u-boot/arch/riscv
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 riscv: Remove unnecessary instruction 2020-02-10 14:51:52 +08:00
dts riscv: dts: Add #address-cells and #size-cells in nor node 2019-12-10 08:23:10 +08:00
include/asm dma-mapping: move dma_map_(un)single() to <linux/dma-mapping.h> 2020-02-19 21:27:30 +08:00
lib sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
config.mk riscv: qemu: define standalone load address 2019-01-15 09:36:31 +08:00
Kconfig riscv: Add option to print registers on exception 2020-02-10 14:51:08 +08:00
Makefile riscv: add Kconfig entries for the code model 2018-12-18 09:56:26 +08:00