164 lines
4.3 KiB
C
164 lines
4.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2014-2017 Broadcom
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*/
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#ifndef _USB_BRCM_COMMON_INIT_H
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#define _USB_BRCM_COMMON_INIT_H
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#include <linux/regmap.h>
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#define USB_CTLR_MODE_HOST 0
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#define USB_CTLR_MODE_DEVICE 1
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#define USB_CTLR_MODE_DRD 2
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#define USB_CTLR_MODE_TYPEC_PD 3
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enum brcmusb_reg_sel {
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BRCM_REGS_CTRL = 0,
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BRCM_REGS_XHCI_EC,
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BRCM_REGS_XHCI_GBL,
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BRCM_REGS_USB_PHY,
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BRCM_REGS_USB_MDIO,
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BRCM_REGS_BDC_EC,
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BRCM_REGS_MAX
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};
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#define USB_CTRL_REG(base, reg) ((void __iomem *)base + USB_CTRL_##reg)
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#define USB_XHCI_EC_REG(base, reg) ((void __iomem *)base + USB_XHCI_EC_##reg)
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#define USB_CTRL_MASK(reg, field) \
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USB_CTRL_##reg##_##field##_MASK
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#define USB_CTRL_SET(base, reg, field) \
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brcm_usb_ctrl_set(USB_CTRL_REG(base, reg), \
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USB_CTRL_##reg##_##field##_MASK)
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#define USB_CTRL_UNSET(base, reg, field) \
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brcm_usb_ctrl_unset(USB_CTRL_REG(base, reg), \
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USB_CTRL_##reg##_##field##_MASK)
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struct brcm_usb_init_params;
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struct brcm_usb_init_ops {
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void (*init_ipp)(struct brcm_usb_init_params *params);
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void (*init_common)(struct brcm_usb_init_params *params);
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void (*init_eohci)(struct brcm_usb_init_params *params);
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void (*init_xhci)(struct brcm_usb_init_params *params);
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void (*uninit_common)(struct brcm_usb_init_params *params);
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void (*uninit_eohci)(struct brcm_usb_init_params *params);
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void (*uninit_xhci)(struct brcm_usb_init_params *params);
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int (*get_dual_select)(struct brcm_usb_init_params *params);
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void (*set_dual_select)(struct brcm_usb_init_params *params, int mode);
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};
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struct brcm_usb_init_params {
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void __iomem *regs[BRCM_REGS_MAX];
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int ioc;
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int ipp;
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int mode;
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u32 family_id;
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u32 product_id;
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int selected_family;
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const char *family_name;
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const u32 *usb_reg_bits_map;
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const struct brcm_usb_init_ops *ops;
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struct regmap *syscon_piarbctl;
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bool wake_enabled;
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bool suspend_with_clocks;
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};
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void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params);
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void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params);
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void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params);
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void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params);
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static inline u32 brcm_usb_readl(void __iomem *addr)
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{
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/*
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* MIPS endianness is configured by boot strap, which also reverses all
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* bus endianness (i.e., big-endian CPU + big endian bus ==> native
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* endian I/O).
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*
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* Other architectures (e.g., ARM) either do not support big endian, or
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* else leave I/O in little endian mode.
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*/
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if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
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return __raw_readl(addr);
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else
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return readl_relaxed(addr);
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}
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static inline void brcm_usb_writel(u32 val, void __iomem *addr)
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{
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/* See brcmnand_readl() comments */
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if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
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__raw_writel(val, addr);
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else
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writel_relaxed(val, addr);
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}
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static inline void brcm_usb_ctrl_unset(void __iomem *reg, u32 mask)
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{
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brcm_usb_writel(brcm_usb_readl(reg) & ~(mask), reg);
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};
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static inline void brcm_usb_ctrl_set(void __iomem *reg, u32 mask)
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{
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brcm_usb_writel(brcm_usb_readl(reg) | (mask), reg);
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};
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static inline void brcm_usb_init_ipp(struct brcm_usb_init_params *ini)
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{
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if (ini->ops->init_ipp)
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ini->ops->init_ipp(ini);
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}
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static inline void brcm_usb_init_common(struct brcm_usb_init_params *ini)
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{
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if (ini->ops->init_common)
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ini->ops->init_common(ini);
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}
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static inline void brcm_usb_init_eohci(struct brcm_usb_init_params *ini)
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{
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if (ini->ops->init_eohci)
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ini->ops->init_eohci(ini);
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}
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static inline void brcm_usb_init_xhci(struct brcm_usb_init_params *ini)
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{
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if (ini->ops->init_xhci)
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ini->ops->init_xhci(ini);
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}
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static inline void brcm_usb_uninit_common(struct brcm_usb_init_params *ini)
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{
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if (ini->ops->uninit_common)
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ini->ops->uninit_common(ini);
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}
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static inline void brcm_usb_uninit_eohci(struct brcm_usb_init_params *ini)
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{
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if (ini->ops->uninit_eohci)
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ini->ops->uninit_eohci(ini);
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}
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static inline void brcm_usb_uninit_xhci(struct brcm_usb_init_params *ini)
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{
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if (ini->ops->uninit_xhci)
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ini->ops->uninit_xhci(ini);
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}
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static inline int brcm_usb_get_dual_select(struct brcm_usb_init_params *ini)
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{
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if (ini->ops->get_dual_select)
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return ini->ops->get_dual_select(ini);
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return 0;
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}
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static inline void brcm_usb_set_dual_select(struct brcm_usb_init_params *ini,
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int mode)
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{
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if (ini->ops->set_dual_select)
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ini->ops->set_dual_select(ini, mode);
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}
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#endif /* _USB_BRCM_COMMON_INIT_H */
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