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| author | Linus Walleij <linus.walleij@linaro.org> | 2017-05-21 00:42:51 +0300 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2017-05-24 07:14:32 +0300 |
| commit | 9e972571d4040213775eb40f17ac80c109e09f8a (patch) | |
| tree | 9df2c0e611dac101cc810a19b58009be33c3d326 /Documentation/devicetree/bindings | |
| parent | 4166a56aa8d5babe979d8e0834a741c9f015ad14 (diff) | |
| download | linux-9e972571d4040213775eb40f17ac80c109e09f8a.tar.xz | |
dmaengine: pl08x: Add Faraday FTDMAC020 to compatible list
This augments the PL08x bindings to include the Faraday Technology
FTDMAC020 DMA engine, as it is clearly a derivative of the PL08x
PrimeCell. Also specify that it needs the special peripheral ID
specified to work properly.
Cc: devicetree@vger.kernel.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'Documentation/devicetree/bindings')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/arm-pl08x.txt | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/dma/arm-pl08x.txt b/Documentation/devicetree/bindings/dma/arm-pl08x.txt index 8a0097a029d3..0ba81f79266f 100644 --- a/Documentation/devicetree/bindings/dma/arm-pl08x.txt +++ b/Documentation/devicetree/bindings/dma/arm-pl08x.txt @@ -3,6 +3,11 @@ Required properties: - compatible: "arm,pl080", "arm,primecell"; "arm,pl081", "arm,primecell"; + "faraday,ftdmac020", "arm,primecell" +- arm,primecell-periphid: on the FTDMAC020 the primecell ID is not hard-coded + in the hardware and must be specified here as <0x0003b080>. This number + follows the PrimeCell standard numbering using the JEP106 vendor code 0x38 + for Faraday Technology. - reg: Address range of the PL08x registers - interrupt: The PL08x interrupt number - clocks: The clock running the IP core clock @@ -20,8 +25,8 @@ Optional properties: - dma-requests: contains the total number of DMA requests supported by the DMAC - memcpy-burst-size: the size of the bursts for memcpy: 1, 4, 8, 16, 32 64, 128 or 256 bytes are legal values -- memcpy-bus-width: the bus width used for memcpy: 8, 16 or 32 are legal - values +- memcpy-bus-width: the bus width used for memcpy in bits: 8, 16 or 32 are legal + values, the Faraday FTDMAC020 can also accept 64 bits Clients Required properties: |