1 // SPDX-License-Identifier: GPL-2.0+
4 * Vipin Kumar, STMicroelectronics, vipin.kumar@st.com.
8 * Designware ethernet IP driver for U-Boot
22 #include <asm/cache.h>
23 #include <dm/device_compat.h>
24 #include <dm/device-internal.h>
25 #include <dm/devres.h>
27 #include <linux/compiler.h>
28 #include <linux/delay.h>
29 #include <linux/err.h>
30 #include <linux/kernel.h>
32 #include <power/regulator.h>
33 #include "designware.h"
35 static int dw_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
37 struct dw_eth_dev *priv = dev_get_priv((struct udevice *)bus->priv);
38 struct eth_mac_regs *mac_p = priv->mac_regs_p;
41 int timeout = CFG_MDIO_TIMEOUT;
43 miiaddr = ((addr << MIIADDRSHIFT) & MII_ADDRMSK) |
44 ((reg << MIIREGSHIFT) & MII_REGMSK);
46 writel(miiaddr | MII_CLKRANGE_150_250M | MII_BUSY, &mac_p->miiaddr);
49 while (get_timer(start) < timeout) {
50 if (!(readl(&mac_p->miiaddr) & MII_BUSY))
51 return readl(&mac_p->miidata);
58 static int dw_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
61 struct dw_eth_dev *priv = dev_get_priv((struct udevice *)bus->priv);
62 struct eth_mac_regs *mac_p = priv->mac_regs_p;
65 int ret = -ETIMEDOUT, timeout = CFG_MDIO_TIMEOUT;
67 writel(val, &mac_p->miidata);
68 miiaddr = ((addr << MIIADDRSHIFT) & MII_ADDRMSK) |
69 ((reg << MIIREGSHIFT) & MII_REGMSK) | MII_WRITE;
71 writel(miiaddr | MII_CLKRANGE_150_250M | MII_BUSY, &mac_p->miiaddr);
74 while (get_timer(start) < timeout) {
75 if (!(readl(&mac_p->miiaddr) & MII_BUSY)) {
85 #if CONFIG_IS_ENABLED(DM_GPIO)
86 static int __dw_mdio_reset(struct udevice *dev)
88 struct dw_eth_dev *priv = dev_get_priv(dev);
89 struct dw_eth_pdata *pdata = dev_get_plat(dev);
92 if (!dm_gpio_is_valid(&priv->reset_gpio))
96 ret = dm_gpio_set_value(&priv->reset_gpio, 0);
100 udelay(pdata->reset_delays[0]);
102 ret = dm_gpio_set_value(&priv->reset_gpio, 1);
106 udelay(pdata->reset_delays[1]);
108 ret = dm_gpio_set_value(&priv->reset_gpio, 0);
112 udelay(pdata->reset_delays[2]);
117 static int dw_mdio_reset(struct mii_dev *bus)
119 struct udevice *dev = bus->priv;
121 return __dw_mdio_reset(dev);
125 #if IS_ENABLED(CONFIG_DM_MDIO)
126 int designware_eth_mdio_read(struct udevice *mdio_dev, int addr, int devad, int reg)
128 struct mdio_perdev_priv *pdata = dev_get_uclass_priv(mdio_dev);
130 return dw_mdio_read(pdata->mii_bus, addr, devad, reg);
133 int designware_eth_mdio_write(struct udevice *mdio_dev, int addr, int devad, int reg, u16 val)
135 struct mdio_perdev_priv *pdata = dev_get_uclass_priv(mdio_dev);
137 return dw_mdio_write(pdata->mii_bus, addr, devad, reg, val);
140 #if CONFIG_IS_ENABLED(DM_GPIO)
141 int designware_eth_mdio_reset(struct udevice *mdio_dev)
143 struct mdio_perdev_priv *mdio_pdata = dev_get_uclass_priv(mdio_dev);
144 struct udevice *dev = mdio_pdata->mii_bus->priv;
146 return __dw_mdio_reset(dev->parent);
150 static const struct mdio_ops designware_eth_mdio_ops = {
151 .read = designware_eth_mdio_read,
152 .write = designware_eth_mdio_write,
