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- // SPDX-License-Identifier: GPL-2.0
- /*
- * Copyright (C) 2010 Google, Inc.
- */
- #ifndef __TEGRA_USB_PHY_H
- #define __TEGRA_USB_PHY_H
- #include <linux/clk.h>
- #include <linux/gpio.h>
- #include <linux/regmap.h>
- #include <linux/reset.h>
- #include <linux/usb/otg.h>
- /*
- * utmi_pll_config_in_car_module: true if the UTMI PLL configuration registers
- * should be set up by clk-tegra, false if by the PHY code
- * has_hostpc: true if the USB controller has the HOSTPC extension, which
- * changes the location of the PHCD and PTS fields
- * requires_usbmode_setup: true if the USBMODE register needs to be set to
- * enter host mode
- * requires_extra_tuning_parameters: true if xcvr_hsslew, hssquelch_level
- * and hsdiscon_level should be set for adequate signal quality
- * requires_pmc_ao_power_up: true if USB AO is powered down by default
- */
- struct tegra_phy_soc_config {
- bool utmi_pll_config_in_car_module;
- bool has_hostpc;
- bool requires_usbmode_setup;
- bool requires_extra_tuning_parameters;
- bool requires_pmc_ao_power_up;
- };
- struct tegra_utmip_config {
- u8 hssync_start_delay;
- u8 elastic_limit;
- u8 idle_wait_delay;
- u8 term_range_adj;
- bool xcvr_setup_use_fuses;
- u8 xcvr_setup;
- u8 xcvr_lsfslew;
- u8 xcvr_lsrslew;
- u8 xcvr_hsslew;
- u8 hssquelch_level;
- u8 hsdiscon_level;
- };
- enum tegra_usb_phy_port_speed {
- TEGRA_USB_PHY_PORT_SPEED_FULL = 0,
- TEGRA_USB_PHY_PORT_SPEED_LOW,
- TEGRA_USB_PHY_PORT_SPEED_HIGH,
- };
- struct tegra_xtal_freq;
- struct tegra_usb_phy {
- int irq;
- int instance;
- const struct tegra_xtal_freq *freq;
- void __iomem *regs;
- void __iomem *pad_regs;
- struct clk *clk;
- struct clk *pll_u;
- struct clk *pad_clk;
- struct regulator *vbus;
- struct regmap *pmc_regmap;
- enum usb_dr_mode mode;
- void *config;
- const struct tegra_phy_soc_config *soc_config;
- struct usb_phy *ulpi;
- struct usb_phy u_phy;
- bool is_legacy_phy;
- bool is_ulpi_phy;
- struct gpio_desc *reset_gpio;
- struct reset_control *pad_rst;
- bool wakeup_enabled;
- bool pad_wakeup;
- bool powered_on;
- };
- void tegra_usb_phy_preresume(struct usb_phy *phy);
- void tegra_usb_phy_postresume(struct usb_phy *phy);
- void tegra_ehci_phy_restore_start(struct usb_phy *phy,
- enum tegra_usb_phy_port_speed port_speed);
- void tegra_ehci_phy_restore_end(struct usb_phy *phy);
- #endif /* __TEGRA_USB_PHY_H */
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