phyFLEX-i.MX6: Add busfreq

The busfreq function support is in the kernel since:

	commit 32ea8aa56866047e100c6600cf663aaf786d8dbe
	Author: Ranjani Vaidyanathan <ra5478@freescale.com>
	Date:   Tue Feb 7 14:34:13 2012 -0600

	|ENGR00179574: MX6- Add bus frequency scaling support
	|
	|Add support for scaling the bus frequency (both DDR
	|and ahb_clk).
	|The DDR and AHB_CLK are dropped to 24MHz when all devices
	|that need high AHB frequency are disabled and the CORE
	|frequency is at the lowest setpoint.
	|The DDR is dropped to 400MHz for the video playback usecase.
	|In this mode the GPU, FEC, SATA etc are disabled.
	|
	|To scale the bus frequency, its necessary that all cores
	|except the core that is executing the DDR frequency change
	|are in WFE. This is achieved by generating interrupts on
	|un-used interrupts (Int no 139, 144, 145 and 146).
	|
	|Signed-off-by: Ranjani Vaidyanathan <ra5478@freescale.com>

Signed-off-by: Christian Hemp <c.hemp@phytec.de>

0 files changed, 0 insertions, 0 deletions