// SPDX-License-Identifier: GPL-2.0-or-later /* * Allwinner sun4i USB phy driver * * Copyright (C) 2014-2015 Hans de Goede <[email protected]> * * Based on code from * Allwinner Technology Co., Ltd. <www.allwinnertech.com> * * Modelled after: Samsung S5P/Exynos SoC series MIPI CSIS/DSIM DPHY driver * Copyright (C) 2013 Samsung Electronics Co., Ltd. * Author: Sylwester Nawrocki <[email protected]> */ #include <linux/clk.h> #include <linux/delay.h> #include <linux/err.h> #include <linux/extcon-provider.h> #include <linux/gpio/consumer.h> #include <linux/io.h> #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/of.h> #include <linux/of_gpio.h> #include <linux/phy/phy.h> #include <linux/phy/phy-sun4i-usb.h> #include <linux/platform_device.h> #include <linux/power_supply.h> #include <linux/regulator/consumer.h> #include <linux/reset.h> #include <linux/spinlock.h> #include <linux/usb/of.h> #include <linux/workqueue.h> #define REG_ISCR … #define REG_PHYCTL_A10 … #define REG_PHYBIST … #define REG_PHYTUNE … #define REG_PHYCTL_A33 … #define REG_PHY_OTGCTL … #define REG_HCI_PHY_CTL … #define PHYCTL_DATA … #define OTGCTL_ROUTE_MUSB … #define SUNXI_AHB_ICHR8_EN … #define SUNXI_AHB_INCR4_BURST_EN … #define SUNXI_AHB_INCRX_ALIGN_EN … #define SUNXI_ULPI_BYPASS_EN … /* ISCR, Interface Status and Control bits */ #define ISCR_ID_PULLUP_EN … #define ISCR_DPDM_PULLUP_EN … /* sunxi has the phy id/vbus pins not connected, so we use the force bits */ #define ISCR_FORCE_ID_MASK … #define ISCR_FORCE_ID_LOW … #define ISCR_FORCE_ID_HIGH … #define ISCR_FORCE_VBUS_MASK … #define ISCR_FORCE_VBUS_LOW … #define ISCR_FORCE_VBUS_HIGH … /* Common Control Bits for Both PHYs */ #define PHY_PLL_BW … #define PHY_RES45_CAL_EN … /* Private Control Bits for Each PHY */ #define PHY_TX_AMPLITUDE_TUNE … #define PHY_TX_SLEWRATE_TUNE … #define PHY_VBUSVALID_TH_SEL … #define PHY_PULLUP_RES_SEL … #define PHY_OTG_FUNC_EN … #define PHY_VBUS_DET_EN … #define PHY_DISCON_TH_SEL … #define PHY_SQUELCH_DETECT … /* A83T specific control bits for PHY0 */ #define PHY_CTL_VBUSVLDEXT … #define PHY_CTL_SIDDQ … #define PHY_CTL_H3_SIDDQ … /* A83T specific control bits for PHY2 HSIC */ #define SUNXI_EHCI_HS_FORCE … #define SUNXI_HSIC_CONNECT_DET … #define SUNXI_HSIC_CONNECT_INT … #define SUNXI_HSIC … #define MAX_PHYS … /* * Note do not raise the debounce time, we must report Vusb high within 100ms * otherwise we get Vbus errors */ #define DEBOUNCE_TIME … #define POLL_TIME … struct sun4i_usb_phy_cfg { … }; struct sun4i_usb_phy_data { … }; #define to_sun4i_usb_phy_data(phy) … static void sun4i_usb_phy0_update_iscr(struct phy *_phy, u32 clr, u32 set) { … } static void sun4i_usb_phy0_set_id_detect(struct phy *phy, u32 val) { … } static void sun4i_usb_phy0_set_vbus_detect(struct phy *phy, u32 val) { … } static void sun4i_usb_phy_write(struct sun4i_usb_phy *phy, u32 addr, u32 data, int len) { … } static void sun4i_usb_phy_passby(struct sun4i_usb_phy *phy, int enable) { … } static int sun4i_usb_phy_init(struct phy *_phy) { … } static int sun4i_usb_phy_exit(struct phy *_phy) { … } static int sun4i_usb_phy0_get_id_det(struct sun4i_usb_phy_data *data) { … } static int sun4i_usb_phy0_get_vbus_det(struct sun4i_usb_phy_data *data) { … } static bool sun4i_usb_phy0_have_vbus_det(struct sun4i_usb_phy_data *data) { … } static bool sun4i_usb_phy0_poll(struct sun4i_usb_phy_data *data) { … } static int sun4i_usb_phy_power_on(struct phy *_phy) { … } static int sun4i_usb_phy_power_off(struct phy *_phy) { … } static int sun4i_usb_phy_set_mode(struct phy *_phy, enum phy_mode mode, int submode) { … } void sun4i_usb_phy_set_squelch_detect(struct phy *_phy, bool enabled) { … } EXPORT_SYMBOL_GPL(…); static const struct phy_ops sun4i_usb_phy_ops = …; static void sun4i_usb_phy0_reroute(struct sun4i_usb_phy_data *data, int id_det) { … } static void sun4i_usb_phy0_id_vbus_det_scan(struct work_struct *work) { … } static irqreturn_t sun4i_usb_phy0_id_vbus_det_irq(int irq, void *dev_id) { … } static int sun4i_usb_phy0_vbus_notify(struct notifier_block *nb, unsigned long val, void *v) { … } static struct phy *sun4i_usb_phy_xlate(struct device *dev, const struct of_phandle_args *args) { … } static void sun4i_usb_phy_remove(struct platform_device *pdev) { … } static const unsigned int sun4i_usb_phy0_cable[] = …; static int sun4i_usb_phy_probe(struct platform_device *pdev) { … } static const struct sun4i_usb_phy_cfg suniv_f1c100s_cfg = …; static const struct sun4i_usb_phy_cfg sun4i_a10_cfg = …; static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = …; static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = …; static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = …; static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = …; static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = …; static const struct sun4i_usb_phy_cfg sun8i_a83t_cfg = …; static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = …; static const struct sun4i_usb_phy_cfg sun8i_r40_cfg = …; static const struct sun4i_usb_phy_cfg sun8i_v3s_cfg = …; static const struct sun4i_usb_phy_cfg sun20i_d1_cfg = …; static const struct sun4i_usb_phy_cfg sun50i_a64_cfg = …; static const struct sun4i_usb_phy_cfg sun50i_h6_cfg = …; static const struct sun4i_usb_phy_cfg sun50i_h616_cfg = …; static const struct of_device_id sun4i_usb_phy_of_match[] = …; MODULE_DEVICE_TABLE(of, sun4i_usb_phy_of_match); static struct platform_driver sun4i_usb_phy_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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