9cb6751d59
Do not power off the CPU1 since there is no way to wake it up (wake-up is causing CPU0 reset as well duo to HW bug). Quote from errata Ref #13 [In power saving mode, both cores must be powered off]: "When Core 0 is on and Core 1 is in power-off state, a Core 1 wake-up resets Core 0 as well and puts Core 0 back to ROM". To overcome described HW bug instead of powering the CPU off, let it reach WFI instruction, which is invoked by generic psci_do_cpu_off function after platform handler finishes. This will put the core in low power state and give a chance to wake it up. Before this change, after running secondary kernel via kexec, only one core was up, now both cores are up. Change-Id: I87f144867550728055d9b8a2edb84a14539acab7 Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com> Reviewed-by: Kostya Porotchkin <kostap@marvell.com> |
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