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perf tools: Don't clone maps from parent when synthesizing forks
[linux/fpc-iii.git] / drivers / net / phy / mscc.c
bloba2e59f4f6f01fcfa5b4c754529a68ac1fb57e095
1 /*
2 * Driver for Microsemi VSC85xx PHYs
3 *
4 * Author: Nagaraju Lakkaraju
5 * License: Dual MIT/GPL
6 * Copyright (c) 2016 Microsemi Corporation
7 */
8
9 #include <linux/firmware.h>
10 #include <linux/jiffies.h>
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13 #include <linux/mdio.h>
14 #include <linux/mii.h>
15 #include <linux/phy.h>
16 #include <linux/of.h>
17 #include <linux/netdevice.h>
18 #include <dt-bindings/net/mscc-phy-vsc8531.h>
19
20 enum rgmii_rx_clock_delay {
21 RGMII_RX_CLK_DELAY_0_2_NS = 0,
22 RGMII_RX_CLK_DELAY_0_8_NS = 1,
23 RGMII_RX_CLK_DELAY_1_1_NS = 2,
24 RGMII_RX_CLK_DELAY_1_7_NS = 3,
25 RGMII_RX_CLK_DELAY_2_0_NS = 4,
26 RGMII_RX_CLK_DELAY_2_3_NS = 5,
27 RGMII_RX_CLK_DELAY_2_6_NS = 6,
28 RGMII_RX_CLK_DELAY_3_4_NS = 7
29 };
30
31 /* Microsemi VSC85xx PHY registers */
32 /* IEEE 802. Std Registers */
33 #define MSCC_PHY_BYPASS_CONTROL 18
34 #define DISABLE_HP_AUTO_MDIX_MASK 0x0080
35 #define DISABLE_PAIR_SWAP_CORR_MASK 0x0020
36 #define DISABLE_POLARITY_CORR_MASK 0x0010
37 #define PARALLEL_DET_IGNORE_ADVERTISED 0x0008
38
39 #define MSCC_PHY_EXT_CNTL_STATUS 22
40 #define SMI_BROADCAST_WR_EN 0x0001
41
42 #define MSCC_PHY_ERR_RX_CNT 19
43 #define MSCC_PHY_ERR_FALSE_CARRIER_CNT 20
44 #define MSCC_PHY_ERR_LINK_DISCONNECT_CNT 21
45 #define ERR_CNT_MASK GENMASK(7, 0)
46
47 #define MSCC_PHY_EXT_PHY_CNTL_1 23
48 #define MAC_IF_SELECTION_MASK 0x1800
49 #define MAC_IF_SELECTION_GMII 0
50 #define MAC_IF_SELECTION_RMII 1
51 #define MAC_IF_SELECTION_RGMII 2
52 #define MAC_IF_SELECTION_POS 11
53 #define VSC8584_MAC_IF_SELECTION_MASK 0x1000
54 #define VSC8584_MAC_IF_SELECTION_SGMII 0
55 #define VSC8584_MAC_IF_SELECTION_1000BASEX 1
56 #define VSC8584_MAC_IF_SELECTION_POS 12
57 #define FAR_END_LOOPBACK_MODE_MASK 0x0008
58 #define MEDIA_OP_MODE_MASK 0x0700
59 #define MEDIA_OP_MODE_COPPER 0
60 #define MEDIA_OP_MODE_SERDES 1
61 #define MEDIA_OP_MODE_1000BASEX 2
62 #define MEDIA_OP_MODE_100BASEFX 3
63 #define MEDIA_OP_MODE_AMS_COPPER_SERDES 5
64 #define MEDIA_OP_MODE_AMS_COPPER_1000BASEX 6
65 #define MEDIA_OP_MODE_AMS_COPPER_100BASEFX 7
66 #define MEDIA_OP_MODE_POS 8
67
68 #define MSCC_PHY_EXT_PHY_CNTL_2 24
69
70 #define MII_VSC85XX_INT_MASK 25
71 #define MII_VSC85XX_INT_MASK_MASK 0xa000
72 #define MII_VSC85XX_INT_MASK_WOL 0x0040
73 #define MII_VSC85XX_INT_STATUS 26
74
75 #define MSCC_PHY_WOL_MAC_CONTROL 27
76 #define EDGE_RATE_CNTL_POS 5
77 #define EDGE_RATE_CNTL_MASK 0x00E0
78
79 #define MSCC_PHY_DEV_AUX_CNTL 28
80 #define HP_AUTO_MDIX_X_OVER_IND_MASK 0x2000
81
82 #define MSCC_PHY_LED_MODE_SEL 29
83 #define LED_MODE_SEL_POS(x) ((x) * 4)
84 #define LED_MODE_SEL_MASK(x) (GENMASK(3, 0) << LED_MODE_SEL_POS(x))
85 #define LED_MODE_SEL(x, mode) (((mode) << LED_MODE_SEL_POS(x)) & LED_MODE_SEL_MASK(x))
86
87 #define MSCC_EXT_PAGE_ACCESS 31
88 #define MSCC_PHY_PAGE_STANDARD 0x0000 /* Standard registers */
89 #define MSCC_PHY_PAGE_EXTENDED 0x0001 /* Extended registers */
90 #define MSCC_PHY_PAGE_EXTENDED_2 0x0002 /* Extended reg - page 2 */
91 #define MSCC_PHY_PAGE_EXTENDED_3 0x0003 /* Extended reg - page 3 */
92 #define MSCC_PHY_PAGE_EXTENDED_4 0x0004 /* Extended reg - page 4 */
93 /* Extended reg - GPIO; this is a bank of registers that are shared for all PHYs
94 * in the same package.
95 */
96 #define MSCC_PHY_PAGE_EXTENDED_GPIO 0x0010 /* Extended reg - GPIO */
97 #define MSCC_PHY_PAGE_TEST 0x2a30 /* Test reg */
98 #define MSCC_PHY_PAGE_TR 0x52b5 /* Token ring registers */
99
100 /* Extended Page 1 Registers */
101 #define MSCC_PHY_CU_MEDIA_CRC_VALID_CNT 18
102 #define VALID_CRC_CNT_CRC_MASK GENMASK(13, 0)
103
104 #define MSCC_PHY_EXT_MODE_CNTL 19
105 #define FORCE_MDI_CROSSOVER_MASK 0x000C
106 #define FORCE_MDI_CROSSOVER_MDIX 0x000C
107 #define FORCE_MDI_CROSSOVER_MDI 0x0008
108
109 #define MSCC_PHY_ACTIPHY_CNTL 20
110 #define PHY_ADDR_REVERSED 0x0200
111 #define DOWNSHIFT_CNTL_MASK 0x001C
112 #define DOWNSHIFT_EN 0x0010
113 #define DOWNSHIFT_CNTL_POS 2
114
115 #define MSCC_PHY_EXT_PHY_CNTL_4 23
116 #define PHY_CNTL_4_ADDR_POS 11
117
118 #define MSCC_PHY_VERIPHY_CNTL_2 25
119
120 #define MSCC_PHY_VERIPHY_CNTL_3 26
121
122 /* Extended Page 2 Registers */
123 #define MSCC_PHY_CU_PMD_TX_CNTL 16
124
125 #define MSCC_PHY_RGMII_CNTL 20
126 #define RGMII_RX_CLK_DELAY_MASK 0x0070
127 #define RGMII_RX_CLK_DELAY_POS 4
128
129 #define MSCC_PHY_WOL_LOWER_MAC_ADDR 21
130 #define MSCC_PHY_WOL_MID_MAC_ADDR 22
131 #define MSCC_PHY_WOL_UPPER_MAC_ADDR 23
132 #define MSCC_PHY_WOL_LOWER_PASSWD 24
133 #define MSCC_PHY_WOL_MID_PASSWD 25
134 #define MSCC_PHY_WOL_UPPER_PASSWD 26
135
136 #define MSCC_PHY_WOL_MAC_CONTROL 27
137 #define SECURE_ON_ENABLE 0x8000
138 #define SECURE_ON_PASSWD_LEN_4 0x4000
139
140 /* Extended Page 3 Registers */
141 #define MSCC_PHY_SERDES_TX_VALID_CNT 21
142 #define MSCC_PHY_SERDES_TX_CRC_ERR_CNT 22
143 #define MSCC_PHY_SERDES_RX_VALID_CNT 28
144 #define MSCC_PHY_SERDES_RX_CRC_ERR_CNT 29
145
146 /* Extended page GPIO Registers */
147 #define MSCC_DW8051_CNTL_STATUS 0
148 #define MICRO_NSOFT_RESET 0x8000
149 #define RUN_FROM_INT_ROM 0x4000
150 #define AUTOINC_ADDR 0x2000
151 #define PATCH_RAM_CLK 0x1000
152 #define MICRO_PATCH_EN 0x0080
153 #define DW8051_CLK_EN 0x0010
154 #define MICRO_CLK_EN 0x0008
155 #define MICRO_CLK_DIVIDE(x) ((x) >> 1)
156 #define MSCC_DW8051_VLD_MASK 0xf1ff
157
158 /* x Address in range 1-4 */
159 #define MSCC_TRAP_ROM_ADDR(x) ((x) * 2 + 1)
160 #define MSCC_PATCH_RAM_ADDR(x) (((x) + 1) * 2)
161 #define MSCC_INT_MEM_ADDR 11
162
163 #define MSCC_INT_MEM_CNTL 12
164 #define READ_SFR 0x6000
165 #define READ_PRAM 0x4000
166 #define READ_ROM 0x2000
167 #define READ_RAM 0x0000
168 #define INT_MEM_WRITE_EN 0x1000
169 #define EN_PATCH_RAM_TRAP_ADDR(x) (0x0100 << ((x) - 1))
170 #define INT_MEM_DATA_M 0x00ff
171 #define INT_MEM_DATA(x) (INT_MEM_DATA_M & (x))
172
173 #define MSCC_PHY_PROC_CMD 18
174 #define PROC_CMD_NCOMPLETED 0x8000
175 #define PROC_CMD_FAILED 0x4000
176 #define PROC_CMD_SGMII_PORT(x) ((x) << 8)
177 #define PROC_CMD_FIBER_PORT(x) (0x0100 << (x) % 4)
178 #define PROC_CMD_QSGMII_PORT 0x0c00
