xref: /openbmc/u-boot/drivers/net/tsec.c (revision c2800b16)
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 
24 DECLARE_GLOBAL_DATA_PTR;
25 
26 #define TX_BUF_CNT		2
27 
28 static uint rx_idx;		/* index of the current RX buffer */
29 static uint tx_idx;		/* index of the current TX buffer */
30 
31 #ifdef __GNUC__
32 static struct txbd8 __iomem txbd[TX_BUF_CNT] __aligned(8);
33 static struct rxbd8 __iomem rxbd[PKTBUFSRX] __aligned(8);
34 
35 #else
36 #error "rtx must be 64-bit aligned"
37 #endif
38 
39 static int tsec_send(struct eth_device *dev, void *packet, int length);
40 
41 /* Default initializations for TSEC controllers. */
42 
43 static struct tsec_info_struct tsec_info[] = {
44 #ifdef CONFIG_TSEC1
45 	STD_TSEC_INFO(1),	/* TSEC1 */
46 #endif
47 #ifdef CONFIG_TSEC2
48 	STD_TSEC_INFO(2),	/* TSEC2 */
49 #endif
50 #ifdef CONFIG_MPC85XX_FEC
51 	{
52 		.regs = TSEC_GET_REGS(2, 0x2000),
53 		.devname = CONFIG_MPC85XX_FEC_NAME,
54 		.phyaddr = FEC_PHY_ADDR,
55 		.flags = FEC_FLAGS,
56 		.mii_devname = DEFAULT_MII_NAME
57 	},			/* FEC */
58 #endif
59 #ifdef CONFIG_TSEC3
60 	STD_TSEC_INFO(3),	/* TSEC3 */
61 #endif
62 #ifdef CONFIG_TSEC4
63 	STD_TSEC_INFO(4),	/* TSEC4 */
64 #endif
65 };
66 
67 #define TBIANA_SETTINGS ( \
68 		TBIANA_ASYMMETRIC_PAUSE \
69 		| TBIANA_SYMMETRIC_PAUSE \
70 		| TBIANA_FULL_DUPLEX \
71 		)
72 
73 /* By default force the TBI PHY into 1000Mbps full duplex when in SGMII mode */
74 #ifndef CONFIG_TSEC_TBICR_SETTINGS
75 #define CONFIG_TSEC_TBICR_SETTINGS ( \
76 		TBICR_PHY_RESET \
77 		| TBICR_ANEG_ENABLE \
78 		| TBICR_FULL_DUPLEX \
79 		| TBICR_SPEED1_SET \
80 		)
81 #endif /* CONFIG_TSEC_TBICR_SETTINGS */
82 
83 /* Configure the TBI for SGMII operation */
84 static void tsec_configure_serdes(struct tsec_private *priv)
85 {
86 	/* Access TBI PHY registers at given TSEC register offset as opposed
87 	 * to the register offset used for external PHY accesses */
88 	tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa),
89 			0, TBI_ANA, TBIANA_SETTINGS);
90 	tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa),
91 			0, TBI_TBICON, TBICON_CLK_SELECT);
92 	tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa),
93 			0, TBI_CR, CONFIG_TSEC_TBICR_SETTINGS);
94 }
95 
96 #ifdef CONFIG_MCAST_TFTP
97 
98 /* CREDITS: linux gianfar driver, slightly adjusted... thanx. */
99 
100 /* Set the appropriate hash bit for the given addr */
101 
102 /* The algorithm works like so:
103  * 1) Take the Destination Address (ie the multicast address), and
104  * do a CRC on it (little endian), and reverse the bits of the
105  * result.
