Loongson 3A low-end IO
leioc* at mainbus0
com* at leioc?
leioc driver supports the low-end IO
controller present in Loongson 3A CPU packages.
The controller provides several IO interfaces:
- a conventional pci(4) bus
- a Low Pin Count (LPC) bus
- a Serial Peripheral Interface (SPI) bus
- 16 gpio(4) pins
- two com(4) interfaces
Currently, only the com(4) interfaces are supported by the
leioc driver first appeared in