brcm,bcm2835-cprman.txt 1.4 KB

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  1. Broadcom BCM2835 CPRMAN clocks
  2. This binding uses the common clock binding:
  3. Documentation/devicetree/bindings/clock/clock-bindings.txt
  4. The CPRMAN clock controller generates clocks in the audio power domain
  5. of the BCM2835. There is a level of PLLs deriving from an external
  6. oscillator, a level of PLL dividers that produce channels off of the
  7. few PLLs, and a level of mostly-generic clock generators sourcing from
  8. the PLL channels. Most other hardware components source from the
  9. clock generators, but a few (like the ARM or HDMI) will source from
  10. the PLL dividers directly.
  11. Required properties:
  12. - compatible: Should be "brcm,bcm2835-cprman"
  13. - #clock-cells: Should be <1>. The permitted clock-specifier values can be
  14. found in include/dt-bindings/clock/bcm2835.h
  15. - reg: Specifies base physical address and size of the registers
  16. - clocks: The external oscillator clock phandle
  17. Example:
  18. clk_osc: clock@3 {
  19. compatible = "fixed-clock";
  20. reg = <3>;
  21. #clock-cells = <0>;
  22. clock-output-names = "osc";
  23. clock-frequency = <19200000>;
  24. };
  25. clocks: cprman@7e101000 {
  26. compatible = "brcm,bcm2835-cprman";
  27. #clock-cells = <1>;
  28. reg = <0x7e101000 0x2000>;
  29. clocks = <&clk_osc>;
  30. };
  31. i2c0: i2c@7e205000 {
  32. compatible = "brcm,bcm2835-i2c";
  33. reg = <0x7e205000 0x1000>;
  34. interrupts = <2 21>;
  35. clocks = <&clocks BCM2835_CLOCK_VPU>;
  36. #address-cells = <1>;
  37. #size-cells = <0>;
  38. };