[U-Boot] Help: U-Boot on Nokia RX-51 (aka N900)

[Marek Vasut]

On Thursday, September 01, 2011 10:42:48 AM Pali Rohár wrote:
> Hello,
> 
> U-Boot patches which add support for Nokia RX-51 (aka N900) is here:
> http://al.robotfuzz.com/~al/maemo/u-boot/
> 
> RX-51 has closed 2nd stage bootloader NOLO which can load kernel image from
> nand (or usb) to ram and boot it. NOLO also done all HW initializations.
> These U-Boot patches for RX-51 add support that builded U-Boot binary can
> be loaded and booted by NOLO. So U-Boot will be 3rd bootloader.
> 
> Patches are on top of revision bd2313078114c4b44c4a5ce149af43bcb7fc8854 and
> working fine. I rebased these patches on top of u-boot git master
> repository, but booting failed. No output on device. Using git bisect I
> found that problem appeared at revision
> 
> 561142af20f1fd7b425d9425730014e656defb91
> ARM: implement relocation for ARM V7 (OMAP)
> 
> If I defined CONFIG_SYS_ARM_WITHOUT_RELOC U-Boot working and booting fine
> up to revision a9aa3926295df759306258e5e24cace414f53b67
> 
> So problem is that relocation patches broke RX-51 support. Can somebody
> help me how to rewrite/port rx-51 patches to work with ARM relocation (do
> not forget that U-Boot is loaded by 2nd bootloader to RAM after HW is
> initialized by NOLO)? If U-Boot will be working on RX-51 I will prepair
> patches for upstreaming.

Does NOLO enable MMU ?

btw can you post the patches to the ML for review ?

Cheers