// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2018 Marvell * * Authors: * Igal Liberman <[email protected]> * Miquèl Raynal <[email protected]> * * Marvell A3700 UTMI PHY driver */ #include <linux/io.h> #include <linux/iopoll.h> #include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/of.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> #include <linux/regmap.h> /* Armada 3700 UTMI PHY registers */ #define USB2_PHY_PLL_CTRL_REG0 … #define PLL_REF_DIV_OFF … #define PLL_REF_DIV_MASK … #define PLL_REF_DIV_5 … #define PLL_FB_DIV_OFF … #define PLL_FB_DIV_MASK … #define PLL_FB_DIV_96 … #define PLL_SEL_LPFR_OFF … #define PLL_SEL_LPFR_MASK … #define PLL_READY … #define USB2_PHY_CAL_CTRL … #define PHY_PLLCAL_DONE … #define PHY_IMPCAL_DONE … #define USB2_RX_CHAN_CTRL1 … #define USB2PHY_SQCAL_DONE … #define USB2_PHY_OTG_CTRL … #define PHY_PU_OTG … #define USB2_PHY_CHRGR_DETECT … #define PHY_CDP_EN … #define PHY_DCP_EN … #define PHY_PD_EN … #define PHY_PU_CHRG_DTC … #define PHY_CDP_DM_AUTO … #define PHY_ENSWITCH_DP … #define PHY_ENSWITCH_DM … /* Armada 3700 USB miscellaneous registers */ #define USB2_PHY_CTRL(usb32) … #define RB_USB2PHY_PU … #define USB2_DP_PULLDN_DEV_MODE … #define USB2_DM_PULLDN_DEV_MODE … #define RB_USB2PHY_SUSPM(usb32) … #define PLL_LOCK_DELAY_US … #define PLL_LOCK_TIMEOUT_US … /** * struct mvebu_a3700_utmi_caps - PHY capabilities * * @usb32: Flag indicating which PHY is in use (impacts the register map): * - The UTMI PHY wired to the USB3/USB2 controller (otg) * - The UTMI PHY wired to the USB2 controller (host only) * @ops: PHY operations */ struct mvebu_a3700_utmi_caps { … }; /** * struct mvebu_a3700_utmi - PHY driver data * * @regs: PHY registers * @usb_misc: Regmap with USB miscellaneous registers including PHY ones * @caps: PHY capabilities * @phy: PHY handle */ struct mvebu_a3700_utmi { … }; static int mvebu_a3700_utmi_phy_power_on(struct phy *phy) { … } static int mvebu_a3700_utmi_phy_power_off(struct phy *phy) { … } static const struct phy_ops mvebu_a3700_utmi_phy_ops = …; static const struct mvebu_a3700_utmi_caps mvebu_a3700_utmi_otg_phy_caps = …; static const struct mvebu_a3700_utmi_caps mvebu_a3700_utmi_host_phy_caps = …; static const struct of_device_id mvebu_a3700_utmi_of_match[] = …; MODULE_DEVICE_TABLE(of, mvebu_a3700_utmi_of_match); static int mvebu_a3700_utmi_phy_probe(struct platform_device *pdev) { … } static struct platform_driver mvebu_a3700_utmi_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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