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authorSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>2013-04-30 21:24:35 +0400
committerJason Cooper <jason@lakedaemon.net>2013-05-14 00:14:56 +0400
commit53e9cb1dcde882cc667497328eca776a9835f965 (patch)
tree64b2f14b7ce81e9fd7fb6292b78fbda544eb4b33 /arch/arm/boot/dts/dove-cubox.dts
parentf722406faae2d073cc1d01063d1123c35425939e (diff)
downloadlinux-53e9cb1dcde882cc667497328eca776a9835f965.tar.xz
ARM: dove: add si5351 clock driver to CuBox DT
This patch adds the device tree node for si5351 clock generator and the corresponding oscillator connected to it. It also limits i2c frequency to 100kHz as there are bus locks reported on higher frequencies. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'arch/arm/boot/dts/dove-cubox.dts')
-rw-r--r--arch/arm/boot/dts/dove-cubox.dts51
1 files changed, 50 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/dove-cubox.dts b/arch/arm/boot/dts/dove-cubox.dts
index 7e3065abd751..5cae2ab69762 100644
--- a/arch/arm/boot/dts/dove-cubox.dts
+++ b/arch/arm/boot/dts/dove-cubox.dts
@@ -44,11 +44,60 @@
gpio = <&gpio0 1 0>;
};
};
+
+ clocks {
+ /* 25MHz reference crystal */
+ ref25: oscillator {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ };
+ };
};
&uart0 { status = "okay"; };
&sata0 { status = "okay"; };
-&i2c0 { status = "okay"; };
+
+&i2c0 {
+ status = "okay";
+ clock-frequency = <100000>;
+
+ si5351: clock-generator {
+ compatible = "silabs,si5351a-msop";
+ reg = <0x60>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #clock-cells = <1>;
+
+ /* connect xtal input to 25MHz reference */
+ clocks = <&ref25>;
+
+ /* connect xtal input as source of pll0 and pll1 */
+ silabs,pll-source = <0 0>, <1 0>;
+
+ clkout0 {
+ reg = <0>;
+ silabs,drive-strength = <8>;
+ silabs,multisynth-source = <0>;
+ silabs,clock-source = <0>;
+ silabs,pll-master;
+ };
+
+ clkout1 {
+ reg = <1>;
+ silabs,drive-strength = <8>;
+ silabs,multisynth-source = <1>;
+ silabs,clock-source = <0>;
+ silabs,pll-master;
+ };
+
+ clkout2 {
+ reg = <2>;
+ silabs,multisynth-source = <1>;
+ silabs,clock-source = <0>;
+ };
+ };
+};
&sdio0 {
status = "okay";