linux-kernel - Re: your mail

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Message-ID: <20200813070448.GA499758@builder.lan>
Date:   Thu, 13 Aug 2020 00:04:48 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Konrad Dybcio <konradybcio@...il.com>
Cc:     amit.pundir@...aro.org, agross@...nel.org,
        devicetree@...r.kernel.org, john.stultz@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        robh+dt@...nel.org, sumit.semwal@...aro.org
Subject: Re: your mail

On Thu 06 Aug 15:31 PDT 2020, Konrad Dybcio wrote:

> Subject: Re: [PATCH v4] arm64: dts: qcom: Add support for Xiaomi Poco F1 (Beryllium)
> 
> >// This removed_region is needed to boot the device
> >               // TODO: Find out the user of this reserved memory
> >               removed_region: memory@...00000 {
> 
> This region seems to belong to the Trust Zone. When Linux tries to access it, TZ bites and shuts the device down.
> 

This is in line with what the documentation indicates and then it would
be better to just bump &tz_mem to a size of 0x4900000.

Regards,
Bjorn