• Neil Armstrong's avatar
    ARM64: dts: meson-gxbb-odroidc2: Disable SCPI DVFS · f7bcd4b6
    Neil Armstrong authored
    The current hardware is not able to run with all cores enabled at a
    cluster frequency superior at 1536MHz.
    But the currently shipped u-boot for the platform still reports an OPP
    table with possible DVFS frequency up to 2GHz, and will not change since
    the off-tree linux tree supports limiting the OPPs with a kernel parameter.
    A recent u-boot change reports the boot-time DVFS around 100MHz and
    the default performance cpufreq governor sets the maximum frequency.
    Previous version of u-boot reported to be already at the max OPP and
    left the OPP as is.
    Nevertheless, other governors like ondemand could setup the max frequency
    and make the system crash.
    
    This patch disables the DVFS clock and disables cpufreq.
    
    Fixes: 70db166a ("ARM64: dts: meson-gxbb: Add SCPI with cpufreq & sensors Nodes")
    Signed-off-by: default avatarNeil Armstrong <narmstrong@baylibre.com>
    Signed-off-by: default avatarKevin Hilman <khilman@baylibre.com>
    Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
    f7bcd4b6
meson-gxbb-odroidc2.dts 5.06 KB