[PATCH 1/2] arm: dts: bcm5301x: Add syscon based reboot in DT

Jon Mason jon.mason at broadcom.com
Tue Jun 28 15:10:32 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 0x39 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/bcm5301x.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi
index 7d4d29b..f878d0d 100644
--- a/arch/arm/boot/dts/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
@@ -260,6 +260,18 @@
 				     "sata2";
 	};
 
+	cru: system-controller at 1800c184 {
+		compatible = "brcm,bcm53010-cru", "syscon";
+		reg = <0x1800c184 0x4>;
+	};
+
+	reboot at 1800c184 {
+		compatible ="syscon-reboot";
+		regmap = <&cru>;
+		offset = <0>;
+		mask = <0x39>;
+	};
+
 	nand: nand at 18028000 {
 		compatible = "brcm,nand-iproc", "brcm,brcmnand-v6.1", "brcm,brcmnand";
 		reg = <0x18028000 0x600>, <0x1811a408 0x600>, <0x18028f00 0x20>;
-- 
1.9.1




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