From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Vasut Date: Wed, 25 Mar 2015 12:55:41 +0100 Subject: [U-Boot] [PATCH 1/3] Create API to map between CPU physical and bus addresses In-Reply-To: <1427249255-27427-1-git-send-email-swarren@wwwdotorg.org> References: <1427249255-27427-1-git-send-email-swarren@wwwdotorg.org> Message-ID: <201503251255.41873.marex@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 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