xref: /openbmc/u-boot/drivers/net/tsec.c (revision 06fd66a4)
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 *)NetRxPackets[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)NetRxPackets[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 			NetReceive(NetRxPackets[rx_idx], length - 4);
434 		else
435 			printf("Got error %x\n", (status & RXBD_STATS));
436 
437 		out_be16(&rxbd[rx_idx].length, 0);
438 
439 		status = RXBD_EMPTY;
440 		/* Set the wrap bit if this is the last element in the list */
441 		if ((rx_idx + 1) == PKTBUFSRX)
442 			status |= RXBD_WRAP;
443 		out_be16(&rxbd[rx_idx].status, status);
444 
445 		rx_idx = (rx_idx + 1) % PKTBUFSRX;
446 	}
447 
448 	if (in_be32(&regs->ievent) & IEVENT_BSY) {
449 		out_be32(&regs->ievent, IEVENT_BSY);
450 		out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
451 	}
452 
453 	return -1;
454 
455 }
456 
457 /* Stop the interface */
458 static void tsec_halt(struct eth_device *dev)
459 {
460 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
461 	struct tsec __iomem *regs = priv->regs;
462 
463 	clrbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
464 	setbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
465 
466 	while ((in_be32(&regs->ievent) & (IEVENT_GRSC | IEVENT_GTSC))
467 			!= (IEVENT_GRSC | IEVENT_GTSC))
468 		;
469 
470 	clrbits_be32(&regs->maccfg1, MACCFG1_TX_EN | MACCFG1_RX_EN);
471 
472 	/* Shut down the PHY, as needed */
473 	phy_shutdown(priv->phydev);
474 }
475 
476 /* Initializes data structures and registers for the controller,
477  * and brings the interface up.	 Returns the link status, meaning
478  * that it returns success if the link is up, failure otherwise.
479  * This allows u-boot to find the first active controller.
480  */
481 static int tsec_init(struct eth_device *dev, bd_t * bd)
482 {
483 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
484 	struct tsec __iomem *regs = priv->regs;
485 	u32 tempval;
486 	int ret;
487 
488 	/* Make sure the controller is stopped */
489 	tsec_halt(dev);
490 
491 	/* Init MACCFG2.  Defaults to GMII */
492 	out_be32(&regs->maccfg2, MACCFG2_INIT_SETTINGS);
493 
494 	/* Init ECNTRL */
495 	out_be32(&regs->ecntrl, ECNTRL_INIT_SETTINGS);
496 
497 	/* Copy the station address into the address registers.
498 	 * For a station address of 0x12345678ABCD in transmission
499 	 * order (BE), MACnADDR1 is set to 0xCDAB7856 and
500 	 * MACnADDR2 is set to 0x34120000.
501 	 */
502 	tempval = (dev->enetaddr[5] << 24) | (dev->enetaddr[4] << 16) |
503 		  (dev->enetaddr[3] << 8)  |  dev->enetaddr[2];
504 
505 	out_be32(&regs->macstnaddr1, tempval);
506 
507 	tempval = (dev->enetaddr[1] << 24) | (dev->enetaddr[0] << 16);
508 
509 	out_be32(&regs->macstnaddr2, tempval);
510 
511 	/* Clear out (for the most part) the other registers */
512 	init_registers(regs);
513 
514 	/* Ready the device for tx/rx */
515 	startup_tsec(dev);
516 
517 	/* Start up the PHY */
518 	ret = phy_startup(priv->phydev);
519 	if (ret) {
520 		printf("Could not initialize PHY %s\n",
521 		       priv->phydev->dev->name);
522 		return ret;
523 	}
524 
525 	adjust_link(priv, priv->phydev);
526 
527 	/* If there's no link, fail */
528 	return priv->phydev->link ? 0 : -1;
529 }
530 
531 static phy_interface_t tsec_get_interface(struct tsec_private *priv)
532 {
533 	struct tsec __iomem *regs = priv->regs;
534 	u32 ecntrl;
535 
536 	ecntrl = in_be32(&regs->ecntrl);
537 
538 	if (ecntrl & ECNTRL_SGMII_MODE)
539 		return PHY_INTERFACE_MODE_SGMII;
540 
541 	if (ecntrl & ECNTRL_TBI_MODE) {
542 		if (ecntrl & ECNTRL_REDUCED_MODE)
543 			return PHY_INTERFACE_MODE_RTBI;
544 		else
545 			return PHY_INTERFACE_MODE_TBI;
546 	}
547 
548 	if (ecntrl & ECNTRL_REDUCED_MODE) {
549 		if (ecntrl & ECNTRL_REDUCED_MII_MODE)
550 			return PHY_INTERFACE_MODE_RMII;
551 		else {
552 			phy_interface_t interface = priv->interface;
553 
554 			/*
555 			 * This isn't autodetected, so it must
556 			 * be set by the platform code.
