• Manuel Lauss's avatar
    MIPS: Alchemy: clock framework integration of onchip clocks · 47440229
    Manuel Lauss authored
    This patch introduces common clock framework integration for all
    configurable on-chip clocks on Alchemy chips:
    
    - 2 or 3 PLLs which generate integer multiples of the root rate 12MHz,
    - 6 dividers which take one of the 3 PLLs as input and divide their
      rate by either multiples of 2 or 1 (Au1300).
    - another bank of up to 6 muxes which take either one of the 6
      above dividers or one of the PLLs directly and divide their rate
      further by 1, 2, 3 or 4.
    - a few other sources which are used by onchip peripherals and are
      informational.
    
    This implementation will take the clock tree as it was set up
    by boot firmware: all in-kernel boards should continue to work
    without having to set up the clock tree in board code.
    
    CLK_IGNORE_DISABLED will be removed once all drivers have been
    converted.
    Signed-off-by: default avatarManuel Lauss <manuel.lauss@gmail.com>
    Cc: Mike Turquette <mturquette@linaro.org>
    Cc: Linux-MIPS <linux-mips@linux-mips.org>
    Patchwork: https://patchwork.linux-mips.org/patch/7466/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
    47440229
clock.c 26.7 KB