1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * Copyright (C) 2010 Google, Inc. |
4 | */ |
5 | |
6 | #ifndef __TEGRA_USB_PHY_H |
7 | #define __TEGRA_USB_PHY_H |
8 | |
9 | #include <linux/clk.h> |
10 | #include <linux/gpio.h> |
11 | #include <linux/regmap.h> |
12 | #include <linux/reset.h> |
13 | #include <linux/usb/otg.h> |
14 | |
15 | /* |
16 | * utmi_pll_config_in_car_module: true if the UTMI PLL configuration registers |
17 | * should be set up by clk-tegra, false if by the PHY code |
18 | * has_hostpc: true if the USB controller has the HOSTPC extension, which |
19 | * changes the location of the PHCD and PTS fields |
20 | * requires_usbmode_setup: true if the USBMODE register needs to be set to |
21 | * enter host mode |
22 | * requires_extra_tuning_parameters: true if xcvr_hsslew, hssquelch_level |
23 | * and hsdiscon_level should be set for adequate signal quality |
24 | * requires_pmc_ao_power_up: true if USB AO is powered down by default |
25 | */ |
26 | |
27 | struct tegra_phy_soc_config { |
28 | bool utmi_pll_config_in_car_module; |
29 | bool has_hostpc; |
30 | bool requires_usbmode_setup; |
31 | bool ; |
32 | bool requires_pmc_ao_power_up; |
33 | }; |
34 | |
35 | struct tegra_utmip_config { |
36 | u8 hssync_start_delay; |
37 | u8 elastic_limit; |
38 | u8 idle_wait_delay; |
39 | u8 term_range_adj; |
40 | bool xcvr_setup_use_fuses; |
41 | u8 xcvr_setup; |
42 | u8 xcvr_lsfslew; |
43 | u8 xcvr_lsrslew; |
44 | u8 xcvr_hsslew; |
45 | u8 hssquelch_level; |
46 | u8 hsdiscon_level; |
47 | }; |
48 | |
49 | enum tegra_usb_phy_port_speed { |
50 | TEGRA_USB_PHY_PORT_SPEED_FULL = 0, |
51 | TEGRA_USB_PHY_PORT_SPEED_LOW, |
52 | TEGRA_USB_PHY_PORT_SPEED_HIGH, |
53 | }; |
54 | |
55 | struct tegra_xtal_freq; |
56 | |
57 | struct tegra_usb_phy { |
58 | int irq; |
59 | int instance; |
60 | const struct tegra_xtal_freq *freq; |
61 | void __iomem *regs; |
62 | void __iomem *pad_regs; |
63 | struct clk *clk; |
64 | struct clk *pll_u; |
65 | struct clk *pad_clk; |
66 | struct regulator *vbus; |
67 | struct regmap *pmc_regmap; |
68 | enum usb_dr_mode mode; |
69 | void *config; |
70 | const struct tegra_phy_soc_config *soc_config; |
71 | struct usb_phy *ulpi; |
72 | struct usb_phy u_phy; |
73 | bool is_legacy_phy; |
74 | bool is_ulpi_phy; |
75 | struct gpio_desc *reset_gpio; |
76 | struct reset_control *pad_rst; |
77 | bool wakeup_enabled; |
78 | bool pad_wakeup; |
79 | bool powered_on; |
80 | }; |
81 | |
82 | void tegra_usb_phy_preresume(struct usb_phy *phy); |
83 | |
84 | void tegra_usb_phy_postresume(struct usb_phy *phy); |
85 | |
86 | void tegra_ehci_phy_restore_start(struct usb_phy *phy, |
87 | enum tegra_usb_phy_port_speed port_speed); |
88 | |
89 | void tegra_ehci_phy_restore_end(struct usb_phy *phy); |
90 | |
91 | #endif /* __TEGRA_USB_PHY_H */ |
92 | |