diff options
Diffstat (limited to 'include/linux/usb/tegra_usb_phy.h')
-rw-r--r-- | include/linux/usb/tegra_usb_phy.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h new file mode 100644 index 000000000..46e73584b --- /dev/null +++ b/include/linux/usb/tegra_usb_phy.h @@ -0,0 +1,91 @@ +// 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 */ |