xref: /openbmc/u-boot/drivers/net/tsec.c (revision 89b87081)
1 /*
2  * Freescale Three Speed Ethernet Controller driver
3  *
4  * This software may be used and distributed according to the
5  * terms of the GNU Public License, Version 2, incorporated
6  * herein by reference.
7  *
8  * Copyright 2004-2011, 2013 Freescale Semiconductor, Inc.
9  * (C) Copyright 2003, Motorola, Inc.
10  * author Andy Fleming
11  *
12  */
13 
14 #include <config.h>
15 #include <common.h>
16 #include <malloc.h>
17 #include <net.h>
18 #include <command.h>
19 #include <tsec.h>
20 #include <fsl_mdio.h>
21 #include <asm/errno.h>
22 #include <asm/processor.h>
23 #include <asm/io.h>
24 
25 DECLARE_GLOBAL_DATA_PTR;
26 
27 #define TX_BUF_CNT		2
28 
29 static uint rx_idx;		/* index of the current RX buffer */
30 static uint tx_idx;		/* index of the current TX buffer */
31 
32 #ifdef __GNUC__
33 static struct txbd8 __iomem txbd[TX_BUF_CNT] __aligned(8);
34 static struct rxbd8 __iomem rxbd[PKTBUFSRX] __aligned(8);
35 
36 #else
37 #error "rtx must be 64-bit aligned"
38 #endif
39 
40 static int tsec_send(struct eth_device *dev, void *packet, int length);
41 
42 /* Default initializations for TSEC controllers. */
43 
44 static struct tsec_info_struct tsec_info[] = {
45 #ifdef CONFIG_TSEC1
46 	STD_TSEC_INFO(1),	/* TSEC1 */
47 #endif
48 #ifdef CONFIG_TSEC2
49 	STD_TSEC_INFO(2),	/* TSEC2 */
50 #endif
51 #ifdef CONFIG_MPC85XX_FEC
52 	{
53 		.regs = TSEC_GET_REGS(2, 0x2000),
54 		.devname = CONFIG_MPC85XX_FEC_NAME,
55 		.phyaddr = FEC_PHY_ADDR,
56 		.flags = FEC_FLAGS,
57 		.mii_devname = DEFAULT_MII_NAME
58 	},			/* FEC */
59 #endif
60 #ifdef CONFIG_TSEC3
61 	STD_TSEC_INFO(3),	/* TSEC3 */
62 #endif
63 #ifdef CONFIG_TSEC4
64 	STD_TSEC_INFO(4),	/* TSEC4 */
65 #endif
66 };
67 
68 #define TBIANA_SETTINGS ( \
69 		TBIANA_ASYMMETRIC_PAUSE \
70 		| TBIANA_SYMMETRIC_PAUSE \
71 		| TBIANA_FULL_DUPLEX \
72 		)
73 
74 /* By default force the TBI PHY into 1000Mbps full duplex when in SGMII mode */
75 #ifndef CONFIG_TSEC_TBICR_SETTINGS
76 #define CONFIG_TSEC_TBICR_SETTINGS ( \
77 		TBICR_PHY_RESET \
78 		| TBICR_ANEG_ENABLE \
79 		| TBICR_FULL_DUPLEX \
80 		| TBICR_SPEED1_SET \
81 		)
82 #endif /* CONFIG_TSEC_TBICR_SETTINGS */
83 
84 /* Configure the TBI for SGMII operation */
85 static void tsec_configure_serdes(struct tsec_private *priv)
86 {
87 	/* Access TBI PHY registers at given TSEC register offset as opposed
88 	 * to the register offset used for external PHY accesses */
89 	tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa),
90 			0, TBI_ANA, TBIANA_SETTINGS);
91 	tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa),
92 			0, TBI_TBICON, TBICON_CLK_SELECT);
93 	tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa),
94 			0, TBI_CR, CONFIG_TSEC_TBICR_SETTINGS);
95 }
96 
97 #ifdef CONFIG_MCAST_TFTP
98 
99 /* CREDITS: linux gianfar driver, slightly adjusted... thanx. */
100 
101 /* Set the appropriate hash bit for the given addr */
102 
103 /* The algorithm works like so:
104  * 1) Take the Destination Address (ie the multicast address), and
105  * do a CRC on it (little endian), and reverse the bits of the
106  * result.
