Re: [RESEND PATCH 06/19] arm64: allwinner: a100: Add device node for DMA controller
From: André Przywara <andre.przywara@arm.com>
Date: 2020-11-28 21:56:12
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On 10/11/2020 06:29, Frank Lee wrote:
quoted hunk ↗ jump to hunk
From: Yangtao Li <redacted> The A100 SoC has a DMA controller that supports 8 DMA channels to and from various peripherals. Add a device node for it. Signed-off-by: Yangtao Li <redacted> --- arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+)diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi index cc321c04f121..c34ed8045363 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi@@ -101,6 +101,18 @@ ccu: clock@3001000 { #reset-cells = <1>; }; + dma: dma-controller@3002000 { + compatible = "allwinner,sun50i-a100-dma";
So at it appears to work with the exact same settings in the driver as the H6, we should have that as a compatible fallback: compatible = "allwinner,sun50i-a100-dma", "allwinner,sun50i-h6-dma"; Cheers, Andre
+ reg = <0x03002000 0x1000>;
+ interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_DMA>, <&ccu CLK_MBUS_DMA>;
+ clock-names = "bus", "mbus";
+ dma-channels = <8>;
+ dma-requests = <51>;
+ resets = <&ccu RST_BUS_DMA>;
+ #dma-cells = <1>;
+ };
+
gic: interrupt-controller@3021000 {
compatible = "arm,gic-400";
reg = <0x03021000 0x1000>, <0x03022000 0x2000>,_______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel