u-boot-brain/drivers/mtd/nand
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
..
raw dma-mapping: move dma_map_(un)single() to <linux/dma-mapping.h> 2020-02-19 21:27:30 +08:00
spi dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
bbt.c dm: core: Require users of devres to include the header 2020-02-05 19:33:46 -07:00
core.c dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
Kconfig mtd: nand: Add core infrastructure to support SPI NANDs 2018-09-20 20:10:49 +05:30
Makefile mtd: Makefile: deep cleanup 2019-12-04 17:10:51 -05:00