* [PATCH 1/2] arm64: dts: allwinner: sun50i-a64: add UART DMA channels
@ 2026-03-24 16:19 Chen-Yu Tsai
2026-03-24 16:19 ` [PATCH 2/2] arm64: dts: allwinner: sun50i-h6: " Chen-Yu Tsai
2026-03-25 0:31 ` [PATCH 1/2] arm64: dts: allwinner: sun50i-a64: " Jernej Škrabec
0 siblings, 2 replies; 4+ messages in thread
From: Chen-Yu Tsai @ 2026-03-24 16:19 UTC (permalink / raw)
To: Chen-Yu Tsai, Jernej Skrabec, Samuel Holland
Cc: linux-sunxi, devicetree, linux-arm-kernel, linux-kernel
All the UARTs support DMA and are hooked up to the DMA controller.
Add the DMA channels for the UARTs
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
---
arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 0fecf0abb204..04a26762a19a 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -1000,6 +1000,8 @@ uart0: serial@1c28000 {
reg-io-width = <4>;
clocks = <&ccu CLK_BUS_UART0>;
resets = <&ccu RST_BUS_UART0>;
+ dmas = <&dma 6>, <&dma 6>;
+ dma-names = "tx", "rx";
status = "disabled";
};
@@ -1011,6 +1013,8 @@ uart1: serial@1c28400 {
reg-io-width = <4>;
clocks = <&ccu CLK_BUS_UART1>;
resets = <&ccu RST_BUS_UART1>;
+ dmas = <&dma 7>, <&dma 7>;
+ dma-names = "tx", "rx";
status = "disabled";
};
@@ -1022,6 +1026,8 @@ uart2: serial@1c28800 {
reg-io-width = <4>;
clocks = <&ccu CLK_BUS_UART2>;
resets = <&ccu RST_BUS_UART2>;
+ dmas = <&dma 8>, <&dma 8>;
+ dma-names = "tx", "rx";
status = "disabled";
};
@@ -1033,6 +1039,8 @@ uart3: serial@1c28c00 {
reg-io-width = <4>;
clocks = <&ccu CLK_BUS_UART3>;
resets = <&ccu RST_BUS_UART3>;
+ dmas = <&dma 9>, <&dma 9>;
+ dma-names = "tx", "rx";
status = "disabled";
};
@@ -1044,6 +1052,8 @@ uart4: serial@1c29000 {
reg-io-width = <4>;
clocks = <&ccu CLK_BUS_UART4>;
resets = <&ccu RST_BUS_UART4>;
+ dmas = <&dma 10>, <&dma 10>;
+ dma-names = "tx", "rx";
status = "disabled";
};
--
2.47.3
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 2/2] arm64: dts: allwinner: sun50i-h6: add UART DMA channels
2026-03-24 16:19 [PATCH 1/2] arm64: dts: allwinner: sun50i-a64: add UART DMA channels Chen-Yu Tsai
@ 2026-03-24 16:19 ` Chen-Yu Tsai
2026-03-25 0:31 ` Jernej Škrabec
2026-03-25 0:31 ` [PATCH 1/2] arm64: dts: allwinner: sun50i-a64: " Jernej Škrabec
1 sibling, 1 reply; 4+ messages in thread
From: Chen-Yu Tsai @ 2026-03-24 16:19 UTC (permalink / raw)
To: Chen-Yu Tsai, Jernej Skrabec, Samuel Holland
Cc: linux-sunxi, devicetree, linux-arm-kernel, linux-kernel
All the UARTs support DMA and are hooked up to the DMA controller.
Add the DMA channels for the UARTs
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
---
arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index 73e8604315c5..72ce1a75647b 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -540,6 +540,8 @@ uart0: serial@5000000 {
reg-io-width = <4>;
clocks = <&ccu CLK_BUS_UART0>;
resets = <&ccu RST_BUS_UART0>;
+ dmas = <&dma 14>, <&dma 14>;
+ dma-names = "tx", "rx";
status = "disabled";
};
@@ -551,6 +553,8 @@ uart1: serial@5000400 {
reg-io-width = <4>;
clocks = <&ccu CLK_BUS_UART1>;
resets = <&ccu RST_BUS_UART1>;
+ dmas = <&dma 15>, <&dma 15>;
+ dma-names = "tx", "rx";
status = "disabled";
};
@@ -562,6 +566,8 @@ uart2: serial@5000800 {
reg-io-width = <4>;
clocks = <&ccu CLK_BUS_UART2>;
resets = <&ccu RST_BUS_UART2>;
+ dmas = <&dma 16>, <&dma 16>;
+ dma-names = "tx", "rx";
status = "disabled";
};
@@ -573,6 +579,8 @@ uart3: serial@5000c00 {
reg-io-width = <4>;
clocks = <&ccu CLK_BUS_UART3>;
resets = <&ccu RST_BUS_UART3>;
+ dmas = <&dma 17>, <&dma 17>;
+ dma-names = "tx", "rx";
status = "disabled";
};
--
2.47.3
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH 1/2] arm64: dts: allwinner: sun50i-a64: add UART DMA channels
2026-03-24 16:19 [PATCH 1/2] arm64: dts: allwinner: sun50i-a64: add UART DMA channels Chen-Yu Tsai
2026-03-24 16:19 ` [PATCH 2/2] arm64: dts: allwinner: sun50i-h6: " Chen-Yu Tsai
@ 2026-03-25 0:31 ` Jernej Škrabec
1 sibling, 0 replies; 4+ messages in thread
From: Jernej Škrabec @ 2026-03-25 0:31 UTC (permalink / raw)
To: Chen-Yu Tsai, Jernej Skrabec, Samuel Holland, Chen-Yu Tsai
Cc: linux-sunxi, devicetree, linux-arm-kernel, linux-kernel
Dne torek, 24. marec 2026 ob 17:19:28 Srednjeevropski standardni čas je Chen-Yu Tsai napisal(a):
> All the UARTs support DMA and are hooked up to the DMA controller.
>
> Add the DMA channels for the UARTs
>
> Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Best regards,
Jernej
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2026-03-25 0:32 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2026-03-24 16:19 [PATCH 1/2] arm64: dts: allwinner: sun50i-a64: add UART DMA channels Chen-Yu Tsai
2026-03-24 16:19 ` [PATCH 2/2] arm64: dts: allwinner: sun50i-h6: " Chen-Yu Tsai
2026-03-25 0:31 ` Jernej Škrabec
2026-03-25 0:31 ` [PATCH 1/2] arm64: dts: allwinner: sun50i-a64: " Jernej Škrabec
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