xref: /openbmc/u-boot/drivers/net/designware.c (revision 00a457b2)
1 /*
2  * (C) Copyright 2010
3  * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 /*
9  * Designware ethernet IP driver for U-Boot
10  */
11 
12 #include <common.h>
13 #include <dm.h>
14 #include <errno.h>
15 #include <miiphy.h>
16 #include <malloc.h>
17 #include <pci.h>
18 #include <linux/compiler.h>
19 #include <linux/err.h>
20 #include <asm/io.h>
21 #include "designware.h"
22 
23 DECLARE_GLOBAL_DATA_PTR;
24 
25 static int dw_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
26 {
27 	struct eth_mac_regs *mac_p = bus->priv;
28 	ulong start;
29 	u16 miiaddr;
30 	int timeout = CONFIG_MDIO_TIMEOUT;
31 
32 	miiaddr = ((addr << MIIADDRSHIFT) & MII_ADDRMSK) |
33 		  ((reg << MIIREGSHIFT) & MII_REGMSK);
34 
35 	writel(miiaddr | MII_CLKRANGE_150_250M | MII_BUSY, &mac_p->miiaddr);
36 
37 	start = get_timer(0);
38 	while (get_timer(start) < timeout) {
39 		if (!(readl(&mac_p->miiaddr) & MII_BUSY))
40 			return readl(&mac_p->miidata);
41 		udelay(10);
42 	};
43 
44 	return -ETIMEDOUT;
45 }
46 
47 static int dw_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
48 			u16 val)
49 {
50 	struct eth_mac_regs *mac_p = bus->priv;
51 	ulong start;
52 	u16 miiaddr;
53 	int ret = -ETIMEDOUT, timeout = CONFIG_MDIO_TIMEOUT;
54 
55 	writel(val, &mac_p->miidata);
56 	miiaddr = ((addr << MIIADDRSHIFT) & MII_ADDRMSK) |
57 		  ((reg << MIIREGSHIFT) & MII_REGMSK) | MII_WRITE;
58 
59 	writel(miiaddr | MII_CLKRANGE_150_250M | MII_BUSY, &mac_p->miiaddr);
60 
61 	start = get_timer(0);
62 	while (get_timer(start) < timeout) {
63 		if (!(readl(&mac_p->miiaddr) & MII_BUSY)) {
64 			ret = 0;
65 			break;
66 		}
67 		udelay(10);
68 	};
69 
70 	return ret;
71 }
72 
73 static int dw_mdio_init(const char *name, struct eth_mac_regs *mac_regs_p)
74 {
75 	struct mii_dev *bus = mdio_alloc();
76 
77 	if (!bus) {
78 		printf("Failed to allocate MDIO bus\n");
79 		return -ENOMEM;
80 	}
81 
82 	bus->read = dw_mdio_read;
83 	bus->write = dw_mdio_write;
84 	snprintf(bus->name, sizeof(bus->name), name);
85 
86 	bus->priv = (void *)mac_regs_p;
87 
88 	return mdio_register(bus);
89 }
90 
91 static void tx_descs_init(struct dw_eth_dev *priv)
92 {
93 	struct eth_dma_regs *dma_p = priv->dma_regs_p;
94 	struct dmamacdescr *desc_table_p = &priv->tx_mac_descrtable[0];
95 	char *txbuffs = &priv->txbuffs[0];
96 	struct dmamacdescr *desc_p;
97 	u32 idx;
98 
99 	for (idx = 0; idx < CONFIG_TX_DESCR_NUM; idx++) {
100 		desc_p = &desc_table_p[idx];
101 		desc_p->dmamac_addr = &txbuffs[idx * CONFIG_ETH_BUFSIZE];
102 		desc_p->dmamac_next = &desc_table_p[idx + 1];
103 
104 #if defined(CONFIG_DW_ALTDESCRIPTOR)
105 		desc_p->txrx_status &= ~(DESC_TXSTS_TXINT | DESC_TXSTS_TXLAST |
106 				DESC_TXSTS_TXFIRST | DESC_TXSTS_TXCRCDIS |
107 				DESC_TXSTS_TXCHECKINSCTRL |
