[U-Boot] [PATCH] powerpc: do not fixup NULL ptrs

Andre Schwarz andre.schwarz at matrix-vision.de
Thu Nov 4 14:32:15 CET 2010


Jocke,

[snip]

> still -E_TOO_LITTLE_INFO:
>    

sorry - thought it was clear already.

> "include weather booted from NAND or NOR, CPU type(e300cX) and
>   what reset vector is used."
>    
CPU:   e300c4, MPC8379, Rev: 2.1 at 600 MHz, CSB: 400 MHz

- Boot from NOR Flash
- HRCW from I2C EEPROM
- Reset Vector 0x100, i.e. low boot.

Initial RAM ...

#define CONFIG_SYS_INIT_RAM_LOCK       1
#define CONFIG_SYS_INIT_RAM_ADDR       0xE6000000
#define CONFIG_SYS_INIT_RAM_SIZE        0x1000
#define CONFIG_SYS_GBL_DATA_SIZE        0x100
#define CONFIG_SYS_GBL_DATA_OFFSET  (CONFIG_SYS_INIT_RAM_SIZE - 
CONFIG_SYS_GBL_DATA_SIZE)

... mapped by BAT5

#define CONFIG_SYS_IBAT5L       (CONFIG_SYS_INIT_RAM_ADDR | BATL_PP_10)
#define CONFIG_SYS_IBAT5U       (CONFIG_SYS_INIT_RAM_ADDR | BATU_BL_128K 
| BATU_VS | BATU_VP)
#define CONFIG_SYS_DBAT5L       CONFIG_SYS_IBAT5L
#define CONFIG_SYS_DBAT5U       CONFIG_SYS_IBAT5U


Of course ELDK-4.2 toolchain.

>> My latest MPC8377 board does not even start without your suggested 4 nops.
>> It does not start (i.e. serial line completely dead) with any USB
>> functionality defined.
>>      
> Something else is broken here, no idea what.
>
>    
If it's an alignment or linking problem it could have the same root cause.
Just want to give as much information as I can.


Cheers,
André

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