-----Original Message----- From: alebas@televes.com [mailto:alebas@televes.com] Sent: Tuesday, November 09, 2004 8:20 AM To: VanBaren, Gerald (AGRE) Cc: u-boot-users@lists.sourceforge.net Subject: RE: PATCH: add low-boot configuration to MPC8260ADS family of boards (VanBaren, Gerald (AGRE))

Gerald,

I think I have found some problem with the HRCW for lowboot in the MPC8272ADS board. In this board, IRQ5_, which is multiplexed via BAC with BADDR31, is used as PHY interrupt line. So BADDRxx are not being used at all and BAC=01, not 10 as it is in lowboot HRCW.

I have not tested this, as my board's gone for some days, but at least, i think that for this board it should be HRCW=#0E74B646 instead of HRCW=#0EB4B645.

I also include a log file from the BDI2000 where you can see that low bits in the flash are not accesible with this configuration (so that's why I think I can't get u-boot runnning). Could it be the same problem or another one?

Best regards

Alex

Indeed that would be a problem. I notice your MODCK_H is different too (last nibble is 6 vs. 5). This should be handled in include/configs/MPC8260ADS.h where the HRCW is defined.

I don't know if it is practical to define all the combinations since I don't know what all the combinations are -- the boards may or may not have L2 cache (mine doesn't), on my board the PHY IRQ is 3 (unless 60x bus parity is disabled in which case it is 7), etc.

The question is whether we can #define our way out of these configuration differences or if we will have to accept that people with these board will have to review and change their HRCW definition.

I propose you figure out what your HRCW should be, with some notes in terms of how your board is configured vs. what it can be configured for. I'll do the same with my PQ2FADS-ZU board. This will probably be managable and we can send a patch to Wolfgang. If and when others work with different boards, they can extend what we start, assuming it stays reasonable.

I see Yuli Barcohen yuli@arabellasw.com is the board maintainer of record for the MPC8260ADS board, perhaps he is on this list and has some wisdom to impart?

gvb

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