108 				DESC_TXSTS_TXRINGEND | DESC_TXSTS_TXPADDIS);
109 
110 		desc_p->txrx_status |= DESC_TXSTS_TXCHAIN;
111 		desc_p->dmamac_cntl = 0;
112 		desc_p->txrx_status &= ~(DESC_TXSTS_MSK | DESC_TXSTS_OWNBYDMA);
113 #else
114 		desc_p->dmamac_cntl = DESC_TXCTRL_TXCHAIN;
115 		desc_p->txrx_status = 0;
116 #endif
117 	}
118 
119 	/* Correcting the last pointer of the chain */
120 	desc_p->dmamac_next = &desc_table_p[0];
121 
122 	/* Flush all Tx buffer descriptors at once */
123 	flush_dcache_range((unsigned int)priv->tx_mac_descrtable,
124 			   (unsigned int)priv->tx_mac_descrtable +
125 			   sizeof(priv->tx_mac_descrtable));
126 
127 	writel((ulong)&desc_table_p[0], &dma_p->txdesclistaddr);
128 	priv->tx_currdescnum = 0;
129 }
130 
131 static void rx_descs_init(struct dw_eth_dev *priv)
132 {
133 	struct eth_dma_regs *dma_p = priv->dma_regs_p;
134 	struct dmamacdescr *desc_table_p = &priv->rx_mac_descrtable[0];
135 	char *rxbuffs = &priv->rxbuffs[0];
136 	struct dmamacdescr *desc_p;
137 	u32 idx;
138 
139 	/* Before passing buffers to GMAC we need to make sure zeros
140 	 * written there right after "priv" structure allocation were
141 	 * flushed into RAM.
142 	 * Otherwise there's a chance to get some of them flushed in RAM when
143 	 * GMAC is already pushing data to RAM via DMA. This way incoming from
144 	 * GMAC data will be corrupted. */
145 	flush_dcache_range((unsigned int)rxbuffs, (unsigned int)rxbuffs +
146 			   RX_TOTAL_BUFSIZE);
147 
148 	for (idx = 0; idx < CONFIG_RX_DESCR_NUM; idx++) {
149 		desc_p = &desc_table_p[idx];
150 		desc_p->dmamac_addr = &rxbuffs[idx * CONFIG_ETH_BUFSIZE];
151 		desc_p->dmamac_next = &desc_table_p[idx + 1];
152 
153 		desc_p->dmamac_cntl =
154 			(MAC_MAX_FRAME_SZ & DESC_RXCTRL_SIZE1MASK) |
155 				      DESC_RXCTRL_RXCHAIN;
156 
157 		desc_p->txrx_status = DESC_RXSTS_OWNBYDMA;
158 	}
159 
160 	/* Correcting the last pointer of the chain */
161 	desc_p->dmamac_next = &desc_table_p[0];
162 
163 	/* Flush all Rx buffer descriptors at once */
164 	flush_dcache_range((unsigned int)priv->rx_mac_descrtable,
165 			   (unsigned int)priv->rx_mac_descrtable +
166 			   sizeof(priv->rx_mac_descrtable));
167 
168 	writel((ulong)&desc_table_p[0], &dma_p->rxdesclistaddr);
169 	priv->rx_currdescnum = 0;
170 }
171 
172 static int _dw_write_hwaddr(struct dw_eth_dev *priv, u8 *mac_id)
173 {
174 	struct eth_mac_regs *mac_p = priv->mac_regs_p;
175 	u32 macid_lo, macid_hi;
176 
177 	macid_lo = mac_id[0] + (mac_id[1] << 8) + (mac_id[2] << 16) +
178 		   (mac_id[3] << 24);
179 	macid_hi = mac_id[4] + (mac_id[5] << 8);
180 
181 	writel(macid_hi, &mac_p->macaddr0hi);
182 	writel(macid_lo, &mac_p->macaddr0lo);
183 
184 	return 0;
185 }
186 
187 static void dw_adjust_link(struct eth_mac_regs *mac_p,
188 			   struct phy_device *phydev)
189 {
