1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2018 MediaTek Inc.
5 * Author: Weijie Gao <weijie.gao@mediatek.com>
6 * Author: Mark Lee <mark-mc.lee@mediatek.com>
20 #include <asm/cache.h>
23 #include <dm/device_compat.h>
24 #include <linux/delay.h>
25 #include <linux/err.h>
26 #include <linux/ioport.h>
27 #include <linux/mdio.h>
28 #include <linux/mii.h>
32 #define NUM_TX_DESC 24
33 #define NUM_RX_DESC 24
34 #define TX_TOTAL_BUF_SIZE (NUM_TX_DESC * PKTSIZE_ALIGN)
35 #define RX_TOTAL_BUF_SIZE (NUM_RX_DESC * PKTSIZE_ALIGN)
36 #define TOTAL_PKT_BUF_SIZE (TX_TOTAL_BUF_SIZE + RX_TOTAL_BUF_SIZE)
38 #define MT753X_NUM_PHYS 5
39 #define MT753X_NUM_PORTS 7
40 #define MT753X_DFL_SMI_ADDR 31
41 #define MT753X_SMI_ADDR_MASK 0x1f
43 #define MT753X_PHY_ADDR(base, addr) \
44 (((base) + (addr)) & 0x1f)
46 #define GDMA_FWD_TO_CPU \
52 (DP_PDMA << MYMAC_DP_S) | \
53 (DP_PDMA << BC_DP_S) | \
54 (DP_PDMA << MC_DP_S) | \
57 #define GDMA_FWD_DISCARD \
63 (DP_DISCARD << MYMAC_DP_S) | \
64 (DP_DISCARD << BC_DP_S) | \
65 (DP_DISCARD << MC_DP_S) | \
66 (DP_DISCARD << UN_DP_S))
68 struct pdma_rxd_info1 {
72 struct pdma_rxd_info2 {
81 struct pdma_rxd_info3 {
85 struct pdma_rxd_info4 {
99 struct pdma_rxd_info1 rxd_info1;
100 struct pdma_rxd_info2 rxd_info2;
101 struct pdma_rxd_info3 rxd_info3;
102 struct pdma_rxd_info4 rxd_info4;
105 struct pdma_txd_info1 {
109 struct pdma_txd_info2 {
118 struct pdma_txd_info3 {
122 struct pdma_txd_info4 {
133 struct pdma_txd_info1 txd_info1;
134 struct pdma_txd_info2 txd_info2;
135 struct pdma_txd_info3 txd_info3;
136 struct pdma_txd_info4 txd_info4;
152 struct mtk_eth_priv {
153 char pkt_pool[TOTAL_PKT_BUF_SIZE] __aligned(ARCH_DMA_MINALIGN);
155 struct pdma_txdesc *tx_ring_noc;
156 struct pdma_rxdesc *rx_ring_noc;
158 int rx_dma_owner_idx0;
159 int tx_cpu_owner_idx0;
161 void __iomem *fe_base;
162 void __iomem *gmac_base;
163 void __iomem *sgmii_base;
165 struct regmap *ethsys_regmap;
167 struct mii_dev *mdio_bus;
168 int (*mii_read)(struct mtk_eth_priv *priv, u8 phy, u8 reg);
169 int (*mii_write)(struct mtk_eth_priv *priv, u8 phy, u8 reg, u16 val);
170 int (*mmd_read)(struct mtk_eth_priv *priv, u8 addr, u8 devad, u16 reg);
171 int (*mmd_write)(struct mtk_eth_priv *priv, u8 addr, u8 devad, u16 reg,
180 struct phy_device *phydev;
185 int (*switch_init)(struct mtk_eth_priv *priv);
189 struct gpio_desc rst_gpio;
192 struct reset_ctl rst_fe;
193 struct reset_ctl rst_mcm;
196 static void mtk_pdma_write(struct mtk_eth_priv *priv, u32 reg, u32 val)
198 writel(val, priv->fe_base + PDMA_BASE + reg);
201 static void mtk_pdma_rmw(struct mtk_eth_priv *priv, u32 reg, u32 clr,
204 clrsetbits_le32(priv->fe_base + PDMA_BASE + reg, clr, set);
207 static void mtk_gdma_write(struct mtk_eth_priv *priv, int no, u32 reg,
213 gdma_base = GDMA2_BASE;
215 gdma_base = GDMA1_BASE;
217 writel(val, priv->fe_base + gdma_base + reg);
220 static u32 mtk_gmac_read(struct mtk_eth_priv *priv, u32 reg)
222 return readl(priv->gmac_base + reg);
225 static void mtk_gmac_write(struct mtk_eth_priv *priv, u32 reg, u32 val)
227 writel(val, priv->gmac_base + reg);
230 static void mtk_gmac_rmw(struct mtk_eth_priv *priv, u32 reg, u32 clr, u32 set)
232 clrsetbits_le32(priv->gmac_base + reg, clr, set);
235 static void mtk_ethsys_rmw(struct mtk_eth_priv *priv, u32 reg, u32 clr,
240 regmap_read(priv->ethsys_regmap, reg, &val);
243 regmap_write(priv->ethsys_regmap, reg, val);
246 /* Direct MDIO clause 22/45 access via SoC */
247 static int mtk_mii_rw(struct mtk_eth_priv *priv, u8 phy, u8 reg, u16 data,
253 val = (st << MDIO_ST_S) |
254 ((cmd << MDIO_CMD_S) & MDIO_CMD_M) |
255 (((u32)phy << MDIO_PHY_ADDR_S) & MDIO_PHY_ADDR_M) |
256 (((u32)reg << MDIO_REG_ADDR_S) & MDIO_REG_ADDR_M);
258 if (cmd == MDIO_CMD_WRITE)
259 val |= data & MDIO_RW_DATA_M;
261 mtk_gmac_write(priv, GMAC_PIAC_REG, val | PHY_ACS_ST);
263 ret = wait_for_bit_le32(priv->gmac_base + GMAC_PIAC_REG,
264 PHY_ACS_ST, 0, 5000, 0);
266 pr_warn("MDIO access timeout\n");
270 if (cmd == MDIO_CMD_READ) {
271 val = mtk_gmac_read(priv, GMAC_PIAC_REG);
272 return val & MDIO_RW_DATA_M;
278 /* Direct MDIO clause 22 read via SoC */
279 static int mtk_mii_read(struct mtk_eth_priv *priv, u8 phy, u8 reg)
281 return mtk_mii_rw(priv, phy, reg, 0, MDIO_CMD_READ, MDIO_ST_C22);
284 /* Direct MDIO clause 22 write via SoC */
