[U-Boot] OMAP3: NAND init problems

[Andreas Bießmann]

Dear Simon Schwarz,

Am 17.06.2011 um 12:03 schrieb Simon Schwarz:

> Hi list,
> 
> I'am trying to get the NAND-flash to work in my OMAP3 SPL. I
> essentially call these functions after the base init:
> gpmc_init();
> nand_init();
> 
> But in nand_init() the cpu jumps somewhere in memory. I tracked that
> down to nand_get_flash_type() to the call chip->select_chip(mtd, 0);
> Some digging shows that the select_chip function pointer isn't
> initialized -> just garbage.
> 
> Just before the call to nand_get_flash_type() is a call to
> nand_set_defaults(chip, busw) which IMHO should be responsible to set
> the function-pointers. But this function tests for non-zero value ->
> garbage is non-zero.

so is this uninitialized? Why don't you set this to an explicit value (e.g. zero) just before going into the nand_init() chain.
Where is your 'struct nand_chip' instance located (in .bss, in .data)?

regards

Andreas Bießmann