linux-kernel - [PATCH 4/5] ARM: dts: qcom: msm8226: Add IMEM node

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Message-Id: <20230519210903.117030-5-matti.lehtimaki@gmail.com>
Date:   Sat, 20 May 2023 00:09:01 +0300
From:   Matti Lehtimäki <matti.lehtimaki@...il.com>
To:     linux-arm-msm@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Matti Lehtimäki <matti.lehtimaki@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 4/5] ARM: dts: qcom: msm8226: Add IMEM node

This is used for example for reboot-mode which enables userspace to
signal the bootloader to go into the bootloader or recovery mode.

Signed-off-by: Matti Lehtimäki <matti.lehtimaki@...il.com>
---
 arch/arm/boot/dts/qcom-msm8226.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-msm8226.dtsi b/arch/arm/boot/dts/qcom-msm8226.dtsi
index 006263373348..3628e48c1ec1 100644
--- a/arch/arm/boot/dts/qcom-msm8226.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8226.dtsi
@@ -646,6 +646,18 @@ smd-edge {
 				label = "lpass";
 			};
 		};
+
+		imem: sram@...05000 {
+			compatible = "qcom,msm8226-imem", "syscon", "simple-mfd";
+			reg = <0xfe805000 0x1000>;
+
+			status = "disabled";
+
+			reboot-mode {
+				compatible = "syscon-reboot-mode";
+				offset = <0x65c>;
+			};
+		};
 	};
 
 	timer {
-- 
2.34.1