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66AK2H12: How to modify the linux code to support memblock=debug

Genius 13655 points
Part Number: 66AK2H12

Hello Champs,

HW: TI66ak  EVM board
SW: ti-processor-sdk-linux-k2hk-evm- (linux kernel version 4.19.38)

1. In u-boot bootargs: adding memblock=debug, earlycon=uart8250,mmio32,0x02530c00, 115200n8,then booting the OS, the console prompted: Memory policy: Da. ta cache writealloc. arm PC entered to exception, data abort, PC is 0xffff_000C

2. If not modifying the bootargs, the OS can boot successfully. 

How to modify the linux code to support memblock=debug?