| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * drivers/net/phy/broadcom.c |
| * |
| * Broadcom BCM5411, BCM5421 and BCM5461 Gigabit Ethernet |
| * transceivers. |
| * |
| * Copyright (c) 2006 Maciej W. Rozycki |
| * |
| * Inspired by code written by Amy Fong. |
| */ |
| |
| #include "bcm-phy-lib.h" |
| #include <linux/module.h> |
| #include <linux/phy.h> |
| #include <linux/brcmphy.h> |
| #include <linux/of.h> |
| |
| #define BRCM_PHY_MODEL(phydev) \ |
| ((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask) |
| |
| #define BRCM_PHY_REV(phydev) \ |
| ((phydev)->drv->phy_id & ~((phydev)->drv->phy_id_mask)) |
| |
| MODULE_DESCRIPTION("Broadcom PHY driver"); |
| MODULE_AUTHOR("Maciej W. Rozycki"); |
| MODULE_LICENSE("GPL"); |
| |
| static int bcm54xx_config_clock_delay(struct phy_device *phydev) |
| { |
| int rc, val; |
| |
| /* handling PHY's internal RX clock delay */ |
| val = bcm54xx_auxctl_read(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC); |
| val |= MII_BCM54XX_AUXCTL_MISC_WREN; |
| if (phydev->interface == PHY_INTERFACE_MODE_RGMII || |
| phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) { |
| /* Disable RGMII RXC-RXD skew */ |
| val &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN; |
| } |
| if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || |
| phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) { |
| /* Enable RGMII RXC-RXD skew */ |
| val |= MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN; |
| } |
| rc = bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC, |
| val); |
| if (rc < 0) |
| return rc; |
| |
| /* handling PHY's internal TX clock delay */ |
| val = bcm_phy_read_shadow(phydev, BCM54810_SHD_CLK_CTL); |
| if (phydev->interface == PHY_INTERFACE_MODE_RGMII || |
| phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) { |
| /* Disable internal TX clock delay */ |
| val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN; |
| } |
| if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || |
| phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) { |
| /* Enable internal TX clock delay */ |
| val |= BCM54810_SHD_CLK_CTL_GTXCLK_EN; |
| } |
| rc = bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val); |
| if (rc < 0) |
| return rc; |
| |
| return 0; |
| } |
| |
| static int bcm54210e_config_init(struct phy_device *phydev) |
| { |
| int val; |
| |
| bcm54xx_config_clock_delay(phydev); |
| |
| if (phydev->dev_flags & PHY_BRCM_EN_MASTER_MODE) { |
| val = phy_read(phydev, MII_CTRL1000); |
| val |= CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER; |
| phy_write(phydev, MII_CTRL1000, val); |
| } |
| |
| return 0; |
| } |
| |
| static int bcm54612e_config_init(struct phy_device *phydev) |
| { |
| int reg; |
| |
| bcm54xx_config_clock_delay(phydev); |
| |
| /* Enable CLK125 MUX on LED4 if ref clock is enabled. */ |
| if (!(phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED)) { |
| int err; |
| |
| reg = bcm_phy_read_exp(phydev, BCM54612E_EXP_SPARE0); |
| err = bcm_phy_write_exp(phydev, BCM54612E_EXP_SPARE0, |
| BCM54612E_LED4_CLK125OUT_EN | reg); |
| |
| if (err < 0) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int bcm54616s_config_init(struct phy_device *phydev) |
| { |
| int rc, val; |
| |
| if (phydev->interface != PHY_INTERFACE_MODE_SGMII && |
| phydev->interface != PHY_INTERFACE_MODE_1000BASEX) |
| return 0; |
| |
| /* Ensure proper interface mode is selected. */ |
| /* Disable RGMII mode */ |
