[U-Boot-Users] MPC8272ADS and uboot program check

[Dan Poirot]

> > After some days working ok with my MPC8272ADS board, now it keeps rebooting
> > all the time with a Program Check report. It has arrived after a hang.
> > 
> > I have been checking the output as this is all the information i have at the
> > moment. I have realized that clock reporting is incoherent (the true one is
> > cpu_clk=400Mhz), so i wonder if it has any relation.
> 
>
> Looks like broken hardware to me. ESD?
> 
> Best regards,
> 
> Wolfgang Denk


I get the same thing when I mount a new MPC8272 part labled:
  MPC8272ZQTIEA
  400/200/100 MHZ

I wonder if the PVR value has changed for newer chips.


U-Boot 1.1.2 (Sep  8 2004 - 13:02:09)

MPC8272 Reset Status: External Soft, External Hard

MPC8272 Clock Configuration
 - Bus-to-Core Mult 3.5x, VCO Div 2, 60x Bus Freq  30-85 , Core Freq 100-300
 - dfbrg 1, corecnf 0x1e, busdf 3, cpmdf 1, plldf 0, pllmf 3
 - vco_out  800000000, scc_clk  200000000, brg_clk   50000000
 - cpu_clk  350000000, cpm_clk  400000000, bus_clk  100000000
 - pci_clk  133333333

CPU:   ### ERROR ### Please RESET the board ###


My old part gives:

U-Boot 1.1.2 (Sep  8 2004 - 13:02:09)

MPC8272 Reset Status: Check Stop, External Soft, External Hard

MPC8272 Clock Configuration
 - Bus-to-Core Mult 3.5x, VCO Div 2, 60x Bus Freq  30-85 , Core Freq 100-300
 - dfbrg 1, corecnf 0x0e, busdf 3, cpmdf 1, plldf 0, pllmf 3
 - vco_out  400000000, scc_clk  100000000, brg_clk   25000000
 - cpu_clk  350000000, cpm_clk  200000000, bus_clk  100000000
 - pci_clk   66666666

CPU:   MPC8272 (HiP7 Rev 13, Mask 0.0 0K50M) at 350 MHz
Board: Motorola MPC8272ADS
DRAM:  64 MB
FLASH:  8 MB
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   FCC2 ETHERNET
Hit any key to stop autoboot:  0
=>


- dan