[U-Boot] U-boot hangs in mtest in MPC8280 Board

[GurumurthyGowdar]

On Thu, 30 Jul 2009 20:07:46 +0530  wrote
>GurumurthyGowdar wrote:
>> 
>> On Thu, 30 Jul 2009 16:14:30 +0530  wrote
>>> Hello GurumurthyGowdar,
>
>[snip]
>
>> i got one new error which is below :- 
>> U-Boot 1.3.1 (Jul 27 2009 - 17:27:10)
>> 
>> MPC8260 Reset Status: Check Stop, External Soft, External Hard
>> 
>> MPC8260 Clock Configuration
>>  - Bus-to-Core Mult 3x, VCO Div 4, 60x Bus Freq  16-50 , Core Freq  50-150
>                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>WHAT IS YOUR BUS FREQUENCY?
>WHAT IS YOUR CORE FREQUENCY?
>WHY DO THE NUMBERS THE ABOVE NOT MATCH THE ONES BELOW?
>
>>  - dfbrg 1, corecnf 0x10, busdf 4, cpmdf 1, plldf 0, pllmf 4, pcidf 3
>>  - vco_out  500000000, scc_clk  125000000, brg_clk   31250000
>>  - cpu_clk  300000000, cpm_clk  250000000, bus_clk  100000000
>      ^^^^^^^^^^^^^^^^^^                      ^^^^^^^^^^^^^^^^^^
>
>300MHz >> 15-150MHz
>100MHz >> 16-50MHz

i have configured according to MPC8280 Reference Manual. it is correct values , i have checked HRCW and MOC_CK configuration. 

but when U-boot boots the values does not matching i am also surprised about this. you are saying according to MPC8260.

have anyon eported U-boot to MPC8280,let me know what configuration you have set?
>
>The MPC8260 has different configuration options to compensate (I 
>presume) for hardware clocking delays, etc. when it is run fast vs. 
>slow.  If you have your CPU misconfigured for running at a slow speed 
>but actually clocking fast, I would expect your CPU and bus will be flaky.
>
>IIRC (it's been a while), you need to read the reset section of the 
>User's Manual and make sure your Hardware Reset Configuration Word and 
>configuration strapping pins are correct for the clocking you are using.
>
>> CPU:   MPC8260 (HiP7 Rev 14, Mask 1.0 1K49M) at 300 MHz
>> Board: MPC8280 Based Remote IO CARD.SLN Technologies Pvt Ltd.
>> I2C:   ready
>> DRAM:  512 MB
>> FLASH: 256.5 MB
>> *** Warning - bad CRC, using default environment
>> 
>> NIP: 1FFE8A88 XER: 00000000 LR: 1FFE89CC REGS: 1ffa1df0 TRAP: 0700 DAR: 00000000
>> MSR: 00083002 EE: 0 PR: 0 FP: 1 ME: 1 IR/DR: 00
>> 
>> GPR00: 00729878 1FFA1EE0 EFFFFFFF 28EE0928 1FFAB424 00006BC4 1FFA201D 3D313135 
>> GPR08: 1FFF0314 00000000 0028EE09 E6635C01 1FFA1CB0 FFF7FEFF 1FFFE000 DFFD2000 
>> GPR16: 1FFF6E00 00000000 00000000 00000000 00003002 00000001 00000000 1FFD5098 
>> GPR24: 1FFD57D4 01000000 1FFA1F20 00000000 1FFA2008 1FFA1F6C 1FFFEB88 1FFF715C 
>> Call backtrace: 
>> Program Check Exception
>
>Hmmm, CPU and bus flaky.
>
>[snip]
>
>Best regards,
>gvb
>