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| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2020-02-18 15:31:26 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-03-02 10:14:06 +0100 |
| commit | 0ebcf1a274c5467c8ed55d0e01db4b414fe4518d (patch) | |
| tree | 3c10ebf02c1cfacc238ce8e79399d69f1e2b681c /Documentation/devicetree/bindings/dma/socionext,uniphier-xdmac.yaml | |
| parent | dt-bindings: dma: ti: k3-udma: Update for atype support (virtualization) (diff) | |
| download | linux-0ebcf1a274c5467c8ed55d0e01db4b414fe4518d.tar.xz linux-0ebcf1a274c5467c8ed55d0e01db4b414fe4518d.zip | |
dmaengine: ti: k3-udma: Implement support for atype (for virtualization)
The DT for virtualized hosts have dma-cells == 2 where the second parameter
is the ATYPE for the channel.
In case of dma-cells == 1 we can configure the ATYPE as 0 (reset value).
The ATYPE defined for j721e are:
0: pointers are physical addresses (no translation)
1: pointers are intermediate addresses (PVU)
2: pointers are virtual addresses (SMMU)
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200218143126.11361-3-peter.ujfalusi@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/dma/socionext,uniphier-xdmac.yaml')
0 files changed, 0 insertions, 0 deletions