2 * Copyright (c) 2014 François Tigeot
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include <machine/pmap.h>
33 #define ioread8(addr) *(volatile uint8_t *)((char *)addr)
34 #define ioread16(addr) *(volatile uint16_t *)((char *)addr)
35 #define ioread32(addr) *(volatile uint32_t *)((char *)addr)
37 #define iowrite8(data, addr) *(volatile uint8_t *)((char *)addr) = data;
38 #define iowrite16(data, addr) *(volatile uint16_t *)((char *)addr) = data;
39 #define iowrite32(data, addr) *(volatile uint32_t *)((char *)addr) = data;
41 /* ioremap: map bus memory into CPU space */
42 static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
44 return pmap_mapdev_uncacheable(offset, size);
47 static inline void __iomem *ioremap_wc(resource_size_t phys_addr, unsigned long size)
49 return pmap_mapdev_attr(phys_addr, size, VM_MEMATTR_WRITE_COMBINING);
52 #endif /* _ASM_IO_H_ */