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

[Pali Rohár]

On Thursday 01 September 2011 11:02:25 Stefano Babic wrote:
> On 09/01/2011 10:42 AM, Pali Rohár wrote:
> > Hello,
> 
> Hi Pali,
> 
> > U-Boot patches which add support for Nokia RX-51 (aka N900) is here:
> > http://al.robotfuzz.com/~al/maemo/u-boot/
> 
> It is quite difficult to review patches in this way, considering you
> have already changed something to adapt to the currect release. I
> suggest you post your modified patches to ML.

Should I rebase patches on top on master now (which still not working) and 
send here?

> 
> > 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.
> 
> Well, it does mean that the RX51 was not adapted for the relocation...
> 
> You should take care that the initial stackpointer (check for
> CONFIG_SYS_INIT_SP_ADDR) is set to a a range into RAM (or internal RAM,
> if any) and it is not overwritten by other parts (where is your TEXT
> code ?).

I check this.

> 
> Move all first initialization into board_early_init_f, if any.
> 
> Best regards,
> Stefano Babic

-- 
Pali Rohár
pali.rohar at gmail.com
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