• Jason Cooper's avatar
    ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency · 93fff4ce
    Jason Cooper authored
    When DT support for kirkwood was first introduced, there was no clock
    infrastructure.  As a result, we had to manually pass the
    clock-frequency to the driver from the device node.
    
    Unfortunately, on kirkwood, with minimal config or all module configs,
    clock-frequency breaks booting because of_serial doesn't consume the
    gate_clk when clock-frequency is defined.
    
    The end result on kirkwood is that runit gets gated, and then the boot
    fails when the kernel tries to write to the serial port.
    
    Fix the issue by removing the clock-frequency parameter from all
    kirkwood dts files.
    
    Booted on dreamplug without earlyprintk and successfully logged in via
    ttyS0.
    Reported-by: default avatarSimon Baatz <gmbnomis@gmail.com>
    Tested-by: default avatarSimon Baatz <gmbnomis@gmail.com>
    Cc: <stable@vger.kernel.org>
    Signed-off-by: default avatarJason Cooper <jason@lakedaemon.net>
    93fff4ce
kirkwood-km_kirkwood.dts 811 Bytes