1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2005,2010-2011 Freescale Semiconductor, Inc.
4 *
5 * Author: Shlomi Gridish
6 *
7 * Description: UCC GETH Driver -- PHY handling
8 * Driver for UEC on QE
9 * Based on 8260_io/fcc_enet.c
10 */
11
12 #include <common.h>
13 #include <net.h>
14 #include <malloc.h>
15 #include <linux/delay.h>
16 #include <linux/errno.h>
17 #include <linux/immap_qe.h>
18 #include <asm/io.h>
19 #include "uccf.h"
20 #include "uec.h"
21 #include "uec_phy.h"
22 #include "miiphy.h"
23 #include <fsl_qe.h>
24 #include <phy.h>
25
26 #define ugphy_printk(format, arg...) \
27 printf(format "\n", ## arg)
28
29 #define ugphy_dbg(format, arg...) \
30 ugphy_printk(format , ## arg)
31 #define ugphy_err(format, arg...) \
32 ugphy_printk(format , ## arg)
33 #define ugphy_info(format, arg...) \
34 ugphy_printk(format , ## arg)
35 #define ugphy_warn(format, arg...) \
36 ugphy_printk(format , ## arg)
37
38 #ifdef UEC_VERBOSE_DEBUG
39 #define ugphy_vdbg ugphy_dbg
40 #else
41 #define ugphy_vdbg(ugeth, fmt, args...) do { } while (0)
42 #endif /* UEC_VERBOSE_DEBUG */
43
44 /*--------------------------------------------------------------------+
45 * Fixed PHY (PHY-less) support for Ethernet Ports.
46 *
47 * Copied from arch/powerpc/cpu/ppc4xx/4xx_enet.c
48 *--------------------------------------------------------------------*/
49
50 /*
51 * Some boards do not have a PHY for each ethernet port. These ports are known
52 * as Fixed PHY (or PHY-less) ports. For such ports, set the appropriate
53 * CONFIG_SYS_UECx_PHY_ADDR equal to CONFIG_FIXED_PHY_ADDR (an unused address)
54 * When the drver tries to identify the PHYs, CONFIG_FIXED_PHY will be returned
55 * and the driver will search CONFIG_SYS_FIXED_PHY_PORTS to find what network
56 * speed and duplex should be for the port.
57 *
58 * Example board header configuration file:
59 * #define CONFIG_FIXED_PHY 0xFFFFFFFF
60 * #define CONFIG_SYS_FIXED_PHY_ADDR 0x1E (pick an unused phy address)
61 *
62 * #define CONFIG_SYS_UEC1_PHY_ADDR CONFIG_SYS_FIXED_PHY_ADDR
63 * #define CONFIG_SYS_UEC2_PHY_ADDR 0x02
64 * #define CONFIG_SYS_UEC3_PHY_ADDR CONFIG_SYS_FIXED_PHY_ADDR
65 * #define CONFIG_SYS_UEC4_PHY_ADDR 0x04
66 *
67 * #define CONFIG_SYS_FIXED_PHY_PORT(name,speed,duplex) \
68 * {name, speed, duplex},
69 *
70 * #define CONFIG_SYS_FIXED_PHY_PORTS \
71 * CONFIG_SYS_FIXED_PHY_PORT("UEC0",SPEED_100,DUPLEX_FULL) \
72 * CONFIG_SYS_FIXED_PHY_PORT("UEC2",SPEED_100,DUPLEX_HALF)
73 */
74
75 #ifndef CONFIG_FIXED_PHY
76 #define CONFIG_FIXED_PHY 0xFFFFFFFF /* Fixed PHY (PHY-less) */
77 #endif
78
79 #ifndef CONFIG_SYS_FIXED_PHY_PORTS
80 #define CONFIG_SYS_FIXED_PHY_PORTS /* default is an empty array */
81 #endif
82
83 struct fixed_phy_port {
84 char name[16]; /* ethernet port name */
85 unsigned int speed; /* specified speed 10,100 or 1000 */
86 unsigned int duplex; /* specified duplex FULL or HALF */
87 };
88
89 static const struct fixed_phy_port fixed_phy_port[] = {
90 CONFIG_SYS_FIXED_PHY_PORTS /* defined in board configuration file */
91 };
92
93 /*--------------------------------------------------------------------+
94 * BitBang MII support for ethernet ports
95 *
96 * Based from MPC8560ADS implementation
97 *--------------------------------------------------------------------*/
98 /*
99 * Example board header file to define bitbang ethernet ports:
100 *
101 * #define CONFIG_SYS_BITBANG_PHY_PORT(name) name,
102 * #define CONFIG_SYS_BITBANG_PHY_PORTS CONFIG_SYS_BITBANG_PHY_PORT("UEC0")
103 */
104 #ifndef CONFIG_SYS_BITBANG_PHY_PORTS
