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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
- Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial, (continued)
- Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial, Aurelien Jarno, 2009/01/12
- Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial, Aurelien Jarno, 2009/01/13
- Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial, Blue Swirl, 2009/01/13
- Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial, Aurelien Jarno, 2009/01/13
- Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial, Blue Swirl, 2009/01/13
- Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial, Aurelien Jarno, 2009/01/13
- Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial, Laurent Vivier, 2009/01/13
- Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial, Laurent Vivier, 2009/01/13
- Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial, Aurelien Jarno, 2009/01/13
- Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial, Blue Swirl, 2009/01/12
- Re: [Qemu-devel] [6271] Use ESCC for PowerMac serial,
Aurelien Jarno <=