1 // SPDX-License-Identifier: GPL-2.0+
4 * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
8 * Designware ethernet IP driver for U-Boot
21 #include <asm/cache.h>
22 #include <dm/device_compat.h>
23 #include <dm/devres.h>
24 #include <linux/compiler.h>
25 #include <linux/err.h>
26 #include <linux/kernel.h>
28 #include <power/regulator.h>
29 #include "designware.h"
31 static int dw_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
34 struct dw_eth_dev *priv = dev_get_priv((struct udevice *)bus->priv);
35 struct eth_mac_regs *mac_p = priv->mac_regs_p;
37 struct eth_mac_regs *mac_p = bus->priv;
41 int timeout = CONFIG_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,
62 struct dw_eth_dev *priv = dev_get_priv((struct udevice *)bus->priv);
63 struct eth_mac_regs *mac_p = priv->mac_regs_p;
65 struct eth_mac_regs *mac_p = bus->priv;
69 int ret = -ETIMEDOUT, timeout = CONFIG_MDIO_TIMEOUT;
71 writel(val, &mac_p->miidata);
72 miiaddr = ((addr << MIIADDRSHIFT) & MII_ADDRMSK) |
73 ((reg << MIIREGSHIFT) & MII_REGMSK) | MII_WRITE;
75 writel(miiaddr | MII_CLKRANGE_150_250M | MII_BUSY, &mac_p->miiaddr);
78 while (get_timer(start) < timeout) {
79 if (!(readl(&mac_p->miiaddr) & MII_BUSY)) {
89 #if defined(CONFIG_DM_ETH) && CONFIG_IS_ENABLED(DM_GPIO)
90 static int dw_mdio_reset(struct mii_dev *bus)
92 struct udevice *dev = bus->priv;
93 struct dw_eth_dev *priv = dev_get_priv(dev);
94 struct dw_eth_pdata *pdata = dev_get_platdata(dev);
97 if (!dm_gpio_is_valid(&priv->reset_gpio))
101 ret = dm_gpio_set_value(&priv->reset_gpio, 0);
105 udelay(pdata->reset_delays[0]);
107 ret = dm_gpio_set_value(&priv->reset_gpio, 1);
111 udelay(pdata->reset_delays[1]);
113 ret = dm_gpio_set_value(&priv->reset_gpio, 0);
117 udelay(pdata->reset_delays[2]);
123 static int dw_mdio_init(const char *name, void *priv)
125 struct mii_dev *bus = mdio_alloc();
128 printf("Failed to allocate MDIO bus\n");
132 bus->read = dw_mdio_read;
133 bus->write = dw_mdio_write;
134 snprintf(bus->name, sizeof(bus->name), "%s", name);
135 #if defined(CONFIG_DM_ETH) && CONFIG_IS_ENABLED(DM_GPIO)
136 bus->reset = dw_mdio_reset;
141 return mdio_register(bus);
144 static void tx_descs_init(struct dw_eth_dev *priv)
146 struct eth_dma_regs *dma_p = priv->dma_regs_p;
147 struct dmamacdescr *desc_table_p = &priv->tx_mac_descrtable[0];
148 char *txbuffs = &priv->txbuffs[0];
149 struct dmamacdescr *desc_p;
152 for (idx = 0; idx < CONFIG_TX_DESCR_NUM; idx++) {
153 desc_p = &desc_table_p[idx];
154 desc_p->dmamac_addr = (ulong)&txbuffs[idx * CONFIG_ETH_BUFSIZE];
155 desc_p->dmamac_next = (ulong)&desc_table_p[idx + 1];
157 #if defined(CONFIG_DW_ALTDESCRIPTOR)
158 desc_p->txrx_status &= ~(DESC_TXSTS_TXINT | DESC_TXSTS_TXLAST |
159 DESC_TXSTS_TXFIRST | DESC_TXSTS_TXCRCDIS |
160 DESC_TXSTS_TXCHECKINSCTRL |
161 DESC_TXSTS_TXRINGEND | DESC_TXSTS_TXPADDIS);
163 desc_p->txrx_status |= DESC_TXSTS_TXCHAIN;
164 desc_p->dmamac_cntl = 0;
165 desc_p->txrx_status &= ~(DESC_TXSTS_MSK | DESC_TXSTS_OWNBYDMA);
167 desc_p->dmamac_cntl = DESC_TXCTRL_TXCHAIN;
168 desc_p->txrx_status = 0;
172 /* Correcting the last pointer of the chain */
173 desc_p->dmamac_next = (ulong)&desc_table_p[0];
175 /* Flush all Tx buffer descriptors at once */
176 flush_dcache_range((ulong)priv->tx_mac_descrtable,
177 (ulong)priv->tx_mac_descrtable +
178 sizeof(priv->tx_mac_descrtable));
