Re: About support for rtVAX300

[Johnny Billquist <bqt%update.uu.se@localhost>]

A few questions below, as I have a hard time following what you actually 
have done...

On 2013-01-12 23:53, Holm Tiffe wrote:
> [..]
>
> I'm no on that point, weher I should be able to talk with the UART.
>
> The machine boots int my (incomplete) scncnprobe().
>
> void
> scncnprobe(struct consdev *cn)
> {
>
> //static  vaddr_t dz_regs;
>
>          extern vaddr_t iospace;
>          vaddr_t * du_base;
>          int diagcons;
>          paddr_t ioaddr = 0x20100000;
>          extern const struct cdevsw scn_cdevsw;
>
>          switch(vax_boardtype) {
>          case VAX_BTYP_RT300:
>                  diagcons = 0;
>                  break;
>          default:
>                  cn->cn_pri = CN_DEAD;
>                  return;
>          }
>          if (diagcons)
>                  cn->cn_pri = CN_REMOTE;
>          else
>                  cn->cn_pri = CN_NORMAL;
>          cn->cn_dev = makedev(cdevsw_lookup_major(&scn_cdevsw), diagcons);
>          du_base = (void *)iospace;
>          ioaccess(iospace, ioaddr, 1);
>          du_base[0xc]=0xa;
>          DELAY(10000);
>          du_base[0xc]=(u_char)0x42;
>          DELAY(10000);
>          __asm("halt");
>
> }
>
> ...and finally halts at bottom.
> I've used that dz_vsbus.c as example and this is the very first call
> to my driver.
> The UART in this moment should be still poper initialized from the ROM
> code, so writing to this Transmit buffer at 0x2010000c should print out
> the char 'B'.

I assume what you see is that it comes to the halt, but nothing is 
printed on the console, right?

Check your assignment to iospace in your code... :-)
(I hope you do understand what you are doing...)

> I've tried the way with vax_map_physmem at 0x20100000 too (which should be
> a page boundary) but I don't have any luck with that.
> I get no Trap or some such, the machine properly halts..

I'm not sure what you mean you did?

> -EZA0
>
> 2..1..0..
> vax_cpudata: a000006
> vax_cputype: a
> vax_boardtype: a000000
> vax_boardtype(sie): a000009
> fromnet: 1
>
> > > NetBSD/vax boot [1.11 (Thu Jan  3 17:33:22 CET 2013)] <<
> > > Press any key to abort autoboot 5
> SGEC: Ethernet address 00:00:f8:50:93:14
> Trying BOOTP
> Using IP address: 192.168.50.20
> myip: rtvax (192.168.50.20)
> root addr=192.168.50.50 path=/data/home/exports/rtvax
> 2070876+92260=0x210580
>
> ?06 HLT INST
>      PC = 800F2161
> > > >
>
>
>   .text          0x800f1e8c     0x1d07 scn.o
>                  0x800f1f78                scn_match
>                  0x800f1fc4                scninit
>                  0x800f1fce                scncnpollc
>                  0x800f1fd4                scncnputc
>                  0x800f203e                scncnreinit
>                  0x800f2058                scncninit
>                  0x800f20ec                scncnprobe
>                  0x800f2638                scnparam
>                  0x800f2798                scnopen
>                  0x800f2c74                scntty
>                  0x800f2cba                scnpoll
>                  0x800f2d22                scnwrite
>                  0x800f2d8a                scnread
>                  0x800f2df2                scncngetc
>                  0x800f2e34                scnhwiflow
>                  0x800f2eaa                scnstop
>                  0x800f2ed8                scnstart
>                  0x800f2fae                scnioctl
>                  0x800f3216                scn_attach
>                  0x800f365e                scnclose
>
>
> ...any further hints?

Yes, be more careful and observant when you write your code. :-)

        Johnny

--
Johnny Billquist                  || "I'm on a bus
                                  ||  on a psychedelic trip
email: bqt%softjar.se@localhost             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol