How to set to spi slave mode

[ShaneCCC]

For 1 and 2.
Configure as below. Add tegra124-spi-slave to the device tree.

SPI1 not work on Xavier

@ShaneCCC Use two xaviers, one for master and the other for slave This is the master’s dts. spi0: spi@3210000 { compatible = “nvidia,tegra186-spi”; reg = <0x0 0x03210000 0x0 0x10000>; interrupts = <0 36 0x04>; #address-cells = <1>; #size-cells = <0>; iommus = <&smmu TEGRA_SID_GPCDMA_0>; dma-coherent; dmas = <&gpcdma 15>, <&gpcdma 15>; dma-names = “rx”, “tx”; nvidia,dma-request-selector = <&gpcdma 15>; spi-max-frequency = <65000000>; nvidia,clk-parents = “pll_p”, “clk_m”; clocks =…

3. Should be 1

4. open ssh terminal and start the spi slave first with following command
   "./spidev_test -D /dev/spidev0.0 -s 150000 -n100 -g30 -p4 -z
   In another terminal start the spi master with following command
   “./spidev_test -D /dev/spidev3.1 -s 150000 -n100 -g30 -p4 -z”