How to use spi bus to control spi flash memory in Jetson AGX Xavier for a camera module

[ShaneCCC]

Have a reference to below SPI relative topic for Xavier.

Thanks

NVIDIA Jetson AGX Xavier GPIO Header Pinout - JetsonHacks

How to use the spi on xavier

Hi ShaneCCC I have test it. Xavier1 SPI (/dev/spi0.0) act as master Xavier2 SPI (/dev/spi0.0) act as slave connect as below: Xavier1 Xavier2 SPI1_MOSI----------- SPI1_MOSI SPI1_MISO----------- SPI1_MISO SPI1_SCK ----------- SPI1_SCK SPI1_CS0 ----------- SPI1_CS0 MASTER config: sudo ./devmem2 0x0243d010 w 0x00000400 sudo ./devmem2 0x0243d020 w 0x00000450 sudo ./devmem2 0x0243d040 w 0x00000400 sudo ./devmem2 0x0243d050 w 0x00000400 sudo ./devmem2 0x024…

SPI1 not work on Xavier

Please modify the pinmux for spi1 like spi2 does. file name: tegra19x-mb1-pinmux-p2888-0000-a04-p2822-0000-b01.cfg SPI1 pinmux.0x0243d040 = 0x00000055; # spi1_sck_pz3: rsvd1, pull-down, tristate-enable, input-enable, lpdr-disable pinmux.0x0243d020 = 0x00000055; # spi1_miso_pz4: rsvd1, pull-down, tristate-enable, input-enable, lpdr-disable pinmux.0x0243d058 = 0x00000055; # spi1_mosi_pz5: rsvd1, pull-down, tristate-enable, input-enable, lpdr-disable pinmux.0x0243d010 = 0x00000059; # spi1_cs0_pz6:…