From: Petr Vorel <petr.vorel@gmail.com>
To: Konrad Dybcio <konradybcio@gmail.com>
Cc: linux-arm-msm@vger.kernel.org,
Alexey Minnekhanov <alexeymin@postmarketos.org>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
devicetree@vger.kernel.org
Subject: Re: [PATCH v2 1/1] arm64: dts: qcom: msm8994-angler: Fix cont_splash_mem
Date: Tue, 22 Jun 2021 20:43:44 +0200 [thread overview]
Message-ID: <YNIvYJpxpuXOr22R@pevik> (raw)
In-Reply-To: <de10e844-b4c1-b3d4-cdd7-1491335285d9@gmail.com>
Hi Konrad,
> Ah yes, I think I know the issue..
> Angler's firmware (probably Huawei's job, but unsure) seems to make IOMMUs (another guesstimate)
> not report where the memory is allocated. If it's an issue only on these boards, I reckon
> it would be better to just add
> "/delete-node/ &cont_splash_mem;"
Makes sense, I'll send v3. I didn't know proper syntax, that's why used
memory@3800000 instead of alias.
> in angler/bullhead DTSI, as other 8992/4 devices seem to not have this issue. But as I've said, bullhead could
> probably work anyway, but if it doesn't, it's probably Google's job after all..
Although bullhead is from LG, it might be affected as well.
Hope somebody with this device test it and send patch if needed.
> P.S
> I did not suggest redefining the node, as the memory@0 is reserved for SoC registers
> and your firmware is just playing tricks on you. Your RAM starts @ 0x80000000.
Thanks for an explanation.
> Konrad
Kind regards,
Petr
prev parent reply other threads:[~2021-06-22 18:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-22 18:10 [PATCH v2 1/1] arm64: dts: qcom: msm8994-angler: Fix cont_splash_mem Petr Vorel
2021-06-22 18:29 ` Konrad Dybcio
2021-06-22 18:43 ` Petr Vorel [this message]
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