179 #define PROC_CMD_RST_CONF_PORT 0x0080
180 #define PROC_CMD_RECONF_PORT 0x0000
181 #define PROC_CMD_READ_MOD_WRITE_PORT 0x0040
182 #define PROC_CMD_WRITE 0x0040
183 #define PROC_CMD_READ 0x0000
184 #define PROC_CMD_FIBER_DISABLE 0x0020
185 #define PROC_CMD_FIBER_100BASE_FX 0x0010
186 #define PROC_CMD_FIBER_1000BASE_X 0x0000
187 #define PROC_CMD_SGMII_MAC 0x0030
188 #define PROC_CMD_QSGMII_MAC 0x0020
189 #define PROC_CMD_NO_MAC_CONF 0x0000
190 #define PROC_CMD_1588_DEFAULT_INIT 0x0010
191 #define PROC_CMD_NOP 0x000f
192 #define PROC_CMD_PHY_INIT 0x000a
193 #define PROC_CMD_CRC16 0x0008
194 #define PROC_CMD_FIBER_MEDIA_CONF 0x0001
195 #define PROC_CMD_MCB_ACCESS_MAC_CONF 0x0000
196 #define PROC_CMD_NCOMPLETED_TIMEOUT_MS 500
197
198 #define MSCC_PHY_MAC_CFG_FASTLINK 19
199 #define MAC_CFG_MASK 0xc000
200 #define MAC_CFG_SGMII 0x0000
201 #define MAC_CFG_QSGMII 0x4000
202
203 /* Test page Registers */
204 #define MSCC_PHY_TEST_PAGE_5 5
205 #define MSCC_PHY_TEST_PAGE_8 8
206 #define MSCC_PHY_TEST_PAGE_9 9
207 #define MSCC_PHY_TEST_PAGE_20 20
208 #define MSCC_PHY_TEST_PAGE_24 24
209
210 /* Token ring page Registers */
211 #define MSCC_PHY_TR_CNTL 16
212 #define TR_WRITE 0x8000
213 #define TR_ADDR(x) (0x7fff & (x))
214 #define MSCC_PHY_TR_LSB 17
215 #define MSCC_PHY_TR_MSB 18
216
217 /* Microsemi PHY ID's */
218 #define PHY_ID_VSC8530 0x00070560
219 #define PHY_ID_VSC8531 0x00070570
220 #define PHY_ID_VSC8540 0x00070760
221 #define PHY_ID_VSC8541 0x00070770
222 #define PHY_ID_VSC8574 0x000704a0
223 #define PHY_ID_VSC8584 0x000707c0
224
225 #define MSCC_VDDMAC_1500 1500
226 #define MSCC_VDDMAC_1800 1800
227 #define MSCC_VDDMAC_2500 2500
228 #define MSCC_VDDMAC_3300 3300
229
230 #define DOWNSHIFT_COUNT_MAX 5
231
232 #define MAX_LEDS 4
233
234 #define VSC8584_SUPP_LED_MODES (BIT(VSC8531_LINK_ACTIVITY) | \
235 BIT(VSC8531_LINK_1000_ACTIVITY) | \
236 BIT(VSC8531_LINK_100_ACTIVITY) | \
237 BIT(VSC8531_LINK_10_ACTIVITY) | \
238 BIT(VSC8531_LINK_100_1000_ACTIVITY) | \
239 BIT(VSC8531_LINK_10_1000_ACTIVITY) | \
240 BIT(VSC8531_LINK_10_100_ACTIVITY) | \
241 BIT(VSC8584_LINK_100FX_1000X_ACTIVITY) | \
242 BIT(VSC8531_DUPLEX_COLLISION) | \
243 BIT(VSC8531_COLLISION) | \
244 BIT(VSC8531_ACTIVITY) | \
245 BIT(VSC8584_100FX_1000X_ACTIVITY) | \
246 BIT(VSC8531_AUTONEG_FAULT) | \
247 BIT(VSC8531_SERIAL_MODE) | \
248 BIT(VSC8531_FORCE_LED_OFF) | \
249 BIT(VSC8531_FORCE_LED_ON))
250
251 #define VSC85XX_SUPP_LED_MODES (BIT(VSC8531_LINK_ACTIVITY) | \
252 BIT(VSC8531_LINK_1000_ACTIVITY) | \
253 BIT(VSC8531_LINK_100_ACTIVITY) | \
254 BIT(VSC8531_LINK_10_ACTIVITY) | \
255 BIT(VSC8531_LINK_100_1000_ACTIVITY) | \
256 BIT(VSC8531_LINK_10_1000_ACTIVITY) | \
257 BIT(VSC8531_LINK_10_100_ACTIVITY) | \
258 BIT(VSC8531_DUPLEX_COLLISION) | \
259 BIT(VSC8531_COLLISION) | \
260 BIT(VSC8531_ACTIVITY) | \
261 BIT(VSC8531_AUTONEG_FAULT) | \
262 BIT(VSC8531_SERIAL_MODE) | \
263 BIT(VSC8531_FORCE_LED_OFF) | \
264 BIT(VSC8531_FORCE_LED_ON))
265
266 #define MSCC_VSC8584_REVB_INT8051_FW "mscc_vsc8584_revb_int8051_fb48.bin"
267 #define MSCC_VSC8584_REVB_INT8051_FW_START_ADDR 0xe800
268 #define MSCC_VSC8584_REVB_INT8051_FW_CRC 0xfb48
269
270 #define MSCC_VSC8574_REVB_INT8051_FW "mscc_vsc8574_revb_int8051_29e8.bin"
271 #define MSCC_VSC8574_REVB_INT8051_FW_START_ADDR 0x4000
272 #define MSCC_VSC8574_REVB_INT8051_FW_CRC 0x29e8
273
274 #define VSC8584_REVB 0x0001
275 #define MSCC_DEV_REV_MASK GENMASK(3, 0)
276
277 struct reg_val {
278 u16 reg;
279 u32 val;
280 };
281
282 struct vsc85xx_hw_stat {
283 const char *string;
284 u8 reg;
285 u16 page;
286 u16 mask;
287 };
288
289 static const struct vsc85xx_hw_stat vsc85xx_hw_stats[] = {
290 {
291 .string = "phy_receive_errors",
292 .reg = MSCC_PHY_ERR_RX_CNT,
293 .page = MSCC_PHY_PAGE_STANDARD,
294 .mask = ERR_CNT_MASK,
295 }, {
296 .string = "phy_false_carrier",
297 .reg = MSCC_PHY_ERR_FALSE_CARRIER_CNT,
298 .page = MSCC_PHY_PAGE_STANDARD,
299 .mask = ERR_CNT_MASK,
300 }, {
301 .string = "phy_cu_media_link_disconnect",
302 .reg = MSCC_PHY_ERR_LINK_DISCONNECT_CNT,
303 .page = MSCC_PHY_PAGE_STANDARD,
304 .mask = ERR_CNT_MASK,
305 }, {
306 .string = "phy_cu_media_crc_good_count",
307 .reg = MSCC_PHY_CU_MEDIA_CRC_VALID_CNT,
308 .page = MSCC_PHY_PAGE_EXTENDED,
309 .mask = VALID_CRC_CNT_CRC_MASK,
310 }, {
311 .string = "phy_cu_media_crc_error_count",
312 .reg = MSCC_PHY_EXT_PHY_CNTL_4,
313 .page = MSCC_PHY_PAGE_EXTENDED,
314 .mask = ERR_CNT_MASK,
315 },
316 };
317
318 static const struct vsc85xx_hw_stat vsc8584_hw_stats[] = {
319 {
320 .string = "phy_receive_errors",
321 .reg = MSCC_PHY_ERR_RX_CNT,
322 .page = MSCC_PHY_PAGE_STANDARD,
323 .mask = ERR_CNT_MASK,
324 }, {
325 .string = "phy_false_carrier",
326 .reg = MSCC_PHY_ERR_FALSE_CARRIER_CNT,
327 .page = MSCC_PHY_PAGE_STANDARD,
328 .mask = ERR_CNT_MASK,
329 }, {
330 .string = "phy_cu_media_link_disconnect",
331 .reg = MSCC_PHY_ERR_LINK_DISCONNECT_CNT,
332 .page = MSCC_PHY_PAGE_STANDARD,
333 .mask = ERR_CNT_MASK,
334 }, {
335 .string = "phy_cu_media_crc_good_count",
336 .reg = MSCC_PHY_CU_MEDIA_CRC_VALID_CNT,
337 .page = MSCC_PHY_PAGE_EXTENDED,
338 .mask = VALID_CRC_CNT_CRC_MASK,
339 }, {
340 .string = "phy_cu_media_crc_error_count",
341 .reg = MSCC_PHY_EXT_PHY_CNTL_4,
342 .page = MSCC_PHY_PAGE_EXTENDED,
343 .mask = ERR_CNT_MASK,
344 }, {
345 .string = "phy_serdes_tx_good_pkt_count",
346 .reg = MSCC_PHY_SERDES_TX_VALID_CNT,
347 .page = MSCC_PHY_PAGE_EXTENDED_3,
348 .mask = VALID_CRC_CNT_CRC_MASK,
349 }, {
350 .string = "phy_serdes_tx_bad_crc_count",
351 .reg = MSCC_PHY_SERDES_TX_CRC_ERR_CNT,
352 .page = MSCC_PHY_PAGE_EXTENDED_3,
353 .mask = ERR_CNT_MASK,
354 }, {
355 .string = "phy_serdes_rx_good_pkt_count",
356 .reg = MSCC_PHY_SERDES_RX_VALID_CNT,
357 .page = MSCC_PHY_PAGE_EXTENDED_3,
358 .mask = VALID_CRC_CNT_CRC_MASK,
359 }, {
360 .string = "phy_serdes_rx_bad_crc_count",
361 .reg = MSCC_PHY_SERDES_RX_CRC_ERR_CNT,
362 .page = MSCC_PHY_PAGE_EXTENDED_3,
363 .mask = ERR_CNT_MASK,
364 },
365 };
366
367 struct vsc8531_private {
368 int rate_magic;
369 u16 supp_led_modes;
370 u32 leds_mode[MAX_LEDS];
371 u8 nleds;
372 const struct vsc85xx_hw_stat *hw_stats;
373 u64 *stats;
374 int nstats;
375 bool pkg_init;
376 /* For multiple port PHYs; the MDIO address of the base PHY in the
377 * package.
