Shuanglin Wang wrote: > > Hi all, > > I'm working on porting Linux to a third-part board. I don't know where to start. > Can anyone give me some tips? > By the way, the board doesn't have PCI bus, Interrupt controller, and RTC. Do > you think it is possible to port Linux to it? And how difficult will it be? > > A lot of thanks, > Porting Linux/MIPS generally involves three tasks: 1. CPU support If your CPU is already supported, then your task is as easy as include the CONFIG_CPU_XXXX in your config file. 2. board support This involves several subtasks: a) hook your board/machines to the system. Check include/asm/bootinfo.h, arch/mips/setup.c. b) prom_init(). c) board setup code (xxx_setup()): fix hardware, set Linux variables, etc d) interrupt dispatching, time service e) others Look under various arch/mips subdirectories. 3) driver code Serial, ether, etc. Good luck. Jun
