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- 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'
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