105 #define CONFIG_SYS_BITBANG_PHY_PORTS /* default is an empty array */
106 #endif
107
108 #if defined(CONFIG_BITBANGMII)
109 static const char *bitbang_phy_port[] = {
110 CONFIG_SYS_BITBANG_PHY_PORTS /* defined in board configuration file */
111 };
112 #endif /* CONFIG_BITBANGMII */
113
114 static void config_genmii_advert (struct uec_mii_info *mii_info);
115 static void genmii_setup_forced (struct uec_mii_info *mii_info);
116 static void genmii_restart_aneg (struct uec_mii_info *mii_info);
117 static int gbit_config_aneg (struct uec_mii_info *mii_info);
118 static int genmii_config_aneg (struct uec_mii_info *mii_info);
119 static int genmii_update_link (struct uec_mii_info *mii_info);
120 static int genmii_read_status (struct uec_mii_info *mii_info);
121 u16 uec_phy_read(struct uec_mii_info *mii_info, u16 regnum);
122 void uec_phy_write(struct uec_mii_info *mii_info, u16 regnum, u16 val);
123
124 /* Write value to the PHY for this device to the register at regnum, */
125 /* waiting until the write is done before it returns. All PHY */
126 /* configuration has to be done through the TSEC1 MIIM regs */
uec_write_phy_reg(struct eth_device * dev,int mii_id,int regnum,int value)127 void uec_write_phy_reg (struct eth_device *dev, int mii_id, int regnum, int value)
128 {
129 uec_private_t *ugeth = (uec_private_t *) dev->priv;
130 uec_mii_t *ug_regs;
131 enet_tbi_mii_reg_e mii_reg = (enet_tbi_mii_reg_e) regnum;
132 u32 tmp_reg;
133
134
135 #if defined(CONFIG_BITBANGMII)
136 u32 i = 0;
137
138 for (i = 0; i < ARRAY_SIZE(bitbang_phy_port); i++) {
139 if (strncmp(dev->name, bitbang_phy_port[i],
140 sizeof(dev->name)) == 0) {
141 (void)bb_miiphy_write(NULL, mii_id, regnum, value);
142 return;
143 }
144 }
145 #endif /* CONFIG_BITBANGMII */
146
147 ug_regs = ugeth->uec_mii_regs;
148
149 /* Stop the MII management read cycle */
150 out_be32 (&ug_regs->miimcom, 0);
151 /* Setting up the MII Mangement Address Register */
152 tmp_reg = ((u32) mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | mii_reg;
153 out_be32 (&ug_regs->miimadd, tmp_reg);
154
155 /* Setting up the MII Mangement Control Register with the value */
156 out_be32 (&ug_regs->miimcon, (u32) value);
157 sync();
158
159 /* Wait till MII management write is complete */
160 while ((in_be32 (&ug_regs->miimind)) & MIIMIND_BUSY);
161 }
162
163 /* Reads from register regnum in the PHY for device dev, */
164 /* returning the value. Clears miimcom first. All PHY */
165 /* configuration has to be done through the TSEC1 MIIM regs */
uec_read_phy_reg(struct eth_device * dev,int mii_id,int regnum)166 int uec_read_phy_reg (struct eth_device *dev, int mii_id, int regnum)
167 {
168 uec_private_t *ugeth = (uec_private_t *) dev->priv;
169 uec_mii_t *ug_regs;
170 enet_tbi_mii_reg_e mii_reg = (enet_tbi_mii_reg_e) regnum;
171 u32 tmp_reg;
172 u16 value;
173
174
175 #if defined(CONFIG_BITBANGMII)
176 u32 i = 0;
177
178 for (i = 0; i < ARRAY_SIZE(bitbang_phy_port); i++) {
179 if (strncmp(dev->name, bitbang_phy_port[i],
180 sizeof(dev->name)) == 0) {
181 (void)bb_miiphy_read(NULL, mii_id, regnum, &value);
182 return (value);
183 }
184 }
185 #endif /* CONFIG_BITBANGMII */
186
187 ug_regs = ugeth->uec_mii_regs;
188
189 /* Setting up the MII Mangement Address Register */
190 tmp_reg = ((u32) mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | mii_reg;
191 out_be32 (&ug_regs->miimadd, tmp_reg);
192
193 /* clear MII management command cycle */
194 out_be32 (&ug_regs->miimcom, 0);
195 sync();
196
197 /* Perform an MII management read cycle */
198 out_be32 (&ug_regs->miimcom, MIIMCOM_READ_CYCLE);
