[U-Boot-Users] Porting U-Boot to AMCC 440 Spe
Has anybody ported U-Boot to the AMCC 440-Spe processor at PVR version 53421891.
1. We have an AMCC Yucca board using a processor with PVR 53421890 (revA silicon), the start.s code runs fine.
2. When running this same code on our board with PVR version 53421891 (revB silicon) we always have an ESR set to 0x8000000, as soon as we enable the MSR[ME] Bit is set we of course get a machine check.
3. We have tried a Denx patch to write all three words of the TLB table (to make sure no parity errors are occuring) however we still have the problem.
4. We have applied a Denx patch to write the TLB table depending on whether its revA or revB silicon.
Neither patch has cured the problem?
Has anybody seen this issue ?
William Oppermann
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In message HBEJJCJKELFDJDFGMGGHMEBFDGAA.wo@mpstor.com you wrote:
Has anybody ported U-Boot to the AMCC 440-Spe processor at PVR version 53421891.
U-Boot is running fine on a Yucca Rev. B here:
U-Boot 1.1.5 (Nov 10 2006 - 08:45:01)
CPU: AMCC PowerPC 440SPe Rev. B at 533.328 MHz (PLB=133, OPB=66, EBC=66 MHz) I2C boot EEPROM enabled Bootstrap Option C - Boot ROM Location I2C (Addr 0x54) Internal PCI arbiter enabled 32 kB I-Cache 32 kB D-Cache Board: Yucca - AMCC 440SPe Evaluation Board I2C: ready DRAM: 1024 MB FLASH: 5 MB PCI: Bus Dev VenId DevId Class Int 00 01 1000 0054 0100 00 PCIE:1 successfully set as rootpoint 01 01 1095 3132 0180 00 PCIE:2 successfully set as rootpoint 02 01 1095 3132 0180 00 In: serial Out: serial Err: serial Net: ppc_4xx_eth0
Type "run flash_nfs" to mount root filesystem over NFS
Hit any key to stop autoboot: 0
- When running this same code on our board with PVR version 53421891 (revB
silicon) we always have an ESR set to 0x8000000, as soon as we enable the MSR[ME] Bit is set we of course get a machine check.
- We have tried a Denx patch to write all three words of the TLB table (to
make sure no parity errors are occuring) however we still have the problem.
- We have applied a Denx patch to write the TLB table depending on whether
its revA or revB silicon.
Neither patch has cured the problem?
Please make sure to use a current version of the U-Boot code. Support for 440SPe rev. B. needs at least the version tagged as LABEL_2006_06_30_2020, or better top of tree in the git repo.
Best regards,
Wolfgang Denk
participants (2)
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William Oppermann -
Wolfgang Denk