107  * 2) Use the 8 most significant bits as a hash into a 256-entry
108  * table.  The table is controlled through 8 32-bit registers:
109  * gaddr0-7.  gaddr0's MSB is entry 0, and gaddr7's LSB is entry
110  * 255.  This means that the 3 most significant bits in the
111  * hash index which gaddr register to use, and the 5 other bits
112  * indicate which bit (assuming an IBM numbering scheme, which
113  * for PowerPC (tm) is usually the case) in the register holds
114  * the entry. */
115 static int
116 tsec_mcast_addr(struct eth_device *dev, const u8 *mcast_mac, u8 set)
117 {
118 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
119 	struct tsec __iomem *regs = priv->regs;
120 	u32 result, value;
121 	u8 whichbit, whichreg;
122 
123 	result = ether_crc(MAC_ADDR_LEN, mcast_mac);
124 	whichbit = (result >> 24) & 0x1f; /* the 5 LSB = which bit to set */
125 	whichreg = result >> 29; /* the 3 MSB = which reg to set it in */
126 
127 	value = 1 << (31-whichbit);
128 
129 	if (set)
130 		setbits_be32(&regs->hash.gaddr0 + whichreg, value);
131 	else
132 		clrbits_be32(&regs->hash.gaddr0 + whichreg, value);
133 
134 	return 0;
135 }
136 #endif /* Multicast TFTP ? */
137 
138 /* Initialized required registers to appropriate values, zeroing
139  * those we don't care about (unless zero is bad, in which case,
140  * choose a more appropriate value)
141  */
142 static void init_registers(struct tsec __iomem *regs)
143 {
144 	/* Clear IEVENT */
145 	out_be32(&regs->ievent, IEVENT_INIT_CLEAR);
146 
147 	out_be32(&regs->imask, IMASK_INIT_CLEAR);
148 
149 	out_be32(&regs->hash.iaddr0, 0);
150 	out_be32(&regs->hash.iaddr1, 0);
151 	out_be32(&regs->hash.iaddr2, 0);
152 	out_be32(&regs->hash.iaddr3, 0);
153 	out_be32(&regs->hash.iaddr4, 0);
154 	out_be32(&regs->hash.iaddr5, 0);
155 	out_be32(&regs->hash.iaddr6, 0);
156 	out_be32(&regs->hash.iaddr7, 0);
157 
158 	out_be32(&regs->hash.gaddr0, 0);
159 	out_be32(&regs->hash.gaddr1, 0);
160 	out_be32(&regs->hash.gaddr2, 0);
161 	out_be32(&regs->hash.gaddr3, 0);
162 	out_be32(&regs->hash.gaddr4, 0);
163 	out_be32(&regs->hash.gaddr5, 0);
164 	out_be32(&regs->hash.gaddr6, 0);
165 	out_be32(&regs->hash.gaddr7, 0);
166 
167 	out_be32(&regs->rctrl, 0x00000000);
168 
169 	/* Init RMON mib registers */
170 	memset((void *)&regs->rmon, 0, sizeof(regs->rmon));
171 
172 	out_be32(&regs->rmon.cam1, 0xffffffff);
173 	out_be32(&regs->rmon.cam2, 0xffffffff);
174 
175 	out_be32(&regs->mrblr, MRBLR_INIT_SETTINGS);
176 
177 	out_be32(&regs->minflr, MINFLR_INIT_SETTINGS);
178 
179 	out_be32(&regs->attr, ATTR_INIT_SETTINGS);
180 	out_be32(&regs->attreli, ATTRELI_INIT_SETTINGS);
181 
182 }
183 
184 /* Configure maccfg2 based on negotiated speed and duplex
185  * reported by PHY handling code
186  */
187 static void adjust_link(struct tsec_private *priv, struct phy_device *phydev)
188 {
189 	struct tsec __iomem *regs = priv->regs;
190 	u32 ecntrl, maccfg2;
191 
192 	if (!phydev->link) {
193 		printf("%s: No link.\n", phydev->dev->name);
194 		return;
195 	}
196 
197 	/* clear all bits relative with interface mode */
