On Wed, Jan 28, 2004 at 11:40:00AM +0100, Rolf Peukert wrote:
we have installed U-boot on a CSB226 board with a PXA255 CPU and a bank of 2 Intel 28F128J3 flash chips (8M x 16bit each). There appeared to be a problem with the flash write function. It would stop after a few words, claiming "flash not erased". Closer inspection revealed, only one of the flashes was in read mode, the other was still in status mode.
Hmm, I havn't tested the CSB stuff for some time and I have only used it with the old board containing the PXA250. As there was no real customer project behind the board and I used it mainly for testing the network chip I didn't investigate the flash stuff too deeply.
There's one more thing I'm unsure about: Which is the right place to set the CPU clock? In boards/csb226/memsetup.S it is set to a default value. In cpu/pxa/start.S it is set to the configured CFG_CPUSPEED value, but memsetup is called after this.
Having just a short look into it it looks like a bug which didn't turn up because I didn't have a faster processor at that time.
Robert