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The BCM2835 has 3 identical I2C controllers. Instantiate them all in the SoC .dtsi file, and enable the relevant two in the Raspberry Pi board .dts file. Note that on the Raspberry Pi Model B revision 1, I2C0 is connected to the general-purpose expansion header, and I2C1 is connected to the camera connector. Revision 2 of the board swaps these assignments:-( Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
42 lines
599 B
Plaintext
42 lines
599 B
Plaintext
/dts-v1/;
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/include/ "bcm2835.dtsi"
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/ {
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compatible = "raspberrypi,model-b", "brcm,bcm2835";
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model = "Raspberry Pi Model B";
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memory {
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reg = <0 0x10000000>;
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};
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};
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&gpio {
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pinctrl-names = "default";
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pinctrl-0 = <&alt0 &alt3>;
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alt0: alt0 {
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brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11 14 15 40 45>;
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brcm,function = <4>; /* alt0 */
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};
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alt3: alt3 {
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brcm,pins = <48 49 50 51 52 53>;
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brcm,function = <7>; /* alt3 */
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};
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};
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&i2c0 {
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status = "okay";
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clock-frequency = <100000>;
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};
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&i2c1 {
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status = "okay";
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clock-frequency = <100000>;
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};
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&sdhci {
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status = "okay";
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bus-width = <4>;
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};
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