285 static int mtk_mii_write(struct mtk_eth_priv *priv, u8 phy, u8 reg, u16 data)
287 return mtk_mii_rw(priv, phy, reg, data, MDIO_CMD_WRITE, MDIO_ST_C22);
290 /* Direct MDIO clause 45 read via SoC */
291 static int mtk_mmd_read(struct mtk_eth_priv *priv, u8 addr, u8 devad, u16 reg)
295 ret = mtk_mii_rw(priv, addr, devad, reg, MDIO_CMD_ADDR, MDIO_ST_C45);
299 return mtk_mii_rw(priv, addr, devad, 0, MDIO_CMD_READ_C45,
303 /* Direct MDIO clause 45 write via SoC */
304 static int mtk_mmd_write(struct mtk_eth_priv *priv, u8 addr, u8 devad,
309 ret = mtk_mii_rw(priv, addr, devad, reg, MDIO_CMD_ADDR, MDIO_ST_C45);
313 return mtk_mii_rw(priv, addr, devad, val, MDIO_CMD_WRITE,
317 /* Indirect MDIO clause 45 read via MII registers */
318 static int mtk_mmd_ind_read(struct mtk_eth_priv *priv, u8 addr, u8 devad,
323 ret = priv->mii_write(priv, addr, MII_MMD_ACC_CTL_REG,
324 (MMD_ADDR << MMD_CMD_S) |
325 ((devad << MMD_DEVAD_S) & MMD_DEVAD_M));
329 ret = priv->mii_write(priv, addr, MII_MMD_ADDR_DATA_REG, reg);
333 ret = priv->mii_write(priv, addr, MII_MMD_ACC_CTL_REG,
334 (MMD_DATA << MMD_CMD_S) |
335 ((devad << MMD_DEVAD_S) & MMD_DEVAD_M));
339 return priv->mii_read(priv, addr, MII_MMD_ADDR_DATA_REG);
342 /* Indirect MDIO clause 45 write via MII registers */
343 static int mtk_mmd_ind_write(struct mtk_eth_priv *priv, u8 addr, u8 devad,
348 ret = priv->mii_write(priv, addr, MII_MMD_ACC_CTL_REG,
349 (MMD_ADDR << MMD_CMD_S) |
350 ((devad << MMD_DEVAD_S) & MMD_DEVAD_M));
354 ret = priv->mii_write(priv, addr, MII_MMD_ADDR_DATA_REG, reg);
358 ret = priv->mii_write(priv, addr, MII_MMD_ACC_CTL_REG,
359 (MMD_DATA << MMD_CMD_S) |
360 ((devad << MMD_DEVAD_S) & MMD_DEVAD_M));
364 return priv->mii_write(priv, addr, MII_MMD_ADDR_DATA_REG, val);
368 * MT7530 Internal Register Address Bits
369 * -------------------------------------------------------------------
370 * | 15 14 13 12 11 10 9 8 7 6 | 5 4 3 2 | 1 0 |
371 * |----------------------------------------|---------------|--------|
372 * | Page Address | Reg Address | Unused |
373 * -------------------------------------------------------------------
376 static int mt753x_reg_read(struct mtk_eth_priv *priv, u32 reg, u32 *data)
378 int ret, low_word, high_word;
380 /* Write page address */
381 ret = mtk_mii_write(priv, priv->mt753x_smi_addr, 0x1f, reg >> 6);
386 low_word = mtk_mii_read(priv, priv->mt753x_smi_addr, (reg >> 2) & 0xf);
391 high_word = mtk_mii_read(priv, priv->mt753x_smi_addr, 0x10);
396 *data = ((u32)high_word << 16) | (low_word & 0xffff);
401 static int mt753x_reg_write(struct mtk_eth_priv *priv, u32 reg, u32 data)
405 /* Write page address */
406 ret = mtk_mii_write(priv, priv->mt753x_smi_addr, 0x1f, reg >> 6);
411 ret = mtk_mii_write(priv, priv->mt753x_smi_addr, (reg >> 2) & 0xf,
416 /* Write high word */
417 return mtk_mii_write(priv, priv->mt753x_smi_addr, 0x10, data >> 16);
420 static void mt753x_reg_rmw(struct mtk_eth_priv *priv, u32 reg, u32 clr,
425 mt753x_reg_read(priv, reg, &val);
428 mt753x_reg_write(priv, reg, val);
431 /* Indirect MDIO clause 22/45 access */
432 static int mt7531_mii_rw(struct mtk_eth_priv *priv, int phy, int reg, u16 data,
439 val = (st << MDIO_ST_S) |
440 ((cmd << MDIO_CMD_S) & MDIO_CMD_M) |
441 ((phy << MDIO_PHY_ADDR_S) & MDIO_PHY_ADDR_M) |
442 ((reg << MDIO_REG_ADDR_S) & MDIO_REG_ADDR_M);
444 if (cmd == MDIO_CMD_WRITE || cmd == MDIO_CMD_ADDR)
445 val |= data & MDIO_RW_DATA_M;
447 mt753x_reg_write(priv, MT7531_PHY_IAC, val | PHY_ACS_ST);
450 timeout = get_timer(0);
452 mt753x_reg_read(priv, MT7531_PHY_IAC, &val);
454 if ((val & PHY_ACS_ST) == 0)
457 if (get_timer(timeout) > timeout_ms)
461 if (cmd == MDIO_CMD_READ || cmd == MDIO_CMD_READ_C45) {
462 mt753x_reg_read(priv, MT7531_PHY_IAC, &val);
463 ret = val & MDIO_RW_DATA_M;
469 static int mt7531_mii_ind_read(struct mtk_eth_priv *priv, u8 phy, u8 reg)
473 if (phy >= MT753X_NUM_PHYS)
476 phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, phy);
478 return mt7531_mii_rw(priv, phy_addr, reg, 0, MDIO_CMD_READ,
482 static int mt7531_mii_ind_write(struct mtk_eth_priv *priv, u8 phy, u8 reg,
487 if (phy >= MT753X_NUM_PHYS)
490 phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, phy);
492 return mt7531_mii_rw(priv, phy_addr, reg, val, MDIO_CMD_WRITE,
496 int mt7531_mmd_ind_read(struct mtk_eth_priv *priv, u8 addr, u8 devad, u16 reg)
501 if (addr >= MT753X_NUM_PHYS)
