| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Dan Murphy | 752 | 57.67% | 3 | 18.75% |
| Lukasz Majewski | 164 | 12.58% | 2 | 12.50% |
| Mugunthan V N | 98 | 7.52% | 1 | 6.25% |
| Wadim Egorov | 90 | 6.90% | 1 | 6.25% |
| Murali Karicheri | 81 | 6.21% | 2 | 12.50% |
| Grygorii Strashko | 43 | 3.30% | 1 | 6.25% |
| Stefan Hauser | 36 | 2.76% | 1 | 6.25% |
| Russell King | 24 | 1.84% | 1 | 6.25% |
| Maxim Uvarov | 10 | 0.77% | 1 | 6.25% |
| Andrew Lunn | 5 | 0.38% | 2 | 12.50% |
| Fengguang Wu | 1 | 0.08% | 1 | 6.25% |
| Total | 1304 | 16 |
/* * Driver for the Texas Instruments DP83867 PHY * * Copyright (C) 2015 Texas Instruments Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include <linux/ethtool.h> #include <linux/kernel.h> #include <linux/mii.h> #include <linux/module.h> #include <linux/of.h> #include <linux/phy.h> #include <linux/delay.h> #include <dt-bindings/net/ti-dp83867.h> #define DP83867_PHY_ID 0x2000a231 #define DP83867_DEVADDR 0x1f #define MII_DP83867_PHYCTRL 0x10 #define MII_DP83867_MICR 0x12 #define MII_DP83867_ISR 0x13 #define DP83867_CTRL 0x1f #define DP83867_CFG3 0x1e /* Extended Registers */ #define DP83867_CFG4 0x0031 #define DP83867_RGMIICTL 0x0032 #define DP83867_STRAP_STS1 0x006E #define DP83867_RGMIIDCTL 0x0086 #define DP83867_IO_MUX_CFG 0x0170 #define DP83867_SW_RESET BIT(15) #define DP83867_SW_RESTART BIT(14) /* MICR Interrupt bits */ #define MII_DP83867_MICR_AN_ERR_INT_EN BIT(15) #define MII_DP83867_MICR_SPEED_CHNG_INT_EN BIT(14) #define MII_DP83867_MICR_DUP_MODE_CHNG_INT_EN BIT(13) #define MII_DP83867_MICR_PAGE_RXD_INT_EN BIT(12) #define MII_DP83867_MICR_AUTONEG_COMP_INT_EN BIT(11) #define MII_DP83867_MICR_LINK_STS_CHNG_INT_EN BIT(10) #define MII_DP83867_MICR_FALSE_CARRIER_INT_EN BIT(8) #define MII_DP83867_MICR_SLEEP_MODE_CHNG_INT_EN BIT(4) #define MII_DP83867_MICR_WOL_INT_EN BIT(3) #define MII_DP83867_MICR_XGMII_ERR_INT_EN BIT(2) #define MII_DP83867_MICR_POL_CHNG_INT_EN BIT(1) #define MII_DP83867_MICR_JABBER_INT_EN BIT(0) /* RGMIICTL bits */ #define DP83867_RGMII_TX_CLK_DELAY_EN BIT(1) #define DP83867_RGMII_RX_CLK_DELAY_EN BIT(0) /* STRAP_STS1 bits */ #define DP83867_STRAP_STS1_RESERVED BIT(11) /* PHY CTRL bits */ #define DP83867_PHYCR_FIFO_DEPTH_SHIFT 14 #define DP83867_PHYCR_FIFO_DEPTH_MASK (3 << 14) #define DP83867_PHYCR_RESERVED_MASK BIT(11) /* RGMIIDCTL bits */ #define DP83867_RGMII_TX_CLK_DELAY_SHIFT 4 /* IO_MUX_CFG bits */ #define DP83867_IO_MUX_CFG_IO_IMPEDANCE_CTRL 0x1f #define DP83867_IO_MUX_CFG_IO_IMPEDANCE_MAX 0x0 #define DP83867_IO_MUX_CFG_IO_IMPEDANCE_MIN 0x1f #define DP83867_IO_MUX_CFG_CLK_O_SEL_MASK (0x1f << 8) #define DP83867_IO_MUX_CFG_CLK_O_SEL_SHIFT 8 /* CFG4 bits */ #define DP83867_CFG4_PORT_MIRROR_EN BIT(0) enum { DP83867_PORT_MIRROING_KEEP, DP83867_PORT_MIRROING_EN, DP83867_PORT_MIRROING_DIS, }; struct dp83867_private { int rx_id_delay; int tx_id_delay; int fifo_depth; int io_impedance; int port_mirroring; bool rxctrl_strap_quirk; int clk_output_sel; }; static int dp83867_ack_interrupt(struct phy_device *phydev) { int err = phy_read(phydev, MII_DP83867_ISR); if (err < 0) return err; return 0; } static int dp83867_config_intr(struct phy_device *phydev) { int micr_status; if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { micr_status = phy_read(phydev, MII_DP83867_MICR); if (micr_status < 0) return micr_status; micr_status |= (MII_DP83867_MICR_AN_ERR_INT_EN | MII_DP83867_MICR_SPEED_CHNG_INT_EN | MII_DP83867_MICR_AUTONEG_COMP_INT_EN | MII_DP83867_MICR_LINK_STS_CHNG_INT_EN | MII_DP83867_MICR_DUP_MODE_CHNG_INT_EN | MII_DP83867_MICR_SLEEP_MODE_CHNG_INT_EN); return phy_write(phydev, MII_DP83867_MICR, micr_status); } micr_status = 0x0; return phy_write(phydev, MII_DP83867_MICR, micr_status); } static int dp83867_config_port_mirroring(struct phy_device *phydev) { struct dp83867_private *dp83867 = (struct dp83867_private *)phydev->priv; u16 val; val = phy_read_mmd(phydev, DP83867_DEVADDR, DP83867_CFG4); if (dp83867->port_mirroring == DP83867_PORT_MIRROING_EN) val |= DP83867_CFG4_PORT_MIRROR_EN; else val &= ~DP83867_CFG4_PORT_MIRROR_EN; phy_write_mmd(phydev, DP83867_DEVADDR, DP83867_CFG4, val); return 0; } #ifdef CONFIG_OF_MDIO static int dp83867_of_init(struct phy_device *phydev) { struct dp83867_private *dp83867 = phydev->priv; struct device *dev = &phydev->mdio.dev; struct device_node *of_node = dev->of_node; int ret; if (!of_node) return -ENODEV; dp83867->io_impedance = -EINVAL; /* Optional configuration */ ret = of_property_read_u32(of_node, "ti,clk-output-sel", &dp83867->clk_output_sel); if (ret || dp83867->clk_output_sel > DP83867_CLK_O_SEL_REF_CLK) /* Keep the default value if ti,clk-output-sel is not set * or too high */ dp83867->clk_output_sel = DP83867_CLK_O_SEL_REF_CLK; if (of_property_read_bool(of_node, "ti,max-output-impedance")) dp83867->io_impedance = DP83867_IO_MUX_CFG_IO_IMPEDANCE_MAX; else if (of_property_read_bool(of_node, "ti,min-output-impedance")) dp83867->io_impedance = DP83867_IO_MUX_CFG_IO_IMPEDANCE_MIN; dp83867->rxctrl_strap_quirk = of_property_read_bool(of_node, "ti,dp83867-rxctrl-strap-quirk"); ret = of_property_read_u32(of_node, "ti,rx-internal-delay", &dp83867->rx_id_delay); if (ret && (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)) return ret; ret = of_property_read_u32(of_node, "ti,tx-internal-delay", &dp83867->tx_id_delay); if (ret && (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) return ret; if (of_property_read_bool(of_node, "enet-phy-lane-swap")) dp83867->port_mirroring = DP83867_PORT_MIRROING_EN; if (of_property_read_bool(of_node, "enet-phy-lane-no-swap")) dp83867->port_mirroring = DP83867_PORT_MIRROING_DIS; return of_property_read_u32(of_node, "ti,fifo-depth", &dp83867->fifo_depth); } #else static int dp83867_of_init(struct phy_device *phydev) { return 0; } #endif /* CONFIG_OF_MDIO */ static int dp83867_config_init(struct phy_device *phydev) { struct dp83867_private *dp83867; int ret, val, bs; u16 delay; if (!phydev->priv) { dp83867 = devm_kzalloc(&phydev->mdio.dev, sizeof(*dp83867), GFP_KERNEL); if (!dp83867) return -ENOMEM; phydev->priv = dp83867; ret = dp83867_of_init(phydev); if (ret) return ret; } else { dp83867 = (struct dp83867_private *)phydev->priv; } /* RX_DV/RX_CTRL strapped in mode 1 or mode 2 workaround */ if (dp83867->rxctrl_strap_quirk) { val = phy_read_mmd(phydev, DP83867_DEVADDR, DP83867_CFG4); val &= ~BIT(7); phy_write_mmd(phydev, DP83867_DEVADDR, DP83867_CFG4, val); } if (phy_interface_is_rgmii(phydev)) { val = phy_read(phydev, MII_DP83867_PHYCTRL); if (val < 0) return