| val = bcm54xx_auxctl_read(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC); |
| if (val < 0) |
| return val; |
| val &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_EN; |
| val |= MII_BCM54XX_AUXCTL_MISC_WREN; |
| rc = bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC, |
| val); |
| if (rc < 0) |
| return rc; |
| |
| /* Select 1000BASE-X register set (primary SerDes) */ |
| val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_MODE); |
| if (val < 0) |
| return val; |
| val |= BCM54XX_SHD_MODE_1000BX; |
| rc = bcm_phy_write_shadow(phydev, BCM54XX_SHD_MODE, val); |
| if (rc < 0) |
| return rc; |
| |
| /* Power down SerDes interface */ |
| rc = phy_set_bits(phydev, MII_BMCR, BMCR_PDOWN); |
| if (rc < 0) |
| return rc; |
| |
| /* Select proper interface mode */ |
| val &= ~BCM54XX_SHD_INTF_SEL_MASK; |
| val |= phydev->interface == PHY_INTERFACE_MODE_SGMII ? |
| BCM54XX_SHD_INTF_SEL_SGMII : |
| BCM54XX_SHD_INTF_SEL_GBIC; |
| rc = bcm_phy_write_shadow(phydev, BCM54XX_SHD_MODE, val); |
| if (rc < 0) |
| return rc; |
| |
| /* Power up SerDes interface */ |
| rc = phy_clear_bits(phydev, MII_BMCR, BMCR_PDOWN); |
| if (rc < 0) |
| return rc; |
| |
| /* Select copper register set */ |
| val &= ~BCM54XX_SHD_MODE_1000BX; |
| rc = bcm_phy_write_shadow(phydev, BCM54XX_SHD_MODE, val); |
| if (rc < 0) |
| return rc; |
| |
| /* Power up copper interface */ |
| return phy_clear_bits(phydev, MII_BMCR, BMCR_PDOWN); |
| } |
| |
| /* Needs SMDSP clock enabled via bcm54xx_phydsp_config() */ |
| static int bcm50610_a0_workaround(struct phy_device *phydev) |
| { |
| int err; |
| |
| err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_AADJ1CH0, |
| MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN | |
| MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF); |
| if (err < 0) |
| return err; |
| |
| err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_AADJ1CH3, |
| MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ); |
| if (err < 0) |
| return err; |
| |
| err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP75, |
| MII_BCM54XX_EXP_EXP75_VDACCTRL); |
| if (err < 0) |
| return err; |
| |
| err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP96, |
| MII_BCM54XX_EXP_EXP96_MYST); |
| if (err < 0) |
| return err; |
| |
| err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP97, |
| MII_BCM54XX_EXP_EXP97_MYST); |
| |
| return err; |
| } |
| |
| static int bcm54xx_phydsp_config(struct phy_device *phydev) |
| { |
| int err, err2; |
| |
| /* Enable the SMDSP clock */ |
| err = bcm54xx_auxctl_write(phydev, |
| MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL, |
| MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA | |
| MII_BCM54XX_AUXCTL_ACTL_TX_6DB); |
| if (err < 0) |
| return err; |
| |
| if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 || |
| BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) { |
| /* Clear bit 9 to fix a phy interop issue. */ |
| err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP08, |
| MII_BCM54XX_EXP_EXP08_RJCT_2MHZ); |
| if (err < 0) |
| goto error; |
| |
| if (phydev->drv->phy_id == PHY_ID_BCM50610) { |
| err = bcm50610_a0_workaround(phydev); |
| if (err < 0) |
| goto error; |
| } |
| } |
| |
| if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM57780) { |
| int val; |
| |
| val = bcm_phy_read_exp(phydev, MII_BCM54XX_EXP_EXP75); |
| if (val < 0) |
| goto error; |
| |
| val |= MII_BCM54XX_EXP_EXP75_CM_OSC; |
| err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP75, val); |
