linux-kernel - Re: not syncing: Attempted to kill init! exitcode=0x00000004 ?

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Message-ID: <CAK7LNATkYVwT337okeW=c1NjyxB4ovXKSNzxtTwk7XXGN45z7w@mail.gmail.com>
Date:	Tue, 7 Apr 2015 17:22:32 +0900
From:	Masahiro Yamada <yamada.masahiro@...ionext.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: not syncing: Attempted to kill init! exitcode=0x00000004 ?

Hi Arnd,

Thanks for your comment!

2015-04-07 16:41 GMT+09:00 Arnd Bergmann <arnd@...db.de>:
> On Tuesday 07 April 2015 12:34:30 Masahiro Yamada wrote:
>>
>> What is the cause of the kernel panic?  How to fix it?
>> Any hint is very appreciated.
>>
>
> Cortex-A9 usually need to set up the L2 Cache controller, and you
> don't have a node for that.
>
> Can you try adding a DT node for it? You may also have to specify
> the overrides for its aux control register in DT if that is not
> set up right by the boot loader or the power-on defaults.

I have not checked the L2 (outer) cache yet.

The L2 cache on our SoC is not a famous IP, but our own implementation.
I will have to implement L2 code as well as the device tree node.
Is there any workaround to boot Linux without L2 cache?


-- 
Best Regards
Masahiro Yamada
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