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arm64: dts: imx93-9x9-qsb: add CAN support overlay file 

CAN1 and Micfil share pins on imx93-9x9-qsb board, use TMUX1574RSVR
to control the connection: put sel to high, select CAN1, put sel to
low, select Micfil. In default, sel keep low.

To support CAN1, need to put the sel to high. Besides, CAN1 use phy
TJA1057GT/3.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
master
Haibo Chen 2025-12-02 14:04:33 +08:00 committed by Shawn Guo
parent b49f2dece0
commit 21335bc94a
2 changed files with 65 additions and 0 deletions
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2
arch/arm64/boot/dts/freescale/Makefile
View File

@ -382,7 +382,9 @@ dtb-$(CONFIG_ARCH_MXC) += imx91-phyboard-segin.dtb
dtb-$(CONFIG_ARCH_MXC) += imx91-tqma9131-mba91xxca.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-9x9-qsb.dtb
imx93-9x9-qsb-can1-dtbs += imx93-9x9-qsb.dtb imx93-9x9-qsb-can1.dtbo
imx93-9x9-qsb-i3c-dtbs += imx93-9x9-qsb.dtb imx93-9x9-qsb-i3c.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx93-9x9-qsb-can1.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-9x9-qsb-i3c.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-evk.dtb

63
arch/arm64/boot/dts/freescale/imx93-9x9-qsb-can1.dtso Normal file
View File

@ -0,0 +1,63 @@
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright 2025 NXP
*/
#include <dt-bindings/gpio/gpio.h>
#include "imx93-pinfunc.h"
/dts-v1/;
/plugin/;
&{/} {
flexcan_phy: can-phy {
compatible = "nxp,tja1057";
#phy-cells = <0>;
max-bitrate = <5000000>;
silent-gpios = <&pcal6524 23 GPIO_ACTIVE_HIGH>;
};
};
&flexcan1 {
phys = <&flexcan_phy>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flexcan1>;
status = "okay";
};
&iomuxc {
pinctrl_flexcan1: flexcan1grp {
fsl,pins = <
MX93_PAD_PDM_CLK__CAN1_TX 0x139e
MX93_PAD_PDM_BIT_STREAM0__CAN1_RX 0x139e
>;
};
};
/* micfi1 use the A port, conflict with can1 */
&micfil {
status = "disabled";
};
&pcal6524 {
/*
* mic-can-sel-hog have property 'output-low', dt overlay don't
* support /delete-property/. Both 'output-low' and 'output-high'
* will be exist under hog nodes if overlay file set 'output-high'.
* Workaround is disable this hog and create new hog with
* 'output-high'.
*/
mic-can-sel-hog {
status = "disabled";
};
/*
* Config the MIC/CAN_SEL to high, chose B
* port, connect to CAN.
*/
mic-can-high-sel-hog {
gpio-hog;
gpios = <0x11 0x00>;
output-high;
};
};