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Date: Tue, 4 Sep 2018 14:38:01 +0200
From: Boris Brezillon <boris.brezillon@bootlin.com>
To: Ashish Kumar <ashish.kumar@nxp.com>
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Subject: Re: Query| USE of MTD_CFI_ADV_OPTIONS for SPI-NOR/serial-NOR flash
 for BE-kernel on arm64
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Hi Ashish,

On Tue, 4 Sep 2018 11:21:11 +0000
Ashish Kumar <ashish.kumar@nxp.com> wrote:

> Hi all,
>=20
> I may sound very na=C3=AFve, but I do not have other options to look for.
> What I was trying to achieve was "running BE-kernel on arm64, with the SP=
I-NOR controller(fsl_qspi) configured for AHB and IP buffer in BE mode. It =
works to an extent but not all is working correctly.

Could you detail what is working and what is not?

>=20
> I was grep-ing through /driver/mtd/ and include/linux/mtd to look for the=
se advance option(MTD_CFI_ADV_OPTIONS) to be used for SPI-NOR interface, is=
 there a way this(MTD_CFI_BE_BYTE_SWAP) can be achieved for SPI-NOR flash?
>=20
> Is anyone working on this, or similar thing?

That's not the proper fix. If you want you driver to work in
big-endian, fix the driver.

Regards,

Boris