Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0+
/*
 * drivers/net/phy/ste10Xp.c
 *
 * Driver for STMicroelectronics STe10Xp PHYs
 *
 * Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
 *
 * Copyright (c) 2008 STMicroelectronics Limited
 */
 
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/phy.h>
 
#define MII_XCIIS   	0x11	/* Configuration Info IRQ & Status Reg */
#define MII_XIE     	0x12	/* Interrupt Enable Register */
#define MII_XIE_DEFAULT_MASK 0x0070 /* ANE complete, Remote Fault, Link Down */
 
#define STE101P_PHY_ID		0x00061c50
#define STE100P_PHY_ID       	0x1c040011
 
static int ste10Xp_config_init(struct phy_device *phydev)
{
<------>int value, err;
 
<------>/* Software Reset PHY */
<------>value = phy_read(phydev, MII_BMCR);
<------>if (value < 0)
<------><------>return value;
 
<------>value |= BMCR_RESET;
<------>err = phy_write(phydev, MII_BMCR, value);
<------>if (err < 0)
<------><------>return err;
 
<------>do {
<------><------>value = phy_read(phydev, MII_BMCR);
<------>} while (value & BMCR_RESET);
 
<------>return 0;
}
 
static int ste10Xp_config_intr(struct phy_device *phydev)
{
<------>int err, value;
 
<------>if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
<------><------>/* Enable all STe101P interrupts (PR12) */
<------><------>err = phy_write(phydev, MII_XIE, MII_XIE_DEFAULT_MASK);
<------><------>/* clear any pending interrupts */
<------><------>if (err == 0) {
<------><------><------>value = phy_read(phydev, MII_XCIIS);
<------><------><------>if (value < 0)
<------><------><------><------>err = value;
<------><------>}
<------>} else
<------><------>err = phy_write(phydev, MII_XIE, 0);
 
<------>return err;
}
 
static int ste10Xp_ack_interrupt(struct phy_device *phydev)
{
<------>int err = phy_read(phydev, MII_XCIIS);
<------>if (err < 0)
<------><------>return err;
 
<------>return 0;
}
 
static struct phy_driver ste10xp_pdriver[] = {
{
<------>.phy_id = STE101P_PHY_ID,
<------>.phy_id_mask = 0xfffffff0,
<------>.name = "STe101p",
<------>/* PHY_BASIC_FEATURES */
<------>.config_init = ste10Xp_config_init,
<------>.ack_interrupt = ste10Xp_ack_interrupt,
<------>.config_intr = ste10Xp_config_intr,
<------>.suspend = genphy_suspend,
<------>.resume = genphy_resume,
}, {
<------>.phy_id = STE100P_PHY_ID,
<------>.phy_id_mask = 0xffffffff,
<------>.name = "STe100p",
<------>/* PHY_BASIC_FEATURES */
<------>.config_init = ste10Xp_config_init,
<------>.ack_interrupt = ste10Xp_ack_interrupt,
<------>.config_intr = ste10Xp_config_intr,
<------>.suspend = genphy_suspend,
<------>.resume = genphy_resume,
} };
 
module_phy_driver(ste10xp_pdriver);
 
static struct mdio_device_id __maybe_unused ste10Xp_tbl[] = {
<------>{ STE101P_PHY_ID, 0xfffffff0 },
<------>{ STE100P_PHY_ID, 0xffffffff },
<------>{ }
};
 
MODULE_DEVICE_TABLE(mdio, ste10Xp_tbl);
 
MODULE_DESCRIPTION("STMicroelectronics STe10Xp PHY driver");
MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
MODULE_LICENSE("GPL");