106  * 2) Use the 8 most significant bits as a hash into a 256-entry
107  * table.  The table is controlled through 8 32-bit registers:
108  * gaddr0-7.  gaddr0's MSB is entry 0, and gaddr7's LSB is entry
109  * 255.  This means that the 3 most significant bits in the
110  * hash index which gaddr register to use, and the 5 other bits
111  * indicate which bit (assuming an IBM numbering scheme, which
112  * for PowerPC (tm) is usually the case) in the register holds
113  * the entry. */
114 static int
115 tsec_mcast_addr(struct eth_device *dev, const u8 *mcast_mac, u8 set)
116 {
117 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
118 	struct tsec __iomem *regs = priv->regs;
119 	u32 result, value;
120 	u8 whichbit, whichreg;
121 
122 	result = ether_crc(MAC_ADDR_LEN, mcast_mac);
123 	whichbit = (result >> 24) & 0x1f; /* the 5 LSB = which bit to set */
124 	whichreg = result >> 29; /* the 3 MSB = which reg to set it in */
125 
126 	value = 1 << (31-whichbit);
127 
128 	if (set)
129 		setbits_be32(&regs->hash.gaddr0 + whichreg, value);
130 	else
131 		clrbits_be32(&regs->hash.gaddr0 + whichreg, value);
132 
133 	return 0;
134 }
135 #endif /* Multicast TFTP ? */
136 
137 /* Initialized required registers to appropriate values, zeroing
138  * those we don't care about (unless zero is bad, in which case,
139  * choose a more appropriate value)
140  */
141 static void init_registers(struct tsec __iomem *regs)
142 {
143 	/* Clear IEVENT */
144 	out_be32(&regs->ievent, IEVENT_INIT_CLEAR);
145 
146 	out_be32(&regs->imask, IMASK_INIT_CLEAR);
147 
148 	out_be32(&regs->hash.iaddr0, 0);
149 	out_be32(&regs->hash.iaddr1, 0);
150 	out_be32(&regs->hash.iaddr2, 0);
151 	out_be32(&regs->hash.iaddr3, 0);
152 	out_be32(&regs->hash.iaddr4, 0);
153 	out_be32(&regs->hash.iaddr5, 0);
154 	out_be32(&regs->hash.iaddr6, 0);
155 	out_be32(&regs->hash.iaddr7, 0);
156 
157 	out_be32(&regs->hash.gaddr0, 0);
158 	out_be32(&regs->hash.gaddr1, 0);
159 	out_be32(&regs->hash.gaddr2, 0);
160 	out_be32(&regs->hash.gaddr3, 0);
161 	out_be32(&regs->hash.gaddr4, 0);
162 	out_be32(&regs->hash.gaddr5, 0);
163 	out_be32(&regs->hash.gaddr6, 0);
164 	out_be32(&regs->hash.gaddr7, 0);
165 
166 	out_be32(&regs->rctrl, 0x00000000);
167 
168 	/* Init RMON mib registers */
169 	memset((void *)&regs->rmon, 0, sizeof(regs->rmon));
170 
171 	out_be32(&regs->rmon.cam1, 0xffffffff);
172 	out_be32(&regs->rmon.cam2, 0xffffffff);
173 
174 	out_be32(&regs->mrblr, MRBLR_INIT_SETTINGS);
175 
176 	out_be32(&regs->minflr, MINFLR_INIT_SETTINGS);
177 
178 	out_be32(&regs->attr, ATTR_INIT_SETTINGS);
179 	out_be32(&regs->attreli, ATTRELI_INIT_SETTINGS);
180 
181 }
182 
183 /* Configure maccfg2 based on negotiated speed and duplex
184  * reported by PHY handling code
185  */
186 static void adjust_link(struct tsec_private *priv, struct phy_device *phydev)
187 {
188 	struct tsec __iomem *regs = priv->regs;
189 	u32 ecntrl, maccfg2;
190 
191 	if (!phydev->link) {
192 		printf("%s: No link.\n", phydev->dev->name);
193 		return;
194 	}
195 
196 	/* clear all bits relative with interface mode */
197 	ecntrl = in_be32(&regs->ecntrl);
198 	ecntrl &= ~ECNTRL_R100;
199 
200 	maccfg2 = in_be32(&regs->maccfg2);
201 	maccfg2 &= ~(MACCFG2_IF | MACCFG2_FULL_DUPLEX);
202 
203 	if (phydev->duplex)
204 		maccfg2 |= MACCFG2_FULL_DUPLEX;
205 
206 	switch (phydev->speed) {
207 	case 1000:
208 		maccfg2 |= MACCFG2_GMII;
209 		break;
210 	case 100:
211 	case 10:
212 		maccfg2 |= MACCFG2_MII;
213 
214 		/* Set R100 bit in all modes although
215 		 * it is only used in RGMII mode
216 		 */
217 		if (phydev->speed == 100)
218 			ecntrl |= ECNTRL_R100;
219 		break;
220 	default:
221 		printf("%s: Speed was bad\n", phydev->dev->name);
222 		break;
223 	}
224 
225 	out_be32(&regs->ecntrl, ecntrl);
226 	out_be32(&regs->maccfg2, maccfg2);
227 
228 	printf("Speed: %d, %s duplex%s\n", phydev->speed,
229 			(phydev->duplex) ? "full" : "half",
230 			(phydev->port == PORT_FIBRE) ? ", fiber mode" : "");
231 }
232 
233 #ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
234 /*
235  * When MACCFG1[Rx_EN] is enabled during system boot as part
236  * of the eTSEC port initialization sequence,
237  * the eTSEC Rx logic may not be properly initialized.
238  */
239 void redundant_init(struct eth_device *dev)
240 {
241 	struct tsec_private *priv = dev->priv;
242 	struct tsec __iomem *regs = priv->regs;
243 	uint t, count = 0;
244 	int fail = 1;
245 	static const u8 pkt[] = {
246 		0x00, 0x1e, 0x4f, 0x12, 0xcb, 0x2c, 0x00, 0x25,
247 		0x64, 0xbb, 0xd1, 0xab, 0x08, 0x00, 0x45, 0x00,
248 		0x00, 0x5c, 0xdd, 0x22, 0x00, 0x00, 0x80, 0x01,
249 		0x1f, 0x71, 0x0a, 0xc1, 0x14, 0x22, 0x0a, 0xc1,
250 		0x14, 0x6a, 0x08, 0x00, 0xef, 0x7e, 0x02, 0x00,
251 		0x94, 0x05, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
252 		0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e,
253 		0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
254 		0x77, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
255 		0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
256 		0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
257 		0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
258 		0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70,
259 		0x71, 0x72};
260 
261 	/* Enable promiscuous mode */
262 	setbits_be32(&regs->rctrl, 0x8);
263 	/* Enable loopback mode */
264 	setbits_be32(&regs->maccfg1, MACCFG1_LOOPBACK);
265 	/* Enable transmit and receive */
266 	setbits_be32(&regs->maccfg1, MACCFG1_RX_EN | MACCFG1_TX_EN);
267 
268 	/* Tell the DMA it is clear to go */
269 	setbits_be32(&regs->dmactrl, DMACTRL_INIT_SETTINGS);
270 	out_be32(&regs->tstat, TSTAT_CLEAR_THALT);
271 	out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
272 	clrbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
273 
274 	do {
275 		uint16_t status;
276 		tsec_send(dev, (void *)pkt, sizeof(pkt));
277 
278 		/* Wait for buffer to be received */
279 		for (t = 0; in_be16(&rxbd[rx_idx].status) & RXBD_EMPTY; t++) {
280 			if (t >= 10 * TOUT_LOOP) {
281 				printf("%s: tsec: rx error\n", dev->name);
282 				break;
283 			}
284 		}
285 
