| Allwinner Clock Control Unit Binding |
| ------------------------------------ |
| |
| Required properties : |
| - compatible: must contain one of the following compatibles: |
| - "allwinner,sun4i-a10-ccu" |
| - "allwinner,sun5i-a10s-ccu" |
| - "allwinner,sun5i-a13-ccu" |
| - "allwinner,sun6i-a31-ccu" |
| - "allwinner,sun7i-a20-ccu" |
| - "allwinner,sun8i-a23-ccu" |
| - "allwinner,sun8i-a33-ccu" |
| - "allwinner,sun8i-a83t-ccu" |
| - "allwinner,sun8i-a83t-r-ccu" |
| - "allwinner,sun8i-h3-ccu" |
| - "allwinner,sun8i-h3-r-ccu" |
| + - "allwinner,sun8i-r40-ccu" |
| - "allwinner,sun8i-v3s-ccu" |
| - "allwinner,sun9i-a80-ccu" |
| - "allwinner,sun50i-a64-ccu" |
| - "allwinner,sun50i-a64-r-ccu" |
| - "allwinner,sun50i-h5-ccu" |
| - "nextthing,gr8-ccu" |
| |
| - reg: Must contain the registers base address and length |
| - clocks: phandle to the oscillators feeding the CCU. Two are needed: |
| - "hosc": the high frequency oscillator (usually at 24MHz) |
| - "losc": the low frequency oscillator (usually at 32kHz) |
| On the A83T, this is the internal 16MHz oscillator divided by 512 |
| - clock-names: Must contain the clock names described just above |
| - #clock-cells : must contain 1 |
| - #reset-cells : must contain 1 |
| |
| For the PRCM CCUs on A83T/H3/A64, two more clocks are needed: |
| - "pll-periph": the SoC's peripheral PLL from the main CCU |
| - "iosc": the SoC's internal frequency oscillator |
| |
| Example for generic CCU: |
| ccu: clock@01c20000 { |
| compatible = "allwinner,sun8i-h3-ccu"; |
| reg = <0x01c20000 0x400>; |
| clocks = <&osc24M>, <&osc32k>; |
| clock-names = "hosc", "losc"; |
| #clock-cells = <1>; |
| #reset-cells = <1>; |
| }; |
| |
| Example for PRCM CCU: |
| r_ccu: clock@01f01400 { |
| compatible = "allwinner,sun50i-a64-r-ccu"; |
| reg = <0x01f01400 0x100>; |
| clocks = <&osc24M>, <&osc32k>, <&iosc>, <&ccu CLK_PLL_PERIPH0>; |
| clock-names = "hosc", "losc", "iosc", "pll-periph"; |
| #clock-cells = <1>; |
| #reset-cells = <1>; |
| }; |