190 	u32 conf = readl(&mac_p->conf) | FRAMEBURSTENABLE | DISABLERXOWN;
191 
192 	if (!phydev->link) {
193 		printf("%s: No link.\n", phydev->dev->name);
194 		return;
195 	}
196 
197 	if (phydev->speed != 1000)
198 		conf |= MII_PORTSELECT;
199 
200 	if (phydev->speed == 100)
201 		conf |= FES_100;
202 
203 	if (phydev->duplex)
204 		conf |= FULLDPLXMODE;
205 
206 	writel(conf, &mac_p->conf);
207 
208 	printf("Speed: %d, %s duplex%s\n", phydev->speed,
209 	       (phydev->duplex) ? "full" : "half",
210 	       (phydev->port == PORT_FIBRE) ? ", fiber mode" : "");
211 }
212 
213 static void _dw_eth_halt(struct dw_eth_dev *priv)
214 {
215 	struct eth_mac_regs *mac_p = priv->mac_regs_p;
216 	struct eth_dma_regs *dma_p = priv->dma_regs_p;
217 
218 	writel(readl(&mac_p->conf) & ~(RXENABLE | TXENABLE), &mac_p->conf);
219 	writel(readl(&dma_p->opmode) & ~(RXSTART | TXSTART), &dma_p->opmode);
220 
221 	phy_shutdown(priv->phydev);
222 }
223 
224 static int _dw_eth_init(struct dw_eth_dev *priv, u8 *enetaddr)
225 {
226 	struct eth_mac_regs *mac_p = priv->mac_regs_p;
227 	struct eth_dma_regs *dma_p = priv->dma_regs_p;
228 	unsigned int start;
229 	int ret;
230 
231 	writel(readl(&dma_p->busmode) | DMAMAC_SRST, &dma_p->busmode);
232 
233 	start = get_timer(0);
234 	while (readl(&dma_p->busmode) & DMAMAC_SRST) {
235 		if (get_timer(start) >= CONFIG_MACRESET_TIMEOUT) {
236 			printf("DMA reset timeout\n");
237 			return -ETIMEDOUT;
238 		}
239 
240 		mdelay(100);
241 	};
242 
243 	/*
244 	 * Soft reset above clears HW address registers.
245 	 * So we have to set it here once again.
246 	 */
247 	_dw_write_hwaddr(priv, enetaddr);
248 
249 	rx_descs_init(priv);
250 	tx_descs_init(priv);
251 
252 	writel(FIXEDBURST | PRIORXTX_41 | DMA_PBL, &dma_p->busmode);
253 
254 #ifndef CONFIG_DW_MAC_FORCE_THRESHOLD_MODE
255 	writel(readl(&dma_p->opmode) | FLUSHTXFIFO | STOREFORWARD,
256 	       &dma_p->opmode);
257 #else
258 	writel(readl(&dma_p->opmode) | FLUSHTXFIFO,
259 	       &dma_p->opmode);
260 #endif
261 
262 	writel(readl(&dma_p->opmode) | RXSTART | TXSTART, &dma_p->opmode);
263 
264 #ifdef CONFIG_DW_AXI_BURST_LEN
265 	writel((CONFIG_DW_AXI_BURST_LEN & 0x1FF >> 1), &dma_p->axibus);
266 #endif
267 
268 	/* Start up the PHY */
269 	ret = phy_startup(priv->phydev);
270 	if (ret) {
271 		printf("Could not initialize PHY %s\n",
272 		       priv->phydev->dev->name);
273 		return ret;
274 	}
275 
276 	dw_adjust_link(mac_p, priv->phydev);
277 
278 	if (!priv->phydev->link)
279 		return -EIO;
280 
281 	writel(readl(&mac_p->conf) | RXENABLE | TXENABLE, &mac_p->conf);
282 
283 	return 0;
284 }
285 
286 static int _dw_eth_send(struct dw_eth_dev *priv, void *packet, int length)
287 {
288 	struct eth_dma_regs *dma_p = priv->dma_regs_p;
289 	u32 desc_num = priv->tx_currdescnum;
290 	struct dmamacdescr *desc_p = &priv->tx_mac_descrtable[desc_num];