153 #if CONFIG_IS_ENABLED(DM_GPIO)
154 .reset = designware_eth_mdio_reset,
158 static int designware_eth_mdio_probe(struct udevice *dev)
160 /* Use the priv data of parent */
161 dev_set_priv(dev, dev_get_priv(dev->parent));
166 U_BOOT_DRIVER(designware_eth_mdio) = {
167 .name = "eth_designware_mdio",
169 .probe = designware_eth_mdio_probe,
170 .ops = &designware_eth_mdio_ops,
171 .plat_auto = sizeof(struct mdio_perdev_priv),
175 static int dw_mdio_init(const char *name, void *priv)
177 struct mii_dev *bus = mdio_alloc();
180 printf("Failed to allocate MDIO bus\n");
184 bus->read = dw_mdio_read;
185 bus->write = dw_mdio_write;
186 snprintf(bus->name, sizeof(bus->name), "%s", name);
187 #if CONFIG_IS_ENABLED(DM_GPIO)
188 bus->reset = dw_mdio_reset;
193 return mdio_register(bus);
196 #if IS_ENABLED(CONFIG_DM_MDIO)
197 static int dw_dm_mdio_init(const char *name, void *priv)
199 struct udevice *dev = priv;
203 ofnode_for_each_subnode(node, dev_ofnode(dev)) {
204 const char *subnode_name = ofnode_get_name(node);
205 struct udevice *mdiodev;
207 if (strcmp(subnode_name, "mdio"))
210 ret = device_bind_driver_to_node(dev, "eth_designware_mdio",
211 subnode_name, node, &mdiodev);
213 debug("%s: not able to bind mdio device node\n", __func__);
218 printf("%s: mdio node is missing, registering legacy mdio bus", __func__);
220 return dw_mdio_init(name, priv);
224 static void tx_descs_init(struct dw_eth_dev *priv)
226 struct eth_dma_regs *dma_p = priv->dma_regs_p;
227 struct dmamacdescr *desc_table_p = &priv->tx_mac_descrtable[0];
228 char *txbuffs = &priv->txbuffs[0];
229 struct dmamacdescr *desc_p;
232 for (idx = 0; idx < CFG_TX_DESCR_NUM; idx++) {
233 desc_p = &desc_table_p[idx];
234 desc_p->dmamac_addr = (ulong)&txbuffs[idx * CFG_ETH_BUFSIZE];
235 desc_p->dmamac_next = (ulong)&desc_table_p[idx + 1];
237 #if defined(CONFIG_DW_ALTDESCRIPTOR)
238 desc_p->txrx_status &= ~(DESC_TXSTS_TXINT | DESC_TXSTS_TXLAST |
239 DESC_TXSTS_TXFIRST | DESC_TXSTS_TXCRCDIS |
240 DESC_TXSTS_TXCHECKINSCTRL |
241 DESC_TXSTS_TXRINGEND | DESC_TXSTS_TXPADDIS);
243 desc_p->txrx_status |= DESC_TXSTS_TXCHAIN;
244 desc_p->dmamac_cntl = 0;
245 desc_p->txrx_status &= ~(DESC_TXSTS_MSK | DESC_TXSTS_OWNBYDMA);
247 desc_p->dmamac_cntl = DESC_TXCTRL_TXCHAIN;
248 desc_p->txrx_status = 0;
252 /* Correcting the last pointer of the chain */
253 desc_p->dmamac_next = (ulong)&desc_table_p[0];
255 /* Flush all Tx buffer descriptors at once */
256 flush_dcache_range((ulong)priv->tx_mac_descrtable,
257 (ulong)priv->tx_mac_descrtable +
258 sizeof(priv->tx_mac_descrtable));
260 writel((ulong)&desc_table_p[0], &dma_p->txdesclistaddr);
261 priv->tx_currdescnum = 0;
264 static void rx_descs_init(struct dw_eth_dev *priv)
266 struct eth_dma_regs *dma_p = priv->dma_regs_p;
267 struct dmamacdescr *desc_table_p = &priv->rx_mac_descrtable[0];
268 char *rxbuffs = &priv->rxbuffs[0];
269 struct dmamacdescr *desc_p;
272 /* Before passing buffers to GMAC we need to make sure zeros
