Re: [U-Boot] [PATCH 1/3] Create API to map between CPU physical and bus addresses

On Wednesday, March 25, 2015 at 03:07:33 AM, Stephen Warren wrote:

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

Applied to -next, thanks!

btw. can't you use __weak here instead of a new ifdef macro (which is not documented btw)?

Best regards, Marek Vasut