[U-Boot-Users] U-Boot on MPC8280

Yuli Barcohen yuli at arabellasw.com
Wed Jan 7 17:14:55 CET 2004

>>>>> Sudhakar Rajashekhara writes:

    Sudhakar> Hi, I am trying to port U-boot-1.0.0 on a board which has
    Sudhakar> MPC8280 processor. I have started with RAM boot. I am
    Sudhakar> using VisionPROBE utility to debug. One of the line which
    Sudhakar> U-boot executes is as follows.

    Sudhakar> boot_warm:
    Sudhakar>         mfmsr r5 /* save msr contents */

    Sudhakar> This line is supposed to move the contents of MSR register
    Sudhakar> to R5 register. I am seeing the content of these two
    Sudhakar> registers before the execution of the above statement and
    Sudhakar> after the execution, using "DR" command.  But I feel that
    Sudhakar> the above statement is not executed properly as the
    Sudhakar> content of R5 register is same even after the above line
    Sudhakar> is executed (in my case 40) whereas MSR is all ZEROes. Why
    Sudhakar> is it happening so? I also want to know whether anyone has
    Sudhakar> sucessfully ported U-boot to MPC8280?

Yes, look at board/mpc8260ads. The port runs on PQ2FADS board on
MPC8280. Our customers use U-Boot on their MPC8270-based boards.

 Yuli Barcohen       | Phone +972-9-765-1788 |  Software Project Leader
 yuli at arabellasw.com | Fax   +972-9-765-7494 | Arabella Software, Israel

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