linux-kernel - [PATCH 04/10] arm64: zynqmp: Add dcc console for zynqmp

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Date:   Thu, 20 Jul 2017 14:17:03 +0200
From:   Michal Simek <michal.simek@...inx.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Sören Brinkmann <soren.brinkmann@...inx.com>,
        Marc Zyngier <marc.zyngier@....com>, monstr@...str.eu,
        "Edgar E. Iglesias" <edgar.iglesias@...inx.com>,
        Punnaiah Choudary Kalluri 
        <punnaiah.choudary.kalluri@...inx.com>,
        Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>,
        linux-kernel@...r.kernel.org,
        Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>,
        devicetree@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Stefan Krsmanovic <stefan.krsmanovic@...ios.com>,
        Will Deacon <will.deacon@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Mark Rutland <mark.rutland@....com>
Subject: [PATCH 04/10] arm64: zynqmp: Add dcc console for zynqmp

Add debug console to dtsi to be able to enable it in
board dts file.
Keep in your mind that every core has separate dcc port in case you want
to run SMP kernel.
DCC is very helpful communication channel for debugging.

Signed-off-by: Michal Simek <michal.simek@...inx.com>
---

 arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index 50636e098724..3657fdbdb552 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -95,6 +95,11 @@
 		};
 	};
 
+	dcc: dcc {
+		compatible = "arm,dcc";
+		status = "disabled";
+	};
+
 	pmu {
 		compatible = "arm,armv8-pmuv3";
 		interrupt-parent = <&gic>;
-- 
1.9.1