From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anup Patel Subject: [PATCH 3/6] arm64: dts: Add syscon based reboot in DT for NS2 Date: Fri, 2 Oct 2015 23:24:20 +0530 Message-ID: <1443808463-21120-4-git-send-email-anup.patel@broadcom.com> References: <1443808463-21120-1-git-send-email-anup.patel@broadcom.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1443808463-21120-1-git-send-email-anup.patel@broadcom.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-arm-kernel@lists.infradead.org Cc: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Catalin Marinas , Will Deacon , Ray Jui , Scott Branden , Florian Fainelli , Vikram Prakash , Anup Patel , Pramod KUMAR , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com List-Id: devicetree@vger.kernel.org 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 Reviewed-by: Ray Jui Reviewed-by: Scott Branden --- arch/arm64/boot/dts/broadcom/ns2.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) 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>; -- 1.9.1