To access the RMR:
MRC p15,0,<Rt>,c12,c0,2 ; Read RMR into Rt
MCR p15,0,<Rt>,c12,c0,2 ; Write Rt to RMR
Register access is encoded as follows:
Table B1-88 RMR access encoding
coproc opc1 CRn CRm opc2
1111 000 1100 0000 010
B1 AArch32 system registers
B1.103 Reset Management Register
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