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 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 as published by the Free Software Foundation.
12 */
13
14 #ifndef __MUSB_LINUX_PLATFORM_ARCH_H__
15 #define __MUSB_LINUX_PLATFORM_ARCH_H__
16
17 #ifndef __UBOOT__
18 #include <linux/io.h>
19 #else
20 #include <asm/io.h>
21 #endif
22
23 #if !defined(CONFIG_ARM) && !defined(CONFIG_SUPERH) \
24 && !defined(CONFIG_PPC32) \
25 && !defined(CONFIG_PPC64) && !defined(CONFIG_MIPS) \
26 && !defined(CONFIG_M68K)
readsl(const void __iomem * addr,void * buf,int len)27 static inline void readsl(const void __iomem *addr, void *buf, int len)
28 { insl((unsigned long)addr, buf, len); }
readsw(const void __iomem * addr,void * buf,int len)29 static inline void readsw(const void __iomem *addr, void *buf, int len)
30 { insw((unsigned long)addr, buf, len); }
readsb(const void __iomem * addr,void * buf,int len)31 static inline void readsb(const void __iomem *addr, void *buf, int len)
32 { insb((unsigned long)addr, buf, len); }
33
writesl(const void __iomem * addr,const void * buf,int len)34 static inline void writesl(const void __iomem *addr, const void *buf, int len)
35 { outsl((unsigned long)addr, buf, len); }
writesw(const void __iomem * addr,const void * buf,int len)36 static inline void writesw(const void __iomem *addr, const void *buf, int len)
37 { outsw((unsigned long)addr, buf, len); }
writesb(const void __iomem * addr,const void * buf,int len)38 static inline void writesb(const void __iomem *addr, const void *buf, int len)
39 { outsb((unsigned long)addr, buf, len); }
40
41 #endif
42
43 /* NOTE: these offsets are all in bytes */
44
musb_readw(const void __iomem * addr,unsigned offset)45 static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
46 { return __raw_readw(addr + offset); }
47
musb_readl(const void __iomem * addr,unsigned offset)48 static inline u32 musb_readl(const void __iomem *addr, unsigned offset)
49 { return __raw_readl(addr + offset); }
50
51
musb_writew(void __iomem * addr,unsigned offset,u16 data)52 static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
53 { __raw_writew(data, addr + offset); }
54
musb_writel(void __iomem * addr,unsigned offset,u32 data)55 static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
56 { __raw_writel(data, addr + offset); }
57
58
59 #if defined(CONFIG_USB_MUSB_TUSB6010) || defined (CONFIG_USB_MUSB_TUSB6010_MODULE)
60
61 /*
62 * TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum.
63 */
musb_readb(const void __iomem * addr,unsigned offset)64 static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
65 {
66 u16 tmp;
67 u8 val;
68
69 tmp = __raw_readw(addr + (offset & ~1));
70 if (offset & 1)
71 val = (tmp >> 8);
72 else
73 val = tmp & 0xff;
74
75 return val;
76 }
77
musb_writeb(void __iomem * addr,unsigned offset,u8 data)78 static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
79 {
80 u16 tmp;
81
82 tmp = __raw_readw(addr + (offset & ~1));
83 if (offset & 1)
84 tmp = (data << 8) | (tmp & 0xff);
85 else
86 tmp = (tmp & 0xff00) | data;
87
88 __raw_writew(tmp, addr + (offset & ~1));
89 }
90
91 #else
92
musb_readb(const void __iomem * addr,unsigned offset)93 static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
94 { return __raw_readb(addr + offset); }
95
musb_writeb(void __iomem * addr,unsigned offset,u8 data)96 static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
97 { __raw_writeb(data, addr + offset); }
98
99 #endif /* CONFIG_USB_MUSB_TUSB6010 */
100
101 #endif
102