286 		if (!memcmp(pkt, (void *)NetRxPackets[rx_idx], sizeof(pkt)))
287 			fail = 0;
288 
289 		out_be16(&rxbd[rx_idx].length, 0);
290 		status = RXBD_EMPTY;
291 		if ((rx_idx + 1) == PKTBUFSRX)
292 			status |= RXBD_WRAP;
293 		out_be16(&rxbd[rx_idx].status, status);
294 		rx_idx = (rx_idx + 1) % PKTBUFSRX;
295 
296 		if (in_be32(&regs->ievent) & IEVENT_BSY) {
297 			out_be32(&regs->ievent, IEVENT_BSY);
298 			out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
299 		}
300 		if (fail) {
301 			printf("loopback recv packet error!\n");
302 			clrbits_be32(&regs->maccfg1, MACCFG1_RX_EN);
303 			udelay(1000);
304 			setbits_be32(&regs->maccfg1, MACCFG1_RX_EN);
305 		}
306 	} while ((count++ < 4) && (fail == 1));
307 
308 	if (fail)
309 		panic("eTSEC init fail!\n");
310 	/* Disable promiscuous mode */
311 	clrbits_be32(&regs->rctrl, 0x8);
312 	/* Disable loopback mode */
313 	clrbits_be32(&regs->maccfg1, MACCFG1_LOOPBACK);
314 }
315 #endif
316 
317 /* Set up the buffers and their descriptors, and bring up the
318  * interface
319  */
320 static void startup_tsec(struct eth_device *dev)
321 {
322 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
323 	struct tsec __iomem *regs = priv->regs;
324 	uint16_t status;
325 	int i;
326 
327 	/* reset the indices to zero */
328 	rx_idx = 0;
329 	tx_idx = 0;
330 #ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
331 	uint svr;
332 #endif
333 
334 	/* Point to the buffer descriptors */
335 	out_be32(&regs->tbase, (u32)&txbd[0]);
336 	out_be32(&regs->rbase, (u32)&rxbd[0]);
337 
338 	/* Initialize the Rx Buffer descriptors */
339 	for (i = 0; i < PKTBUFSRX; i++) {
340 		out_be16(&rxbd[i].status, RXBD_EMPTY);
341 		out_be16(&rxbd[i].length, 0);
342 		out_be32(&rxbd[i].bufptr, (u32)NetRxPackets[i]);
343 	}
344 	status = in_be16(&rxbd[PKTBUFSRX - 1].status);
345 	out_be16(&rxbd[PKTBUFSRX - 1].status, status | RXBD_WRAP);
346 
347 	/* Initialize the TX Buffer Descriptors */
348 	for (i = 0; i < TX_BUF_CNT; i++) {
349 		out_be16(&txbd[i].status, 0);
350 		out_be16(&txbd[i].length, 0);
351 		out_be32(&txbd[i].bufptr, 0);
352 	}
353 	status = in_be16(&txbd[TX_BUF_CNT - 1].status);
354 	out_be16(&txbd[TX_BUF_CNT - 1].status, status | TXBD_WRAP);
355 
356 #ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
357 	svr = get_svr();
358 	if ((SVR_MAJ(svr) == 1) || IS_SVR_REV(svr, 2, 0))
359 		redundant_init(dev);
360 #endif
361 	/* Enable Transmit and Receive */
362 	setbits_be32(&regs->maccfg1, MACCFG1_RX_EN | MACCFG1_TX_EN);
363 
364 	/* Tell the DMA it is clear to go */
365 	setbits_be32(&regs->dmactrl, DMACTRL_INIT_SETTINGS);
366 	out_be32(&regs->tstat, TSTAT_CLEAR_THALT);
367 	out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
368 	clrbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
369 }
370 
371 /* This returns the status bits of the device.	The return value
372  * is never checked, and this is what the 8260 driver did, so we
373  * do the same.	 Presumably, this would be zero if there were no
374  * errors
375  */
376 static int tsec_send(struct eth_device *dev, void *packet, int length)
