Please refer to the latest reference manual about the two bits. The bit 17 and 18 should be XAM. See the section 10.3.1.2.1
I don't recommend you put the 2.0 silicon to orginal MDS board directly. Please contact with Freescale FAE or sales to get more information about it.
Hey Dave,
While looking through the U-Boot source for the MPC8349E-MDS board, I noticed the following:
u-boot/include/configs/MPC8349EMDS.h
CFG_OR0_PRELIM 0xFF806FF7
The '6' in the middle of this word corresponds to bits 17 and 18, but in the reference manual these bits are marked as reserved, and at processor reset are 00b.
Since you and Ben have been working on this board a while, I was wondering if there was anything special about these particular bits, eg. needed in silicon 1.0, but not the 1.1 on the MDS board.
Is this something I should try setting to 0, test on the MDS board, and then submit a patch for?
Also, do you know if the 2.0 silicon can be dropped into the MDS board without change?