val; val &= ~DP83867_PHYCR_FIFO_DEPTH_MASK; val |= (dp83867->fifo_depth << DP83867_PHYCR_FIFO_DEPTH_SHIFT); /* The code below checks if "port mirroring" N/A MODE4 has been * enabled during power on bootstrap. * * Such N/A mode enabled by mistake can put PHY IC in some * internal testing mode and disable RGMII transmission. * * In this particular case one needs to check STRAP_STS1 * register's bit 11 (marked as RESERVED). */ bs = phy_read_mmd(phydev, DP83867_DEVADDR, DP83867_STRAP_STS1); if (bs & DP83867_STRAP_STS1_RESERVED) val &= ~DP83867_PHYCR_RESERVED_MASK; ret = phy_write(phydev, MII_DP83867_PHYCTRL, val); if (ret) return ret; } if ((phydev->interface >= PHY_INTERFACE_MODE_RGMII_ID) && (phydev->interface <= PHY_INTERFACE_MODE_RGMII_RXID)) { val = phy_read_mmd(phydev, DP83867_DEVADDR, DP83867_RGMIICTL); if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) val |= (DP83867_RGMII_TX_CLK_DELAY_EN | DP83867_RGMII_RX_CLK_DELAY_EN); if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) val |= DP83867_RGMII_TX_CLK_DELAY_EN; if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) val |= DP83867_RGMII_RX_CLK_DELAY_EN; phy_write_mmd(phydev, DP83867_DEVADDR, DP83867_RGMIICTL, val); delay = (dp83867->rx_id_delay | (dp83867->tx_id_delay << DP83867_RGMII_TX_CLK_DELAY_SHIFT)); phy_write_mmd(phydev, DP83867_DEVADDR, DP83867_RGMIIDCTL, delay); if (dp83867->io_impedance >= 0) { val = phy_read_mmd(phydev, DP83867_DEVADDR, DP83867_IO_MUX_CFG); val &= ~DP83867_IO_MUX_CFG_IO_IMPEDANCE_CTRL; val |= dp83867->io_impedance & DP83867_IO_MUX_CFG_IO_IMPEDANCE_CTRL; phy_write_mmd(phydev, DP83867_DEVADDR, DP83867_IO_MUX_CFG, val); } } /* Enable Interrupt output INT_OE in CFG3 register */ if (phy_interrupt_is_valid(phydev)) { val = phy_read(phydev, DP83867_CFG3); val |= BIT(7); phy_write(phydev, DP83867_CFG3, val); } if (dp83867->port_mirroring != DP83867_PORT_MIRROING_KEEP) dp83867_config_port_mirroring(phydev); /* Clock output selection if muxing property is set */ if (dp83867->clk_output_sel != DP83867_CLK_O_SEL_REF_CLK) { val = phy_read_mmd(phydev, DP83867_DEVADDR, DP83867_IO_MUX_CFG); val &= ~DP83867_IO_MUX_CFG_CLK_O_SEL_MASK; val |= (dp83867->clk_output_sel << DP83867_IO_MUX_CFG_CLK_O_SEL_SHIFT); phy_write_mmd(phydev, DP83867_DEVADDR, DP83867_IO_MUX_CFG, val); } return 0; } static int dp83867_phy_reset(struct phy_device *phydev) { int err; err = phy_write(phydev, DP83867_CTRL, DP83867_SW_RESET); if (err < 0) return err; usleep_range(10, 20); return dp83867_config_init(phydev); } static struct phy_driver dp83867_driver[] = { { .phy_id = DP83867_PHY_ID, .phy_id_mask = 0xfffffff0, .name = "TI DP83867", .features = PHY_GBIT_FEATURES, .config_init = dp83867_config_init, .soft_reset = dp83867_phy_reset, /* IRQ related */ .ack_interrupt = dp83867_ack_interrupt, .config_intr = dp83867_config_intr, .suspend = genphy_suspend, .resume = genphy_resume, }, }; module_phy_driver(dp83867_driver); static struct mdio_device_id __maybe_unused dp83867_tbl[] = { { DP83867_PHY_ID, 0xfffffff0 }, { } }; MODULE_DEVICE_TABLE(mdio, dp83867_tbl); MODULE_DESCRIPTION("Texas Instruments DP83867 PHY driver"); MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com"); MODULE_LICENSE("GPL");
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