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