net: phy: dp83848: Add TI DP83848 Ethernet PHY (34e45ad9) · Commits · 戴 / test

drivers/net/phy/Kconfig

+5 −0

Original line number	Diff line number	Diff line
		@@ -122,6 +122,11 @@ config MICREL_PHY
		---help---
		Supports the KSZ9021, VSC8201, KS8001 PHYs.

		config DP83848_PHY
		tristate "Driver for Texas Instruments DP83848 PHY"
		---help---
		Supports the DP83848 PHY.

		config DP83867_PHY
		tristate "Drivers for Texas Instruments DP83867 Gigabit PHY"
		---help---

drivers/net/phy/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@ obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o
		obj-$(CONFIG_MDIO_GPIO) += mdio-gpio.o
		obj-$(CONFIG_NATIONAL_PHY) += national.o
		obj-$(CONFIG_DP83640_PHY) += dp83640.o
		obj-$(CONFIG_DP83848_PHY) += dp83848.o
		obj-$(CONFIG_DP83867_PHY) += dp83867.o
		obj-$(CONFIG_STE10XP) += ste10Xp.o
		obj-$(CONFIG_MICREL_PHY) += micrel.o

drivers/net/phy/dp83848.c

0 → 100644

+99 −0

Original line number	Diff line number	Diff line
		/*
		* Driver for the Texas Instruments DP83848 PHY
		*
		* Copyright (C) 2015 Texas Instruments Inc.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation; either version 2 of the License.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*/

		#include <linux/module.h>
		#include <linux/phy.h>

		#define DP83848_PHY_ID 0x20005c90

		/* Registers */
		#define DP83848_MICR 0x11
		#define DP83848_MISR 0x12

		/* MICR Register Fields */
		#define DP83848_MICR_INT_OE BIT(0) /* Interrupt Output Enable */
		#define DP83848_MICR_INTEN BIT(1) /* Interrupt Enable */

		/* MISR Register Fields */
		#define DP83848_MISR_RHF_INT_EN BIT(0) /* Receive Error Counter */
		#define DP83848_MISR_FHF_INT_EN BIT(1) /* False Carrier Counter */
		#define DP83848_MISR_ANC_INT_EN BIT(2) /* Auto-negotiation complete */
		#define DP83848_MISR_DUP_INT_EN BIT(3) /* Duplex Status */
		#define DP83848_MISR_SPD_INT_EN BIT(4) /* Speed status */
		#define DP83848_MISR_LINK_INT_EN BIT(5) /* Link status */
		#define DP83848_MISR_ED_INT_EN BIT(6) /* Energy detect */
		#define DP83848_MISR_LQM_INT_EN BIT(7) /* Link Quality Monitor */

		static int dp83848_ack_interrupt(struct phy_device *phydev)
		{
		int err = phy_read(phydev, DP83848_MISR);

		return err < 0 ? err : 0;
		}

		static int dp83848_config_intr(struct phy_device *phydev)
		{
		int err;

		if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
		err = phy_write(phydev, DP83848_MICR,
		DP83848_MICR_INT_OE \|
		DP83848_MICR_INTEN);
		if (err < 0)
		return err;

		return phy_write(phydev, DP83848_MISR,
		DP83848_MISR_ANC_INT_EN \|
		DP83848_MISR_DUP_INT_EN \|
		DP83848_MISR_SPD_INT_EN \|
		DP83848_MISR_LINK_INT_EN);
		}

		return phy_write(phydev, DP83848_MICR, 0x0);
		}

		static struct mdio_device_id __maybe_unused dp83848_tbl[] = {
		{ DP83848_PHY_ID, 0xfffffff0 },
		{ }
		};
		MODULE_DEVICE_TABLE(mdio, dp83848_tbl);

		static struct phy_driver dp83848_driver[] = {
		{
		.phy_id = DP83848_PHY_ID,
		.phy_id_mask = 0xfffffff0,
		.name = "TI DP83848",
		.features = PHY_BASIC_FEATURES,
		.flags = PHY_HAS_INTERRUPT,

		.soft_reset = genphy_soft_reset,
		.config_init = genphy_config_init,
		.suspend = genphy_suspend,
		.resume = genphy_resume,
		.config_aneg = genphy_config_aneg,
		.read_status = genphy_read_status,

		/* IRQ related */
		.ack_interrupt = dp83848_ack_interrupt,
		.config_intr = dp83848_config_intr,

		.driver = { .owner = THIS_MODULE, },
		},
		};
		module_phy_driver(dp83848_driver);

		MODULE_DESCRIPTION("Texas Instruments DP83848 PHY driver");
		MODULE_AUTHOR("Andrew F. Davis <afd@ti.com");
		MODULE_LICENSE("GPL");

Admin message