/drivers/net/phy/marvell.c
http://github.com/mirrors/linux · C · 2485 lines · 1891 code · 404 blank · 190 comment · 262 complexity · a19fcc66eae61925c1beed4ce29d113e MD5 · raw file
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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * drivers/net/phy/marvell.c
- *
- * Driver for Marvell PHYs
- *
- * Author: Andy Fleming
- *
- * Copyright (c) 2004 Freescale Semiconductor, Inc.
- *
- * Copyright (c) 2013 Michael Stapelberg <michael@stapelberg.de>
- */
- #include <linux/kernel.h>
- #include <linux/string.h>
- #include <linux/ctype.h>
- #include <linux/errno.h>
- #include <linux/unistd.h>
- #include <linux/hwmon.h>
- #include <linux/interrupt.h>
- #include <linux/init.h>
- #include <linux/delay.h>
- #include <linux/netdevice.h>
- #include <linux/etherdevice.h>
- #include <linux/skbuff.h>
- #include <linux/spinlock.h>
- #include <linux/mm.h>
- #include <linux/module.h>
- #include <linux/mii.h>
- #include <linux/ethtool.h>
- #include <linux/phy.h>
- #include <linux/marvell_phy.h>
- #include <linux/bitfield.h>
- #include <linux/of.h>
- #include <linux/io.h>
- #include <asm/irq.h>
- #include <linux/uaccess.h>
- #define MII_MARVELL_PHY_PAGE 22
- #define MII_MARVELL_COPPER_PAGE 0x00
- #define MII_MARVELL_FIBER_PAGE 0x01
- #define MII_MARVELL_MSCR_PAGE 0x02
- #define MII_MARVELL_LED_PAGE 0x03
- #define MII_MARVELL_MISC_TEST_PAGE 0x06
- #define MII_MARVELL_WOL_PAGE 0x11
- #define MII_M1011_IEVENT 0x13
- #define MII_M1011_IEVENT_CLEAR 0x0000
- #define MII_M1011_IMASK 0x12
- #define MII_M1011_IMASK_INIT 0x6400
- #define MII_M1011_IMASK_CLEAR 0x0000
- #define MII_M1011_PHY_SCR 0x10
- #define MII_M1011_PHY_SCR_DOWNSHIFT_EN BIT(11)
- #define MII_M1011_PHY_SCR_DOWNSHIFT_MASK GENMASK(14, 12)
- #define MII_M1011_PHY_SCR_DOWNSHIFT_MAX 8
- #define MII_M1011_PHY_SCR_MDI (0x0 << 5)
- #define MII_M1011_PHY_SCR_MDI_X (0x1 << 5)
- #define MII_M1011_PHY_SCR_AUTO_CROSS (0x3 << 5)
- #define MII_M1011_PHY_SSR 0x11
- #define MII_M1011_PHY_SSR_DOWNSHIFT BIT(5)
- #define MII_M1111_PHY_LED_CONTROL 0x18
- #define MII_M1111_PHY_LED_DIRECT 0x4100
- #define MII_M1111_PHY_LED_COMBINE 0x411c
- #define MII_M1111_PHY_EXT_CR 0x14
- #define MII_M1111_PHY_EXT_CR_DOWNSHIFT_MASK GENMASK(11, 9)
- #define MII_M1111_PHY_EXT_CR_DOWNSHIFT_MAX 8
- #define MII_M1111_PHY_EXT_CR_DOWNSHIFT_EN BIT(8)
- #define MII_M1111_RGMII_RX_DELAY BIT(7)
- #define MII_M1111_RGMII_TX_DELAY BIT(1)
- #define MII_M1111_PHY_EXT_SR 0x1b
- #define MII_M1111_HWCFG_MODE_MASK 0xf
- #define MII_M1111_HWCFG_MODE_FIBER_RGMII 0x3
- #define MII_M1111_HWCFG_MODE_SGMII_NO_CLK 0x4
- #define MII_M1111_HWCFG_MODE_RTBI 0x7
- #define MII_M1111_HWCFG_MODE_COPPER_RTBI 0x9
- #define MII_M1111_HWCFG_MODE_COPPER_RGMII 0xb
- #define MII_M1111_HWCFG_FIBER_COPPER_RES BIT(13)
- #define MII_M1111_HWCFG_FIBER_COPPER_AUTO BIT(15)
- #define MII_88E1121_PHY_MSCR_REG 21
- #define MII_88E1121_PHY_MSCR_RX_DELAY BIT(5)
- #define MII_88E1121_PHY_MSCR_TX_DELAY BIT(4)
- #define MII_88E1121_PHY_MSCR_DELAY_MASK (BIT(5) | BIT(4))
- #define MII_88E1121_MISC_TEST 0x1a
- #define MII_88E1510_MISC_TEST_TEMP_THRESHOLD_MASK 0x1f00
- #define MII_88E1510_MISC_TEST_TEMP_THRESHOLD_SHIFT 8
- #define MII_88E1510_MISC_TEST_TEMP_IRQ_EN BIT(7)
- #define MII_88E1510_MISC_TEST_TEMP_IRQ BIT(6)
- #define MII_88E1121_MISC_TEST_TEMP_SENSOR_EN BIT(5)
- #define MII_88E1121_MISC_TEST_TEMP_MASK 0x1f
- #define MII_88E1510_TEMP_SENSOR 0x1b
- #define MII_88E1510_TEMP_SENSOR_MASK 0xff
- #define MII_88E1540_COPPER_CTRL3 0x1a
- #define MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_MASK GENMASK(11, 10)
- #define MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_00MS 0
- #define MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_10MS 1
- #define MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_20MS 2
- #define MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_40MS 3
- #define MII_88E1540_COPPER_CTRL3_FAST_LINK_DOWN BIT(9)
- #define MII_88E6390_MISC_TEST 0x1b
- #define MII_88E6390_MISC_TEST_SAMPLE_1S 0
- #define MII_88E6390_MISC_TEST_SAMPLE_10MS BIT(14)
- #define MII_88E6390_MISC_TEST_SAMPLE_DISABLE BIT(15)
- #define MII_88E6390_MISC_TEST_SAMPLE_ENABLE 0
- #define MII_88E6390_MISC_TEST_SAMPLE_MASK (0x3 << 14)
- #define MII_88E6390_TEMP_SENSOR 0x1c
- #define MII_88E6390_TEMP_SENSOR_MASK 0xff
- #define MII_88E6390_TEMP_SENSOR_SAMPLES 10
- #define MII_88E1318S_PHY_MSCR1_REG 16
- #define MII_88E1318S_PHY_MSCR1_PAD_ODD BIT(6)
- /* Copper Specific Interrupt Enable Register */
- #define MII_88E1318S_PHY_CSIER 0x12
- /* WOL Event Interrupt Enable */
- #define MII_88E1318S_PHY_CSIER_WOL_EIE BIT(7)
- /* LED Timer Control Register */
- #define MII_88E1318S_PHY_LED_TCR 0x12
- #define MII_88E1318S_PHY_LED_TCR_FORCE_INT BIT(15)
- #define MII_88E1318S_PHY_LED_TCR_INTn_ENABLE BIT(7)
- #define MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW BIT(11)
- /* Magic Packet MAC address registers */
- #define MII_88E1318S_PHY_MAGIC_PACKET_WORD2 0x17
- #define MII_88E1318S_PHY_MAGIC_PACKET_WORD1 0x18
- #define MII_88E1318S_PHY_MAGIC_PACKET_WORD0 0x19
- #define MII_88E1318S_PHY_WOL_CTRL 0x10
- #define MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS BIT(12)
- #define MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE BIT(14)
- #define MII_PHY_LED_CTRL 16
- #define MII_88E1121_PHY_LED_DEF 0x0030
- #define MII_88E1510_PHY_LED_DEF 0x1177
- #define MII_88E1510_PHY_LED0_LINK_LED1_ACTIVE 0x1040
- #define MII_M1011_PHY_STATUS 0x11
- #define MII_M1011_PHY_STATUS_1000 0x8000
- #define MII_M1011_PHY_STATUS_100 0x4000
- #define MII_M1011_PHY_STATUS_SPD_MASK 0xc000
- #define MII_M1011_PHY_STATUS_FULLDUPLEX 0x2000
- #define MII_M1011_PHY_STATUS_RESOLVED 0x0800
- #define MII_M1011_PHY_STATUS_LINK 0x0400
- #define MII_88E3016_PHY_SPEC_CTRL 0x10
- #define MII_88E3016_DISABLE_SCRAMBLER 0x0200
- #define MII_88E3016_AUTO_MDIX_CROSSOVER 0x0030
- #define MII_88E1510_GEN_CTRL_REG_1 0x14
- #define MII_88E1510_GEN_CTRL_REG_1_MODE_MASK 0x7
- #define MII_88E1510_GEN_CTRL_REG_1_MODE_SGMII 0x1 /* SGMII to copper */
- #define MII_88E1510_GEN_CTRL_REG_1_RESET 0x8000 /* Soft reset */
- #define LPA_PAUSE_FIBER 0x180
- #define LPA_PAUSE_ASYM_FIBER 0x100
- #define NB_FIBER_STATS 1
