0001 Lantiq XWAY SoC RCU binding
0002 ===========================
0003
0004 This binding describes the RCU (reset controller unit) multifunction device,
0005 where each sub-device has its own set of registers.
0006
0007 The RCU register range is used for multiple purposes. Mostly one device
0008 uses one or multiple register exclusively, but for some registers some
0009 bits are for one driver and some other bits are for a different driver.
0010 With this patch all accesses to the RCU registers will go through
0011 syscon.
0012
0013
0014 -------------------------------------------------------------------------------
0015 Required properties:
0016 - compatible : The first and second values must be:
0017 "lantiq,xrx200-rcu", "simple-mfd", "syscon"
0018 - reg : The address and length of the system control registers
0019
0020
0021 -------------------------------------------------------------------------------
0022 Example of the RCU bindings on a xRX200 SoC:
0023 rcu0: rcu@203000 {
0024 compatible = "lantiq,xrx200-rcu", "simple-mfd", "syscon";
0025 reg = <0x203000 0x100>;
0026 ranges = <0x0 0x203000 0x100>;
0027 big-endian;
0028
0029 reset0: reset-controller@10 {
0030 compatible = "lantiq,xrx200-reset";
0031 reg = <0x10 4>, <0x14 4>;
0032
0033 #reset-cells = <2>;
0034 };
0035
0036 reset1: reset-controller@48 {
0037 compatible = "lantiq,xrx200-reset";
0038 reg = <0x48 4>, <0x24 4>;
0039
0040 #reset-cells = <2>;
0041 };
0042
0043 usb_phy0: usb2-phy@18 {
0044 compatible = "lantiq,xrx200-usb2-phy";
0045 reg = <0x18 4>, <0x38 4>;
0046
0047 resets = <&reset1 4 4>, <&reset0 4 4>;
0048 reset-names = "phy", "ctrl";
0049 #phy-cells = <0>;
0050 };
0051
0052 usb_phy1: usb2-phy@34 {
0053 compatible = "lantiq,xrx200-usb2-phy";
0054 reg = <0x34 4>, <0x3C 4>;
0055
0056 resets = <&reset1 5 4>, <&reset0 4 4>;
0057 reset-names = "phy", "ctrl";
0058 #phy-cells = <0>;
0059 };
0060
0061 reboot@10 {
0062 compatible = "syscon-reboot";
0063 reg = <0x10 4>;
0064
0065 regmap = <&rcu0>;
0066 offset = <0x10>;
0067 mask = <0x40000000>;
0068 };
0069 };
