1 // SPDX-License-Identifier: GPL-2.0+
4 * Marvell Semiconductor <www.marvell.com>
5 * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
8 * Ingo Assmus <ingo.assmus@keymile.com>
10 * based on - Driver for MV64360X ethernet ports
11 * Copyright (C) 2002 rabeeh@galileo.co.il
21 #include <asm/global_data.h>
23 #include <linux/delay.h>
24 #include <linux/errno.h>
25 #include <asm/types.h>
26 #include <asm/system.h>
27 #include <asm/byteorder.h>
28 #include <asm/arch/cpu.h>
30 #if defined(CONFIG_ARCH_KIRKWOOD)
31 #include <asm/arch/soc.h>
32 #elif defined(CONFIG_ARCH_ORION5X)
33 #include <asm/arch/orion5x.h>
38 DECLARE_GLOBAL_DATA_PTR;
40 #define MV_PHY_ADR_REQUEST 0xee
41 #define MVGBE_SMI_REG (((struct mvgbe_registers *)MVGBE0_BASE)->smi)
42 #define MVGBE_PGADR_REG 22
44 #if defined(CONFIG_PHYLIB) || defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
45 static int smi_wait_ready(struct mvgbe_device *dmvgbe)
49 ret = wait_for_bit_le32(&MVGBE_SMI_REG, MVGBE_PHY_SMI_BUSY_MASK, false,
50 MVGBE_PHY_SMI_TIMEOUT_MS, false);
52 printf("Error: SMI busy timeout\n");
59 static int __mvgbe_mdio_read(struct mvgbe_device *dmvgbe, int phy_adr,
60 int devad, int reg_ofs)
62 struct mvgbe_registers *regs = dmvgbe->regs;
67 /* Phyadr read request */
68 if (phy_adr == MV_PHY_ADR_REQUEST &&
69 reg_ofs == MV_PHY_ADR_REQUEST) {
71 data = (u16) (MVGBE_REG_RD(regs->phyadr) & PHYADR_MASK);
74 /* check parameters */
75 if (phy_adr > PHYADR_MASK) {
76 printf("Err..(%s) Invalid PHY address %d\n",
80 if (reg_ofs > PHYREG_MASK) {
81 printf("Err..(%s) Invalid register offset %d\n",
86 /* wait till the SMI is not busy */
87 if (smi_wait_ready(dmvgbe) < 0)
90 /* fill the phy address and regiser offset and read opcode */
91 smi_reg = (phy_adr << MVGBE_PHY_SMI_DEV_ADDR_OFFS)
92 | (reg_ofs << MVGBE_SMI_REG_ADDR_OFFS)
93 | MVGBE_PHY_SMI_OPCODE_READ;
95 /* write the smi register */
96 MVGBE_REG_WR(MVGBE_SMI_REG, smi_reg);
98 /*wait till read value is ready */
99 timeout = MVGBE_PHY_SMI_TIMEOUT;
102 /* read smi register */
103 smi_reg = MVGBE_REG_RD(MVGBE_SMI_REG);
104 if (timeout-- == 0) {
105 printf("Err..(%s) SMI read ready timeout\n",
109 } while (!(smi_reg & MVGBE_PHY_SMI_READ_VALID_MASK));
111 /* Wait for the data to update in the SMI register */
112 for (timeout = 0; timeout < MVGBE_PHY_SMI_TIMEOUT; timeout++)
115 data = (u16) (MVGBE_REG_RD(MVGBE_SMI_REG) & MVGBE_PHY_SMI_DATA_MASK);
117 debug("%s:(adr %d, off %d) value= %04x\n", __func__, phy_adr, reg_ofs,
124 * smi_reg_read - miiphy_read callback function.
