146 lines
2.9 KiB
C
146 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2019 Sartura Ltd.
|
|
*
|
|
* Author: Robert Marko <robert.marko@sartura.hr>
|
|
*
|
|
* Based on Linux driver
|
|
*/
|
|
|
|
#include <clk.h>
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <generic-phy.h>
|
|
#include <log.h>
|
|
#include <reset.h>
|
|
#include <asm/io.h>
|
|
#include <linux/delay.h>
|
|
|
|
struct ipq4019_usb_phy {
|
|
phys_addr_t base;
|
|
struct reset_ctl por_rst;
|
|
struct reset_ctl srif_rst;
|
|
};
|
|
|
|
static int ipq4019_ss_phy_power_off(struct phy *_phy)
|
|
{
|
|
struct ipq4019_usb_phy *phy = dev_get_priv(_phy->dev);
|
|
|
|
reset_assert(&phy->por_rst);
|
|
mdelay(10);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ipq4019_ss_phy_power_on(struct phy *_phy)
|
|
{
|
|
struct ipq4019_usb_phy *phy = dev_get_priv(_phy->dev);
|
|
|
|
ipq4019_ss_phy_power_off(_phy);
|
|
|
|
reset_deassert(&phy->por_rst);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct phy_ops ipq4019_usb_ss_phy_ops = {
|
|
.power_on = ipq4019_ss_phy_power_on,
|
|
.power_off = ipq4019_ss_phy_power_off,
|
|
};
|
|
|
|
static int ipq4019_usb_ss_phy_probe(struct udevice *dev)
|
|
{
|
|
struct ipq4019_usb_phy *phy = dev_get_priv(dev);
|
|
int ret;
|
|
|
|
phy->base = dev_read_addr(dev);
|
|
if (phy->base == FDT_ADDR_T_NONE)
|
|
return -EINVAL;
|
|
|
|
ret = reset_get_by_name(dev, "por_rst", &phy->por_rst);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct udevice_id ipq4019_usb_ss_phy_ids[] = {
|
|
{ .compatible = "qcom,usb-ss-ipq4019-phy" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(ipq4019_usb_ss_phy) = {
|
|
.name = "ipq4019-usb-ss-phy",
|
|
.id = UCLASS_PHY,
|
|
.of_match = ipq4019_usb_ss_phy_ids,
|
|
.ops = &ipq4019_usb_ss_phy_ops,
|
|
.probe = ipq4019_usb_ss_phy_probe,
|
|
.priv_auto = sizeof(struct ipq4019_usb_phy),
|
|
};
|
|
|
|
static int ipq4019_hs_phy_power_off(struct phy *_phy)
|
|
{
|
|
struct ipq4019_usb_phy *phy = dev_get_priv(_phy->dev);
|
|
|
|
reset_assert(&phy->por_rst);
|
|
mdelay(10);
|
|
|
|
reset_assert(&phy->srif_rst);
|
|
mdelay(10);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ipq4019_hs_phy_power_on(struct phy *_phy)
|
|
{
|
|
struct ipq4019_usb_phy *phy = dev_get_priv(_phy->dev);
|
|
|
|
ipq4019_hs_phy_power_off(_phy);
|
|
|
|
reset_deassert(&phy->srif_rst);
|
|
mdelay(10);
|
|
|
|
reset_deassert(&phy->por_rst);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct phy_ops ipq4019_usb_hs_phy_ops = {
|
|
.power_on = ipq4019_hs_phy_power_on,
|
|
.power_off = ipq4019_hs_phy_power_off,
|
|
};
|
|
|
|
static int ipq4019_usb_hs_phy_probe(struct udevice *dev)
|
|
{
|
|
struct ipq4019_usb_phy *phy = dev_get_priv(dev);
|
|
int ret;
|
|
|
|
phy->base = dev_read_addr(dev);
|
|
if (phy->base == FDT_ADDR_T_NONE)
|
|
return -EINVAL;
|
|
|
|
ret = reset_get_by_name(dev, "por_rst", &phy->por_rst);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = reset_get_by_name(dev, "srif_rst", &phy->srif_rst);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct udevice_id ipq4019_usb_hs_phy_ids[] = {
|
|
{ .compatible = "qcom,usb-hs-ipq4019-phy" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(ipq4019_usb_hs_phy) = {
|
|
.name = "ipq4019-usb-hs-phy",
|
|
.id = UCLASS_PHY,
|
|
.of_match = ipq4019_usb_hs_phy_ids,
|
|
.ops = &ipq4019_usb_hs_phy_ops,
|
|
.probe = ipq4019_usb_hs_phy_probe,
|
|
.priv_auto = sizeof(struct ipq4019_usb_phy),
|
|
};
|