• Jagadeesh Ujja's avatar
    plat/arm: css: Turn ON/OFF redistributor in sync with GIC CPU interface ON/OFF · 4d8c1819
    Jagadeesh Ujja authored
    
    
    Turn ON/OFF GIC redistributor in sync with GIC CPU interface ON/OFF.
    
    Issue :
    The Linux prompt hangs when all the cores in a cluster are turned OFF
    and we try to turn ON a core in that cluster. Previously when TF-A turns
    ON a core, TF-A first turns ON the redistributor followed by the core.
    This did not match the flow when turning OFF a core, as TF-A did not
    turn OFF redistributor when the corresponding core[s] are disabled.
    This hang is resolved by disabling redistributor as cores are disabled,
    keeping them in sync.
    Signed-off-by: default avatarJagadeesh Ujja <jagadeesh.ujja@arm.com>
    Change-Id: Ifd04fdcfd47b45e00f874f15b098471883d023f0
    4d8c1819
css_pm.c 12.8 KB