291 	uint32_t desc_start = (uint32_t)desc_p;
292 	uint32_t desc_end = desc_start +
293 		roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN);
294 	uint32_t data_start = (uint32_t)desc_p->dmamac_addr;
295 	uint32_t data_end = data_start +
296 		roundup(length, ARCH_DMA_MINALIGN);
297 	/*
298 	 * Strictly we only need to invalidate the "txrx_status" field
299 	 * for the following check, but on some platforms we cannot
300 	 * invalidate only 4 bytes, so we flush the entire descriptor,
301 	 * which is 16 bytes in total. This is safe because the
302 	 * individual descriptors in the array are each aligned to
303 	 * ARCH_DMA_MINALIGN and padded appropriately.
304 	 */
305 	invalidate_dcache_range(desc_start, desc_end);
306 
307 	/* Check if the descriptor is owned by CPU */
308 	if (desc_p->txrx_status & DESC_TXSTS_OWNBYDMA) {
309 		printf("CPU not owner of tx frame\n");
310 		return -EPERM;
311 	}
312 
313 	memcpy(desc_p->dmamac_addr, packet, length);
314 
315 	/* Flush data to be sent */
316 	flush_dcache_range(data_start, data_end);
317 
318 #if defined(CONFIG_DW_ALTDESCRIPTOR)
319 	desc_p->txrx_status |= DESC_TXSTS_TXFIRST | DESC_TXSTS_TXLAST;
320 	desc_p->dmamac_cntl |= (length << DESC_TXCTRL_SIZE1SHFT) &
321 			       DESC_TXCTRL_SIZE1MASK;
322 
323 	desc_p->txrx_status &= ~(DESC_TXSTS_MSK);
324 	desc_p->txrx_status |= DESC_TXSTS_OWNBYDMA;
325 #else
326 	desc_p->dmamac_cntl |= ((length << DESC_TXCTRL_SIZE1SHFT) &
327 			       DESC_TXCTRL_SIZE1MASK) | DESC_TXCTRL_TXLAST |
328 			       DESC_TXCTRL_TXFIRST;
329 
330 	desc_p->txrx_status = DESC_TXSTS_OWNBYDMA;
331 #endif
332 
333 	/* Flush modified buffer descriptor */
334 	flush_dcache_range(desc_start, desc_end);
335 
336 	/* Test the wrap-around condition. */
337 	if (++desc_num >= CONFIG_TX_DESCR_NUM)
338 		desc_num = 0;
339 
340 	priv->tx_currdescnum = desc_num;
341 
342 	/* Start the transmission */
343 	writel(POLL_DATA, &dma_p->txpolldemand);
344 
345 	return 0;
346 }
347 
348 static int _dw_eth_recv(struct dw_eth_dev *priv, uchar **packetp)
349 {
350 	u32 status, desc_num = priv->rx_currdescnum;
351 	struct dmamacdescr *desc_p = &priv->rx_mac_descrtable[desc_num];
352 	int length = -EAGAIN;
353 	uint32_t desc_start = (uint32_t)desc_p;
354 	uint32_t desc_end = desc_start +
355 		roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN);
356 	uint32_t data_start = (uint32_t)desc_p->dmamac_addr;
357 	uint32_t data_end;
358 
359 	/* Invalidate entire buffer descriptor */
360 	invalidate_dcache_range(desc_start, desc_end);
361 
362 	status = desc_p->txrx_status;
363 
364 	/* Check  if the owner is the CPU */
365 	if (!(status & DESC_RXSTS_OWNBYDMA)) {
366 
367 		length = (status & DESC_RXSTS_FRMLENMSK) >>
368 			 DESC_RXSTS_FRMLENSHFT;
369 
370 		/* Invalidate received data */
371 		data_end = data_start + roundup(length, ARCH_DMA_MINALIGN);