377 {
378 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
379 	struct tsec __iomem *regs = priv->regs;
380 	uint16_t status;
381 	int result = 0;
382 	int i;
383 
384 	/* Find an empty buffer descriptor */
385 	for (i = 0; in_be16(&txbd[tx_idx].status) & TXBD_READY; i++) {
386 		if (i >= TOUT_LOOP) {
387 			debug("%s: tsec: tx buffers full\n", dev->name);
388 			return result;
389 		}
390 	}
391 
392 	out_be32(&txbd[tx_idx].bufptr, (u32)packet);
393 	out_be16(&txbd[tx_idx].length, length);
394 	status = in_be16(&txbd[tx_idx].status);
395 	out_be16(&txbd[tx_idx].status, status |
396 		(TXBD_READY | TXBD_LAST | TXBD_CRC | TXBD_INTERRUPT));
397 
398 	/* Tell the DMA to go */
399 	out_be32(&regs->tstat, TSTAT_CLEAR_THALT);
400 
401 	/* Wait for buffer to be transmitted */
402 	for (i = 0; in_be16(&txbd[tx_idx].status) & TXBD_READY; i++) {
403 		if (i >= TOUT_LOOP) {
404 			debug("%s: tsec: tx error\n", dev->name);
405 			return result;
406 		}
407 	}
408 
409 	tx_idx = (tx_idx + 1) % TX_BUF_CNT;
410 	result = in_be16(&txbd[tx_idx].status) & TXBD_STATS;
411 
412 	return result;
413 }
414 
415 static int tsec_recv(struct eth_device *dev)
416 {
417 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
418 	struct tsec __iomem *regs = priv->regs;
419 
420 	while (!(in_be16(&rxbd[rx_idx].status) & RXBD_EMPTY)) {
421 		int length = in_be16(&rxbd[rx_idx].length);
422 		uint16_t status = in_be16(&rxbd[rx_idx].status);
423 
424 		/* Send the packet up if there were no errors */
425 		if (!(status & RXBD_STATS))
426 			NetReceive(NetRxPackets[rx_idx], length - 4);
427 		else
428 			printf("Got error %x\n", (status & RXBD_STATS));
429 
430 		out_be16(&rxbd[rx_idx].length, 0);
431 
432 		status = RXBD_EMPTY;
433 		/* Set the wrap bit if this is the last element in the list */
434 		if ((rx_idx + 1) == PKTBUFSRX)
435 			status |= RXBD_WRAP;
436 		out_be16(&rxbd[rx_idx].status, status);
437 
438 		rx_idx = (rx_idx + 1) % PKTBUFSRX;
439 	}
440 
441 	if (in_be32(&regs->ievent) & IEVENT_BSY) {
442 		out_be32(&regs->ievent, IEVENT_BSY);
443 		out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
444 	}
445 
446 	return -1;
447 
448 }
449 
450 /* Stop the interface */
451 static void tsec_halt(struct eth_device *dev)
452 {
453 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
454 	struct tsec __iomem *regs = priv->regs;
455 
456 	clrbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
457 	setbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
458 
459 	while ((in_be32(&regs->ievent) & (IEVENT_GRSC | IEVENT_GTSC))
460 			!= (IEVENT_GRSC | IEVENT_GTSC))
461 		;
462 
463 	clrbits_be32(&regs->maccfg1, MACCFG1_TX_EN | MACCFG1_RX_EN);
464 
465 	/* Shut down the PHY, as needed */
466 	phy_shutdown(priv->phydev);
467 }
468 
469 /* Initializes data structures and registers for the controller,
470  * and brings the interface up.	 Returns the link status, meaning
471  * that it returns success if the link is up, failure otherwise.
472  * This allows u-boot to find the first active controller.