- MODULE_DESCRIPTION("Marvell PHY driver");
- MODULE_AUTHOR("Andy Fleming");
- MODULE_LICENSE("GPL");
- struct marvell_hw_stat {
- const char *string;
- u8 page;
- u8 reg;
- u8 bits;
- };
- static struct marvell_hw_stat marvell_hw_stats[] = {
- { "phy_receive_errors_copper", 0, 21, 16},
- { "phy_idle_errors", 0, 10, 8 },
- { "phy_receive_errors_fiber", 1, 21, 16},
- };
- struct marvell_priv {
- u64 stats[ARRAY_SIZE(marvell_hw_stats)];
- char *hwmon_name;
- struct device *hwmon_dev;
- };
- static int marvell_read_page(struct phy_device *phydev)
- {
- return __phy_read(phydev, MII_MARVELL_PHY_PAGE);
- }
- static int marvell_write_page(struct phy_device *phydev, int page)
- {
- return __phy_write(phydev, MII_MARVELL_PHY_PAGE, page);
- }
- static int marvell_set_page(struct phy_device *phydev, int page)
- {
- return phy_write(phydev, MII_MARVELL_PHY_PAGE, page);
- }
- static int marvell_ack_interrupt(struct phy_device *phydev)
- {
- int err;
- /* Clear the interrupts by reading the reg */
- err = phy_read(phydev, MII_M1011_IEVENT);
- if (err < 0)
- return err;
- return 0;
- }
- static int marvell_config_intr(struct phy_device *phydev)
- {
- int err;
- if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
- err = phy_write(phydev, MII_M1011_IMASK,
- MII_M1011_IMASK_INIT);
- else
- err = phy_write(phydev, MII_M1011_IMASK,
- MII_M1011_IMASK_CLEAR);
- return err;
- }
- static int marvell_set_polarity(struct phy_device *phydev, int polarity)
- {
- int reg;
- int err;
- int val;
- /* get the current settings */
- reg = phy_read(phydev, MII_M1011_PHY_SCR);
- if (reg < 0)
- return reg;
- val = reg;
- val &= ~MII_M1011_PHY_SCR_AUTO_CROSS;
- switch (polarity) {
- case ETH_TP_MDI:
- val |= MII_M1011_PHY_SCR_MDI;
- break;
- case ETH_TP_MDI_X:
- val |= MII_M1011_PHY_SCR_MDI_X;
- break;
- case ETH_TP_MDI_AUTO:
- case ETH_TP_MDI_INVALID:
- default:
- val |= MII_M1011_PHY_SCR_AUTO_CROSS;
- break;
- }
- if (val != reg) {
- /* Set the new polarity value in the register */
- err = phy_write(phydev, MII_M1011_PHY_SCR, val);
- if (err)
- return err;
- }
- return val != reg;
- }
- static int marvell_config_aneg(struct phy_device *phydev)
- {
- int changed = 0;
- int err;
- err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
- if (err < 0)
- return err;
- changed = err;
- err = phy_write(phydev, MII_M1111_PHY_LED_CONTROL,
- MII_M1111_PHY_LED_DIRECT);
- if (err < 0)
- return err;
- err = genphy_config_aneg(phydev);
- if (err < 0)
- return err;
- if (phydev->autoneg != AUTONEG_ENABLE || changed) {
- /* A write to speed/duplex bits (that is performed by
- * genphy_config_aneg() call above) must be followed by
- * a software reset. Otherwise, the write has no effect.
- */
- err = genphy_soft_reset(phydev);
- if (err < 0)
- return err;
- }
- return 0;
- }
- static int m88e1101_config_aneg(struct phy_device *phydev)
- {
- int err;
- /* This Marvell PHY has an errata which requires
- * that certain registers get written in order
- * to restart autonegotiation
- */
- err = genphy_soft_reset(phydev);
- if (err < 0)
- return err;
- err = phy_write(phydev, 0x1d, 0x1f);
- if (err < 0)
- return err;
- err = phy_write(phydev, 0x1e, 0x200c);
- if (err < 0)
- return err;
- err = phy_write(phydev, 0x1d, 0x5);
- if (err < 0)
- return err;
- err = phy_write(phydev, 0x1e, 0);
- if (err < 0)
- return err;
- err = phy_write(phydev, 0x1e, 0x100);
- if (err < 0)
- return err;
- return marvell_config_aneg(phydev);
- }
- #ifdef CONFIG_OF_MDIO
- /* Set and/or override some configuration registers based on the
- * marvell,reg-init property stored in the of_node for the phydev.
- *
- * marvell,reg-init = <reg-page reg mask value>,...;
- *
- * There may be one or more sets of <reg-page reg mask value>:
- *
- * reg-page: which register bank to use.
- * reg: the register.
- * mask: if non-zero, ANDed with existing register value.
- * value: ORed with the masked value and written to the regiser.
- *
- */
- static int marvell_of_reg_init(struct phy_device *phydev)
- {
- const __be32 *paddr;
- int len, i, saved_page, current_page, ret = 0;
- if (!phydev->mdio.dev.of_node)
- return 0;
- paddr = of_get_property(phydev->mdio.dev.of_node,
- "marvell,reg-init", &len);
- if (!paddr || len < (4 * sizeof(*paddr)))
- return 0;
- saved_page = phy_save_page(phydev);
- if (saved_page < 0)
- goto err;
- current_page = saved_page;
- len /= sizeof(*paddr);
- for (i = 0; i < len - 3; i += 4) {
- u16 page = be32_to_cpup(paddr + i);
- u16 reg = be32_to_cpup(paddr + i + 1);
- u16 mask = be32_to_cpup(paddr + i + 2);
- u16 val_bits = be32_to_cpup(paddr + i + 3);
- int val;
- if (page != current_page) {
- current_page = page;
- ret = marvell_write_page(phydev, page);
- if (ret < 0)
- goto err;
- }
- val = 0;
- if (mask) {
- val = __phy_read(phydev, reg);
- if (val < 0) {
- ret = val;
- goto err;
- }
- val &= mask;
- }
- val |= val_bits;
- ret = __phy_write(phydev, reg, val);
- if (ret < 0)
- goto err;
- }
- err:
- return phy_restore_page(phydev, saved_page, ret);
- }
- #else
- static int marvell_of_reg_init(struct phy_device *phydev)
- {
- return 0;
- }
- #endif /* CONFIG_OF_MDIO */
- static int m88e1121_config_aneg_rgmii_delays(struct phy_device *phydev)
- {
- int mscr;
- if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
- mscr = MII_88E1121_PHY_MSCR_RX_DELAY |
- MII_88E1121_PHY_MSCR_TX_DELAY;
- else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
- mscr = MII_88E1121_PHY_MSCR_RX_DELAY;
- else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
- mscr = MII_88E1121_PHY_MSCR_TX_DELAY;
- else
- mscr = 0;
- return phy_modify_paged(phydev, MII_MARVELL_MSCR_PAGE,
- MII_88E1121_PHY_MSCR_REG,
- MII_88E1121_PHY_MSCR_DELAY_MASK, mscr);
- }
- static int m88e1121_config_aneg(struct phy_device *phydev)
- {
- int changed = 0;
- int err = 0;
- if (phy_interface_is_rgmii(phydev)) {
- err = m88e1121_config_aneg_rgmii_delays(phydev);
- if (err < 0)
- return err;
- }
- err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
- if (err < 0)
- return err;
- changed = err;
- err = genphy_config_aneg(phydev);
- if (err < 0)
- return err;
- if (phydev->autoneg != AUTONEG_ENABLE || changed) {
- /* A software reset is used to ensure a "commit" of the
- * changes is done.
