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550a7375 FB |
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 | ||
2c557a4a BW |
40 | #ifndef CONFIG_BLACKFIN |
41 | ||
550a7375 FB |
42 | /* NOTE: these offsets are all in bytes */ |
43 | ||
44 | static inline u16 musb_readw(const void __iomem *addr, unsigned offset) | |
45 | { return __raw_readw(addr + offset); } | |
46 | ||
47 | static inline u32 musb_readl(const void __iomem *addr, unsigned offset) | |
48 | { return __raw_readl(addr + offset); } | |
49 | ||
50 | ||
51 | static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data) | |
52 | { __raw_writew(data, addr + offset); } | |
53 | ||
54 | static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data) | |
55 | { __raw_writel(data, addr + offset); } | |
56 | ||
57 | ||
9a35f876 | 58 | #if defined(CONFIG_USB_MUSB_TUSB6010) || defined (CONFIG_USB_MUSB_TUSB6010_MODULE) |
550a7375 FB |
59 | |
60 | /* | |
61 | * TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum. | |
62 | */ | |
63 | static inline u8 musb_readb(const void __iomem *addr, unsigned offset) | |
64 | { | |
65 | u16 tmp; | |
66 | u8 val; | |
67 | ||
68 | tmp = __raw_readw(addr + (offset & ~1)); | |
69 | if (offset & 1) | |
70 | val = (tmp >> 8); | |
71 | else | |
72 | val = tmp & 0xff; | |
73 | ||
74 | return val; | |
75 | } | |
76 | ||
77 | static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data) | |
78 | { | |
79 | u16 tmp; | |
80 | ||
81 | tmp = __raw_readw(addr + (offset & ~1)); | |
82 | if (offset & 1) | |
83 | tmp = (data << 8) | (tmp & 0xff); | |
84 | else | |
85 | tmp = (tmp & 0xff00) | data; | |
86 | ||
87 | __raw_writew(tmp, addr + (offset & ~1)); | |
88 | } | |
89 | ||
90 | #else | |
91 | ||
92 | static inline u8 musb_readb(const void __iomem *addr, unsigned offset) | |
93 | { return __raw_readb(addr + offset); } | |
94 | ||
95 | static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data) | |
96 | { __raw_writeb(data, addr + offset); } | |
97 | ||
7c925546 | 98 | #endif /* CONFIG_USB_MUSB_TUSB6010 */ |
550a7375 | 99 | |
2c557a4a BW |
100 | #else |
101 | ||
102 | static inline u8 musb_readb(const void __iomem *addr, unsigned offset) | |
103 | { return (u8) (bfin_read16(addr + offset)); } | |
104 | ||
105 | static inline u16 musb_readw(const void __iomem *addr, unsigned offset) | |
106 | { return bfin_read16(addr + offset); } | |
107 | ||
108 | static inline u32 musb_readl(const void __iomem *addr, unsigned offset) | |
109 | { return (u32) (bfin_read16(addr + offset)); } | |
110 | ||
111 | static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data) | |
112 | { bfin_write16(addr + offset, (u16) data); } | |
113 | ||
114 | static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data) | |
115 | { bfin_write16(addr + offset, data); } | |
116 | ||
117 | static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data) | |
118 | { bfin_write16(addr + offset, (u16) data); } | |
119 | ||
120 | #endif /* CONFIG_BLACKFIN */ | |
121 | ||
550a7375 | 122 | #endif |