378 */
379 unsigned int base_addr;
380 };
381
382 #ifdef CONFIG_OF_MDIO
383 struct vsc8531_edge_rate_table {
384 u32 vddmac;
385 u32 slowdown[8];
386 };
387
388 static const struct vsc8531_edge_rate_table edge_table[] = {
389 {MSCC_VDDMAC_3300, { 0, 2, 4, 7, 10, 17, 29, 53} },
390 {MSCC_VDDMAC_2500, { 0, 3, 6, 10, 14, 23, 37, 63} },
391 {MSCC_VDDMAC_1800, { 0, 5, 9, 16, 23, 35, 52, 76} },
392 {MSCC_VDDMAC_1500, { 0, 6, 14, 21, 29, 42, 58, 77} },
393 };
394 #endif /* CONFIG_OF_MDIO */
395
396 static int vsc85xx_phy_read_page(struct phy_device *phydev)
397 {
398 return __phy_read(phydev, MSCC_EXT_PAGE_ACCESS);
399 }
400
401 static int vsc85xx_phy_write_page(struct phy_device *phydev, int page)
402 {
403 return __phy_write(phydev, MSCC_EXT_PAGE_ACCESS, page);
404 }
405
406 static int vsc85xx_get_sset_count(struct phy_device *phydev)
407 {
408 struct vsc8531_private *priv = phydev->priv;
409
410 if (!priv)
411 return 0;
412
413 return priv->nstats;
414 }
415
416 static void vsc85xx_get_strings(struct phy_device *phydev, u8 *data)
417 {
418 struct vsc8531_private *priv = phydev->priv;
419 int i;
420
421 if (!priv)
422 return;
423
424 for (i = 0; i < priv->nstats; i++)
425 strlcpy(data + i * ETH_GSTRING_LEN, priv->hw_stats[i].string,
426 ETH_GSTRING_LEN);
427 }
428
429 static u64 vsc85xx_get_stat(struct phy_device *phydev, int i)
430 {
431 struct vsc8531_private *priv = phydev->priv;
432 int val;
433
434 val = phy_read_paged(phydev, priv->hw_stats[i].page,
435 priv->hw_stats[i].reg);
436 if (val < 0)
437 return U64_MAX;
438
439 val = val & priv->hw_stats[i].mask;
440 priv->stats[i] += val;
441
442 return priv->stats[i];
443 }
444
445 static void vsc85xx_get_stats(struct phy_device *phydev,
446 struct ethtool_stats *stats, u64 *data)
447 {
448 struct vsc8531_private *priv = phydev->priv;
449 int i;
450
451 if (!priv)
452 return;
453
454 for (i = 0; i < priv->nstats; i++)
455 data[i] = vsc85xx_get_stat(phydev, i);
456 }
457
458 static int vsc85xx_led_cntl_set(struct phy_device *phydev,
459 u8 led_num,
460 u8 mode)
461 {
462 int rc;
463 u16 reg_val;
464
465 mutex_lock(&phydev->lock);
466 reg_val = phy_read(phydev, MSCC_PHY_LED_MODE_SEL);
467 reg_val &= ~LED_MODE_SEL_MASK(led_num);
468 reg_val |= LED_MODE_SEL(led_num, (u16)mode);
469 rc = phy_write(phydev, MSCC_PHY_LED_MODE_SEL, reg_val);
470 mutex_unlock(&phydev->lock);
471
472 return rc;
473 }
474
475 static int vsc85xx_mdix_get(struct phy_device *phydev, u8 *mdix)
476 {
477 u16 reg_val;
478
479 reg_val = phy_read(phydev, MSCC_PHY_DEV_AUX_CNTL);
480 if (reg_val & HP_AUTO_MDIX_X_OVER_IND_MASK)
481 *mdix = ETH_TP_MDI_X;
482 else
483 *mdix = ETH_TP_MDI;
484
485 return 0;
486 }
487
488 static int vsc85xx_mdix_set(struct phy_device *phydev, u8 mdix)
489 {
490 int rc;
491 u16 reg_val;
492
493 reg_val = phy_read(phydev, MSCC_PHY_BYPASS_CONTROL);
494 if (mdix == ETH_TP_MDI || mdix == ETH_TP_MDI_X) {
495 reg_val |= (DISABLE_PAIR_SWAP_CORR_MASK |
496 DISABLE_POLARITY_CORR_MASK |
497 DISABLE_HP_AUTO_MDIX_MASK);
498 } else {
499 reg_val &= ~(DISABLE_PAIR_SWAP_CORR_MASK |
500 DISABLE_POLARITY_CORR_MASK |
501 DISABLE_HP_AUTO_MDIX_MASK);
502 }
503 rc = phy_write(phydev, MSCC_PHY_BYPASS_CONTROL, reg_val);
504 if (rc)
505 return rc;
506
507 reg_val = 0;
508
509 if (mdix == ETH_TP_MDI)
510 reg_val = FORCE_MDI_CROSSOVER_MDI;
511 else if (mdix == ETH_TP_MDI_X)
512 reg_val = FORCE_MDI_CROSSOVER_MDIX;
513
514 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED,
515 MSCC_PHY_EXT_MODE_CNTL, FORCE_MDI_CROSSOVER_MASK,
516 reg_val);
517 if (rc < 0)
518 return rc;
519
520 return genphy_restart_aneg(phydev);
521 }
522
523 static int vsc85xx_downshift_get(struct phy_device *phydev, u8 *count)
524 {
525 int reg_val;
526
527 reg_val = phy_read_paged(phydev, MSCC_PHY_PAGE_EXTENDED,
528 MSCC_PHY_ACTIPHY_CNTL);
529 if (reg_val < 0)
530 return reg_val;
531
532 reg_val &= DOWNSHIFT_CNTL_MASK;
533 if (!(reg_val & DOWNSHIFT_EN))
534 *count = DOWNSHIFT_DEV_DISABLE;
535 else
536 *count = ((reg_val & ~DOWNSHIFT_EN) >> DOWNSHIFT_CNTL_POS) + 2;
537
538 return 0;
539 }
540
541 static int vsc85xx_downshift_set(struct phy_device *phydev, u8 count)
542 {
543 if (count == DOWNSHIFT_DEV_DEFAULT_COUNT) {
544 /* Default downshift count 3 (i.e. Bit3:2 = 0b01) */
545 count = ((1 << DOWNSHIFT_CNTL_POS) | DOWNSHIFT_EN);
546 } else if (count > DOWNSHIFT_COUNT_MAX || count == 1) {
547 phydev_err(phydev, "Downshift count should be 2,3,4 or 5\n");
548 return -ERANGE;
549 } else if (count) {
550 /* Downshift count is either 2,3,4 or 5 */
551 count = (((count - 2) << DOWNSHIFT_CNTL_POS) | DOWNSHIFT_EN);
552 }
553
554 return phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED,
555 MSCC_PHY_ACTIPHY_CNTL, DOWNSHIFT_CNTL_MASK,
556 count);
557 }
558
559 static int vsc85xx_wol_set(struct phy_device *phydev,
560 struct ethtool_wolinfo *wol)
561 {
562 int rc;
563 u16 reg_val;
564 u8 i;
565 u16 pwd[3] = {0, 0, 0};
566 struct ethtool_wolinfo *wol_conf = wol;
567 u8 *mac_addr = phydev->attached_dev->dev_addr;
568
569 mutex_lock(&phydev->lock);
570 rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2);
571 if (rc < 0) {
572 rc = phy_restore_page(phydev, rc, rc);
573 goto out_unlock;
574 }
575
576 if (wol->wolopts & WAKE_MAGIC) {
577 /* Store the device address for the magic packet */
578 for (i = 0; i < ARRAY_SIZE(pwd); i++)
579 pwd[i] = mac_addr[5 - (i * 2 + 1)] << 8 |
580 mac_addr[5 - i * 2];
581 __phy_write(phydev, MSCC_PHY_WOL_LOWER_MAC_ADDR, pwd[0]);
582 __phy_write(phydev, MSCC_PHY_WOL_MID_MAC_ADDR, pwd[1]);
583 __phy_write(phydev, MSCC_PHY_WOL_UPPER_MAC_ADDR, pwd[2]);
584 } else {
585 __phy_write(phydev, MSCC_PHY_WOL_LOWER_MAC_ADDR, 0);
586 __phy_write(phydev, MSCC_PHY_WOL_MID_MAC_ADDR, 0);
587 __phy_write(phydev, MSCC_PHY_WOL_UPPER_MAC_ADDR, 0);
588 }
589
590 if (wol_conf->wolopts & WAKE_MAGICSECURE) {
591 for (i = 0; i < ARRAY_SIZE(pwd); i++)
592 pwd[i] = wol_conf->sopass[5 - (i * 2 + 1)] << 8 |
593 wol_conf->sopass[5 - i * 2];
594 __phy_write(phydev, MSCC_PHY_WOL_LOWER_PASSWD, pwd[0]);
595 __phy_write(phydev, MSCC_PHY_WOL_MID_PASSWD, pwd[1]);
596 __phy_write(phydev, MSCC_PHY_WOL_UPPER_PASSWD, pwd[2]);
597 } else {
598 __phy_write(phydev, MSCC_PHY_WOL_LOWER_PASSWD, 0);
599 __phy_write(phydev, MSCC_PHY_WOL_MID_PASSWD, 0);
600 __phy_write(phydev, MSCC_PHY_WOL_UPPER_PASSWD, 0);
601 }
602
603 reg_val = __phy_read(phydev, MSCC_PHY_WOL_MAC_CONTROL);
604 if (wol_conf->wolopts & WAKE_MAGICSECURE)
605 reg_val |= SECURE_ON_ENABLE;
606 else
607 reg_val &= ~SECURE_ON_ENABLE;
608 __phy_write(phydev, MSCC_PHY_WOL_MAC_CONTROL, reg_val);
609
610 rc = phy_restore_page(phydev, rc, rc > 0 ? 0 : rc);
611 if (rc < 0)
612 goto out_unlock;
613
614 if (wol->wolopts & WAKE_MAGIC) {
615 /* Enable the WOL interrupt */
616 reg_val = phy_read(phydev, MII_VSC85XX_INT_MASK);
617 reg_val |= MII_VSC85XX_INT_MASK_WOL;
618 rc = phy_write(phydev, MII_VSC85XX_INT_MASK, reg_val);
619 if (rc)
620 goto out_unlock;
621 } else {
622 /* Disable the WOL interrupt */
623 reg_val = phy_read(phydev, MII_VSC85XX_INT_MASK);
624 reg_val &= (~MII_VSC85XX_INT_MASK_WOL);
625 rc = phy_write(phydev, MII_VSC85XX_INT_MASK, reg_val);
626 if (rc)
627 goto out_unlock;
628 }
629 /* Clear WOL iterrupt status */
630 reg_val = phy_read(phydev, MII_VSC85XX_INT_STATUS);
631
632 out_unlock:
633 mutex_unlock(&phydev->lock);
634
635 return rc;
636 }
637
638 static void vsc85xx_wol_get(struct phy_device *phydev,
639 struct ethtool_wolinfo *wol)
640 {
641 int rc;
642 u16 reg_val;
643 u8 i;
644 u16 pwd[3] = {0, 0, 0};
645 struct ethtool_wolinfo *wol_conf = wol;
646
647 mutex_lock(&phydev->lock);
648 rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2);
649 if (rc < 0)
650 goto out_unlock;
651
652 reg_val = __phy_read(phydev, MSCC_PHY_WOL_MAC_CONTROL);
653 if (reg_val & SECURE_ON_ENABLE)
654 wol_conf->wolopts |= WAKE_MAGICSECURE;
655 if (wol_conf->wolopts & WAKE_MAGICSECURE) {
656 pwd[0] = __phy_read(phydev, MSCC_PHY_WOL_LOWER_PASSWD);
657 pwd[1] = __phy_read(phydev, MSCC_PHY_WOL_MID_PASSWD);
658 pwd[2] = __phy_read(phydev, MSCC_PHY_WOL_UPPER_PASSWD);
659 for (i = 0; i < ARRAY_SIZE(pwd); i++) {
660 wol_conf->sopass[5 - i * 2] = pwd[i] & 0x00ff;
661 wol_conf->sopass[5 - (i * 2 + 1)] = (pwd[i] & 0xff00)
