1 Device Tree Clock bindings for arch-sunxi
3 This binding uses the common clock binding[1].
5 [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
8 - compatible : shall be one of the following:
9 "allwinner,sun4i-a10-osc-clk" - for a gatable oscillator
10 "allwinner,sun4i-a10-pll1-clk" - for the main PLL clock and PLL4
11 "allwinner,sun6i-a31-pll1-clk" - for the main PLL clock on A31
12 "allwinner,sun8i-a23-pll1-clk" - for the main PLL clock on A23
13 "allwinner,sun9i-a80-pll4-clk" - for the peripheral PLLs on A80
14 "allwinner,sun4i-a10-pll5-clk" - for the PLL5 clock
15 "allwinner,sun4i-a10-pll6-clk" - for the PLL6 clock
16 "allwinner,sun6i-a31-pll6-clk" - for the PLL6 clock on A31
17 "allwinner,sun9i-a80-gt-clk" - for the GT bus clock on A80
18 "allwinner,sun4i-a10-cpu-clk" - for the CPU multiplexer clock
19 "allwinner,sun4i-a10-axi-clk" - for the AXI clock
20 "allwinner,sun8i-a23-axi-clk" - for the AXI clock on A23
21 "allwinner,sun4i-a10-axi-gates-clk" - for the AXI gates
22 "allwinner,sun4i-a10-ahb-clk" - for the AHB clock
23 "allwinner,sun9i-a80-ahb-clk" - for the AHB bus clocks on A80
24 "allwinner,sun4i-a10-ahb-gates-clk" - for the AHB gates on A10
25 "allwinner,sun5i-a13-ahb-gates-clk" - for the AHB gates on A13
26 "allwinner,sun5i-a10s-ahb-gates-clk" - for the AHB gates on A10s
27 "allwinner,sun7i-a20-ahb-gates-clk" - for the AHB gates on A20
28 "allwinner,sun6i-a31-ar100-clk" - for the AR100 on A31
29 "allwinner,sun6i-a31-ahb1-clk" - for the AHB1 clock on A31
30 "allwinner,sun6i-a31-ahb1-gates-clk" - for the AHB1 gates on A31
31 "allwinner,sun8i-a23-ahb1-gates-clk" - for the AHB1 gates on A23
32 "allwinner,sun9i-a80-ahb0-gates-clk" - for the AHB0 gates on A80
33 "allwinner,sun9i-a80-ahb1-gates-clk" - for the AHB1 gates on A80
34 "allwinner,sun9i-a80-ahb2-gates-clk" - for the AHB2 gates on A80
35 "allwinner,sun4i-a10-apb0-clk" - for the APB0 clock
36 "allwinner,sun6i-a31-apb0-clk" - for the APB0 clock on A31
37 "allwinner,sun8i-a23-apb0-clk" - for the APB0 clock on A23
38 "allwinner,sun9i-a80-apb0-clk" - for the APB0 bus clock on A80
39 "allwinner,sun4i-a10-apb0-gates-clk" - for the APB0 gates on A10
40 "allwinner,sun5i-a13-apb0-gates-clk" - for the APB0 gates on A13
41 "allwinner,sun5i-a10s-apb0-gates-clk" - for the APB0 gates on A10s
42 "allwinner,sun6i-a31-apb0-gates-clk" - for the APB0 gates on A31
43 "allwinner,sun7i-a20-apb0-gates-clk" - for the APB0 gates on A20
44 "allwinner,sun8i-a23-apb0-gates-clk" - for the APB0 gates on A23
45 "allwinner,sun9i-a80-apb0-gates-clk" - for the APB0 gates on A80
46 "allwinner,sun4i-a10-apb1-clk" - for the APB1 clock
47 "allwinner,sun9i-a80-apb1-clk" - for the APB1 bus clock on A80
48 "allwinner,sun4i-a10-apb1-gates-clk" - for the APB1 gates on A10
49 "allwinner,sun5i-a13-apb1-gates-clk" - for the APB1 gates on A13
50 "allwinner,sun5i-a10s-apb1-gates-clk" - for the APB1 gates on A10s
51 "allwinner,sun6i-a31-apb1-gates-clk" - for the APB1 gates on A31
52 "allwinner,sun7i-a20-apb1-gates-clk" - for the APB1 gates on A20
53 "allwinner,sun8i-a23-apb1-gates-clk" - for the APB1 gates on A23
54 "allwinner,sun9i-a80-apb1-gates-clk" - for the APB1 gates on A80
55 "allwinner,sun6i-a31-apb2-gates-clk" - for the APB2 gates on A31
56 "allwinner,sun8i-a23-apb2-gates-clk" - for the APB2 gates on A23
57 "allwinner,sun5i-a13-mbus-clk" - for the MBUS clock on A13
58 "allwinner,sun4i-a10-mmc-clk" - for the MMC clock
59 "allwinner,sun9i-a80-mmc-clk" - for mmc module clocks on A80
60 "allwinner,sun4i-a10-mod0-clk" - for the module 0 family of clocks
61 "allwinner,sun9i-a80-mod0-clk" - for module 0 (storage) clocks on A80
62 "allwinner,sun8i-a23-mbus-clk" - for the MBUS clock on A23
63 "allwinner,sun7i-a20-out-clk" - for the external output clocks
64 "allwinner,sun7i-a20-gmac-clk" - for the GMAC clock module on A20/A31
65 "allwinner,sun4i-a10-usb-clk" - for usb gates + resets on A10 / A20
66 "allwinner,sun5i-a13-usb-clk" - for usb gates + resets on A13
67 "allwinner,sun6i-a31-usb-clk" - for usb gates + resets on A31
69 Required properties for all clocks:
70 - reg : shall be the control register address for the clock.
