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 16 enum 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 45 struct brcm_usb_init_params; 46 47 struct 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 59 struct 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 75 void brcm_usb_dvr_init_74110(struct brcm_usb_init_params *params); 76 void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params); 77 void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params); 78 void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params); 79 void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params); 80 81 static inline u32 brcm_usb_readl(void __iomem *addr) 82 { 83 /* 84 * MIPS endianness is configured by boot strap, which also reverses all 85 * bus endianness (i.e., big-endian CPU + big endian bus ==> native 86 * endian I/O). 87 * 88 * Other architectures (e.g., ARM) either do not support big endian, or 89 * else leave I/O in little endian mode. 90 */ 91 if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) 92 return __raw_readl(addr); 93 else 94 return readl_relaxed(addr); 95 } 96 97 static inline void brcm_usb_writel(u32 val, void __iomem *addr) 98 { 99 /* See brcmnand_readl() comments */ 100 if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) 101 __raw_writel(val, addr); 102 else 103 writel_relaxed(val, addr); 104 } 105 106 static inline void brcm_usb_ctrl_unset(void __iomem *reg, u32 mask) 107 { 108 brcm_usb_writel(brcm_usb_readl(reg) & ~(mask), reg); 109 }; 110 111 static inline void brcm_usb_ctrl_set(void __iomem *reg, u32 mask) 112 { 113 brcm_usb_writel(brcm_usb_readl(reg) | (mask), reg); 114 }; 115 116 static inline void brcm_usb_init_ipp(struct brcm_usb_init_params *ini) 117 { 118 if (ini->ops->init_ipp) 119 ini->ops->init_ipp(ini); 120 } 121 122 static inline void brcm_usb_init_common(struct brcm_usb_init_params *ini) 123 { 124 if (ini->ops->init_common) 125 ini->ops->init_common(ini); 126 } 127 128 static inline void brcm_usb_init_eohci(struct brcm_usb_init_params *ini) 129 { 130 if (ini->ops->init_eohci) 131 ini->ops->init_eohci(ini); 132 } 133 134 static inline void brcm_usb_init_xhci(struct brcm_usb_init_params *ini) 135 { 136 if (ini->ops->init_xhci) 137 ini->ops->init_xhci(ini); 138 } 139 140 static inline void brcm_usb_uninit_common(struct brcm_usb_init_params *ini) 141 { 142 if (ini->ops->uninit_common) 143 ini->ops->uninit_common(ini); 144 } 145 146 static inline void brcm_usb_uninit_eohci(struct brcm_usb_init_params *ini) 147 { 148 if (ini->ops->uninit_eohci) 149 ini->ops->uninit_eohci(ini); 150 } 151 152 static inline void brcm_usb_uninit_xhci(struct brcm_usb_init_params *ini) 153 { 154 if (ini->ops->uninit_xhci) 155 ini->ops->uninit_xhci(ini); 156 } 157 158 static inline int brcm_usb_get_dual_select(struct brcm_usb_init_params *ini) 159 { 160 if (ini->ops->get_dual_select) 161 return ini->ops->get_dual_select(ini); 162 return 0; 163 } 164 165 static inline void brcm_usb_set_dual_select(struct brcm_usb_init_params *ini) 166 { 167 if (ini->ops->set_dual_select) 168 ini->ops->set_dual_select(ini); 169 } 170 171 #endif /* _USB_BRCM_COMMON_INIT_H */ 172