Gerald, The MPC8272ADS board has also a 32 bits wide flash. But in the doc, the BPS field appears in the first byte of the HRCW, bits 4-5, which is 11 in "0x0E". So I should be using 32 bit wide access, not 16 bit wide. I am booting from flash, at least it should. Both jumper JP9 and SW2 are selected following doc indications. In fact, those 16 bits I get, are from flash's contents. The jumper I was asking for would be another bad documented one.
I think you are right and my flash width is misconfigured. But it's the reason I cannot figure out. That is why I was asking for phantom jumpers. Alex > -----Original Message----- > > It looks like you have your HRCW/flash/BR0 (any or all of the > preceeding) memory width misconfigured. That is why you are seeing > 0000xyxy -- you should see xyxyxyxy (four repeated bytes). The PQ2FADS > flash is 32 bits wide, is the MPC8272ADS? Your second HRCW byte "74" is > selecting 8 bits port size (BPS field) -- it looks like you are > configured for booting from EEPROM (8 bits wide), not flash. I suspect > it should be "B4" which is what I'm using on the PQ2FADS. > > The PQ2FADS can select either flash (8MByte, 32 bits wide) or EEPROM > (32K, 8 bits wide). Obviously, you want to select flash, not EEPROM. > U-boot is not going to fit in EEPROM (per its design :-). Is that the > "other jumper" you refer to? > > gvb