662 >> 8;
663 }
664 }
665
666 out_unlock:
667 phy_restore_page(phydev, rc, rc > 0 ? 0 : rc);
668 mutex_unlock(&phydev->lock);
669 }
670
671 #ifdef CONFIG_OF_MDIO
672 static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev)
673 {
674 u32 vdd, sd;
675 int i, j;
676 struct device *dev = &phydev->mdio.dev;
677 struct device_node *of_node = dev->of_node;
678 u8 sd_array_size = ARRAY_SIZE(edge_table[0].slowdown);
679
680 if (!of_node)
681 return -ENODEV;
682
683 if (of_property_read_u32(of_node, "vsc8531,vddmac", &vdd))
684 vdd = MSCC_VDDMAC_3300;
685
686 if (of_property_read_u32(of_node, "vsc8531,edge-slowdown", &sd))
687 sd = 0;
688
689 for (i = 0; i < ARRAY_SIZE(edge_table); i++)
690 if (edge_table[i].vddmac == vdd)
691 for (j = 0; j < sd_array_size; j++)
692 if (edge_table[i].slowdown[j] == sd)
693 return (sd_array_size - j - 1);
694
695 return -EINVAL;
696 }
697
698 static int vsc85xx_dt_led_mode_get(struct phy_device *phydev,
699 char *led,
700 u32 default_mode)
701 {
702 struct vsc8531_private *priv = phydev->priv;
703 struct device *dev = &phydev->mdio.dev;
704 struct device_node *of_node = dev->of_node;
705 u32 led_mode;
706 int err;
707
708 if (!of_node)
709 return -ENODEV;
710
711 led_mode = default_mode;
712 err = of_property_read_u32(of_node, led, &led_mode);
713 if (!err && !(BIT(led_mode) & priv->supp_led_modes)) {
714 phydev_err(phydev, "DT %s invalid\n", led);
715 return -EINVAL;
716 }
717
718 return led_mode;
719 }
720
721 #else
722 static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev)
723 {
724 return 0;
725 }
726
727 static int vsc85xx_dt_led_mode_get(struct phy_device *phydev,
728 char *led,
729 u8 default_mode)
730 {
731 return default_mode;
732 }
733 #endif /* CONFIG_OF_MDIO */
734
735 static int vsc85xx_dt_led_modes_get(struct phy_device *phydev,
736 u32 *default_mode)
737 {
738 struct vsc8531_private *priv = phydev->priv;
739 char led_dt_prop[28];
740 int i, ret;
741
742 for (i = 0; i < priv->nleds; i++) {
743 ret = sprintf(led_dt_prop, "vsc8531,led-%d-mode", i);
744 if (ret < 0)
745 return ret;
746
747 ret = vsc85xx_dt_led_mode_get(phydev, led_dt_prop,
748 default_mode[i]);
749 if (ret < 0)
750 return ret;
751 priv->leds_mode[i] = ret;
752 }
753
754 return 0;
755 }
756
757 static int vsc85xx_edge_rate_cntl_set(struct phy_device *phydev, u8 edge_rate)
758 {
759 int rc;
760
761 mutex_lock(&phydev->lock);
762 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_2,
763 MSCC_PHY_WOL_MAC_CONTROL, EDGE_RATE_CNTL_MASK,
764 edge_rate << EDGE_RATE_CNTL_POS);
765 mutex_unlock(&phydev->lock);
766
767 return rc;
768 }
769
770 static int vsc85xx_mac_if_set(struct phy_device *phydev,
771 phy_interface_t interface)
772 {
773 int rc;
774 u16 reg_val;
775
776 mutex_lock(&phydev->lock);
777 reg_val = phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_1);
778 reg_val &= ~(MAC_IF_SELECTION_MASK);
779 switch (interface) {
780 case PHY_INTERFACE_MODE_RGMII:
781 reg_val |= (MAC_IF_SELECTION_RGMII << MAC_IF_SELECTION_POS);
782 break;
783 case PHY_INTERFACE_MODE_RMII:
784 reg_val |= (MAC_IF_SELECTION_RMII << MAC_IF_SELECTION_POS);
785 break;
786 case PHY_INTERFACE_MODE_MII:
787 case PHY_INTERFACE_MODE_GMII:
788 reg_val |= (MAC_IF_SELECTION_GMII << MAC_IF_SELECTION_POS);
789 break;
790 default:
791 rc = -EINVAL;
792 goto out_unlock;
793 }
794 rc = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, reg_val);
795 if (rc)
796 goto out_unlock;
797
798 rc = genphy_soft_reset(phydev);
799
800 out_unlock:
801 mutex_unlock(&phydev->lock);
802
803 return rc;
804 }
805
806 static int vsc85xx_default_config(struct phy_device *phydev)
807 {
808 int rc;
809 u16 reg_val;
810
811 phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
812 mutex_lock(&phydev->lock);
813 rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2);
814 if (rc < 0)
815 goto out_unlock;
816
817 reg_val = phy_read(phydev, MSCC_PHY_RGMII_CNTL);
818 reg_val &= ~(RGMII_RX_CLK_DELAY_MASK);
819 reg_val |= (RGMII_RX_CLK_DELAY_1_1_NS << RGMII_RX_CLK_DELAY_POS);
820 phy_write(phydev, MSCC_PHY_RGMII_CNTL, reg_val);
821
822 out_unlock:
823 rc = phy_restore_page(phydev, rc, rc > 0 ? 0 : rc);
824 mutex_unlock(&phydev->lock);
825
826 return rc;
827 }
828
829 static int vsc85xx_get_tunable(struct phy_device *phydev,
830 struct ethtool_tunable *tuna, void *data)
831 {
832 switch (tuna->id) {
833 case ETHTOOL_PHY_DOWNSHIFT:
834 return vsc85xx_downshift_get(phydev, (u8 *)data);
835 default:
836 return -EINVAL;
837 }
838 }
839
840 static int vsc85xx_set_tunable(struct phy_device *phydev,
841 struct ethtool_tunable *tuna,
842 const void *data)
843 {
844 switch (tuna->id) {
845 case ETHTOOL_PHY_DOWNSHIFT:
846 return vsc85xx_downshift_set(phydev, *(u8 *)data);
847 default:
848 return -EINVAL;
849 }
850 }
851
852 /* mdiobus lock should be locked when using this function */
853 static void vsc85xx_tr_write(struct phy_device *phydev, u16 addr, u32 val)
854 {
855 __phy_write(phydev, MSCC_PHY_TR_MSB, val >> 16);
856 __phy_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0));
857 __phy_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr));
858 }
859
860 static int vsc85xx_eee_init_seq_set(struct phy_device *phydev)
861 {
862 const struct reg_val init_eee[] = {
863 {0x0f82, 0x0012b00a},
864 {0x1686, 0x00000004},
865 {0x168c, 0x00d2c46f},
866 {0x17a2, 0x00000620},
867 {0x16a0, 0x00eeffdd},
868 {0x16a6, 0x00071448},
869 {0x16a4, 0x0013132f},
870 {0x16a8, 0x00000000},
871 {0x0ffc, 0x00c0a028},
872 {0x0fe8, 0x0091b06c},
873 {0x0fea, 0x00041600},
874 {0x0f80, 0x00000af4},
875 {0x0fec, 0x00901809},
876 {0x0fee, 0x0000a6a1},
877 {0x0ffe, 0x00b01007},
878 {0x16b0, 0x00eeff00},
879 {0x16b2, 0x00007000},
880 {0x16b4, 0x00000814},
881 };
882 unsigned int i;
883 int oldpage;
884
885 mutex_lock(&phydev->lock);
886 oldpage = phy_select_page(phydev, MSCC_PHY_PAGE_TR);
887 if (oldpage < 0)
888 goto out_unlock;
889
890 for (i = 0; i < ARRAY_SIZE(init_eee); i++)
891 vsc85xx_tr_write(phydev, init_eee[i].reg, init_eee[i].val);
892
893 out_unlock:
894 oldpage = phy_restore_page(phydev, oldpage, oldpage);
895 mutex_unlock(&phydev->lock);
896
897 return oldpage;
898 }
899
900 /* phydev->bus->mdio_lock should be locked when using this function */
901 static int phy_base_write(struct phy_device *phydev, u32 regnum, u16 val)
902 {
903 struct vsc8531_private *priv = phydev->priv;
904
905 if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) {
906 dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n");
907 dump_stack();
908 }
909
910 return __mdiobus_write(phydev->mdio.bus, priv->base_addr, regnum, val);
911 }
912
913 /* phydev->bus->mdio_lock should be locked when using this function */
914 static int phy_base_read(struct phy_device *phydev, u32 regnum)
915 {
916 struct vsc8531_private *priv = phydev->priv;
917
918 if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) {
919 dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n");
920 dump_stack();
921 }
922
923 return __mdiobus_read(phydev->mdio.bus, priv->base_addr, regnum);
924 }
925
926 /* bus->mdio_lock should be locked when using this function */
927 static void vsc8584_csr_write(struct phy_device *phydev, u16 addr, u32 val)
928 {
929 phy_base_write(phydev, MSCC_PHY_TR_MSB, val >> 16);
930 phy_base_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0));
931 phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr));
932 }
933
934 /* bus->mdio_lock should be locked when using this function */
935 static int vsc8584_cmd(struct phy_device *phydev, u16 val)
936 {
937 unsigned long deadline;
938 u16 reg_val;
939
940 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
941 MSCC_PHY_PAGE_EXTENDED_GPIO);
942
943 phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NCOMPLETED | val);
944
945 deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
946 do {
947 reg_val = phy_base_read(phydev, MSCC_PHY_PROC_CMD);
948 } while (time_before(jiffies, deadline) &&
949 (reg_val & PROC_CMD_NCOMPLETED) &&
950 !(reg_val & PROC_CMD_FAILED));
951
952 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
953
954 if (reg_val & PROC_CMD_FAILED)
955 return -EIO;
956
957 if (reg_val & PROC_CMD_NCOMPLETED)
958 return -ETIMEDOUT;
959
