The 1st bug is the same as what reported here: https://devtalk.nvidia.com/default/topic/1002582/chip-select-1-stuck-low-on-spi1/ . This problem might only occur when 2 CSs are used. In my case, they are SPI1_CS0 (pin 18) and SPI1_CS1 (pin 16). One SPI slave keeps CS low prevents the other slave from…

Hi Could you try below patch to verify it. diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c index d6e50c9..cc6c820 100644 --- a/drivers/spi/spi-tegra114.c +++ b/drivers/spi/spi-tegra114.c @@ -1455,10 +1455,8 @@ static int tegra_spi_transfer_one_message(struct spi_master *master…

Two SPI bugs on Jetson Nano

Autonomous Machines Jetson & Embedded Systems Jetson Nano

ShaneCCC September 23, 2020, 4:07am 14

@turmary
Could you help to verify those changes from below link for SPI functionality.