[U-Boot] skip relocation
Reinhard Meyer
u-boot at emk-elektronik.de
Sun Jan 2 21:31:45 CET 2011
Dear Marcel,
>> Is there any example that boots from NOR ?
looking at the defines below, you are not really booting u-boot from NOR...
> #define CONFIG_SKIP_LOWLEVEL_INIT
If you do that, you must have an initial boot code before u-boot. See below...
> #define CONFIG_SKIP_RELOCATE_UBOOT
Not used anymore.
> /* SDRAM */
> #define CONFIG_NR_DRAM_BANKS 1
> #define PHYS_SDRAM 0x70000000
> #define PHYS_SDRAM_SIZE 0x08000000 /* 128 megs */
Those defines have had their names changed.
> #define CONFIG_SYS_GBL_DATA_SIZE 128
This constant is wrong, use the auto-generated value.
> /*
> * Size of malloc() pool
> */
> #define CONFIG_SYS_GBL_DATA_SIZE 128 /* 128 bytes for initial data */
This constant is wrong, use the auto-generated value.
> Forgot to mention a few items :
>
> I flash the NOR at address 0x10020000
> TEXT_BASE is 0x10020000
That really implies you have another boot program running before u-boot.
Proably AT91 bootstrap? Is it configured to jumo to 0x1002000, or does it copy
u-boot to some SDRAM address and jumps there?
Have a look at the current implementation for top9000 in u-boot-arm/master
and compare your files to it. Any differences to your code that are not board
and/or SoC specific probably have to be fixed in your board code or you should
be able to reason why it must be different for your board.
Best Regards,
Reinhard
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