960 return 0;
961 }
962
963 /* bus->mdio_lock should be locked when using this function */
964 static int vsc8584_micro_deassert_reset(struct phy_device *phydev,
965 bool patch_en)
966 {
967 u32 enable, release;
968
969 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
970 MSCC_PHY_PAGE_EXTENDED_GPIO);
971
972 enable = RUN_FROM_INT_ROM | MICRO_CLK_EN | DW8051_CLK_EN;
973 release = MICRO_NSOFT_RESET | RUN_FROM_INT_ROM | DW8051_CLK_EN |
974 MICRO_CLK_EN;
975
976 if (patch_en) {
977 enable |= MICRO_PATCH_EN;
978 release |= MICRO_PATCH_EN;
979
980 /* Clear all patches */
981 phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM);
982 }
983
984 /* Enable 8051 Micro clock; CLEAR/SET patch present; disable PRAM clock
985 * override and addr. auto-incr; operate at 125 MHz
986 */
987 phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, enable);
988 /* Release 8051 Micro SW reset */
989 phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, release);
990
991 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
992
993 return 0;
994 }
995
996 /* bus->mdio_lock should be locked when using this function */
997 static int vsc8584_micro_assert_reset(struct phy_device *phydev)
998 {
999 int ret;
1000 u16 reg;
1001
1002 ret = vsc8584_cmd(phydev, PROC_CMD_NOP);
1003 if (ret)
1004 return ret;
1005
1006 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1007 MSCC_PHY_PAGE_EXTENDED_GPIO);
1008
1009 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
1010 reg &= ~EN_PATCH_RAM_TRAP_ADDR(4);
1011 phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
1012
1013 phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(4), 0x005b);
1014 phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(4), 0x005b);
1015
1016 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
1017 reg |= EN_PATCH_RAM_TRAP_ADDR(4);
1018 phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
1019
1020 phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NOP);
1021
1022 reg = phy_base_read(phydev, MSCC_DW8051_CNTL_STATUS);
1023 reg &= ~MICRO_NSOFT_RESET;
1024 phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, reg);
1025
1026 phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_MCB_ACCESS_MAC_CONF |
1027 PROC_CMD_SGMII_PORT(0) | PROC_CMD_NO_MAC_CONF |
1028 PROC_CMD_READ);
1029
1030 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
1031 reg &= ~EN_PATCH_RAM_TRAP_ADDR(4);
1032 phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
1033
1034 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1035
1036 return 0;
1037 }
1038
1039 /* bus->mdio_lock should be locked when using this function */
1040 static int vsc8584_get_fw_crc(struct phy_device *phydev, u16 start, u16 size,
1041 u16 *crc)
1042 {
1043 int ret;
1044
1045 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);
1046
1047 phy_base_write(phydev, MSCC_PHY_VERIPHY_CNTL_2, start);
1048 phy_base_write(phydev, MSCC_PHY_VERIPHY_CNTL_3, size);
1049
1050 /* Start Micro command */
1051 ret = vsc8584_cmd(phydev, PROC_CMD_CRC16);
1052 if (ret)
1053 goto out;
1054
1055 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);
1056
1057 *crc = phy_base_read(phydev, MSCC_PHY_VERIPHY_CNTL_2);
1058
1059 out:
1060 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1061
1062 return ret;
1063 }
1064
1065 /* bus->mdio_lock should be locked when using this function */
1066 static int vsc8584_patch_fw(struct phy_device *phydev,
1067 const struct firmware *fw)
1068 {
1069 int i, ret;
1070
1071 ret = vsc8584_micro_assert_reset(phydev);
1072 if (ret) {
1073 dev_err(&phydev->mdio.dev,
1074 "%s: failed to assert reset of micro\n", __func__);
1075 return ret;
1076 }
1077
1078 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1079 MSCC_PHY_PAGE_EXTENDED_GPIO);
1080
1081 /* Hold 8051 Micro in SW Reset, Enable auto incr address and patch clock
1082 * Disable the 8051 Micro clock
1083 */
1084 phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, RUN_FROM_INT_ROM |
1085 AUTOINC_ADDR | PATCH_RAM_CLK | MICRO_CLK_EN |
1086 MICRO_CLK_DIVIDE(2));
1087 phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_PRAM | INT_MEM_WRITE_EN |
1088 INT_MEM_DATA(2));
1089 phy_base_write(phydev, MSCC_INT_MEM_ADDR, 0x0000);
1090
1091 for (i = 0; i < fw->size; i++)
1092 phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_PRAM |
1093 INT_MEM_WRITE_EN | fw->data[i]);
1094
1095 /* Clear internal memory access */
1096 phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM);
1097
1098 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1099
1100 return 0;
1101 }
1102
1103 /* bus->mdio_lock should be locked when using this function */
1104 static bool vsc8574_is_serdes_init(struct phy_device *phydev)
1105 {
1106 u16 reg;
1107 bool ret;
1108
1109 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1110 MSCC_PHY_PAGE_EXTENDED_GPIO);
1111
1112 reg = phy_base_read(phydev, MSCC_TRAP_ROM_ADDR(1));
1113 if (reg != 0x3eb7) {
1114 ret = false;
1115 goto out;
1116 }
1117
1118 reg = phy_base_read(phydev, MSCC_PATCH_RAM_ADDR(1));
1119 if (reg != 0x4012) {
1120 ret = false;
1121 goto out;
1122 }
1123
1124 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
1125 if (reg != EN_PATCH_RAM_TRAP_ADDR(1)) {
1126 ret = false;
1127 goto out;
1128 }
1129
1130 reg = phy_base_read(phydev, MSCC_DW8051_CNTL_STATUS);
1131 if ((MICRO_NSOFT_RESET | RUN_FROM_INT_ROM | DW8051_CLK_EN |
1132 MICRO_CLK_EN) != (reg & MSCC_DW8051_VLD_MASK)) {
1133 ret = false;
1134 goto out;
1135 }
1136
1137 ret = true;
1138 out:
1139 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1140
1141 return ret;
1142 }
1143
1144 /* bus->mdio_lock should be locked when using this function */
1145 static int vsc8574_config_pre_init(struct phy_device *phydev)
1146 {
1147 const struct reg_val pre_init1[] = {
1148 {0x0fae, 0x000401bd},
1149 {0x0fac, 0x000f000f},
1150 {0x17a0, 0x00a0f147},
1151 {0x0fe4, 0x00052f54},
1152 {0x1792, 0x0027303d},
1153 {0x07fe, 0x00000704},
1154 {0x0fe0, 0x00060150},
1155 {0x0f82, 0x0012b00a},
1156 {0x0f80, 0x00000d74},
1157 {0x02e0, 0x00000012},
1158 {0x03a2, 0x00050208},
1159 {0x03b2, 0x00009186},
1160 {0x0fb0, 0x000e3700},
1161 {0x1688, 0x00049f81},
1162 {0x0fd2, 0x0000ffff},
1163 {0x168a, 0x00039fa2},
1164 {0x1690, 0x0020640b},
1165 {0x0258, 0x00002220},
1166 {0x025a, 0x00002a20},
1167 {0x025c, 0x00003060},
1168 {0x025e, 0x00003fa0},
1169 {0x03a6, 0x0000e0f0},
1170 {0x0f92, 0x00001489},
1171 {0x16a2, 0x00007000},
1172 {0x16a6, 0x00071448},
1173 {0x16a0, 0x00eeffdd},
1174 {0x0fe8, 0x0091b06c},
1175 {0x0fea, 0x00041600},
1176 {0x16b0, 0x00eeff00},
1177 {0x16b2, 0x00007000},
1178 {0x16b4, 0x00000814},
1179 {0x0f90, 0x00688980},
1180 {0x03a4, 0x0000d8f0},
1181 {0x0fc0, 0x00000400},
1182 {0x07fa, 0x0050100f},
1183 {0x0796, 0x00000003},
1184 {0x07f8, 0x00c3ff98},
1185 {0x0fa4, 0x0018292a},
1186 {0x168c, 0x00d2c46f},
1187 {0x17a2, 0x00000620},
1188 {0x16a4, 0x0013132f},
1189 {0x16a8, 0x00000000},
1190 {0x0ffc, 0x00c0a028},
1191 {0x0fec, 0x00901c09},
1192 {0x0fee, 0x0004a6a1},
1193 {0x0ffe, 0x00b01807},
1194 };
1195 const struct reg_val pre_init2[] = {
1196 {0x0486, 0x0008a518},
1197 {0x0488, 0x006dc696},
1198 {0x048a, 0x00000912},
1199 {0x048e, 0x00000db6},
1200 {0x049c, 0x00596596},
1201 {0x049e, 0x00000514},
1202 {0x04a2, 0x00410280},
1203 {0x04a4, 0x00000000},
1204 {0x04a6, 0x00000000},
1205 {0x04a8, 0x00000000},
1206 {0x04aa, 0x00000000},
1207 {0x04ae, 0x007df7dd},
1208 {0x04b0, 0x006d95d4},
1209 {0x04b2, 0x00492410},
1210 };
1211 struct device *dev = &phydev->mdio.dev;
1212 const struct firmware *fw;
1213 unsigned int i;
1214 u16 crc, reg;
1215 bool serdes_init;
1216 int ret;
1217
1218 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1219
1220 /* all writes below are broadcasted to all PHYs in the same package */
1221 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
1222 reg |= SMI_BROADCAST_WR_EN;
1223 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
1224
1225 phy_base_write(phydev, MII_VSC85XX_INT_MASK, 0);
1226
1227 /* The below register writes are tweaking analog and electrical
1228 * configuration that were determined through characterization by PHY
1229 * engineers. These don't mean anything more than "these are the best
1230 * values".