198 	ecntrl = in_be32(&regs->ecntrl);
199 	ecntrl &= ~ECNTRL_R100;
200 
201 	maccfg2 = in_be32(&regs->maccfg2);
202 	maccfg2 &= ~(MACCFG2_IF | MACCFG2_FULL_DUPLEX);
203 
204 	if (phydev->duplex)
205 		maccfg2 |= MACCFG2_FULL_DUPLEX;
206 
207 	switch (phydev->speed) {
208 	case 1000:
209 		maccfg2 |= MACCFG2_GMII;
210 		break;
211 	case 100:
212 	case 10:
213 		maccfg2 |= MACCFG2_MII;
214 
215 		/* Set R100 bit in all modes although
216 		 * it is only used in RGMII mode
217 		 */
218 		if (phydev->speed == 100)
219 			ecntrl |= ECNTRL_R100;
220 		break;
221 	default:
222 		printf("%s: Speed was bad\n", phydev->dev->name);
223 		break;
224 	}
225 
226 	out_be32(&regs->ecntrl, ecntrl);
227 	out_be32(&regs->maccfg2, maccfg2);
228 
229 	printf("Speed: %d, %s duplex%s\n", phydev->speed,
230 			(phydev->duplex) ? "full" : "half",
231 			(phydev->port == PORT_FIBRE) ? ", fiber mode" : "");
232 }
233 
234 #ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
235 /*
236  * When MACCFG1[Rx_EN] is enabled during system boot as part
237  * of the eTSEC port initialization sequence,
238  * the eTSEC Rx logic may not be properly initialized.
239  */
240 void redundant_init(struct eth_device *dev)
241 {
242 	struct tsec_private *priv = dev->priv;
243 	struct tsec __iomem *regs = priv->regs;
244 	uint t, count = 0;
245 	int fail = 1;
246 	static const u8 pkt[] = {
247 		0x00, 0x1e, 0x4f, 0x12, 0xcb, 0x2c, 0x00, 0x25,
248 		0x64, 0xbb, 0xd1, 0xab, 0x08, 0x00, 0x45, 0x00,
249 		0x00, 0x5c, 0xdd, 0x22, 0x00, 0x00, 0x80, 0x01,
250 		0x1f, 0x71, 0x0a, 0xc1, 0x14, 0x22, 0x0a, 0xc1,
251 		0x14, 0x6a, 0x08, 0x00, 0xef, 0x7e, 0x02, 0x00,
252 		0x94, 0x05, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
253 		0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e,
254 		0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
255 		0x77, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
256 		0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
257 		0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
258 		0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
259 		0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70,
260 		0x71, 0x72};
261 
262 	/* Enable promiscuous mode */
263 	setbits_be32(&regs->rctrl, 0x8);
264 	/* Enable loopback mode */
265 	setbits_be32(&regs->maccfg1, MACCFG1_LOOPBACK);
266 	/* Enable transmit and receive */
267 	setbits_be32(&regs->maccfg1, MACCFG1_RX_EN | MACCFG1_TX_EN);
268 
269 	/* Tell the DMA it is clear to go */
270 	setbits_be32(&regs->dmactrl, DMACTRL_INIT_SETTINGS);
271 	out_be32(&regs->tstat, TSTAT_CLEAR_THALT);
272 	out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
273 	clrbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
274 #ifdef CONFIG_LS102XA
275 	setbits_be32(&regs->dmactrl, DMACTRL_LE);
276 #endif
277 
278 	do {
279 		uint16_t status;
280 		tsec_send(dev, (void *)pkt, sizeof(pkt));
281 
282 		/* Wait for buffer to be received */
283 		for (t = 0; in_be16(&rxbd[rx_idx].status) & RXBD_EMPTY; t++) {
284 			if (t >= 10 * TOUT_LOOP) {
285 				printf("%s: tsec: rx error\n", dev->name);
286 				break;
287 			}