199
200 /* Wait till MII management write is complete */
201 while ((in_be32 (&ug_regs->miimind)) &
202 (MIIMIND_NOT_VALID | MIIMIND_BUSY));
203
204 /* Read MII management status */
205 value = (u16) in_be32 (&ug_regs->miimstat);
206 if (value == 0xffff)
207 ugphy_vdbg
208 ("read wrong value : mii_id %d,mii_reg %d, base %08x",
209 mii_id, mii_reg, (u32) & (ug_regs->miimcfg));
210
211 return (value);
212 }
213
mii_clear_phy_interrupt(struct uec_mii_info * mii_info)214 void mii_clear_phy_interrupt (struct uec_mii_info *mii_info)
215 {
216 if (mii_info->phyinfo->ack_interrupt)
217 mii_info->phyinfo->ack_interrupt (mii_info);
218 }
219
mii_configure_phy_interrupt(struct uec_mii_info * mii_info,u32 interrupts)220 void mii_configure_phy_interrupt (struct uec_mii_info *mii_info,
221 u32 interrupts)
222 {
223 mii_info->interrupts = interrupts;
224 if (mii_info->phyinfo->config_intr)
225 mii_info->phyinfo->config_intr (mii_info);
226 }
227
228 /* Writes MII_ADVERTISE with the appropriate values, after
229 * sanitizing advertise to make sure only supported features
230 * are advertised
231 */
config_genmii_advert(struct uec_mii_info * mii_info)232 static void config_genmii_advert (struct uec_mii_info *mii_info)
233 {
234 u32 advertise;
235 u16 adv;
236
237 /* Only allow advertising what this PHY supports */
238 mii_info->advertising &= mii_info->phyinfo->features;
239 advertise = mii_info->advertising;
240
241 /* Setup standard advertisement */
242 adv = uec_phy_read(mii_info, MII_ADVERTISE);
243 adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
244 if (advertise & ADVERTISED_10baseT_Half)
245 adv |= ADVERTISE_10HALF;
246 if (advertise & ADVERTISED_10baseT_Full)
247 adv |= ADVERTISE_10FULL;
248 if (advertise & ADVERTISED_100baseT_Half)
249 adv |= ADVERTISE_100HALF;
250 if (advertise & ADVERTISED_100baseT_Full)
251 adv |= ADVERTISE_100FULL;
252 uec_phy_write(mii_info, MII_ADVERTISE, adv);
253 }
254
genmii_setup_forced(struct uec_mii_info * mii_info)255 static void genmii_setup_forced (struct uec_mii_info *mii_info)
256 {
257 u16 ctrl;
258 u32 features = mii_info->phyinfo->features;
259
260 ctrl = uec_phy_read(mii_info, MII_BMCR);
261
262 ctrl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 |
263 BMCR_SPEED1000 | BMCR_ANENABLE);
264 ctrl |= BMCR_RESET;
265
266 switch (mii_info->speed) {
267 case SPEED_1000:
268 if (features & (SUPPORTED_1000baseT_Half
269 | SUPPORTED_1000baseT_Full)) {
270 ctrl |= BMCR_SPEED1000;
271 break;
272 }
273 mii_info->speed = SPEED_100;
274 case SPEED_100:
275 if (features & (SUPPORTED_100baseT_Half
276 | SUPPORTED_100baseT_Full)) {
277 ctrl |= BMCR_SPEED100;
278 break;
279 }
280 mii_info->speed = SPEED_10;
281 case SPEED_10:
282 if (features & (SUPPORTED_10baseT_Half
283 | SUPPORTED_10baseT_Full))
284 break;
285 default: /* Unsupported speed! */
286 ugphy_err ("%s: Bad speed!", mii_info->dev->name);
287 break;
288 }
289
290 uec_phy_write(mii_info, MII_BMCR, ctrl);
291 }
292
293 /* Enable and Restart Autonegotiation */
genmii_restart_aneg(struct uec_mii_info * mii_info)294 static void genmii_restart_aneg (struct uec_mii_info *mii_info)
295 {
296 u16 ctl;
297
298 ctl = uec_phy_read(mii_info, MII_BMCR);
299 ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
300 uec_phy_write(mii_info, MII_BMCR, ctl);
301 }
302
gbit_config_aneg(struct uec_mii_info * mii_info)303 static int gbit_config_aneg (struct uec_mii_info *mii_info)
304 {
305 u16 adv;
306 u32 advertise;
307
308 if (mii_info->autoneg) {
309 /* Configure the ADVERTISE register */
310 config_genmii_advert (mii_info);
