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ARM: dove: add si5351 clock driver to CuBox DT

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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>
This commit is contained in:
Sebastian Hesselbarth 2013-04-30 19:24:35 +02:00 committed by Jason Cooper
parent f722406faa
commit 53e9cb1dcd
1 changed files with 50 additions and 1 deletions
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51
arch/arm/boot/dts/dove-cubox.dts
View file

@ -44,11 +44,60 @@ usb_power: regulator@1 {
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";