| Freescale-specific 'hwconfig' options. | |
| This file documents Freescale-specific key:value pairs for the 'hwconfig' | |
| option. See README.hwconfig for general information about 'hwconfig'. | |
| audclk | |
| Specific to the P1022DS reference board. | |
| This option specifies which of the two oscillator frequencies should be | |
| routed to the Wolfson WM8776 codec. The ngPIXIS can be programmed to | |
| route either a 11.2896MHz or a 12.288MHz clock. The default is | |
| 12.288MHz. This option has two effects. First, the MUX on the board | |
| will be programmed accordingly. Second, the clock-frequency property | |
| in the codec node in the device tree will be updated to the correct | |
| value. | |
| 'audclk:11' | |
| Select the 11.2896MHz clock | |
| 'audclk:12' | |
| Select the 12.288MHz clock | |
| usb | |
| Specific to boards have USB controller | |
| This option specifies the following for a USB controller: | |
| - which controller mode to use | |
| - which USB PHY to use | |
| This is used by generic USB device-tree fixup function to update | |
| modified values of phy type and controller mode. | |
| Also used for configuring multiple USB controllers such that | |
| 'usbN' (where N is 1, 2, etc. refers to controller no.) | |
| 'phy_type' | |
| Select USB phy type: 'utmi' OR 'ulpi' | |
| 'dr_mode' | |
| Select USB controller mode: 'host', 'peripheral' OR 'otg' | |
| Examples: | |
| usb1:dr_mode=host;usb2:dr_mode=peripheral' | |
| usb1:dr_mode=host,phy_type=utmi;usb2:dr_mode=host' |