xref: /freebsd/sys/contrib/device-tree/Bindings/clock/brcm,bcm2835-aux-clock.txt (revision 7ef62cebc2f965b0f640263e179276928885e33d)
1Broadcom BCM2835 auxiliary peripheral support
2
3This binding uses the common clock binding:
4    Documentation/devicetree/bindings/clock/clock-bindings.txt
5
6The auxiliary peripherals (UART, SPI1, and SPI2) have a small register
7area controlling clock gating to the peripherals, and providing an IRQ
8status register.
9
10Required properties:
11- compatible:	Should be "brcm,bcm2835-aux"
12- #clock-cells:	Should be <1>. The permitted clock-specifier values can be
13		  found in include/dt-bindings/clock/bcm2835-aux.h
14- reg:		Specifies base physical address and size of the registers
15- clocks:	The parent clock phandle
16
17Example:
18
19	clocks: cprman@7e101000 {
20		compatible = "brcm,bcm2835-cprman";
21		#clock-cells = <1>;
22		reg = <0x7e101000 0x2000>;
23		clocks = <&clk_osc>;
24	};
25
26	aux: aux@7e215004 {
27		compatible = "brcm,bcm2835-aux";
28		#clock-cells = <1>;
29		reg = <0x7e215000 0x8>;
30		clocks = <&clocks BCM2835_CLOCK_VPU>;
31	};
32