504 phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, addr);
506 ret = mt7531_mii_rw(priv, phy_addr, devad, reg, MDIO_CMD_ADDR,
511 return mt7531_mii_rw(priv, phy_addr, devad, 0, MDIO_CMD_READ_C45,
515 static int mt7531_mmd_ind_write(struct mtk_eth_priv *priv, u8 addr, u8 devad,
521 if (addr >= MT753X_NUM_PHYS)
524 phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, addr);
526 ret = mt7531_mii_rw(priv, phy_addr, devad, reg, MDIO_CMD_ADDR,
531 return mt7531_mii_rw(priv, phy_addr, devad, val, MDIO_CMD_WRITE,
535 static int mtk_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
537 struct mtk_eth_priv *priv = bus->priv;
540 return priv->mii_read(priv, addr, reg);
542 return priv->mmd_read(priv, addr, devad, reg);
545 static int mtk_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
548 struct mtk_eth_priv *priv = bus->priv;
551 return priv->mii_write(priv, addr, reg, val);
553 return priv->mmd_write(priv, addr, devad, reg, val);
556 static int mtk_mdio_register(struct udevice *dev)
558 struct mtk_eth_priv *priv = dev_get_priv(dev);
559 struct mii_dev *mdio_bus = mdio_alloc();
565 /* Assign MDIO access APIs according to the switch/phy */
568 priv->mii_read = mtk_mii_read;
569 priv->mii_write = mtk_mii_write;
570 priv->mmd_read = mtk_mmd_ind_read;
571 priv->mmd_write = mtk_mmd_ind_write;
574 priv->mii_read = mt7531_mii_ind_read;
575 priv->mii_write = mt7531_mii_ind_write;
576 priv->mmd_read = mt7531_mmd_ind_read;
577 priv->mmd_write = mt7531_mmd_ind_write;
580 priv->mii_read = mtk_mii_read;
581 priv->mii_write = mtk_mii_write;
582 priv->mmd_read = mtk_mmd_read;
583 priv->mmd_write = mtk_mmd_write;
586 mdio_bus->read = mtk_mdio_read;
587 mdio_bus->write = mtk_mdio_write;
588 snprintf(mdio_bus->name, sizeof(mdio_bus->name), dev->name);
590 mdio_bus->priv = (void *)priv;
592 ret = mdio_register(mdio_bus);
597 priv->mdio_bus = mdio_bus;
602 static int mt753x_core_reg_read(struct mtk_eth_priv *priv, u32 reg)
604 u8 phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, 0);
606 return priv->mmd_read(priv, phy_addr, 0x1f, reg);
609 static void mt753x_core_reg_write(struct mtk_eth_priv *priv, u32 reg, u32 val)
611 u8 phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, 0);
613 priv->mmd_write(priv, phy_addr, 0x1f, reg, val);
616 static int mt7530_pad_clk_setup(struct mtk_eth_priv *priv, int mode)
618 u32 ncpo1, ssc_delta;
621 case PHY_INTERFACE_MODE_RGMII:
626 printf("error: xMII mode %d not supported\n", mode);
630 /* Disable MT7530 core clock */
631 mt753x_core_reg_write(priv, CORE_TRGMII_GSW_CLK_CG, 0);
633 /* Disable MT7530 PLL */
634 mt753x_core_reg_write(priv, CORE_GSWPLL_GRP1,
635 (2 << RG_GSWPLL_POSDIV_200M_S) |
636 (32 << RG_GSWPLL_FBKDIV_200M_S));
638 /* For MT7530 core clock = 500Mhz */
639 mt753x_core_reg_write(priv, CORE_GSWPLL_GRP2,
640 (1 << RG_GSWPLL_POSDIV_500M_S) |
641 (25 << RG_GSWPLL_FBKDIV_500M_S));
643 /* Enable MT7530 PLL */
644 mt753x_core_reg_write(priv, CORE_GSWPLL_GRP1,
645 (2 << RG_GSWPLL_POSDIV_200M_S) |
646 (32 << RG_GSWPLL_FBKDIV_200M_S) |
651 mt753x_core_reg_write(priv, CORE_TRGMII_GSW_CLK_CG, REG_GSWCK_EN);
653 /* Setup the MT7530 TRGMII Tx Clock */
654 mt753x_core_reg_write(priv, CORE_PLL_GROUP5, ncpo1);
655 mt753x_core_reg_write(priv, CORE_PLL_GROUP6, 0);
656 mt753x_core_reg_write(priv, CORE_PLL_GROUP10, ssc_delta);
657 mt753x_core_reg_write(priv, CORE_PLL_GROUP11, ssc_delta);
658 mt753x_core_reg_write(priv, CORE_PLL_GROUP4, RG_SYSPLL_DDSFBK_EN |
659 RG_SYSPLL_BIAS_EN | RG_SYSPLL_BIAS_LPF_EN);
661 mt753x_core_reg_write(priv, CORE_PLL_GROUP2,
662 RG_SYSPLL_EN_NORMAL | RG_SYSPLL_VODEN |
663 (1 << RG_SYSPLL_POSDIV_S));
665 mt753x_core_reg_write(priv, CORE_PLL_GROUP7,
666 RG_LCDDS_PCW_NCPO_CHG | (3 << RG_LCCDS_C_S) |
667 RG_LCDDS_PWDB | RG_LCDDS_ISO_EN);
669 /* Enable MT7530 core clock */
670 mt753x_core_reg_write(priv, CORE_TRGMII_GSW_CLK_CG,
671 REG_GSWCK_EN | REG_TRGMIICK_EN);
676 static int mt7530_setup(struct mtk_eth_priv *priv)
678 u16 phy_addr, phy_val;
682 if (priv->soc != SOC_MT7621) {
683 /* Select 250MHz clk for RGMII mode */
684 mtk_ethsys_rmw(priv, ETHSYS_CLKCFG0_REG,
685 ETHSYS_TRGMII_CLK_SEL362_5, 0);
692 /* Modify HWTRAP first to allow direct access to internal PHYs */
693 mt753x_reg_read(priv, HWTRAP_REG, &val);
696 mt753x_reg_write(priv, MHWTRAP_REG, val);
698 /* Calculate the phy base address */