180 writel((ulong)&desc_table_p[0], &dma_p->txdesclistaddr);
181 priv->tx_currdescnum = 0;
184 static void rx_descs_init(struct dw_eth_dev *priv)
186 struct eth_dma_regs *dma_p = priv->dma_regs_p;
187 struct dmamacdescr *desc_table_p = &priv->rx_mac_descrtable[0];
188 char *rxbuffs = &priv->rxbuffs[0];
189 struct dmamacdescr *desc_p;
192 /* Before passing buffers to GMAC we need to make sure zeros
193 * written there right after "priv" structure allocation were
195 * Otherwise there's a chance to get some of them flushed in RAM when
196 * GMAC is already pushing data to RAM via DMA. This way incoming from
197 * GMAC data will be corrupted. */
198 flush_dcache_range((ulong)rxbuffs, (ulong)rxbuffs + RX_TOTAL_BUFSIZE);
200 for (idx = 0; idx < CONFIG_RX_DESCR_NUM; idx++) {
201 desc_p = &desc_table_p[idx];
202 desc_p->dmamac_addr = (ulong)&rxbuffs[idx * CONFIG_ETH_BUFSIZE];
203 desc_p->dmamac_next = (ulong)&desc_table_p[idx + 1];
205 desc_p->dmamac_cntl =
206 (MAC_MAX_FRAME_SZ & DESC_RXCTRL_SIZE1MASK) |
209 desc_p->txrx_status = DESC_RXSTS_OWNBYDMA;
212 /* Correcting the last pointer of the chain */
213 desc_p->dmamac_next = (ulong)&desc_table_p[0];
215 /* Flush all Rx buffer descriptors at once */
216 flush_dcache_range((ulong)priv->rx_mac_descrtable,
217 (ulong)priv->rx_mac_descrtable +
218 sizeof(priv->rx_mac_descrtable));
220 writel((ulong)&desc_table_p[0], &dma_p->rxdesclistaddr);
221 priv->rx_currdescnum = 0;
224 static int _dw_write_hwaddr(struct dw_eth_dev *priv, u8 *mac_id)
226 struct eth_mac_regs *mac_p = priv->mac_regs_p;
227 u32 macid_lo, macid_hi;
229 macid_lo = mac_id[0] + (mac_id[1] << 8) + (mac_id[2] << 16) +
231 macid_hi = mac_id[4] + (mac_id[5] << 8);
233 writel(macid_hi, &mac_p->macaddr0hi);
234 writel(macid_lo, &mac_p->macaddr0lo);
239 static int dw_adjust_link(struct dw_eth_dev *priv, struct eth_mac_regs *mac_p,
240 struct phy_device *phydev)
242 u32 conf = readl(&mac_p->conf) | FRAMEBURSTENABLE | DISABLERXOWN;
245 printf("%s: No link.\n", phydev->dev->name);
249 if (phydev->speed != 1000)
250 conf |= MII_PORTSELECT;
252 conf &= ~MII_PORTSELECT;
254 if (phydev->speed == 100)
258 conf |= FULLDPLXMODE;
260 writel(conf, &mac_p->conf);
262 printf("Speed: %d, %s duplex%s\n", phydev->speed,
263 (phydev->duplex) ? "full" : "half",
264 (phydev->port == PORT_FIBRE) ? ", fiber mode" : "");
269 static void _dw_eth_halt(struct dw_eth_dev *priv)
271 struct eth_mac_regs *mac_p = priv->mac_regs_p;
272 struct eth_dma_regs *dma_p = priv->dma_regs_p;
274 writel(readl(&mac_p->conf) & ~(RXENABLE | TXENABLE), &mac_p->conf);
275 writel(readl(&dma_p->opmode) & ~(RXSTART | TXSTART), &dma_p->opmode);
277 phy_shutdown(priv->phydev);
280 int designware_eth_init(struct dw_eth_dev *priv, u8 *enetaddr)
282 struct eth_mac_regs *mac_p = priv->mac_regs_p;
283 struct eth_dma_regs *dma_p = priv->dma_regs_p;
287 writel(readl(&dma_p->busmode) | DMAMAC_SRST, &dma_p->busmode);
290 * When a MII PHY is used, we must set the PS bit for the DMA
293 if (priv->phydev->interface == PHY_INTERFACE_MODE_MII)
294 writel(readl(&mac_p->conf) | MII_PORTSELECT, &mac_p->conf);
296 writel(readl(&mac_p->conf) & ~MII_PORTSELECT, &mac_p->conf);
298 start = get_timer(0);
299 while (readl(&dma_p->busmode) & DMAMAC_SRST) {
300 if (get_timer(start) >= CONFIG_MACRESET_TIMEOUT) {
301 printf("DMA reset timeout\n");
309 * Soft reset above clears HW address registers.
