Thread (29 messages) 29 messages, 7 authors, 2014-09-06

Re: [PATCH 5/7] ARM: meson: dts: add basic Meson/Meson6/Meson6-atv1200 DTSI/DTS

From: Carlo Caione <hidden>
Date: 2014-08-19 16:16:52
Also in: linux-arm-kernel, linux-serial

On Mon, Aug 18, 2014 at 05:17:44PM +0100, Mark Rutland wrote:
On Sun, Aug 17, 2014 at 11:49:52AM +0100, Carlo Caione wrote:
<cut>
quoted
+	soc@c8100000 {
What's the unit-address for? This node doesn't have a reg or compatible.
I used it to indicate the starting address of the memory mapped region.
quoted
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		uart_AO: serial@c81004c0 {
+			compatible = "amlogic,meson-uart";
+			reg = <0xc81004c0 0x14>;
+			interrupts = <0 90 1>;
+			clocks = <&clk81>;
+			status = "disabled";
+		};
+
+		uart_A: serial@c81084c0 {
+			compatible = "amlogic,meson-uart";
+			reg = <0xc81084c0 0x14>;
+			interrupts = <0 90 1>;
+			clocks = <&clk81>;
+			status = "disabled";
+		};
+
+		uart_B: serial@c81084dc {
+			compatible = "amlogic,meson-uart";
+			reg = <0xc81084dc 0x14>;
+			interrupts = <0 90 1>;
+			clocks = <&clk81>;
+			status = "disabled";
+		};
+
+		uart_C: serial@c8108700 {
+			compatible = "amlogic,meson-uart";
+			reg = <0xc8108700 0x14>;
+			interrupts = <0 90 1>;
+			clocks = <&clk81>;
+			status = "disabled";
I guess these are disabled because they aren't always wired up?
Yes

<cut>
quoted
+	clocks {
+		#address-cells = <1>;
+
+		clk81: clk@0 {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <200000000>;
+		};
+	};
There is really no need to put clocks in a container.

Just put them under the root, and drop the unit-address.
I'll do, thanks.

-- 
Carlo Caione
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