sandbox-phy.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
* Written by Jean-Jacques Hiblot <jjhiblot@ti.com>
*/
#include <common.h>
#include <dm.h>
#include <generic-phy.h>
struct sandbox_phy_priv {
bool initialized;
bool on;
bool broken;
};
static int sandbox_phy_power_on(struct phy *phy)
{
struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
if (!priv->initialized)
return -EIO;
if (priv->broken)
return -EIO;
priv->on = true;
return 0;
}
static int sandbox_phy_power_off(struct phy *phy)
{
struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
if (!priv->initialized)
return -EIO;
if (priv->broken)
return -EIO;
/*
* for validation purpose, let's says that power off
* works only for PHY 0
*/
if (phy->id)
return -EIO;
priv->on = false;
return 0;
}
static int sandbox_phy_init(struct phy *phy)
{
struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
priv->initialized = true;
priv->on = true;
return 0;
}
static int sandbox_phy_exit(struct phy *phy)
{
struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
priv->initialized = false;
priv->on = false;
return 0;
}
static int sandbox_phy_probe(struct udevice *dev)
{
struct sandbox_phy_priv *priv = dev_get_priv(dev);
priv->initialized = false;
priv->on = false;
priv->broken = dev_read_bool(dev, "broken");
return 0;
}
static struct phy_ops sandbox_phy_ops = {
.power_on = sandbox_phy_power_on,
.power_off = sandbox_phy_power_off,
.init = sandbox_phy_init,
.exit = sandbox_phy_exit,
};
static const struct udevice_id sandbox_phy_ids[] = {
{ .compatible = "sandbox,phy" },
{ }
};
U_BOOT_DRIVER(phy_sandbox) = {
.name = "phy_sandbox",
.id = UCLASS_PHY,
.of_match = sandbox_phy_ids,
.ops = &sandbox_phy_ops,
.probe = sandbox_phy_probe,
.priv_auto_alloc_size = sizeof(struct sandbox_phy_priv),
};