311 advertise = mii_info->advertising;
312
313 adv = uec_phy_read(mii_info, MII_CTRL1000);
314 adv &= ~(ADVERTISE_1000FULL |
315 ADVERTISE_1000HALF);
316 if (advertise & SUPPORTED_1000baseT_Half)
317 adv |= ADVERTISE_1000HALF;
318 if (advertise & SUPPORTED_1000baseT_Full)
319 adv |= ADVERTISE_1000FULL;
320 uec_phy_write(mii_info, MII_CTRL1000, adv);
321
322 /* Start/Restart aneg */
323 genmii_restart_aneg (mii_info);
324 } else
325 genmii_setup_forced (mii_info);
326
327 return 0;
328 }
329
marvell_config_aneg(struct uec_mii_info * mii_info)330 static int marvell_config_aneg (struct uec_mii_info *mii_info)
331 {
332 /* The Marvell PHY has an errata which requires
333 * that certain registers get written in order
334 * to restart autonegotiation */
335 uec_phy_write(mii_info, MII_BMCR, BMCR_RESET);
336
337 uec_phy_write(mii_info, 0x1d, 0x1f);
338 uec_phy_write(mii_info, 0x1e, 0x200c);
339 uec_phy_write(mii_info, 0x1d, 0x5);
340 uec_phy_write(mii_info, 0x1e, 0);
341 uec_phy_write(mii_info, 0x1e, 0x100);
342
343 gbit_config_aneg (mii_info);
344
345 return 0;
346 }
347
genmii_config_aneg(struct uec_mii_info * mii_info)348 static int genmii_config_aneg (struct uec_mii_info *mii_info)
349 {
350 if (mii_info->autoneg) {
351 /* Speed up the common case, if link is already up, speed and
352 duplex match, skip auto neg as it already matches */
353 if (!genmii_read_status(mii_info) && mii_info->link)
354 if (mii_info->duplex == DUPLEX_FULL &&
355 mii_info->speed == SPEED_100)
356 if (mii_info->advertising &
357 ADVERTISED_100baseT_Full)
358 return 0;
359
360 config_genmii_advert (mii_info);
361 genmii_restart_aneg (mii_info);
362 } else
363 genmii_setup_forced (mii_info);
364
365 return 0;
366 }
367
genmii_update_link(struct uec_mii_info * mii_info)368 static int genmii_update_link (struct uec_mii_info *mii_info)
369 {
370 u16 status;
371
372 /* Status is read once to clear old link state */
373 uec_phy_read(mii_info, MII_BMSR);
374
375 /*
376 * Wait if the link is up, and autonegotiation is in progress
377 * (ie - we're capable and it's not done)
378 */
379 status = uec_phy_read(mii_info, MII_BMSR);
380 if ((status & BMSR_LSTATUS) && (status & BMSR_ANEGCAPABLE)
381 && !(status & BMSR_ANEGCOMPLETE)) {
382 int i = 0;
383
384 while (!(status & BMSR_ANEGCOMPLETE)) {
385 /*
386 * Timeout reached ?
387 */
388 if (i > UGETH_AN_TIMEOUT) {
389 mii_info->link = 0;
390 return 0;
391 }
392
393 i++;
394 udelay(1000); /* 1 ms */
395 status = uec_phy_read(mii_info, MII_BMSR);
396 }
397 mii_info->link = 1;
398 } else {
399 if (status & BMSR_LSTATUS)
400 mii_info->link = 1;
401 else
402 mii_info->link = 0;
403 }
404
405 return 0;
406 }
407
genmii_read_status(struct uec_mii_info * mii_info)408 static int genmii_read_status (struct uec_mii_info *mii_info)
409 {
410 u16 status;
411 int err;
412
413 /* Update the link, but return if there
414 * was an error */
415 err = genmii_update_link (mii_info);
416 if (err)
417 return err;
418
419 if (mii_info->autoneg) {
420 status = uec_phy_read(mii_info, MII_STAT1000);
421
422 if (status & (LPA_1000FULL | LPA_1000HALF)) {
423 mii_info->speed = SPEED_1000;
424 if (status & LPA_1000FULL)
425 mii_info->duplex = DUPLEX_FULL;
426 else
427 mii_info->duplex = DUPLEX_HALF;
428 } else {
429 status = uec_phy_read(mii_info, MII_LPA);
430
431 if (status & (LPA_10FULL | LPA_100FULL))
432 mii_info->duplex = DUPLEX_FULL;
433 else
434 mii_info->duplex = DUPLEX_HALF;
435 if (status & (LPA_100FULL | LPA_100HALF))
436 mii_info->speed = SPEED_100;
437 else
438 mii_info->speed = SPEED_10;
439 }
