From: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
To: Alexander Shiyan <shc_work@mail.ru>
Cc: "barebox@lists.infradead.org" <barebox@lists.infradead.org>
Subject: Re: LPC43xx
Date: Mon, 17 Nov 2014 09:01:02 -0300 [thread overview]
Message-ID: <5469E37E.7080803@vanguardiasur.com.ar> (raw)
In-Reply-To: <1416209990.757125007@f345.i.mail.ru>
On 11/17/2014 04:39 AM, Alexander Shiyan wrote:
> Sun, 16 Nov 2014 18:35:23 -0300 от Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>:
>> Hi Alexander,
>>
>> On 10/21/2014 01:34 PM, Alexander Shiyan wrote:
>>> Hello all.
>>>
>>> We started developing device which uses NXP LPC43xx CPU. I would like to add
>>> support for this CPU series into barebox.
>>> The problem is that there is no support for this architecture in the Linux kernel,
>>> and it would upset the current concept (the barebox tree is very similar to Linux
>>> tree and we not have any orphan arch-s).
>>
>> I'm working on the upstream Linux port for LPC43xx SoCs. The obvious
>> choice would be mach-lpc43xx. The problem is that LPC18xx are similar
>> SoCs, and I think it would make sense to have them in the same mach-xxx.
>> Haven't made up my mind on this issue, and I suspect we won't find out
>> until we push some patches upstream.
>>
>> Anyway, if you make any progress with the barebox port, I'd be happy to
>> take a look and help you test it.
>
> The kernel has existing mach-lpc32xx architecture. I think it would be appropriate
> to rename it to mach-lpc and move the CPU-specific options in the local KConfig as first step.
>
LPC3xxx is ARMv5 based while LPC4xxx and LPC1xxx are ARMv7-M based.
Moreover, the peripherals are completely different (I haven't been able
to find anything useful to reuse so far). I'm not sure it makes sense to
make them share the same mach-xxx.
Anyway, we'll find out when we discuss this upstream.
--
Ezequiel Garcia, VanguardiaSur
www.vanguardiasur.com.ar
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next prev parent reply other threads:[~2014-11-17 12:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-21 16:34 LPC43xx Alexander Shiyan
2014-10-22 6:41 ` LPC43xx Uwe Kleine-König
2014-10-22 7:50 ` LPC43xx Sascha Hauer
2014-11-16 21:35 ` LPC43xx Ezequiel Garcia
2014-11-17 7:39 ` LPC43xx Alexander Shiyan
2014-11-17 12:01 ` Ezequiel Garcia [this message]
2014-11-17 12:20 ` LPC43xx Alexander Shiyan
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