diff options
Diffstat (limited to 'dts/Bindings/dma/sifive,fu540-c000-pdma.yaml')
| -rw-r--r-- | dts/Bindings/dma/sifive,fu540-c000-pdma.yaml | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/dts/Bindings/dma/sifive,fu540-c000-pdma.yaml b/dts/Bindings/dma/sifive,fu540-c000-pdma.yaml index d32a71b975..3b22183a1a 100644 --- a/dts/Bindings/dma/sifive,fu540-c000-pdma.yaml +++ b/dts/Bindings/dma/sifive,fu540-c000-pdma.yaml @@ -22,10 +22,22 @@ description: | https://static.dev.sifive.com/FU540-C000-v1.0.pdf +allOf: + - $ref: dma-controller.yaml# + properties: compatible: items: - - const: sifive,fu540-c000-pdma + - enum: + - microchip,mpfs-pdma + - sifive,fu540-c000-pdma + - const: sifive,pdma0 + description: + Should be "sifive,<chip>-pdma" and "sifive,pdma<version>". + Supported compatible strings are - + "sifive,fu540-c000-pdma" for the SiFive PDMA v0 as integrated onto the + SiFive FU540 chip resp and "sifive,pdma0" for the SiFive PDMA v0 IP block + with no chip integration tweaks. reg: maxItems: 1 @@ -34,6 +46,12 @@ properties: minItems: 1 maxItems: 8 + dma-channels: + description: For backwards-compatibility, the default value is 4 + minimum: 1 + maximum: 4 + default: 4 + '#dma-cells': const: 1 @@ -41,16 +59,16 @@ required: - compatible - reg - interrupts - - '#dma-cells' -additionalProperties: false +unevaluatedProperties: false examples: - | - dma@3000000 { - compatible = "sifive,fu540-c000-pdma"; + dma-controller@3000000 { + compatible = "sifive,fu540-c000-pdma", "sifive,pdma0"; reg = <0x3000000 0x8000>; - interrupts = <23 24 25 26 27 28 29 30>; + dma-channels = <4>; + interrupts = <23>, <24>, <25>, <26>, <27>, <28>, <29>, <30>; #dma-cells = <1>; }; |