[U-Boot-Users] DiskOnChip problem on warm boot

Chuck Meade chuckmeade at mindspring.com
Thu Oct 9 16:45:53 CEST 2003

Hi James,

I don't know about the "power on reset" vs. "warm boot" 
aspect of your question, but I regularly get this behavior
when working with DiskOnChip devices.  I get around it by
determining (via printk) how many "floors" are detected
in my device at startup, then going back into the driver
and limiting the number of floors that are being probed to
that number.

What takes so long is the probing of nonexistent "floors",
at least in my case.


> -----Original Message-----
> From: u-boot-users-admin at lists.sourceforge.net
> [mailto:u-boot-users-admin at lists.sourceforge.net]On Behalf Of James
> Bates
> Sent: Thursday, October 09, 2003 6:57 AM
> To: u-boot-users at lists.sourceforge.net
> Subject: [U-Boot-Users] DiskOnChip problem on warm boot
> Hi all,
> Have had my MPC8260ADS based system up and running for a while now but I
> have recently noticed a problem when I warm boot. When it comes to detecting
> the DOC chip I just get a series of 10 "Doc_WaitReady timeout" messages.
> This takes about a couple of minutes and then it carries on with the boot as
> normal. Any ideas of what is happening? This does not happen in a power on
> reset.
> Regards,
> James
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