1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) 2014-2017 Broadcom 4 */ 5 6#ifndef _USB_BRCM_COMMON_INIT_H 7#define _USB_BRCM_COMMON_INIT_H 8 9#include <linux/regmap.h> 10 11#define USB_CTLR_MODE_HOST 0 12#define USB_CTLR_MODE_DEVICE 1 13#define USB_CTLR_MODE_DRD 2 14#define USB_CTLR_MODE_TYPEC_PD 3 15 16enum brcmusb_reg_sel { 17 BRCM_REGS_CTRL = 0, 18 BRCM_REGS_XHCI_EC, 19 BRCM_REGS_XHCI_GBL, 20 BRCM_REGS_USB_PHY, 21 BRCM_REGS_USB_MDIO, 22 BRCM_REGS_BDC_EC, 23 BRCM_REGS_MAX 24}; 25 26#define USB_CTRL_REG(base, reg) ((void __iomem *)base + USB_CTRL_##reg) 27#define USB_XHCI_EC_REG(base, reg) ((void __iomem *)base + USB_XHCI_EC_##reg) 28#define USB_CTRL_MASK(reg, field) \ 29 USB_CTRL_##reg##_##field##_MASK 30#define USB_CTRL_SET(base, reg, field) \ 31 brcm_usb_ctrl_set(USB_CTRL_REG(base, reg), \ 32 USB_CTRL_##reg##_##field##_MASK) 33#define USB_CTRL_UNSET(base, reg, field) \ 34 brcm_usb_ctrl_unset(USB_CTRL_REG(base, reg), \ 35 USB_CTRL_##reg##_##field##_MASK) 36 37#define USB_XHCI_GBL_REG(base, reg) ((void __iomem *)base + USB_XHCI_GBL_##reg) 38#define USB_XHCI_GBL_SET(base, reg, field) \ 39 brcm_usb_ctrl_set(USB_XHCI_GBL_REG(base, reg), \ 40 USB_XHCI_GBL_##reg##_##field##_MASK) 41#define USB_XHCI_GBL_UNSET(base, reg, field) \ 42 brcm_usb_ctrl_unset(USB_XHCI_GBL_REG(base, reg), \ 43 USB_XHCI_GBL_##reg##_##field##_MASK) 44 45struct brcm_usb_init_params; 46 47struct brcm_usb_init_ops { 48 void (*init_ipp)(struct brcm_usb_init_params *params); 49 void (*init_common)(struct brcm_usb_init_params *params); 50 void (*init_eohci)(struct brcm_usb_init_params *params); 51 void (*init_xhci)(struct brcm_usb_init_params *params); 52 void (*uninit_common)(struct brcm_usb_init_params *params); 53 void (*uninit_eohci)(struct brcm_usb_init_params *params); 54 void (*uninit_xhci)(struct brcm_usb_init_params *params); 55 int (*get_dual_select)(struct brcm_usb_init_params *params); 56 void (*set_dual_select)(struct brcm_usb_init_params *params); 57}; 58 59struct brcm_usb_init_params { 60 void __iomem *regs[BRCM_REGS_MAX]; 61 int ioc; 62 int ipp; 63 int supported_port_modes; 64 int port_mode; 65 u32 family_id; 66 u32 product_id; 67 int selected_family; 68 const char *family_name; 69 const u32 *usb_reg_bits_map; 70 const struct brcm_usb_init_ops *ops; 71 struct regmap *syscon_piarbctl; 72 bool wake_enabled; 73}; 74 75void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params); 76void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params); 77void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params); 78void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params); 79 80static inline u32 brcm_usb_readl(void __iomem *addr) 81{ 82 /* 83 * MIPS endianness is configured by boot strap, which also reverses all 84 * bus endianness (i.e., big-endian CPU + big endian bus ==> native 85 * endian I/O). 86 * 87 * Other architectures (e.g., ARM) either do not support big endian, or 88 * else leave I/O in little endian mode. 89 */ 90 if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) 91 return __raw_readl(addr); 92 else 93 return readl_relaxed(addr); 94} 95 96static inline void brcm_usb_writel(u32 val, void __iomem *addr) 97{ 98 /* See brcmnand_readl() comments */ 99 if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) 100 __raw_writel(val, addr); 101 else 102 writel_relaxed(val, addr); 103} 104 105static inline void brcm_usb_ctrl_unset(void __iomem *reg, u32 mask) 106{ 107 brcm_usb_writel(brcm_usb_readl(reg) & ~(mask), reg); 108}; 109 110static inline void brcm_usb_ctrl_set(void __iomem *reg, u32 mask) 111{ 112 brcm_usb_writel(brcm_usb_readl(reg) | (mask), reg); 113}; 114 115static inline void brcm_usb_init_ipp(struct brcm_usb_init_params *ini) 116{ 117 if (ini->ops->init_ipp) 118 ini->ops->init_ipp(ini); 119} 120 121static inline void brcm_usb_init_common(struct brcm_usb_init_params *ini) 122{ 123 if (ini->ops->init_common) 124 ini->ops->init_common(ini); 125} 126 127static inline void brcm_usb_init_eohci(struct brcm_usb_init_params *ini) 128{ 129 if (ini->ops->init_eohci) 130 ini->ops->init_eohci(ini); 131} 132 133static inline void brcm_usb_init_xhci(struct brcm_usb_init_params *ini) 134{ 135 if (ini->ops->init_xhci) 136 ini->ops->init_xhci(ini); 137} 138 139static inline void brcm_usb_uninit_common(struct brcm_usb_init_params *ini) 140{ 141 if (ini->ops->uninit_common) 142 ini->ops->uninit_common(ini); 143} 144 145static inline void brcm_usb_uninit_eohci(struct brcm_usb_init_params *ini) 146{ 147 if (ini->ops->uninit_eohci) 148 ini->ops->uninit_eohci(ini); 149} 150 151static inline void brcm_usb_uninit_xhci(struct brcm_usb_init_params *ini) 152{ 153 if (ini->ops->uninit_xhci) 154 ini->ops->uninit_xhci(ini); 155} 156 157static inline int brcm_usb_get_dual_select(struct brcm_usb_init_params *ini) 158{ 159 if (ini->ops->get_dual_select) 160 return ini->ops->get_dual_select(ini); 161 return 0; 162} 163 164static inline void brcm_usb_set_dual_select(struct brcm_usb_init_params *ini) 165{ 166 if (ini->ops->set_dual_select) 167 ini->ops->set_dual_select(ini); 168} 169 170#endif /* _USB_BRCM_COMMON_INIT_H */ 171