Hello,
I've been working on a port of U-Boot for the Motorola PrPMC800 and I've come up against my first obstacle, CFI detection of the flash. The board implements two Intel 28F128J3 devices which, according to Motorola documentation, are each 8 bits wide residing on a 16 bit wide bus. I take that to mean they are interleaved to form a virtual 16 bit wide device. I've already taken care of mapping the devices into the CPU's address space. I borrowed the source code for flash support from the EVB64260 but it didn't work. It fails because it can determine the manufacture code
Do any of the supported boards already support devices in a similar configuration? Could the source code possibly be reused for the PrPMC800?
I don't know anything about how CFI works so I'm trying to avoid doing it from scratch. From the looks of it, it shouldn't be necessary to reinvent the wheel.
But, if I've to start from scratch, anyone know of a good CFI tutorial. I've got the JEDEC docs but can make much of them yet.
Regards, Mark.
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Mark Lightfoot - Software Designer - SITA 777 Walker's Line, Burlington, Ontario, Canada, L7N 2G1 905-681-5575 mark.lightfoot@sita.aero
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