1231 */
1232 phy_base_write(phydev, MSCC_PHY_EXT_PHY_CNTL_2, 0x0040);
1233
1234 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
1235
1236 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_20, 0x4320);
1237 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_24, 0x0c00);
1238 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_9, 0x18ca);
1239 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_5, 0x1b20);
1240
1241 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
1242 reg |= 0x8000;
1243 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
1244
1245 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
1246
1247 for (i = 0; i < ARRAY_SIZE(pre_init1); i++)
1248 vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val);
1249
1250 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_2);
1251
1252 phy_base_write(phydev, MSCC_PHY_CU_PMD_TX_CNTL, 0x028e);
1253
1254 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
1255
1256 for (i = 0; i < ARRAY_SIZE(pre_init2); i++)
1257 vsc8584_csr_write(phydev, pre_init2[i].reg, pre_init2[i].val);
1258
1259 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
1260
1261 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
1262 reg &= ~0x8000;
1263 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
1264
1265 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1266
1267 /* end of write broadcasting */
1268 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
1269 reg &= ~SMI_BROADCAST_WR_EN;
1270 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
1271
1272 ret = request_firmware(&fw, MSCC_VSC8574_REVB_INT8051_FW, dev);
1273 if (ret) {
1274 dev_err(dev, "failed to load firmware %s, ret: %d\n",
1275 MSCC_VSC8574_REVB_INT8051_FW, ret);
1276 return ret;
1277 }
1278
1279 /* Add one byte to size for the one added by the patch_fw function */
1280 ret = vsc8584_get_fw_crc(phydev,
1281 MSCC_VSC8574_REVB_INT8051_FW_START_ADDR,
1282 fw->size + 1, &crc);
1283 if (ret)
1284 goto out;
1285
1286 if (crc == MSCC_VSC8574_REVB_INT8051_FW_CRC) {
1287 serdes_init = vsc8574_is_serdes_init(phydev);
1288
1289 if (!serdes_init) {
1290 ret = vsc8584_micro_assert_reset(phydev);
1291 if (ret) {
1292 dev_err(dev,
1293 "%s: failed to assert reset of micro\n",
1294 __func__);
1295 goto out;
1296 }
1297 }
1298 } else {
1299 dev_dbg(dev, "FW CRC is not the expected one, patching FW\n");
1300
1301 serdes_init = false;
1302
1303 if (vsc8584_patch_fw(phydev, fw))
1304 dev_warn(dev,
1305 "failed to patch FW, expect non-optimal device\n");
1306 }
1307
1308 if (!serdes_init) {
1309 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1310 MSCC_PHY_PAGE_EXTENDED_GPIO);
1311
1312 phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), 0x3eb7);
1313 phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), 0x4012);
1314 phy_base_write(phydev, MSCC_INT_MEM_CNTL,
1315 EN_PATCH_RAM_TRAP_ADDR(1));
1316
1317 vsc8584_micro_deassert_reset(phydev, false);
1318
1319 /* Add one byte to size for the one added by the patch_fw
1320 * function
1321 */
1322 ret = vsc8584_get_fw_crc(phydev,
1323 MSCC_VSC8574_REVB_INT8051_FW_START_ADDR,
1324 fw->size + 1, &crc);
1325 if (ret)
1326 goto out;
1327
1328 if (crc != MSCC_VSC8574_REVB_INT8051_FW_CRC)
1329 dev_warn(dev,
1330 "FW CRC after patching is not the expected one, expect non-optimal device\n");
1331 }
1332
1333 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1334 MSCC_PHY_PAGE_EXTENDED_GPIO);
1335
1336 ret = vsc8584_cmd(phydev, PROC_CMD_1588_DEFAULT_INIT |
1337 PROC_CMD_PHY_INIT);
1338
1339 out:
1340 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1341
1342 release_firmware(fw);
1343
1344 return ret;
1345 }
1346
1347 /* bus->mdio_lock should be locked when using this function */
1348 static int vsc8584_config_pre_init(struct phy_device *phydev)
1349 {
1350 const struct reg_val pre_init1[] = {
1351 {0x07fa, 0x0050100f},
1352 {0x1688, 0x00049f81},
1353 {0x0f90, 0x00688980},
1354 {0x03a4, 0x0000d8f0},
1355 {0x0fc0, 0x00000400},
1356 {0x0f82, 0x0012b002},
1357 {0x1686, 0x00000004},
1358 {0x168c, 0x00d2c46f},
1359 {0x17a2, 0x00000620},
1360 {0x16a0, 0x00eeffdd},
1361 {0x16a6, 0x00071448},
1362 {0x16a4, 0x0013132f},
1363 {0x16a8, 0x00000000},
1364 {0x0ffc, 0x00c0a028},
1365 {0x0fe8, 0x0091b06c},
1366 {0x0fea, 0x00041600},
1367 {0x0f80, 0x00fffaff},
1368 {0x0fec, 0x00901809},
1369 {0x0ffe, 0x00b01007},
1370 {0x16b0, 0x00eeff00},
1371 {0x16b2, 0x00007000},
1372 {0x16b4, 0x00000814},
1373 };
1374 const struct reg_val pre_init2[] = {
1375 {0x0486, 0x0008a518},
1376 {0x0488, 0x006dc696},
1377 {0x048a, 0x00000912},
1378 };
1379 const struct firmware *fw;
1380 struct device *dev = &phydev->mdio.dev;
1381 unsigned int i;
1382 u16 crc, reg;
1383 int ret;
1384
1385 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1386
1387 /* all writes below are broadcasted to all PHYs in the same package */
1388 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
1389 reg |= SMI_BROADCAST_WR_EN;
1390 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
1391
1392 phy_base_write(phydev, MII_VSC85XX_INT_MASK, 0);
1393
1394 reg = phy_base_read(phydev, MSCC_PHY_BYPASS_CONTROL);
1395 reg |= PARALLEL_DET_IGNORE_ADVERTISED;
1396 phy_base_write(phydev, MSCC_PHY_BYPASS_CONTROL, reg);
1397
1398 /* The below register writes are tweaking analog and electrical
1399 * configuration that were determined through characterization by PHY
1400 * engineers. These don't mean anything more than "these are the best
1401 * values".
1402 */
1403 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_3);
1404
1405 phy_base_write(phydev, MSCC_PHY_SERDES_TX_CRC_ERR_CNT, 0x2000);
1406
1407 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
1408
1409 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_5, 0x1f20);
1410
1411 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
1412 reg |= 0x8000;
1413 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
1414
1415 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
1416
1417 phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(0x2fa4));
1418
1419 reg = phy_base_read(phydev, MSCC_PHY_TR_MSB);
1420 reg &= ~0x007f;
1421 reg |= 0x0019;
1422 phy_base_write(phydev, MSCC_PHY_TR_MSB, reg);
1423
1424 phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(0x0fa4));
1425
1426 for (i = 0; i < ARRAY_SIZE(pre_init1); i++)
1427 vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val);
1428
1429 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_2);
1430
1431 phy_base_write(phydev, MSCC_PHY_CU_PMD_TX_CNTL, 0x028e);
1432
1433 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
1434
1435 for (i = 0; i < ARRAY_SIZE(pre_init2); i++)
1436 vsc8584_csr_write(phydev, pre_init2[i].reg, pre_init2[i].val);
1437
1438 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
1439
1440 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
1441 reg &= ~0x8000;
1442 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
1443
1444 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1445
1446 /* end of write broadcasting */
1447 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
1448 reg &= ~SMI_BROADCAST_WR_EN;
1449 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
1450
1451 ret = request_firmware(&fw, MSCC_VSC8584_REVB_INT8051_FW, dev);
1452 if (ret) {
1453 dev_err(dev, "failed to load firmware %s, ret: %d\n",
1454 MSCC_VSC8584_REVB_INT8051_FW, ret);
1455 return ret;
1456 }
1457
1458 /* Add one byte to size for the one added by the patch_fw function */
1459 ret = vsc8584_get_fw_crc(phydev,
1460 MSCC_VSC8584_REVB_INT8051_FW_START_ADDR,
1461 fw->size + 1, &crc);
1462 if (ret)
1463 goto out;
1464
1465 if (crc != MSCC_VSC8584_REVB_INT8051_FW_CRC) {
1466 dev_dbg(dev, "FW CRC is not the expected one, patching FW\n");
1467 if (vsc8584_patch_fw(phydev, fw))
1468 dev_warn(dev,
1469 "failed to patch FW, expect non-optimal device\n");
1470 }
1471
1472 vsc8584_micro_deassert_reset(phydev, false);
1473
1474 /* Add one byte to size for the one added by the patch_fw function */
1475 ret = vsc8584_get_fw_crc(phydev,
1476 MSCC_VSC8584_REVB_INT8051_FW_START_ADDR,
1477 fw->size + 1, &crc);
1478 if (ret)
1479 goto out;
1480
1481 if (crc != MSCC_VSC8584_REVB_INT8051_FW_CRC)
1482 dev_warn(dev,
1483 "FW CRC after patching is not the expected one, expect non-optimal device\n");
1484
1485 ret = vsc8584_micro_assert_reset(phydev);
1486 if (ret)
1487 goto out;
1488
1489 vsc8584_micro_deassert_reset(phydev, true);
1490
1491 out:
1492 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1493
1494 release_firmware(fw);
1495
1496 return ret;
1497 }
1498
1499 /* Check if one PHY has already done the init of the parts common to all PHYs
1500 * in the Quad PHY package.
