On Thu, Dec 18, 2014 at 12:32:33PM +0100, Irgendeiner wrote: > Following the suggestion of Diego Roversi I tried to analyze the > behavior of the governor and found out that mainline kernel lacks > those parts in the kernel configuration and in kernel code. > > I just wonder how and to what value the cpu frequencies gets set?
It doesn't, there's no such support in the mainline kernel, and it just uses whatever the bootloader set it to. > How could I check and evt. manually change it? You can check it by reading the frequency of the "cpu" clock in /sys/kernel/debug/clk/clk_summary > I also wonder why none of the esteemed experts who thankfully made > that code available in mainline did answer to my initial posting? Because we have no idea? More seriously, what makes you think that the AHCI controller itself has a flaw? Did you try the same disk on the same kernel configuration on another ARM SoC? The same kernel on the same SoC with a different disk? A different kernel with same disk on another machine? Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
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