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 struct brcm_usb_init_params; 38 39 struct brcm_usb_init_ops { 40 void (*init_ipp)(struct brcm_usb_init_params *params); 41 void (*init_common)(struct brcm_usb_init_params *params); 42 void (*init_eohci)(struct brcm_usb_init_params *params); 43 void (*init_xhci)(struct brcm_usb_init_params *params); 44 void (*uninit_common)(struct brcm_usb_init_params *params); 45 void (*uninit_eohci)(struct brcm_usb_init_params *params); 46 void (*uninit_xhci)(struct brcm_usb_init_params *params); 47 int (*get_dual_select)(struct brcm_usb_init_params *params); 48 void (*set_dual_select)(struct brcm_usb_init_params *params); 49 }; 50 51 struct brcm_usb_init_params { 52 void __iomem *regs[BRCM_REGS_MAX]; 53 int ioc; 54 int ipp; 55 int supported_port_modes; 56 int port_mode; 57 u32 family_id; 58 u32 product_id; 59 int selected_family; 60 const char *family_name; 61 const u32 *usb_reg_bits_map; 62 const struct brcm_usb_init_ops *ops; 63 struct regmap *syscon_piarbctl; 64 bool wake_enabled; 65 }; 66 67 void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params); 68 void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params); 69 void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params); 70 void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params); 71 72 static inline u32 brcm_usb_readl(void __iomem *addr) 73 { 74 /* 75 * MIPS endianness is configured by boot strap, which also reverses all 76 * bus endianness (i.e., big-endian CPU + big endian bus ==> native 77 * endian I/O). 78 * 79 * Other architectures (e.g., ARM) either do not support big endian, or 80 * else leave I/O in little endian mode. 81 */ 82 if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) 83 return __raw_readl(addr); 84 else 85 return readl_relaxed(addr); 86 } 87 88 static inline void brcm_usb_writel(u32 val, void __iomem *addr) 89 { 90 /* See brcmnand_readl() comments */ 91 if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) 92 __raw_writel(val, addr); 93 else 94 writel_relaxed(val, addr); 95 } 96 97 static inline void brcm_usb_ctrl_unset(void __iomem *reg, u32 mask) 98 { 99 brcm_usb_writel(brcm_usb_readl(reg) & ~(mask), reg); 100 }; 101 102 static inline void brcm_usb_ctrl_set(void __iomem *reg, u32 mask) 103 { 104 brcm_usb_writel(brcm_usb_readl(reg) | (mask), reg); 105 }; 106 107 static inline void brcm_usb_init_ipp(struct brcm_usb_init_params *ini) 108 { 109 if (ini->ops->init_ipp) 110 ini->ops->init_ipp(ini); 111 } 112 113 static inline void brcm_usb_init_common(struct brcm_usb_init_params *ini) 114 { 115 if (ini->ops->init_common) 116 ini->ops->init_common(ini); 117 } 118 119 static inline void brcm_usb_init_eohci(struct brcm_usb_init_params *ini) 120 { 121 if (ini->ops->init_eohci) 122 ini->ops->init_eohci(ini); 123 } 124 125 static inline void brcm_usb_init_xhci(struct brcm_usb_init_params *ini) 126 { 127 if (ini->ops->init_xhci) 128 ini->ops->init_xhci(ini); 129 } 130 131 static inline void brcm_usb_uninit_common(struct brcm_usb_init_params *ini) 132 { 133 if (ini->ops->uninit_common) 134 ini->ops->uninit_common(ini); 135 } 136 137 static inline void brcm_usb_uninit_eohci(struct brcm_usb_init_params *ini) 138 { 139 if (ini->ops->uninit_eohci) 140 ini->ops->uninit_eohci(ini); 141 } 142 143 static inline void brcm_usb_uninit_xhci(struct brcm_usb_init_params *ini) 144 { 145 if (ini->ops->uninit_xhci) 146 ini->ops->uninit_xhci(ini); 147 } 148 149 static inline int brcm_usb_get_dual_select(struct brcm_usb_init_params *ini) 150 { 151 if (ini->ops->get_dual_select) 152 return ini->ops->get_dual_select(ini); 153 return 0; 154 } 155 156 static inline void brcm_usb_set_dual_select(struct brcm_usb_init_params *ini) 157 { 158 if (ini->ops->set_dual_select) 159 ini->ops->set_dual_select(ini); 160 } 161 162 #endif /* _USB_BRCM_COMMON_INIT_H */ 163