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Groups > linux.kernel > #1738606
| From | Stefan Brüns <stefan.bruens@rwth-aachen.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v3 09/10] arm64: allwinner: a64: Add device node for DMA controller |
| Date | 2017-09-25 02:10 +0200 |
| Message-ID | <utp8e-731-37@gated-at.bofh.it> (permalink) |
| References | <utp8d-731-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
The A64 SoC has a DMA controller that supports 8 DMA channels
to and from various peripherals. The last used DRQ port is 27.
Add a device node for it.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
---
Changes in v3:
- Drop leading 0 from dma controller unit name
Changes in v2: None
arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index e9a9d7fb01c8..cbffefce0e71 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -136,6 +136,17 @@
reg = <0x01c00000 0x1000>;
};
+ dma: dma-controller@1c02000 {
+ compatible = "allwinner,sun50i-a64-dma";
+ reg = <0x01c02000 0x1000>;
+ interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_DMA>;
+ dma-channels = <8>;
+ dma-requests = <27>;
+ resets = <&ccu RST_BUS_DMA>;
+ #dma-cells = <1>;
+ };
+
mmc0: mmc@1c0f000 {
compatible = "allwinner,sun50i-a64-mmc";
reg = <0x01c0f000 0x1000>;
--
2.14.1
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[PATCH v3 09/10] arm64: allwinner: a64: Add device node for DMA controller Stefan Brüns <stefan.bruens@rwth-aachen.de> - 2017-09-25 02:10 +0200
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