273 * written there right after "priv" structure allocation were
275 * Otherwise there's a chance to get some of them flushed in RAM when
276 * GMAC is already pushing data to RAM via DMA. This way incoming from
277 * GMAC data will be corrupted. */
278 flush_dcache_range((ulong)rxbuffs, (ulong)rxbuffs + RX_TOTAL_BUFSIZE);
280 for (idx = 0; idx < CFG_RX_DESCR_NUM; idx++) {
281 desc_p = &desc_table_p[idx];
282 desc_p->dmamac_addr = (ulong)&rxbuffs[idx * CFG_ETH_BUFSIZE];
283 desc_p->dmamac_next = (ulong)&desc_table_p[idx + 1];
285 desc_p->dmamac_cntl =
286 (MAC_MAX_FRAME_SZ & DESC_RXCTRL_SIZE1MASK) |
289 desc_p->txrx_status = DESC_RXSTS_OWNBYDMA;
292 /* Correcting the last pointer of the chain */
293 desc_p->dmamac_next = (ulong)&desc_table_p[0];
295 /* Flush all Rx buffer descriptors at once */
296 flush_dcache_range((ulong)priv->rx_mac_descrtable,
297 (ulong)priv->rx_mac_descrtable +
298 sizeof(priv->rx_mac_descrtable));
300 writel((ulong)&desc_table_p[0], &dma_p->rxdesclistaddr);
301 priv->rx_currdescnum = 0;
304 static int _dw_write_hwaddr(struct dw_eth_dev *priv, u8 *mac_id)
306 struct eth_mac_regs *mac_p = priv->mac_regs_p;
307 u32 macid_lo, macid_hi;
309 macid_lo = mac_id[0] + (mac_id[1] << 8) + (mac_id[2] << 16) +
311 macid_hi = mac_id[4] + (mac_id[5] << 8);
313 writel(macid_hi, &mac_p->macaddr0hi);
314 writel(macid_lo, &mac_p->macaddr0lo);
319 static int dw_adjust_link(struct dw_eth_dev *priv, struct eth_mac_regs *mac_p,
320 struct phy_device *phydev)
322 u32 conf = readl(&mac_p->conf) | FRAMEBURSTENABLE | DISABLERXOWN;
325 printf("%s: No link.\n", phydev->dev->name);
329 if (phydev->speed != 1000)
330 conf |= MII_PORTSELECT;
332 conf &= ~MII_PORTSELECT;
334 if (phydev->speed == 100)
338 conf |= FULLDPLXMODE;
340 writel(conf, &mac_p->conf);
342 printf("Speed: %d, %s duplex%s\n", phydev->speed,
343 (phydev->duplex) ? "full" : "half",
344 (phydev->port == PORT_FIBRE) ? ", fiber mode" : "");
349 static void _dw_eth_halt(struct dw_eth_dev *priv)
351 struct eth_mac_regs *mac_p = priv->mac_regs_p;
352 struct eth_dma_regs *dma_p = priv->dma_regs_p;
354 writel(readl(&mac_p->conf) & ~(RXENABLE | TXENABLE), &mac_p->conf);
355 writel(readl(&dma_p->opmode) & ~(RXSTART | TXSTART), &dma_p->opmode);
357 phy_shutdown(priv->phydev);
360 int designware_eth_init(struct dw_eth_dev *priv, u8 *enetaddr)
362 struct eth_mac_regs *mac_p = priv->mac_regs_p;
363 struct eth_dma_regs *dma_p = priv->dma_regs_p;
367 writel(readl(&dma_p->busmode) | DMAMAC_SRST, &dma_p->busmode);
370 * When a MII PHY is used, we must set the PS bit for the DMA
373 if (priv->phydev->interface == PHY_INTERFACE_MODE_MII)
374 writel(readl(&mac_p->conf) | MII_PORTSELECT, &mac_p->conf);
376 writel(readl(&mac_p->conf) & ~MII_PORTSELECT, &mac_p->conf);
378 start = get_timer(0);
379 while (readl(&dma_p->busmode) & DMAMAC_SRST) {
380 if (get_timer(start) >= CFG_MACRESET_TIMEOUT) {
381 printf("DMA reset timeout\n");
389 * Soft reset above clears HW address registers.
390 * So we have to set it here once again.
