linux-kernel - [PATCH] arm64: dts: imx8qxp: Add lpuart1/lpuart2/lpuart3 nodes

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Date:   Sat, 30 Mar 2019 17:07:44 +0000
From:   Daniel Baluta <daniel.baluta@....com>
To:     "shawnguo@...nel.org" <shawnguo@...nel.org>
CC:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        Aisheng Dong <aisheng.dong@....com>,
        Peng Fan <peng.fan@....com>, Anson Huang <anson.huang@....com>,
        Daniel Baluta <daniel.baluta@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "S.j. Wang" <shengjiu.wang@....com>, Teo Hall <teo.hall@....com>
Subject: [PATCH] arm64: dts: imx8qxp: Add lpuart1/lpuart2/lpuart3 nodes

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.hall@....com>
Signed-off-by: Daniel Baluta <daniel.baluta@....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@...70000 {
+			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@...80000 {
+			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@...90000 {
+			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@...00000 {
 			compatible = "fsl,imx8qxp-lpi2c", "fsl,imx7ulp-lpi2c";
 			reg = <0x5a800000 0x4000>;
-- 
2.17.1