- */
- err = genphy_soft_reset(phydev);
- if (err < 0)
- return err;
- }
- return 0;
- }
- static int m88e1318_config_aneg(struct phy_device *phydev)
- {
- int err;
- err = phy_modify_paged(phydev, MII_MARVELL_MSCR_PAGE,
- MII_88E1318S_PHY_MSCR1_REG,
- 0, MII_88E1318S_PHY_MSCR1_PAD_ODD);
- if (err < 0)
- return err;
- return m88e1121_config_aneg(phydev);
- }
- /**
- * linkmode_adv_to_fiber_adv_t
- * @advertise: the linkmode advertisement settings
- *
- * A small helper function that translates linkmode advertisement
- * settings to phy autonegotiation advertisements for the MII_ADV
- * register for fiber link.
- */
- static inline u32 linkmode_adv_to_fiber_adv_t(unsigned long *advertise)
- {
- u32 result = 0;
- if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT, advertise))
- result |= ADVERTISE_1000XHALF;
- if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, advertise))
- result |= ADVERTISE_1000XFULL;
- if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertise) &&
- linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertise))
- result |= ADVERTISE_1000XPSE_ASYM;
- else if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertise))
- result |= ADVERTISE_1000XPAUSE;
- return result;
- }
- /**
- * marvell_config_aneg_fiber - restart auto-negotiation or write BMCR
- * @phydev: target phy_device struct
- *
- * Description: If auto-negotiation is enabled, we configure the
- * advertising, and then restart auto-negotiation. If it is not
- * enabled, then we write the BMCR. Adapted for fiber link in
- * some Marvell's devices.
- */
- static int marvell_config_aneg_fiber(struct phy_device *phydev)
- {
- int changed = 0;
- int err;
- u16 adv;
- if (phydev->autoneg != AUTONEG_ENABLE)
- return genphy_setup_forced(phydev);
- /* Only allow advertising what this PHY supports */
- linkmode_and(phydev->advertising, phydev->advertising,
- phydev->supported);
- adv = linkmode_adv_to_fiber_adv_t(phydev->advertising);
- /* Setup fiber advertisement */
- err = phy_modify_changed(phydev, MII_ADVERTISE,
- ADVERTISE_1000XHALF | ADVERTISE_1000XFULL |
- ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM,
- adv);
- if (err < 0)
- return err;
- if (err > 0)
- changed = 1;
- return genphy_check_and_restart_aneg(phydev, changed);
- }
- static int m88e1510_config_aneg(struct phy_device *phydev)
- {
- int err;
- err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- if (err < 0)
- goto error;
- /* Configure the copper link first */
- err = m88e1318_config_aneg(phydev);
- if (err < 0)
- goto error;
- /* Do not touch the fiber page if we're in copper->sgmii mode */
- if (phydev->interface == PHY_INTERFACE_MODE_SGMII)
- return 0;
- /* Then the fiber link */
- err = marvell_set_page(phydev, MII_MARVELL_FIBER_PAGE);
- if (err < 0)
- goto error;
- err = marvell_config_aneg_fiber(phydev);
- if (err < 0)
- goto error;
- return marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- error:
- marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- return err;
- }
- static void marvell_config_led(struct phy_device *phydev)
- {
- u16 def_config;
- int err;
- switch (MARVELL_PHY_FAMILY_ID(phydev->phy_id)) {
- /* Default PHY LED config: LED[0] .. Link, LED[1] .. Activity */
- case MARVELL_PHY_FAMILY_ID(MARVELL_PHY_ID_88E1121R):
- case MARVELL_PHY_FAMILY_ID(MARVELL_PHY_ID_88E1318S):
- def_config = MII_88E1121_PHY_LED_DEF;
- break;
- /* Default PHY LED config:
- * LED[0] .. 1000Mbps Link
- * LED[1] .. 100Mbps Link
- * LED[2] .. Blink, Activity
- */
- case MARVELL_PHY_FAMILY_ID(MARVELL_PHY_ID_88E1510):
- if (phydev->dev_flags & MARVELL_PHY_LED0_LINK_LED1_ACTIVE)
- def_config = MII_88E1510_PHY_LED0_LINK_LED1_ACTIVE;
- else
- def_config = MII_88E1510_PHY_LED_DEF;
- break;
- default:
- return;
- }
- err = phy_write_paged(phydev, MII_MARVELL_LED_PAGE, MII_PHY_LED_CTRL,
- def_config);
- if (err < 0)
- phydev_warn(phydev, "Fail to config marvell phy LED.\n");
- }
- static int marvell_config_init(struct phy_device *phydev)
- {
- /* Set defalut LED */
- marvell_config_led(phydev);
- /* Set registers from marvell,reg-init DT property */
- return marvell_of_reg_init(phydev);
- }
- static int m88e3016_config_init(struct phy_device *phydev)
- {
- int ret;
- /* Enable Scrambler and Auto-Crossover */
- ret = phy_modify(phydev, MII_88E3016_PHY_SPEC_CTRL,
- MII_88E3016_DISABLE_SCRAMBLER,
- MII_88E3016_AUTO_MDIX_CROSSOVER);
- if (ret < 0)
- return ret;
- return marvell_config_init(phydev);
- }
- static int m88e1111_config_init_hwcfg_mode(struct phy_device *phydev,
- u16 mode,
- int fibre_copper_auto)
- {
- if (fibre_copper_auto)
- mode |= MII_M1111_HWCFG_FIBER_COPPER_AUTO;
- return phy_modify(phydev, MII_M1111_PHY_EXT_SR,
- MII_M1111_HWCFG_MODE_MASK |
- MII_M1111_HWCFG_FIBER_COPPER_AUTO |
- MII_M1111_HWCFG_FIBER_COPPER_RES,
- mode);
- }
- static int m88e1111_config_init_rgmii_delays(struct phy_device *phydev)
- {
- int delay;
- if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
- delay = MII_M1111_RGMII_RX_DELAY | MII_M1111_RGMII_TX_DELAY;
- } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
- delay = MII_M1111_RGMII_RX_DELAY;
- } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
- delay = MII_M1111_RGMII_TX_DELAY;
- } else {
- delay = 0;
- }
- return phy_modify(phydev, MII_M1111_PHY_EXT_CR,
- MII_M1111_RGMII_RX_DELAY | MII_M1111_RGMII_TX_DELAY,
- delay);
- }
- static int m88e1111_config_init_rgmii(struct phy_device *phydev)
- {
- int temp;
- int err;
- err = m88e1111_config_init_rgmii_delays(phydev);
- if (err < 0)
- return err;
- temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
- if (temp < 0)
- return temp;
- temp &= ~(MII_M1111_HWCFG_MODE_MASK);
- if (temp & MII_M1111_HWCFG_FIBER_COPPER_RES)
- temp |= MII_M1111_HWCFG_MODE_FIBER_RGMII;
- else
- temp |= MII_M1111_HWCFG_MODE_COPPER_RGMII;
- return phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
- }
- static int m88e1111_config_init_sgmii(struct phy_device *phydev)
- {
- int err;
- err = m88e1111_config_init_hwcfg_mode(
- phydev,
- MII_M1111_HWCFG_MODE_SGMII_NO_CLK,
- MII_M1111_HWCFG_FIBER_COPPER_AUTO);
- if (err < 0)
- return err;
- /* make sure copper is selected */
- return marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- }
