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From: Robert Jarzmik <robert.jarzmik@free.fr>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 2/2] ARM: pxa: add lubbock board support
Date: Wed, 28 Jan 2015 23:53:02 +0100	[thread overview]
Message-ID: <87oapio6up.fsf@free.fr> (raw)
In-Reply-To: <20150128090028.GB12209@pengutronix.de> (Sascha Hauer's message of "Wed, 28 Jan 2015 10:00:28 +0100")

Sascha Hauer <s.hauer@pengutronix.de> writes:

> On Mon, Jan 26, 2015 at 10:33:47PM +0100, Robert Jarzmik wrote:
>> +
>> +static int lubbock_mem_init(void)
>> +{
>> +	arm_add_mem_device("ram0", 0xa0000000, SZ_64M);
>> +	arm_add_mem_device("sram0", 0x0a000000, SZ_1M);
>
> When doing this you'll end up with the SRAM being in ATAGS which is
> probably not what you want. Use add_mem_device() instead.
Right, for v2.

> No hardcoded MAC addresses please. barebox generates a random MAC
> address for you if your board is unable to provide a real one.

I'll remove that from the upstreamed patch. I'll keep it for me for my ISP
router to give me consistently the same IP address through DHCP.

>> +dhcp -H lubbock
>
> dhcp during init time? This unnecessarily delays the boot process when
> booting from flash.
>
> This environment looks very specific to your usecase. Can't you just use
> the generic defenv-2 template?
I'll try for v2, yes.
Speaking of which, this implies one redundant information :
 - the env/init/mtdpart-nor to define partitions (including bareboxenv)
 - the code to add env0:
   devfs_add_partition("nor0", SZ_2M, SZ_256K, DEVFS_PARTITION_FIXED, "env0")

This means that if the partition scheme changes, barebox binary has to be
recompiled and reflashed. Isn't there a better way ? (that was what my
mtd_env_override tried to do btw).

Cheers.

-- 
Robert

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  reply	other threads:[~2015-01-28 22:53 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-26 21:33 [PATCH 1/2] ARM: pxa: add pxa25x support Robert Jarzmik
2015-01-26 21:33 ` [PATCH 2/2] ARM: pxa: add lubbock board support Robert Jarzmik
2015-01-28  9:00   ` Sascha Hauer
2015-01-28 22:53     ` Robert Jarzmik [this message]
2015-01-29  7:36       ` Sascha Hauer
2015-02-03  8:33 ` [PATCH 1/2] ARM: pxa: add pxa25x support Sascha Hauer
2015-02-03 19:27   ` Robert Jarzmik

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