Commit a3fc85e2 authored Jan 29, 2016 by Geert Uytterhoeven Committed by Simon Horman Feb 03, 2016

arm64: dts: salvator-x: Enable SCIF_CLK frequency and pins



Add and enable the external crystal for the SCIF_CLK and its pinctrl, to
be used by the Baud Rate Generator for External Clock (BRG) on (H)SCIF.

This increases the range and accuracy of supported baud rates:
  - SCIF:
      - Supports now 50, 230400, 460800, 500000, and 921600 bps,
      - Perfect match for standard 50-460800, and 9216000 bps.
  - HSCIF:
      - Supports now 50, 75, and 110 bps,
      - Perfect match for standard 50-460800, and 9216000 bps.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

parent 3da41e4c

arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts

+12 −0

Original line number	Diff line number	Diff line
		@@ -93,6 +93,9 @@
		};

		&pfc {
		pinctrl-0 = <&scif_clk_pins>;
		pinctrl-names = "default";

		scif1_pins: scif1 {
		renesas,groups = "scif1_data_a", "scif1_ctrl";
		renesas,function = "scif1";
		@@ -101,6 +104,10 @@
		renesas,groups = "scif2_data_a";
		renesas,function = "scif2";
		};
		scif_clk_pins: scif_clk {
		renesas,groups = "scif_clk_a";
		renesas,function = "scif_clk";
		};

		i2c2_pins: i2c2 {
		renesas,groups = "i2c2_a";
		@@ -138,6 +145,11 @@
		status = "okay";
		};

		&scif_clk {
		clock-frequency = <14745600>;
		status = "okay";
		};

		&i2c2 {
		pinctrl-0 = <&i2c2_pins>;
		pinctrl-names = "default";

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