[U-Boot] uboot imx31 nand boot

[Magnus Lilja]

Hi

On 2010-10-14 12:17, Nico van Wyk wrote:
> Good Day
> 
> I am planning on using uboot to boot linux on the imx31.
> 
> The system will be booting from nandflash( making use of micron nand flash using the quasi standard protocol)
> 
> I would like to know if i need to create a 1st stage bootloader that executes from the 1st 2k of nandflash that will boot uboot or if
> uboot is able to do this (via the nand spl).
> 
> If uboot is capable of doing this how do i go about setting up (compile time options) for this or point me to some documentation?

U-boot is capable of this. The i.MX31 PDK board, which is in the u-boot tree, does this. 

Note 1: The PDK board hasn't been updated to the new ARM relocation code yet so you have to define CONFIG_SYS_ARM_WITHOUT_RELOC in the config file.

Note 2: Commit http://git.denx.de/?p=u-boot.git;a=commitdiff;h=f3bb63a304c4e76010a2a4e99da61f7b6ffffc77 broke support for booting from 8 bit NAND devices. The PDK board uses 16 bit NAND bus and works.


Regards, Magnus Lilja