您好：
TDA4VM,我的用的是main_can0，我的设备树配置如下：
在k3-j721e-main.dtsi
main_mcan0: can@2701000 {
compatible = "bosch,m_can";
reg = <0x00 0x02701000 0x00 0x200>,
<0x00 0x02708000 0x00 0x8000>;
reg-names = "m_can", "message_ram";
power-domains = <&k3_pds 156 TI_SCI_PD_EXCLUSIVE>;
clocks = <&k3_clks 156 0>, <&k3_clks 156 1>;
clock-names = "hclk", "cclk";
interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "int0", "int1";
bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
};
在k3-j721e-sk.dts里
main_mcan0_pins_default: main-mcan0-pins-default {
pinctrl-single,pins = <
J721E_IOPAD(0x208, PIN_INPUT, 0) /* (W5) MCAN0_RX */
J721E_IOPAD(0x20c, PIN_OUTPUT, 0) /* (W6) MCAN0_TX */
>;
};
main_mcan0_gpio_pins_default: main-mcan0-gpio-pins-default {
pinctrl-single,pins = <
J721E_IOPAD(0x108, PIN_INPUT, 7) /* (AD27) PRG0_PRU1_GPO2.GPIO0_65 */
>;
};
transceiver2: can-phy1 {
compatible = "ti,tcan1042";
#phy-cells = <0>;
max-bitrate = <5000000>;
pinctrl-names = "default";
pinctrl-0 = <&main_mcan0_gpio_pins_default>;
standby-gpios = <&main_gpio0 65 GPIO_ACTIVE_HIGH>;
};
但是系统启动之后，通过命令 dmesg | grep can
[ 32.432940] m_can_platform 40528000.can: m_can device registered (irq=19, version=32)
发现只有MCU_CAN0有注册成功，其他main_can都没有注册成功
麻烦帮忙看一下是否其他配置有问题导致main_can没有注册成功？
