// SPDX-License-Identifier: GPL-2.0 /* * phy-rtk-usb2.c RTK usb2.0 PHY driver * * Copyright (C) 2023 Realtek Semiconductor Corporation * */ #include <linux/module.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/platform_device.h> #include <linux/uaccess.h> #include <linux/debugfs.h> #include <linux/nvmem-consumer.h> #include <linux/regmap.h> #include <linux/sys_soc.h> #include <linux/mfd/syscon.h> #include <linux/phy/phy.h> #include <linux/usb.h> /* GUSB2PHYACCn register */ #define PHY_NEW_REG_REQ … #define PHY_VSTS_BUSY … #define PHY_VCTRL_SHIFT … #define PHY_REG_DATA_MASK … #define GET_LOW_NIBBLE(addr) … #define GET_HIGH_NIBBLE(addr) … #define EFUS_USB_DC_CAL_RATE … #define EFUS_USB_DC_CAL_MAX … #define EFUS_USB_DC_DIS_RATE … #define EFUS_USB_DC_DIS_MAX … #define MAX_PHY_DATA_SIZE … #define OFFEST_PHY_READ … #define MAX_USB_PHY_NUM … #define MAX_USB_PHY_PAGE0_DATA_SIZE … #define MAX_USB_PHY_PAGE1_DATA_SIZE … #define MAX_USB_PHY_PAGE2_DATA_SIZE … #define SET_PAGE_OFFSET … #define SET_PAGE_0 … #define SET_PAGE_1 … #define SET_PAGE_2 … #define PAGE_START … #define PAGE0_0XE4 … #define PAGE0_0XE6 … #define PAGE0_0XE7 … #define PAGE1_0XE0 … #define PAGE1_0XE2 … #define SENSITIVITY_CTRL … #define ENABLE_AUTO_SENSITIVITY_CALIBRATION … #define DEFAULT_DC_DRIVING_VALUE … #define DEFAULT_DC_DISCONNECTION_VALUE … #define HS_CLK_SELECT … struct phy_reg { … }; struct phy_data { … }; struct phy_cfg { … }; struct phy_parameter { … }; struct rtk_phy { … }; /* mapping 0xE0 to 0 ... 0xE7 to 7, 0xF0 to 8 ,,, 0xF7 to 15 */ static inline int page_addr_to_array_index(u8 addr) { … } static inline u8 array_index_to_page_addr(int index) { … } #define PHY_IO_TIMEOUT_USEC … #define PHY_IO_DELAY_US … static inline int utmi_wait_register(void __iomem *reg, u32 mask, u32 result) { … } static char rtk_phy_read(struct phy_reg *phy_reg, char addr) { … } static int rtk_phy_write(struct phy_reg *phy_reg, char addr, char data) { … } static int rtk_phy_set_page(struct phy_reg *phy_reg, int page) { … } static u8 __updated_dc_disconnect_level_page0_0xe4(struct phy_cfg *phy_cfg, struct phy_parameter *phy_parameter, u8 data) { … } /* updated disconnect level at page0 */ static void update_dc_disconnect_level_at_page0(struct rtk_phy *rtk_phy, struct phy_parameter *phy_parameter, bool update) { … } static u8 __updated_dc_disconnect_level_page1_0xe2(struct phy_cfg *phy_cfg, struct phy_parameter *phy_parameter, u8 data) { … } /* updated disconnect level at page1 */ static void update_dc_disconnect_level_at_page1(struct rtk_phy *rtk_phy, struct phy_parameter *phy_parameter, bool update) { … } static void update_dc_disconnect_level(struct rtk_phy *rtk_phy, struct phy_parameter *phy_parameter, bool update) { … } static u8 __update_dc_driving_page0_0xe4(struct phy_cfg *phy_cfg, struct phy_parameter *phy_parameter, u8 data) { … } static void update_dc_driving_level(struct rtk_phy *rtk_phy, struct phy_parameter *phy_parameter) { … } static void update_hs_clk_select(struct rtk_phy *rtk_phy, struct phy_parameter *phy_parameter) { … } static void do_rtk_phy_toggle(struct rtk_phy *rtk_phy, int index, bool connect) { … } static int do_rtk_phy_init(struct rtk_phy *rtk_phy, int index) { … } static int rtk_phy_init(struct phy *phy) { … } static int rtk_phy_exit(struct phy *phy) { … } static void rtk_phy_toggle(struct rtk_phy *rtk_phy, bool connect, int port) { … } static int rtk_phy_connect(struct phy *phy, int port) { … } static int rtk_phy_disconnect(struct phy *phy, int port) { … } static const struct phy_ops ops = …; #ifdef CONFIG_DEBUG_FS static struct dentry *create_phy_debug_root(void) { … } static int rtk_usb2_parameter_show(struct seq_file *s, void *unused) { … } DEFINE_SHOW_ATTRIBUTE(…); static inline void create_debug_files(struct rtk_phy *rtk_phy) { … } static inline void remove_debug_files(struct rtk_phy *rtk_phy) { … } #else static inline void create_debug_files(struct rtk_phy *rtk_phy) { } static inline void remove_debug_files(struct rtk_phy *rtk_phy) { } #endif /* CONFIG_DEBUG_FS */ static int get_phy_data_by_efuse(struct rtk_phy *rtk_phy, struct phy_parameter *phy_parameter, int index) { … } static int parse_phy_data(struct rtk_phy *rtk_phy) { … } static int rtk_usb2phy_probe(struct platform_device *pdev) { … } static void rtk_usb2phy_remove(struct platform_device *pdev) { … } static const struct phy_cfg rtd1295_phy_cfg = …; static const struct phy_cfg rtd1395_phy_cfg = …; static const struct phy_cfg rtd1395_phy_cfg_2port = …; static const struct phy_cfg rtd1619_phy_cfg = …; static const struct phy_cfg rtd1319_phy_cfg = …; static const struct phy_cfg rtd1312c_phy_cfg = …; static const struct phy_cfg rtd1619b_phy_cfg = …; static const struct phy_cfg rtd1319d_phy_cfg = …; static const struct phy_cfg rtd1315e_phy_cfg = …; static const struct of_device_id usbphy_rtk_dt_match[] = …; MODULE_DEVICE_TABLE(of, usbphy_rtk_dt_match); static struct platform_driver rtk_usb2phy_driver = …; module_platform_driver(…) …; MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …;
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