71 - clocks : shall be the input parent clock(s) phandle for the clock. For
72 multiplexed clocks, the list order must match the hardware
74 - #clock-cells : from common clock binding; shall be set to 0 except for
75 the following compatibles where it shall be set to 1:
76 "allwinner,*-gates-clk", "allwinner,sun4i-pll5-clk",
77 "allwinner,sun4i-pll6-clk", "allwinner,sun6i-a31-pll6-clk",
78 "allwinner,*-usb-clk", "allwinner,*-mmc-clk"
79 - clock-output-names : shall be the corresponding names of the outputs.
80 If the clock module only has one output, the name shall be the
83 And "allwinner,*-usb-clk" clocks also require:
84 - reset-cells : shall be set to 1
86 For "allwinner,sun7i-a20-gmac-clk", the parent clocks shall be fixed rate
87 dummy clocks at 25 MHz and 125 MHz, respectively. See example.
89 Clock consumers should specify the desired clocks they use with a
90 "clocks" phandle cell. Consumers that are using a gated clock should
91 provide an additional ID in their clock property. This ID is the
92 offset of the bit controlling this particular gate in the register.
93 For the other clocks with "#clock-cells" = 1, the additional ID shall
94 refer to the index of the output.
96 For "allwinner,sun6i-a31-pll6-clk", there are 2 outputs. The first output
97 is the normal PLL6 output, or "pll6". The second output is rate doubled
100 The "allwinner,*-mmc-clk" clocks have three different outputs: the
101 main clock, with the ID 0, and the output and sample clocks, with the
102 IDs 1 and 2, respectively.
106 osc24M: clk@01c20050 {
108 compatible = "allwinner,sun4i-a10-osc-clk";
109 reg = <0x01c20050 0x4>;
110 clocks = <&osc24M_fixed>;
111 clock-output-names = "osc24M";
116 compatible = "allwinner,sun4i-a10-pll1-clk";
117 reg = <0x01c20000 0x4>;
119 clock-output-names = "pll1";
124 compatible = "allwinner,sun4i-pll5-clk";
125 reg = <0x01c20020 0x4>;
127 clock-output-names = "pll5_ddr", "pll5_other";
132 compatible = "allwinner,sun6i-a31-pll6-clk";
133 reg = <0x01c20028 0x4>;
135 clock-output-names = "pll6", "pll6x2";
140 compatible = "allwinner,sun4i-a10-cpu-clk";
141 reg = <0x01c20054 0x4>;
142 clocks = <&osc32k>, <&osc24M>, <&pll1>;
143 clock-output-names = "cpu";
146 mmc0_clk: clk@01c20088 {
148 compatible = "allwinner,sun4i-a10-mmc-clk";
149 reg = <0x01c20088 0x4>;
150 clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
151 clock-output-names = "mmc0", "mmc0_output", "mmc0_sample";
154 mii_phy_tx_clk: clk@2 {
156 compatible = "fixed-clock";
157 clock-frequency = <25000000>;
158 clock-output-names = "mii_phy_tx";
161 gmac_int_tx_clk: clk@3 {
163 compatible = "fixed-clock";
164 clock-frequency = <125000000>;
165 clock-output-names = "gmac_int_tx";
168 gmac_clk: clk@01c20164 {
170 compatible = "allwinner,sun7i-a20-gmac-clk";
171 reg = <0x01c20164 0x4>;
173 * The first clock must be fixed at 25MHz;
174 * the second clock must be fixed at 125MHz
176 clocks = <&mii_phy_tx_clk>, <&gmac_int_tx_clk>;
177 clock-output-names = "gmac";