* [PATCH 2/2] arm64: dts: mediatek: mt8516: add support for APDMA
2020-10-15 12:33 [PATCH 1/2] dt-bindings: dma: mtk-apdma: add bindings for MT8516 SOC Fabien Parent
@ 2020-10-15 12:33 ` Fabien Parent
2020-10-19 10:24 ` [PATCH 1/2] dt-bindings: dma: mtk-apdma: add bindings for MT8516 SOC Matthias Brugger
2020-10-19 21:16 ` Rob Herring
2 siblings, 0 replies; 5+ messages in thread
From: Fabien Parent @ 2020-10-15 12:33 UTC (permalink / raw)
To: linux-kernel, devicetree, linux-mediatek, linux-arm-kernel, dmaengine
Cc: matthias.bgg, robh+dt, vkoul, sean.wang, Fabien Parent
Add support the APDMA IP on MT8516. APDMA is a DMA controller
for UARTs.
Signed-off-by: Fabien Parent <fparent@baylibre.com>
---
arch/arm64/boot/dts/mediatek/mt8516.dtsi | 27 ++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8516.dtsi b/arch/arm64/boot/dts/mediatek/mt8516.dtsi
index eca7969e15ab..a017664f8eed 100644
--- a/arch/arm64/boot/dts/mediatek/mt8516.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8516.dtsi
@@ -269,6 +269,27 @@ gic: interrupt-controller@10310000 {
(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
};
+ apdma: dma-controller@11000480 {
+ compatible = "mediatek,mt8516-uart-dma",
+ "mediatek,mt6577-uart-dma";
+ reg = <0 0x11000480 0 0x80>,
+ <0 0x11000500 0 0x80>,
+ <0 0x11000580 0 0x80>,
+ <0 0x11000600 0 0x80>,
+ <0 0x11000980 0 0x80>,
+ <0 0x11000a00 0 0x80>;
+ interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 97 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 98 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 99 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 100 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 101 IRQ_TYPE_LEVEL_LOW>;
+ dma-requests = <6>;
+ clocks = <&topckgen CLK_TOP_APDMA>;
+ clock-names = "apdma";
+ #dma-cells = <1>;
+ };
+
uart0: serial@11005000 {
compatible = "mediatek,mt8516-uart",
"mediatek,mt6577-uart";
@@ -277,6 +298,8 @@ uart0: serial@11005000 {
clocks = <&topckgen CLK_TOP_UART0_SEL>,
<&topckgen CLK_TOP_UART0>;
clock-names = "baud", "bus";
+ dmas = <&apdma 0
+ &apdma 1>;
status = "disabled";
};
@@ -288,6 +311,8 @@ uart1: serial@11006000 {
clocks = <&topckgen CLK_TOP_UART1_SEL>,
<&topckgen CLK_TOP_UART1>;
clock-names = "baud", "bus";
+ dmas = <&apdma 2
+ &apdma 3>;
status = "disabled";
};
@@ -299,6 +324,8 @@ uart2: serial@11007000 {
clocks = <&topckgen CLK_TOP_UART2_SEL>,
<&topckgen CLK_TOP_UART2>;
clock-names = "baud", "bus";
+ dmas = <&apdma 4
+ &apdma 5>;
status = "disabled";
};
--
2.28.0
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH 1/2] dt-bindings: dma: mtk-apdma: add bindings for MT8516 SOC
2020-10-15 12:33 [PATCH 1/2] dt-bindings: dma: mtk-apdma: add bindings for MT8516 SOC Fabien Parent
2020-10-15 12:33 ` [PATCH 2/2] arm64: dts: mediatek: mt8516: add support for APDMA Fabien Parent
@ 2020-10-19 10:24 ` Matthias Brugger
2020-10-19 21:16 ` Rob Herring
2 siblings, 0 replies; 5+ messages in thread
From: Matthias Brugger @ 2020-10-19 10:24 UTC (permalink / raw)
To: Fabien Parent, linux-kernel, devicetree, linux-mediatek,
linux-arm-kernel, dmaengine
Cc: robh+dt, vkoul, sean.wang
On 15/10/2020 14:33, Fabien Parent wrote:
> Add bindings to APDMA for MT8516 SoC. MT8516 is compatible with MT6577.
>
> Signed-off-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
> ---
> Documentation/devicetree/bindings/dma/mtk-uart-apdma.txt | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/Documentation/devicetree/bindings/dma/mtk-uart-apdma.txt b/Documentation/devicetree/bindings/dma/mtk-uart-apdma.txt
> index 2117db0ce4f2..fef9c1eeb264 100644
> --- a/Documentation/devicetree/bindings/dma/mtk-uart-apdma.txt
> +++ b/Documentation/devicetree/bindings/dma/mtk-uart-apdma.txt
> @@ -4,6 +4,7 @@ Required properties:
> - compatible should contain:
> * "mediatek,mt2712-uart-dma" for MT2712 compatible APDMA
> * "mediatek,mt6577-uart-dma" for MT6577 and all of the above
> + * "mediatek,mt8516-uart-dma", "mediatek,mt6577" for MT8516 SoC
>
> - reg: The base address of the APDMA register bank.
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread