[coreboot] Questions about how to record hardware information on ARM

Marc Jones marcj303 at gmail.com
Tue Jul 26 16:31:32 CEST 2011


Hamo,


On Tue, Jul 26, 2011 at 3:05 AM, Hamo <hamo.by at gmail.com> wrote:
> Hi lists,
> As I have moved forward to writing the ramstage, much more problems came out.
> PCI devices are just extra devices that can be used but not key
> devices like those on X86. Most devices on ARM are connected through
> AHBA bus and can be configured by reading and writing data from and
> into the control registers. So we need a new way to record the
> information of hardware instead of depending on the enumerate and init
> functions of PCI devices.
> This is hard for me since the format we are using to record
> information is highly depending on PCI bus. We need to design a new
> format for ARM.
>
> Could anyone help me? Any suggestions are very welcome!

Are you thinking of extending the resource allocator? How does uboot
do this? What would your device tree look like?

Marc



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