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2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
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>
2017-09-12linux/io.h: import generic ioread* / iowrite* accessors from LinuxMasahiro Yamada
Some drivers in Linux (ex. drivers/mtd/nand/denali.c) use ioread*/iowrite* accessors. Import them to make drivers more synced. I copied code from include/asm-generic/io.h of Linux. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-07-14linux/io.h: add generic ioremap()/iounmap() definesMasahiro Yamada
For most of architectures in U-Boot, virtual address is straight mapped to physical address. So, it makes sense to have generic defines of ioremap and friends in <linux/io.h>. All of them are just empty and will disappear at compile time, but they will be helpful to implement drivers which are counterparts of Linux ones. I notice MIPS already has its own implementation, so I added a Kconfig symbol CONFIG_HAVE_ARCH_IOREMAP which MIPS (and maybe Sandbox as well) can select. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2015-05-28include: introduce include/linux/io.h as a wrapper of asm/io.hMasahiro Yamada
In the latest Linux coding style, <linux/io.h> should be included rather than <asm/io.h>. To follow this standard also in U-Boot, add include/linux/io.h. Currently, it just includes <asm/io.h>. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>