From 3a7d56b3cdc90cbc1d854e0dbde4f2de83bbe6d7 Mon Sep 17 00:00:00 2001 From: Joakim Zhang Date: Mon, 2 Nov 2020 10:16:34 +0800 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 Signed-off-by: Shawn Guo --- 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 908b92b..b10dce8 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 4793122..ecccfbb 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -552,6 +552,36 @@ status = "disabled"; }; + flexcan1: can@308c0000 { + compatible = "fsl,imx8mp-flexcan", "fsl,imx6q-flexcan"; + reg = <0x308c0000 0x10000>; + interrupts = ; + 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@308d0000 { + compatible = "fsl,imx8mp-flexcan", "fsl,imx6q-flexcan"; + reg = <0x308d0000 0x10000>; + interrupts = ; + 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@30900000 { compatible = "fsl,sec-v4.0"; #address-cells = <1>; -- 2.7.4