1501 */
1502 static bool vsc8584_is_pkg_init(struct phy_device *phydev, bool reversed)
1503 {
1504 struct mdio_device **map = phydev->mdio.bus->mdio_map;
1505 struct vsc8531_private *vsc8531;
1506 struct phy_device *phy;
1507 int i, addr;
1508
1509 /* VSC8584 is a Quad PHY */
1510 for (i = 0; i < 4; i++) {
1511 vsc8531 = phydev->priv;
1512
1513 if (reversed)
1514 addr = vsc8531->base_addr - i;
1515 else
1516 addr = vsc8531->base_addr + i;
1517
1518 phy = container_of(map[addr], struct phy_device, mdio);
1519
1520 if ((phy->phy_id & phydev->drv->phy_id_mask) !=
1521 (phydev->drv->phy_id & phydev->drv->phy_id_mask))
1522 continue;
1523
1524 vsc8531 = phy->priv;
1525
1526 if (vsc8531 && vsc8531->pkg_init)
1527 return true;
1528 }
1529
1530 return false;
1531 }
1532
1533 static int vsc8584_config_init(struct phy_device *phydev)
1534 {
1535 struct vsc8531_private *vsc8531 = phydev->priv;
1536 u16 addr, val;
1537 int ret, i;
1538
1539 phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
1540
1541 mutex_lock(&phydev->mdio.bus->mdio_lock);
1542
1543 __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr,
1544 MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);
1545 addr = __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr,
1546 MSCC_PHY_EXT_PHY_CNTL_4);
1547 addr >>= PHY_CNTL_4_ADDR_POS;
1548
1549 val = __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr,
1550 MSCC_PHY_ACTIPHY_CNTL);
1551 if (val & PHY_ADDR_REVERSED)
1552 vsc8531->base_addr = phydev->mdio.addr + addr;
1553 else
1554 vsc8531->base_addr = phydev->mdio.addr - addr;
1555
1556 /* Some parts of the init sequence are identical for every PHY in the
1557 * package. Some parts are modifying the GPIO register bank which is a
1558 * set of registers that are affecting all PHYs, a few resetting the
1559 * microprocessor common to all PHYs. The CRC check responsible of the
1560 * checking the firmware within the 8051 microprocessor can only be
1561 * accessed via the PHY whose internal address in the package is 0.
1562 * All PHYs' interrupts mask register has to be zeroed before enabling
1563 * any PHY's interrupt in this register.
1564 * For all these reasons, we need to do the init sequence once and only
1565 * once whatever is the first PHY in the package that is initialized and
1566 * do the correct init sequence for all PHYs that are package-critical
1567 * in this pre-init function.
1568 */
1569 if (!vsc8584_is_pkg_init(phydev, val & PHY_ADDR_REVERSED ? 1 : 0)) {
1570 if ((phydev->phy_id & phydev->drv->phy_id_mask) ==
1571 (PHY_ID_VSC8574 & phydev->drv->phy_id_mask))
1572 ret = vsc8574_config_pre_init(phydev);
1573 else if ((phydev->phy_id & phydev->drv->phy_id_mask) ==
1574 (PHY_ID_VSC8584 & phydev->drv->phy_id_mask))
1575 ret = vsc8584_config_pre_init(phydev);
1576 else
1577 ret = -EINVAL;
1578
1579 if (ret)
1580 goto err;
1581 }
1582
1583 vsc8531->pkg_init = true;
1584
1585 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
1586 MSCC_PHY_PAGE_EXTENDED_GPIO);
1587
1588 val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK);
1589 val &= ~MAC_CFG_MASK;
1590 if (phydev->interface == PHY_INTERFACE_MODE_QSGMII)
1591 val |= MAC_CFG_QSGMII;
1592 else
1593 val |= MAC_CFG_SGMII;
1594
1595 ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val);
1596 if (ret)
1597 goto err;
1598
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 /* Disable SerDes for 100Base-FX */
1613 ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF |
1614 PROC_CMD_FIBER_PORT(addr) | PROC_CMD_FIBER_DISABLE |
1615 PROC_CMD_READ_MOD_WRITE_PORT |
1616 PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_100BASE_FX);
1617 if (ret)
1618 goto err;
1619
1620 /* Disable SerDes for 1000Base-X */
1621 ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF |
1622 PROC_CMD_FIBER_PORT(addr) | PROC_CMD_FIBER_DISABLE |
1623 PROC_CMD_READ_MOD_WRITE_PORT |
1624 PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_1000BASE_X);
1625 if (ret)
1626 goto err;
1627
1628 mutex_unlock(&phydev->mdio.bus->mdio_lock);
1629
1630 phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
1631
1632 val = phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_1);
1633 val &= ~(MEDIA_OP_MODE_MASK | VSC8584_MAC_IF_SELECTION_MASK);
1634 val |= MEDIA_OP_MODE_COPPER | (VSC8584_MAC_IF_SELECTION_SGMII <<
1635 VSC8584_MAC_IF_SELECTION_POS);
1636 ret = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, val);
1637
1638 ret = genphy_soft_reset(phydev);
1639 if (ret)
1640 return ret;
1641
1642 for (i = 0; i < vsc8531->nleds; i++) {
1643 ret = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]);
1644 if (ret)
1645 return ret;
1646 }
1647
1648 return genphy_config_init(phydev);
1649
1650 err:
1651 mutex_unlock(&phydev->mdio.bus->mdio_lock);
1652 return ret;
1653 }
1654
1655 static int vsc85xx_config_init(struct phy_device *phydev)
1656 {
1657 int rc, i;
1658 struct vsc8531_private *vsc8531 = phydev->priv;
1659
1660 rc = vsc85xx_default_config(phydev);
1661 if (rc)
1662 return rc;
1663
1664 rc = vsc85xx_mac_if_set(phydev, phydev->interface);
1665 if (rc)
1666 return rc;
1667
1668 rc = vsc85xx_edge_rate_cntl_set(phydev, vsc8531->rate_magic);
1669 if (rc)
1670 return rc;
1671
1672 rc = vsc85xx_eee_init_seq_set(phydev);
1673 if (rc)
1674 return rc;
1675
1676 for (i = 0; i < vsc8531->nleds; i++) {
1677 rc = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]);
1678 if (rc)
1679 return rc;
1680 }
1681
1682 return genphy_config_init(phydev);
1683 }
1684
1685 static int vsc8584_did_interrupt(struct phy_device *phydev)
1686 {
1687 int rc = 0;
1688
1689 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
1690 rc = phy_read(phydev, MII_VSC85XX_INT_STATUS);
1691
1692 return (rc < 0) ? 0 : rc & MII_VSC85XX_INT_MASK_MASK;
1693 }
1694
1695 static int vsc85xx_ack_interrupt(struct phy_device *phydev)
1696 {
1697 int rc = 0;
1698
1699 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
1700 rc = phy_read(phydev, MII_VSC85XX_INT_STATUS);
1701
1702 return (rc < 0) ? rc : 0;
1703 }
1704
1705 static int vsc85xx_config_intr(struct phy_device *phydev)
1706 {
1707 int rc;
1708
1709 if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
1710 rc = phy_write(phydev, MII_VSC85XX_INT_MASK,
1711 MII_VSC85XX_INT_MASK_MASK);
1712 } else {
1713 rc = phy_write(phydev, MII_VSC85XX_INT_MASK, 0);
1714 if (rc < 0)
1715 return rc;
1716 rc = phy_read(phydev, MII_VSC85XX_INT_STATUS);
1717 }
1718
1719 return rc;
1720 }
1721
1722 static int vsc85xx_config_aneg(struct phy_device *phydev)
1723 {
1724 int rc;
1725
1726 rc = vsc85xx_mdix_set(phydev, phydev->mdix_ctrl);
1727 if (rc < 0)
1728 return rc;
1729
1730 return genphy_config_aneg(phydev);
1731 }
1732
1733 static int vsc85xx_read_status(struct phy_device *phydev)
1734 {
1735 int rc;
1736
1737 rc = vsc85xx_mdix_get(phydev, &phydev->mdix);
1738 if (rc < 0)
1739 return rc;
1740
1741 return genphy_read_status(phydev);
1742 }
1743
1744 static int vsc8574_probe(struct phy_device *phydev)
1745 {
1746 struct vsc8531_private *vsc8531;
1747 u32 default_mode[4] = {VSC8531_LINK_1000_ACTIVITY,
1748 VSC8531_LINK_100_ACTIVITY, VSC8531_LINK_ACTIVITY,
1749 VSC8531_DUPLEX_COLLISION};
1750
1751 vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL);
1752 if (!vsc8531)
1753 return -ENOMEM;
1754
1755 phydev->priv = vsc8531;
1756
1757 vsc8531->nleds = 4;
1758 vsc8531->supp_led_modes = VSC8584_SUPP_LED_MODES;
1759 vsc8531->hw_stats = vsc8584_hw_stats;
1760 vsc8531->nstats = ARRAY_SIZE(vsc8584_hw_stats);
1761 vsc8531->stats = devm_kmalloc_array(&phydev->mdio.dev, vsc8531->nstats,
1762 sizeof(u64), GFP_KERNEL);
1763 if (!vsc8531->stats)
1764 return -ENOMEM;
1765
1766 return vsc85xx_dt_led_modes_get(phydev, default_mode);
1767 }
1768
1769 static int vsc8584_probe(struct phy_device *phydev)
1770 {
1771 struct vsc8531_private *vsc8531;
1772 u32 default_mode[4] = {VSC8531_LINK_1000_ACTIVITY,
1773 VSC8531_LINK_100_ACTIVITY, VSC8531_LINK_ACTIVITY,
1774 VSC8531_DUPLEX_COLLISION};
1775
