diff options
Diffstat (limited to 'Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt')
-rw-r--r-- | Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt b/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt deleted file mode 100644 index 6f8744fd301b..000000000000 --- a/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt +++ /dev/null @@ -1,58 +0,0 @@ -* Rockchip RK3126/RK3128 Clock and Reset Unit - -The RK3126/RK3128 clock controller generates and supplies clock to various -controllers within the SoC and also implements a reset controller for SoC -peripherals. - -Required Properties: - -- compatible: should be "rockchip,rk3126-cru" or "rockchip,rk3128-cru" - "rockchip,rk3126-cru" - controller compatible with RK3126 SoC. - "rockchip,rk3128-cru" - controller compatible with RK3128 SoC. -- reg: physical base address of the controller and length of memory mapped - region. -- #clock-cells: should be 1. -- #reset-cells: should be 1. - -Optional Properties: - -- rockchip,grf: phandle to the syscon managing the "general register files" - If missing pll rates are not changeable, due to the missing pll lock status. - -Each clock is assigned an identifier and client nodes can use this identifier -to specify the clock which they consume. All available clocks are defined as -preprocessor macros in the dt-bindings/clock/rk3128-cru.h headers and can be -used in device tree sources. Similar macros exist for the reset sources in -these files. - -External clocks: - -There are several clocks that are generated outside the SoC. It is expected -that they are defined using standard clock bindings with following -clock-output-names: - - "xin24m" - crystal input - required, - - "ext_i2s" - external I2S clock - optional, - - "gmac_clkin" - external GMAC clock - optional - -Example: Clock controller node: - - cru: cru@20000000 { - compatible = "rockchip,rk3128-cru"; - reg = <0x20000000 0x1000>; - rockchip,grf = <&grf>; - - #clock-cells = <1>; - #reset-cells = <1>; - }; - -Example: UART controller node that consumes the clock generated by the clock - controller: - - uart2: serial@20068000 { - compatible = "rockchip,serial"; - reg = <0x20068000 0x100>; - interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>; - clock-frequency = <24000000>; - clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>; - clock-names = "sclk_uart", "pclk_uart"; - }; |