- static int m88e1111_config_init_rtbi(struct phy_device *phydev)
- {
- int err;
- err = m88e1111_config_init_rgmii_delays(phydev);
- if (err < 0)
- return err;
- err = m88e1111_config_init_hwcfg_mode(
- phydev,
- MII_M1111_HWCFG_MODE_RTBI,
- MII_M1111_HWCFG_FIBER_COPPER_AUTO);
- if (err < 0)
- return err;
- /* soft reset */
- err = genphy_soft_reset(phydev);
- if (err < 0)
- return err;
- return m88e1111_config_init_hwcfg_mode(
- phydev,
- MII_M1111_HWCFG_MODE_RTBI,
- MII_M1111_HWCFG_FIBER_COPPER_AUTO);
- }
- static int m88e1111_config_init(struct phy_device *phydev)
- {
- int err;
- if (phy_interface_is_rgmii(phydev)) {
- err = m88e1111_config_init_rgmii(phydev);
- if (err < 0)
- return err;
- }
- if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
- err = m88e1111_config_init_sgmii(phydev);
- if (err < 0)
- return err;
- }
- if (phydev->interface == PHY_INTERFACE_MODE_RTBI) {
- err = m88e1111_config_init_rtbi(phydev);
- if (err < 0)
- return err;
- }
- err = marvell_of_reg_init(phydev);
- if (err < 0)
- return err;
- return genphy_soft_reset(phydev);
- }
- static int m88e1111_get_downshift(struct phy_device *phydev, u8 *data)
- {
- int val, cnt, enable;
- val = phy_read(phydev, MII_M1111_PHY_EXT_CR);
- if (val < 0)
- return val;
- enable = FIELD_GET(MII_M1111_PHY_EXT_CR_DOWNSHIFT_EN, val);
- cnt = FIELD_GET(MII_M1111_PHY_EXT_CR_DOWNSHIFT_MASK, val) + 1;
- *data = enable ? cnt : DOWNSHIFT_DEV_DISABLE;
- return 0;
- }
- static int m88e1111_set_downshift(struct phy_device *phydev, u8 cnt)
- {
- int val;
- if (cnt > MII_M1111_PHY_EXT_CR_DOWNSHIFT_MAX)
- return -E2BIG;
- if (!cnt)
- return phy_clear_bits(phydev, MII_M1111_PHY_EXT_CR,
- MII_M1111_PHY_EXT_CR_DOWNSHIFT_EN);
- val = MII_M1111_PHY_EXT_CR_DOWNSHIFT_EN;
- val |= FIELD_PREP(MII_M1111_PHY_EXT_CR_DOWNSHIFT_MASK, cnt - 1);
- return phy_modify(phydev, MII_M1111_PHY_EXT_CR,
- MII_M1111_PHY_EXT_CR_DOWNSHIFT_EN |
- MII_M1111_PHY_EXT_CR_DOWNSHIFT_MASK,
- val);
- }
- static int m88e1111_get_tunable(struct phy_device *phydev,
- struct ethtool_tunable *tuna, void *data)
- {
- switch (tuna->id) {
- case ETHTOOL_PHY_DOWNSHIFT:
- return m88e1111_get_downshift(phydev, data);
- default:
- return -EOPNOTSUPP;
- }
- }
- static int m88e1111_set_tunable(struct phy_device *phydev,
- struct ethtool_tunable *tuna, const void *data)
- {
- switch (tuna->id) {
- case ETHTOOL_PHY_DOWNSHIFT:
- return m88e1111_set_downshift(phydev, *(const u8 *)data);
- default:
- return -EOPNOTSUPP;
- }
- }
- static int m88e1011_get_downshift(struct phy_device *phydev, u8 *data)
- {
- int val, cnt, enable;
- val = phy_read(phydev, MII_M1011_PHY_SCR);
- if (val < 0)
- return val;
- enable = FIELD_GET(MII_M1011_PHY_SCR_DOWNSHIFT_EN, val);
- cnt = FIELD_GET(MII_M1011_PHY_SCR_DOWNSHIFT_MASK, val) + 1;
- *data = enable ? cnt : DOWNSHIFT_DEV_DISABLE;
- return 0;
- }
- static int m88e1011_set_downshift(struct phy_device *phydev, u8 cnt)
- {
- int val;
- if (cnt > MII_M1011_PHY_SCR_DOWNSHIFT_MAX)
- return -E2BIG;
- if (!cnt)
- return phy_clear_bits(phydev, MII_M1011_PHY_SCR,
- MII_M1011_PHY_SCR_DOWNSHIFT_EN);
- val = MII_M1011_PHY_SCR_DOWNSHIFT_EN;
- val |= FIELD_PREP(MII_M1011_PHY_SCR_DOWNSHIFT_MASK, cnt - 1);
- return phy_modify(phydev, MII_M1011_PHY_SCR,
- MII_M1011_PHY_SCR_DOWNSHIFT_EN |
- MII_M1011_PHY_SCR_DOWNSHIFT_MASK,
- val);
- }
- static int m88e1011_get_tunable(struct phy_device *phydev,
- struct ethtool_tunable *tuna, void *data)
- {
- switch (tuna->id) {
- case ETHTOOL_PHY_DOWNSHIFT:
- return m88e1011_get_downshift(phydev, data);
- default:
- return -EOPNOTSUPP;
- }
- }
- static int m88e1011_set_tunable(struct phy_device *phydev,
- struct ethtool_tunable *tuna, const void *data)
- {
- switch (tuna->id) {
- case ETHTOOL_PHY_DOWNSHIFT:
- return m88e1011_set_downshift(phydev, *(const u8 *)data);
- default:
- return -EOPNOTSUPP;
- }
- }
- static int m88e1116r_config_init(struct phy_device *phydev)
- {
- int err;
- err = genphy_soft_reset(phydev);
- if (err < 0)
- return err;
- msleep(500);
- err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- if (err < 0)
- return err;
- err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
- if (err < 0)
- return err;
- err = m88e1011_set_downshift(phydev, 8);
- if (err < 0)
- return err;
- if (phy_interface_is_rgmii(phydev)) {
- err = m88e1121_config_aneg_rgmii_delays(phydev);
- if (err < 0)
- return err;
- }
- err = genphy_soft_reset(phydev);
- if (err < 0)
- return err;
- return marvell_config_init(phydev);
- }
- static int m88e1318_config_init(struct phy_device *phydev)
- {
- if (phy_interrupt_is_valid(phydev)) {
- int err = phy_modify_paged(
- phydev, MII_MARVELL_LED_PAGE,
- MII_88E1318S_PHY_LED_TCR,
- MII_88E1318S_PHY_LED_TCR_FORCE_INT,
- MII_88E1318S_PHY_LED_TCR_INTn_ENABLE |
- MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW);
- if (err < 0)
- return err;
- }
- return marvell_config_init(phydev);
- }
- static int m88e1510_config_init(struct phy_device *phydev)
- {
- int err;
- /* SGMII-to-Copper mode initialization */
- if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
- /* Select page 18 */
- err = marvell_set_page(phydev, 18);
- if (err < 0)
- return err;
- /* In reg 20, write MODE[2:0] = 0x1 (SGMII to Copper) */
- err = phy_modify(phydev, MII_88E1510_GEN_CTRL_REG_1,
- MII_88E1510_GEN_CTRL_REG_1_MODE_MASK,
- MII_88E1510_GEN_CTRL_REG_1_MODE_SGMII);
- if (err < 0)
- return err;
- /* PHY reset is necessary after changing MODE[2:0] */
- err = phy_modify(phydev, MII_88E1510_GEN_CTRL_REG_1, 0,
- MII_88E1510_GEN_CTRL_REG_1_RESET);
- if (err < 0)
- return err;
- /* Reset page selection */
- err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- if (err < 0)
- return err;
- }
- return m88e1318_config_init(phydev);
- }
- static int m88e1118_config_aneg(struct phy_device *phydev)
- {
- int err;
- err = genphy_soft_reset(phydev);
- if (err < 0)
- return err;
- err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
- if (err < 0)
- return err;
- err = genphy_config_aneg(phydev);
- return 0;
- }
- static int m88e1118_config_init(struct phy_device *phydev)
- {
- int err;
- /* Change address */
- err = marvell_set_page(phydev, MII_MARVELL_MSCR_PAGE);
- if (err < 0)
- return err;
- /* Enable 1000 Mbit */
- err = phy_write(phydev, 0x15, 0x1070);
