SPI can't work in slave mode on xavier?

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
1

in file Jetson_AGX_Devkit_Pinmux_Configuration_Template.xlsm
about pin A56 (SPI1_MISO) Customer Usage list:

unused_SPI1_MISO
GPIO3_PZ.04
SPI1_DIN

SPI1_DIN means it only works in Master Input mode? and how can i set it work in slave mode?
the same question about SPI1_MOSI, and SPI2, SPI3.

3

There’s no different for the master and slave mode.
Have a check below topic to check the SPI configure can verify it working first.

For the slave mode just need to configure the device tree to add below property.

compatible = “nvidia,tegra210-spi-slave”;

4

you mean SPI whether in master or slave mode, pinmux selection always like this:

SPI1_MISO —> SPI1_DIN
SPI1_MOSI —> SPI1_DOUT
direction —> Bidirectional

that’s right?

5

Should be like this.

image