Re: [LinuxBIOS] New guy in LinuxBios

[yhlu]

the snow screen only happened when I was debugging the onboard VGA support.
So i move the CPU init before other pci device init call. That is
something related to mtrr setting around [0xa0000-0xb0000) the font
buffer.
the halt_sys display is normal...it means the vga option rom is
executed successfully.
you can use filo in etherboot to boot from usb stick.

YH

On 6/25/06, Vincente Tsou  wrote:
> Hi YH,
>
> Thanks again for your help.
>
> Now I can active all devices in my LinuxBios, it almost done except VGA
> function.
>
> I appended a 36k VGA option rom to LinuxBios, and enable Options about VGA.
>
> And I got the halt_sys message:
>
> PCI: 04:02.0 init
> rom address for PCI: 04:02.0 = fff80000
> copying VGA ROM Image from 0xfff80000 to 0xc0000, 0x9000 bytes
> entering emulator
> halt_sys: file
> /home/vincente/LinuxBIOS/LinuxBIOSv2/src/devices/emulator/x86emu/ops.c,
> line 4387
> PCI: 01:04.0 init
>
> then, I can see something output, but the output is like snow screen and I
> can't read anything.
> I think it is working in the wrong mode.
>
> When I made a blind type 'root' and password, I can login the Linux, and
> then the screen became clear. (work fine)
>
> I wonder how to fix the problem? is the halt_sys message normal ?
>
> I also got another question, could it possible boot to MS-DOS floppy/USB
> disk.
> The MS-DOS needs a lot INT function in BIOS, does LinuxBios able to support
> it?
>
> 2006/6/21, Vincente Tsou :
> > Dear YH,
> >
> > got it.
> >
> > Thanks for the information and your help.
> >
> > 2006/6/21, Lu, Yinghai :
> > > Actually the irqtable entries is only for peer root pci bus scan when
>
> mptable is used.
> > > So you need to make sure mptable is right, and put entries for
>
> hypertransport chain other than on bus0.
> > > YH
> > > From: [e-mail] [mailto:[e-mail]] On Behalf
>
> Of Vincente Tsou
> > > Sent: Tuesday, June 20, 2006 7:05 PM
> > > To: Lu, Yinghai
> > > Cc: Stefan Reinauer; [e-mail]
> > >
> > > Subject: Re: [LinuxBIOS] New guy in LinuxBios
> > >
> > > Dear YH,
> > >
> > > excuse me, how about the irq_tables.c?
> > >
> > > should I modify it like tyan/s2882 did.
> > >     printk_debug("setting Onboard Broadcom NIC\n");
> > >     static const unsigned char slotIrqs_8131_1_9[4] = { 5, 9, 0, 0
>
> };
> > >     pci_assign_irqs(bus_8131_1, 9, slotIrqs_8131_1_9);
> > >     write_pirq_info(pirq_info, bus_8131_1,(9<<3)|0, 0x1, 0xdef8,
>
> 0x2, 0xdef8, 0, 0, 0, 0, 0, 0);
> > >     pirq_info++; slot_num++;
> > >
> > >
> > >
> > >
> > >
> > > 2006/6/20, Lu, Yinghai <[e-mail] >:
> > >
> > > You need to update the entries at mptable.c for your slots or onboard
>
> pci device.
> > > YH
> > >
> > > Engineer
> > > R/D, S/W Dept.
> > > NEXCOM International Co.
> > > Tel: [phone] Ext. 3205
> > > Fax: [phone]
> > > E-mail: [e-mail]
> > > Web: http://www.nexcom.com.tw/
> >
> > Engineer
> > R/D, S/W Dept.
> > NEXCOM International Co.
> > Tel: [phone] Ext. 3205
> > Fax: [phone]
> > E-mail: [e-mail]
> > Web: http://www.nexcom.com.tw/
>
> Engineer
> R/D, S/W Dept.
> NEXCOM International Co.
> Tel: [phone] Ext. 3205
>  Fax: [phone]
> E-mail: [e-mail]
> Web: http://www.nexcom.com.tw/
> --
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