| } |
| |
| error: |
| /* Disable the SMDSP clock */ |
| err2 = bcm54xx_auxctl_write(phydev, |
| MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL, |
| MII_BCM54XX_AUXCTL_ACTL_TX_6DB); |
| |
| /* Return the first error reported. */ |
| return err ? err : err2; |
| } |
| |
| static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev) |
| { |
| u32 orig; |
| int val; |
| bool clk125en = true; |
| |
| /* Abort if we are using an untested phy. */ |
| if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM57780 && |
| BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 && |
| BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M && |
| BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54210E && |
| BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54810 && |
| BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54811) |
| return; |
| |
| val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_SCR3); |
| if (val < 0) |
| return; |
| |
| orig = val; |
| |
| if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 || |
| BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) && |
| BRCM_PHY_REV(phydev) >= 0x3) { |
| /* |
| * Here, bit 0 _disables_ CLK125 when set. |
| * This bit is set by default. |
| */ |
| clk125en = false; |
| } else { |
| if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) { |
| if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54811) { |
| /* Here, bit 0 _enables_ CLK125 when set */ |
| val &= ~BCM54XX_SHD_SCR3_DEF_CLK125; |
| } |
| clk125en = false; |
| } |
| } |
| |
| if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE)) |
| val &= ~BCM54XX_SHD_SCR3_DLLAPD_DIS; |
| else |
| val |= BCM54XX_SHD_SCR3_DLLAPD_DIS; |
| |
| if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) { |
| if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54210E || |
| BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810 || |
| BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54210E) |
| val |= BCM54XX_SHD_SCR3_RXCTXC_DIS; |
| else |
| val |= BCM54XX_SHD_SCR3_TRDDAPD; |
| } |
| |
| if (orig != val) |
| bcm_phy_write_shadow(phydev, BCM54XX_SHD_SCR3, val); |
| |
| val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_APD); |
| if (val < 0) |
| return; |
| |
| orig = val; |
| |
| if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE)) |
| val |= BCM54XX_SHD_APD_EN; |
| else |
| val &= ~BCM54XX_SHD_APD_EN; |
| |
| if (orig != val) |
| bcm_phy_write_shadow(phydev, BCM54XX_SHD_APD, val); |
| } |
| |
| static int bcm54xx_config_init(struct phy_device *phydev) |
| { |
| int reg, err, val; |
| |
| reg = phy_read(phydev, MII_BCM54XX_ECR); |
| if (reg < 0) |
| return reg; |
| |
| /* Mask interrupts globally. */ |
| reg |= MII_BCM54XX_ECR_IM; |
| err = phy_write(phydev, MII_BCM54XX_ECR, reg); |
| if (err < 0) |
| return err; |
| |
| /* Unmask events we are interested in. */ |
| reg = ~(MII_BCM54XX_INT_DUPLEX | |
| MII_BCM54XX_INT_SPEED | |
| MII_BCM54XX_INT_LINK); |
| err = phy_write(phydev, MII_BCM54XX_IMR, reg); |
| if (err < 0) |
| return err; |
| |
| if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 || |
| BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) && |
| (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE)) |
| bcm_phy_write_shadow(phydev, BCM54XX_SHD_RGMII_MODE, 0); |
| |
| bcm54xx_adjust_rxrefclk(phydev); |
| |
| switch (BRCM_PHY_MODEL(phydev)) { |
| case PHY_ID_BCM54210E: |
| err = bcm54210e_config_init(phydev); |
| break; |
| case PHY_ID_BCM54612E: |