372 		invalidate_dcache_range(data_start, data_end);
373 		*packetp = desc_p->dmamac_addr;
374 	}
375 
376 	return length;
377 }
378 
379 static int _dw_free_pkt(struct dw_eth_dev *priv)
380 {
381 	u32 desc_num = priv->rx_currdescnum;
382 	struct dmamacdescr *desc_p = &priv->rx_mac_descrtable[desc_num];
383 	uint32_t desc_start = (uint32_t)desc_p;
384 	uint32_t desc_end = desc_start +
385 		roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN);
386 
387 	/*
388 	 * Make the current descriptor valid again and go to
389 	 * the next one
390 	 */
391 	desc_p->txrx_status |= DESC_RXSTS_OWNBYDMA;
392 
393 	/* Flush only status field - others weren't changed */
394 	flush_dcache_range(desc_start, desc_end);
395 
396 	/* Test the wrap-around condition. */
397 	if (++desc_num >= CONFIG_RX_DESCR_NUM)
398 		desc_num = 0;
399 	priv->rx_currdescnum = desc_num;
400 
401 	return 0;
402 }
403 
404 static int dw_phy_init(struct dw_eth_dev *priv, void *dev)
405 {
406 	struct phy_device *phydev;
407 	int mask = 0xffffffff;
408 
409 #ifdef CONFIG_PHY_ADDR
410 	mask = 1 << CONFIG_PHY_ADDR;
411 #endif
412 
413 	phydev = phy_find_by_mask(priv->bus, mask, priv->interface);
414 	if (!phydev)
415 		return -ENODEV;
416 
417 	phy_connect_dev(phydev, dev);
418 
419 	phydev->supported &= PHY_GBIT_FEATURES;
420 	phydev->advertising = phydev->supported;
421 
422 	priv->phydev = phydev;
423 	phy_config(phydev);
424 
425 	return 0;
426 }
427 
428 #ifndef CONFIG_DM_ETH
429 static int dw_eth_init(struct eth_device *dev, bd_t *bis)
430 {
431 	return _dw_eth_init(dev->priv, dev->enetaddr);
432 }
433 
434 static int dw_eth_send(struct eth_device *dev, void *packet, int length)
435 {
436 	return _dw_eth_send(dev->priv, packet, length);
437 }
438 
439 static int dw_eth_recv(struct eth_device *dev)
440 {
441 	uchar *packet;
442 	int length;
443 
444 	length = _dw_eth_recv(dev->priv, &packet);
445 	if (length == -EAGAIN)
446 		return 0;
447 	net_process_received_packet(packet, length);
448 
449 	_dw_free_pkt(dev->priv);
450 
451 	return 0;
452 }
453 
454 static void dw_eth_halt(struct eth_device *dev)
455 {
456 	return _dw_eth_halt(dev->priv);
457 }
458 
459 static int dw_write_hwaddr(struct eth_device *dev)
460 {
461 	return _dw_write_hwaddr(dev->priv, dev->enetaddr);
462 }
463 
464 int designware_initialize(ulong base_addr, u32 interface)
465 {
466 	struct eth_device *dev;
467 	struct dw_eth_dev *priv;
468 
469 	dev = (struct eth_device *) malloc(sizeof(struct eth_device));
470 	if (!dev)
471 		return -ENOMEM;
472 
473 	/*
474 	 * Since the priv structure contains the descriptors which need a strict
475 	 * buswidth alignment, memalign is used to allocate memory
476 	 */
477 	priv = (struct dw_eth_dev *) memalign(ARCH_DMA_MINALIGN,
478 					      sizeof(struct dw_eth_dev));
479 	if (!priv) {