288 		}
289 
290 		if (!memcmp(pkt, (void *)net_rx_packets[rx_idx], sizeof(pkt)))
291 			fail = 0;
292 
293 		out_be16(&rxbd[rx_idx].length, 0);
294 		status = RXBD_EMPTY;
295 		if ((rx_idx + 1) == PKTBUFSRX)
296 			status |= RXBD_WRAP;
297 		out_be16(&rxbd[rx_idx].status, status);
298 		rx_idx = (rx_idx + 1) % PKTBUFSRX;
299 
300 		if (in_be32(&regs->ievent) & IEVENT_BSY) {
301 			out_be32(&regs->ievent, IEVENT_BSY);
302 			out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
303 		}
304 		if (fail) {
305 			printf("loopback recv packet error!\n");
306 			clrbits_be32(&regs->maccfg1, MACCFG1_RX_EN);
307 			udelay(1000);
308 			setbits_be32(&regs->maccfg1, MACCFG1_RX_EN);
309 		}
310 	} while ((count++ < 4) && (fail == 1));
311 
312 	if (fail)
313 		panic("eTSEC init fail!\n");
314 	/* Disable promiscuous mode */
315 	clrbits_be32(&regs->rctrl, 0x8);
316 	/* Disable loopback mode */
317 	clrbits_be32(&regs->maccfg1, MACCFG1_LOOPBACK);
318 }
319 #endif
320 
321 /* Set up the buffers and their descriptors, and bring up the
322  * interface
323  */
324 static void startup_tsec(struct eth_device *dev)
325 {
326 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
327 	struct tsec __iomem *regs = priv->regs;
328 	uint16_t status;
329 	int i;
330 
331 	/* reset the indices to zero */
332 	rx_idx = 0;
333 	tx_idx = 0;
334 #ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
335 	uint svr;
336 #endif
337 
338 	/* Point to the buffer descriptors */
339 	out_be32(&regs->tbase, (u32)&txbd[0]);
340 	out_be32(&regs->rbase, (u32)&rxbd[0]);
341 
342 	/* Initialize the Rx Buffer descriptors */
343 	for (i = 0; i < PKTBUFSRX; i++) {
344 		out_be16(&rxbd[i].status, RXBD_EMPTY);
345 		out_be16(&rxbd[i].length, 0);
346 		out_be32(&rxbd[i].bufptr, (u32)net_rx_packets[i]);
347 	}
348 	status = in_be16(&rxbd[PKTBUFSRX - 1].status);
349 	out_be16(&rxbd[PKTBUFSRX - 1].status, status | RXBD_WRAP);
350 
351 	/* Initialize the TX Buffer Descriptors */
352 	for (i = 0; i < TX_BUF_CNT; i++) {
353 		out_be16(&txbd[i].status, 0);
354 		out_be16(&txbd[i].length, 0);
355 		out_be32(&txbd[i].bufptr, 0);
356 	}
357 	status = in_be16(&txbd[TX_BUF_CNT - 1].status);
358 	out_be16(&txbd[TX_BUF_CNT - 1].status, status | TXBD_WRAP);
359 
360 #ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
361 	svr = get_svr();
362 	if ((SVR_MAJ(svr) == 1) || IS_SVR_REV(svr, 2, 0))
363 		redundant_init(dev);
364 #endif
365 	/* Enable Transmit and Receive */
366 	setbits_be32(&regs->maccfg1, MACCFG1_RX_EN | MACCFG1_TX_EN);
367 
368 	/* Tell the DMA it is clear to go */
369 	setbits_be32(&regs->dmactrl, DMACTRL_INIT_SETTINGS);
370 	out_be32(&regs->tstat, TSTAT_CLEAR_THALT);
371 	out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
372 	clrbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
373 #ifdef CONFIG_LS102XA
374 	setbits_be32(&regs->dmactrl, DMACTRL_LE);
375 #endif
376 }
377 
378 /* This returns the status bits of the device.	The return value
379  * is never checked, and this is what the 8260 driver did, so we
380  * do the same.	 Presumably, this would be zero if there were no