392 _dw_write_hwaddr(priv, enetaddr);
397 writel(FIXEDBURST | PRIORXTX_41 | DMA_PBL, &dma_p->busmode);
399 #ifndef CONFIG_DW_MAC_FORCE_THRESHOLD_MODE
400 writel(readl(&dma_p->opmode) | FLUSHTXFIFO | STOREFORWARD,
403 writel(readl(&dma_p->opmode) | FLUSHTXFIFO,
407 writel(readl(&dma_p->opmode) | RXSTART | TXSTART, &dma_p->opmode);
409 #ifdef CONFIG_DW_AXI_BURST_LEN
410 writel((CONFIG_DW_AXI_BURST_LEN & 0x1FF >> 1), &dma_p->axibus);
413 /* Start up the PHY */
414 ret = phy_startup(priv->phydev);
416 printf("Could not initialize PHY %s\n",
417 priv->phydev->dev->name);
421 ret = dw_adjust_link(priv, mac_p, priv->phydev);
428 int designware_eth_enable(struct dw_eth_dev *priv)
430 struct eth_mac_regs *mac_p = priv->mac_regs_p;
432 if (!priv->phydev->link)
435 writel(readl(&mac_p->conf) | RXENABLE | TXENABLE, &mac_p->conf);
442 static int _dw_eth_send(struct dw_eth_dev *priv, void *packet, int length)
444 struct eth_dma_regs *dma_p = priv->dma_regs_p;
445 u32 desc_num = priv->tx_currdescnum;
446 struct dmamacdescr *desc_p = &priv->tx_mac_descrtable[desc_num];
447 ulong desc_start = (ulong)desc_p;
448 ulong desc_end = desc_start +
449 roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN);
450 ulong data_start = desc_p->dmamac_addr;
451 ulong data_end = data_start + roundup(length, ARCH_DMA_MINALIGN);
453 * Strictly we only need to invalidate the "txrx_status" field
454 * for the following check, but on some platforms we cannot
455 * invalidate only 4 bytes, so we flush the entire descriptor,
456 * which is 16 bytes in total. This is safe because the
457 * individual descriptors in the array are each aligned to
458 * ARCH_DMA_MINALIGN and padded appropriately.
460 invalidate_dcache_range(desc_start, desc_end);
462 /* Check if the descriptor is owned by CPU */
463 if (desc_p->txrx_status & DESC_TXSTS_OWNBYDMA) {
464 printf("CPU not owner of tx frame\n");
468 memcpy((void *)data_start, packet, length);
469 if (length < ETH_ZLEN) {
470 memset(&((char *)data_start)[length], 0, ETH_ZLEN - length);
474 /* Flush data to be sent */
475 flush_dcache_range(data_start, data_end);
477 #if defined(CONFIG_DW_ALTDESCRIPTOR)
478 desc_p->txrx_status |= DESC_TXSTS_TXFIRST | DESC_TXSTS_TXLAST;
479 desc_p->dmamac_cntl = (desc_p->dmamac_cntl & ~DESC_TXCTRL_SIZE1MASK) |
480 ((length << DESC_TXCTRL_SIZE1SHFT) &
481 DESC_TXCTRL_SIZE1MASK);
483 desc_p->txrx_status &= ~(DESC_TXSTS_MSK);
484 desc_p->txrx_status |= DESC_TXSTS_OWNBYDMA;
486 desc_p->dmamac_cntl = (desc_p->dmamac_cntl & ~DESC_TXCTRL_SIZE1MASK) |
487 ((length << DESC_TXCTRL_SIZE1SHFT) &
488 DESC_TXCTRL_SIZE1MASK) | DESC_TXCTRL_TXLAST |
491 desc_p->txrx_status = DESC_TXSTS_OWNBYDMA;
494 /* Flush modified buffer descriptor */
495 flush_dcache_range(desc_start, desc_end);
497 /* Test the wrap-around condition. */
498 if (++desc_num >= CFG_TX_DESCR_NUM)
501 priv->tx_currdescnum = desc_num;
503 /* Start the transmission */
504 writel(POLL_DATA, &dma_p->txpolldemand);
509 static int _dw_eth_recv(struct dw_eth_dev *priv, uchar **packetp)
511 u32 status, desc_num = priv->rx_currdescnum;
512 struct dmamacdescr *desc_p = &priv->rx_mac_descrtable[desc_num];
513 int length = -EAGAIN;
514 ulong desc_start = (ulong)desc_p;
515 ulong desc_end = desc_start +
516 roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN);
517 ulong data_start = desc_p->dmamac_addr;
520 /* Invalidate entire buffer descriptor */
521 invalidate_dcache_range(desc_start, desc_end);
523 status = desc_p->txrx_status;
525 /* Check if the owner is the CPU */
526 if (!(status & DESC_RXSTS_OWNBYDMA)) {
528 length = (status & DESC_RXSTS_FRMLENMSK) >>
529 DESC_RXSTS_FRMLENSHFT;
531 /* Invalidate received data */
532 data_end = data_start + roundup(length, ARCH_DMA_MINALIGN);
533 invalidate_dcache_range(data_start, data_end);
