Searched hist:"927 c1fa266ead17acb09e9397dbd33578f3ee267" (Results 1 – 2 of 2) sorted by relevance
| /rk3399_rockchip-uboot/include/ |
| H A D | phys2bus.h | 927c1fa266ead17acb09e9397dbd33578f3ee267 Wed Mar 25 02:07:33 UTC 2015 Stephen Warren <swarren@wwwdotorg.org> Create API to map between CPU physical and bus addresses
On some SoCs, DMA-capable peripherals see a different address space to
the CPU's physical address space. Create an API to allow platform-agnostic
drivers to convert between the two address spaces when programming DMA
operations.
This API will exist on all platforms, but will have a dummy implementation
when this feature is not required. Other platforms will enable
CONFIG_PHYS_TO_BUS and provide the required implementation.
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
|
| /rk3399_rockchip-uboot/drivers/ |
| H A D | Kconfig | 927c1fa266ead17acb09e9397dbd33578f3ee267 Wed Mar 25 02:07:33 UTC 2015 Stephen Warren <swarren@wwwdotorg.org> Create API to map between CPU physical and bus addresses
On some SoCs, DMA-capable peripherals see a different address space to
the CPU's physical address space. Create an API to allow platform-agnostic
drivers to convert between the two address spaces when programming DMA
operations.
This API will exist on all platforms, but will have a dummy implementation
when this feature is not required. Other platforms will enable
CONFIG_PHYS_TO_BUS and provide the required implementation.
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
|