126 * Returns 16bit phy register value, or -EFAULT on error
128 static int smi_reg_read(struct mii_dev *bus, int phy_adr, int devad,
131 struct mvgbe_device *dmvgbe = bus->priv;
133 return __mvgbe_mdio_read(dmvgbe, phy_adr, devad, reg_ofs);
136 static int __mvgbe_mdio_write(struct mvgbe_device *dmvgbe, int phy_adr,
137 int devad, int reg_ofs, u16 data)
139 struct mvgbe_registers *regs = dmvgbe->regs;
142 /* Phyadr write request*/
143 if (phy_adr == MV_PHY_ADR_REQUEST &&
144 reg_ofs == MV_PHY_ADR_REQUEST) {
145 MVGBE_REG_WR(regs->phyadr, data);
149 /* check parameters */
150 if (phy_adr > PHYADR_MASK) {
151 printf("Err..(%s) Invalid phy address\n", __func__);
154 if (reg_ofs > PHYREG_MASK) {
155 printf("Err..(%s) Invalid register offset\n", __func__);
159 /* wait till the SMI is not busy */
160 if (smi_wait_ready(dmvgbe) < 0)
163 /* fill the phy addr and reg offset and write opcode and data */
164 smi_reg = (data << MVGBE_PHY_SMI_DATA_OFFS);
165 smi_reg |= (phy_adr << MVGBE_PHY_SMI_DEV_ADDR_OFFS)
166 | (reg_ofs << MVGBE_SMI_REG_ADDR_OFFS);
167 smi_reg &= ~MVGBE_PHY_SMI_OPCODE_READ;
169 /* write the smi register */
170 MVGBE_REG_WR(MVGBE_SMI_REG, smi_reg);
176 * smi_reg_write - miiphy_write callback function.
178 * Returns 0 if write succeed, -EFAULT on error
180 static int smi_reg_write(struct mii_dev *bus, int phy_adr, int devad,
181 int reg_ofs, u16 data)
183 struct mvgbe_device *dmvgbe = bus->priv;
185 return __mvgbe_mdio_write(dmvgbe, phy_adr, devad, reg_ofs, data);
189 /* Stop and checks all queues */
190 static void stop_queue(u32 * qreg)
194 reg_data = readl(qreg);
196 if (reg_data & 0xFF) {
197 /* Issue stop command for active channels only */
198 writel((reg_data << 8), qreg);
200 /* Wait for all queue activity to terminate. */
203 * Check port cause register that all queues
206 reg_data = readl(qreg);
208 while (reg_data & 0xFF);
213 * set_access_control - Config address decode parameters for Ethernet unit
215 * This function configures the address decode parameters for the Gigabit
216 * Ethernet Controller according the given parameters struct.
218 * @regs Register struct pointer.
219 * @param Address decode parameter struct.
221 static void set_access_control(struct mvgbe_registers *regs,
222 struct mvgbe_winparam *param)
226 /* Set access control register */
227 access_prot_reg = MVGBE_REG_RD(regs->epap);
228 /* clear window permission */
229 access_prot_reg &= (~(3 << (param->win * 2)));
230 access_prot_reg |= (param->access_ctrl << (param->win * 2));
231 MVGBE_REG_WR(regs->epap, access_prot_reg);
233 /* Set window Size reg (SR) */
234 MVGBE_REG_WR(regs->barsz[param->win].size,
235 (((param->size / 0x10000) - 1) << 16));
237 /* Set window Base address reg (BA) */
238 MVGBE_REG_WR(regs->barsz[param->win].bar,
239 (param->target | param->attrib | param->base_addr));
240 /* High address remap reg (HARR) */
242 MVGBE_REG_WR(regs->ha_remap[param->win], param->high_addr);
244 /* Base address enable reg (BARER) */
245 if (param->enable == 1)
246 MVGBE_REG_BITS_RESET(regs->bare, (1 << param->win));
248 MVGBE_REG_BITS_SET(regs->bare, (1 << param->win));
251 static void set_dram_access(struct mvgbe_registers *regs)
253 struct mvgbe_winparam win_param;
256 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
257 /* Set access parameters for DRAM bank i */
258 win_param.win = i; /* Use Ethernet window i */
259 /* Window target - DDR */
260 win_param.target = MVGBE_TARGET_DRAM;
261 /* Enable full access */
262 win_param.access_ctrl = EWIN_ACCESS_FULL;
263 win_param.high_addr = 0;
264 /* Get bank base and size */
265 win_param.base_addr = gd->bd->bi_dram[i].start;
266 win_param.size = gd->bd->bi_dram[i].size;
267 if (win_param.size == 0)
268 win_param.enable = 0;
270 win_param.enable = 1; /* Enable the access */
272 /* Enable DRAM bank */
275 win_param.attrib = EBAR_DRAM_CS0;
278 win_param.attrib = EBAR_DRAM_CS1;
281 win_param.attrib = EBAR_DRAM_CS2;
284 win_param.attrib = EBAR_DRAM_CS3;
287 /* invalid bank, disable access */
288 win_param.enable = 0;
289 win_param.attrib = 0;
292 /* Set the access control for address window(EPAPR) RD/WR */
293 set_access_control(regs, &win_param);
298 * port_init_mac_tables - Clear all entrance in the UC, SMC and OMC tables
300 * Go through all the DA filter tables (Unicast, Special Multicast & Other
301 * Multicast) and set each entry to 0.
