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 * SPDX-License-Identifier: GPL-2.0 13 */ 14 15 #ifndef __MUSB_LINUX_PLATFORM_ARCH_H__ 16 #define __MUSB_LINUX_PLATFORM_ARCH_H__ 17 18 #ifndef __UBOOT__ 19 #include <linux/io.h> 20 #else 21 #include <asm/io.h> 22 #endif 23 24 #if !defined(CONFIG_ARM) && !defined(CONFIG_SUPERH) \ 25 && !defined(CONFIG_AVR32) && !defined(CONFIG_PPC32) \ 26 && !defined(CONFIG_PPC64) && !defined(CONFIG_MIPS) \ 27 && !defined(CONFIG_M68K) 28 static inline void readsl(const void __iomem *addr, void *buf, int len) 29 { insl((unsigned long)addr, buf, len); } 30 static inline void readsw(const void __iomem *addr, void *buf, int len) 31 { insw((unsigned long)addr, buf, len); } 32 static inline void readsb(const void __iomem *addr, void *buf, int len) 33 { insb((unsigned long)addr, buf, len); } 34 35 static inline void writesl(const void __iomem *addr, const void *buf, int len) 36 { outsl((unsigned long)addr, buf, len); } 37 static inline void writesw(const void __iomem *addr, const void *buf, int len) 38 { outsw((unsigned long)addr, buf, len); } 39 static inline void writesb(const void __iomem *addr, const void *buf, int len) 40 { outsb((unsigned long)addr, buf, len); } 41 42 #endif 43 44 /* NOTE: these offsets are all in bytes */ 45 46 static inline u16 musb_readw(const void __iomem *addr, unsigned offset) 47 { return __raw_readw(addr + offset); } 48 49 static inline u32 musb_readl(const void __iomem *addr, unsigned offset) 50 { return __raw_readl(addr + offset); } 51 52 53 static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data) 54 { __raw_writew(data, addr + offset); } 55 56 static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data) 57 { __raw_writel(data, addr + offset); } 58 59 60 #if defined(CONFIG_USB_MUSB_TUSB6010) || defined (CONFIG_USB_MUSB_TUSB6010_MODULE) 61 62 /* 63 * TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum. 64 */ 65 static inline u8 musb_readb(const void __iomem *addr, unsigned offset) 66 { 67 u16 tmp; 68 u8 val; 69 70 tmp = __raw_readw(addr + (offset & ~1)); 71 if (offset & 1) 72 val = (tmp >> 8); 73 else 74 val = tmp & 0xff; 75 76 return val; 77 } 78 79 static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data) 80 { 81 u16 tmp; 82 83 tmp = __raw_readw(addr + (offset & ~1)); 84 if (offset & 1) 85 tmp = (data << 8) | (tmp & 0xff); 86 else 87 tmp = (tmp & 0xff00) | data; 88 89 __raw_writew(tmp, addr + (offset & ~1)); 90 } 91 92 #else 93 94 static inline u8 musb_readb(const void __iomem *addr, unsigned offset) 95 { return __raw_readb(addr + offset); } 96 97 static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data) 98 { __raw_writeb(data, addr + offset); } 99 100 #endif /* CONFIG_USB_MUSB_TUSB6010 */ 101 102 #endif 103