557 			 */
558 			if ((interface == PHY_INTERFACE_MODE_RGMII_ID) ||
559 				 (interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
560 				 (interface == PHY_INTERFACE_MODE_RGMII_RXID))
561 				return interface;
562 
563 			return PHY_INTERFACE_MODE_RGMII;
564 		}
565 	}
566 
567 	if (priv->flags & TSEC_GIGABIT)
568 		return PHY_INTERFACE_MODE_GMII;
569 
570 	return PHY_INTERFACE_MODE_MII;
571 }
572 
573 
574 /* Discover which PHY is attached to the device, and configure it
575  * properly.  If the PHY is not recognized, then return 0
576  * (failure).  Otherwise, return 1
577  */
578 static int init_phy(struct eth_device *dev)
579 {
580 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
581 	struct phy_device *phydev;
582 	struct tsec __iomem *regs = priv->regs;
583 	u32 supported = (SUPPORTED_10baseT_Half |
584 			SUPPORTED_10baseT_Full |
585 			SUPPORTED_100baseT_Half |
586 			SUPPORTED_100baseT_Full);
587 
588 	if (priv->flags & TSEC_GIGABIT)
589 		supported |= SUPPORTED_1000baseT_Full;
590 
591 	/* Assign a Physical address to the TBI */
592 	out_be32(&regs->tbipa, CONFIG_SYS_TBIPA_VALUE);
593 
594 	priv->interface = tsec_get_interface(priv);
595 
596 	if (priv->interface == PHY_INTERFACE_MODE_SGMII)
597 		tsec_configure_serdes(priv);
598 
599 	phydev = phy_connect(priv->bus, priv->phyaddr, dev, priv->interface);
600 	if (!phydev)
601 		return 0;
602 
603 	phydev->supported &= supported;
604 	phydev->advertising = phydev->supported;
605 
606 	priv->phydev = phydev;
607 
608 	phy_config(phydev);
609 
610 	return 1;
611 }
612 
613 /* Initialize device structure. Returns success if PHY
614  * initialization succeeded (i.e. if it recognizes the PHY)
615  */
616 static int tsec_initialize(bd_t *bis, struct tsec_info_struct *tsec_info)
617 {
618 	struct eth_device *dev;
619 	int i;
620 	struct tsec_private *priv;
621 
622 	dev = (struct eth_device *)malloc(sizeof *dev);
623 
624 	if (NULL == dev)
625 		return 0;
626 
627 	memset(dev, 0, sizeof *dev);
628 
629 	priv = (struct tsec_private *)malloc(sizeof(*priv));
630 
631 	if (NULL == priv)
632 		return 0;
633 
634 	priv->regs = tsec_info->regs;
635 	priv->phyregs_sgmii = tsec_info->miiregs_sgmii;
636 
637 	priv->phyaddr = tsec_info->phyaddr;
638 	priv->flags = tsec_info->flags;
639 
640 	sprintf(dev->name, tsec_info->devname);
641 	priv->interface = tsec_info->interface;
642 	priv->bus = miiphy_get_dev_by_name(tsec_info->mii_devname);
643 	dev->iobase = 0;
644 	dev->priv = priv;
645 	dev->init = tsec_init;
646 	dev->halt = tsec_halt;
647 	dev->send = tsec_send;
648 	dev->recv = tsec_recv;
649 #ifdef CONFIG_MCAST_TFTP
650 	dev->mcast = tsec_mcast_addr;
651 #endif
652 
653 	/* Tell u-boot to get the addr from the env */
654 	for (i = 0; i < 6; i++)
655 		dev->enetaddr[i] = 0;
656 
657 	eth_register(dev);
658 
659 	/* Reset the MAC */
660 	setbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET);
661 	udelay(2);  /* Soft Reset must be asserted for 3 TX clocks */
662 	clrbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET);
663 
664 	/* Try to initialize PHY here, and return */
665 	return init_phy(dev);
666 }
667 
668 /*
669  * Initialize all the TSEC devices
670  *
671  * Returns the number of TSEC devices that were initialized
672  */
673 int tsec_eth_init(bd_t *bis, struct tsec_info_struct *tsecs, int num)
674 {
675 	int i;
676 	int ret, count = 0;
677 
678 	for (i = 0; i < num; i++) {
679 		ret = tsec_initialize(bis, &tsecs[i]);
680 		if (ret > 0)
681 			count += ret;
682 	}
683 
684 	return count;
685 }
686 
687 int tsec_standard_init(bd_t *bis)
688 {
689 	struct fsl_pq_mdio_info info;
690 
691 	info.regs = TSEC_GET_MDIO_REGS_BASE(1);
692 	info.name = DEFAULT_MII_NAME;
693 
694 	fsl_pq_mdio_init(bis, &info);
695 
696 	return tsec_eth_init(bis, tsec_info, ARRAY_SIZE(tsec_info));
697 }
698