mirror of https://gitee.com/openkylin/linux.git
47 lines
1.6 KiB
Plaintext
47 lines
1.6 KiB
Plaintext
SP810 System Controller
|
|
-----------------------
|
|
|
|
Required properties:
|
|
|
|
- compatible: standard compatible string for a Primecell peripheral,
|
|
see Documentation/devicetree/bindings/arm/primecell.txt
|
|
for more details
|
|
should be: "arm,sp810", "arm,primecell"
|
|
|
|
- reg: standard registers property, physical address and size
|
|
of the control registers
|
|
|
|
- clock-names: from the common clock bindings, for more details see
|
|
Documentation/devicetree/bindings/clock/clock-bindings.txt;
|
|
should be: "refclk", "timclk", "apb_pclk"
|
|
|
|
- clocks: from the common clock bindings, phandle and clock
|
|
specifier pairs for the entries of clock-names property
|
|
|
|
- #clock-cells: from the common clock bindings;
|
|
should be: <1>
|
|
|
|
- clock-output-names: from the common clock bindings;
|
|
should be: "timerclken0", "timerclken1", "timerclken2", "timerclken3"
|
|
|
|
- assigned-clocks: from the common clock binding;
|
|
should be: clock specifier for each output clock of this
|
|
provider node
|
|
|
|
- assigned-clock-parents: from the common clock binding;
|
|
should be: phandle of input clock listed in clocks
|
|
property with the highest frequency
|
|
|
|
Example:
|
|
v2m_sysctl: sysctl@20000 {
|
|
compatible = "arm,sp810", "arm,primecell";
|
|
reg = <0x020000 0x1000>;
|
|
clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&smbclk>;
|
|
clock-names = "refclk", "timclk", "apb_pclk";
|
|
#clock-cells = <1>;
|
|
clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3";
|
|
assigned-clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>, <&v2m_sysctl 3>, <&v2m_sysctl 3>;
|
|
assigned-clock-parents = <&v2m_refclk1mhz>, <&v2m_refclk1mhz>, <&v2m_refclk1mhz>, <&v2m_refclk1mhz>;
|
|
|
|
};
|