303 static void port_init_mac_tables(struct mvgbe_registers *regs)
307 /* Clear DA filter unicast table (Ex_dFUT) */
308 for (table_index = 0; table_index < 4; ++table_index)
309 MVGBE_REG_WR(regs->dfut[table_index], 0);
311 for (table_index = 0; table_index < 64; ++table_index) {
312 /* Clear DA filter special multicast table (Ex_dFSMT) */
313 MVGBE_REG_WR(regs->dfsmt[table_index], 0);
314 /* Clear DA filter other multicast table (Ex_dFOMT) */
315 MVGBE_REG_WR(regs->dfomt[table_index], 0);
320 * port_uc_addr - This function Set the port unicast address table
322 * This function locates the proper entry in the Unicast table for the
323 * specified MAC nibble and sets its properties according to function
325 * This function add/removes MAC addresses from the port unicast address
328 * @uc_nibble Unicast MAC Address last nibble.
329 * @option 0 = Add, 1 = remove address.
331 * RETURN: 1 if output succeeded. 0 if option parameter is invalid.
333 static int port_uc_addr(struct mvgbe_registers *regs, u8 uc_nibble,
340 /* Locate the Unicast table entry */
341 uc_nibble = (0xf & uc_nibble);
342 /* Register offset from unicast table base */
343 tbl_offset = (uc_nibble / 4);
344 /* Entry offset within the above register */
345 reg_offset = uc_nibble % 4;
348 case REJECT_MAC_ADDR:
350 * Clear accepts frame bit at specified unicast
353 unicast_reg = MVGBE_REG_RD(regs->dfut[tbl_offset]);
354 unicast_reg &= (0xFF << (8 * reg_offset));
355 MVGBE_REG_WR(regs->dfut[tbl_offset], unicast_reg);
357 case ACCEPT_MAC_ADDR:
358 /* Set accepts frame bit at unicast DA filter table entry */
359 unicast_reg = MVGBE_REG_RD(regs->dfut[tbl_offset]);
360 unicast_reg &= (0xFF << (8 * reg_offset));
361 unicast_reg |= ((0x01 | (RXUQ << 1)) << (8 * reg_offset));
362 MVGBE_REG_WR(regs->dfut[tbl_offset], unicast_reg);
371 * port_uc_addr_set - This function Set the port Unicast address.
373 static void port_uc_addr_set(struct mvgbe_device *dmvgbe, u8 *p_addr)
375 struct mvgbe_registers *regs = dmvgbe->regs;
379 mac_l = (p_addr[4] << 8) | (p_addr[5]);
380 mac_h = (p_addr[0] << 24) | (p_addr[1] << 16) | (p_addr[2] << 8) |
383 MVGBE_REG_WR(regs->macal, mac_l);
384 MVGBE_REG_WR(regs->macah, mac_h);
386 /* Accept frames of this address */
387 port_uc_addr(regs, p_addr[5], ACCEPT_MAC_ADDR);
391 * mvgbe_init_rx_desc_ring - Curve a Rx chain desc list and buffer in memory.