381  * errors
382  */
383 static int tsec_send(struct eth_device *dev, void *packet, int length)
384 {
385 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
386 	struct tsec __iomem *regs = priv->regs;
387 	uint16_t status;
388 	int result = 0;
389 	int i;
390 
391 	/* Find an empty buffer descriptor */
392 	for (i = 0; in_be16(&txbd[tx_idx].status) & TXBD_READY; i++) {
393 		if (i >= TOUT_LOOP) {
394 			debug("%s: tsec: tx buffers full\n", dev->name);
395 			return result;
396 		}
397 	}
398 
399 	out_be32(&txbd[tx_idx].bufptr, (u32)packet);
400 	out_be16(&txbd[tx_idx].length, length);
401 	status = in_be16(&txbd[tx_idx].status);
402 	out_be16(&txbd[tx_idx].status, status |
403 		(TXBD_READY | TXBD_LAST | TXBD_CRC | TXBD_INTERRUPT));
404 
405 	/* Tell the DMA to go */
406 	out_be32(&regs->tstat, TSTAT_CLEAR_THALT);
407 
408 	/* Wait for buffer to be transmitted */
409 	for (i = 0; in_be16(&txbd[tx_idx].status) & TXBD_READY; i++) {
410 		if (i >= TOUT_LOOP) {
411 			debug("%s: tsec: tx error\n", dev->name);
412 			return result;
413 		}
414 	}
415 
416 	tx_idx = (tx_idx + 1) % TX_BUF_CNT;
417 	result = in_be16(&txbd[tx_idx].status) & TXBD_STATS;
418 
419 	return result;
420 }
421 
422 static int tsec_recv(struct eth_device *dev)
423 {
424 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
425 	struct tsec __iomem *regs = priv->regs;
426 
427 	while (!(in_be16(&rxbd[rx_idx].status) & RXBD_EMPTY)) {
428 		int length = in_be16(&rxbd[rx_idx].length);
429 		uint16_t status = in_be16(&rxbd[rx_idx].status);
430 
431 		/* Send the packet up if there were no errors */
432 		if (!(status & RXBD_STATS))
433 			net_process_received_packet(net_rx_packets[rx_idx],
434 						    length - 4);
435 		else
436 			printf("Got error %x\n", (status & RXBD_STATS));
437 
438 		out_be16(&rxbd[rx_idx].length, 0);
439 
440 		status = RXBD_EMPTY;
441 		/* Set the wrap bit if this is the last element in the list */
442 		if ((rx_idx + 1) == PKTBUFSRX)
443 			status |= RXBD_WRAP;
444 		out_be16(&rxbd[rx_idx].status, status);
445 
446 		rx_idx = (rx_idx + 1) % PKTBUFSRX;
447 	}
448 
449 	if (in_be32(&regs->ievent) & IEVENT_BSY) {
450 		out_be32(&regs->ievent, IEVENT_BSY);
451 		out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
452 	}
453 
454 	return -1;
455 
456 }
457 
458 /* Stop the interface */
459 static void tsec_halt(struct eth_device *dev)
460 {
461 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
462 	struct tsec __iomem *regs = priv->regs;
463 
464 	clrbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
465 	setbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
466 
467 	while ((in_be32(&regs->ievent) & (IEVENT_GRSC | IEVENT_GTSC))
468 			!= (IEVENT_GRSC | IEVENT_GTSC))
469 		;
470 
471 	clrbits_be32(&regs->maccfg1, MACCFG1_TX_EN | MACCFG1_RX_EN);
472 
473 	/* Shut down the PHY, as needed */
474 	phy_shutdown(priv->phydev);
475 }
476 
477 /* Initializes data structures and registers for the controller,
478  * and brings the interface up.	 Returns the link status, meaning
479  * that it returns success if the link is up, failure otherwise.
