From: Marek Vasut <marex@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/3] Create API to map between CPU physical and bus addresses
Date: Wed, 25 Mar 2015 12:55:41 +0100 [thread overview]
Message-ID: <201503251255.41873.marex@denx.de> (raw)
In-Reply-To: <1427249255-27427-1-git-send-email-swarren@wwwdotorg.org>
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
next prev parent reply other threads:[~2015-03-25 11:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-25 2:07 [U-Boot] [PATCH 1/3] Create API to map between CPU physical and bus addresses Stephen Warren
2015-03-25 2:07 ` [U-Boot] [PATCH 2/3] ARM: bcm2835: implement phys_to_bus/bus_to_phys Stephen Warren
2015-03-25 11:53 ` Marek Vasut
2015-03-25 2:07 ` [U-Boot] [PATCH 3/3] usb: dwc2: use phys_to_bus/bus_to_phys Stephen Warren
2015-03-25 11:55 ` Marek Vasut
2015-03-25 11:55 ` Marek Vasut [this message]
2015-03-25 14:40 ` [U-Boot] [PATCH 1/3] Create API to map between CPU physical and bus addresses Stephen Warren
2015-03-25 14:57 ` Marek Vasut
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