393 static void mvgbe_init_rx_desc_ring(struct mvgbe_device *dmvgbe)
395 struct mvgbe_rxdesc *p_rx_desc;
398 /* initialize the Rx descriptors ring */
399 p_rx_desc = dmvgbe->p_rxdesc;
400 for (i = 0; i < RINGSZ; i++) {
402 MVGBE_BUFFER_OWNED_BY_DMA | MVGBE_RX_EN_INTERRUPT;
403 p_rx_desc->buf_size = PKTSIZE_ALIGN;
404 p_rx_desc->byte_cnt = 0;
405 p_rx_desc->buf_ptr = dmvgbe->p_rxbuf + i * PKTSIZE_ALIGN;
406 if (i == (RINGSZ - 1))
407 p_rx_desc->nxtdesc_p = dmvgbe->p_rxdesc;
409 p_rx_desc->nxtdesc_p = (struct mvgbe_rxdesc *)
410 ((u32) p_rx_desc + MV_RXQ_DESC_ALIGNED_SIZE);
411 p_rx_desc = p_rx_desc->nxtdesc_p;
414 dmvgbe->p_rxdesc_curr = dmvgbe->p_rxdesc;
417 static int __mvgbe_init(struct mvgbe_device *dmvgbe, u8 *enetaddr,
420 struct mvgbe_registers *regs = dmvgbe->regs;
422 mvgbe_init_rx_desc_ring(dmvgbe);
424 /* Clear the ethernet port interrupts */
425 MVGBE_REG_WR(regs->ic, 0);
426 MVGBE_REG_WR(regs->ice, 0);
427 /* Unmask RX buffer and TX end interrupt */
428 MVGBE_REG_WR(regs->pim, INT_CAUSE_UNMASK_ALL);
429 /* Unmask phy and link status changes interrupts */
430 MVGBE_REG_WR(regs->peim, INT_CAUSE_UNMASK_ALL_EXT);
432 set_dram_access(regs);
433 port_init_mac_tables(regs);
434 port_uc_addr_set(dmvgbe, enetaddr);
436 /* Assign port configuration and command. */
437 MVGBE_REG_WR(regs->pxc, PRT_CFG_VAL);
438 MVGBE_REG_WR(regs->pxcx, PORT_CFG_EXTEND_VALUE);
439 MVGBE_REG_WR(regs->psc0, PORT_SERIAL_CONTROL_VALUE);
441 /* Assign port SDMA configuration */
442 MVGBE_REG_WR(regs->sdc, PORT_SDMA_CFG_VALUE);
443 MVGBE_REG_WR(regs->tqx[0].qxttbc, QTKNBKT_DEF_VAL);
444 MVGBE_REG_WR(regs->tqx[0].tqxtbc,
445 (QMTBS_DEF_VAL << 16) | QTKNRT_DEF_VAL);
446 /* Turn off the port/RXUQ bandwidth limitation */
447 MVGBE_REG_WR(regs->pmtu, 0);
449 /* Set maximum receive buffer to 9700 bytes */
450 MVGBE_REG_WR(regs->psc0, MVGBE_MAX_RX_PACKET_9700BYTE
451 | (MVGBE_REG_RD(regs->psc0) & MRU_MASK));
453 /* Enable port initially */
454 MVGBE_REG_BITS_SET(regs->psc0, MVGBE_SERIAL_PORT_EN);
457 * Set ethernet MTU for leaky bucket mechanism to 0 - this will
458 * disable the leaky bucket mechanism .