480  * This allows u-boot to find the first active controller.
481  */
482 static int tsec_init(struct eth_device *dev, bd_t * bd)
483 {
484 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
485 	struct tsec __iomem *regs = priv->regs;
486 	u32 tempval;
487 	int ret;
488 
489 	/* Make sure the controller is stopped */
490 	tsec_halt(dev);
491 
492 	/* Init MACCFG2.  Defaults to GMII */
493 	out_be32(&regs->maccfg2, MACCFG2_INIT_SETTINGS);
494 
495 	/* Init ECNTRL */
496 	out_be32(&regs->ecntrl, ECNTRL_INIT_SETTINGS);
497 
498 	/* Copy the station address into the address registers.
499 	 * For a station address of 0x12345678ABCD in transmission
500 	 * order (BE), MACnADDR1 is set to 0xCDAB7856 and
501 	 * MACnADDR2 is set to 0x34120000.
502 	 */
503 	tempval = (dev->enetaddr[5] << 24) | (dev->enetaddr[4] << 16) |
504 		  (dev->enetaddr[3] << 8)  |  dev->enetaddr[2];
505 
506 	out_be32(&regs->macstnaddr1, tempval);
507 
508 	tempval = (dev->enetaddr[1] << 24) | (dev->enetaddr[0] << 16);
509 
510 	out_be32(&regs->macstnaddr2, tempval);
511 
512 	/* Clear out (for the most part) the other registers */
513 	init_registers(regs);
514 
515 	/* Ready the device for tx/rx */
516 	startup_tsec(dev);
517 
518 	/* Start up the PHY */
519 	ret = phy_startup(priv->phydev);
520 	if (ret) {
521 		printf("Could not initialize PHY %s\n",
522 		       priv->phydev->dev->name);
523 		return ret;
524 	}
525 
526 	adjust_link(priv, priv->phydev);
527 
528 	/* If there's no link, fail */
529 	return priv->phydev->link ? 0 : -1;
530 }
531 
532 static phy_interface_t tsec_get_interface(struct tsec_private *priv)
533 {
534 	struct tsec __iomem *regs = priv->regs;
535 	u32 ecntrl;
536 
537 	ecntrl = in_be32(&regs->ecntrl);
538 
539 	if (ecntrl & ECNTRL_SGMII_MODE)
540 		return PHY_INTERFACE_MODE_SGMII;
541 
542 	if (ecntrl & ECNTRL_TBI_MODE) {
543 		if (ecntrl & ECNTRL_REDUCED_MODE)
544 			return PHY_INTERFACE_MODE_RTBI;
545 		else
546 			return PHY_INTERFACE_MODE_TBI;
547 	}
548 
549 	if (ecntrl & ECNTRL_REDUCED_MODE) {
550 		if (ecntrl & ECNTRL_REDUCED_MII_MODE)
551 			return PHY_INTERFACE_MODE_RMII;
552 		else {
553 			phy_interface_t interface = priv->interface;
554 
555 			/*
556 			 * This isn't autodetected, so it must
557 			 * be set by the platform code.
