1. 根目录:
2. Documentation
3. devicetree
4. bindings
5. arm
6. bcm
7. brcm,bcm2835.txt

Broadcom BCM2835 device tree bindings
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Raspberry Pi Model A
Required root node properties:
compatible = "raspberrypi,model-a", "brcm,bcm2835";

Raspberry Pi Model A+
Required root node properties:
compatible = "raspberrypi,model-a-plus", "brcm,bcm2835";

Raspberry Pi Model B
Required root node properties:
compatible = "raspberrypi,model-b", "brcm,bcm2835";

Raspberry Pi Model B (no P5)
early model B with I2C0 rather than I2C1 routed to the expansion header
Required root node properties:
compatible = "raspberrypi,model-b-i2c0", "brcm,bcm2835";

Raspberry Pi Model B rev2
Required root node properties:
compatible = "raspberrypi,model-b-rev2", "brcm,bcm2835";

Raspberry Pi Model B+
Required root node properties:
compatible = "raspberrypi,model-b-plus", "brcm,bcm2835";

Raspberry Pi Compute Module
Required root node properties:
compatible = "raspberrypi,compute-module", "brcm,bcm2835";

Generic BCM2835 board
Required root node properties:
compatible = "brcm,bcm2835";