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[3/6] arm64: dts: Add syscon based reboot in DT for NS2

Message ID 1443808463-21120-4-git-send-email-anup.patel@broadcom.com (mailing list archive)
State New, archived
Headers show

Commit Message

Anup Patel Oct. 2, 2015, 5:54 p.m. UTC 
To reset NS2, we simply have to write '0' to BIT[1] at offset 0x90
of CRMU space.

The above can be easily achieved by writing 0xfffffffd at offset 0x90
using syscon-reboot driver. We don't need to have separate driver for
rebooting NS2.

This patch enables syscon-reboot driver for NS2 using DT.

Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
---
 arch/arm64/boot/dts/broadcom/ns2.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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Patch

diff --git a/arch/arm64/boot/dts/broadcom/ns2.dtsi b/arch/arm64/boot/dts/broadcom/ns2.dtsi
index c5d90e4..5d2ac6b 100644
--- a/arch/arm64/boot/dts/broadcom/ns2.dtsi
+++ b/arch/arm64/boot/dts/broadcom/ns2.dtsi
@@ -144,6 +144,18 @@ 
 			mmu-masters;
 		};
 
+		crmu: crmu@65024000 {
+			compatible = "syscon";
+			reg = <0x65024000 0x100>;
+		};
+
+		reboot@65024000 {
+			compatible ="syscon-reboot";
+			regmap = <&crmu>;
+			offset = <0x90>;
+			mask = <0xfffffffd>;
+		};
+
 		gic: interrupt-controller@65210000 {
 			compatible = "arm,gic-400";
 			#interrupt-cells = <3>;