| err = bcm54612e_config_init(phydev); |
| break; |
| case PHY_ID_BCM54616S: |
| err = bcm54616s_config_init(phydev); |
| break; |
| case PHY_ID_BCM54810: |
| /* For BCM54810, we need to disable BroadR-Reach function */ |
| val = bcm_phy_read_exp(phydev, |
| BCM54810_EXP_BROADREACH_LRE_MISC_CTL); |
| val &= ~BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN; |
| err = bcm_phy_write_exp(phydev, |
| BCM54810_EXP_BROADREACH_LRE_MISC_CTL, |
| val); |
| break; |
| } |
| if (err) |
| return err; |
| |
| bcm54xx_phydsp_config(phydev); |
| |
| /* For non-SFP setups, encode link speed into LED1 and LED3 pair |
| * (green/amber). |
| * Also flash these two LEDs on activity. This means configuring |
| * them for MULTICOLOR and encoding link/activity into them. |
| * Don't do this for devices on an SFP module, since some of these |
| * use the LED outputs to control the SFP LOS signal, and changing |
| * these settings will cause LOS to malfunction. |
| */ |
| if (!phy_on_sfp(phydev)) { |
| val = BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_MULTICOLOR1) | |
| BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_MULTICOLOR1); |
| bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1, val); |
| |
| val = BCM_LED_MULTICOLOR_IN_PHASE | |
| BCM5482_SHD_LEDS1_LED1(BCM_LED_MULTICOLOR_LINK_ACT) | |
| BCM5482_SHD_LEDS1_LED3(BCM_LED_MULTICOLOR_LINK_ACT); |
| bcm_phy_write_exp(phydev, BCM_EXP_MULTICOLOR, val); |
| } |
| |
| return 0; |
| } |
| |
| static int bcm54xx_resume(struct phy_device *phydev) |
| { |
| int ret; |
| |
| /* Writes to register other than BMCR would be ignored |
| * unless we clear the PDOWN bit first |
| */ |
| ret = genphy_resume(phydev); |
| if (ret < 0) |
| return ret; |
| |
| return bcm54xx_config_init(phydev); |
| } |
| |
| static int bcm54811_config_init(struct phy_device *phydev) |
| { |
| int err, reg; |
| |
| /* Disable BroadR-Reach function. */ |
| reg = bcm_phy_read_exp(phydev, BCM54810_EXP_BROADREACH_LRE_MISC_CTL); |
| reg &= ~BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN; |
| err = bcm_phy_write_exp(phydev, BCM54810_EXP_BROADREACH_LRE_MISC_CTL, |
| reg); |
| if (err < 0) |
| return err; |
| |
| err = bcm54xx_config_init(phydev); |
| |
| /* Enable CLK125 MUX on LED4 if ref clock is enabled. */ |
| if (!(phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED)) { |
| reg = bcm_phy_read_exp(phydev, BCM54612E_EXP_SPARE0); |
| err = bcm_phy_write_exp(phydev, BCM54612E_EXP_SPARE0, |
| BCM54612E_LED4_CLK125OUT_EN | reg); |
| if (err < 0) |
| return err; |
| } |
| |
| return err; |
| } |
| |
| static int bcm5481_config_aneg(struct phy_device *phydev) |
| { |
| struct device_node *np = phydev->mdio.dev.of_node; |
| int ret; |
| |
| /* Aneg firstly. */ |
| ret = genphy_config_aneg(phydev); |
| |
| /* Then we can set up the delay. */ |
| bcm54xx_config_clock_delay(phydev); |
| |
| if (of_property_read_bool(np, "enet-phy-lane-swap")) { |
| /* Lane Swap - Undocumented register...magic! */ |
| ret = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_SEL_ER + 0x9, |
| 0x11B); |
| if (ret < 0) |
| return ret; |
| } |
| |
| return ret; |
| } |
| |
| struct bcm54616s_phy_priv { |
| bool mode_1000bx_en; |
| }; |
| |
| static int bcm54616s_probe(struct phy_device *phydev) |
| { |
| struct bcm54616s_phy_priv *priv; |
| int val; |
| |
| priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL); |
| if (!priv) |
| return -ENOMEM; |
| |
| phydev->priv = priv; |
| |
