[coreboot] SeaBIOS booting

[Carl-Daniel Hailfinger]

Hi Kevin,

On 04.07.2008 20:59, Kevin O'Connor wrote:
> Hi Carl-Daniel,
>
> On Fri, Jul 04, 2008 at 02:27:08PM +0200, Carl-Daniel Hailfinger wrote:
>   
>> On 04.07.2008 08:40, Kevin O'Connor wrote:
>>     
>>> I don't see anything unusual in the log.  Did all the OSes die in the
>>> same way?  Did anything come up on the vga screen?  What OSes did you
>>> try?
>>>       
>> I found the various "await_ide: ERROR" and "fail floppy_13XX" messages
>> interesting. In another mail you said you're not sure the floppy support
>> works with real hardware. Could that be one of the reasons for the
>> problems Myles is seeing?
>>     
>
> I did notice the "await_ide: ERROR", but the cdrom code was written to
> handle errors during ata_detect_medium (I guess real drives do that?).
> The cdrom did eventually return a valid looking sector count and size,
> so it doesn't look wrong to me.
>
> Myles stated that he had CONFIG_FLOPPY_SUPPORT disabled.  If so, I
> don't see it causing a problem as the code wouldn't even be included.
> The "fail floppy_13XX" messages would be normal if the code isn't
> compiled in - every floppy bios call would return a failure status.
>   

Hmmm. I do believe you. I'd be interested in what a proprietary BIOS
does when no floppy is present and when floppy support is disabled.
IIRC there is a BIOS call listing the number of floppies which never fails.

Regards,
Carl-Daniel