473  */
474 static int tsec_init(struct eth_device *dev, bd_t * bd)
475 {
476 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
477 	struct tsec __iomem *regs = priv->regs;
478 	u32 tempval;
479 	int ret;
480 
481 	/* Make sure the controller is stopped */
482 	tsec_halt(dev);
483 
484 	/* Init MACCFG2.  Defaults to GMII */
485 	out_be32(&regs->maccfg2, MACCFG2_INIT_SETTINGS);
486 
487 	/* Init ECNTRL */
488 	out_be32(&regs->ecntrl, ECNTRL_INIT_SETTINGS);
489 
490 	/* Copy the station address into the address registers.
491 	 * For a station address of 0x12345678ABCD in transmission
492 	 * order (BE), MACnADDR1 is set to 0xCDAB7856 and
493 	 * MACnADDR2 is set to 0x34120000.
494 	 */
495 	tempval = (dev->enetaddr[5] << 24) | (dev->enetaddr[4] << 16) |
496 		  (dev->enetaddr[3] << 8)  |  dev->enetaddr[2];
497 
498 	out_be32(&regs->macstnaddr1, tempval);
499 
500 	tempval = (dev->enetaddr[1] << 24) | (dev->enetaddr[0] << 16);
501 
502 	out_be32(&regs->macstnaddr2, tempval);
503 
504 	/* Clear out (for the most part) the other registers */
505 	init_registers(regs);
506 
507 	/* Ready the device for tx/rx */
508 	startup_tsec(dev);
509 
510 	/* Start up the PHY */
511 	ret = phy_startup(priv->phydev);
512 	if (ret) {
513 		printf("Could not initialize PHY %s\n",
514 		       priv->phydev->dev->name);
515 		return ret;
516 	}
517 
518 	adjust_link(priv, priv->phydev);
519 
520 	/* If there's no link, fail */
521 	return priv->phydev->link ? 0 : -1;
522 }
523 
524 static phy_interface_t tsec_get_interface(struct tsec_private *priv)
525 {
526 	struct tsec __iomem *regs = priv->regs;
527 	u32 ecntrl;
528 
529 	ecntrl = in_be32(&regs->ecntrl);
530 
531 	if (ecntrl & ECNTRL_SGMII_MODE)
532 		return PHY_INTERFACE_MODE_SGMII;
533 
534 	if (ecntrl & ECNTRL_TBI_MODE) {
535 		if (ecntrl & ECNTRL_REDUCED_MODE)
536 			return PHY_INTERFACE_MODE_RTBI;
537 		else
538 			return PHY_INTERFACE_MODE_TBI;
539 	}
540 
541 	if (ecntrl & ECNTRL_REDUCED_MODE) {
542 		if (ecntrl & ECNTRL_REDUCED_MII_MODE)
543 			return PHY_INTERFACE_MODE_RMII;
544 		else {
545 			phy_interface_t interface = priv->interface;
546 
547 			/*
548 			 * This isn't autodetected, so it must
549 			 * be set by the platform code.