310 * So we have to set it here once again.
312 _dw_write_hwaddr(priv, enetaddr);
317 writel(FIXEDBURST | PRIORXTX_41 | DMA_PBL, &dma_p->busmode);
319 #ifndef CONFIG_DW_MAC_FORCE_THRESHOLD_MODE
320 writel(readl(&dma_p->opmode) | FLUSHTXFIFO | STOREFORWARD,
323 writel(readl(&dma_p->opmode) | FLUSHTXFIFO,
327 writel(readl(&dma_p->opmode) | RXSTART | TXSTART, &dma_p->opmode);
329 #ifdef CONFIG_DW_AXI_BURST_LEN
330 writel((CONFIG_DW_AXI_BURST_LEN & 0x1FF >> 1), &dma_p->axibus);
333 /* Start up the PHY */
334 ret = phy_startup(priv->phydev);
336 printf("Could not initialize PHY %s\n",
337 priv->phydev->dev->name);
341 ret = dw_adjust_link(priv, mac_p, priv->phydev);
348 int designware_eth_enable(struct dw_eth_dev *priv)
350 struct eth_mac_regs *mac_p = priv->mac_regs_p;
352 if (!priv->phydev->link)
355 writel(readl(&mac_p->conf) | RXENABLE | TXENABLE, &mac_p->conf);
362 static int _dw_eth_send(struct dw_eth_dev *priv, void *packet, int length)
364 struct eth_dma_regs *dma_p = priv->dma_regs_p;
365 u32 desc_num = priv->tx_currdescnum;
366 struct dmamacdescr *desc_p = &priv->tx_mac_descrtable[desc_num];
367 ulong desc_start = (ulong)desc_p;
368 ulong desc_end = desc_start +
369 roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN);
370 ulong data_start = desc_p->dmamac_addr;
371 ulong data_end = data_start + roundup(length, ARCH_DMA_MINALIGN);
373 * Strictly we only need to invalidate the "txrx_status" field
374 * for the following check, but on some platforms we cannot
375 * invalidate only 4 bytes, so we flush the entire descriptor,
376 * which is 16 bytes in total. This is safe because the
377 * individual descriptors in the array are each aligned to
378 * ARCH_DMA_MINALIGN and padded appropriately.
380 invalidate_dcache_range(desc_start, desc_end);
382 /* Check if the descriptor is owned by CPU */
383 if (desc_p->txrx_status & DESC_TXSTS_OWNBYDMA) {
384 printf("CPU not owner of tx frame\n");
388 memcpy((void *)data_start, packet, length);
389 if (length < ETH_ZLEN) {
390 memset(&((char *)data_start)[length], 0, ETH_ZLEN - length);
394 /* Flush data to be sent */
395 flush_dcache_range(data_start, data_end);
397 #if defined(CONFIG_DW_ALTDESCRIPTOR)
398 desc_p->txrx_status |= DESC_TXSTS_TXFIRST | DESC_TXSTS_TXLAST;
399 desc_p->dmamac_cntl = (desc_p->dmamac_cntl & ~DESC_TXCTRL_SIZE1MASK) |
400 ((length << DESC_TXCTRL_SIZE1SHFT) &
401 DESC_TXCTRL_SIZE1MASK);
403 desc_p->txrx_status &= ~(DESC_TXSTS_MSK);
404 desc_p->txrx_status |= DESC_TXSTS_OWNBYDMA;
406 desc_p->dmamac_cntl = (desc_p->dmamac_cntl & ~DESC_TXCTRL_SIZE1MASK) |
407 ((length << DESC_TXCTRL_SIZE1SHFT) &
408 DESC_TXCTRL_SIZE1MASK) | DESC_TXCTRL_TXLAST |
411 desc_p->txrx_status = DESC_TXSTS_OWNBYDMA;
414 /* Flush modified buffer descriptor */
415 flush_dcache_range(desc_start, desc_end);
417 /* Test the wrap-around condition. */
418 if (++desc_num >= CONFIG_TX_DESCR_NUM)
421 priv->tx_currdescnum = desc_num;
423 /* Start the transmission */
424 writel(POLL_DATA, &dma_p->txpolldemand);
429 static int _dw_eth_recv(struct dw_eth_dev *priv, uchar **packetp)
431 u32 status, desc_num = priv->rx_currdescnum;
432 struct dmamacdescr *desc_p = &priv->rx_mac_descrtable[desc_num];
