Ezequiel Garcia ezequiel at vanguardiasur.com.ar
Mon Nov 17 04:01:02 PST 2014

On 11/17/2014 04:39 AM, Alexander Shiyan wrote:
> Sun, 16 Nov 2014 18:35:23 -0300 от Ezequiel Garcia <ezequiel at 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

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