534 *packetp = (uchar *)(ulong)desc_p->dmamac_addr;
540 static int _dw_free_pkt(struct dw_eth_dev *priv)
542 u32 desc_num = priv->rx_currdescnum;
543 struct dmamacdescr *desc_p = &priv->rx_mac_descrtable[desc_num];
544 ulong desc_start = (ulong)desc_p;
545 ulong desc_end = desc_start +
546 roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN);
549 * Make the current descriptor valid again and go to
552 desc_p->txrx_status |= DESC_RXSTS_OWNBYDMA;
554 /* Flush only status field - others weren't changed */
555 flush_dcache_range(desc_start, desc_end);
557 /* Test the wrap-around condition. */
558 if (++desc_num >= CFG_RX_DESCR_NUM)
560 priv->rx_currdescnum = desc_num;
565 static int dw_phy_init(struct dw_eth_dev *priv, void *dev)
567 struct phy_device *phydev;
570 #if IS_ENABLED(CONFIG_DM_MDIO)
571 phydev = dm_eth_phy_connect(dev);
577 #ifdef CONFIG_PHY_ADDR
578 phy_addr = CONFIG_PHY_ADDR;
581 phydev = phy_connect(priv->bus, phy_addr, dev, priv->interface);
586 phydev->supported &= PHY_GBIT_FEATURES;
587 if (priv->max_speed) {
588 ret = phy_set_supported(phydev, priv->max_speed);
592 phydev->advertising = phydev->supported;
594 priv->phydev = phydev;
600 static int designware_eth_start(struct udevice *dev)
602 struct eth_pdata *pdata = dev_get_plat(dev);
603 struct dw_eth_dev *priv = dev_get_priv(dev);
606 ret = designware_eth_init(priv, pdata->enetaddr);
609 ret = designware_eth_enable(priv);
616 int designware_eth_send(struct udevice *dev, void *packet, int length)
618 struct dw_eth_dev *priv = dev_get_priv(dev);
620 return _dw_eth_send(priv, packet, length);
623 int designware_eth_recv(struct udevice *dev, int flags, uchar **packetp)
625 struct dw_eth_dev *priv = dev_get_priv(dev);
627 return _dw_eth_recv(priv, packetp);
630 int designware_eth_free_pkt(struct udevice *dev, uchar *packet, int length)
632 struct dw_eth_dev *priv = dev_get_priv(dev);
634 return _dw_free_pkt(priv);
637 void designware_eth_stop(struct udevice *dev)
639 struct dw_eth_dev *priv = dev_get_priv(dev);
641 return _dw_eth_halt(priv);
644 int designware_eth_write_hwaddr(struct udevice *dev)
646 struct eth_pdata *pdata = dev_get_plat(dev);
647 struct dw_eth_dev *priv = dev_get_priv(dev);
649 return _dw_write_hwaddr(priv, pdata->enetaddr);
652 static int designware_eth_bind(struct udevice *dev)
654 if (IS_ENABLED(CONFIG_PCI)) {
655 static int num_cards;
658 /* Create a unique device name for PCI type devices */
659 if (device_is_on_pci_bus(dev)) {
660 sprintf(name, "eth_designware#%u", num_cards++);
661 device_set_name(dev, name);
668 int designware_eth_probe(struct udevice *dev)
670 struct eth_pdata *pdata = dev_get_plat(dev);
671 struct dw_eth_dev *priv = dev_get_priv(dev);
672 u32 iobase = pdata->iobase;
675 struct reset_ctl_bulk reset_bulk;
679 priv->clock_count = 0;
680 clock_nb = dev_count_phandle_with_args(dev, "clocks", "#clock-cells",
683 priv->clocks = devm_kcalloc(dev, clock_nb, sizeof(struct clk),
688 for (i = 0; i < clock_nb; i++) {
689 err = clk_get_by_index(dev, i, &priv->clocks[i]);
693 err = clk_enable(&priv->clocks[i]);
694 if (err && err != -ENOSYS && err != -ENOTSUPP) {
695 pr_err("failed to enable clock %d\n", i);
696 clk_free(&priv->clocks[i]);
701 } else if (clock_nb != -ENOENT) {
702 pr_err("failed to get clock phandle(%d)\n", clock_nb);
707 #if defined(CONFIG_DM_REGULATOR)
708 struct udevice *phy_supply;
710 ret = device_get_supply_regulator(dev, "phy-supply",
713 debug("%s: No phy supply\n", dev->name);
715 ret = regulator_set_enable(phy_supply, true);
717 puts("Error enabling phy supply\n");
723 ret = reset_get_bulk(dev, &reset_bulk);
725 dev_warn(dev, "Can't get reset: %d\n", ret);
727 reset_deassert_bulk(&reset_bulk);
730 * If we are on PCI bus, either directly attached to a PCI root port,
731 * or via a PCI bridge, fill in plat before we probe the hardware.