- if (err < 0)
- return err;
- /* Change address */
- err = marvell_set_page(phydev, MII_MARVELL_LED_PAGE);
- if (err < 0)
- return err;
- /* Adjust LED Control */
- if (phydev->dev_flags & MARVELL_PHY_M1118_DNS323_LEDS)
- err = phy_write(phydev, 0x10, 0x1100);
- else
- err = phy_write(phydev, 0x10, 0x021e);
- if (err < 0)
- return err;
- err = marvell_of_reg_init(phydev);
- if (err < 0)
- return err;
- /* Reset address */
- err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- if (err < 0)
- return err;
- return genphy_soft_reset(phydev);
- }
- static int m88e1149_config_init(struct phy_device *phydev)
- {
- int err;
- /* Change address */
- err = marvell_set_page(phydev, MII_MARVELL_MSCR_PAGE);
- if (err < 0)
- return err;
- /* Enable 1000 Mbit */
- err = phy_write(phydev, 0x15, 0x1048);
- if (err < 0)
- return err;
- err = marvell_of_reg_init(phydev);
- if (err < 0)
- return err;
- /* Reset address */
- err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- if (err < 0)
- return err;
- return genphy_soft_reset(phydev);
- }
- static int m88e1145_config_init_rgmii(struct phy_device *phydev)
- {
- int err;
- err = m88e1111_config_init_rgmii_delays(phydev);
- if (err < 0)
- return err;
- if (phydev->dev_flags & MARVELL_PHY_M1145_FLAGS_RESISTANCE) {
- err = phy_write(phydev, 0x1d, 0x0012);
- if (err < 0)
- return err;
- err = phy_modify(phydev, 0x1e, 0x0fc0,
- 2 << 9 | /* 36 ohm */
- 2 << 6); /* 39 ohm */
- if (err < 0)
- return err;
- err = phy_write(phydev, 0x1d, 0x3);
- if (err < 0)
- return err;
- err = phy_write(phydev, 0x1e, 0x8000);
- }
- return err;
- }
- static int m88e1145_config_init_sgmii(struct phy_device *phydev)
- {
- return m88e1111_config_init_hwcfg_mode(
- phydev, MII_M1111_HWCFG_MODE_SGMII_NO_CLK,
- MII_M1111_HWCFG_FIBER_COPPER_AUTO);
- }
- static int m88e1145_config_init(struct phy_device *phydev)
- {
- int err;
- /* Take care of errata E0 & E1 */
- err = phy_write(phydev, 0x1d, 0x001b);
- if (err < 0)
- return err;
- err = phy_write(phydev, 0x1e, 0x418f);
- if (err < 0)
- return err;
- err = phy_write(phydev, 0x1d, 0x0016);
- if (err < 0)
- return err;
- err = phy_write(phydev, 0x1e, 0xa2da);
- if (err < 0)
- return err;
- if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
- err = m88e1145_config_init_rgmii(phydev);
- if (err < 0)
- return err;
- }
- if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
- err = m88e1145_config_init_sgmii(phydev);
- if (err < 0)
- return err;
- }
- err = marvell_of_reg_init(phydev);
- if (err < 0)
- return err;
- return 0;
- }
- static int m88e1540_get_fld(struct phy_device *phydev, u8 *msecs)
- {
- int val;
- val = phy_read(phydev, MII_88E1540_COPPER_CTRL3);
- if (val < 0)
- return val;
- if (!(val & MII_88E1540_COPPER_CTRL3_FAST_LINK_DOWN)) {
- *msecs = ETHTOOL_PHY_FAST_LINK_DOWN_OFF;
- return 0;
- }
- val = FIELD_GET(MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_MASK, val);
- switch (val) {
- case MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_00MS:
- *msecs = 0;
- break;
- case MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_10MS:
- *msecs = 10;
- break;
- case MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_20MS:
- *msecs = 20;
- break;
- case MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_40MS:
- *msecs = 40;
- break;
- default:
- return -EINVAL;
- }
- return 0;
- }
- static int m88e1540_set_fld(struct phy_device *phydev, const u8 *msecs)
- {
- struct ethtool_eee eee;
- int val, ret;
- if (*msecs == ETHTOOL_PHY_FAST_LINK_DOWN_OFF)
- return phy_clear_bits(phydev, MII_88E1540_COPPER_CTRL3,
- MII_88E1540_COPPER_CTRL3_FAST_LINK_DOWN);
- /* According to the Marvell data sheet EEE must be disabled for
- * Fast Link Down detection to work properly
- */
- ret = phy_ethtool_get_eee(phydev, &eee);
- if (!ret && eee.eee_enabled) {
- phydev_warn(phydev, "Fast Link Down detection requires EEE to be disabled!\n");
- return -EBUSY;
- }
- if (*msecs <= 5)
- val = MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_00MS;
- else if (*msecs <= 15)
- val = MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_10MS;
- else if (*msecs <= 30)
- val = MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_20MS;
- else
- val = MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_40MS;
- val = FIELD_PREP(MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_MASK, val);
- ret = phy_modify(phydev, MII_88E1540_COPPER_CTRL3,
- MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_MASK, val);
- if (ret)
- return ret;
- return phy_set_bits(phydev, MII_88E1540_COPPER_CTRL3,
- MII_88E1540_COPPER_CTRL3_FAST_LINK_DOWN);
- }
- static int m88e1540_get_tunable(struct phy_device *phydev,
- struct ethtool_tunable *tuna, void *data)
- {
- switch (tuna->id) {
- case ETHTOOL_PHY_FAST_LINK_DOWN:
- return m88e1540_get_fld(phydev, data);
- case ETHTOOL_PHY_DOWNSHIFT:
- return m88e1011_get_downshift(phydev, data);
- default:
- return -EOPNOTSUPP;
- }
- }
- static int m88e1540_set_tunable(struct phy_device *phydev,
- struct ethtool_tunable *tuna, const void *data)
- {
- switch (tuna->id) {
- case ETHTOOL_PHY_FAST_LINK_DOWN:
- return m88e1540_set_fld(phydev, data);
- case ETHTOOL_PHY_DOWNSHIFT:
- return m88e1011_set_downshift(phydev, *(const u8 *)data);
- default:
- return -EOPNOTSUPP;
- }
- }
- /* The VOD can be out of specification on link up. Poke an
- * undocumented register, in an undocumented page, with a magic value
- * to fix this.
- */
- static int m88e6390_errata(struct phy_device *phydev)
- {
- int err;
- err = phy_write(phydev, MII_BMCR,
- BMCR_ANENABLE | BMCR_SPEED1000 | BMCR_FULLDPLX);
- if (err)
- return err;
- usleep_range(300, 400);
- err = phy_write_paged(phydev, 0xf8, 0x08, 0x36);
- if (err)
- return err;
- return genphy_soft_reset(phydev);
- }
- static int m88e6390_config_aneg(struct phy_device *phydev)
- {
- int err;
- err = m88e6390_errata(phydev);
- if (err)
- return err;
- return m88e1510_config_aneg(phydev);
- }
- /**
- * fiber_lpa_mod_linkmode_lpa_t
- * @advertising: the linkmode advertisement settings
- * @lpa: value of the MII_LPA register for fiber link
- *
- * A small helper function that translates MII_LPA bits to linkmode LP
- * advertisement settings. Other bits in advertising are left
- * unchanged.