699 val = ((val & SMI_ADDR_M) >> SMI_ADDR_S) << 3;
700 priv->mt753x_phy_base = (val | 0x7) + 1;
703 for (i = 0; i < MT753X_NUM_PHYS; i++) {
704 phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, i);
705 phy_val = priv->mii_read(priv, phy_addr, MII_BMCR);
706 phy_val |= BMCR_PDOWN;
707 priv->mii_write(priv, phy_addr, MII_BMCR, phy_val);
710 /* Force MAC link down before reset */
711 mt753x_reg_write(priv, PMCR_REG(5), FORCE_MODE);
712 mt753x_reg_write(priv, PMCR_REG(6), FORCE_MODE);
715 mt753x_reg_write(priv, SYS_CTRL_REG, SW_SYS_RST | SW_REG_RST);
718 val = (IPG_96BIT_WITH_SHORT_IPG << IPG_CFG_S) |
719 MAC_MODE | FORCE_MODE |
720 MAC_TX_EN | MAC_RX_EN |
721 BKOFF_EN | BACKPR_EN |
722 (SPEED_1000M << FORCE_SPD_S) |
723 FORCE_DPX | FORCE_LINK;
725 /* MT7530 Port6: Forced 1000M/FD, FC disabled */
726 mt753x_reg_write(priv, PMCR_REG(6), val);
728 /* MT7530 Port5: Forced link down */
729 mt753x_reg_write(priv, PMCR_REG(5), FORCE_MODE);
731 /* MT7530 Port6: Set to RGMII */
732 mt753x_reg_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_M, P6_INTF_MODE_RGMII);
734 /* Hardware Trap: Enable Port6, Disable Port5 */
735 mt753x_reg_read(priv, HWTRAP_REG, &val);
736 val |= CHG_TRAP | LOOPDET_DIS | P5_INTF_DIS |
737 (P5_INTF_SEL_GMAC5 << P5_INTF_SEL_S) |
738 (P5_INTF_MODE_RGMII << P5_INTF_MODE_S);
739 val &= ~(C_MDIO_BPS | P6_INTF_DIS);
740 mt753x_reg_write(priv, MHWTRAP_REG, val);
742 /* Setup switch core pll */
743 mt7530_pad_clk_setup(priv, priv->phy_interface);
745 /* Lower Tx Driving for TRGMII path */
746 for (i = 0 ; i < NUM_TRGMII_CTRL ; i++)
747 mt753x_reg_write(priv, MT7530_TRGMII_TD_ODT(i),
748 (txdrv << TD_DM_DRVP_S) |
749 (txdrv << TD_DM_DRVN_S));
751 for (i = 0 ; i < NUM_TRGMII_CTRL; i++)
752 mt753x_reg_rmw(priv, MT7530_TRGMII_RD(i), RD_TAP_M, 16);
755 for (i = 0; i < MT753X_NUM_PHYS; i++) {
756 phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, i);
757 phy_val = priv->mii_read(priv, phy_addr, MII_BMCR);
758 phy_val &= ~BMCR_PDOWN;
759 priv->mii_write(priv, phy_addr, MII_BMCR, phy_val);
765 static void mt7531_core_pll_setup(struct mtk_eth_priv *priv, int mcm)
767 /* Step 1 : Disable MT7531 COREPLL */
768 mt753x_reg_rmw(priv, MT7531_PLLGP_EN, EN_COREPLL, 0);
770 /* Step 2: switch to XTAL output */
771 mt753x_reg_rmw(priv, MT7531_PLLGP_EN, SW_CLKSW, SW_CLKSW);
773 mt753x_reg_rmw(priv, MT7531_PLLGP_CR0, RG_COREPLL_EN, 0);
775 /* Step 3: disable PLLGP and enable program PLLGP */
776 mt753x_reg_rmw(priv, MT7531_PLLGP_EN, SW_PLLGP, SW_PLLGP);
778 /* Step 4: program COREPLL output frequency to 500MHz */
779 mt753x_reg_rmw(priv, MT7531_PLLGP_CR0, RG_COREPLL_POSDIV_M,
780 2 << RG_COREPLL_POSDIV_S);
783 /* Currently, support XTAL 25Mhz only */
784 mt753x_reg_rmw(priv, MT7531_PLLGP_CR0, RG_COREPLL_SDM_PCW_M,
785 0x140000 << RG_COREPLL_SDM_PCW_S);
787 /* Set feedback divide ratio update signal to high */
788 mt753x_reg_rmw(priv, MT7531_PLLGP_CR0, RG_COREPLL_SDM_PCW_CHG,
789 RG_COREPLL_SDM_PCW_CHG);
791 /* Wait for at least 16 XTAL clocks */
794 /* Step 5: set feedback divide ratio update signal to low */
795 mt753x_reg_rmw(priv, MT7531_PLLGP_CR0, RG_COREPLL_SDM_PCW_CHG, 0);
797 /* add enable 325M clock for SGMII */
798 mt753x_reg_write(priv, MT7531_ANA_PLLGP_CR5, 0xad0000);
800 /* add enable 250SSC clock for RGMII */
801 mt753x_reg_write(priv, MT7531_ANA_PLLGP_CR2, 0x4f40000);
803 /*Step 6: Enable MT7531 PLL */
804 mt753x_reg_rmw(priv, MT7531_PLLGP_CR0, RG_COREPLL_EN, RG_COREPLL_EN);
806 mt753x_reg_rmw(priv, MT7531_PLLGP_EN, EN_COREPLL, EN_COREPLL);
811 static int mt7531_port_sgmii_init(struct mtk_eth_priv *priv,
814 if (port != 5 && port != 6) {
815 printf("mt7531: port %d is not a SGMII port\n", port);
819 /* Set SGMII GEN2 speed(2.5G) */
820 mt753x_reg_rmw(priv, MT7531_PHYA_CTRL_SIGNAL3(port),
821 SGMSYS_SPEED_2500, SGMSYS_SPEED_2500);
823 /* Disable SGMII AN */
824 mt753x_reg_rmw(priv, MT7531_PCS_CONTROL_1(port),
827 /* SGMII force mode setting */
828 mt753x_reg_write(priv, MT7531_SGMII_MODE(port), SGMII_FORCE_MODE);
830 /* Release PHYA power down state */
831 mt753x_reg_rmw(priv, MT7531_QPHY_PWR_STATE_CTRL(port),
837 static int mt7531_port_rgmii_init(struct mtk_eth_priv *priv, u32 port)
842 printf("error: RGMII mode is not available for port %d\n",
847 mt753x_reg_read(priv, MT7531_CLKGEN_CTRL, &val);
850 val |= GP_MODE_RGMII << GP_MODE_S;
