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1/*
2 * MUSB OTG driver register I/O
3 *
4 * Copyright 2005 Mentor Graphics Corporation
5 * Copyright (C) 2005-2006 by Texas Instruments
6 * Copyright (C) 2006-2007 Nokia Corporation
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
25 * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
28 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
29 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 */
34
35#ifndef __MUSB_LINUX_PLATFORM_ARCH_H__
36#define __MUSB_LINUX_PLATFORM_ARCH_H__
37
38#include <linux/io.h>
39
40#if !defined(CONFIG_ARM) && !defined(CONFIG_SUPERH) \
41 && !defined(CONFIG_AVR32) && !defined(CONFIG_PPC32) \
42 && !defined(CONFIG_PPC64) && !defined(CONFIG_BLACKFIN)
43static inline void readsl(const void __iomem *addr, void *buf, int len)
44 { insl((unsigned long)addr, buf, len); }
45static inline void readsw(const void __iomem *addr, void *buf, int len)
46 { insw((unsigned long)addr, buf, len); }
47static inline void readsb(const void __iomem *addr, void *buf, int len)
48 { insb((unsigned long)addr, buf, len); }
49
50static inline void writesl(const void __iomem *addr, const void *buf, int len)
51 { outsl((unsigned long)addr, buf, len); }
52static inline void writesw(const void __iomem *addr, const void *buf, int len)
53 { outsw((unsigned long)addr, buf, len); }
54static inline void writesb(const void __iomem *addr, const void *buf, int len)
55 { outsb((unsigned long)addr, buf, len); }
56
57#endif
58
59#ifndef CONFIG_BLACKFIN
60
61/* NOTE: these offsets are all in bytes */
62
63static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
64 { return __raw_readw(addr + offset); }
65
66static inline u32 musb_readl(const void __iomem *addr, unsigned offset)
67 { return __raw_readl(addr + offset); }
68
69
70static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
71 { __raw_writew(data, addr + offset); }
72
73static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
74 { __raw_writel(data, addr + offset); }
75
76
77#ifdef CONFIG_USB_MUSB_TUSB6010
78
79/*
80 * TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum.
81 */
82static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
83{
84 u16 tmp;
85 u8 val;
86
87 tmp = __raw_readw(addr + (offset & ~1));
88 if (offset & 1)
89 val = (tmp >> 8);
90 else
91 val = tmp & 0xff;
92
93 return val;
94}
95
96static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
97{
98 u16 tmp;
99
100 tmp = __raw_readw(addr + (offset & ~1));
101 if (offset & 1)
102 tmp = (data << 8) | (tmp & 0xff);
103 else
104 tmp = (tmp & 0xff00) | data;
105
106 __raw_writew(tmp, addr + (offset & ~1));
107}
108
109#else
110
111static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
112 { return __raw_readb(addr + offset); }
113
114static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
115 { __raw_writeb(data, addr + offset); }
116
117#endif /* CONFIG_USB_MUSB_TUSB6010 */
118
119#else
120
121static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
122 { return (u8) (bfin_read16(addr + offset)); }
123
124static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
125 { return bfin_read16(addr + offset); }
126
127static inline u32 musb_readl(const void __iomem *addr, unsigned offset)
128 { return (u32) (bfin_read16(addr + offset)); }
129
130static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
131 { bfin_write16(addr + offset, (u16) data); }
132
133static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
134 { bfin_write16(addr + offset, data); }
135
136static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
137 { bfin_write16(addr + offset, (u16) data); }
138
139#endif /* CONFIG_BLACKFIN */
140
141#endif
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * MUSB OTG driver register I/O
4 *
5 * Copyright 2005 Mentor Graphics Corporation
6 * Copyright (C) 2005-2006 by Texas Instruments
7 * Copyright (C) 2006-2007 Nokia Corporation
8 */
9
10#ifndef __MUSB_LINUX_PLATFORM_ARCH_H__
11#define __MUSB_LINUX_PLATFORM_ARCH_H__
12
13#include <linux/io.h>
14
15#define musb_ep_select(_mbase, _epnum) musb->io.ep_select((_mbase), (_epnum))
16
17/**
18 * struct musb_io - IO functions for MUSB
19 * @quirks: platform specific flags
20 * @ep_offset: platform specific function to get end point offset
21 * @ep_select: platform specific function to select end point
22 * @fifo_offset: platform specific function to get fifo offset
23 * @read_fifo: platform specific function to read fifo
24 * @write_fifo: platform specific function to write fifo
25 * @busctl_offset: platform specific function to get busctl offset
26 */
27struct musb_io {
28 u32 quirks;
29 u32 (*ep_offset)(u8 epnum, u16 offset);
30 void (*ep_select)(void __iomem *mbase, u8 epnum);
31 u32 (*fifo_offset)(u8 epnum);
32 void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf);
33 void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
34 u32 (*busctl_offset)(u8 epnum, u16 offset);
35};
36
37/* Do not add new entries here, add them the struct musb_io instead */
38extern u8 (*musb_readb)(const void __iomem *addr, unsigned offset);
39extern void (*musb_writeb)(void __iomem *addr, unsigned offset, u8 data);
40extern u16 (*musb_readw)(const void __iomem *addr, unsigned offset);
41extern void (*musb_writew)(void __iomem *addr, unsigned offset, u16 data);
42extern u32 (*musb_readl)(const void __iomem *addr, unsigned offset);
43extern void (*musb_writel)(void __iomem *addr, unsigned offset, u32 data);
44
45#endif