460 MVGBE_REG_WR(regs->pmtu, 0);
462 /* Assignment of Rx CRDB of given RXUQ */
463 MVGBE_REG_WR(regs->rxcdp[RXUQ], (u32) dmvgbe->p_rxdesc_curr);
464 /* ensure previous write is done before enabling Rx DMA */
466 /* Enable port Rx. */
467 MVGBE_REG_WR(regs->rqc, (1 << RXUQ));
472 static void __mvgbe_halt(struct mvgbe_device *dmvgbe)
474 struct mvgbe_registers *regs = dmvgbe->regs;
476 /* Disable all gigE address decoder */
477 MVGBE_REG_WR(regs->bare, 0x3f);
479 stop_queue(®s->tqc);
480 stop_queue(®s->rqc);
483 MVGBE_REG_BITS_RESET(regs->psc0, MVGBE_SERIAL_PORT_EN);
484 /* Set port is not reset */
485 MVGBE_REG_BITS_RESET(regs->psc1, 1 << 4);
486 #ifdef CONFIG_SYS_MII_MODE
487 /* Set MMI interface up */
488 MVGBE_REG_BITS_RESET(regs->psc1, 1 << 3);
490 /* Disable & mask ethernet port interrupts */
491 MVGBE_REG_WR(regs->ic, 0);
492 MVGBE_REG_WR(regs->ice, 0);
493 MVGBE_REG_WR(regs->pim, 0);
494 MVGBE_REG_WR(regs->peim, 0);
497 static int mvgbe_write_hwaddr(struct udevice *dev)
499 struct eth_pdata *pdata = dev_get_plat(dev);
501 port_uc_addr_set(dev_get_priv(dev), pdata->enetaddr);
506 static int __mvgbe_send(struct mvgbe_device *dmvgbe, void *dataptr,
509 struct mvgbe_registers *regs = dmvgbe->regs;
510 struct mvgbe_txdesc *p_txdesc = dmvgbe->p_txdesc;
511 void *p = (void *)dataptr;
515 /* Copy buffer if it's misaligned */
516 if ((u32) dataptr & 0x07) {
517 if (datasize > PKTSIZE_ALIGN) {
518 printf("Non-aligned data too large (%d)\n",
523 memcpy(dmvgbe->p_aligned_txbuf, p, datasize);
524 p = dmvgbe->p_aligned_txbuf;
527 p_txdesc->cmd_sts = MVGBE_ZERO_PADDING | MVGBE_GEN_CRC;
528 p_txdesc->cmd_sts |= MVGBE_TX_FIRST_DESC | MVGBE_TX_LAST_DESC;
529 p_txdesc->cmd_sts |= MVGBE_BUFFER_OWNED_BY_DMA;
530 p_txdesc->cmd_sts |= MVGBE_TX_EN_INTERRUPT;
531 p_txdesc->buf_ptr = (u8 *) p;
532 p_txdesc->byte_cnt = datasize;
534 /* Set this tc desc as zeroth TXUQ */
535 txuq0_reg_addr = (u32)®s->tcqdp[TXUQ];
536 writel((u32) p_txdesc, txuq0_reg_addr);
538 /* ensure tx desc writes above are performed before we start Tx DMA */
541 /* Apply send command using zeroth TXUQ */
542 MVGBE_REG_WR(regs->tqc, (1 << TXUQ));
545 * wait for packet xmit completion
547 cmd_sts = readl(&p_txdesc->cmd_sts);
548 while (cmd_sts & MVGBE_BUFFER_OWNED_BY_DMA) {
549 /* return fail if error is detected */
550 if ((cmd_sts & (MVGBE_ERROR_SUMMARY | MVGBE_TX_LAST_FRAME)) ==
551 (MVGBE_ERROR_SUMMARY | MVGBE_TX_LAST_FRAME) &&
552 cmd_sts & (MVGBE_UR_ERROR | MVGBE_RL_ERROR)) {
553 printf("Err..(%s) in xmit packet\n", __func__);
556 cmd_sts = readl(&p_txdesc->cmd_sts);
561 static int __mvgbe_recv(struct mvgbe_device *dmvgbe, uchar **packetp)
563 struct mvgbe_rxdesc *p_rxdesc_curr = dmvgbe->p_rxdesc_curr;
566 u32 rxdesc_curr_addr;
572 /* wait untill rx packet available or timeout */
574 if (timeout < MVGBE_PHY_SMI_TIMEOUT)
577 debug("%s time out...\n", __func__);
580 } while (readl(&p_rxdesc_curr->cmd_sts) & MVGBE_BUFFER_OWNED_BY_DMA);
582 if (p_rxdesc_curr->byte_cnt != 0) {
583 debug("%s: Received %d byte Packet @ 0x%x (cmd_sts= %08x)\n",
584 __func__, (u32) p_rxdesc_curr->byte_cnt,
585 (u32) p_rxdesc_curr->buf_ptr,
586 (u32) p_rxdesc_curr->cmd_sts);
590 * In case received a packet without first/last bits on
591 * OR the error summary bit is on,
592 * the packets needs to be dropeed.