1776 if ((phydev->phy_id & MSCC_DEV_REV_MASK) != VSC8584_REVB) {
1777 dev_err(&phydev->mdio.dev, "Only VSC8584 revB is supported.\n");
1778 return -ENOTSUPP;
1779 }
1780
1781 vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL);
1782 if (!vsc8531)
1783 return -ENOMEM;
1784
1785 phydev->priv = vsc8531;
1786
1787 vsc8531->nleds = 4;
1788 vsc8531->supp_led_modes = VSC8584_SUPP_LED_MODES;
1789 vsc8531->hw_stats = vsc8584_hw_stats;
1790 vsc8531->nstats = ARRAY_SIZE(vsc8584_hw_stats);
1791 vsc8531->stats = devm_kmalloc_array(&phydev->mdio.dev, vsc8531->nstats,
1792 sizeof(u64), GFP_KERNEL);
1793 if (!vsc8531->stats)
1794 return -ENOMEM;
1795
1796 return vsc85xx_dt_led_modes_get(phydev, default_mode);
1797 }
1798
1799 static int vsc85xx_probe(struct phy_device *phydev)
1800 {
1801 struct vsc8531_private *vsc8531;
1802 int rate_magic;
1803 u32 default_mode[2] = {VSC8531_LINK_1000_ACTIVITY,
1804 VSC8531_LINK_100_ACTIVITY};
1805
1806 rate_magic = vsc85xx_edge_rate_magic_get(phydev);
1807 if (rate_magic < 0)
1808 return rate_magic;
1809
1810 vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL);
1811 if (!vsc8531)
1812 return -ENOMEM;
1813
1814 phydev->priv = vsc8531;
1815
1816 vsc8531->rate_magic = rate_magic;
1817 vsc8531->nleds = 2;
1818 vsc8531->supp_led_modes = VSC85XX_SUPP_LED_MODES;
1819 vsc8531->hw_stats = vsc85xx_hw_stats;
1820 vsc8531->nstats = ARRAY_SIZE(vsc85xx_hw_stats);
1821 vsc8531->stats = devm_kmalloc_array(&phydev->mdio.dev, vsc8531->nstats,
1822 sizeof(u64), GFP_KERNEL);
1823 if (!vsc8531->stats)
1824 return -ENOMEM;
1825
1826 return vsc85xx_dt_led_modes_get(phydev, default_mode);
1827 }
1828
1829 /* Microsemi VSC85xx PHYs */
1830 static struct phy_driver vsc85xx_driver[] = {
1831 {
1832 .phy_id = PHY_ID_VSC8530,
1833 .name = "Microsemi FE VSC8530",
1834 .phy_id_mask = 0xfffffff0,
1835 .features = PHY_BASIC_FEATURES,
1836 .flags = PHY_HAS_INTERRUPT,
1837 .soft_reset = &genphy_soft_reset,
1838 .config_init = &vsc85xx_config_init,
1839 .config_aneg = &vsc85xx_config_aneg,
1840 .aneg_done = &genphy_aneg_done,
1841 .read_status = &vsc85xx_read_status,
1842 .ack_interrupt = &vsc85xx_ack_interrupt,
1843 .config_intr = &vsc85xx_config_intr,
1844 .suspend = &genphy_suspend,
1845 .resume = &genphy_resume,
1846 .probe = &vsc85xx_probe,
1847 .set_wol = &vsc85xx_wol_set,
1848 .get_wol = &vsc85xx_wol_get,
1849 .get_tunable = &vsc85xx_get_tunable,
1850 .set_tunable = &vsc85xx_set_tunable,
1851 .read_page = &vsc85xx_phy_read_page,
1852 .write_page = &vsc85xx_phy_write_page,
1853 .get_sset_count = &vsc85xx_get_sset_count,
1854 .get_strings = &vsc85xx_get_strings,
1855 .get_stats = &vsc85xx_get_stats,
1856 },
1857 {
1858 .phy_id = PHY_ID_VSC8531,
1859 .name = "Microsemi VSC8531",
1860 .phy_id_mask = 0xfffffff0,
1861 .features = PHY_GBIT_FEATURES,
1862 .flags = PHY_HAS_INTERRUPT,
1863 .soft_reset = &genphy_soft_reset,
1864 .config_init = &vsc85xx_config_init,
1865 .config_aneg = &vsc85xx_config_aneg,
1866 .aneg_done = &genphy_aneg_done,
1867 .read_status = &vsc85xx_read_status,
1868 .ack_interrupt = &vsc85xx_ack_interrupt,
1869 .config_intr = &vsc85xx_config_intr,
1870 .suspend = &genphy_suspend,
1871 .resume = &genphy_resume,
1872 .probe = &vsc85xx_probe,
1873 .set_wol = &vsc85xx_wol_set,
1874 .get_wol = &vsc85xx_wol_get,
1875 .get_tunable = &vsc85xx_get_tunable,
1876 .set_tunable = &vsc85xx_set_tunable,
1877 .read_page = &vsc85xx_phy_read_page,
1878 .write_page = &vsc85xx_phy_write_page,
1879 .get_sset_count = &vsc85xx_get_sset_count,
1880 .get_strings = &vsc85xx_get_strings,
1881 .get_stats = &vsc85xx_get_stats,
1882 },
1883 {
1884 .phy_id = PHY_ID_VSC8540,
1885 .name = "Microsemi FE VSC8540 SyncE",
1886 .phy_id_mask = 0xfffffff0,
1887 .features = PHY_BASIC_FEATURES,
1888 .flags = PHY_HAS_INTERRUPT,
1889 .soft_reset = &genphy_soft_reset,
1890 .config_init = &vsc85xx_config_init,
1891 .config_aneg = &vsc85xx_config_aneg,
1892 .aneg_done = &genphy_aneg_done,
1893 .read_status = &vsc85xx_read_status,
1894 .ack_interrupt = &vsc85xx_ack_interrupt,
1895 .config_intr = &vsc85xx_config_intr,
1896 .suspend = &genphy_suspend,
1897 .resume = &genphy_resume,
1898 .probe = &vsc85xx_probe,
1899 .set_wol = &vsc85xx_wol_set,
1900 .get_wol = &vsc85xx_wol_get,
1901 .get_tunable = &vsc85xx_get_tunable,
1902 .set_tunable = &vsc85xx_set_tunable,
1903 .read_page = &vsc85xx_phy_read_page,
1904 .write_page = &vsc85xx_phy_write_page,
1905 .get_sset_count = &vsc85xx_get_sset_count,
1906 .get_strings = &vsc85xx_get_strings,
1907 .get_stats = &vsc85xx_get_stats,
1908 },
1909 {
1910 .phy_id = PHY_ID_VSC8541,
1911 .name = "Microsemi VSC8541 SyncE",
1912 .phy_id_mask = 0xfffffff0,
1913 .features = PHY_GBIT_FEATURES,
1914 .flags = PHY_HAS_INTERRUPT,
1915 .soft_reset = &genphy_soft_reset,
1916 .config_init = &vsc85xx_config_init,
1917 .config_aneg = &vsc85xx_config_aneg,
1918 .aneg_done = &genphy_aneg_done,
1919 .read_status = &vsc85xx_read_status,
1920 .ack_interrupt = &vsc85xx_ack_interrupt,
1921 .config_intr = &vsc85xx_config_intr,
1922 .suspend = &genphy_suspend,
1923 .resume = &genphy_resume,
1924 .probe = &vsc85xx_probe,
1925 .set_wol = &vsc85xx_wol_set,
1926 .get_wol = &vsc85xx_wol_get,
1927 .get_tunable = &vsc85xx_get_tunable,
1928 .set_tunable = &vsc85xx_set_tunable,
1929 .read_page = &vsc85xx_phy_read_page,
1930 .write_page = &vsc85xx_phy_write_page,
1931 .get_sset_count = &vsc85xx_get_sset_count,
1932 .get_strings = &vsc85xx_get_strings,
1933 .get_stats = &vsc85xx_get_stats,
1934 },
1935 {
1936 .phy_id = PHY_ID_VSC8574,
1937 .name = "Microsemi GE VSC8574 SyncE",
1938 .phy_id_mask = 0xfffffff0,
1939 .features = PHY_GBIT_FEATURES,
1940 .flags = PHY_HAS_INTERRUPT,
1941 .soft_reset = &genphy_soft_reset,
1942 .config_init = &vsc8584_config_init,
1943 .config_aneg = &vsc85xx_config_aneg,
1944 .aneg_done = &genphy_aneg_done,
1945 .read_status = &vsc85xx_read_status,
1946 .ack_interrupt = &vsc85xx_ack_interrupt,
1947 .config_intr = &vsc85xx_config_intr,
1948 .did_interrupt = &vsc8584_did_interrupt,
1949 .suspend = &genphy_suspend,
1950 .resume = &genphy_resume,
1951 .probe = &vsc8574_probe,
1952 .set_wol = &vsc85xx_wol_set,
1953 .get_wol = &vsc85xx_wol_get,
1954 .get_tunable = &vsc85xx_get_tunable,
1955 .set_tunable = &vsc85xx_set_tunable,
1956 .read_page = &vsc85xx_phy_read_page,
1957 .write_page = &vsc85xx_phy_write_page,
1958 .get_sset_count = &vsc85xx_get_sset_count,
1959 .get_strings = &vsc85xx_get_strings,
1960 .get_stats = &vsc85xx_get_stats,
1961 },
1962 {
1963 .phy_id = PHY_ID_VSC8584,
1964 .name = "Microsemi GE VSC8584 SyncE",
1965 .phy_id_mask = 0xfffffff0,
1966 .features = PHY_GBIT_FEATURES,
1967 .flags = PHY_HAS_INTERRUPT,
1968 .soft_reset = &genphy_soft_reset,
1969 .config_init = &vsc8584_config_init,
1970 .config_aneg = &vsc85xx_config_aneg,
1971 .aneg_done = &genphy_aneg_done,
1972 .read_status = &vsc85xx_read_status,
1973 .ack_interrupt = &vsc85xx_ack_interrupt,
1974 .config_intr = &vsc85xx_config_intr,
1975 .did_interrupt = &vsc8584_did_interrupt,
1976 .suspend = &genphy_suspend,
1977 .resume = &genphy_resume,
1978 .probe = &vsc8584_probe,
1979 .get_tunable = &vsc85xx_get_tunable,
1980 .set_tunable = &vsc85xx_set_tunable,
1981 .read_page = &vsc85xx_phy_read_page,
1982 .write_page = &vsc85xx_phy_write_page,
1983 .get_sset_count = &vsc85xx_get_sset_count,
1984 .get_strings = &vsc85xx_get_strings,
1985 .get_stats = &vsc85xx_get_stats,
1986 }
1987
1988 };
1989
1990 module_phy_driver(vsc85xx_driver);
1991
1992 static struct mdio_device_id __maybe_unused vsc85xx_tbl[] = {
1993 { PHY_ID_VSC8530, 0xfffffff0, },
1994 { PHY_ID_VSC8531, 0xfffffff0, },
1995 { PHY_ID_VSC8540, 0xfffffff0, },
1996 { PHY_ID_VSC8541, 0xfffffff0, },
1997 { PHY_ID_VSC8574, 0xfffffff0, },
1998 { PHY_ID_VSC8584, 0xfffffff0, },
1999 { }
2000 };
2001
2002 MODULE_DEVICE_TABLE(mdio, vsc85xx_tbl);
2003
2004 MODULE_DESCRIPTION("Microsemi VSC85xx PHY driver");
2005 MODULE_AUTHOR("Nagaraju Lakkaraju");
2006 MODULE_LICENSE("Dual MIT/GPL");
Linux with added FPC-III support