[EXT] Re: [PATCH v2] arm64: errata: Add NXP iMX8QM workaround for A53 Cache coherency issue

[Frank Li]

> -----Original Message-----
> From: Francesco Dolcini <francesco at dolcini.it>
> Sent: Wednesday, December 10, 2025 1:46 AM
> To: Ivan T. Ivanov <iivanov at suse.de>; Frank Li <frank.li at nxp.com>; Jason Liu
> <jason.hui.liu at nxp.com>
> Cc: Catalin Marinas <catalin.marinas at arm.com>; Will Deacon
> <will at kernel.org>; Mark Brown <broonie at kernel.org>; Mark Rutland
> <mark.rutland at arm.com>; Shawn Guo <shawnguo at kernel.org>; Aisheng
> Dong <aisheng.dong at nxp.com>; linux-arm-kernel at lists.infradead.org; dl-
> linux-imx <linux-imx at nxp.com>
> Subject: [EXT] Re: [PATCH v2] arm64: errata: Add NXP iMX8QM workaround
> for A53 Cache coherency issue
> 
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> 
> Hello Ivan,
> 
> On Thu, Apr 20, 2023 at 02:29:52PM +0300, Ivan T. Ivanov wrote:
> > According to NXP errata document[1] i.MX8QuadMax SoC suffers from
> > serious cache coherence issue. It was also mentioned in initial
> > support[2] for imx8qm mek machine.
> 
> Ivan, from what I can see this patch was never merged and there was not any
> follow-up on this. What's the status? Are you planning to work on it?
> 
> Frank, it would be nice to have this issue sorted out in mainline, any
> chance that NXP can help move this forward?

Jason worked the original solution, what's difficult of upstream accept the
Solution?

Frank 

> 
> Francesco