VAXstation 4000 TURBOchannel not working

[Felix Deichmann <m4j0rd0m0%gmail.com@localhost>]

Hi,

I was lucky to obtain a rare TURBOchannel extension module for the 
VAXstation 4000, and just tested it in my VS4000/60. Had no time to try 
in the /96 yet.

Unfortunately it is not detected booting a NetBSD-7.0 GENERIC kernel, 
although everything seems to be there for "tc at vsbus" at first glance, 
in the kernel config, tc_vsbus.c etc.

But tcbus_match() in tc_vsbus.c just returns 0... Support is called 
"preliminary" in revision 1.1 and not much has changed since then.

I also found an interesting "Vaxstation Turbochannel" conversation 
between Blaz Antonic and Roger Ivie from 2004 on this list...

Any more hints or things to watch out before I will change that return 
to "1"? :)
There seems to be a bit indicating an installed TC module, so a real 
match routine as first step would be fine.

Some console output follows inline.

Regards,
Felix



NetBSD 7.0 (GENERIC.201509250726Z)
VAXstation 4000/60
total memory = 81500 KB
avail memory = 74708 KB
kern.module.path=/stand/vax/7.0/modules
mainbus0 (root)
cpu0 at mainbus0: KA46, Mariah, 2KB L1 cache, 256KB L2 cache
vsbus0 at mainbus0
vsbus0: 32K entry DMA SGMAP at PA 0x6a0000 (VA 0x806a0000)
vsbus0: interrupt mask 0
le0 at vsbus0 csr 0x200e0000 vec 770 ipl 17 maskbit 1 buf 0x0-0xffff
le0: address 08:00:2b:xx:xx:xx
le0: 32 receive buffers, 8 transmit buffers
dz0 at vsbus0 csr 0x200a0000 vec 124 ipl 17 maskbit 4
dz0: 4 lines
lkkbd0 at dz0
wskbd0 at lkkbd0 mux 1
lkms0 at dz0
wsmouse0 at lkms0 mux 0
asc0 at vsbus0 csr 0x200c0080 vec 774 ipl 17 maskbit 0
asc0: NCR53C94, 25MHz, SCSI ID 7
scsibus0 at asc0: 8 targets, 8 luns per target
scsibus0: waiting 2 seconds for devices to settle...
boot device: le0
root on le0



>>> sh config

KA46-A V1.3-387-V4.1
08-00-2B-XX-XX-XX
80MB

DEVNBR    DEVNAM           INFO
------    --------    --------------------------
     1         NVR    OK
     2         LCG    OK
                       HR - 8 PLN FB - V1.1
     3          DZ    OK
     4       CACHE    OK
     5         MEM    OK
                      80MB = SY=8MB, S0/1=8MB, S2/3=32MB, S4/5=32MB
     6         FPU    OK
     7          IT    OK
     8         SYS    OK
     9          NI    OK
    10        SCSI    OK
                      7-INITR
    11         AUD    OK
    13         TCA    OK
                       OPT PRS    V1.0

>>> t/ut tca
**KA46/49 TURBOCHANNEL REX EMULATOR**

    >>t tc0 cnfg
    *emul: t tc0 cnfg
 DEC       PMAD-AA   V5.3a      (enet: 08-00-2b-xx-xx-xx)

    >>
  bye