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Message-Id: <1603693376-17206-1-git-send-email-qiangqing.zhang@nxp.com>
Date: Mon, 26 Oct 2020 14:22:56 +0800
From: Joakim Zhang <qiangqing.zhang@....com>
To: shawnguo@...nel.org, s.hauer@...gutronix.de, festevam@...il.com
Cc: linux-imx@....com, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
mkl@...gutronix.de, Joakim Zhang <qiangqing.zhang@....com>
Subject: [PATCH] arm64: dts: imx8mp-evk: add CAN support
Add CAN device node and pinctrl on i.MX8MP evk board.
Signed-off-by: Joakim Zhang <qiangqing.zhang@....com>
---
arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 62 ++++++++++++++++++++
arch/arm64/boot/dts/freescale/imx8mp.dtsi | 30 ++++++++++
2 files changed, 92 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index ad66f1286d95..85aaed7dc4bc 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -33,6 +33,28 @@
<0x1 0x00000000 0 0xc0000000>;
};
+ reg_can1_stby: regulator-can1-stby {
+ compatible = "regulator-fixed";
+ regulator-name = "can1-stby";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan1_reg>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio5 5 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ reg_can2_stby: regulator-can2-stby {
+ compatible = "regulator-fixed";
+ regulator-name = "can2-stby";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan2_reg>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio4 27 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
reg_usdhc2_vmmc: regulator-usdhc2 {
compatible = "regulator-fixed";
pinctrl-names = "default";
@@ -45,6 +67,20 @@
};
};
+&flexcan1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan1>;
+ xceiver-supply = <®_can1_stby>;
+ status = "okay";
+};
+
+&flexcan2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan2>;
+ xceiver-supply = <®_can2_stby>;
+ status = "disabled";/* can2 pin conflict with pdm */
+};
+
&fec {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_fec>;
@@ -144,6 +180,32 @@
>;
};
+ pinctrl_flexcan1: flexcan1grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SPDIF_RX__CAN1_RX 0x154
+ MX8MP_IOMUXC_SPDIF_TX__CAN1_TX 0x154
+ >;
+ };
+
+ pinctrl_flexcan2: flexcan2grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI5_MCLK__CAN2_RX 0x154
+ MX8MP_IOMUXC_SAI5_RXD3__CAN2_TX 0x154
+ >;
+ };
+
+ pinctrl_flexcan1_reg: flexcan1reggrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SPDIF_EXT_CLK__GPIO5_IO05 0x154 /* CAN1_STBY */
+ >;
+ };
+
+ pinctrl_flexcan2_reg: flexcan2reggrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI2_MCLK__GPIO4_IO27 0x154 /* CAN2_STBY */
+ >;
+ };
+
pinctrl_gpio_led: gpioledgrp {
fsl,pins = <
MX8MP_IOMUXC_NAND_READY_B__GPIO3_IO16 0x19
diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 6038f66aefc1..cc123a5e3f7e 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -545,6 +545,36 @@
status = "disabled";
};
+ flexcan1: can@...c0000 {
+ compatible = "fsl,imx8mp-flexcan", "fsl,imx6q-flexcan";
+ reg = <0x308c0000 0x10000>;
+ interrupts = <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk IMX8MP_CLK_IPG_ROOT>,
+ <&clk IMX8MP_CLK_CAN1_ROOT>;
+ clock-names = "ipg", "per";
+ assigned-clocks = <&clk IMX8MP_CLK_CAN1>;
+ assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_40M>;
+ assigned-clock-rates = <40000000>;
+ fsl,clk-source= /bits/ 8 <0>;
+ fsl,stop-mode = <&gpr 0x10 4>;
+ status = "disabled";
+ };
+
+ flexcan2: can@...d0000 {
+ compatible = "fsl,imx8mp-flexcan", "fsl,imx6q-flexcan";
+ reg = <0x308d0000 0x10000>;
+ interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk IMX8MP_CLK_IPG_ROOT>,
+ <&clk IMX8MP_CLK_CAN2_ROOT>;
+ clock-names = "ipg", "per";
+ assigned-clocks = <&clk IMX8MP_CLK_CAN2>;
+ assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_40M>;
+ assigned-clock-rates = <40000000>;
+ fsl,clk-source= /bits/ 8 <0>;
+ fsl,stop-mode = <&gpr 0x10 5>;
+ status = "disabled";
+ };
+
crypto: crypto@...00000 {
compatible = "fsl,sec-v4.0";
#address-cells = <1>;
--
2.17.1
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