433 int length = -EAGAIN;
434 ulong desc_start = (ulong)desc_p;
435 ulong desc_end = desc_start +
436 roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN);
437 ulong data_start = desc_p->dmamac_addr;
440 /* Invalidate entire buffer descriptor */
441 invalidate_dcache_range(desc_start, desc_end);
443 status = desc_p->txrx_status;
445 /* Check if the owner is the CPU */
446 if (!(status & DESC_RXSTS_OWNBYDMA)) {
448 length = (status & DESC_RXSTS_FRMLENMSK) >>
449 DESC_RXSTS_FRMLENSHFT;
451 /* Invalidate received data */
452 data_end = data_start + roundup(length, ARCH_DMA_MINALIGN);
453 invalidate_dcache_range(data_start, data_end);
454 *packetp = (uchar *)(ulong)desc_p->dmamac_addr;
460 static int _dw_free_pkt(struct dw_eth_dev *priv)
462 u32 desc_num = priv->rx_currdescnum;
463 struct dmamacdescr *desc_p = &priv->rx_mac_descrtable[desc_num];
464 ulong desc_start = (ulong)desc_p;
465 ulong desc_end = desc_start +
466 roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN);
469 * Make the current descriptor valid again and go to
472 desc_p->txrx_status |= DESC_RXSTS_OWNBYDMA;
474 /* Flush only status field - others weren't changed */
475 flush_dcache_range(desc_start, desc_end);
477 /* Test the wrap-around condition. */
478 if (++desc_num >= CONFIG_RX_DESCR_NUM)
480 priv->rx_currdescnum = desc_num;
485 static int dw_phy_init(struct dw_eth_dev *priv, void *dev)
487 struct phy_device *phydev;
488 int phy_addr = -1, ret;
490 #ifdef CONFIG_PHY_ADDR
491 phy_addr = CONFIG_PHY_ADDR;
494 phydev = phy_connect(priv->bus, phy_addr, dev, priv->interface);
498 phydev->supported &= PHY_GBIT_FEATURES;
499 if (priv->max_speed) {
500 ret = phy_set_supported(phydev, priv->max_speed);
504 phydev->advertising = phydev->supported;
506 priv->phydev = phydev;
512 #ifndef CONFIG_DM_ETH
513 static int dw_eth_init(struct eth_device *dev, bd_t *bis)
517 ret = designware_eth_init(dev->priv, dev->enetaddr);
519 ret = designware_eth_enable(dev->priv);
524 static int dw_eth_send(struct eth_device *dev, void *packet, int length)
526 return _dw_eth_send(dev->priv, packet, length);
529 static int dw_eth_recv(struct eth_device *dev)
534 length = _dw_eth_recv(dev->priv, &packet);
535 if (length == -EAGAIN)
537 net_process_received_packet(packet, length);
539 _dw_free_pkt(dev->priv);
544 static void dw_eth_halt(struct eth_device *dev)
546 return _dw_eth_halt(dev->priv);
549 static int dw_write_hwaddr(struct eth_device *dev)
551 return _dw_write_hwaddr(dev->priv, dev->enetaddr);
554 int designware_initialize(ulong base_addr, u32 interface)
556 struct eth_device *dev;
557 struct dw_eth_dev *priv;
559 dev = (struct eth_device *) malloc(sizeof(struct eth_device));
564 * Since the priv structure contains the descriptors which need a strict
565 * buswidth alignment, memalign is used to allocate memory
567 priv = (struct dw_eth_dev *) memalign(ARCH_DMA_MINALIGN,
568 sizeof(struct dw_eth_dev));
574 if ((phys_addr_t)priv + sizeof(*priv) > (1ULL << 32)) {
575 printf("designware: buffers are outside DMA memory\n");
579 memset(dev, 0, sizeof(struct eth_device));
580 memset(priv, 0, sizeof(struct dw_eth_dev));
