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From: vj <vicencb@gmail.com>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 10/11] mach-types: add ID for Archos G9 tablet
Date: Sun, 7 Oct 2012 14:26:39 +0200	[thread overview]
Message-ID: <CAAMcf8Au8ruisajhsy2NbzwBSiR1csDUfsB_JKSnxG3SqfTV=A@mail.gmail.com> (raw)
In-Reply-To: <20121007121600.GI1322@pengutronix.de>

On Sun, Oct 7, 2012 at 2:16 PM, Sascha Hauer <s.hauer@pengutronix.de> wrote:
> On Sun, Oct 07, 2012 at 02:07:28PM +0200, vj wrote:
>> On Sun, Oct 7, 2012 at 12:30 PM, Sascha Hauer <s.hauer@pengutronix.de>wrote:
>>
>> > Please no manual updates to this file, they will be overwritten once the
>> > next update from:
>> >
>> > http://www.arm.linux.org.uk/developer/machines/download.php
>> >
>> > comes in. I see that the Archos G9 does not have a machine id
>> > registered. You can register one yourself at:
>> >
>> > http://www.arm.linux.org.uk/developer/machines/
>> >
>> > btw is 5032 the id Archos uses or did you think it up yourself?
>> >
>> > Sascha
>> >
>> > --
>> > Pengutronix e.K.                           |                             |
>> > Industrial Linux Solutions                 | http://www.pengutronix.de/  |
>> > Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
>> > Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |
>> >
>>
>> 5032 is chosen by Archos in it's Android kernel:
>> http://gitorious.org/archos/archos-gpl-gen9-kernel-ics/blobs/master/arch/arm/tools/mach-types
>
> Appearently the Archos guys can't read :(
>
> In this case I suggest that you just hardcode this number in your board
> file and add a big fat warning comment that you only did that to make
> the Archos kernel bootable.
> Another, maybe better solution would be to:
>
> - register a proper id for the G9
> - use it as default in barebox
> - Add some template in the environment to overwrite it to make the
>   Archos provided Kernel boot.
>
> Sascha
>
> --
> Pengutronix e.K.                           |                             |
> Industrial Linux Solutions                 | http://www.pengutronix.de/  |
> Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
> Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

Well, booting the factory provided kernel would be great and that
would be a reason to preserve the 5032.
But the fact is that's not possible for now. Archos has added some
tweaks to their bootloader and kernel so they write board specific
information in the boot sector and the bootloader passes it to the
kernel.
To be able to boot their kernel this "feature_tags" should be
implemented in barebox.
For more information see:
http://gitorious.org/archos/archos-gpl-gen9-kernel-ics/blobs/master/arch/arm/include/asm/feature_list.h

Regards,
  Vicente.

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  reply	other threads:[~2012-10-07 12:26 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-05 22:33 [PATCH 00/11] archosg9: add support for tablet, third round vj
2012-10-05 22:33 ` [PATCH 01/11] regression: reset can not return vj
2012-10-07  9:42   ` Sascha Hauer
2012-10-05 22:33 ` [PATCH 02/11] twl6030: add debug info vj
2012-10-06  9:30   ` Jean-Christophe PLAGNIOL-VILLARD
2012-10-05 22:33 ` [PATCH 03/11] omap4: add/rename definitions to match datasheet vj
2012-10-05 22:33 ` [PATCH 04/11] ARM: ensure irqs are disabled vj
2012-10-07  9:46   ` Sascha Hauer
2012-10-05 22:33 ` [PATCH 05/11] omap: revert gpiolib vj
2012-10-07 10:11   ` Sascha Hauer
2012-10-09  6:30     ` Teresa Gamez
2012-10-09  6:54       ` Sascha Hauer
2012-10-05 22:33 ` [PATCH 06/11] omap4: add support for booting an omap4 from usb vj
2012-10-07 10:23   ` Sascha Hauer
2012-10-05 22:33 ` [PATCH 07/11] omap4: add serial communications over usb boot vj
2012-10-05 22:33 ` [PATCH 08/11] omap4: add filesystem support " vj
2012-10-05 22:33 ` [PATCH 09/11] omap4: add support for loading second stage from usb vj
2012-10-05 22:33 ` [PATCH 10/11] mach-types: add ID for Archos G9 tablet vj
2012-10-07 10:30   ` Sascha Hauer
2012-10-07 12:07     ` vj
2012-10-07 12:16       ` Sascha Hauer
2012-10-07 12:26         ` vj [this message]
2012-10-07 13:33           ` Jean-Christophe PLAGNIOL-VILLARD
2012-10-07 13:29         ` Jean-Christophe PLAGNIOL-VILLARD
2012-10-05 22:33 ` [PATCH 11/11] Add support " vj
2012-10-07 10:34 ` [PATCH 00/11] archosg9: add support for tablet, third round Sascha Hauer
2012-10-07 12:12   ` vj
2012-10-07 12:23     ` Sascha Hauer

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