1Broadcom BCM2835 CPRMAN clocks 2 3This binding uses the common clock binding: 4 Documentation/devicetree/bindings/clock/clock-bindings.txt 5 6The CPRMAN clock controller generates clocks in the audio power domain 7of the BCM2835. There is a level of PLLs deriving from an external 8oscillator, a level of PLL dividers that produce channels off of the 9few PLLs, and a level of mostly-generic clock generators sourcing from 10the PLL channels. Most other hardware components source from the 11clock generators, but a few (like the ARM or HDMI) will source from 12the PLL dividers directly. 13 14Required properties: 15- compatible: Should be "brcm,bcm2835-cprman" 16- #clock-cells: Should be <1>. The permitted clock-specifier values can be 17 found in include/dt-bindings/clock/bcm2835.h 18- reg: Specifies base physical address and size of the registers 19- clocks: phandles to the parent clocks used as input to the module, in 20 the following order: 21 22 - External oscillator 23 - DSI0 byte clock 24 - DSI0 DDR2 clock 25 - DSI0 DDR clock 26 - DSI1 byte clock 27 - DSI1 DDR2 clock 28 - DSI1 DDR clock 29 30 Only external oscillator is required. The DSI clocks may 31 not be present, in which case their children will be 32 unusable. 33 34Example: 35 36 clk_osc: clock@3 { 37 compatible = "fixed-clock"; 38 reg = <3>; 39 #clock-cells = <0>; 40 clock-output-names = "osc"; 41 clock-frequency = <19200000>; 42 }; 43 44 clocks: cprman@7e101000 { 45 compatible = "brcm,bcm2835-cprman"; 46 #clock-cells = <1>; 47 reg = <0x7e101000 0x2000>; 48 clocks = <&clk_osc>; 49 }; 50 51 i2c0: i2c@7e205000 { 52 compatible = "brcm,bcm2835-i2c"; 53 reg = <0x7e205000 0x1000>; 54 interrupts = <2 21>; 55 clocks = <&clocks BCM2835_CLOCK_VPU>; 56 #address-cells = <1>; 57 #size-cells = <0>; 58 }; 59