| 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' |
