From: cov@codeaurora.org (Christopher Covington)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 1/4] ARM64: Add Kconfig option to enable Big Endian kernel
Date: Wed, 16 Oct 2013 10:30:49 -0400 [thread overview]
Message-ID: <525EA319.5030807@codeaurora.org> (raw)
In-Reply-To: <525E36F8.6080206@linaro.org>
Hi Tushar,
On 10/16/2013 02:49 AM, Tushar Jagad wrote:
> Hi Christopher,
>
> On 10/15/2013 11:39 PM, Christopher Covington wrote:
>
>> What makes a board properly built and how can a user determine whether their
>> board is?
>
> As of now this flag assumes that the bootloader is in LE mode. It is left to
> the kernel to switch to BE mode. This flag makes the kernel set necessary
> flags in SCTLR registers on entry.
I would suggest that you say that instead. The existing wording makes it sound
strictly hardware related.
>>
>>> + [...] and your board
>>> + port must properly enable any big-endian related features
>>> + of your chipset/board/processor.
>>
>> What is a board port for arm64?
>
> This is a generic patch for the architecture. Each driver needs to make
> necessary changes keeping the kernel endianness in mind. We have tested these
> patches on our X-Gene platform.
Perhaps it would be clearer to say "drivers" instead of "board ports" then. I
thought the comment was referring to code inside mach-* or plat-* directories.
Regards,
Christopher
--
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by the Linux Foundation.
next prev parent reply other threads:[~2013-10-16 14:30 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-11 12:22 [RFC PATCH 0/4] Big Endian support for ARM64 kernel Ankit Jindal
2013-10-11 12:22 ` [RFC PATCH 1/4] ARM64: Add Kconfig option to enable Big Endian kernel Ankit Jindal
2013-10-15 18:09 ` Christopher Covington
2013-10-16 6:49 ` Tushar Jagad
2013-10-16 14:30 ` Christopher Covington [this message]
2013-10-11 12:22 ` [RFC PATCH 2/4] ARM64: Include appropriate byteorder for Big Endian Ankit Jindal
2013-10-11 12:22 ` [RFC PATCH 3/4] ARM64: Big Endian fixes for kernel booting Ankit Jindal
2013-10-11 12:52 ` Ankit Jindal
2013-10-15 18:24 ` Christopher Covington
2013-10-16 7:04 ` Tushar Jagad
2013-10-11 12:22 ` [RFC PATCH 4/4] ARM64: Support for 32-bit big endian userspace Ankit Jindal
2013-10-15 18:09 ` [RFC PATCH 0/4] Big Endian support for ARM64 kernel Christopher Covington
2013-10-16 8:05 ` Tushar Jagad
2013-10-16 14:40 ` Christopher Covington
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