851 val |= TXCLK_NO_REVERSE;
852 val |= RXCLK_NO_DELAY;
853 val &= ~CLK_SKEW_IN_M;
854 val |= CLK_SKEW_IN_NO_CHANGE << CLK_SKEW_IN_S;
855 val &= ~CLK_SKEW_OUT_M;
856 val |= CLK_SKEW_OUT_NO_CHANGE << CLK_SKEW_OUT_S;
857 mt753x_reg_write(priv, MT7531_CLKGEN_CTRL, val);
862 static void mt7531_phy_setting(struct mtk_eth_priv *priv)
867 for (i = 0; i < MT753X_NUM_PHYS; i++) {
868 /* Enable HW auto downshift */
869 priv->mii_write(priv, i, 0x1f, 0x1);
870 val = priv->mii_read(priv, i, PHY_EXT_REG_14);
871 val |= PHY_EN_DOWN_SHFIT;
872 priv->mii_write(priv, i, PHY_EXT_REG_14, val);
874 /* PHY link down power saving enable */
875 val = priv->mii_read(priv, i, PHY_EXT_REG_17);
876 val |= PHY_LINKDOWN_POWER_SAVING_EN;
877 priv->mii_write(priv, i, PHY_EXT_REG_17, val);
879 val = priv->mmd_read(priv, i, 0x1e, PHY_DEV1E_REG_0C6);
880 val &= ~PHY_POWER_SAVING_M;
881 val |= PHY_POWER_SAVING_TX << PHY_POWER_SAVING_S;
882 priv->mmd_write(priv, i, 0x1e, PHY_DEV1E_REG_0C6, val);
886 static int mt7531_setup(struct mtk_eth_priv *priv)
888 u16 phy_addr, phy_val;
894 priv->mt753x_phy_base = (priv->mt753x_smi_addr + 1) &
895 MT753X_SMI_ADDR_MASK;
898 for (i = 0; i < MT753X_NUM_PHYS; i++) {
899 phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, i);
900 phy_val = priv->mii_read(priv, phy_addr, MII_BMCR);
901 phy_val |= BMCR_PDOWN;
902 priv->mii_write(priv, phy_addr, MII_BMCR, phy_val);
905 /* Force MAC link down before reset */
906 mt753x_reg_write(priv, PMCR_REG(5), FORCE_MODE_LNK);
907 mt753x_reg_write(priv, PMCR_REG(6), FORCE_MODE_LNK);
909 /* Switch soft reset */
910 mt753x_reg_write(priv, SYS_CTRL_REG, SW_SYS_RST | SW_REG_RST);
913 /* Enable MDC input Schmitt Trigger */
914 mt753x_reg_rmw(priv, MT7531_SMT0_IOLB, SMT_IOLB_5_SMI_MDC_EN,
915 SMT_IOLB_5_SMI_MDC_EN);
917 mt7531_core_pll_setup(priv, priv->mcm);
919 mt753x_reg_read(priv, MT7531_TOP_SIG_SR, &val);
920 port5_sgmii = !!(val & PAD_DUAL_SGMII_EN);
922 /* port5 support either RGMII or SGMII, port6 only support SGMII. */
923 switch (priv->phy_interface) {
924 case PHY_INTERFACE_MODE_RGMII:
926 mt7531_port_rgmii_init(priv, 5);
928 case PHY_INTERFACE_MODE_SGMII:
929 mt7531_port_sgmii_init(priv, 6);
931 mt7531_port_sgmii_init(priv, 5);
937 pmcr = MT7531_FORCE_MODE |
938 (IPG_96BIT_WITH_SHORT_IPG << IPG_CFG_S) |
939 MAC_MODE | MAC_TX_EN | MAC_RX_EN |
940 BKOFF_EN | BACKPR_EN |
941 FORCE_RX_FC | FORCE_TX_FC |
942 (SPEED_1000M << FORCE_SPD_S) | FORCE_DPX |
945 mt753x_reg_write(priv, PMCR_REG(5), pmcr);
946 mt753x_reg_write(priv, PMCR_REG(6), pmcr);
949 for (i = 0; i < MT753X_NUM_PHYS; i++) {
950 phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, i);
951 phy_val = priv->mii_read(priv, phy_addr, MII_BMCR);
952 phy_val &= ~BMCR_PDOWN;
953 priv->mii_write(priv, phy_addr, MII_BMCR, phy_val);
956 mt7531_phy_setting(priv);
958 /* Enable Internal PHYs */
959 val = mt753x_core_reg_read(priv, CORE_PLL_GROUP4);
960 val |= MT7531_BYPASS_MODE;
961 val &= ~MT7531_POWER_ON_OFF;
962 mt753x_core_reg_write(priv, CORE_PLL_GROUP4, val);
967 int mt753x_switch_init(struct mtk_eth_priv *priv)
972 /* Global reset switch */
974 reset_assert(&priv->rst_mcm);
976 reset_deassert(&priv->rst_mcm);
978 } else if (dm_gpio_is_valid(&priv->rst_gpio)) {
979 dm_gpio_set_value(&priv->rst_gpio, 0);
981 dm_gpio_set_value(&priv->rst_gpio, 1);
985 ret = priv->switch_init(priv);
989 /* Set port isolation */
990 for (i = 0; i < MT753X_NUM_PORTS; i++) {
991 /* Set port matrix mode */
993 mt753x_reg_write(priv, PCR_REG(i),
994 (0x40 << PORT_MATRIX_S));
996 mt753x_reg_write(priv, PCR_REG(i),
997 (0x3f << PORT_MATRIX_S));
999 /* Set port mode to user port */
1000 mt753x_reg_write(priv, PVC_REG(i),
1001 (0x8100 << STAG_VPID_S) |
1002 (VLAN_ATTR_USER << VLAN_ATTR_S));
1008 static void mtk_phy_link_adjust(struct mtk_eth_priv *priv)
1010 u16 lcl_adv = 0, rmt_adv = 0;
1014 mcr = (IPG_96BIT_WITH_SHORT_IPG << IPG_CFG_S) |
1015 (MAC_RX_PKT_LEN_1536 << MAC_RX_PKT_LEN_S) |
1016 MAC_MODE | FORCE_MODE |
1017 MAC_TX_EN | MAC_RX_EN |
1018 BKOFF_EN | BACKPR_EN;
1020 switch (priv->phydev->speed) {
1022 mcr |= (SPEED_10M << FORCE_SPD_S);
1025 mcr |= (SPEED_100M << FORCE_SPD_S);
1028 mcr |= (SPEED_1000M << FORCE_SPD_S);
1032 if (priv->phydev->link)
1035 if (priv->phydev->duplex) {
1038 if (priv->phydev->pause)
1039 rmt_adv = LPA_PAUSE_CAP;
1040 if (priv->phydev->asym_pause)
1041 rmt_adv |= LPA_PAUSE_ASYM;
