[SunHELP] tatung COMP TWS-9320 flash prom update

[Gregory Steuck]

Hello list,

I am not the first to ask this question, but it has not been answered on
this list so far. So, let us try again to find a solution.

I got an Ultra 2 clone made by Tatung (identifies itself as COMP
TWS-9320, or marketing name: COMPstation U2MP Series Model 1300).

My attempt to boot NetBSD or OpenBSD kernel on it ends with the
infamous: "Fast Data Access MMU Miss".

ok boot net bsd.rd
Boot device: /sbus/SUNW,hme at e,8c00000  File and args: bsd.rd
12c00 >> OpenBSD 3.0-current (obj) #24: Fri Jan  4 13:47:09 MST 2002
    deraadt at sparc64.openbsd.org:/usr/src/sys/arch/sparc64/stand/ofwboot.net/obj
Using BOOTPARAMS protocol: ip address: 192.168.1.10, hostname: tidy
root addr=192.168.1.1 path=/usr/src/tidy/root
Booting /sbus at 1f,0/SUNW,hme at e,8c00000/bsd.rd
1228373 at 0x1000000+3223696@0x1800000+970608 at 0x1b13090 
symbols @ 0xfff82200 58 start=0x1000000
Fast Data Access MMU Miss

 From what I gathered on the net so far it means that my openboot prom is
out of date and installation of flash update (namely patch 104169-08
from sun) should cure the problem.

The only problem is: Sun's patch does not recognize the hardware as
suitable for flash update.

Rebooting with command: boot disk /flash-update-Ultra2-latest         
Boot device: /sbus/SUNW,fas at e,8800000/sd at 0,0  File and args: /flash-update-Ultra2-latest
-

Standalone Flash PROM Update Utility, Rev. 2.4
                        Ultra(tm) 1
                        Ultra(tm) 2
                        Ultra(tm) 5/10
                        Ultra(tm) 30
                        Ultra(tm) 60 / E220R
                        Ultra(tm) 80 / E420R
                        Ultra(tm) Enterprise(tm) 250
                        Ultra(tm) Enterprise(tm) 450




**ERROR: Invalid system model property:

The model property found was: COMP TWS-9320


>From the "ok " prompt type "dev /", then ".properties" 
and look at the "model" property to see the system number.
--------------------------------------------
And, indeed, model number is nothing like SUNW,xxxx:

ok .version
Release 3.11 Version 2 created 1999/01/21 14:15
OBP 3.11.2 1999/01/21 14:15
POST 3.3.7 1999/01/21 02:21
ok dev /
ok .properties
idprom                   01 80 00 80 3f 12 34 56 37 d1 b2 80 12 34 56 ea
reset-reason             S-POR
breakpoint-trap          0000007f 
#size-cells              00000002 
energystar-v2            
model                    COMP TWS-9320
name                     SUNW,Ultra-2
clock-frequency          05e15aaa 
banner-name              COMPstation U2 UPA/SBus (UltraSPARC-II 296MHz)
device_type              upa
--------------------------------------------

So, my questions are:

1) has anybody been successful updating flash in tatungs?
2) if not, how can I force sun's patch to install on tatung?
3) how can I change this model string to that of the original sun ultra2?
4) what is the model number of sun ultra2?
5) what do I risk if I go with a binary editor and patch sun's flash
   update image so that it recognizes "COMP" as a valid model?
6) which jumper on the 9320 board needs to be moved to make flash
   writable? I already half way succeeded with approach 5,
   and now it complains about J2003 not been in position 2-3
   even though it is.

Tatung acknowledged the receipt of my questions but has not given any
solution so far.

Thanks
Greg