tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
MIPS: BCM63XX: Add integrated ethernet PHY support for phylib.
Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
drivers/net/phy/Kconfig | 6 ++
drivers/net/phy/Makefile | 1
drivers/net/phy/bcm63xx.c | 132 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 139 insertions(+)
create mode 100644 drivers/net/phy/bcm63xx.c
Signed-off-by: David S. Miller <davem@davemloft.net>
authored by
Maxime Bizon
and committed by
David S. Miller
09bb9aa0
460deefa
+139
+6
drivers/net/phy/Kconfig
+6
drivers/net/phy/Kconfig
···
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Currently supports the BCM5411, BCM5421, BCM5461, BCM5464, BCM5481
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and BCM5482 PHYs.
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config BCM63XX_PHY
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tristate "Drivers for Broadcom 63xx SOCs internal PHY"
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depends on BCM63XX
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---help---
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Currently supports the 6348 and 6358 PHYs.
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+
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config ICPLUS_PHY
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tristate "Drivers for ICPlus PHYs"
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---help---
+1
drivers/net/phy/Makefile
+1
drivers/net/phy/Makefile
···
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obj-$(CONFIG_SMSC_PHY) += smsc.o
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obj-$(CONFIG_VITESSE_PHY) += vitesse.o
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obj-$(CONFIG_BROADCOM_PHY) += broadcom.o
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obj-$(CONFIG_BCM63XX_PHY) += bcm63xx.o
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obj-$(CONFIG_ICPLUS_PHY) += icplus.o
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obj-$(CONFIG_REALTEK_PHY) += realtek.o
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obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o
+132
drivers/net/phy/bcm63xx.c
+132
drivers/net/phy/bcm63xx.c
···
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/*
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* Driver for Broadcom 63xx SOCs integrated PHYs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/module.h>
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#include <linux/phy.h>
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+
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#define MII_BCM63XX_IR 0x1a /* interrupt register */
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#define MII_BCM63XX_IR_EN 0x4000 /* global interrupt enable */
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#define MII_BCM63XX_IR_DUPLEX 0x0800 /* duplex changed */
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#define MII_BCM63XX_IR_SPEED 0x0400 /* speed changed */
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#define MII_BCM63XX_IR_LINK 0x0200 /* link changed */
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#define MII_BCM63XX_IR_GMASK 0x0100 /* global interrupt mask */
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+
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MODULE_DESCRIPTION("Broadcom 63xx internal PHY driver");
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MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>");
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MODULE_LICENSE("GPL");
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+
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static int bcm63xx_config_init(struct phy_device *phydev)
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{
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int reg, err;
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+
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reg = phy_read(phydev, MII_BCM63XX_IR);
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if (reg < 0)
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return reg;
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+
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/* Mask interrupts globally. */
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reg |= MII_BCM63XX_IR_GMASK;
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err = phy_write(phydev, MII_BCM63XX_IR, reg);
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if (err < 0)
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return err;
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+
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/* Unmask events we are interested in */
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reg = ~(MII_BCM63XX_IR_DUPLEX |
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MII_BCM63XX_IR_SPEED |
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MII_BCM63XX_IR_LINK) |
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MII_BCM63XX_IR_EN;
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err = phy_write(phydev, MII_BCM63XX_IR, reg);
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if (err < 0)
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return err;
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return 0;
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}
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+
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static int bcm63xx_ack_interrupt(struct phy_device *phydev)
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{
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int reg;
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/* Clear pending interrupts. */
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reg = phy_read(phydev, MII_BCM63XX_IR);
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if (reg < 0)
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return reg;
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+
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return 0;
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}
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static int bcm63xx_config_intr(struct phy_device *phydev)
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{
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int reg, err;
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+
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reg = phy_read(phydev, MII_BCM63XX_IR);
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if (reg < 0)
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return reg;
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if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
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reg &= ~MII_BCM63XX_IR_GMASK;
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else
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reg |= MII_BCM63XX_IR_GMASK;
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err = phy_write(phydev, MII_BCM63XX_IR, reg);
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return err;
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}
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+
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static struct phy_driver bcm63xx_1_driver = {
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.phy_id = 0x00406000,
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.phy_id_mask = 0xfffffc00,
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.name = "Broadcom BCM63XX (1)",
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/* ASYM_PAUSE bit is marked RO in datasheet, so don't cheat */
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.features = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
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.flags = PHY_HAS_INTERRUPT,
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.config_init = bcm63xx_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 = bcm63xx_ack_interrupt,
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.config_intr = bcm63xx_config_intr,
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.driver = { .owner = THIS_MODULE },
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};
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/* same phy as above, with just a different OUI */
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static struct phy_driver bcm63xx_2_driver = {
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.phy_id = 0x002bdc00,
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.phy_id_mask = 0xfffffc00,
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.name = "Broadcom BCM63XX (2)",
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.features = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
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.flags = PHY_HAS_INTERRUPT,
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.config_init = bcm63xx_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 = bcm63xx_ack_interrupt,
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.config_intr = bcm63xx_config_intr,
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.driver = { .owner = THIS_MODULE },
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};
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static int __init bcm63xx_phy_init(void)
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{
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int ret;
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ret = phy_driver_register(&bcm63xx_1_driver);
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if (ret)
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goto out_63xx_1;
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ret = phy_driver_register(&bcm63xx_2_driver);
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if (ret)
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goto out_63xx_2;
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return ret;
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out_63xx_2:
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phy_driver_unregister(&bcm63xx_1_driver);
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out_63xx_1:
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return ret;
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}
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static void __exit bcm63xx_phy_exit(void)
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{
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phy_driver_unregister(&bcm63xx_1_driver);
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phy_driver_unregister(&bcm63xx_2_driver);
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}
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module_init(bcm63xx_phy_init);
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module_exit(bcm63xx_phy_exit);