ARM: dts: bockw: 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.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7778-bockw.dts b/arch/arm/boot/dts/r8a7778-bockw.dts
index a52b359..21e3b9d 100644 (file)
--- a/arch/arm/boot/dts/r8a7778-bockw.dts
+++ b/arch/arm/boot/dts/r8a7778-bockw.dts
@@ -126,11 +126,19 @@
 };
 
 &pfc {
+       pinctrl-0 = <&scif_clk_pins>;
+       pinctrl-names = "default";
+
        scif0_pins: serial0 {
                renesas,groups = "scif0_data_a", "scif0_ctrl";
                renesas,function = "scif0";
        };
 
+       scif_clk_pins: scif_clk {
+               renesas,groups = "scif_clk";
+               renesas,function = "scif_clk";
+       };
+
        mmc_pins: mmc {
                renesas,groups = "mmc_data8", "mmc_ctrl";
                renesas,function = "mmc";
@@ -217,3 +225,8 @@
 
        status = "okay";
 };
+
+&scif_clk {
+       clock-frequency = <14745600>;
+       status = "okay";
+};