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authorGeert Uytterhoeven <geert+renesas@glider.be>2016-01-29 13:17:21 +0300
committerSimon Horman <horms+renesas@verge.net.au>2016-02-09 21:43:26 +0300
commit338f7ebf46e184746e63bcb93b3e5dbee95564a3 (patch)
tree6faa53a81fd73c33e23bdea2d7e43e6320d703ea /arch/arm/boot/dts/r8a7791-koelsch.dts
parent81a81ba9412c2c29309abd8752bcf771c22335a1 (diff)
downloadlinux-338f7ebf46e184746e63bcb93b3e5dbee95564a3.tar.xz
ARM: dts: koelsch: 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, 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>
Diffstat (limited to 'arch/arm/boot/dts/r8a7791-koelsch.dts')
-rw-r--r--arch/arm/boot/dts/r8a7791-koelsch.dts13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
index 45256f3cc835..0ad71b81d3a2 100644
--- a/arch/arm/boot/dts/r8a7791-koelsch.dts
+++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
@@ -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";