1043 if (priv->phydev->advertising & ADVERTISED_Pause)
1044 lcl_adv |= ADVERTISE_PAUSE_CAP;
1045 if (priv->phydev->advertising & ADVERTISED_Asym_Pause)
1046 lcl_adv |= ADVERTISE_PAUSE_ASYM;
1048 flowctrl = mii_resolve_flowctrl_fdx(lcl_adv, rmt_adv);
1050 if (flowctrl & FLOW_CTRL_TX)
1052 if (flowctrl & FLOW_CTRL_RX)
1055 debug("rx pause %s, tx pause %s\n",
1056 flowctrl & FLOW_CTRL_RX ? "enabled" : "disabled",
1057 flowctrl & FLOW_CTRL_TX ? "enabled" : "disabled");
1060 mtk_gmac_write(priv, GMAC_PORT_MCR(priv->gmac_id), mcr);
1063 static int mtk_phy_start(struct mtk_eth_priv *priv)
1065 struct phy_device *phydev = priv->phydev;
1068 ret = phy_startup(phydev);
1071 debug("Could not initialize PHY %s\n", phydev->dev->name);
1075 if (!phydev->link) {
1076 debug("%s: link down.\n", phydev->dev->name);
1080 mtk_phy_link_adjust(priv);
1082 debug("Speed: %d, %s duplex%s\n", phydev->speed,
1083 (phydev->duplex) ? "full" : "half",
1084 (phydev->port == PORT_FIBRE) ? ", fiber mode" : "");
1089 static int mtk_phy_probe(struct udevice *dev)
1091 struct mtk_eth_priv *priv = dev_get_priv(dev);
1092 struct phy_device *phydev;
1094 phydev = phy_connect(priv->mdio_bus, priv->phy_addr, dev,
1095 priv->phy_interface);
1099 phydev->supported &= PHY_GBIT_FEATURES;
1100 phydev->advertising = phydev->supported;
1102 priv->phydev = phydev;
1108 static void mtk_sgmii_init(struct mtk_eth_priv *priv)
1110 /* Set SGMII GEN2 speed(2.5G) */
1111 clrsetbits_le32(priv->sgmii_base + ((priv->soc == SOC_MT7622) ?
1112 SGMSYS_GEN2_SPEED : SGMSYS_GEN2_SPEED_V2),
1113 SGMSYS_SPEED_2500, SGMSYS_SPEED_2500);
1115 /* Disable SGMII AN */
1116 clrsetbits_le32(priv->sgmii_base + SGMSYS_PCS_CONTROL_1,
1117 SGMII_AN_ENABLE, 0);
1119 /* SGMII force mode setting */
1120 writel(SGMII_FORCE_MODE, priv->sgmii_base + SGMSYS_SGMII_MODE);
1122 /* Release PHYA power down state */
1123 clrsetbits_le32(priv->sgmii_base + SGMSYS_QPHY_PWR_STATE_CTRL,
1127 static void mtk_mac_init(struct mtk_eth_priv *priv)
1132 switch (priv->phy_interface) {
1133 case PHY_INTERFACE_MODE_RGMII_RXID:
1134 case PHY_INTERFACE_MODE_RGMII:
1135 ge_mode = GE_MODE_RGMII;
1137 case PHY_INTERFACE_MODE_SGMII:
1138 ge_mode = GE_MODE_RGMII;
1139 mtk_ethsys_rmw(priv, ETHSYS_SYSCFG0_REG, SYSCFG0_SGMII_SEL_M,
1140 SYSCFG0_SGMII_SEL(priv->gmac_id));
1141 mtk_sgmii_init(priv);
1143 case PHY_INTERFACE_MODE_MII:
1144 case PHY_INTERFACE_MODE_GMII:
1145 ge_mode = GE_MODE_MII;
1147 case PHY_INTERFACE_MODE_RMII:
1148 ge_mode = GE_MODE_RMII;
1154 /* set the gmac to the right mode */
1155 mtk_ethsys_rmw(priv, ETHSYS_SYSCFG0_REG,
1156 SYSCFG0_GE_MODE_M << SYSCFG0_GE_MODE_S(priv->gmac_id),
1157 ge_mode << SYSCFG0_GE_MODE_S(priv->gmac_id));
1159 if (priv->force_mode) {
1160 mcr = (IPG_96BIT_WITH_SHORT_IPG << IPG_CFG_S) |
1161 (MAC_RX_PKT_LEN_1536 << MAC_RX_PKT_LEN_S) |
1162 MAC_MODE | FORCE_MODE |
1163 MAC_TX_EN | MAC_RX_EN |
1164 BKOFF_EN | BACKPR_EN |
1167 switch (priv->speed) {
1169 mcr |= SPEED_10M << FORCE_SPD_S;
1172 mcr |= SPEED_100M << FORCE_SPD_S;
1175 mcr |= SPEED_1000M << FORCE_SPD_S;
1182 mtk_gmac_write(priv, GMAC_PORT_MCR(priv->gmac_id), mcr);
1185 if (priv->soc == SOC_MT7623) {
1186 /* Lower Tx Driving for TRGMII path */
1187 for (i = 0 ; i < NUM_TRGMII_CTRL; i++)
1188 mtk_gmac_write(priv, GMAC_TRGMII_TD_ODT(i),
1189 (8 << TD_DM_DRVP_S) |
1190 (8 << TD_DM_DRVN_S));
1192 mtk_gmac_rmw(priv, GMAC_TRGMII_RCK_CTRL, 0,
1193 RX_RST | RXC_DQSISEL);
1194 mtk_gmac_rmw(priv, GMAC_TRGMII_RCK_CTRL, RX_RST, 0);
1198 static void mtk_eth_fifo_init(struct mtk_eth_priv *priv)
1200 char *pkt_base = priv->pkt_pool;
1203 mtk_pdma_rmw(priv, PDMA_GLO_CFG_REG, 0xffff0000, 0);
1206 memset(priv->tx_ring_noc, 0, NUM_TX_DESC * sizeof(struct pdma_txdesc));
1207 memset(priv->rx_ring_noc, 0, NUM_RX_DESC * sizeof(struct pdma_rxdesc));
1208 memset(priv->pkt_pool, 0, TOTAL_PKT_BUF_SIZE);
1210 flush_dcache_range((ulong)pkt_base,
1211 (ulong)(pkt_base + TOTAL_PKT_BUF_SIZE));
1213 priv->rx_dma_owner_idx0 = 0;
1214 priv->tx_cpu_owner_idx0 = 0;
1216 for (i = 0; i < NUM_TX_DESC; i++) {
1217 priv->tx_ring_noc[i].txd_info2.LS0 = 1;
1218 priv->tx_ring_noc[i].txd_info2.DDONE = 1;
1219 priv->tx_ring_noc[i].txd_info4.FPORT = priv->gmac_id + 1;
1221 priv->tx_ring_noc[i].txd_info1.SDP0 = virt_to_phys(pkt_base);
1222 pkt_base += PKTSIZE_ALIGN;
1225 for (i = 0; i < NUM_RX_DESC; i++) {
