MVME 5100 flash programming

Rick Hunnicutt rhunnicutt at
Thu Dec 20 07:35:35 EST 2001

Hello all,

I have a 5100 running the 2.4.2 kernel and want to use the onboard flash.
With PPC_Bug, we are able to program the 16M area with a kernel and RAM disk
image and boot. At the very least, I'd like to use some of the remaining
flash area as a read/write area for configuration data. Ideally, I'd like
the whole flash area to be a JFFS file system using MTD and the CFI

Problem is, I am unable to get the flash to respond to any type of query.
The MTD code fails to get a response to the CFI query. Other code that tries
to perform a simple query of the chips Manufacture ID fails as well. I can
read the data in the flash that was written by pflash but can't seem to get
writes to occur.

Anyone using the flash on a 5100 at all? Any ideas, code samples, help at
all would be appreciated!


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