qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial


From: Aurelien Jarno
Subject: Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial
Date: Mon, 12 Jan 2009 22:10:41 +0100
User-agent: Mutt/1.5.18 (2008-05-17)

On Mon, Jan 12, 2009 at 10:48:06PM +0200, Blue Swirl wrote:
> On 1/12/09, Aurelien Jarno <address@hidden> wrote:
> > On Mon, Jan 12, 2009 at 10:32:43PM +0200, Blue Swirl wrote:
> >  > On 1/12/09, Aurelien Jarno <address@hidden> wrote:
> >  > > On Mon, Jan 12, 2009 at 05:40:24PM +0000, Blue Swirl wrote:
> >  > >  > Revision: 6271
> >  > >  >           
> > http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6271
> >  > >  > Author:   blueswir1
> >  > >  > Date:     2009-01-12 17:40:23 +0000 (Mon, 12 Jan 2009)
> >  > >  >
> >  > >  > Log Message:
> >  > >  > -----------
> >  > >  > Use ESCC for PowerMac serial
> >  > >  >
> >  > >
> >  > >
> >  > > [snip]
> >  > >
> >  > >
> >  > >  > Modified: trunk/hw/ppc_oldworld.c
> >  > >  > ===================================================================
> >  > >  > --- trunk/hw/ppc_oldworld.c   2009-01-12 17:38:28 UTC (rev 6270)
> >  > >  > +++ trunk/hw/ppc_oldworld.c   2009-01-12 17:40:23 UTC (rev 6271)
> >  > >  > @@ -33,6 +33,7 @@
> >  > >  >  #include "pci.h"
> >  > >  >  #include "boards.h"
> >  > >  >  #include "fw_cfg.h"
> >  > >  > +#include "escc.h"
> >  > >  >
> >  > >  >  #define MAX_IDE_BUS 2
> >  > >  >  #define VGA_BIOS_SIZE 65536
> >  > >  > @@ -126,7 +127,7 @@
> >  > >  >      int vga_bios_size, bios_size;
> >  > >  >      qemu_irq *dummy_irq;
> >  > >  >      int pic_mem_index, nvram_mem_index, dbdma_mem_index, 
> > cuda_mem_index;
> >  > >  > -    int ide_mem_index[2];
> >  > >  > +    int escc_mem_index, ide_mem_index[2];
> >  > >  >      int ppc_boot_device;
> >  > >  >      BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
> >  > >  >      int index;
> >  > >  > @@ -296,8 +297,8 @@
> >  > >  >      /* XXX: suppress that */
> >  > >  >      dummy_irq = i8259_init(NULL);
> >  > >  >
> >  > >  > -    /* XXX: use Mac Serial port */
> >  > >  > -    serial_init(0x3f8, dummy_irq[4], 115200, serial_hds[0]);
> >  > >  > +    escc_mem_index = escc_init(0x80013000, pic[0x10], 
> > serial_hds[0],
> >  > >  > +                               serial_hds[1], ESCC_CLOCK, 4);
> >  > >
> >  > >
> >  > > I don't think this address is correct. Also this is later mapped by
> >  > >  macio_init() later.
> >  >
> >  > It's there to enable some kind of serial console before PCI probing
> >  > and device mapping has been done, the address is arbitrary.
> >  >
> >  > Maybe the new mapping could remove the old one.
> >
> >
> > Ok, I see.
> >
> >
> >  > >  Also I have tried with the latest SVN of OpenBIOS (which includes the
> >  > >  corresponding patches for ESCC), and the machine doesn't boot anymore.
> >  > >  Using -serial stdio, I see
> >  > >
> >  > >  | >> =============================================================
> >  > >  | >> OpenBIOS 1.0RC1 [Jan 12 2009 19:28]
> >  > >  | >> Configuration device id QEMU version 1 machine id 2
> >  > >  | >> CPUs: 1
> >  > >  | >> Memory: 144M
> >  > >  | >> UUID: 00000000-0000-0000-0000-000000000000
> >  > >  | >> CPU type PowerPC,750
> >  > >  | >> Initializing PCI devices...
> >  > >  | >> 0:0.0 - 1057:2 - /pci -
> >  > >  | >> 0:1.0 - 1234:1111 - /pci/QEMU,VGA -
> >  > >
> >  > >  Then it hangs there.
> >  >
> >  > Strange, at least Debian 3.1 R8 (CD and direct -kernel), Debian 4.0 R5
> >  > (CD and direct -kernel), Debian 4.0 R6 and Gentoo 2008.0 act like
> >  > before.
> >
> >
> > I have the same problem with a CDROM, an hard disk, -kernel.
> >
> >
> >  > What kind of setup do you have? At least OpenBIOS config is not
> >  > standard, you have enabled PCI debugging.
> >
> >
> > I have built OpenBIOS by hand, native build. This is the unmodified SVN.
> 
> Try r396 :-).
> 
> Actually, it looks like serial output during PCI probing breaks something.
> 

I confirm it works. Thanks.

-- 
  .''`.  Aurelien Jarno             | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   address@hidden         | address@hidden
   `-    people.debian.org/~aurel32 | www.aurel32.net




reply via email to

[Prev in Thread] Current Thread [Next in Thread]