/* SPDX-License-Identifier: GPL-2.0+ */ /* * include/asm-microblaze/io.h -- Misc I/O operations * * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> * Copyright (C) 2001,02 NEC Corporation * Copyright (C) 2001,02 Miles Bader <miles@gnu.org> * * This file is subject to the terms and conditions of the GNU General * Public License. See the file COPYING in the main directory of this * archive for more details. * * Written by Miles Bader <miles@gnu.org> * Microblaze port by John Williams */ #ifndef __MICROBLAZE_IO_H__ #define __MICROBLAZE_IO_H__ #include <asm/types.h> #define IO_SPACE_LIMIT 0xFFFFFFFF #define readb(addr) \ ({ unsigned char __v = (*(volatile unsigned char *)(addr)); __v; }) #define readw(addr) \ ({ unsigned short __v = (*(volatile unsigned short *)(addr)); __v; }) #define readl(addr) \ ({ unsigned int __v = (*(volatile unsigned int *)(addr)); __v; }) #define writeb(b, addr) \ (void)((*(volatile unsigned char *)(addr)) = (b)) #define writew(b, addr) \ (void)((*(volatile unsigned short *)(addr)) = (b)) #define writel(b, addr) \ (void)((*(volatile unsigned int *)(addr)) = (b)) #define memset_io(a, b, c) memset((void *)(a), (b), (c)) #define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c)) #define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c)) #define inb(addr) readb(addr) #define inw(addr) readw(addr) #define inl(addr) readl(addr) #define outb(x, addr) ((void)writeb(x, addr)) #define outw(x, addr) ((void)writew(x, addr)) #define outl(x, addr) ((void)writel(x, addr)) #define out_arch(type, endian, addr, x) \ __raw_write##type(cpu_to_##endian(x), addr) #define in_arch(type, endian, addr) \ endian##_to_cpu(__raw_read##type(addr)) #define out_le16(addr, x) out_arch(w, le16, addr, x) #define out_le32(addr, x) out_arch(l, le32, addr, x) #define in_le16(addr) in_arch(w, le16, addr) #define in_le32(addr) in_arch(l, le32, addr) #define in_8(addr) readb(addr) #define in_be16(addr) in_arch(w, be16, addr) #define in_be32(addr) in_arch(l, be32, addr) #define out_8(addr, x) outb(x, addr) #define out_be16(addr, x) out_arch(w, be16, addr, x) #define out_be32(addr, x) out_arch(l, be32, addr, x) #define inb_p(port) inb((port)) #define outb_p(val, port) outb((val), (port)) #define inw_p(port) inw((port)) #define outw_p(val, port) outw((val), (port)) #define inl_p(port) inl((port)) #define outl_p(val, port) outl((val), (port)) /* Some defines to keep the MTD flash drivers happy */ #define __raw_readb readb #define __raw_readw readw #define __raw_readl readl #define __raw_writeb writeb #define __raw_writew writew #define __raw_writel writel static inline void io_insb(unsigned long port, void *dst, unsigned long count) { unsigned char *p = dst; while (count--) *p++ = inb(port); } static inline void io_insw(unsigned long port, void *dst, unsigned long count) { unsigned short *p = dst; while (count--) *p++ = inw(port); } static inline void io_insl(unsigned long port, void *dst, unsigned long count) { unsigned long *p = dst; while (count--) *p++ = inl(port); } static inline void io_outsb(unsigned long port, const void *src, unsigned long count) { const unsigned char *p = src; while (count--) outb(*p++, port); } static inline void io_outsw(unsigned long port, const void *src, unsigned long count) { const unsigned short *p = src; while (count--) outw(*p++, port); } static inline void io_outsl(unsigned long port, const void *src, unsigned long count) { const unsigned long *p = src; while (count--) outl(*p++, port); } #define outsb(a, b, l) io_outsb(a, b, l) #define outsw(a, b, l) io_outsw(a, b, l) #define outsl(a, b, l) io_outsl(a, b, l) #define insb(a, b, l) io_insb(a, b, l) #define insw(a, b, l) io_insw(a, b, l) #define insl(a, b, l) io_insl(a, b, l) #define ioremap_nocache(physaddr, size) (physaddr) #define ioremap_writethrough(physaddr, size) (physaddr) #define ioremap_fullcache(physaddr, size) (physaddr) static inline void sync(void) { } #include <asm-generic/io.h> #endif /* __MICROBLAZE_IO_H__ */