In mx6Q/D RM, charpter 18.4 System Clocks, there is the clome "clock" in the table.
For many clock names in this table, like clocks for usduc hclk, ipg_clk_perclk, ipg_clk_s, I can not find any descriptions no matter in RM or in kernel code.
In my opinion, the name of "hclk", whose root clock is ahb_clk_root , should be "ahb" in kernel code mach-mx6/clock.c.
I wonder this is RM errors or there are some others deep meanings?
Currently I want to find out ways of adjusting EMMC clock. I think the clock should be ipg_clk_perclk, corresponding to usdhc_clock_root. Am I right?