u-boot/include/mapmem.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (c) 2015 National Instruments
 *
 * (C) Copyright 2015
 * Joe Hershberger <joe.hershberger@ni.com>
 */

#ifndef __MAPMEM_H
#define __MAPMEM_H

/* Define a null map_sysmem() if the architecture doesn't use it */
# ifdef CONFIG_ARCH_MAP_SYSMEM
#include <asm/io.h>
# else
static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
{
	return (void *)(uintptr_t)paddr;
}

static inline void unmap_sysmem(const void *vaddr)
{
}

static inline phys_addr_t map_to_sysmem(const void *ptr)
{
	return (phys_addr_t)(uintptr_t)ptr;
}
# endif

#endif /* __MAPMEM_H */
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> 2018-05-06 21:58:06 +00:00			`/* SPDX-License-Identifier: GPL-2.0 */`
common: Make sure arch-specific map_sysmem() is defined In the case where the arch defines a custom map_sysmem(), make sure that including just mapmem.h is sufficient to have these functions as they are when the arch does not override it. Also split the non-arch specific functions out of common.h Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org> 2015-03-22 22:08:59 +00:00			`/*`
			`* Copyright (c) 2015 National Instruments`
			`*`
			`* (C) Copyright 2015`
			`* Joe Hershberger <joe.hershberger@ni.com>`
			`*/`

			`#ifndef __MAPMEM_H`
			`#define __MAPMEM_H`

			`/* Define a null map_sysmem() if the architecture doesn't use it */`
			`# ifdef CONFIG_ARCH_MAP_SYSMEM`
			`#include <asm/io.h>`
			`# else`
			`static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)`
			`{`
			`return (void *)(uintptr_t)paddr;`
			`}`

			`static inline void unmap_sysmem(const void *vaddr)`
			`{`
			`}`

			`static inline phys_addr_t map_to_sysmem(const void *ptr)`
			`{`
			`return (phys_addr_t)(uintptr_t)ptr;`
			`}`
			`# endif`

			`#endif /* __MAPMEM_H */`