Add support for Beagle Bone Black (was: coreboot on the open source Berkeley RISC V processor - available ?)

[Paul Menzel]

Dear Punit,

Am Sonntag, den 31.07.2016, 13:31 +0530 schrieb Punit Vara:
> > On Sun, Jul 31, 2016 at 1:18 PM, punit vara wrote:
> > Btw I have Beagle Bone Black I can port coreboot on that one if
> > it's not available.  I was lurking on IRC and came to know that
> > there are few patches on Beagle bone available. I have checked it
> > out beagle bone has support for coreboot but not sure about beagle
> > bone black. I will try it on BBB and let you know about that :)
>
> patches for BBB are from 2013 and according to mailing list it's not
> finished yet. I would like to work on it :). I found the reason to
> contribute to coreboot :)

To my knowledge, the current support for the BeagleBone is only
minimal, meaning you can receive a message over the serial console and
not more. So all the fun, that means difficult, stuff is still not
implemented.

The upside is, that you can look at U-Boot or Barebox and other free
boot loader/firmware, to see what registers need to be set and so on.

So, I am looking forward to your work. Please ask any questions you
have.

Thanks,

Paul

[punit vara]

For this month I will be bit slow due to GSOC work. Once I will
finish it coreboot on BBB will be my first priority :)

On Sun, Jul 31, 2016 at 5:57 PM, Paul Menzel
 wrote:
> Dear Punit,
>
> Am Sonntag, den 31.07.2016, 13:31 +0530 schrieb Punit Vara:
> > > On Sun, Jul 31, 2016 at 1:18 PM, punit vara wrote:
>
> To my knowledge, the current support for the BeagleBone is only
> minimal, meaning you can receive a message over the serial console and
> not more. So all the fun, that means difficult, stuff is still not
> implemented.

Wow that's the good new for me. I love to solve difficult stuff
because it teachs a lot :)
> The upside is, that you can look at U-Boot or Barebox and other free
> boot loader/firmware, to see what registers need to be set and so on.

Thanks for suggestion  I will start reading and keep community posted
about my progress on this.
> So, I am looking forward to your work. Please ask any questions you
> have.

In root directory I tried
$make menuconfig

I setup Mainboard vendor  (TI)
Main Board Model (Beagle bone)

Third one is ROM size

In BBB EEPROM is 32 KB which contains Board info. That size not
available in menu. I am not sure where should I flash this coreboot ?

There are three memory in BBB

1. 512MB DDR3L RAM
2. 32 KB EEPROM
3. 4GB EMMC

Any clue ?

Thanks,
Punit Vara