README.fsl-hwconfig 1.36 KB
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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
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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'