[coreboot] [PATCH][RFC] A new way using a binary file to add-stage to a rom file on ARM

[Marc Jones]

On Wed, Jul 20, 2011 at 3:53 PM, Hamo <hamo.by at gmail.com> wrote:
> On Wed, Jul 20, 2011 at 11:29 PM, Bari Ari <bari at onelabs.com> wrote:
>> http://www.mini-box.com/mini2440v2  is an old ARM9 dev board that is still
>> readily available the uses a 2MB NOR Flash for init and bootloader. Most ARM
>> systems that will make use of coreboot won't have a separate SPI or NOR
>> flash to hold the init and bootloader. But you have to start somewhere.
>> We'll just have to make this work from on-board NAND, eMMC or SD Card later.
>
> If we don't add romstage to the romfile and don't compress the
> ramstage since the decompress code is too big for bootblock we can
> boot from the NAND Flash or SD card. In the ramstage, we init the
> Flash controller so that we can read the payload and kernel from the
> NAND flash later.
> I don't test my thought yet. Maybe it doesn't work for that I may
> assume something like we have a romstage in my code.

Why would you exclude romstage? What will setup the RAM? bootblock? i
suspect that the stuff you are doing in  bootblock should be done in
romstage.

Marc




-- 
http://se-eng.com