70 lines
1.8 KiB
Plaintext
70 lines
1.8 KiB
Plaintext
Lantiq XWAY SoC RCU binding
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===========================
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This binding describes the RCU (reset controller unit) multifunction device,
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where each sub-device has its own set of registers.
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The RCU register range is used for multiple purposes. Mostly one device
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uses one or multiple register exclusively, but for some registers some
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bits are for one driver and some other bits are for a different driver.
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With this patch all accesses to the RCU registers will go through
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syscon.
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-------------------------------------------------------------------------------
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Required properties:
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- compatible : The first and second values must be:
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"lantiq,xrx200-rcu", "simple-mfd", "syscon"
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- reg : The address and length of the system control registers
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-------------------------------------------------------------------------------
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Example of the RCU bindings on a xRX200 SoC:
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rcu0: rcu@203000 {
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compatible = "lantiq,xrx200-rcu", "simple-mfd", "syscon";
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reg = <0x203000 0x100>;
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ranges = <0x0 0x203000 0x100>;
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big-endian;
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reset0: reset-controller@10 {
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compatible = "lantiq,xrx200-reset";
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reg = <0x10 4>, <0x14 4>;
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#reset-cells = <2>;
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};
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reset1: reset-controller@48 {
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compatible = "lantiq,xrx200-reset";
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reg = <0x48 4>, <0x24 4>;
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#reset-cells = <2>;
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};
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usb_phy0: usb2-phy@18 {
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compatible = "lantiq,xrx200-usb2-phy";
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reg = <0x18 4>, <0x38 4>;
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resets = <&reset1 4 4>, <&reset0 4 4>;
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reset-names = "phy", "ctrl";
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#phy-cells = <0>;
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};
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usb_phy1: usb2-phy@34 {
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compatible = "lantiq,xrx200-usb2-phy";
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reg = <0x34 4>, <0x3C 4>;
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resets = <&reset1 5 4>, <&reset0 4 4>;
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reset-names = "phy", "ctrl";
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#phy-cells = <0>;
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};
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reboot@10 {
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compatible = "syscon-reboot";
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reg = <0x10 4>;
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regmap = <&rcu0>;
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offset = <0x10>;
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mask = <0x40000000>;
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};
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};
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