spi-imx8lpspi

Runs on:

QNX OS

Options:

These are the options available for this driver.

-c config_file

Path to the SPI configuration file (default: /etc/system/config/spi/spi.conf)

Note: SPI config file template can be found at "lib/io-spi/config_files/spi-template.conf"

-v

Increase verbosity. This will override the "verbose" value in the config file

Driver-specific options: (To be set in the config file by parameter 'bs' under section 'bus'.)

• dma Enable DMA transfer (default: non-DMA)
• dbt=num Delay between transfers. In terms of half SPI shift clock. (default: 0)
• pcssck=num Delay from the PCS assertion to the first SCK edge. In terms of half SPI shift clock. (default: 0)
• sample=1|0 Specifies the SCK clock edge on which LSPI, when in Master mode, samples input data - 0=SCK edge, 1=Delayed SCK edge. (default: 0)
• sckpcs=num Delay from the last SCK edge to the PCS negation. In terms of half SPI shift clock. (default: 0)
• pincfg=num Pin configuration. (default: 0) 0 - SDI is used for input data and SDO for output data. 1 - SDI is used for both input and output data. 2 - SDO is used for both input and output data. 3 - SDO is used for input data and SDI for output data
• smmu=on|off|1|0 Turn on/off (1/0) the use of local IO MMU protection services. (default: off) Note: This option should only be used with DMA option.

Description:

Driver for NXP i.MX8 Low Power SPI controllers

Example:

spi-imx8lpspi -c /etc/custom/spi.conf