| Message ID | 1447981511-29653-5-git-send-email-vz@mleia.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/boot/dts/lpc32xx.dtsi b/arch/arm/boot/dts/lpc32xx.dtsi index c85cf97..a9f2d9a 100644 --- a/arch/arm/boot/dts/lpc32xx.dtsi +++ b/arch/arm/boot/dts/lpc32xx.dtsi @@ -28,6 +28,22 @@ }; }; + clocks { + xtal_32k: xtal_32k { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + clock-output-names = "xtal_32k"; + }; + + xtal: xtal { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <13000000>; + clock-output-names = "xtal"; + }; + }; + ahb { #address-cells = <1>; #size-cells = <1>;
NXP LPC32xx SoC has two external oscillators - one is mandatory and always on 32768 Hz oscillator and one optional 10-20MHz oscillator, which is practically always present on LPC32xx boards, because its presence is needed to supply USB controller clock and by default it supplies ARM and most of the peripheral clocks, LPC32xx User's Manual references it as a main oscillator. The change adds device nodes for both oscillators, frequency of the main oscillator is selected to be 13MHz by default, this variant is found on all LPC32xx reference boards. The device nodes for external oscillators are needed to describe input clocks of LPC32xx clock controller. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> --- arch/arm/boot/dts/lpc32xx.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)