440 mii_info->pause = 0;
441 }
442 /* On non-aneg, we assume what we put in BMCR is the speed,
443 * though magic-aneg shouldn't prevent this case from occurring
444 */
445
446 return 0;
447 }
448
bcm_init(struct uec_mii_info * mii_info)449 static int bcm_init(struct uec_mii_info *mii_info)
450 {
451 struct eth_device *edev = mii_info->dev;
452 uec_private_t *uec = edev->priv;
453
454 gbit_config_aneg(mii_info);
455
456 if ((uec->uec_info->enet_interface_type ==
457 PHY_INTERFACE_MODE_RGMII_RXID) &&
458 (uec->uec_info->speed == SPEED_1000)) {
459 u16 val;
460 int cnt = 50;
461
462 /* Wait for aneg to complete. */
463 do
464 val = uec_phy_read(mii_info, MII_BMSR);
465 while (--cnt && !(val & BMSR_ANEGCOMPLETE));
466
467 /* Set RDX clk delay. */
468 uec_phy_write(mii_info, 0x18, 0x7 | (7 << 12));
469
470 val = uec_phy_read(mii_info, 0x18);
471 /* Set RDX-RXC skew. */
472 val |= (1 << 8);
473 val |= (7 | (7 << 12));
474 /* Write bits 14:0. */
475 val |= (1 << 15);
476 uec_phy_write(mii_info, 0x18, val);
477 }
478
479 return 0;
480 }
481
uec_marvell_init(struct uec_mii_info * mii_info)482 static int uec_marvell_init(struct uec_mii_info *mii_info)
483 {
484 struct eth_device *edev = mii_info->dev;
485 uec_private_t *uec = edev->priv;
486 phy_interface_t iface = uec->uec_info->enet_interface_type;
487 int speed = uec->uec_info->speed;
488
489 if ((speed == SPEED_1000) &&
490 (iface == PHY_INTERFACE_MODE_RGMII_ID ||
491 iface == PHY_INTERFACE_MODE_RGMII_RXID ||
492 iface == PHY_INTERFACE_MODE_RGMII_TXID)) {
493 int temp;
494
495 temp = uec_phy_read(mii_info, MII_M1111_PHY_EXT_CR);
496 if (iface == PHY_INTERFACE_MODE_RGMII_ID) {
497 temp |= MII_M1111_RX_DELAY | MII_M1111_TX_DELAY;
498 } else if (iface == PHY_INTERFACE_MODE_RGMII_RXID) {
499 temp &= ~MII_M1111_TX_DELAY;
500 temp |= MII_M1111_RX_DELAY;
501 } else if (iface == PHY_INTERFACE_MODE_RGMII_TXID) {
502 temp &= ~MII_M1111_RX_DELAY;
503 temp |= MII_M1111_TX_DELAY;
504 }
505 uec_phy_write(mii_info, MII_M1111_PHY_EXT_CR, temp);
506
507 temp = uec_phy_read(mii_info, MII_M1111_PHY_EXT_SR);
508 temp &= ~MII_M1111_HWCFG_MODE_MASK;
509 temp |= MII_M1111_HWCFG_MODE_RGMII;
510 uec_phy_write(mii_info, MII_M1111_PHY_EXT_SR, temp);
511
512 uec_phy_write(mii_info, MII_BMCR, BMCR_RESET);
513 }
514
515 return 0;
516 }
517
marvell_read_status(struct uec_mii_info * mii_info)518 static int marvell_read_status (struct uec_mii_info *mii_info)
519 {
520 u16 status;
521 int err;
522
523 /* Update the link, but return if there
524 * was an error */
525 err = genmii_update_link (mii_info);
526 if (err)
527 return err;
528
529 /* If the link is up, read the speed and duplex */
530 /* If we aren't autonegotiating, assume speeds
531 * are as set */
532 if (mii_info->autoneg && mii_info->link) {
533 int speed;
534
535 status = uec_phy_read(mii_info, MII_M1011_PHY_SPEC_STATUS);
536
537 /* Get the duplexity */
538 if (status & MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX)
539 mii_info->duplex = DUPLEX_FULL;
540 else
541 mii_info->duplex = DUPLEX_HALF;
542
543 /* Get the speed */
544 speed = status & MII_M1011_PHY_SPEC_STATUS_SPD_MASK;
545 switch (speed) {
546 case MII_M1011_PHY_SPEC_STATUS_1000:
547 mii_info->speed = SPEED_1000;
548 break;
549 case MII_M1011_PHY_SPEC_STATUS_100:
550 mii_info->speed = SPEED_100;
551 break;
552 default:
553 mii_info->speed = SPEED_10;
554 break;
555 }
556 mii_info->pause = 0;
557 }
558
559 return 0;
560 }
561
marvell_ack_interrupt(struct uec_mii_info * mii_info)562 static int marvell_ack_interrupt (struct uec_mii_info *mii_info)
