kopia lustrzana https://github.com/cariboulabs/cariboulite
47 wiersze
1.0 KiB
Plaintext
47 wiersze
1.0 KiB
Plaintext
// Description: Overlay to enable character device interface for SMI.
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// Original Author: Luke Wren <luke@raspberrypi.org>
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// Adaptation to CaribouLite: David Michaeli (cariboulabs.co@gmail.com)
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/dts-v1/;
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/plugin/;
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/{
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compatible = "brcm,bcm2835";
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fragment@0 {
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target = <&soc>;
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__overlay__ {
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smi_dev {
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compatible = "brcm,bcm2835-smi-dev";
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smi_handle = <&smi>;
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status = "okay";
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};
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};
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};
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fragment@1 {
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target = <&smi>;
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__overlay__ {
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pinctrl-names = "default";
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pinctrl-0 = <&smi_pins>;
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status = "okay";
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/* assigned-clock-rates = <500000000>; */
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};
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};
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fragment@2 {
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target = <&gpio>;
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__overlay__ {
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smi_pins: smi_pins {
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/* Don't configure the top two address bits, as these are already used as ID_SD and ID_SC */
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brcm,pins = <2 3 6 7 8 9 10 11 12 13 14 15 24 25>;
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brcm,function = <5 5 5 5 5 5 5 5 5 5 5 5 5 5>;
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/* /CS, /WE and /OE are pulled high, as they are generally active low signals */
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brcm,pull = <2 2 2 2 0 0 0 0 0 0 0 0 0 0>;
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};
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};
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};
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};
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