594 cmd_sts = readl(&p_rxdesc_curr->cmd_sts);
597 (MVGBE_RX_FIRST_DESC | MVGBE_RX_LAST_DESC))
598 != (MVGBE_RX_FIRST_DESC | MVGBE_RX_LAST_DESC)) {
600 printf("Err..(%s) Dropping packet spread on"
601 " multiple descriptors\n", __func__);
603 } else if (cmd_sts & MVGBE_ERROR_SUMMARY) {
605 printf("Err..(%s) Dropping packet with errors\n",
609 /* !!! call higher layer processing */
610 debug("%s: Sending Received packet to"
611 " upper layer (net_process_received_packet)\n",
614 data = (p_rxdesc_curr->buf_ptr + RX_BUF_OFFSET);
615 rx_bytes = (int)(p_rxdesc_curr->byte_cnt -
621 * free these descriptors and point next in the ring
623 p_rxdesc_curr->cmd_sts =
624 MVGBE_BUFFER_OWNED_BY_DMA | MVGBE_RX_EN_INTERRUPT;
625 p_rxdesc_curr->buf_size = PKTSIZE_ALIGN;
626 p_rxdesc_curr->byte_cnt = 0;
628 rxdesc_curr_addr = (u32)&dmvgbe->p_rxdesc_curr;
629 writel((unsigned)p_rxdesc_curr->nxtdesc_p, rxdesc_curr_addr);
634 #if defined(CONFIG_PHYLIB)
635 static struct phy_device *__mvgbe_phy_init(struct udevice *dev,
637 phy_interface_t phy_interface,
640 struct phy_device *phydev;
642 /* Set phy address of the port */
643 miiphy_write(dev->name, MV_PHY_ADR_REQUEST, MV_PHY_ADR_REQUEST,
646 /* Make sure the selected PHY page is 0 before connecting */
647 miiphy_write(dev->name, phyid, MVGBE_PGADR_REG, 0);
649 phydev = phy_connect(bus, phyid, dev, phy_interface);
651 printf("phy_connect failed\n");
660 #endif /* CONFIG_PHYLIB */
662 static int mvgbe_alloc_buffers(struct mvgbe_device *dmvgbe)
664 dmvgbe->p_rxdesc = memalign(PKTALIGN,
665 MV_RXQ_DESC_ALIGNED_SIZE * RINGSZ + 1);
666 if (!dmvgbe->p_rxdesc)
669 dmvgbe->p_rxbuf = memalign(PKTALIGN,
670 RINGSZ * PKTSIZE_ALIGN + 1);
671 if (!dmvgbe->p_rxbuf)
674 dmvgbe->p_aligned_txbuf = memalign(8, PKTSIZE_ALIGN);
675 if (!dmvgbe->p_aligned_txbuf)
678 dmvgbe->p_txdesc = memalign(PKTALIGN, sizeof(struct mvgbe_txdesc) + 1);
679 if (!dmvgbe->p_txdesc)
685 free(dmvgbe->p_aligned_txbuf);
687 free(dmvgbe->p_rxbuf);
689 free(dmvgbe->p_rxdesc);
694 static int mvgbe_port_is_fixed_link(struct mvgbe_device *dmvgbe)
696 return dmvgbe->phyaddr > PHY_MAX_ADDR;
699 static int mvgbe_start(struct udevice *dev)
701 struct eth_pdata *pdata = dev_get_plat(dev);
702 struct mvgbe_device *dmvgbe = dev_get_priv(dev);
705 ret = __mvgbe_init(dmvgbe, pdata->enetaddr, dev->name);
709 if (!mvgbe_port_is_fixed_link(dmvgbe)) {
710 dmvgbe->phydev = __mvgbe_phy_init(dev, dmvgbe->bus,
711 dmvgbe->phy_interface,
