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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
37struct brcm_usb_init_params;
38
39struct 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
51struct 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
67void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params);
68void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params);
69void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params);
70void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params);
71
72static 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
88static 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
97static inline void brcm_usb_ctrl_unset(void __iomem *reg, u32 mask)
98{
99 brcm_usb_writel(brcm_usb_readl(reg) & ~(mask), reg);
100};
101
102static inline void brcm_usb_ctrl_set(void __iomem *reg, u32 mask)
103{
104 brcm_usb_writel(brcm_usb_readl(reg) | (mask), reg);
105};
106
107static 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
113static 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
119static 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
125static 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
131static 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
137static 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
143static 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
149static 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
156static 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 */
1/*
2 * Copyright (C) 2014-2017 Broadcom
3 *
4 * This software is licensed under the terms of the GNU General Public
5 * License version 2, as published by the Free Software Foundation, and
6 * may be copied, distributed, and modified under those terms.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 */
13
14#ifndef _USB_BRCM_COMMON_INIT_H
15#define _USB_BRCM_COMMON_INIT_H
16
17#define USB_CTLR_MODE_HOST 0
18#define USB_CTLR_MODE_DEVICE 1
19#define USB_CTLR_MODE_DRD 2
20#define USB_CTLR_MODE_TYPEC_PD 3
21
22struct brcm_usb_init_params;
23
24struct brcm_usb_init_params {
25 void __iomem *ctrl_regs;
26 void __iomem *xhci_ec_regs;
27 int ioc;
28 int ipp;
29 int mode;
30 u32 family_id;
31 u32 product_id;
32 int selected_family;
33 const char *family_name;
34 const u32 *usb_reg_bits_map;
35};
36
37void brcm_usb_set_family_map(struct brcm_usb_init_params *params);
38int brcm_usb_init_get_dual_select(struct brcm_usb_init_params *params);
39void brcm_usb_init_set_dual_select(struct brcm_usb_init_params *params,
40 int mode);
41
42void brcm_usb_init_ipp(struct brcm_usb_init_params *ini);
43void brcm_usb_init_common(struct brcm_usb_init_params *ini);
44void brcm_usb_init_eohci(struct brcm_usb_init_params *ini);
45void brcm_usb_init_xhci(struct brcm_usb_init_params *ini);
46void brcm_usb_uninit_common(struct brcm_usb_init_params *ini);
47void brcm_usb_uninit_eohci(struct brcm_usb_init_params *ini);
48void brcm_usb_uninit_xhci(struct brcm_usb_init_params *ini);
49
50#endif /* _USB_BRCM_COMMON_INIT_H */