582 sprintf(dev->name, "dwmac.%lx", base_addr);
583 dev->iobase = (int)base_addr;
587 priv->mac_regs_p = (struct eth_mac_regs *)base_addr;
588 priv->dma_regs_p = (struct eth_dma_regs *)(base_addr +
591 dev->init = dw_eth_init;
592 dev->send = dw_eth_send;
593 dev->recv = dw_eth_recv;
594 dev->halt = dw_eth_halt;
595 dev->write_hwaddr = dw_write_hwaddr;
599 priv->interface = interface;
601 dw_mdio_init(dev->name, priv->mac_regs_p);
602 priv->bus = miiphy_get_dev_by_name(dev->name);
604 return dw_phy_init(priv, dev);
609 static int designware_eth_start(struct udevice *dev)
611 struct eth_pdata *pdata = dev_get_platdata(dev);
612 struct dw_eth_dev *priv = dev_get_priv(dev);
615 ret = designware_eth_init(priv, pdata->enetaddr);
618 ret = designware_eth_enable(priv);
625 int designware_eth_send(struct udevice *dev, void *packet, int length)
627 struct dw_eth_dev *priv = dev_get_priv(dev);
629 return _dw_eth_send(priv, packet, length);
632 int designware_eth_recv(struct udevice *dev, int flags, uchar **packetp)
634 struct dw_eth_dev *priv = dev_get_priv(dev);
636 return _dw_eth_recv(priv, packetp);
639 int designware_eth_free_pkt(struct udevice *dev, uchar *packet, int length)
641 struct dw_eth_dev *priv = dev_get_priv(dev);
643 return _dw_free_pkt(priv);
646 void designware_eth_stop(struct udevice *dev)
648 struct dw_eth_dev *priv = dev_get_priv(dev);
650 return _dw_eth_halt(priv);
653 int designware_eth_write_hwaddr(struct udevice *dev)
655 struct eth_pdata *pdata = dev_get_platdata(dev);
656 struct dw_eth_dev *priv = dev_get_priv(dev);
658 return _dw_write_hwaddr(priv, pdata->enetaddr);
661 static int designware_eth_bind(struct udevice *dev)
664 static int num_cards;
667 /* Create a unique device name for PCI type devices */
668 if (device_is_on_pci_bus(dev)) {
669 sprintf(name, "eth_designware#%u", num_cards++);
670 device_set_name(dev, name);
677 int designware_eth_probe(struct udevice *dev)
679 struct eth_pdata *pdata = dev_get_platdata(dev);
680 struct dw_eth_dev *priv = dev_get_priv(dev);
681 u32 iobase = pdata->iobase;
684 struct reset_ctl_bulk reset_bulk;
688 priv->clock_count = 0;
689 clock_nb = dev_count_phandle_with_args(dev, "clocks", "#clock-cells");
691 priv->clocks = devm_kcalloc(dev, clock_nb, sizeof(struct clk),
696 for (i = 0; i < clock_nb; i++) {
697 err = clk_get_by_index(dev, i, &priv->clocks[i]);
701 err = clk_enable(&priv->clocks[i]);
702 if (err && err != -ENOSYS && err != -ENOTSUPP) {
703 pr_err("failed to enable clock %d\n", i);
704 clk_free(&priv->clocks[i]);
709 } else if (clock_nb != -ENOENT) {
710 pr_err("failed to get clock phandle(%d)\n", clock_nb);
715 #if defined(CONFIG_DM_REGULATOR)
716 struct udevice *phy_supply;
718 ret = device_get_supply_regulator(dev, "phy-supply",
721 debug("%s: No phy supply\n", dev->name);
723 ret = regulator_set_enable(phy_supply, true);
725 puts("Error enabling phy supply\n");
731 ret = reset_get_bulk(dev, &reset_bulk);
733 dev_warn(dev, "Can't get reset: %d\n", ret);
735 reset_deassert_bulk(&reset_bulk);
739 * If we are on PCI bus, either directly attached to a PCI root port,
740 * or via a PCI bridge, fill in platdata before we probe the hardware.
