linux/drivers/net/mdio/mdio-aspeed.c

// SPDX-License-Identifier: GPL-2.0-or-later
/* Copyright (C) 2019 IBM Corp. */

#include <linux/bitfield.h>
#include <linux/delay.h>
#include <linux/reset.h>
#include <linux/iopoll.h>
#include <linux/mdio.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_mdio.h>
#include <linux/phy.h>
#include <linux/platform_device.h>

#define DRV_NAME …

#define ASPEED_MDIO_CTRL …
#define ASPEED_MDIO_CTRL_FIRE …
#define ASPEED_MDIO_CTRL_ST …
#define ASPEED_MDIO_CTRL_ST_C45 …
#define ASPEED_MDIO_CTRL_ST_C22 …
#define ASPEED_MDIO_CTRL_OP …
#define MDIO_C22_OP_WRITE …
#define MDIO_C22_OP_READ …
#define MDIO_C45_OP_ADDR …
#define MDIO_C45_OP_WRITE …
#define MDIO_C45_OP_PREAD …
#define MDIO_C45_OP_READ …
#define ASPEED_MDIO_CTRL_PHYAD …
#define ASPEED_MDIO_CTRL_REGAD …
#define ASPEED_MDIO_CTRL_MIIWDATA …

#define ASPEED_MDIO_DATA …
#define ASPEED_MDIO_DATA_MDC_THRES …
#define ASPEED_MDIO_DATA_MDIO_EDGE …
#define ASPEED_MDIO_DATA_MDIO_LATCH …
#define ASPEED_MDIO_DATA_IDLE …
#define ASPEED_MDIO_DATA_MIIRDATA …

#define ASPEED_MDIO_INTERVAL_US …
#define ASPEED_MDIO_TIMEOUT_US …

struct aspeed_mdio { … };

static int aspeed_mdio_op(struct mii_bus *bus, u8 st, u8 op, u8 phyad, u8 regad,
			  u16 data)
{ … }

static int aspeed_mdio_get_data(struct mii_bus *bus)
{ … }

static int aspeed_mdio_read_c22(struct mii_bus *bus, int addr, int regnum)
{ … }

static int aspeed_mdio_write_c22(struct mii_bus *bus, int addr, int regnum,
				 u16 val)
{ … }

static int aspeed_mdio_read_c45(struct mii_bus *bus, int addr, int devad,
				int regnum)
{ … }

static int aspeed_mdio_write_c45(struct mii_bus *bus, int addr, int devad,
				 int regnum, u16 val)
{ … }

static int aspeed_mdio_probe(struct platform_device *pdev)
{ … }

static void aspeed_mdio_remove(struct platform_device *pdev)
{ … }

static const struct of_device_id aspeed_mdio_of_match[] = …;
MODULE_DEVICE_TABLE(of, aspeed_mdio_of_match);

static struct platform_driver aspeed_mdio_driver = …;

module_platform_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;
MODULE_DESCRIPTION(…) …;