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AM6421: AM6421 A53 core1 fails to start under Linux.

Part Number: AM6421

下面是打印信息:(The following is the printout information.)

0.098666] smp: Bringing up secondary CPUs ...
ERROR:   Failed to get response (-19)
ERROR:   Transfer send failed (-19)
ERROR:   Request to start core failed: -19
[    0.118533] psci: failed to boot CPU1 (-22)
[    0.122859] CPU1: failed to boot: -22
[    0.126707] smp: Brought up 1 node, 1 CPU