linux-kernel - [PATCH v3 2/4] arm: dt: zynq: Use 'status' property for UART nodes

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Date:	Thu, 13 Jun 2013 09:37:16 -0700
From:	Soren Brinkmann <soren.brinkmann@...inx.com>
To:	Michal Simek <michal.simek@...inx.com>,
	Russell King <linux@....linux.org.uk>,
	Steffen Trumtrar <s.trumtrar@...gutronix.de>
Cc:	Dinh Nguyen <dinguyen@...era.com>,
	Shawn Guo <shawn.guo@...aro.org>,
	Olof Johansson <olof@...om.net>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Soren Brinkmann <soren.brinkmann@...inx.com>
Subject: [PATCH v3 2/4] arm: dt: zynq: Use 'status' property for UART nodes

Set the default status for UARTs to disabled in the zynq-7000.dtsi file
and let board dts files enable the UARTs on demand.

Signed-off-by: Soren Brinkmann <soren.brinkmann@...inx.com>
---
 arch/arm/boot/dts/zynq-7000.dtsi | 2 ++
 arch/arm/boot/dts/zynq-zc702.dts | 6 +++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi
index 0dbee2c..6f54a64 100644
--- a/arch/arm/boot/dts/zynq-7000.dtsi
+++ b/arch/arm/boot/dts/zynq-7000.dtsi
@@ -49,6 +49,7 @@
 
 		uart0: uart@...00000 {
 			compatible = "xlnx,xuartps";
+			status = "disabled";
 			clocks = <&clkc 23>, <&clkc 40>;
 			clock-names = "ref_clk", "aper_clk";
 			reg = <0xE0000000 0x1000>;
@@ -57,6 +58,7 @@
 
 		uart1: uart@...01000 {
 			compatible = "xlnx,xuartps";
+			status = "disabled";
 			clocks = <&clkc 24>, <&clkc 41>;
 			clock-names = "ref_clk", "aper_clk";
 			reg = <0xE0001000 0x1000>;
diff --git a/arch/arm/boot/dts/zynq-zc702.dts b/arch/arm/boot/dts/zynq-zc702.dts
index e25a307..21aea99 100644
--- a/arch/arm/boot/dts/zynq-zc702.dts
+++ b/arch/arm/boot/dts/zynq-zc702.dts
@@ -24,7 +24,11 @@
 	};
 
 	chosen {
-		bootargs = "console=ttyPS1,115200 earlyprintk";
+		bootargs = "console=ttyPS0,115200 earlyprintk";
 	};
 
 };
+
+&uart1 {
+	status = "okay";
+};
-- 
1.8.3

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