550 			 */
551 			if ((interface == PHY_INTERFACE_MODE_RGMII_ID) ||
552 				 (interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
553 				 (interface == PHY_INTERFACE_MODE_RGMII_RXID))
554 				return interface;
555 
556 			return PHY_INTERFACE_MODE_RGMII;
557 		}
558 	}
559 
560 	if (priv->flags & TSEC_GIGABIT)
561 		return PHY_INTERFACE_MODE_GMII;
562 
563 	return PHY_INTERFACE_MODE_MII;
564 }
565 
566 
567 /* Discover which PHY is attached to the device, and configure it
568  * properly.  If the PHY is not recognized, then return 0
569  * (failure).  Otherwise, return 1
570  */
571 static int init_phy(struct eth_device *dev)
572 {
573 	struct tsec_private *priv = (struct tsec_private *)dev->priv;
574 	struct phy_device *phydev;
575 	struct tsec __iomem *regs = priv->regs;
576 	u32 supported = (SUPPORTED_10baseT_Half |
577 			SUPPORTED_10baseT_Full |
578 			SUPPORTED_100baseT_Half |
579 			SUPPORTED_100baseT_Full);
580 
581 	if (priv->flags & TSEC_GIGABIT)
582 		supported |= SUPPORTED_1000baseT_Full;
583 
584 	/* Assign a Physical address to the TBI */
585 	out_be32(&regs->tbipa, CONFIG_SYS_TBIPA_VALUE);
586 
587 	priv->interface = tsec_get_interface(priv);
588 
589 	if (priv->interface == PHY_INTERFACE_MODE_SGMII)
590 		tsec_configure_serdes(priv);
591 
592 	phydev = phy_connect(priv->bus, priv->phyaddr, dev, priv->interface);
593 
594 	phydev->supported &= supported;
595 	phydev->advertising = phydev->supported;
596 
597 	priv->phydev = phydev;
598 
599 	phy_config(phydev);
600 
601 	return 1;
602 }
603 
604 /* Initialize device structure. Returns success if PHY
605  * initialization succeeded (i.e. if it recognizes the PHY)
606  */
607 static int tsec_initialize(bd_t *bis, struct tsec_info_struct *tsec_info)
608 {
609 	struct eth_device *dev;
610 	int i;
611 	struct tsec_private *priv;
612 
613 	dev = (struct eth_device *)malloc(sizeof *dev);
614 
615 	if (NULL == dev)
616 		return 0;
617 
618 	memset(dev, 0, sizeof *dev);
619 
620 	priv = (struct tsec_private *)malloc(sizeof(*priv));
621 
622 	if (NULL == priv)
623 		return 0;
624 
625 	priv->regs = tsec_info->regs;
626 	priv->phyregs_sgmii = tsec_info->miiregs_sgmii;
627 
628 	priv->phyaddr = tsec_info->phyaddr;
629 	priv->flags = tsec_info->flags;
630 
631 	sprintf(dev->name, tsec_info->devname);
632 	priv->interface = tsec_info->interface;
633 	priv->bus = miiphy_get_dev_by_name(tsec_info->mii_devname);
634 	dev->iobase = 0;
635 	dev->priv = priv;
636 	dev->init = tsec_init;
637 	dev->halt = tsec_halt;
638 	dev->send = tsec_send;
639 	dev->recv = tsec_recv;
640 #ifdef CONFIG_MCAST_TFTP
641 	dev->mcast = tsec_mcast_addr;
642 #endif
643 
644 	/* Tell u-boot to get the addr from the env */
645 	for (i = 0; i < 6; i++)
646 		dev->enetaddr[i] = 0;
647 
648 	eth_register(dev);
649 
650 	/* Reset the MAC */
651 	setbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET);
652 	udelay(2);  /* Soft Reset must be asserted for 3 TX clocks */
653 	clrbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET);
654 
655 	/* Try to initialize PHY here, and return */
656 	return init_phy(dev);
657 }
658 
659 /*
660  * Initialize all the TSEC devices
661  *
662  * Returns the number of TSEC devices that were initialized
663  */
664 int tsec_eth_init(bd_t *bis, struct tsec_info_struct *tsecs, int num)
665 {
666 	int i;
667 	int ret, count = 0;
668 
669 	for (i = 0; i < num; i++) {
670 		ret = tsec_initialize(bis, &tsecs[i]);
671 		if (ret > 0)
672 			count += ret;
673 	}
674 
675 	return count;
676 }
677 
678 int tsec_standard_init(bd_t *bis)
679 {
680 	struct fsl_pq_mdio_info info;
681 
682 	info.regs = TSEC_GET_MDIO_REGS_BASE(1);
683 	info.name = DEFAULT_MII_NAME;
684 
685 	fsl_pq_mdio_init(bis, &info);
686 
687 	return tsec_eth_init(bis, tsec_info, ARRAY_SIZE(tsec_info));
688 }
689