563 {
564 /* Clear the interrupts by reading the reg */
565 uec_phy_read(mii_info, MII_M1011_IEVENT);
566
567 return 0;
568 }
569
marvell_config_intr(struct uec_mii_info * mii_info)570 static int marvell_config_intr (struct uec_mii_info *mii_info)
571 {
572 if (mii_info->interrupts == MII_INTERRUPT_ENABLED)
573 uec_phy_write(mii_info, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
574 else
575 uec_phy_write(mii_info, MII_M1011_IMASK,
576 MII_M1011_IMASK_CLEAR);
577
578 return 0;
579 }
580
dm9161_init(struct uec_mii_info * mii_info)581 static int dm9161_init (struct uec_mii_info *mii_info)
582 {
583 /* Reset the PHY */
584 uec_phy_write(mii_info, MII_BMCR, uec_phy_read(mii_info, MII_BMCR) |
585 BMCR_RESET);
586 /* PHY and MAC connect */
587 uec_phy_write(mii_info, MII_BMCR, uec_phy_read(mii_info, MII_BMCR) &
588 ~BMCR_ISOLATE);
589
590 uec_phy_write(mii_info, MII_DM9161_SCR, MII_DM9161_SCR_INIT);
591
592 config_genmii_advert (mii_info);
593 /* Start/restart aneg */
594 genmii_config_aneg (mii_info);
595
596 return 0;
597 }
598
dm9161_config_aneg(struct uec_mii_info * mii_info)599 static int dm9161_config_aneg (struct uec_mii_info *mii_info)
600 {
601 return 0;
602 }
603
dm9161_read_status(struct uec_mii_info * mii_info)604 static int dm9161_read_status (struct uec_mii_info *mii_info)
605 {
606 u16 status;
607 int err;
608
609 /* Update the link, but return if there was an error */
610 err = genmii_update_link (mii_info);
611 if (err)
612 return err;
613 /* If the link is up, read the speed and duplex
614 If we aren't autonegotiating assume speeds are as set */
615 if (mii_info->autoneg && mii_info->link) {
616 status = uec_phy_read(mii_info, MII_DM9161_SCSR);
617 if (status & (MII_DM9161_SCSR_100F | MII_DM9161_SCSR_100H))
618 mii_info->speed = SPEED_100;
619 else
620 mii_info->speed = SPEED_10;
621
622 if (status & (MII_DM9161_SCSR_100F | MII_DM9161_SCSR_10F))
623 mii_info->duplex = DUPLEX_FULL;
624 else
625 mii_info->duplex = DUPLEX_HALF;
626 }
627
628 return 0;
629 }
630
dm9161_ack_interrupt(struct uec_mii_info * mii_info)631 static int dm9161_ack_interrupt (struct uec_mii_info *mii_info)
632 {
633 /* Clear the interrupt by reading the reg */
634 uec_phy_read(mii_info, MII_DM9161_INTR);
635
636 return 0;
637 }
638
dm9161_config_intr(struct uec_mii_info * mii_info)639 static int dm9161_config_intr (struct uec_mii_info *mii_info)
640 {
641 if (mii_info->interrupts == MII_INTERRUPT_ENABLED)
642 uec_phy_write(mii_info, MII_DM9161_INTR, MII_DM9161_INTR_INIT);
643 else
644 uec_phy_write(mii_info, MII_DM9161_INTR, MII_DM9161_INTR_STOP);
645
646 return 0;
647 }
648
dm9161_close(struct uec_mii_info * mii_info)649 static void dm9161_close (struct uec_mii_info *mii_info)
650 {
651 }
652
fixed_phy_aneg(struct uec_mii_info * mii_info)653 static int fixed_phy_aneg (struct uec_mii_info *mii_info)
654 {
655 mii_info->autoneg = 0; /* Turn off auto negotiation for fixed phy */
656 return 0;
657 }
658
fixed_phy_read_status(struct uec_mii_info * mii_info)659 static int fixed_phy_read_status (struct uec_mii_info *mii_info)
660 {
661 int i = 0;
662
663 for (i = 0; i < ARRAY_SIZE(fixed_phy_port); i++) {
664 if (strncmp(mii_info->dev->name, fixed_phy_port[i].name,
665 strlen(mii_info->dev->name)) == 0) {
666 mii_info->speed = fixed_phy_port[i].speed;
667 mii_info->duplex = fixed_phy_port[i].duplex;
668 mii_info->link = 1; /* Link is always UP */
669 mii_info->pause = 0;
670 break;
671 }
672 }
673 return 0;
674 }
675
smsc_config_aneg(struct uec_mii_info * mii_info)676 static int smsc_config_aneg (struct uec_mii_info *mii_info)
