diff mbox

[v2,3/3] arm: dts: bcm5301x: Add syscon based reboot in DT

Message ID 1463008750-13902-4-git-send-email-jonmason@broadcom.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jon Mason May 11, 2016, 11:19 p.m. UTC 
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@broadcom.com>
---
 arch/arm/boot/dts/bcm5301x.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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Patch

diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi
index ffc4a9b..d4e1672 100644
--- a/arch/arm/boot/dts/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
@@ -246,6 +246,18 @@ 
 				     "sata2";
 	};
 
+	cru: cru@1800c184 {
+		compatible = "syscon";
+		reg = <0x1800c184 0x4>;
+	};
+
+	reboot@1800c184 {
+		compatible ="syscon-reboot";
+		regmap = <&cru>;
+		offset = <0>;
+		mask = <0x39>;
+	};
+
 	nand: nand@18028000 {
 		compatible = "brcm,nand-iproc", "brcm,brcmnand-v6.1", "brcm,brcmnand";
 		reg = <0x18028000 0x600>, <0x1811a408 0x600>, <0x18028f00 0x20>;