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fb44b8d62c
This change hooks link-status-change interrupts to phylib. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: David S. Miller <davem@davemloft.net>
90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/**
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* Driver for Analog Devices Industrial Ethernet PHYs
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*
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* Copyright 2019 Analog Devices Inc.
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/mii.h>
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#include <linux/phy.h>
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#define PHY_ID_ADIN1200 0x0283bc20
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#define PHY_ID_ADIN1300 0x0283bc30
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#define ADIN1300_INT_MASK_REG 0x0018
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#define ADIN1300_INT_MDIO_SYNC_EN BIT(9)
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#define ADIN1300_INT_ANEG_STAT_CHNG_EN BIT(8)
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#define ADIN1300_INT_ANEG_PAGE_RX_EN BIT(6)
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#define ADIN1300_INT_IDLE_ERR_CNT_EN BIT(5)
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#define ADIN1300_INT_MAC_FIFO_OU_EN BIT(4)
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#define ADIN1300_INT_RX_STAT_CHNG_EN BIT(3)
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#define ADIN1300_INT_LINK_STAT_CHNG_EN BIT(2)
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#define ADIN1300_INT_SPEED_CHNG_EN BIT(1)
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#define ADIN1300_INT_HW_IRQ_EN BIT(0)
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#define ADIN1300_INT_MASK_EN \
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(ADIN1300_INT_LINK_STAT_CHNG_EN | ADIN1300_INT_HW_IRQ_EN)
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#define ADIN1300_INT_STATUS_REG 0x0019
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static int adin_config_init(struct phy_device *phydev)
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{
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return genphy_config_init(phydev);
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}
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static int adin_phy_ack_intr(struct phy_device *phydev)
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{
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/* Clear pending interrupts */
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int rc = phy_read(phydev, ADIN1300_INT_STATUS_REG);
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return rc < 0 ? rc : 0;
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}
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static int adin_phy_config_intr(struct phy_device *phydev)
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{
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if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
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return phy_set_bits(phydev, ADIN1300_INT_MASK_REG,
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ADIN1300_INT_MASK_EN);
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return phy_clear_bits(phydev, ADIN1300_INT_MASK_REG,
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ADIN1300_INT_MASK_EN);
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}
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static struct phy_driver adin_driver[] = {
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{
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PHY_ID_MATCH_MODEL(PHY_ID_ADIN1200),
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.name = "ADIN1200",
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.config_init = adin_config_init,
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.config_aneg = genphy_config_aneg,
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.read_status = genphy_read_status,
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.ack_interrupt = adin_phy_ack_intr,
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.config_intr = adin_phy_config_intr,
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.resume = genphy_resume,
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.suspend = genphy_suspend,
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},
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{
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PHY_ID_MATCH_MODEL(PHY_ID_ADIN1300),
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.name = "ADIN1300",
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.config_init = adin_config_init,
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.config_aneg = genphy_config_aneg,
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.read_status = genphy_read_status,
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.ack_interrupt = adin_phy_ack_intr,
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.config_intr = adin_phy_config_intr,
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.resume = genphy_resume,
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.suspend = genphy_suspend,
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},
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};
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module_phy_driver(adin_driver);
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static struct mdio_device_id __maybe_unused adin_tbl[] = {
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{ PHY_ID_MATCH_MODEL(PHY_ID_ADIN1200) },
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{ PHY_ID_MATCH_MODEL(PHY_ID_ADIN1300) },
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{ }
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};
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MODULE_DEVICE_TABLE(mdio, adin_tbl);
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MODULE_DESCRIPTION("Analog Devices Industrial Ethernet PHY driver");
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MODULE_LICENSE("GPL");
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