480 		free(dev);
481 		return -ENOMEM;
482 	}
483 
484 	memset(dev, 0, sizeof(struct eth_device));
485 	memset(priv, 0, sizeof(struct dw_eth_dev));
486 
487 	sprintf(dev->name, "dwmac.%lx", base_addr);
488 	dev->iobase = (int)base_addr;
489 	dev->priv = priv;
490 
491 	priv->dev = dev;
492 	priv->mac_regs_p = (struct eth_mac_regs *)base_addr;
493 	priv->dma_regs_p = (struct eth_dma_regs *)(base_addr +
494 			DW_DMA_BASE_OFFSET);
495 
496 	dev->init = dw_eth_init;
497 	dev->send = dw_eth_send;
498 	dev->recv = dw_eth_recv;
499 	dev->halt = dw_eth_halt;
500 	dev->write_hwaddr = dw_write_hwaddr;
501 
502 	eth_register(dev);
503 
504 	priv->interface = interface;
505 
506 	dw_mdio_init(dev->name, priv->mac_regs_p);
507 	priv->bus = miiphy_get_dev_by_name(dev->name);
508 
509 	return dw_phy_init(priv, dev);
510 }
511 #endif
512 
513 #ifdef CONFIG_DM_ETH
514 static int designware_eth_start(struct udevice *dev)
515 {
516 	struct eth_pdata *pdata = dev_get_platdata(dev);
517 
518 	return _dw_eth_init(dev->priv, pdata->enetaddr);
519 }
520 
521 static int designware_eth_send(struct udevice *dev, void *packet, int length)
522 {
523 	struct dw_eth_dev *priv = dev_get_priv(dev);
524 
525 	return _dw_eth_send(priv, packet, length);
526 }
527 
528 static int designware_eth_recv(struct udevice *dev, int flags, uchar **packetp)
529 {
530 	struct dw_eth_dev *priv = dev_get_priv(dev);
531 
532 	return _dw_eth_recv(priv, packetp);
533 }
534 
535 static int designware_eth_free_pkt(struct udevice *dev, uchar *packet,
536 				   int length)
537 {
538 	struct dw_eth_dev *priv = dev_get_priv(dev);
539 
540 	return _dw_free_pkt(priv);
541 }
542 
543 static void designware_eth_stop(struct udevice *dev)
544 {
545 	struct dw_eth_dev *priv = dev_get_priv(dev);
546 
547 	return _dw_eth_halt(priv);
548 }
549 
550 static int designware_eth_write_hwaddr(struct udevice *dev)
551 {
552 	struct eth_pdata *pdata = dev_get_platdata(dev);
553 	struct dw_eth_dev *priv = dev_get_priv(dev);
554 
555 	return _dw_write_hwaddr(priv, pdata->enetaddr);
556 }
557 
558 static int designware_eth_bind(struct udevice *dev)
559 {
560 #ifdef CONFIG_DM_PCI
561 	static int num_cards;
562 	char name[20];
563 
564 	/* Create a unique device name for PCI type devices */
565 	if (device_is_on_pci_bus(dev)) {
566 		sprintf(name, "eth_designware#%u", num_cards++);
567 		device_set_name(dev, name);
568 	}
569 #endif
570 
571 	return 0;
572 }
573 
574 static int designware_eth_probe(struct udevice *dev)
575 {
576 	struct eth_pdata *pdata = dev_get_platdata(dev);
577 	struct dw_eth_dev *priv = dev_get_priv(dev);
578 	u32 iobase = pdata->iobase;
579 	int ret;
580 
581 #ifdef CONFIG_DM_PCI
582 	/*
583 	 * If we are on PCI bus, either directly attached to a PCI root port,
584 	 * or via a PCI bridge, fill in platdata before we probe the hardware.
