GNU Linux-libre 4.14.266-gnu1
[releases.git] / Documentation / devicetree / bindings / clock / brcm,bcm2835-aux-clock.txt
1 Broadcom BCM2835 auxiliary peripheral support
2
3 This binding uses the common clock binding:
4     Documentation/devicetree/bindings/clock/clock-bindings.txt
5
6 The auxiliary peripherals (UART, SPI1, and SPI2) have a small register
7 area controlling clock gating to the peripherals, and providing an IRQ
8 status register.
9
10 Required 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
17 Example:
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@0x7e215004 {
27                 compatible = "brcm,bcm2835-aux";
28                 #clock-cells = <1>;
29                 reg = <0x7e215000 0x8>;
30                 clocks = <&clocks BCM2835_CLOCK_VPU>;
31         };