1 Freescale i.MX General Power Controller
2 =======================================
4 The i.MX6Q General Power Control (GPC) block contains DVFS load tracking
5 counters and Power Gating Control (PGC) for the CPU and PU (GPU/VPU) power
9 - compatible: Should be "fsl,imx6q-gpc" or "fsl,imx6sl-gpc"
10 - reg: should be register base and length as documented in the
12 - interrupts: Should contain GPC interrupt request 1
13 - pu-supply: Link to the LDO regulator powering the PU power domain
14 - clocks: Clock phandles to devices in the PU power domain that need
15 to be enabled during domain power-up for reset propagation.
16 - #power-domain-cells: Should be 1, see below:
18 The gpc node is a power-controller as documented by the generic power domain
19 bindings in Documentation/devicetree/bindings/power/power_domain.txt.
24 compatible = "fsl,imx6q-gpc";
25 reg = <0x020dc000 0x4000>;
26 interrupts = <0 89 IRQ_TYPE_LEVEL_HIGH>,
27 <0 90 IRQ_TYPE_LEVEL_HIGH>;
28 pu-supply = <®_pu>;
29 clocks = <&clks IMX6QDL_CLK_GPU3D_CORE>,
30 <&clks IMX6QDL_CLK_GPU3D_SHADER>,
31 <&clks IMX6QDL_CLK_GPU2D_CORE>,
32 <&clks IMX6QDL_CLK_GPU2D_AXI>,
33 <&clks IMX6QDL_CLK_OPENVG_AXI>,
34 <&clks IMX6QDL_CLK_VPU_AXI>;
35 #power-domain-cells = <1>;
39 Specifying power domain for IP modules
40 ======================================
42 IP cores belonging to a power domain should contain a 'power-domains' property
43 that is a phandle pointing to the gpc device node and a DOMAIN_INDEX specifying
44 the power domain the device belongs to.
46 Example of a device that is part of the PU power domain:
49 reg = <0x02040000 0x3c000>;
51 power-domains = <&gpc 1>;
55 The following DOMAIN_INDEX values are valid for i.MX6Q:
58 The following additional DOMAIN_INDEX value is valid for i.MX6SL: