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Date: Tue, 19 Mar 2024 23:31:18 +0100 (CET)
From: Richard Weinberger <richard@nod.at>
To: Daniel Golle <daniel@makrotopia.org>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>, 
	Vignesh Raghavendra <vigneshr@ti.com>, 
	Rob Herring <robh+dt@kernel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, 
	Conor Dooley <conor+dt@kernel.org>, 
	linux-mtd <linux-mtd@lists.infradead.org>, 
	devicetree <devicetree@vger.kernel.org>, 
	linux-kernel <linux-kernel@vger.kernel.org>, 
	david oberhollenzer <david.oberhollenzer@sigma-star.at>
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Subject: Re: [PATCH v7 7/7] mtd: ubi: provide NVMEM layer over UBI volumes
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----- Urspr=C3=BCngliche Mail -----
> Von: "Daniel Golle" <daniel@makrotopia.org>
>> BTW: Is there a nice way to test this with nandsim in qemu?
>> I'd love being able to test all ubi attach code paths on my test setup.
>=20
> From what I can tell 'nandsim' doesn't have a way to be defined in
> Device Tree, making it unsuitable to test the attachment of UBI in
> this way.
>=20
> However, QEMU does support emulating TI OMAP's OneNAND controller, eg.
> as part of the Nokia N810 hardware supported by qemu-system-arm, see
>=20
> https://www.qemu.org/docs/master/system/arm/nseries.html
>=20
> So we could use that and modify the device tree in Linux to have a MTD
> partition for UBI and 'compatible =3D "linux,ubi";' set therein:
>=20
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/a=
rch/arm/boot/dts/ti/omap/omap2420-n8x0-common.dtsi#n84
>=20
> If you like I can prepare such a test setup.

This would be great!

> Is there a repository for MTD/UBI tests to be run on QEMU which I should
> contribute this to?

UBI tests reside in the mtd-utils repository.
http://git.infradead.org/?p=3Dmtd-utils.git;a=3Dtree;f=3Dtests/ubi-tests;h=
=3D20fd6a043eeb96a81736dd07885f74e4e0bb0cc0;hb=3DHEAD

Maybe you can provide a small shell script which configures qemu?
It doesn't have to be fancy, just something David or I can use as staring p=
oint.

Thanks,
//richard