Re: About support for rtVAX300

[Anders Magnusson <ragge%ludd.ltu.se@localhost>]

First:  Gratulations to getting the console printout work :-)  Good job!


On 01/13/2013 02:25 PM, Holm Tiffe wrote:
> Ok, after a bit cleaning of LED Register stuff and some __asm("halts")
> it ends now here:
>
> 2070876+92264 [155104+148119]=0x25a65c
>
> scncprobe passed.
> Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
>      2006, 2007, 2008, 2009, 2010, 2011, 2012
>      The NetBSD Foundation, Inc.  All rights reserved.
> Copyright (c) 1982, 1986, 1989, 1991, 1993
>      The Regents of the University of California.  All rights reserved.
>
> NetBSD 6.0 (RTVAX300-test) #158: Sun Jan 13 13:01:32 CET 2013
>
> holm%beast.freibergnet.de@localhost:/home/holm/tmp/netbsd/root6/usr/src/sys/arch/vax/compile/RTVAX
> VAXstation RTVAX
> total memory = 16380 KB
> avail memory = 13064 KB
> mainbus0 (root)
> cpu0 at mainbus0: RTVAX300, CVAX microcode rev 6 Firmware rev 17
> rtvbus0 at mainbus0
> r0=81800e00 r1=00000001 r2=8028c820 r3=00010080 r4=00000001 r5=00000200
> r6=80fdf640 r7=801ee848
> r8=801fff68 r9=801ee848 r10=80fcd900 r11=8025c68c
> ap=8025c4e0 fp=8025c4b4 sp=ffffffff pc=800f104c
> panic: SEGV in kernel mode: pc 0x800f104c addr 0
> ý
>
> ..which is in my cloned rtvbus.c file, in rtvbus_dma_start():
>
> void
> rtvbus_dma_start(struct rtvbus_dma *vd)
> {
>           
>          SIMPLEQ_INSERT_TAIL(&rtvbus_dma, vd, vd_q);
>           
>          if (rtvbus_active == 0)
>                  rtvbus_dma_intr();
> }
>
> Don't know what this stuff is doing at all..
Ok, I say it again:  You do not want the rtvbus, at least not now :-)  
There is no DMA stuff you have to setup, nor any resources you must handle.
So, there are no use of it.

To get the SGEC to work everything is already there; you only need to:


> Ok, I'm back.
> Fixed that VAXstation Thing in locore.c:
> Is it ok this way?
>
> NetBSD 6.0 (RTVAX300-test) #171: Sun Jan 13 14:07:20 CET 2013
>
> holm%beast.freibergnet.de@localhost:/home/holm/tmp/netbsd/root6/usr/src/sys/arch/vax/compile/RTVAX
> Embedded VAX rtVAX 300
> total memory = 16380 KB
> avail memory = 13064 KB
All VAXen get (and use) the size of the internal memory they get from 
the RPB, passed up by the boot loader.
The RPB is setup by the firmware, so it should be correct.  It also 
provide the system with bad block information, which is currently 
unhandled on vax.

If it isn't, the kernel can count the memory itself.  Just comment out 
the size check from rpb in locore and then everything will be fine :-)

-- Ragge