- */
- static void fiber_lpa_mod_linkmode_lpa_t(unsigned long *advertising, u32 lpa)
- {
- linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
- advertising, lpa & LPA_1000XHALF);
- linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
- advertising, lpa & LPA_1000XFULL);
- }
- static int marvell_read_status_page_an(struct phy_device *phydev,
- int fiber, int status)
- {
- int lpa;
- int err;
- if (!(status & MII_M1011_PHY_STATUS_RESOLVED)) {
- phydev->link = 0;
- return 0;
- }
- if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
- phydev->duplex = DUPLEX_FULL;
- else
- phydev->duplex = DUPLEX_HALF;
- switch (status & MII_M1011_PHY_STATUS_SPD_MASK) {
- case MII_M1011_PHY_STATUS_1000:
- phydev->speed = SPEED_1000;
- break;
- case MII_M1011_PHY_STATUS_100:
- phydev->speed = SPEED_100;
- break;
- default:
- phydev->speed = SPEED_10;
- break;
- }
- if (!fiber) {
- err = genphy_read_lpa(phydev);
- if (err < 0)
- return err;
- phy_resolve_aneg_pause(phydev);
- } else {
- lpa = phy_read(phydev, MII_LPA);
- if (lpa < 0)
- return lpa;
- /* The fiber link is only 1000M capable */
- fiber_lpa_mod_linkmode_lpa_t(phydev->lp_advertising, lpa);
- if (phydev->duplex == DUPLEX_FULL) {
- if (!(lpa & LPA_PAUSE_FIBER)) {
- phydev->pause = 0;
- phydev->asym_pause = 0;
- } else if ((lpa & LPA_PAUSE_ASYM_FIBER)) {
- phydev->pause = 1;
- phydev->asym_pause = 1;
- } else {
- phydev->pause = 1;
- phydev->asym_pause = 0;
- }
- }
- }
- return 0;
- }
- /* marvell_read_status_page
- *
- * Description:
- * Check the link, then figure out the current state
- * by comparing what we advertise with what the link partner
- * advertises. Start by checking the gigabit possibilities,
- * then move on to 10/100.
- */
- static int marvell_read_status_page(struct phy_device *phydev, int page)
- {
- int status;
- int fiber;
- int err;
- status = phy_read(phydev, MII_M1011_PHY_STATUS);
- if (status < 0)
- return status;
- /* Use the generic register for copper link status,
- * and the PHY status register for fiber link status.
- */
- if (page == MII_MARVELL_FIBER_PAGE) {
- phydev->link = !!(status & MII_M1011_PHY_STATUS_LINK);
- } else {
- err = genphy_update_link(phydev);
- if (err)
- return err;
- }
- if (page == MII_MARVELL_FIBER_PAGE)
- fiber = 1;
- else
- fiber = 0;
- linkmode_zero(phydev->lp_advertising);
- phydev->pause = 0;
- phydev->asym_pause = 0;
- phydev->speed = SPEED_UNKNOWN;
- phydev->duplex = DUPLEX_UNKNOWN;
- if (phydev->autoneg == AUTONEG_ENABLE)
- err = marvell_read_status_page_an(phydev, fiber, status);
- else
- err = genphy_read_status_fixed(phydev);
- return err;
- }
- /* marvell_read_status
- *
- * Some Marvell's phys have two modes: fiber and copper.
- * Both need status checked.
- * Description:
- * First, check the fiber link and status.
- * If the fiber link is down, check the copper link and status which
- * will be the default value if both link are down.
- */
- static int marvell_read_status(struct phy_device *phydev)
- {
- int err;
- /* Check the fiber mode first */
- if (linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT,
- phydev->supported) &&
- phydev->interface != PHY_INTERFACE_MODE_SGMII) {
- err = marvell_set_page(phydev, MII_MARVELL_FIBER_PAGE);
- if (err < 0)
- goto error;
- err = marvell_read_status_page(phydev, MII_MARVELL_FIBER_PAGE);
- if (err < 0)
- goto error;
- /* If the fiber link is up, it is the selected and
- * used link. In this case, we need to stay in the
- * fiber page. Please to be careful about that, avoid
- * to restore Copper page in other functions which
- * could break the behaviour for some fiber phy like
- * 88E1512.
- */
- if (phydev->link)
- return 0;
- /* If fiber link is down, check and save copper mode state */
- err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- if (err < 0)
- goto error;
- }
- return marvell_read_status_page(phydev, MII_MARVELL_COPPER_PAGE);
- error:
- marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- return err;
- }
- /* marvell_suspend
- *
- * Some Marvell's phys have two modes: fiber and copper.
- * Both need to be suspended
- */
- static int marvell_suspend(struct phy_device *phydev)
- {
- int err;
- /* Suspend the fiber mode first */
- if (!linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT,
- phydev->supported)) {
- err = marvell_set_page(phydev, MII_MARVELL_FIBER_PAGE);
- if (err < 0)
- goto error;
- /* With the page set, use the generic suspend */
- err = genphy_suspend(phydev);
- if (err < 0)
- goto error;
- /* Then, the copper link */
- err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- if (err < 0)
- goto error;
- }
- /* With the page set, use the generic suspend */
- return genphy_suspend(phydev);
- error:
- marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- return err;
- }
- /* marvell_resume
- *
- * Some Marvell's phys have two modes: fiber and copper.
- * Both need to be resumed
- */
- static int marvell_resume(struct phy_device *phydev)
- {
- int err;
- /* Resume the fiber mode first */
- if (!linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT,
- phydev->supported)) {
- err = marvell_set_page(phydev, MII_MARVELL_FIBER_PAGE);
- if (err < 0)
- goto error;
- /* With the page set, use the generic resume */
- err = genphy_resume(phydev);
- if (err < 0)
- goto error;
- /* Then, the copper link */
- err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- if (err < 0)
- goto error;
- }
- /* With the page set, use the generic resume */
- return genphy_resume(phydev);
- error:
- marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
- return err;
- }
- static int marvell_aneg_done(struct phy_device *phydev)
- {
- int retval = phy_read(phydev, MII_M1011_PHY_STATUS);
- return (retval < 0) ? retval : (retval & MII_M1011_PHY_STATUS_RESOLVED);
- }
- static int m88e1121_did_interrupt(struct phy_device *phydev)
- {
- int imask;
- imask = phy_read(phydev, MII_M1011_IEVENT);
- if (imask & MII_M1011_IMASK_INIT)
- return 1;
- return 0;
- }
- static void m88e1318_get_wol(struct phy_device *phydev,
- struct ethtool_wolinfo *wol)
- {
- int oldpage, ret = 0;
- wol->supported = WAKE_MAGIC;
- wol->wolopts = 0;
- oldpage = phy_select_page(phydev, MII_MARVELL_WOL_PAGE);
- if (oldpage < 0)
- goto error;
- ret = __phy_read(phydev, MII_88E1318S_PHY_WOL_CTRL);
- if (ret & MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE)
- wol->wolopts |= WAKE_MAGIC;
- error:
- phy_restore_page(phydev, oldpage, ret);
- }
- static int m88e1318_set_wol(struct phy_device *phydev,
- struct ethtool_wolinfo *wol)
- {
- int err = 0, oldpage;
- oldpage = phy_save_page(phydev);
- if (oldpage < 0)
- goto error;
- if (wol->wolopts & WAKE_MAGIC) {
- /* Explicitly switch to page 0x00, just to be sure */
- err = marvell_write_page(phydev, MII_MARVELL_COPPER_PAGE);
