[PATCH v4 1/7] iommu: Add IOMMU uclass

[Tom Rini]

On Sat, Oct 23, 2021 at 04:58:01PM +0200, Mark Kettenis wrote:

> This uclass is intended to manage IOMMUs on systems where the
> IOMMUs are not in bypass mode by default.  In that case U-Boot
> cannot ignore the IOMMUs if it wants to use devices that need
> to do DMA and sit behind such an IOMMU.
> 
> This initial IOMMU uclass implementation does not implement and
> device ops and is intended for IOMMUs that have a bypass mode
> that does not require address translation.  Support for IOMMUs
> that do require address translation is planned and device ops
> will be defined when support for such IOMMUs will be added.
> 
> Signed-off-by: Mark Kettenis <kettenis at openbsd.org>
> Reviewed-by: Simon Glass <sjg at chromium.org>

Applied to u-boot/master, thanks!

-- 
Tom
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