Enable Billionton PCMCIA Bluetooth in MPC860 system (again)

Lo Chun Chung lcsquare2 at yahoo.com.hk
Thu Jan 26 03:56:08 EST 2006


I also found a such message here: http://ozlabs.org/pipermail/linuxppc-embedded/2000-May/001402.html
   
  it says:
   
  "... The 8250/16550 driver (serial.c) probes at init-time which will cause
problems. .... "
   
  I want to know are there anyone fixed this problem? 
  
Thanks all.
   
  Best regards,
  Lo Chun Chung
  
Lo Chun Chung <lcsquare2 at yahoo.com.hk> 說:
    Dear all,

  Hi again, I have asked a same question here before (http://ozlabs.org/pipermail/linuxppc-embedded/2006-January/021617.html), now I have some discoveries ... but I still do not know how to solve.
   
  (My system is a MPC860 Processor Card, plus a custom made PCB to provide a PCMCIA interface, now the latest progress is I can use PCMCIA WLAN cards in this system without any problem. But my main target is use a PCMCIA Bluetooth card ... )
   
  I have noticed when I load up the "serial.o", function "rs_init" must be executed, inside this function call, a function "autoconfig" will be called.
   
  My problem is due to this "autoconfig", it will try to parse a standard uart to determine what is its model. But my case is my standard uart is a PCMCIA Bluetooth Card.
   
  I can simply comment out the function "rs_init" to let the "serial.o" do not run this function. But later when I load the module "serial_cs", many problems happened. (seems "rs_init" will initialize other things that I have not done ...)
   
  Since "serial_cs" (the pcmcia uart driver) needs two function calls in "serial.o" (they are: resgister_serial() and unregister_serial() ), so I really need load up "serial.o" before I  can load up "serial_cs.o"
   
  So my problem is, how can I setup such driver in MPC860 environment with a PCMCIA ? 
   
  Thanks all~
  
Best regards,
Chung



Best regards,
Chung  _______________________________________
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