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-rw-r--r--Documentation/devicetree/bindings/dma/arm-pl08x.txt9
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: