Commit a3fc85e2 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Simon Horman

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: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent 3da41e4c
...@@ -93,6 +93,9 @@ &extal_clk { ...@@ -93,6 +93,9 @@ &extal_clk {
}; };
&pfc { &pfc {
pinctrl-0 = <&scif_clk_pins>;
pinctrl-names = "default";
scif1_pins: scif1 { scif1_pins: scif1 {
renesas,groups = "scif1_data_a", "scif1_ctrl"; renesas,groups = "scif1_data_a", "scif1_ctrl";
renesas,function = "scif1"; renesas,function = "scif1";
...@@ -101,6 +104,10 @@ scif2_pins: scif2 { ...@@ -101,6 +104,10 @@ scif2_pins: scif2 {
renesas,groups = "scif2_data_a"; renesas,groups = "scif2_data_a";
renesas,function = "scif2"; renesas,function = "scif2";
}; };
scif_clk_pins: scif_clk {
renesas,groups = "scif_clk_a";
renesas,function = "scif_clk";
};
i2c2_pins: i2c2 { i2c2_pins: i2c2 {
renesas,groups = "i2c2_a"; renesas,groups = "i2c2_a";
...@@ -138,6 +145,11 @@ &scif2 { ...@@ -138,6 +145,11 @@ &scif2 {
status = "okay"; status = "okay";
}; };
&scif_clk {
clock-frequency = <14745600>;
status = "okay";
};
&i2c2 { &i2c2 {
pinctrl-0 = <&i2c2_pins>; pinctrl-0 = <&i2c2_pins>;
pinctrl-names = "default"; pinctrl-names = "default";
......
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