742 if (device_is_on_pci_bus(dev)) {
743 dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0, &iobase);
744 iobase &= PCI_BASE_ADDRESS_MEM_MASK;
745 iobase = dm_pci_mem_to_phys(dev, iobase);
747 pdata->iobase = iobase;
748 pdata->phy_interface = PHY_INTERFACE_MODE_RMII;
752 debug("%s, iobase=%x, priv=%p\n", __func__, iobase, priv);
754 priv->mac_regs_p = (struct eth_mac_regs *)ioaddr;
755 priv->dma_regs_p = (struct eth_dma_regs *)(ioaddr + DW_DMA_BASE_OFFSET);
756 priv->interface = pdata->phy_interface;
757 priv->max_speed = pdata->max_speed;
759 ret = dw_mdio_init(dev->name, dev);
764 priv->bus = miiphy_get_dev_by_name(dev->name);
766 ret = dw_phy_init(priv, dev);
767 debug("%s, ret=%d\n", __func__, ret);
771 /* continue here for cleanup if no PHY found */
773 mdio_unregister(priv->bus);
774 mdio_free(priv->bus);
779 ret = clk_release_all(priv->clocks, priv->clock_count);
781 pr_err("failed to disable all clocks\n");
787 static int designware_eth_remove(struct udevice *dev)
789 struct dw_eth_dev *priv = dev_get_priv(dev);
792 mdio_unregister(priv->bus);
793 mdio_free(priv->bus);
796 return clk_release_all(priv->clocks, priv->clock_count);
802 const struct eth_ops designware_eth_ops = {
803 .start = designware_eth_start,
804 .send = designware_eth_send,
805 .recv = designware_eth_recv,
806 .free_pkt = designware_eth_free_pkt,
807 .stop = designware_eth_stop,
808 .write_hwaddr = designware_eth_write_hwaddr,
811 int designware_eth_ofdata_to_platdata(struct udevice *dev)
813 struct dw_eth_pdata *dw_pdata = dev_get_platdata(dev);
814 #if CONFIG_IS_ENABLED(DM_GPIO)
815 struct dw_eth_dev *priv = dev_get_priv(dev);
817 struct eth_pdata *pdata = &dw_pdata->eth_pdata;
818 const char *phy_mode;
819 #if CONFIG_IS_ENABLED(DM_GPIO)
820 int reset_flags = GPIOD_IS_OUT;
824 pdata->iobase = dev_read_addr(dev);
825 pdata->phy_interface = -1;
826 phy_mode = dev_read_string(dev, "phy-mode");
828 pdata->phy_interface = phy_get_interface_by_name(phy_mode);
829 if (pdata->phy_interface == -1) {
830 debug("%s: Invalid PHY interface '%s'\n", __func__, phy_mode);
834 pdata->max_speed = dev_read_u32_default(dev, "max-speed", 0);
836 #if CONFIG_IS_ENABLED(DM_GPIO)
837 if (dev_read_bool(dev, "snps,reset-active-low"))
838 reset_flags |= GPIOD_ACTIVE_LOW;
840 ret = gpio_request_by_name(dev, "snps,reset-gpio", 0,
841 &priv->reset_gpio, reset_flags);
843 ret = dev_read_u32_array(dev, "snps,reset-delays-us",
844 dw_pdata->reset_delays, 3);
845 } else if (ret == -ENOENT) {
853 static const struct udevice_id designware_eth_ids[] = {
854 { .compatible = "allwinner,sun7i-a20-gmac" },
855 { .compatible = "amlogic,meson6-dwmac" },
856 { .compatible = "amlogic,meson-gx-dwmac" },
857 { .compatible = "amlogic,meson-gxbb-dwmac" },
858 { .compatible = "amlogic,meson-axg-dwmac" },
859 { .compatible = "st,stm32-dwmac" },
860 { .compatible = "snps,arc-dwmac-3.70a" },
864 U_BOOT_DRIVER(eth_designware) = {
865 .name = "eth_designware",
867 .of_match = designware_eth_ids,
868 .ofdata_to_platdata = designware_eth_ofdata_to_platdata,
869 .bind = designware_eth_bind,
870 .probe = designware_eth_probe,
871 .remove = designware_eth_remove,
872 .ops = &designware_eth_ops,
873 .priv_auto_alloc_size = sizeof(struct dw_eth_dev),
874 .platdata_auto_alloc_size = sizeof(struct dw_eth_pdata),
875 .flags = DM_FLAG_ALLOC_PRIV_DMA,
878 static struct pci_device_id supported[] = {
879 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_QRK_EMAC) },
883 U_BOOT_PCI_DEVICE(eth_designware, supported);