lpuart nodes are part of the ADMA subsystem. See Audio DMA memory map in iMX8 QXP RM [1]
This patch is based on the dtsi file initially submitted by Teo Hall in i.MX NXP internal tree. [1] https://www.nxp.com/docs/en/reference-manual/IMX8DQXPRM.pdf Signed-off-by: Teo Hall <teo.h...@nxp.com> Signed-off-by: Daniel Baluta <daniel.bal...@nxp.com> --- arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi index 0cb939861a60..1adfe15c2ea5 100644 --- a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi @@ -193,6 +193,39 @@ status = "disabled"; }; + adma_lpuart1: serial@5a070000 { + compatible = "fsl,imx8qxp-lpuart", "fsl,imx7ulp-lpuart"; + reg = <0x5a070000 0x1000>; + interrupts = <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>; + interrupt-parent = <&gic>; + clocks = <&adma_lpcg IMX_ADMA_LPCG_UART1_BAUD_CLK>; + clock-names = "ipg"; + power-domains = <&pd IMX_SC_R_UART_1>; + status = "disabled"; + }; + + adma_lpuart2: serial@5a080000 { + compatible = "fsl,imx8qxp-lpuart", "fsl,imx7ulp-lpuart"; + reg = <0x5a080000 0x1000>; + interrupts = <GIC_SPI 227 IRQ_TYPE_LEVEL_HIGH>; + interrupt-parent = <&gic>; + clocks = <&adma_lpcg IMX_ADMA_LPCG_UART2_BAUD_CLK>; + clock-names = "ipg"; + power-domains = <&pd IMX_SC_R_UART_2>; + status = "disabled"; + } + + adma_lpuart3: serial@5a090000 { + compatible = "fsl,imx8qxp-lpuart", "fsl,imx7ulp-lpuart"; + reg = <0x5a090000 0x1000>; + interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_HIGH>; + interrupt-parent = <&gic>; + clocks = <&adma_lpcg IMX_ADMA_LPCG_UART3_BAUD_CLK>; + clock-names = "ipg"; + power-domains = <&pd IMX_SC_R_UART_3>; + status = "disabled"; + } + adma_i2c0: i2c@5a800000 { compatible = "fsl,imx8qxp-lpi2c", "fsl,imx7ulp-lpi2c"; reg = <0x5a800000 0x4000>; -- 2.17.1
