forked from Qortal/Brooklyn
44 lines
796 B
Plaintext
44 lines
796 B
Plaintext
/dts-v1/;
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/plugin/;
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#include <dt-bindings/clock/bcm2835-aux.h>
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/*
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* Fake a higher clock rate to get a larger divisor, and thereby a lower
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* baudrate. The real clock is 48MHz, which we scale so that requesting
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* 38.4kHz results in an actual 31.25kHz.
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*
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* 48000000*38400/31250 = 58982400
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*/
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/{
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compatible = "brcm,bcm2835";
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fragment@0 {
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target-path = "/clocks";
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__overlay__ {
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midi_clk: clock@5 {
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compatible = "fixed-factor-clock";
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#clock-cells = <0>;
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clocks = <&aux BCM2835_AUX_CLOCK_UART>;
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clock-mult = <38400>;
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clock-div = <31250>;
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};
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};
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};
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fragment@1 {
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target = <&uart1>;
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__overlay__ {
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clocks = <&midi_clk>;
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};
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};
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fragment@2 {
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target = <&aux>;
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__overlay__ {
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clock-output-names = "aux_uart", "aux_spi1", "aux_spi2";
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};
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};
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};
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