Support for cifX/M.2 (netX90) card

A netX90 based device with a PCIe<->SPI Bridge is available. Adopt driver to support it.

To use default spidev plugin following kernel mode drivers need to be created:

• spidev driver for ASIX99100 chip (3 chip-select lines)
• gpio driver with edge/level interrupt support for ASIX99100 chip (used for SPM interrupts)

ATTENTION: SPI requireS PCI IOBAR support which is not be available on all platforms (e.g. netX4000 ARM).

PCI ID for cifX M.2 card:

device_id = 0x0090
subsystem_id = 0x0001 (SPI I/F)

subsystem_id = 0x0002 (GPIO I/F)