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