720 static int mvgbe_send(struct udevice *dev, void *packet, int length)
722 struct mvgbe_device *dmvgbe = dev_get_priv(dev);
724 return __mvgbe_send(dmvgbe, packet, length);
727 static int mvgbe_recv(struct udevice *dev, int flags, uchar **packetp)
729 struct mvgbe_device *dmvgbe = dev_get_priv(dev);
731 return __mvgbe_recv(dmvgbe, packetp);
734 static void mvgbe_stop(struct udevice *dev)
736 struct mvgbe_device *dmvgbe = dev_get_priv(dev);
738 __mvgbe_halt(dmvgbe);
741 static int mvgbe_probe(struct udevice *dev)
743 struct eth_pdata *pdata = dev_get_plat(dev);
744 struct mvgbe_device *dmvgbe = dev_get_priv(dev);
748 ret = mvgbe_alloc_buffers(dmvgbe);
752 dmvgbe->regs = (void __iomem *)pdata->iobase;
756 printf("Failed to allocate MDIO bus\n");
760 bus->read = smi_reg_read;
761 bus->write = smi_reg_write;
762 snprintf(bus->name, sizeof(bus->name), dev->name);
766 ret = mdio_register(bus);
773 static const struct eth_ops mvgbe_ops = {
774 .start = mvgbe_start,
778 .write_hwaddr = mvgbe_write_hwaddr,
781 static int mvgbe_of_to_plat(struct udevice *dev)
783 struct eth_pdata *pdata = dev_get_plat(dev);
784 struct mvgbe_device *dmvgbe = dev_get_priv(dev);
785 void *blob = (void *)gd->fdt_blob;
786 int node = dev_of_offset(dev);
791 pdata->iobase = dev_read_addr(dev);
792 pdata->phy_interface = -1;
794 pnode = fdt_node_offset_by_compatible(blob, node,
795 "marvell,kirkwood-eth-port");
797 /* Get phy-mode / phy_interface from DT */
798 pdata->phy_interface = dev_read_phy_mode(dev);
799 if (pdata->phy_interface == PHY_INTERFACE_MODE_NA)
800 pdata->phy_interface = PHY_INTERFACE_MODE_GMII;
802 dmvgbe->phy_interface = pdata->phy_interface;
804 /* fetch 'fixed-link' property */
805 fl_node = fdt_subnode_offset(blob, pnode, "fixed-link");
806 if (fl_node != -FDT_ERR_NOTFOUND) {
807 /* set phy_addr to invalid value for fixed link */
808 dmvgbe->phyaddr = PHY_MAX_ADDR + 1;
809 dmvgbe->duplex = fdtdec_get_bool(blob, fl_node, "full-duplex");
810 dmvgbe->speed = fdtdec_get_int(blob, fl_node, "speed", 0);
812 /* Now read phyaddr from DT */
813 addr = fdtdec_lookup_phandle(blob, pnode, "phy-handle");
815 dmvgbe->phyaddr = fdtdec_get_int(blob, addr, "reg", 0);
821 static const struct udevice_id mvgbe_ids[] = {
822 { .compatible = "marvell,kirkwood-eth" },
826 U_BOOT_DRIVER(mvgbe) = {
829 .of_match = mvgbe_ids,
830 .of_to_plat = mvgbe_of_to_plat,
831 .probe = mvgbe_probe,
833 .priv_auto = sizeof(struct mvgbe_device),
834 .plat_auto = sizeof(struct eth_pdata),