diff mbox series

[v2] ARM: dts: msm8974-FP2: add reboot-mode node

Message ID 20190713154805.17159-1-luca@z3ntu.xyz (mailing list archive)
State New, archived
Headers show
Series [v2] ARM: dts: msm8974-FP2: add reboot-mode node | expand

Commit Message

Luca Weiss July 13, 2019, 3:48 p.m. UTC 
This enables userspace to signal the bootloader to go into the
bootloader or recovery mode.

The magic values can be found in both the downstream kernel and the LK
kernel (bootloader).

Reviewed-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
---
Changes v1 -> v2:
- Move the majority of the node into the board dts, just keep the magic
  values in the device-specific dts.

 arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts | 10 ++++++++++
 arch/arm/boot/dts/qcom-msm8974.dtsi              | 11 +++++++++++
 2 files changed, 21 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts b/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts
index 643c57f84818..ff4a3e0aa746 100644
--- a/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts
@@ -338,6 +338,16 @@ 
 			};
 		};
 	};
+
+	imem@fe805000 {
+		status = "okay";
+
+		reboot-mode {
+			mode-normal	= <0x77665501>;
+			mode-bootloader	= <0x77665500>;
+			mode-recovery	= <0x77665502>;
+		};
+	};
 };
 
 &spmi_bus {
diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom-msm8974.dtsi
index 45b5c8ef0374..1927430bded7 100644
--- a/arch/arm/boot/dts/qcom-msm8974.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
@@ -1085,6 +1085,17 @@ 
 				};
 			};
 		};
+
+		imem@fe805000 {
+			status = "disabled";
+			compatible = "syscon", "simple-mfd";
+			reg = <0xfe805000 0x1000>;
+
+			reboot-mode {
+				compatible = "syscon-reboot-mode";
+				offset = <0x65c>;
+			};
+		};
 	};
 
 	smd {