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ARM: dts: koelsch: Enable SCIF_CLK frequency and pins

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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, 75, 110, 1152000, 1500000, 2000000, and
        4000000 bps,
      - Perfect match for standard 50-460800, and 9216000 bps.
      - More accurate 576000 bps.
  - HSCIF:
      - Supports now 50, 75, 110, 134, 150, and 200 bps,
      - Perfect match for standard 50-460800, and 9216000 bps.
      - More accurate 576000, 1152000, 3000000, 3500000, and 4000000
	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>
This commit is contained in:
Geert Uytterhoeven 2016-01-29 11:17:21 +01:00 committed by Simon Horman
parent 81a81ba941
commit 338f7ebf46
1 changed files with 13 additions and 0 deletions
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13
arch/arm/boot/dts/r8a7791-koelsch.dts
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@ -320,6 +320,9 @@
};
&pfc {
pinctrl-0 = <&scif_clk_pins>;
pinctrl-names = "default";
i2c2_pins: i2c2 {
renesas,groups = "i2c2";
renesas,function = "i2c2";
@ -340,6 +343,11 @@
renesas,function = "scif1";
};
scif_clk_pins: scif_clk {
renesas,groups = "scif_clk";
renesas,function = "scif_clk";
};
ether_pins: ether {
renesas,groups = "eth_link", "eth_mdio", "eth_rmii";
renesas,function = "eth";
@ -440,6 +448,11 @@
status = "okay";
};
&scif_clk {
clock-frequency = <14745600>;
status = "okay";
};
&sdhi0 {
pinctrl-0 = <&sdhi0_pins>;
pinctrl-names = "default";