Dmytro Bablinyuk wrote:
For blank flash, you need to pull up the RSTCONF* line (8260UM 5.4.2.1 "Single MPC8260 with Default Configuration") which will set your HRCW to all zeros rather than read it from memory (I'm assuming you are not implementing the BCSR).
This will require a different BDI2000 config file because the ISB will be set to 0x0000_0000 - if the first line in your special BDI config file sets the ISB back to your prefered value (0xF000_0000?), you should be able to leave all the rest of your config file the same.
Thank you Jerry,
This removes some magic! Do you know by any chance what the reason can be for
8272>load Loading u-boot.bin , please wait .... # PPC: timeout while waiting for freeze *** TARGET: reset detected, restarting target ...
I have HRCW 0x0E74B20A, (ISB100), so I have changed my BDI config ; init core register WREG MSR 0x00001002 ;MSR : ME,RI WM32 0xF0010004 0xFFFFFFC3 ;SYPCR: disable watchdog WM32 0xF00101A8 0x04700000 ;IMMR : internal space @ 0x04700000 ..
'md', some other commands work fine but 'load' is 'timing out'? u-boot as stand alone starts without problems (HRCW come from flash), BDI is not resetting anymore apart from case when I do 'load'.
Just guesses here...
Is this with an erased flash or with a flash with a HRCW programmed?
When you pull RSTCONF* high, your IMMR is set to 0x00000000. This is quite likely _not_ what you want, so you are going to have to fix up some registers.
In your snippet above, you will need to change: WM32 0x00010004 0xFFFFFFC3 ;SYPCR: disable watchdog WM32 0x000101A8 0x04700000 ;IMMR : internal space @ 0x04700000
You need to review every field in the HRCW and verify a value of 0 is OK or initialize the related registers in your BDI config file. I don't know enough (and am not paid enough ;-) to do this.
gvb