Subsystem ID

[Shubhangi Jadhav]

Hi,

Can we map the device id from lspci output be mapped to the Subsystem ID -
the SID register that needs to be set while initializing any chip on the
motherboard.

Thanks,
Shubhangi

Polling IDE and CF issue.

[Richard Smith]

I've just discovered a compact flash that isn't identified properly by 
the polling IDE code.

Its an 8Meg CF and Linux identifies it as  a Hitachi CV 7.1.1, ATA DISK 
drive with CHS=246/2/32

The polling IDE code sees that there is a drive there issues the info 
command and dosen't generate an error but the model info is blank and 
the CHS info shows all zeros.  Same code seems to work fine with the 
SanDisk and Lexar CFs I have.

So it looks like the IDE_CMD_GET_INFO command is returning back all zeros.

If that's the case then where is Linux getting its info from?

Polling IDE and CF issue.

[Adam Agnew]

Sorry I have to ask, but.. which polled ide code are you talking about?
LinuxBIOS native, Etherboot 5.0.6 or Etherboot 5.1.7?
Thanks
- Adam Agnew

On Wed, 23 Apr 2003, Richard Smith wrote:
> I've just discovered a compact flash that isn't identified properly by
> the polling IDE code.
>
> Its an 8Meg CF and Linux identifies it as  a Hitachi CV 7.1.1, ATA DISK
> drive with CHS=246/2/32
>
> The polling IDE code sees that there is a drive there issues the info
> command and dosen't generate an error but the model info is blank and
> the CHS info shows all zeros.  Same code seems to work fine with the
> SanDisk and Lexar CFs I have.
>
> So it looks like the IDE_CMD_GET_INFO command is returning back all zeros.
>
> If that's the case then where is Linux getting its info from?
>
> Linuxbios mailing list
> [e-mail]
> http://www.clustermatic.org/mailman/listinfo/linuxbios

Polling IDE and CF issue.

Adam Agnew  writes:
> Sorry I have to ask, but.. which polled ide code are you talking about?
> LinuxBIOS native, Etherboot 5.0.6 or Etherboot 5.1.7?

Given that the mentioned command does not occur in etherboot
5.1.7 it sounds like the builtin IDE driver.  Richard please
try the etherboot one.  Ron was looking at backporting it.

There are no magic delay funnies and the code has been tested
with quite a few drives.

Eric

Polling IDE and CF issue.

[Andrew Ip]

Richard,
> I've just discovered a compact flash that isn't identified properly by 
> the polling IDE code.
> Its an 8Meg CF and Linux identifies it as  a Hitachi CV 7.1.1, ATA DISK 
> drive with CHS=246/2/32
> The polling IDE code sees that there is a drive there issues the info 
> command and dosen't generate an error but the model info is blank and 
> the CHS info shows all zeros.  Same code seems to work fine with the 
> SanDisk and Lexar CFs I have.
> So it looks like the IDE_CMD_GET_INFO command is returning back all zeros.
> If that's the case then where is Linux getting its info from?

I have noticed that some CF's require more delay than others.  For instance,
I had to increase WAIT_COUNT from 0xFFFF to 0xFFFFFF in Adam's ide patch
in order to get certain card to work.  Hope this help.

-Andrew

"Shubhangi Jadhav"  writes:
> Hi,
> Can we map the device id from lspci output be mapped to the Subsystem
>
> ID -
>
> the SID register that needs to be set while initializing any chip on the
> motherboard.

This question at least with context makes no sense to me.

Eric