linux-kernel - Re: [PATCH v2 1/2] arm64: tegra: Add reserved-memory node for P3450

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Message-ID: <8ed69b4c-f656-47fa-a247-1c8d94dcc35d@nvidia.com>
Date: Fri, 24 Oct 2025 17:16:19 +0100
From: Jon Hunter <jonathanh@...dia.com>
To: webgeek1234@...il.com, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Thierry Reding <thierry.reding@...il.com>
Cc: devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] arm64: tegra: Add reserved-memory node for P3450


On 04/08/2025 04:14, Aaron Kling via B4 Relay wrote:
> From: Aaron Kling <webgeek1234@...il.com>
> 
> The Tegra210 L4T bootloader ram training will corrupt the in-ram kernel
> dt if no reserved-memory node exists. This prevents said bootloader from
> being able to boot a kernel without this node, unless a chainloaded
> bootloader loads the dt. Add the node to eliminate the requirement for
> extra boot stages.

I test this platform and don't see any problems. I assume that this 
would prevent the board from booting.

What bootloader are you using? Is this from a particular L4T release?

Jon

-- 
nvpublic