Documentation/devicetree/bindings/arm/sp810.txt

   1 SP810 System Controller
   2 -----------------------
   3
   4 Required properties:
   5
   6 - compatible:   standard compatible string for a Primecell peripheral,
   7                 see Documentation/devicetree/bindings/arm/primecell.yaml
   8                 for more details
   9                 should be: "arm,sp810", "arm,primecell"
  10
  11 - reg:          standard registers property, physical address and size
  12                 of the control registers
  13
  14 - clock-names:  from the common clock bindings, for more details see
  15                 Documentation/devicetree/bindings/clock/clock-bindings.txt;
  16                 should be: "refclk", "timclk", "apb_pclk"
  17
  18 - clocks:       from the common clock bindings, phandle and clock
  19                 specifier pairs for the entries of clock-names property
  20
  21 - #clock-cells: from the common clock bindings;
  22                 should be: <1>
  23
  24 - clock-output-names: from the common clock bindings;
  25                 should be: "timerclken0", "timerclken1", "timerclken2", "timerclken3"
  26
  27 - assigned-clocks: from the common clock binding;
  28                 should be: clock specifier for each output clock of this
  29                 provider node
  30
  31 - assigned-clock-parents: from the common clock binding;
  32                 should be: phandle of input clock listed in clocks
  33                 property with the highest frequency
  34
  35 Example:
  36         v2m_sysctl: sysctl@20000 {
  37                 compatible = "arm,sp810", "arm,primecell";
  38                 reg = <0x020000 0x1000>;
  39                 clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&smbclk>;
  40                 clock-names = "refclk", "timclk", "apb_pclk";
  41                 #clock-cells = <1>;
  42                 clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3";
  43                 assigned-clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>, <&v2m_sysctl 3>, <&v2m_sysctl 3>;
  44                 assigned-clock-parents = <&v2m_refclk1mhz>, <&v2m_refclk1mhz>, <&v2m_refclk1mhz>, <&v2m_refclk1mhz>;
  45
  46         };