u-boot/arch/nds32
Masahiro Yamada 9d86b89c59 dma-mapping: move dma_map_(un)single() to <linux/dma-mapping.h>
The implementation of dma_map_single() and dma_unmap_single() is
exactly the same for all the architectures that support them.

Factor them out to <linux/dma-mapping.h>, and make all drivers to
include <linux/dma-mapping.h> instead of <asm/dma-mapping.h>.

If we need to differentiate them for some architectures, we can
move the generic definitions to <asm-generic/dma-mapping.h>.

Add some comments to the helpers. The concept is quite similar to
the DMA-API of Linux kernel. Drivers are agnostic about what is
going on behind the scene. Just call dma_map_single() before the
DMA, and dma_unmap_single() after it.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-02-19 21:27:30 +08:00
..
cpu/n1213 common: Move relocate_code() to init.h 2020-01-17 13:26:49 -05:00
dts dts: switch spi-flash to jedec, spi-nor compatible 2019-04-12 10:54:27 +05:30
include/asm dma-mapping: move dma_map_(un)single() to <linux/dma-mapping.h> 2020-02-19 21:27:30 +08:00
lib common: Move hang() to the same header as panic() 2020-01-17 17:53:40 -05:00
config.mk nds32: Fix boot fail issue when build with elf-mculib. 2019-01-22 17:36:04 +08:00
Kconfig CONFIG_SPL_SYS_[DI]CACHE_OFF: add 2019-05-18 08:15:35 -04:00
Makefile SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00