558 			 */
559 			if ((interface == PHY_INTERFACE_MODE_RGMII_ID) ||
560 				 (interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
561 				 (interface == PHY_INTERFACE_MODE_RGMII_RXID))
562 				return interface;
563 
564 			return PHY_INTERFACE_MODE_RGMII;
565 		}
566 	}
567 
568 	if (priv->flags & TSEC_GIGABIT)
569 		return PHY_INTERFACE_MODE_GMII;
570 
571 	return PHY_INTERFACE_MODE_MII;
572 }
573 
574 
575 /* Discover which PHY is attached to the device, and configure it
576  * properly.  If the PHY is not recognized, then return 0
577  * (failure).  Otherwise, return 1
578  */
579 static int init_phy(struct eth_device *dev)
580 {
581 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
582 	struct phy_device *phydev;
583 	struct tsec __iomem *regs = priv->regs;
584 	u32 supported = (SUPPORTED_10baseT_Half |
585 			SUPPORTED_10baseT_Full |
586 			SUPPORTED_100baseT_Half |
587 			SUPPORTED_100baseT_Full);
588 
589 	if (priv->flags & TSEC_GIGABIT)
590 		supported |= SUPPORTED_1000baseT_Full;
591 
592 	/* Assign a Physical address to the TBI */
593 	out_be32(&regs->tbipa, CONFIG_SYS_TBIPA_VALUE);
594 
595 	priv->interface = tsec_get_interface(priv);
596 
597 	if (priv->interface == PHY_INTERFACE_MODE_SGMII)
598 		tsec_configure_serdes(priv);
599 
600 	phydev = phy_connect(priv->bus, priv->phyaddr, dev, priv->interface);
601 	if (!phydev)
602 		return 0;
603 
604 	phydev->supported &= supported;
605 	phydev->advertising = phydev->supported;
606 
607 	priv->phydev = phydev;
608 
609 	phy_config(phydev);
610 
611 	return 1;
612 }
613 
614 /* Initialize device structure. Returns success if PHY
615  * initialization succeeded (i.e. if it recognizes the PHY)
616  */
617 static int tsec_initialize(bd_t *bis, struct tsec_info_struct *tsec_info)
618 {
619 	struct eth_device *dev;
620 	int i;
621 	struct tsec_private *priv;
622 
623 	dev = (struct eth_device *)malloc(sizeof *dev);
624 
625 	if (NULL == dev)
626 		return 0;
627 
628 	memset(dev, 0, sizeof *dev);
629 
630 	priv = (struct tsec_private *)malloc(sizeof(*priv));
631 
632 	if (NULL == priv)
633 		return 0;
634 
635 	priv->regs = tsec_info->regs;
636 	priv->phyregs_sgmii = tsec_info->miiregs_sgmii;
637 
638 	priv->phyaddr = tsec_info->phyaddr;
639 	priv->flags = tsec_info->flags;
640 
641 	sprintf(dev->name, tsec_info->devname);
642 	priv->interface = tsec_info->interface;
643 	priv->bus = miiphy_get_dev_by_name(tsec_info->mii_devname);
644 	dev->iobase = 0;
645 	dev->priv = priv;
646 	dev->init = tsec_init;
647 	dev->halt = tsec_halt;
648 	dev->send = tsec_send;
649 	dev->recv = tsec_recv;
650 #ifdef CONFIG_MCAST_TFTP
651 	dev->mcast = tsec_mcast_addr;
652 #endif
653 
654 	/* Tell u-boot to get the addr from the env */
655 	for (i = 0; i < 6; i++)
656 		dev->enetaddr[i] = 0;
657 
658 	eth_register(dev);
659 
660 	/* Reset the MAC */
661 	setbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET);
662 	udelay(2);  /* Soft Reset must be asserted for 3 TX clocks */
663 	clrbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET);
664 
665 	/* Try to initialize PHY here, and return */
666 	return init_phy(dev);
667 }
668 
669 /*
670  * Initialize all the TSEC devices
671  *
672  * Returns the number of TSEC devices that were initialized
673  */
674 int tsec_eth_init(bd_t *bis, struct tsec_info_struct *tsecs, int num)
675 {
676 	int i;
677 	int ret, count = 0;
678 
679 	for (i = 0; i < num; i++) {
680 		ret = tsec_initialize(bis, &tsecs[i]);
681 		if (ret > 0)
682 			count += ret;
683 	}
684 
685 	return count;
686 }
687 
688 int tsec_standard_init(bd_t *bis)
689 {
690 	struct fsl_pq_mdio_info info;
691 
692 	info.regs = TSEC_GET_MDIO_REGS_BASE(1);
693 	info.name = DEFAULT_MII_NAME;
694 
695 	fsl_pq_mdio_init(bis, &info);
696 
697 	return tsec_eth_init(bis, tsec_info, ARRAY_SIZE(tsec_info));
698 }
699