[PATCH 2/2] arm: dts: nsp: Add syscon based reboot in DT

Jon Mason jon.mason at broadcom.com
Tue Jun 28 15:10:33 PDT 2016


From: Jon Mason <jonmason at broadcom.com>

Add the ability to reboot via a reset of the processor.  This is
achieved via a write of 0x2f9 to the CRU Reset Register.  Unfortunately,
this only resets the core and not the other IP blocks.  So if possible,
other methods should be used on the individual boards.

Signed-off-by: Jon Mason <jonmason at broadcom.com>
---
 arch/arm/boot/dts/bcm-nsp.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/bcm-nsp.dtsi b/arch/arm/boot/dts/bcm-nsp.dtsi
index 1759e65..d56166b 100644
--- a/arch/arm/boot/dts/bcm-nsp.dtsi
+++ b/arch/arm/boot/dts/bcm-nsp.dtsi
@@ -266,6 +266,18 @@
 			      <0x30028 0x04>,
 			      <0x3f408 0x04>;
 		};
+
+		cru: system-controller at 3f184 {
+			compatible = "brcm,nsp-cru", "syscon";
+			reg = <0x3f184 0x4>;
+		};
+
+		reboot: reboot at 3f184 {
+			compatible ="syscon-reboot";
+			regmap = <&cru>;
+			offset = <0>;
+			mask = <0x2f9>;
+		};
 	};
 
 	pcie0: pcie at 18012000 {
-- 
1.9.1




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