1226 priv->rx_ring_noc[i].rxd_info2.PLEN0 = PKTSIZE_ALIGN;
1227 priv->rx_ring_noc[i].rxd_info1.PDP0 = virt_to_phys(pkt_base);
1228 pkt_base += PKTSIZE_ALIGN;
1231 mtk_pdma_write(priv, TX_BASE_PTR_REG(0),
1232 virt_to_phys(priv->tx_ring_noc));
1233 mtk_pdma_write(priv, TX_MAX_CNT_REG(0), NUM_TX_DESC);
1234 mtk_pdma_write(priv, TX_CTX_IDX_REG(0), priv->tx_cpu_owner_idx0);
1236 mtk_pdma_write(priv, RX_BASE_PTR_REG(0),
1237 virt_to_phys(priv->rx_ring_noc));
1238 mtk_pdma_write(priv, RX_MAX_CNT_REG(0), NUM_RX_DESC);
1239 mtk_pdma_write(priv, RX_CRX_IDX_REG(0), NUM_RX_DESC - 1);
1241 mtk_pdma_write(priv, PDMA_RST_IDX_REG, RST_DTX_IDX0 | RST_DRX_IDX0);
1244 static int mtk_eth_start(struct udevice *dev)
1246 struct mtk_eth_priv *priv = dev_get_priv(dev);
1250 reset_assert(&priv->rst_fe);
1252 reset_deassert(&priv->rst_fe);
1255 /* Packets forward to PDMA */
1256 mtk_gdma_write(priv, priv->gmac_id, GDMA_IG_CTRL_REG, GDMA_FWD_TO_CPU);
1258 if (priv->gmac_id == 0)
1259 mtk_gdma_write(priv, 1, GDMA_IG_CTRL_REG, GDMA_FWD_DISCARD);
1261 mtk_gdma_write(priv, 0, GDMA_IG_CTRL_REG, GDMA_FWD_DISCARD);
1265 mtk_eth_fifo_init(priv);
1268 if (priv->sw == SW_NONE) {
1269 ret = mtk_phy_start(priv);
1274 mtk_pdma_rmw(priv, PDMA_GLO_CFG_REG, 0,
1275 TX_WB_DDONE | RX_DMA_EN | TX_DMA_EN);
1281 static void mtk_eth_stop(struct udevice *dev)
1283 struct mtk_eth_priv *priv = dev_get_priv(dev);
1285 mtk_pdma_rmw(priv, PDMA_GLO_CFG_REG,
1286 TX_WB_DDONE | RX_DMA_EN | TX_DMA_EN, 0);
1289 wait_for_bit_le32(priv->fe_base + PDMA_BASE + PDMA_GLO_CFG_REG,
1290 RX_DMA_BUSY | TX_DMA_BUSY, 0, 5000, 0);
1293 static int mtk_eth_write_hwaddr(struct udevice *dev)
1295 struct eth_pdata *pdata = dev_get_plat(dev);
1296 struct mtk_eth_priv *priv = dev_get_priv(dev);
1297 unsigned char *mac = pdata->enetaddr;
1298 u32 macaddr_lsb, macaddr_msb;
1300 macaddr_msb = ((u32)mac[0] << 8) | (u32)mac[1];
1301 macaddr_lsb = ((u32)mac[2] << 24) | ((u32)mac[3] << 16) |
1302 ((u32)mac[4] << 8) | (u32)mac[5];
1304 mtk_gdma_write(priv, priv->gmac_id, GDMA_MAC_MSB_REG, macaddr_msb);
1305 mtk_gdma_write(priv, priv->gmac_id, GDMA_MAC_LSB_REG, macaddr_lsb);
1310 static int mtk_eth_send(struct udevice *dev, void *packet, int length)
1312 struct mtk_eth_priv *priv = dev_get_priv(dev);
1313 u32 idx = priv->tx_cpu_owner_idx0;
1316 if (!priv->tx_ring_noc[idx].txd_info2.DDONE) {
1317 debug("mtk-eth: TX DMA descriptor ring is full\n");
1321 pkt_base = (void *)phys_to_virt(priv->tx_ring_noc[idx].txd_info1.SDP0);
1322 memcpy(pkt_base, packet, length);
1323 flush_dcache_range((ulong)pkt_base, (ulong)pkt_base +
1324 roundup(length, ARCH_DMA_MINALIGN));
1326 priv->tx_ring_noc[idx].txd_info2.SDL0 = length;
1327 priv->tx_ring_noc[idx].txd_info2.DDONE = 0;
1329 priv->tx_cpu_owner_idx0 = (priv->tx_cpu_owner_idx0 + 1) % NUM_TX_DESC;
1330 mtk_pdma_write(priv, TX_CTX_IDX_REG(0), priv->tx_cpu_owner_idx0);
1335 static int mtk_eth_recv(struct udevice *dev, int flags, uchar **packetp)
1337 struct mtk_eth_priv *priv = dev_get_priv(dev);
1338 u32 idx = priv->rx_dma_owner_idx0;
1342 if (!priv->rx_ring_noc[idx].rxd_info2.DDONE) {
1343 debug("mtk-eth: RX DMA descriptor ring is empty\n");
1347 length = priv->rx_ring_noc[idx].rxd_info2.PLEN0;
1348 pkt_base = (void *)phys_to_virt(priv->rx_ring_noc[idx].rxd_info1.PDP0);
1349 invalidate_dcache_range((ulong)pkt_base, (ulong)pkt_base +
1350 roundup(length, ARCH_DMA_MINALIGN));
1353 *packetp = pkt_base;
1358 static int mtk_eth_free_pkt(struct udevice *dev, uchar *packet, int length)
1360 struct mtk_eth_priv *priv = dev_get_priv(dev);
1361 u32 idx = priv->rx_dma_owner_idx0;
1363 priv->rx_ring_noc[idx].rxd_info2.DDONE = 0;
1364 priv->rx_ring_noc[idx].rxd_info2.LS0 = 0;
1365 priv->rx_ring_noc[idx].rxd_info2.PLEN0 = PKTSIZE_ALIGN;
1367 mtk_pdma_write(priv, RX_CRX_IDX_REG(0), idx);
1368 priv->rx_dma_owner_idx0 = (priv->rx_dma_owner_idx0 + 1) % NUM_RX_DESC;
1373 static int mtk_eth_probe(struct udevice *dev)
1375 struct eth_pdata *pdata = dev_get_plat(dev);
1376 struct mtk_eth_priv *priv = dev_get_priv(dev);
1377 ulong iobase = pdata->iobase;
1380 /* Frame Engine Register Base */
1381 priv->fe_base = (void *)iobase;
1383 /* GMAC Register Base */
1384 priv->gmac_base = (void *)(iobase + GMAC_BASE);
1387 ret = mtk_mdio_register(dev);
1391 /* Prepare for tx/rx rings */
1392 priv->tx_ring_noc = (struct pdma_txdesc *)