677 {
678 return 0;
679 }
680
smsc_read_status(struct uec_mii_info * mii_info)681 static int smsc_read_status (struct uec_mii_info *mii_info)
682 {
683 u16 status;
684 int err;
685
686 /* Update the link, but return if there
687 * was an error */
688 err = genmii_update_link (mii_info);
689 if (err)
690 return err;
691
692 /* If the link is up, read the speed and duplex */
693 /* If we aren't autonegotiating, assume speeds
694 * are as set */
695 if (mii_info->autoneg && mii_info->link) {
696 int val;
697
698 status = uec_phy_read(mii_info, 0x1f);
699 val = (status & 0x1c) >> 2;
700
701 switch (val) {
702 case 1:
703 mii_info->duplex = DUPLEX_HALF;
704 mii_info->speed = SPEED_10;
705 break;
706 case 5:
707 mii_info->duplex = DUPLEX_FULL;
708 mii_info->speed = SPEED_10;
709 break;
710 case 2:
711 mii_info->duplex = DUPLEX_HALF;
712 mii_info->speed = SPEED_100;
713 break;
714 case 6:
715 mii_info->duplex = DUPLEX_FULL;
716 mii_info->speed = SPEED_100;
717 break;
718 }
719 mii_info->pause = 0;
720 }
721
722 return 0;
723 }
724
725 static struct phy_info phy_info_dm9161 = {
726 .phy_id = 0x0181b880,
727 .phy_id_mask = 0x0ffffff0,
728 .name = "Davicom DM9161E",
729 .init = dm9161_init,
730 .config_aneg = dm9161_config_aneg,
731 .read_status = dm9161_read_status,
732 .close = dm9161_close,
733 };
734
735 static struct phy_info phy_info_dm9161a = {
736 .phy_id = 0x0181b8a0,
737 .phy_id_mask = 0x0ffffff0,
738 .name = "Davicom DM9161A",
739 .features = MII_BASIC_FEATURES,
740 .init = dm9161_init,
741 .config_aneg = dm9161_config_aneg,
742 .read_status = dm9161_read_status,
743 .ack_interrupt = dm9161_ack_interrupt,
744 .config_intr = dm9161_config_intr,
745 .close = dm9161_close,
746 };
747
748 static struct phy_info phy_info_marvell = {
749 .phy_id = 0x01410c00,
750 .phy_id_mask = 0xffffff00,
751 .name = "Marvell 88E11x1",
752 .features = MII_GBIT_FEATURES,
753 .init = &uec_marvell_init,
754 .config_aneg = &marvell_config_aneg,
755 .read_status = &marvell_read_status,
756 .ack_interrupt = &marvell_ack_interrupt,
757 .config_intr = &marvell_config_intr,
758 };
759
760 static struct phy_info phy_info_bcm5481 = {
761 .phy_id = 0x0143bca0,
762 .phy_id_mask = 0xffffff0,
763 .name = "Broadcom 5481",
764 .features = MII_GBIT_FEATURES,
765 .read_status = genmii_read_status,
766 .init = bcm_init,
767 };
768
769 static struct phy_info phy_info_fixedphy = {
770 .phy_id = CONFIG_FIXED_PHY,
771 .phy_id_mask = CONFIG_FIXED_PHY,
772 .name = "Fixed PHY",
773 .config_aneg = fixed_phy_aneg,
774 .read_status = fixed_phy_read_status,
775 };
776
777 static struct phy_info phy_info_smsclan8700 = {
778 .phy_id = 0x0007c0c0,
779 .phy_id_mask = 0xfffffff0,
780 .name = "SMSC LAN8700",
781 .features = MII_BASIC_FEATURES,
782 .config_aneg = smsc_config_aneg,
783 .read_status = smsc_read_status,
784 };
785
786 static struct phy_info phy_info_genmii = {
787 .phy_id = 0x00000000,
788 .phy_id_mask = 0x00000000,
789 .name = "Generic MII",
790 .features = MII_BASIC_FEATURES,
791 .config_aneg = genmii_config_aneg,
792 .read_status = genmii_read_status,
793 };
794
795 static struct phy_info *phy_info[] = {
796 &phy_info_dm9161,
797 &phy_info_dm9161a,
798 &phy_info_marvell,
799 &phy_info_bcm5481,
800 &phy_info_smsclan8700,
801 &phy_info_fixedphy,
802 &phy_info_genmii,
803 NULL
804 };
805
uec_phy_read(struct uec_mii_info * mii_info,u16 regnum)806 u16 uec_phy_read(struct uec_mii_info *mii_info, u16 regnum)
807 {
808 return mii_info->mdio_read (mii_info->dev, mii_info->mii_id, regnum);
809 }
810
