From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Kathiravan Thirumoorthy
<kathiravan.thirumoorthy@oss.qualcomm.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Vignesh Viswanathan <quic_viswanat@quicinc.com>
Subject: Re: [PATCH] arm64: dts: qcom: ipq5424: Add reserved memory for TF-A
Date: Tue, 24 Jun 2025 15:27:31 +0200 [thread overview]
Message-ID: <0826de9f-0125-44d9-84cd-1c52ba199a4a@oss.qualcomm.com> (raw)
In-Reply-To: <20250624-atf-reserved-mem-v1-1-43b1940e2853@oss.qualcomm.com>
On 6/24/25 12:36 PM, Kathiravan Thirumoorthy wrote:
> From: Vignesh Viswanathan <quic_viswanat@quicinc.com>
>
> IPQ5424 supports both TZ and TF-A as secure software options and various
> DDR sizes. In most cases, TF-A or TZ is loaded at the same memory
> location, but in the 256MB DDR configuration TF-A is loaded at a different
> region.
>
> So, add the reserved memory node for TF-A and keep it disabled by default.
> During bootup, U-Boot will detect which secure software is running and
> enable or disable the node accordingly.
>
> Signed-off-by: Vignesh Viswanathan <quic_viswanat@quicinc.com>
> Signed-off-by: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@oss.qualcomm.com>
> ---
Can the said u-boot simply dynamically add the reservation then?
Konrad
next prev parent reply other threads:[~2025-06-24 13:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-24 10:36 Kathiravan Thirumoorthy
2025-06-24 13:27 ` Konrad Dybcio [this message]
2025-06-25 4:50 ` Kathiravan Thirumoorthy
2025-07-23 7:04 ` Kathiravan Thirumoorthy
2025-08-05 13:22 ` Konrad Dybcio
2025-08-07 10:33 ` Kathiravan Thirumoorthy
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