733 if (IS_ENABLED(CONFIG_PCI) && device_is_on_pci_bus(dev)) {
734 dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0, &iobase);
735 iobase &= PCI_BASE_ADDRESS_MEM_MASK;
736 iobase = dm_pci_mem_to_phys(dev, iobase);
738 pdata->iobase = iobase;
739 pdata->phy_interface = PHY_INTERFACE_MODE_RMII;
742 debug("%s, iobase=%x, priv=%p\n", __func__, iobase, priv);
744 priv->mac_regs_p = (struct eth_mac_regs *)ioaddr;
745 priv->dma_regs_p = (struct eth_dma_regs *)(ioaddr + DW_DMA_BASE_OFFSET);
746 priv->interface = pdata->phy_interface;
747 priv->max_speed = pdata->max_speed;
749 #if IS_ENABLED(CONFIG_DM_MDIO)
750 ret = dw_dm_mdio_init(dev->name, dev);
752 ret = dw_mdio_init(dev->name, dev);
758 priv->bus = miiphy_get_dev_by_name(dev->name);
760 ret = dw_phy_init(priv, dev);
761 debug("%s, ret=%d\n", __func__, ret);
765 /* continue here for cleanup if no PHY found */
767 mdio_unregister(priv->bus);
768 mdio_free(priv->bus);
773 ret = clk_release_all(priv->clocks, priv->clock_count);
775 pr_err("failed to disable all clocks\n");
781 static int designware_eth_remove(struct udevice *dev)
783 struct dw_eth_dev *priv = dev_get_priv(dev);
786 mdio_unregister(priv->bus);
787 mdio_free(priv->bus);
790 return clk_release_all(priv->clocks, priv->clock_count);
796 const struct eth_ops designware_eth_ops = {
797 .start = designware_eth_start,
798 .send = designware_eth_send,
799 .recv = designware_eth_recv,
800 .free_pkt = designware_eth_free_pkt,
801 .stop = designware_eth_stop,
802 .write_hwaddr = designware_eth_write_hwaddr,
805 int designware_eth_of_to_plat(struct udevice *dev)
807 struct dw_eth_pdata *dw_pdata = dev_get_plat(dev);
808 #if CONFIG_IS_ENABLED(DM_GPIO)
809 struct dw_eth_dev *priv = dev_get_priv(dev);
811 struct eth_pdata *pdata = &dw_pdata->eth_pdata;
812 #if CONFIG_IS_ENABLED(DM_GPIO)
813 int reset_flags = GPIOD_IS_OUT;
817 pdata->iobase = dev_read_addr(dev);
818 pdata->phy_interface = dev_read_phy_mode(dev);
819 if (pdata->phy_interface == PHY_INTERFACE_MODE_NA)
822 pdata->max_speed = dev_read_u32_default(dev, "max-speed", 0);
824 #if CONFIG_IS_ENABLED(DM_GPIO)
825 if (dev_read_bool(dev, "snps,reset-active-low"))
826 reset_flags |= GPIOD_ACTIVE_LOW;
828 ret = gpio_request_by_name(dev, "snps,reset-gpio", 0,
829 &priv->reset_gpio, reset_flags);
831 ret = dev_read_u32_array(dev, "snps,reset-delays-us",
832 dw_pdata->reset_delays, 3);
833 } else if (ret == -ENOENT) {
841 static const struct udevice_id designware_eth_ids[] = {
842 { .compatible = "allwinner,sun7i-a20-gmac" },
843 { .compatible = "amlogic,meson6-dwmac" },
844 { .compatible = "st,stm32-dwmac" },
845 { .compatible = "snps,arc-dwmac-3.70a" },
849 U_BOOT_DRIVER(eth_designware) = {
850 .name = "eth_designware",
852 .of_match = designware_eth_ids,
853 .of_to_plat = designware_eth_of_to_plat,
854 .bind = designware_eth_bind,
855 .probe = designware_eth_probe,
856 .remove = designware_eth_remove,
857 .ops = &designware_eth_ops,
858 .priv_auto = sizeof(struct dw_eth_dev),
859 .plat_auto = sizeof(struct dw_eth_pdata),
860 .flags = DM_FLAG_ALLOC_PRIV_DMA,
863 static struct pci_device_id supported[] = {
864 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_QRK_EMAC) },
868 U_BOOT_PCI_DEVICE(eth_designware, supported);