@@ -478,6 +478,8 @@
compatible = "arm,pl011", "arm,primecell";
reg = <0x0 0xfdf00000 0x0 0x1000>;
interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
+ dma-names = "rx", "tx";
+ dmas = <&dma0 2 &dma0 3>;
clocks = <&crg_ctrl HI3660_CLK_GATE_UART1>,
<&crg_ctrl HI3660_CLK_GATE_UART1>;
clock-names = "uartclk", "apb_pclk";
@@ -490,6 +492,8 @@
compatible = "arm,pl011", "arm,primecell";
reg = <0x0 0xfdf03000 0x0 0x1000>;
interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
+ dma-names = "rx", "tx";
+ dmas = <&dma0 4 &dma0 5>;
clocks = <&crg_ctrl HI3660_CLK_GATE_UART2>,
<&crg_ctrl HI3660_PCLK>;
clock-names = "uartclk", "apb_pclk";
@@ -514,6 +518,8 @@
compatible = "arm,pl011", "arm,primecell";
reg = <0x0 0xfdf01000 0x0 0x1000>;
interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
+ dma-names = "rx", "tx";
+ dmas = <&dma0 6 &dma0 7>;
clocks = <&crg_ctrl HI3660_CLK_GATE_UART4>,
<&crg_ctrl HI3660_CLK_GATE_UART4>;
clock-names = "uartclk", "apb_pclk";
@@ -526,6 +532,8 @@
compatible = "arm,pl011", "arm,primecell";
reg = <0x0 0xfdf05000 0x0 0x1000>;
interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+ dma-names = "rx", "tx";
+ dmas = <&dma0 8 &dma0 9>;
clocks = <&crg_ctrl HI3660_CLK_GATE_UART5>,
<&crg_ctrl HI3660_CLK_GATE_UART5>;
clock-names = "uartclk", "apb_pclk";
Try to add DMA support to the uart nodes following the assignments made in the dts from the victoria vendor kernel here: https://consumer.huawei.com/en/opensource/detail/?siteCode=worldwide&keywords=p10&fileType=openSourceSoftware&pageSize=10&curPage=1 Cc: Tanglei Han <hantanglei@huawei.com> Cc: Zhuangluan Su <suzhuangluan@hisilicon.com> Cc: Ryan Grachek <ryan@edited.us> Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Cc: Wei Xu <xuwei5@hisilicon.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: devicetree@vger.kernel.org Signed-off-by: John Stultz <john.stultz@linaro.org> --- v3: * Remove dma enablment on uart0 which would use reserved channel 0 --- arch/arm64/boot/dts/hisilicon/hi3660.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+)