Re: Linux kernel BSP

From: Saket Sinha <saket.sinha89@gmail.com>
To: Pankaj Vinodrao Joshi <Pankaj.VJ@exaleapsemi.com>
Cc: "kernelnewbies@kernelnewbies.org" <kernelnewbies@kernelnewbies.org>
Subject: Re: Linux kernel BSP
Date: Wed, 14 Apr 2021 09:50:36 +0200	[thread overview]
Message-ID: <CAK25hWPquBeOY9-qi+rCj_iRAkjLJNGUFmC3RE=Jh0BPKbCuBg@mail.gmail.com> (raw)
In-Reply-To: <BMXPR01MB28700975F6479EAD3E892090EE4E9@BMXPR01MB2870.INDPRD01.PROD.OUTLOOK.COM>

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Hi Pankaj,

Like Greg mentioned there has been a lot of effort in getting android
kernel mainlined so most probably you will not find any issues there.

Most of the Boards(SOCs) are supported in kernel via device tree, configs
etc.

For android userspace and libraries refer - https://source.android.com/

Regards,
Saket Sinha

On Wed, Apr 14, 2021 at 9:25 AM Pankaj Vinodrao Joshi <
Pankaj.VJ@exaleapsemi.com> wrote:

> Ok, Exactly i was looking for any changes are there w.r.t BSP in
> linux-mainline kernel and android kernel but you made me clear with like
> there will be no changes in linux kernel source code including
> drivers,dtsi  right ??
>
> Yes i do agree i am paying for BSP to the board vendors but i was trying
> to get the things which needs to changes as my vendor doesnt provide
> support for android and i want to make android up with my device which have
> support for linux only.
>
>
> Thanks
>
>
>
> ------------------------------
> *From:* Greg KH <greg@kroah.com>
> *Sent:* Wednesday, April 14, 2021 12:35 PM
> *To:* Pankaj Vinodrao Joshi <Pankaj.VJ@exaleapsemi.com>
> *Cc:* kernelnewbies@kernelnewbies.org <kernelnewbies@kernelnewbies.org>
> *Subject:* Re: Linux kernel BSP
>
> On Wed, Apr 14, 2021 at 06:54:49AM +0000, Pankaj  Vinodrao Joshi wrote:
> > Hi Greg KH,
> >
> > i understood BSP (Board support packages ) contains u-boot , drivers
> > ,dts  apart from this what are the elements of BSP i am not able to
> > understand.
>
> It all depends on who you got this "BSP" from.  You are paying for
> support from the vendor whose chip you bought, why not consult their
> documentation and ask them for help?
>
> > Scenario is, i want to port linux BSP to the android BSP and for that
> > i am trying to gather the information about the BSP, what exectly it
> > is, where i should change all kind of stuff
>
> At the kernel level, there is no difference between "linux bsp" and
> "android bsp", it's all just Linux down there.
>
> And again, ask your vendor for this help, you are paying for it already.
>
> > Hope i made you clear with what i am looking for
>
> Not really, sorry. Please be specific as to what you have tried and what
> did not work.
>
> thanks,
>
> greg k-h
> [EXT]
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