| val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_MODE); |
| if (val < 0) |
| return val; |
| |
| /* The PHY is strapped in RGMII-fiber mode when INTERF_SEL[1:0] |
| * is 01b, and the link between PHY and its link partner can be |
| * either 1000Base-X or 100Base-FX. |
| * RGMII-1000Base-X is properly supported, but RGMII-100Base-FX |
| * support is still missing as of now. |
| */ |
| if ((val & BCM54XX_SHD_INTF_SEL_MASK) == BCM54XX_SHD_INTF_SEL_RGMII) { |
| val = bcm_phy_read_shadow(phydev, BCM54616S_SHD_100FX_CTRL); |
| if (val < 0) |
| return val; |
| |
| /* Bit 0 of the SerDes 100-FX Control register, when set |
| * to 1, sets the MII/RGMII -> 100BASE-FX configuration. |
| * When this bit is set to 0, it sets the GMII/RGMII -> |
| * 1000BASE-X configuration. |
| */ |
| if (!(val & BCM54616S_100FX_MODE)) |
| priv->mode_1000bx_en = true; |
| |
| phydev->port = PORT_FIBRE; |
| } |
| |
| return 0; |
| } |
| |
| static int bcm54616s_config_aneg(struct phy_device *phydev) |
| { |
| struct bcm54616s_phy_priv *priv = phydev->priv; |
| int ret; |
| |
| /* Aneg firstly. */ |
| if (priv->mode_1000bx_en) |
| ret = genphy_c37_config_aneg(phydev); |
| else |
| ret = genphy_config_aneg(phydev); |
| |
| /* Then we can set up the delay. */ |
| bcm54xx_config_clock_delay(phydev); |
| |
| return ret; |
| } |
| |
| static int bcm54616s_read_status(struct phy_device *phydev) |
| { |
| struct bcm54616s_phy_priv *priv = phydev->priv; |
| int err; |
| |
| if (priv->mode_1000bx_en) |
| err = genphy_c37_read_status(phydev); |
| else |
| err = genphy_read_status(phydev); |
| |
| return err; |
| } |
| |
| static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set) |
| { |
| int val; |
| |
| val = phy_read(phydev, reg); |
| if (val < 0) |
| return val; |
| |
| return phy_write(phydev, reg, val | set); |
| } |
| |
| static int brcm_fet_config_init(struct phy_device *phydev) |
| { |
| int reg, err, err2, brcmtest; |
| |
| /* Reset the PHY to bring it to a known state. */ |
| err = phy_write(phydev, MII_BMCR, BMCR_RESET); |
| if (err < 0) |
| return err; |
| |
| reg = phy_read(phydev, MII_BRCM_FET_INTREG); |
| if (reg < 0) |
| return reg; |
| |
| /* Unmask events we are interested in and mask interrupts globally. */ |
| reg = MII_BRCM_FET_IR_DUPLEX_EN | |
| MII_BRCM_FET_IR_SPEED_EN | |
| MII_BRCM_FET_IR_LINK_EN | |
| MII_BRCM_FET_IR_ENABLE | |
| MII_BRCM_FET_IR_MASK; |
| |
| err = phy_write(phydev, MII_BRCM_FET_INTREG, reg); |
| if (err < 0) |
| return err; |
| |
| /* Enable shadow register access */ |
| brcmtest = phy_read(phydev, MII_BRCM_FET_BRCMTEST); |
| if (brcmtest < 0) |
| return brcmtest; |
| |
| reg = brcmtest | MII_BRCM_FET_BT_SRE; |
| |
| err = phy_write(phydev, MII_BRCM_FET_BRCMTEST, reg); |
| if (err < 0) |
| return err; |
| |
| /* Set the LED mode */ |
| reg = phy_read(phydev, MII_BRCM_FET_SHDW_AUXMODE4); |
| if (reg < 0) { |
| err = reg; |
| goto done; |
| } |
| |
| reg &= ~MII_BRCM_FET_SHDW_AM4_LED_MASK; |
| reg |= MII_BRCM_FET_SHDW_AM4_LED_MODE1; |
| |
| err = phy_write(phydev, MII_BRCM_FET_SHDW_AUXMODE4, reg); |
| if (err < 0) |
| goto done; |
| |
| /* Enable auto MDIX */ |
| err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_MISCCTRL, |
| MII_BRCM_FET_SHDW_MC_FAME); |
| if (err < 0) |
| goto done; |
| |
| if (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE) { |
| /* Enable auto power down */ |
| err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_AUXSTAT2, |
| MII_BRCM_FET_SHDW_AS2_APDE); |
| } |
| |
| done: |