- if (err < 0)
- goto error;
- /* If WOL event happened once, the LED[2] interrupt pin
- * will not be cleared unless we reading the interrupt status
- * register. If interrupts are in use, the normal interrupt
- * handling will clear the WOL event. Clear the WOL event
- * before enabling it if !phy_interrupt_is_valid()
- */
- if (!phy_interrupt_is_valid(phydev))
- __phy_read(phydev, MII_M1011_IEVENT);
- /* Enable the WOL interrupt */
- err = __phy_modify(phydev, MII_88E1318S_PHY_CSIER, 0,
- MII_88E1318S_PHY_CSIER_WOL_EIE);
- if (err < 0)
- goto error;
- err = marvell_write_page(phydev, MII_MARVELL_LED_PAGE);
- if (err < 0)
- goto error;
- /* Setup LED[2] as interrupt pin (active low) */
- err = __phy_modify(phydev, MII_88E1318S_PHY_LED_TCR,
- MII_88E1318S_PHY_LED_TCR_FORCE_INT,
- MII_88E1318S_PHY_LED_TCR_INTn_ENABLE |
- MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW);
- if (err < 0)
- goto error;
- err = marvell_write_page(phydev, MII_MARVELL_WOL_PAGE);
- if (err < 0)
- goto error;
- /* Store the device address for the magic packet */
- err = __phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD2,
- ((phydev->attached_dev->dev_addr[5] << 8) |
- phydev->attached_dev->dev_addr[4]));
- if (err < 0)
- goto error;
- err = __phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD1,
- ((phydev->attached_dev->dev_addr[3] << 8) |
- phydev->attached_dev->dev_addr[2]));
- if (err < 0)
- goto error;
- err = __phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD0,
- ((phydev->attached_dev->dev_addr[1] << 8) |
- phydev->attached_dev->dev_addr[0]));
- if (err < 0)
- goto error;
- /* Clear WOL status and enable magic packet matching */
- err = __phy_modify(phydev, MII_88E1318S_PHY_WOL_CTRL, 0,
- MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS |
- MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE);
- if (err < 0)
- goto error;
- } else {
- err = marvell_write_page(phydev, MII_MARVELL_WOL_PAGE);
- if (err < 0)
- goto error;
- /* Clear WOL status and disable magic packet matching */
- err = __phy_modify(phydev, MII_88E1318S_PHY_WOL_CTRL,
- MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE,
- MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS);
- if (err < 0)
- goto error;
- }
- error:
- return phy_restore_page(phydev, oldpage, err);
- }
- static int marvell_get_sset_count(struct phy_device *phydev)
- {
- if (linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT,
- phydev->supported))
- return ARRAY_SIZE(marvell_hw_stats);
- else
- return ARRAY_SIZE(marvell_hw_stats) - NB_FIBER_STATS;
- }
- static void marvell_get_strings(struct phy_device *phydev, u8 *data)
- {
- int count = marvell_get_sset_count(phydev);
- int i;
- for (i = 0; i < count; i++) {
- strlcpy(data + i * ETH_GSTRING_LEN,
- marvell_hw_stats[i].string, ETH_GSTRING_LEN);
- }
- }
- static u64 marvell_get_stat(struct phy_device *phydev, int i)
- {
- struct marvell_hw_stat stat = marvell_hw_stats[i];
- struct marvell_priv *priv = phydev->priv;
- int val;
- u64 ret;
- val = phy_read_paged(phydev, stat.page, stat.reg);
- if (val < 0) {
- ret = U64_MAX;
- } else {
- val = val & ((1 << stat.bits) - 1);
- priv->stats[i] += val;
- ret = priv->stats[i];
- }
- return ret;
- }
- static void marvell_get_stats(struct phy_device *phydev,
- struct ethtool_stats *stats, u64 *data)
- {
- int count = marvell_get_sset_count(phydev);
- int i;
- for (i = 0; i < count; i++)
- data[i] = marvell_get_stat(phydev, i);
- }
- #ifdef CONFIG_HWMON
- static int m88e1121_get_temp(struct phy_device *phydev, long *temp)
- {
- int oldpage;
- int ret = 0;
- int val;
- *temp = 0;
- oldpage = phy_select_page(phydev, MII_MARVELL_MISC_TEST_PAGE);
- if (oldpage < 0)
- goto error;
- /* Enable temperature sensor */
- ret = __phy_read(phydev, MII_88E1121_MISC_TEST);
- if (ret < 0)
- goto error;
- ret = __phy_write(phydev, MII_88E1121_MISC_TEST,
- ret | MII_88E1121_MISC_TEST_TEMP_SENSOR_EN);
- if (ret < 0)
- goto error;
- /* Wait for temperature to stabilize */
- usleep_range(10000, 12000);
- val = __phy_read(phydev, MII_88E1121_MISC_TEST);
- if (val < 0) {
- ret = val;
- goto error;
- }
- /* Disable temperature sensor */
- ret = __phy_write(phydev, MII_88E1121_MISC_TEST,
- ret & ~MII_88E1121_MISC_TEST_TEMP_SENSOR_EN);
- if (ret < 0)
- goto error;
- *temp = ((val & MII_88E1121_MISC_TEST_TEMP_MASK) - 5) * 5000;
- error:
- return phy_restore_page(phydev, oldpage, ret);
- }
- static int m88e1121_hwmon_read(struct device *dev,
- enum hwmon_sensor_types type,
- u32 attr, int channel, long *temp)
- {
- struct phy_device *phydev = dev_get_drvdata(dev);
- int err;
- switch (attr) {
- case hwmon_temp_input:
- err = m88e1121_get_temp(phydev, temp);
- break;
- default:
- return -EOPNOTSUPP;
- }
- return err;
- }
- static umode_t m88e1121_hwmon_is_visible(const void *data,
- enum hwmon_sensor_types type,
- u32 attr, int channel)
- {
- if (type != hwmon_temp)
- return 0;
- switch (attr) {
- case hwmon_temp_input:
- return 0444;
- default:
- return 0;
- }
- }
- static u32 m88e1121_hwmon_chip_config[] = {
- HWMON_C_REGISTER_TZ,
- 0
- };
- static const struct hwmon_channel_info m88e1121_hwmon_chip = {
- .type = hwmon_chip,
- .config = m88e1121_hwmon_chip_config,
- };
- static u32 m88e1121_hwmon_temp_config[] = {
- HWMON_T_INPUT,
- 0
- };
- static const struct hwmon_channel_info m88e1121_hwmon_temp = {
- .type = hwmon_temp,
- .config = m88e1121_hwmon_temp_config,
- };
- static const struct hwmon_channel_info *m88e1121_hwmon_info[] = {
- &m88e1121_hwmon_chip,
- &m88e1121_hwmon_temp,
- NULL
- };
- static const struct hwmon_ops m88e1121_hwmon_hwmon_ops = {
- .is_visible = m88e1121_hwmon_is_visible,
- .read = m88e1121_hwmon_read,
- };
- static const struct hwmon_chip_info m88e1121_hwmon_chip_info = {
- .ops = &m88e1121_hwmon_hwmon_ops,
- .info = m88e1121_hwmon_info,
- };
- static int m88e1510_get_temp(struct phy_device *phydev, long *temp)
- {
- int ret;
- *temp = 0;
- ret = phy_read_paged(phydev, MII_MARVELL_MISC_TEST_PAGE,
- MII_88E1510_TEMP_SENSOR);
- if (ret < 0)
- return ret;
- *temp = ((ret & MII_88E1510_TEMP_SENSOR_MASK) - 25) * 1000;
- return 0;
- }
- static int m88e1510_get_temp_critical(struct phy_device *phydev, long *temp)
- {
- int ret;
- *temp = 0;
- ret = phy_read_paged(phydev, MII_MARVELL_MISC_TEST_PAGE,
- MII_88E1121_MISC_TEST);
- if (ret < 0)
- return ret;
- *temp = (((ret & MII_88E1510_MISC_TEST_TEMP_THRESHOLD_MASK) >>
- MII_88E1510_MISC_TEST_TEMP_THRESHOLD_SHIFT) * 5) - 25;
- /* convert to mC */
- *temp *= 1000;
- return 0;
- }
- static int m88e1510_set_temp_critical(struct phy_device *phydev, long temp)
- {
- temp = temp / 1000;
- temp = clamp_val(DIV_ROUND_CLOSEST(temp, 5) + 5, 0, 0x1f);
- return phy_modify_paged(phydev, MII_MARVELL_MISC_TEST_PAGE,
- MII_88E1121_MISC_TEST,
