| Message ID | 20170408120457.22750-2-linus.walleij@linaro.org (mailing list archive) |
|---|---|
| State | Changes Requested |
| Headers | show |
On Sat, Apr 08, 2017 at 02:04:53PM +0200, Linus Walleij wrote: > 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 > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > Seeking a DT maintainer ACK on this. > --- > Documentation/devicetree/bindings/dma/arm-pl08x.txt | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) Acked-by: Rob Herring <robh@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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:
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 Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- Seeking a DT maintainer ACK on this. --- Documentation/devicetree/bindings/dma/arm-pl08x.txt | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)