linux-kernel - [PATCH 2/2] arm64: dts: qcom: x1e80100: describe tcsr download mode register

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241002100122.18809-3-johan+linaro@kernel.org>
Date: Wed,  2 Oct 2024 12:01:22 +0200
From: Johan Hovold <johan+linaro@...nel.org>
To: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>
Cc: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Mukesh Ojha <quic_mojha@...cinc.com>,
	linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Johan Hovold <johan+linaro@...nel.org>
Subject: [PATCH 2/2] arm64: dts: qcom: x1e80100: describe tcsr download mode register

Describe the TCSR download mode register to enable download mode
control.

This specifically allows the OS to disable download mode in case the
boot firmware has left it enabled to avoid entering the crash dump mode
after a hypervisor reset by default.

Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
---
 arch/arm64/boot/dts/qcom/x1e80100.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
index 7241bf0b1fa2..359156161a26 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
@@ -310,6 +310,7 @@ scm: scm {
 			compatible = "qcom,scm-x1e80100", "qcom,scm";
 			interconnects = <&aggre2_noc MASTER_CRYPTO QCOM_ICC_TAG_ALWAYS
 					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
+			qcom,dload-mode = <&tcsr 0x19000>;
 		};
 
 		scmi {
-- 
2.45.2