- MII_88E1510_MISC_TEST_TEMP_THRESHOLD_MASK,
- temp << MII_88E1510_MISC_TEST_TEMP_THRESHOLD_SHIFT);
- }
- static int m88e1510_get_temp_alarm(struct phy_device *phydev, long *alarm)
- {
- int ret;
- *alarm = false;
- ret = phy_read_paged(phydev, MII_MARVELL_MISC_TEST_PAGE,
- MII_88E1121_MISC_TEST);
- if (ret < 0)
- return ret;
- *alarm = !!(ret & MII_88E1510_MISC_TEST_TEMP_IRQ);
- return 0;
- }
- static int m88e1510_hwmon_read(struct device *dev,
- enum hwmon_sensor_types type,
- u32 attr, int channel, long *temp)
- {
- struct phy_device *phydev = dev_get_drvdata(dev);
- int err;
- switch (attr) {
- case hwmon_temp_input:
- err = m88e1510_get_temp(phydev, temp);
- break;
- case hwmon_temp_crit:
- err = m88e1510_get_temp_critical(phydev, temp);
- break;
- case hwmon_temp_max_alarm:
- err = m88e1510_get_temp_alarm(phydev, temp);
- break;
- default:
- return -EOPNOTSUPP;
- }
- return err;
- }
- static int m88e1510_hwmon_write(struct device *dev,
- enum hwmon_sensor_types type,
- u32 attr, int channel, long temp)
- {
- struct phy_device *phydev = dev_get_drvdata(dev);
- int err;
- switch (attr) {
- case hwmon_temp_crit:
- err = m88e1510_set_temp_critical(phydev, temp);
- break;
- default:
- return -EOPNOTSUPP;
- }
- return err;
- }
- static umode_t m88e1510_hwmon_is_visible(const void *data,
- enum hwmon_sensor_types type,
- u32 attr, int channel)
- {
- if (type != hwmon_temp)
- return 0;
- switch (attr) {
- case hwmon_temp_input:
- case hwmon_temp_max_alarm:
- return 0444;
- case hwmon_temp_crit:
- return 0644;
- default:
- return 0;
- }
- }
- static u32 m88e1510_hwmon_temp_config[] = {
- HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_MAX_ALARM,
- 0
- };
- static const struct hwmon_channel_info m88e1510_hwmon_temp = {
- .type = hwmon_temp,
- .config = m88e1510_hwmon_temp_config,
- };
- static const struct hwmon_channel_info *m88e1510_hwmon_info[] = {
- &m88e1121_hwmon_chip,
- &m88e1510_hwmon_temp,
- NULL
- };
- static const struct hwmon_ops m88e1510_hwmon_hwmon_ops = {
- .is_visible = m88e1510_hwmon_is_visible,
- .read = m88e1510_hwmon_read,
- .write = m88e1510_hwmon_write,
- };
- static const struct hwmon_chip_info m88e1510_hwmon_chip_info = {
- .ops = &m88e1510_hwmon_hwmon_ops,
- .info = m88e1510_hwmon_info,
- };
- static int m88e6390_get_temp(struct phy_device *phydev, long *temp)
- {
- int sum = 0;
- int oldpage;
- int ret = 0;
- int i;
- *temp = 0;
- oldpage = phy_select_page(phydev, MII_MARVELL_MISC_TEST_PAGE);
- if (oldpage < 0)
- goto error;
- /* Enable temperature sensor */
- ret = __phy_read(phydev, MII_88E6390_MISC_TEST);
- if (ret < 0)
- goto error;
- ret = ret & ~MII_88E6390_MISC_TEST_SAMPLE_MASK;
- ret |= MII_88E6390_MISC_TEST_SAMPLE_ENABLE |
- MII_88E6390_MISC_TEST_SAMPLE_1S;
- ret = __phy_write(phydev, MII_88E6390_MISC_TEST, ret);
- if (ret < 0)
- goto error;
- /* Wait for temperature to stabilize */
- usleep_range(10000, 12000);
- /* Reading the temperature sense has an errata. You need to read
- * a number of times and take an average.
- */
- for (i = 0; i < MII_88E6390_TEMP_SENSOR_SAMPLES; i++) {
- ret = __phy_read(phydev, MII_88E6390_TEMP_SENSOR);
- if (ret < 0)
- goto error;
- sum += ret & MII_88E6390_TEMP_SENSOR_MASK;
- }
- sum /= MII_88E6390_TEMP_SENSOR_SAMPLES;
- *temp = (sum - 75) * 1000;
- /* Disable temperature sensor */
- ret = __phy_read(phydev, MII_88E6390_MISC_TEST);
- if (ret < 0)
- goto error;
- ret = ret & ~MII_88E6390_MISC_TEST_SAMPLE_MASK;
- ret |= MII_88E6390_MISC_TEST_SAMPLE_DISABLE;
- ret = __phy_write(phydev, MII_88E6390_MISC_TEST, ret);
- error:
- phy_restore_page(phydev, oldpage, ret);
- return ret;
- }
- static int m88e6390_hwmon_read(struct device *dev,
- enum hwmon_sensor_types type,
- u32 attr, int channel, long *temp)
- {
- struct phy_device *phydev = dev_get_drvdata(dev);
- int err;
- switch (attr) {
- case hwmon_temp_input:
- err = m88e6390_get_temp(phydev, temp);
- break;
- default:
- return -EOPNOTSUPP;
- }
- return err;
- }
- static umode_t m88e6390_hwmon_is_visible(const void *data,
- enum hwmon_sensor_types type,
- u32 attr, int channel)
- {
- if (type != hwmon_temp)
- return 0;
- switch (attr) {
- case hwmon_temp_input:
- return 0444;
- default:
- return 0;
- }
- }
- static u32 m88e6390_hwmon_temp_config[] = {
- HWMON_T_INPUT,
- 0
- };
- static const struct hwmon_channel_info m88e6390_hwmon_temp = {
- .type = hwmon_temp,
- .config = m88e6390_hwmon_temp_config,
- };
- static const struct hwmon_channel_info *m88e6390_hwmon_info[] = {
- &m88e1121_hwmon_chip,
- &m88e6390_hwmon_temp,
- NULL
- };
- static const struct hwmon_ops m88e6390_hwmon_hwmon_ops = {
- .is_visible = m88e6390_hwmon_is_visible,
- .read = m88e6390_hwmon_read,
- };
- static const struct hwmon_chip_info m88e6390_hwmon_chip_info = {
- .ops = &m88e6390_hwmon_hwmon_ops,
- .info = m88e6390_hwmon_info,
- };
- static int marvell_hwmon_name(struct phy_device *phydev)
- {
- struct marvell_priv *priv = phydev->priv;
- struct device *dev = &phydev->mdio.dev;
- const char *devname = dev_name(dev);
- size_t len = strlen(devname);
- int i, j;
- priv->hwmon_name = devm_kzalloc(dev, len, GFP_KERNEL);
- if (!priv->hwmon_name)
- return -ENOMEM;
- for (i = j = 0; i < len && devname[i]; i++) {
- if (isalnum(devname[i]))
- priv->hwmon_name[j++] = devname[i];
- }
- return 0;
- }
- static int marvell_hwmon_probe(struct phy_device *phydev,
- const struct hwmon_chip_info *chip)
- {
- struct marvell_priv *priv = phydev->priv;
- struct device *dev = &phydev->mdio.dev;
- int err;
- err = marvell_hwmon_name(phydev);
- if (err)
- return err;
- priv->hwmon_dev = devm_hwmon_device_register_with_info(
- dev, priv->hwmon_name, phydev, chip, NULL);
- return PTR_ERR_OR_ZERO(priv->hwmon_dev);
- }
- static int m88e1121_hwmon_probe(struct phy_device *phydev)
- {
- return marvell_hwmon_probe(phydev, &m88e1121_hwmon_chip_info);
- }
- static int m88e1510_hwmon_probe(struct phy_device *phydev)
- {
- return marvell_hwmon_probe(phydev, &m88e1510_hwmon_chip_info);
- }
- static int m88e6390_hwmon_probe(struct phy_device *phydev)
- {
- return marvell_hwmon_probe(phydev, &m88e6390_hwmon_chip_info);
- }
- #else
- static int m88e1121_hwmon_probe(struct phy_device *phydev)
- {
- return 0;
- }
- static int m88e1510_hwmon_probe(struct phy_device *phydev)
- {
- return 0;
- }
- static int m88e6390_hwmon_probe(struct phy_device *phydev)
- {
- return 0;
- }
- #endif
- static int marvell_probe(struct phy_device *phydev)
- {
- struct marvell_priv *priv;
- priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
- phydev->priv = priv;
- return 0;
- }
- static int m88e1121_probe(struct phy_device *phydev)
- {
- int err;
- err = marvell_probe(phydev);
- if (err)
- return err;
- return m88e1121_hwmon_probe(phydev);
- }
- static int m88e1510_probe(struct phy_device *phydev)
- {
- int err;
- err =…