uec_phy_write(struct uec_mii_info * mii_info,u16 regnum,u16 val)811 void uec_phy_write(struct uec_mii_info *mii_info, u16 regnum, u16 val)
812 {
813 mii_info->mdio_write (mii_info->dev, mii_info->mii_id, regnum, val);
814 }
815
816 /* Use the PHY ID registers to determine what type of PHY is attached
817 * to device dev. return a struct phy_info structure describing that PHY
818 */
uec_get_phy_info(struct uec_mii_info * mii_info)819 struct phy_info *uec_get_phy_info (struct uec_mii_info *mii_info)
820 {
821 u16 phy_reg;
822 u32 phy_ID;
823 int i;
824 struct phy_info *theInfo = NULL;
825
826 /* Grab the bits from PHYIR1, and put them in the upper half */
827 phy_reg = uec_phy_read(mii_info, MII_PHYSID1);
828 phy_ID = (phy_reg & 0xffff) << 16;
829
830 /* Grab the bits from PHYIR2, and put them in the lower half */
831 phy_reg = uec_phy_read(mii_info, MII_PHYSID2);
832 phy_ID |= (phy_reg & 0xffff);
833
834 /* loop through all the known PHY types, and find one that */
835 /* matches the ID we read from the PHY. */
836 for (i = 0; phy_info[i]; i++)
837 if (phy_info[i]->phy_id ==
838 (phy_ID & phy_info[i]->phy_id_mask)) {
839 theInfo = phy_info[i];
840 break;
841 }
842
843 /* This shouldn't happen, as we have generic PHY support */
844 if (theInfo == NULL) {
845 ugphy_info ("UEC: PHY id %x is not supported!", phy_ID);
846 return NULL;
847 } else {
848 ugphy_info ("UEC: PHY is %s (%x)", theInfo->name, phy_ID);
849 }
850
851 return theInfo;
852 }
853
marvell_phy_interface_mode(struct eth_device * dev,phy_interface_t type,int speed)854 void marvell_phy_interface_mode(struct eth_device *dev, phy_interface_t type,
855 int speed)
856 {
857 uec_private_t *uec = (uec_private_t *) dev->priv;
858 struct uec_mii_info *mii_info;
859 u16 status;
860
861 if (!uec->mii_info) {
862 printf ("%s: the PHY not initialized\n", __FUNCTION__);
863 return;
864 }
865 mii_info = uec->mii_info;
866
867 if (type == PHY_INTERFACE_MODE_RGMII) {
868 if (speed == SPEED_100) {
869 uec_phy_write(mii_info, 0x00, 0x9140);
870 uec_phy_write(mii_info, 0x1d, 0x001f);
871 uec_phy_write(mii_info, 0x1e, 0x200c);
872 uec_phy_write(mii_info, 0x1d, 0x0005);
873 uec_phy_write(mii_info, 0x1e, 0x0000);
874 uec_phy_write(mii_info, 0x1e, 0x0100);
875 uec_phy_write(mii_info, 0x09, 0x0e00);
876 uec_phy_write(mii_info, 0x04, 0x01e1);
877 uec_phy_write(mii_info, 0x00, 0x9140);
878 uec_phy_write(mii_info, 0x00, 0x1000);
879 mdelay(100);
880 uec_phy_write(mii_info, 0x00, 0x2900);
881 uec_phy_write(mii_info, 0x14, 0x0cd2);
882 uec_phy_write(mii_info, 0x00, 0xa100);
883 uec_phy_write(mii_info, 0x09, 0x0000);
884 uec_phy_write(mii_info, 0x1b, 0x800b);
885 uec_phy_write(mii_info, 0x04, 0x05e1);
886 uec_phy_write(mii_info, 0x00, 0xa100);
887 uec_phy_write(mii_info, 0x00, 0x2100);
888 mdelay(1000);
889 } else if (speed == SPEED_10) {
890 uec_phy_write(mii_info, 0x14, 0x8e40);
891 uec_phy_write(mii_info, 0x1b, 0x800b);
892 uec_phy_write(mii_info, 0x14, 0x0c82);
893 uec_phy_write(mii_info, 0x00, 0x8100);
894 mdelay(1000);
895 }
896 }
897
898 /* handle 88e1111 rev.B2 erratum 5.6 */
899 if (mii_info->autoneg) {
900 status = uec_phy_read(mii_info, MII_BMCR);
901 uec_phy_write(mii_info, MII_BMCR, status | BMCR_ANENABLE);
902 }
903 /* now the B2 will correctly report autoneg completion status */
904 }
905
change_phy_interface_mode(struct eth_device * dev,phy_interface_t type,int speed)906 void change_phy_interface_mode (struct eth_device *dev,
907 phy_interface_t type, int speed)
908 {
909 #ifdef CONFIG_PHY_MODE_NEED_CHANGE
910 marvell_phy_interface_mode (dev, type, speed);
911 #endif
912 }
913