interrupt,
2545 .ack_interrupt = &vsc85xx_ack_interrupt,
2546 .config_intr = &vsc85xx_config_intr,
2547 .did_interrupt = &vsc8584_did_interrupt,
2548 .suspend = &genphy_suspend,
2549 .resume = &genphy_resume,
2550 .probe = &vsc8584_probe,
2551 .get_tunable = &vsc85xx_get_tunable,
2552 .set_tunable = &vsc85xx_set_tunable,
2553 .read_page = &vsc85xx_phy_read_page,
2554 .write_page = &vsc85xx_phy_write_page,
2555 .get_sset_count = &vsc85xx_get_sset_count,
2556 .get_strings = &vsc85xx_get_strings,
2557 .get_stats = &vsc85xx_get_stats,
2558 .link_change_notify = &vsc85xx_link_change_notify,
2559 }
2560
2561 };
2562
2563 module_phy_driver(vsc85xx_driver);
2564
2565 static struct mdio_device_id __maybe_unused vsc85xx_tbl[] = {
2566 { PHY_ID_VSC8504, 0xfffffff0, },
2567 { PHY_ID_VSC8514, 0xfffffff0, },
2568 { PHY_ID_VSC8530, 0xfffffff0, },
2569 { PHY_ID_VSC8531, 0xfffffff0, },
2570 { PHY_ID_VSC8540, 0xfffffff0, },
2571 { PHY_ID_VSC8541, 0xfffffff0, },
2572 { PHY_ID_VSC8552, 0xfffffff0, },
2573 { PHY_ID_VSC856X, 0xfffffff0, },
2574 { PHY_ID_VSC8572, 0xfffffff0, },
2575 { PHY_ID_VSC8574, 0xfffffff0, },
2576 { PHY_ID_VSC8575, 0xfffffff0, },
2577 { PHY_ID_VSC8582, 0xfffffff0, },
2578 { PHY_ID_VSC8584, 0xfffffff0, },
2579 { }
2580 };
2581
2582 MODULE_DEVICE_TABLE(mdio, vsc85xx_tbl);
2583
2584 MODULE_DESCRIPTION("Microsemi VSC85xx PHY driver");
2585 MODULE_AUTHOR("Nagaraju Lakkaraju");
2586 MODULE_LICENSE("Dual MIT/GPL");
2587