[U-Boot] i.MX6Q SPL won't boot U-Boot from NAND

[Marek Vasut]

On 07/24/2018 09:25 PM, Adam Ford wrote:
> I am trying to boot an i.MX6Q via SPL to U-Boot and eventually, use
> Falcon mode to start the kernel.  I can boot via SPL over USB.  I have
> enabled the NAND and SPL NAND, and i can confirm that mxs_nand_spl.c
> is being built in.  The board is imx6q_logic
> 
> Unfortunately, I have run into two issues.
> 
> 1.  Imxs_nand_init from mxs_nand_spl.c is trying to run
> nand_chip.scan_bbt(mtd), but nand_chip.scan_bbt hasn't been defined
> from what i can tell.
> 
> There is a function called nand_default_bb which looks like it should
> be setup as the default for this, but I am not sure.  As-is, the
> system crashes when it attempts to run because it's a broken/NULL
> function pointer.  Is there something that should initialize this
> pointer and/or what should it reference?
> 
> 2.  With the #1 commented out,  I get some error messages, but I am
> mostly concerned about the BCH read timeout.  I am asking if there is
> something missing.
> 
> #define CONFIG_SYS_NAND_U_BOOT_OFFS    0x200000

+CC Stefano.

btw I think you need kobs-ng to write the SPL in the special NXP format.

-- 
Best regards,
Marek Vasut