| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | TI DA8xx MUSB |
| 2 | ~~~~~~~~~~~~~ |
| 3 | For DA8xx/OMAP-L1x/AM17xx/AM18xx platforms. |
| 4 | |
| 5 | Required properties: |
| 6 | ~~~~~~~~~~~~~~~~~~~~ |
| 7 | - compatible : Should be set to "ti,da830-musb". |
| 8 | |
| 9 | - reg: Offset and length of the USB controller register set. |
| 10 | |
| 11 | - interrupts: The USB interrupt number. |
| 12 | |
| 13 | - interrupt-names: Should be set to "mc". |
| 14 | |
| 15 | - dr_mode: The USB operation mode. Should be one of "host", "peripheral" or "otg". |
| 16 | |
| 17 | - phys: Phandle for the PHY device |
| 18 | |
| 19 | - phy-names: Should be "usb-phy" |
| 20 | |
| 21 | - dmas: specifies the dma channels |
| 22 | |
| 23 | - dma-names: specifies the names of the channels. Use "rxN" for receive |
| 24 | and "txN" for transmit endpoints. N specifies the endpoint number. |
| 25 | |
| 26 | Optional properties: |
| 27 | ~~~~~~~~~~~~~~~~~~~~ |
| 28 | - vbus-supply: Phandle to a regulator providing the USB bus power. |
| 29 | |
| 30 | DMA |
| 31 | ~~~ |
| 32 | - compatible: ti,da830-cppi41 |
| 33 | - reg: offset and length of the following register spaces: CPPI DMA Controller, |
| 34 | CPPI DMA Scheduler, Queue Manager |
| 35 | - reg-names: "controller", "scheduler", "queuemgr" |
| 36 | - #dma-cells: should be set to 2. The first number represents the |
| 37 | channel number (0 … 3 for endpoints 1 … 4). |
| 38 | The second number is 0 for RX and 1 for TX transfers. |
| 39 | - dma-channels: should be set to 4 representing the 4 endpoints. |
| 40 | - #dma-channels: deprecated |
| 41 | |
| 42 | Example: |
| 43 | usb_phy: usb-phy { |
| 44 | compatible = "ti,da830-usb-phy"; |
| 45 | #phy-cells = <0>; |
| 46 | }; |
| 47 | usb0: usb@200000 { |
| 48 | compatible = "ti,da830-musb"; |
| 49 | reg = <0x00200000 0x1000>; |
| 50 | ranges; |
| 51 | #address-cells = <1>; |
| 52 | #size-cells = <1>; |
| 53 | interrupts = <58>; |
| 54 | interrupt-names = "mc"; |
| 55 | |
| 56 | dr_mode = "host"; |
| 57 | vbus-supply = <&usb_vbus>; |
| 58 | phys = <&usb_phy 0>; |
| 59 | phy-names = "usb-phy"; |
| 60 | |
| 61 | dmas = <&cppi41dma 0 0 &cppi41dma 1 0 |
| 62 | &cppi41dma 2 0 &cppi41dma 3 0 |
| 63 | &cppi41dma 0 1 &cppi41dma 1 1 |
| 64 | &cppi41dma 2 1 &cppi41dma 3 1>; |
| 65 | dma-names = |
| 66 | "rx1", "rx2", "rx3", "rx4", |
| 67 | "tx1", "tx2", "tx3", "tx4"; |
| 68 | |
| 69 | |
| 70 | cppi41dma: dma-controller@201000 { |
| 71 | compatible = "ti,da830-cppi41"; |
| 72 | reg = <0x201000 0x1000 |
| 73 | 0x202000 0x1000 |
| 74 | 0x204000 0x4000>; |
| 75 | reg-names = "controller", "scheduler", "queuemgr"; |
| 76 | interrupts = <58>; |
| 77 | #dma-cells = <2>; |
| 78 | dma-channels = <4>; |
| 79 | }; |
| 80 | |
| 81 | }; |