We had a problem using the Nano SPI?

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

We use Jeston Nano module + self-developed carrier board(the device tree used is: TEGRA210-P3448-0002-P3449-0000-B00.dTB)
Jetpack version: 4.4.1
The problems is: the SPI Can not be used normally, SPI to serial port chip (WK2204) and SPI to CAN port chip (MCP2518FD) driver Can not load normally

  1. With the existing SPI configuration,SPI cannot be used normally without modification. Is there any guidance or configuration for the normal use of SPI on the Nano module (TEGR210-P3448-0002-P3449-0000-B00)?

  2. Do you have instructions or instructions for driving SPI to serial port chip (WK2204) and SPI to CAN port chip (MCP2518FD) on the Nano module?

  3. If the self-developed PCBA(TEGRA210-P3448-0002-P3449-0000-B00) is configured with Nano module, using “/opt/nvidia/ Jetson-io/Jetson-io. Py” to try to configure SPI will flash out.
    Is it that jetson-io.py does not support self-developed board(TEGR210-P3448-0002-P3449-0000-B00) or that jetson-io.py cannot be directly used in this way?
    please help,thanks

3

Try to add below pin configure for SPI pin

		header-40pin-pinmux {
			phandle = <0x136>;
			linux,phandle = <0x136>;

			pin37 {
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x1>;
				nvidia,pins = "spi2_mosi_pb4";
				nvidia,function = "spi2";
			};

			pin28 {
				nvidia,io-high-voltage = <0x1>;
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x0>;
				nvidia,pins = "gen1_i2c_scl_pj1";
				nvidia,function = "i2c1";
			};

			pin27 {
				nvidia,io-high-voltage = <0x1>;
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x0>;
				nvidia,pins = "gen1_i2c_sda_pj0";
				nvidia,function = "i2c1";
			};

			pin26 {
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x2>;
				nvidia,pins = "spi1_cs1_pc4";
				nvidia,function = "spi1";
			};

			pin24 {
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x2>;
				nvidia,pins = "spi1_cs0_pc3";
				nvidia,function = "spi1";
			};

			pin23 {
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x1>;
				nvidia,pins = "spi1_sck_pc2";
				nvidia,function = "spi1";
			};

			pin22 {
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x1>;
				nvidia,pins = "spi2_miso_pb5";
				nvidia,function = "spi2";
			};

			pin21 {
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x1>;
				nvidia,pins = "spi1_miso_pc1";
				nvidia,function = "spi1";
			};

			pin19 {
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x1>;
				nvidia,pins = "spi1_mosi_pc0";
				nvidia,function = "spi1";
			};

			pin18 {
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x2>;
				nvidia,pins = "spi2_cs0_pb7";
				nvidia,function = "spi2";
			};

			pin16 {
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x2>;
				nvidia,pins = "spi2_cs1_pdd0";
				nvidia,function = "spi2";
			};

			pin13 {
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x1>;
				nvidia,pins = "spi2_sck_pb6";
				nvidia,function = "spi2";
			};

			pin10 {
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x1>;
				nvidia,pull = <0x2>;
				nvidia,pins = "uart2_rx_pg1";
				nvidia,function = "uartb";
			};

			pin8 {
				nvidia,enable-input = <0x0>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x0>;
				nvidia,pins = "uart2_tx_pg0";
				nvidia,function = "uartb";
			};

			pin5 {
				nvidia,io-high-voltage = <0x1>;
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x0>;
				nvidia,pins = "gen2_i2c_scl_pj2";
				nvidia,function = "i2c2";
			};

			pin3 {
				nvidia,io-high-voltage = <0x1>;
				nvidia,enable-input = <0x1>;
				nvidia,tristate = <0x0>;
				nvidia,pull = <0x0>;
				nvidia,pins = "gen2_i2c_sda_pj3";
				nvidia,function = "i2c2";
			};
		};