Setting SIUMCR FYI
We are using u-boot for our custom board based on the MPC8260. For this board the chip select 10 pin is configured as BCTL1. u-boot would hang after SIUMCR was set in cpu_init_f() in the file cpu/mpc8260/cpu_init.c.
The problem is that out of reset OR0[BCTLD] defaults to 0 ("BCTLx is
asserted upon access to the current memory bank" 10-18). My next access to FLASH hung the system. I moved the assignment of SIUMCR after the memory controller ORx/BRx registers are setup, where ORx[BCTLD] is set they way we need, and u-boot ran fine.
As the title suggests this is a FYI. I hope it is helpful.
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Jim Mesenbrink FlightSafety International mesenb at vss.fsi.com Visual Simulation Systems Phone: 314-551-8422 5695 Campus Parkway FAX: 314-551-8444 St. Louis, MO 63042-2338