projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 2dff4177 SW |
1 | * Power Management Controller |
| 2 | ||
| 3 | Properties: | |
| 4 | - compatible: "fsl,<chip>-pmc". | |
| 5 | ||
| 6 | "fsl,mpc8349-pmc" should be listed for any chip whose PMC is | |
| 7 | compatible. "fsl,mpc8313-pmc" should also be listed for any chip | |
| 8 | whose PMC is compatible, and implies deep-sleep capability. | |
| 9 | ||
| 10 | "fsl,mpc8548-pmc" should be listed for any chip whose PMC is | |
| 11 | compatible. "fsl,mpc8536-pmc" should also be listed for any chip | |
| 12 | whose PMC is compatible, and implies deep-sleep capability. | |
| 13 | ||
| 14 | "fsl,mpc8641d-pmc" should be listed for any chip whose PMC is | |
| 15 | compatible; all statements below that apply to "fsl,mpc8548-pmc" also | |
| 16 | apply to "fsl,mpc8641d-pmc". | |
| 17 | ||
| 19f59460 ML |
18 | Compatibility does not include bit assignments in SCCR/PMCDR/DEVDISR; these |
| 19 | bit assignments are indicated via the sleep specifier in each device's | |
| 2dff4177 SW |
20 | sleep property. |
| 21 | ||
| 22 | - reg: For devices compatible with "fsl,mpc8349-pmc", the first resource | |
| 23 | is the PMC block, and the second resource is the Clock Configuration | |
| 24 | block. | |
| 25 | ||
| 26 | For devices compatible with "fsl,mpc8548-pmc", the first resource | |
| 27 | is a 32-byte block beginning with DEVDISR. | |
| 28 | ||
| 29 | - interrupts: For "fsl,mpc8349-pmc"-compatible devices, the first | |
| 30 | resource is the PMC block interrupt. | |
| 31 | ||
| 32 | - fsl,mpc8313-wakeup-timer: For "fsl,mpc8313-pmc"-compatible devices, | |
| 33 | this is a phandle to an "fsl,gtm" node on which timer 4 can be used as | |
| 34 | a wakeup source from deep sleep. | |
| 35 | ||
| 36 | Sleep specifiers: | |
| 37 | ||
| 38 | fsl,mpc8349-pmc: Sleep specifiers consist of one cell. For each bit | |
| 39 | that is set in the cell, the corresponding bit in SCCR will be saved | |
| 40 | and cleared on suspend, and restored on resume. This sleep controller | |
| 41 | supports disabling and resuming devices at any time. | |
| 42 | ||
| 43 | fsl,mpc8536-pmc: Sleep specifiers consist of three cells, the third of | |
| 44 | which will be ORed into PMCDR upon suspend, and cleared from PMCDR | |
| 45 | upon resume. The first two cells are as described for fsl,mpc8578-pmc. | |
| 46 | This sleep controller only supports disabling devices during system | |
| 47 | sleep, or permanently. | |
| 48 | ||
| 49 | fsl,mpc8548-pmc: Sleep specifiers consist of one or two cells, the | |
| 50 | first of which will be ORed into DEVDISR (and the second into | |
| 51 | DEVDISR2, if present -- this cell should be zero or absent if the | |
| 52 | hardware does not have DEVDISR2) upon a request for permanent device | |
| 53 | disabling. This sleep controller does not support configuring devices | |
| 54 | to disable during system sleep (unless supported by another compatible | |
| 55 | match), or dynamically. | |
| 56 | ||
| 57 | Example: | |
| 58 | ||
| 59 | power@b00 { | |
| 60 | compatible = "fsl,mpc8313-pmc", "fsl,mpc8349-pmc"; | |
| 61 | reg = <0xb00 0x100 0xa00 0x100>; | |
| 62 | interrupts = <80 8>; | |
| 63 | }; |