| /* Disable shadow register access */ |
| err2 = phy_write(phydev, MII_BRCM_FET_BRCMTEST, brcmtest); |
| if (!err) |
| err = err2; |
| |
| return err; |
| } |
| |
| static int brcm_fet_ack_interrupt(struct phy_device *phydev) |
| { |
| int reg; |
| |
| /* Clear pending interrupts. */ |
| reg = phy_read(phydev, MII_BRCM_FET_INTREG); |
| if (reg < 0) |
| return reg; |
| |
| return 0; |
| } |
| |
| static int brcm_fet_config_intr(struct phy_device *phydev) |
| { |
| int reg, err; |
| |
| reg = phy_read(phydev, MII_BRCM_FET_INTREG); |
| if (reg < 0) |
| return reg; |
| |
| if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { |
| err = brcm_fet_ack_interrupt(phydev); |
| if (err) |
| return err; |
| |
| reg &= ~MII_BRCM_FET_IR_MASK; |
| err = phy_write(phydev, MII_BRCM_FET_INTREG, reg); |
| } else { |
| reg |= MII_BRCM_FET_IR_MASK; |
| err = phy_write(phydev, MII_BRCM_FET_INTREG, reg); |
| if (err) |
| return err; |
| |
| err = brcm_fet_ack_interrupt(phydev); |
| } |
| |
| return err; |
| } |
| |
| static irqreturn_t brcm_fet_handle_interrupt(struct phy_device *phydev) |
| { |
| int irq_status; |
| |
| irq_status = phy_read(phydev, MII_BRCM_FET_INTREG); |
| if (irq_status < 0) { |
| phy_error(phydev); |
| return IRQ_NONE; |
| } |
| |
| if (irq_status == 0) |
| return IRQ_NONE; |
| |
| phy_trigger_machine(phydev); |
| |
| return IRQ_HANDLED; |
| } |
| |
| struct bcm53xx_phy_priv { |
| u64 *stats; |
| }; |
| |
| static int bcm53xx_phy_probe(struct phy_device *phydev) |
| { |
| struct bcm53xx_phy_priv *priv; |
| |
| priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL); |
| if (!priv) |
| return -ENOMEM; |
| |
| phydev->priv = priv; |
| |
| priv->stats = devm_kcalloc(&phydev->mdio.dev, |
| bcm_phy_get_sset_count(phydev), sizeof(u64), |
| GFP_KERNEL); |
| if (!priv->stats) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| static void bcm53xx_phy_get_stats(struct phy_device *phydev, |
| struct ethtool_stats *stats, u64 *data) |
| { |
| struct bcm53xx_phy_priv *priv = phydev->priv; |
| |
| bcm_phy_get_stats(phydev, priv->stats, stats, data); |
| } |
| |
| static struct phy_driver broadcom_drivers[] = { |
| { |
| .phy_id = PHY_ID_BCM5411, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM5411", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCM5421, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM5421", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCM54210E, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM54210E", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCM5461, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM5461", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCM54612E, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM54612E", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCM54616S, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM54616S", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_aneg = bcm54616s_config_aneg, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| .read_status = bcm54616s_read_status, |
| .probe = bcm54616s_probe, |
| }, { |
| .phy_id = PHY_ID_BCM5464, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM5464", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| .suspend = genphy_suspend, |
| .resume = genphy_resume, |
| }, { |
