| 问题现象：can0无法读到数据。 自行编译ROM，ip link ls可以看到can0，candump any没有任何数据输出。（使用官方ROM：ROC-RK3588S-PC_Android12_HDMI_230315.img，candump any可以读到数据） SDK修改内容： --- a/kernel-5.10/arch/arm64/boot/dts/rockchip/roc-rk3588s-pc.dts +++ b/kernel-5.10/arch/arm64/boot/dts/rockchip/roc-rk3588s-pc.dts @@ -7,7 +7,7 @@ /dts-v1/; #include "roc-rk3588s-pc.dtsi" -//#include "roc-rk3588s-pc-ext.dtsi" +#include "roc-rk3588s-pc-ext.dtsi" #include "rk3588-roc-pc-cam-8ms1m.dtsi" 根据文档内容对应确认（实际无修改） kernel-5.10/arch/arm64/boot/dts/rockchip/rk3588s.dtsi can0: can@fea50000 { compatible = "rockchip,can-2.0"; reg = <0x0 0xfea50000 0x0 0x1000>; interrupts = <GIC_SPI 341 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru CLK_CAN0>, <&cru PCLK_CAN0>; clock-names = "baudclk", "apb_pclk"; resets = <&cru SRST_CAN0>, <&cru SRST_P_CAN0>; reset-names = "can", "can-apb"; pinctrl-names = "default"; pinctrl-0 = <&can0m0_pins>; tx-fifo-depth = <1>; rx-fifo-depth = <6>; status = "disabled"; }; can1: can@fea60000 { compatible = "rockchip,can-2.0"; reg = <0x0 0xfea60000 0x0 0x1000>; interrupts = <GIC_SPI 342 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru CLK_CAN1>, <&cru PCLK_CAN1>; clock-names = "baudclk", "apb_pclk"; resets = <&cru SRST_CAN1>, <&cru SRST_P_CAN1>; reset-names = "can", "can-apb"; pinctrl-names = "default"; pinctrl-0 = <&can1m0_pins>; tx-fifo-depth = <1>; rx-fifo-depth = <6>; status = "disabled"; }; can2: can@fea70000 { compatible = "rockchip,can-2.0"; reg = <0x0 0xfea70000 0x0 0x1000>; interrupts = <GIC_SPI 343 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru CLK_CAN2>, <&cru PCLK_CAN2>; clock-names = "baudclk", "apb_pclk"; resets = <&cru SRST_CAN2>, <&cru SRST_P_CAN2>; reset-names = "can", "can-apb"; pinctrl-names = "default"; pinctrl-0 = <&can2m0_pins>; tx-fifo-depth = <1>; rx-fifo-depth = <6>; status = "disabled"; }; arch/arm64/boot/dts/rockchip/roc-rk3588s-pc-ext.dtsi&can2 { status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&can2m0_pins>;}; |
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