585 	 */
586 	if (device_is_on_pci_bus(dev)) {
587 		pci_dev_t bdf = dm_pci_get_bdf(dev);
588 
589 		dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0, &iobase);
590 		iobase &= PCI_BASE_ADDRESS_MEM_MASK;
591 		iobase = pci_mem_to_phys(bdf, iobase);
592 
593 		pdata->iobase = iobase;
594 		pdata->phy_interface = PHY_INTERFACE_MODE_RMII;
595 	}
596 #endif
597 
598 	debug("%s, iobase=%x, priv=%p\n", __func__, iobase, priv);
599 	priv->mac_regs_p = (struct eth_mac_regs *)iobase;
600 	priv->dma_regs_p = (struct eth_dma_regs *)(iobase + DW_DMA_BASE_OFFSET);
601 	priv->interface = pdata->phy_interface;
602 
603 	dw_mdio_init(dev->name, priv->mac_regs_p);
604 	priv->bus = miiphy_get_dev_by_name(dev->name);
605 
606 	ret = dw_phy_init(priv, dev);
607 	debug("%s, ret=%d\n", __func__, ret);
608 
609 	return ret;
610 }
611 
612 static int designware_eth_remove(struct udevice *dev)
613 {
614 	struct dw_eth_dev *priv = dev_get_priv(dev);
615 
616 	free(priv->phydev);
617 	mdio_unregister(priv->bus);
618 	mdio_free(priv->bus);
619 
620 	return 0;
621 }
622 
623 static const struct eth_ops designware_eth_ops = {
624 	.start			= designware_eth_start,
625 	.send			= designware_eth_send,
626 	.recv			= designware_eth_recv,
627 	.free_pkt		= designware_eth_free_pkt,
628 	.stop			= designware_eth_stop,
629 	.write_hwaddr		= designware_eth_write_hwaddr,
630 };
631 
632 static int designware_eth_ofdata_to_platdata(struct udevice *dev)
633 {
634 	struct eth_pdata *pdata = dev_get_platdata(dev);
635 	const char *phy_mode;
636 
637 	pdata->iobase = dev_get_addr(dev);
638 	pdata->phy_interface = -1;
639 	phy_mode = fdt_getprop(gd->fdt_blob, dev->of_offset, "phy-mode", NULL);
640 	if (phy_mode)
641 		pdata->phy_interface = phy_get_interface_by_name(phy_mode);
642 	if (pdata->phy_interface == -1) {
643 		debug("%s: Invalid PHY interface '%s'\n", __func__, phy_mode);
644 		return -EINVAL;
645 	}
646 
647 	return 0;
648 }
649 
650 static const struct udevice_id designware_eth_ids[] = {
651 	{ .compatible = "allwinner,sun7i-a20-gmac" },
652 	{ .compatible = "altr,socfpga-stmmac" },
653 	{ }
654 };
655 
656 U_BOOT_DRIVER(eth_designware) = {
657 	.name	= "eth_designware",
658 	.id	= UCLASS_ETH,
659 	.of_match = designware_eth_ids,
660 	.ofdata_to_platdata = designware_eth_ofdata_to_platdata,
661 	.bind	= designware_eth_bind,
662 	.probe	= designware_eth_probe,
663 	.remove	= designware_eth_remove,
664 	.ops	= &designware_eth_ops,
665 	.priv_auto_alloc_size = sizeof(struct dw_eth_dev),
666 	.platdata_auto_alloc_size = sizeof(struct eth_pdata),
667 	.flags = DM_FLAG_ALLOC_PRIV_DMA,
668 };
669 
670 static struct pci_device_id supported[] = {
671 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_QRK_EMAC) },
672 	{ }
673 };
674 
675 U_BOOT_PCI_DEVICE(eth_designware, supported);
676 #endif
677