| .phy_id = PHY_ID_BCM5481, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM5481", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_aneg = bcm5481_config_aneg, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCM54810, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM54810", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_aneg = bcm5481_config_aneg, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| .suspend = genphy_suspend, |
| .resume = bcm54xx_resume, |
| }, { |
| .phy_id = PHY_ID_BCM54811, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM54811", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54811_config_init, |
| .config_aneg = bcm5481_config_aneg, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| .suspend = genphy_suspend, |
| .resume = bcm54xx_resume, |
| }, { |
| .phy_id = PHY_ID_BCM5482, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM5482", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCM50610, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM50610", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCM50610M, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM50610M", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCM57780, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM57780", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCMAC131, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCMAC131", |
| /* PHY_BASIC_FEATURES */ |
| .config_init = brcm_fet_config_init, |
| .config_intr = brcm_fet_config_intr, |
| .handle_interrupt = brcm_fet_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCM5241, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM5241", |
| /* PHY_BASIC_FEATURES */ |
| .config_init = brcm_fet_config_init, |
| .config_intr = brcm_fet_config_intr, |
| .handle_interrupt = brcm_fet_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCM5395, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM5395", |
| .flags = PHY_IS_INTERNAL, |
| /* PHY_GBIT_FEATURES */ |
| .get_sset_count = bcm_phy_get_sset_count, |
| .get_strings = bcm_phy_get_strings, |
| .get_stats = bcm53xx_phy_get_stats, |
| .probe = bcm53xx_phy_probe, |
| }, { |
| .phy_id = PHY_ID_BCM53125, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM53125", |
| .flags = PHY_IS_INTERNAL, |
| /* PHY_GBIT_FEATURES */ |
| .get_sset_count = bcm_phy_get_sset_count, |
| .get_strings = bcm_phy_get_strings, |
| .get_stats = bcm53xx_phy_get_stats, |
| .probe = bcm53xx_phy_probe, |
| .config_init = bcm54xx_config_init, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| }, { |
| .phy_id = PHY_ID_BCM89610, |
| .phy_id_mask = 0xfffffff0, |
| .name = "Broadcom BCM89610", |
| /* PHY_GBIT_FEATURES */ |
| .config_init = bcm54xx_config_init, |
| .config_intr = bcm_phy_config_intr, |
| .handle_interrupt = bcm_phy_handle_interrupt, |
| } }; |
| |
| module_phy_driver(broadcom_drivers); |
| |
| static struct mdio_device_id __maybe_unused broadcom_tbl[] = { |
| { PHY_ID_BCM5411, 0xfffffff0 }, |
| { PHY_ID_BCM5421, 0xfffffff0 }, |
| { PHY_ID_BCM54210E, 0xfffffff0 }, |
| { PHY_ID_BCM5461, 0xfffffff0 }, |
| { PHY_ID_BCM54612E, 0xfffffff0 }, |
| { PHY_ID_BCM54616S, 0xfffffff0 }, |
| { PHY_ID_BCM5464, 0xfffffff0 }, |
| { PHY_ID_BCM5481, 0xfffffff0 }, |
| { PHY_ID_BCM54810, 0xfffffff0 }, |
| { PHY_ID_BCM54811, 0xfffffff0 }, |
| { PHY_ID_BCM5482, 0xfffffff0 }, |
| { PHY_ID_BCM50610, 0xfffffff0 }, |
| { PHY_ID_BCM50610M, 0xfffffff0 }, |
| { PHY_ID_BCM57780, 0xfffffff0 }, |
| { PHY_ID_BCMAC131, 0xfffffff0 }, |
| { PHY_ID_BCM5241, 0xfffffff0 }, |
| { PHY_ID_BCM5395, 0xfffffff0 }, |
| { PHY_ID_BCM53125, 0xfffffff0 }, |
| { PHY_ID_BCM89610, 0xfffffff0 }, |
| { } |
| }; |
| |
| MODULE_DEVICE_TABLE(mdio, broadcom_tbl); |