1393 noncached_alloc(sizeof(struct pdma_txdesc) * NUM_TX_DESC,
1395 priv->rx_ring_noc = (struct pdma_rxdesc *)
1396 noncached_alloc(sizeof(struct pdma_rxdesc) * NUM_RX_DESC,
1402 /* Probe phy if switch is not specified */
1403 if (priv->sw == SW_NONE)
1404 return mtk_phy_probe(dev);
1406 /* Initialize switch */
1407 return mt753x_switch_init(priv);
1410 static int mtk_eth_remove(struct udevice *dev)
1412 struct mtk_eth_priv *priv = dev_get_priv(dev);
1414 /* MDIO unregister */
1415 mdio_unregister(priv->mdio_bus);
1416 mdio_free(priv->mdio_bus);
1418 /* Stop possibly started DMA */
1424 static int mtk_eth_of_to_plat(struct udevice *dev)
1426 struct eth_pdata *pdata = dev_get_plat(dev);
1427 struct mtk_eth_priv *priv = dev_get_priv(dev);
1428 struct ofnode_phandle_args args;
1429 struct regmap *regmap;
1434 priv->soc = dev_get_driver_data(dev);
1436 pdata->iobase = (phys_addr_t)dev_remap_addr(dev);
1438 /* get corresponding ethsys phandle */
1439 ret = dev_read_phandle_with_args(dev, "mediatek,ethsys", NULL, 0, 0,
1444 priv->ethsys_regmap = syscon_node_to_regmap(args.node);
1445 if (IS_ERR(priv->ethsys_regmap))
1446 return PTR_ERR(priv->ethsys_regmap);
1448 /* Reset controllers */
1449 ret = reset_get_by_name(dev, "fe", &priv->rst_fe);
1451 printf("error: Unable to get reset ctrl for frame engine\n");
1455 priv->gmac_id = dev_read_u32_default(dev, "mediatek,gmac-id", 0);
1457 /* Interface mode is required */
1458 pdata->phy_interface = dev_read_phy_mode(dev);
1459 priv->phy_interface = pdata->phy_interface;
1460 if (pdata->phy_interface == PHY_INTERFACE_MODE_NA) {
1461 printf("error: phy-mode is not set\n");
1465 /* Force mode or autoneg */
1466 subnode = ofnode_find_subnode(dev_ofnode(dev), "fixed-link");
1467 if (ofnode_valid(subnode)) {
1468 priv->force_mode = 1;
1469 priv->speed = ofnode_read_u32_default(subnode, "speed", 0);
1470 priv->duplex = ofnode_read_bool(subnode, "full-duplex");
1472 if (priv->speed != SPEED_10 && priv->speed != SPEED_100 &&
1473 priv->speed != SPEED_1000) {
1474 printf("error: no valid speed set in fixed-link\n");
1479 if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII) {
1480 /* get corresponding sgmii phandle */
1481 ret = dev_read_phandle_with_args(dev, "mediatek,sgmiisys",
1486 regmap = syscon_node_to_regmap(args.node);
1489 return PTR_ERR(regmap);
1491 priv->sgmii_base = regmap_get_range(regmap, 0);
1493 if (!priv->sgmii_base) {
1494 dev_err(dev, "Unable to find sgmii\n");
1499 /* check for switch first, otherwise phy will be used */
1501 priv->switch_init = NULL;
1502 str = dev_read_string(dev, "mediatek,switch");
1505 if (!strcmp(str, "mt7530")) {
1506 priv->sw = SW_MT7530;
1507 priv->switch_init = mt7530_setup;
1508 priv->mt753x_smi_addr = MT753X_DFL_SMI_ADDR;
1509 } else if (!strcmp(str, "mt7531")) {
1510 priv->sw = SW_MT7531;
1511 priv->switch_init = mt7531_setup;
1512 priv->mt753x_smi_addr = MT753X_DFL_SMI_ADDR;
1514 printf("error: unsupported switch\n");
1518 priv->mcm = dev_read_bool(dev, "mediatek,mcm");
1520 ret = reset_get_by_name(dev, "mcm", &priv->rst_mcm);
1522 printf("error: no reset ctrl for mcm\n");
1526 gpio_request_by_name(dev, "reset-gpios", 0,
1527 &priv->rst_gpio, GPIOD_IS_OUT);
1530 ret = dev_read_phandle_with_args(dev, "phy-handle", NULL, 0,
1533 printf("error: phy-handle is not specified\n");
1537 priv->phy_addr = ofnode_read_s32_default(args.node, "reg", -1);
1538 if (priv->phy_addr < 0) {
1539 printf("error: phy address is not specified\n");
1547 static const struct udevice_id mtk_eth_ids[] = {
1548 { .compatible = "mediatek,mt7629-eth", .data = SOC_MT7629 },
1549 { .compatible = "mediatek,mt7623-eth", .data = SOC_MT7623 },
1550 { .compatible = "mediatek,mt7622-eth", .data = SOC_MT7622 },
1551 { .compatible = "mediatek,mt7621-eth", .data = SOC_MT7621 },
1555 static const struct eth_ops mtk_eth_ops = {
1556 .start = mtk_eth_start,
1557 .stop = mtk_eth_stop,
1558 .send = mtk_eth_send,
1559 .recv = mtk_eth_recv,
1560 .free_pkt = mtk_eth_free_pkt,
1561 .write_hwaddr = mtk_eth_write_hwaddr,
1564 U_BOOT_DRIVER(mtk_eth) = {
1567 .of_match = mtk_eth_ids,
1568 .of_to_plat = mtk_eth_of_to_plat,
1569 .plat_auto = sizeof(struct eth_pdata),
1570 .probe = mtk_eth_probe,
1571 .remove = mtk_eth_remove,
1572 .ops = &mtk_eth_ops,
1573 .priv_auto = sizeof(struct mtk_eth_priv),
1574 .flags = DM_FLAG_ALLOC_PRIV_DMA,