root@j721s2-evm:~# devmem2 0x05060408
/dev/mem opened.
Memory mapped at address 0xffff8eb0c000.
Read at address  0x05060408 (0xffff8eb0c408): 0x18000000
root@j721s2-evm:~# devmem2 0x0506040C
/dev/mem opened.
Memory mapped at address 0xffffbeef9000.
Read at address  0x0506040C (0xffffbeef940c): 0xB1000000
root@j721s2-evm:~# devmem2 0x05060480
/dev/mem opened.
Memory mapped at address 0xffff8d109000.
Read at address  0x05060480 (0xffff8d109480): 0x30000000
root@j721s2-evm:~# devmem2 0x050604C0
/dev/mem opened.
Memory mapped at address 0xffff847ee000.
Read at address  0x050604C0 (0xffff847ee4c0): 0x70000000
root@j721s2-evm:~# devmem2 0x05060500
/dev/mem opened.
Memory mapped at address 0xffffa5f6c000.
Read at address  0x05060500 (0xffffa5f6c500): 0x30000000
root@j721s2-evm:~# devmem2 0x05060540
/dev/mem opened.
Memory mapped at address 0xffff99aae000.
Read at address  0x05060540 (0xffff99aae540): 0x30000000
root@j721s2-evm:~# devmem2 0x05060484
/dev/mem opened.
Memory mapped at address 0xffff86ecc000.
Read at address  0x05060484 (0xffff86ecc484): 0x00000000
root@j721s2-evm:~# devmem2 0x050604C4
/dev/mem opened.
Memory mapped at address 0xffffb954a000.
Read at address  0x050604C4 (0xffffb954a4c4): 0x00000000
root@j721s2-evm:~# devmem2 0x05060504
/dev/mem opened.
Memory mapped at address 0xffff8ba62000.
Read at address  0x05060504 (0xffff8ba62504): 0x00000000
root@j721s2-evm:~# devmem2 0x05060544
/dev/mem opened.
Memory mapped at address 0xffff98b2f000.
Read at address  0x05060544 (0xffff98b2f544): 0x00000000
root@j721s2-evm:~# devmem2 0x05060488
/dev/mem opened.
Memory mapped at address 0xffff823ca000.
Read at address  0x05060488 (0xffff823ca488): 0x00000000
root@j721s2-evm:~# devmem2 0x050604C8
/dev/mem opened.
Memory mapped at address 0xffff87d69000.
Read at address  0x050604C8 (0xffff87d694c8): 0x00000000
root@j721s2-evm:~# devmem2 0x05060508
/dev/mem opened.
Memory mapped at address 0xffffb61dd000.
Read at address  0x05060508 (0xffffb61dd508): 0x00000000
root@j721s2-evm:~# devmem2 0x05060548
/dev/mem opened.
Memory mapped at address 0xffff96e5f000.
Read at address  0x05060548 (0xffff96e5f548): 0x00000000
root@j721s2-evm:~# devmem2 0x0506048C
/dev/mem opened.
Memory mapped at address 0xffffbd8c5000.
Read at address  0x0506048C (0xffffbd8c548c): 0x00000012
root@j721s2-evm:~# devmem2 0x050604CC
/dev/mem opened.
Memory mapped at address 0xffff7fb43000.
Read at address  0x050604CC (0xffff7fb434cc): 0x00000022
root@j721s2-evm:~# devmem2 0x0506050C
/dev/mem opened.
Memory mapped at address 0xffff86ff4000.
Read at address  0x0506050C (0xffff86ff450c): 0x00000002
root@j721s2-evm:~# devmem2 0x0506054C
/dev/mem opened.
Memory mapped at address 0xffff88064000.
Read at address  0x0506054C (0xffff8806454c): 0x00000000
root@j721s2-evm:~# devmem2 0x0506E000
/dev/mem opened.
Memory mapped at address 0xffffb79fb000.
Read at address  0x0506E000 (0xffffb79fb000): 0x00490011
root@j721s2-evm:~# devmem2 0x05060410
/dev/mem opened.
Memory mapped at address 0xffffb0cf3000.
Read at address  0x05060410 (0xffffb0cf3410): 0x00000000
root@j721s2-evm:~# devmem2 0x00104080
/dev/mem opened.
Memory mapped at address 0xffffa18ab000.
Read at address  0x00104080 (0xffffa18ab080): 0x00000001
root@j721s2-evm:~# devmem2 0x00104084
/dev/mem opened.
Memory mapped at address 0xffff9a19c000.
Read at address  0x00104084 (0xffff9a19c084): 0x00000002
root@j721s2-evm:~# devmem2 0x00104000
/dev/mem opened.
Memory mapped at address 0xffffb8915000.
Read at address  0x00104000 (0xffffb8915000): 0x08000000
root@j721s2-evm:~#
root@j721s2-evm:~#
root@j721s2-evm:~# dd if=/dev/zero of=/mnt/5.dat bs=4M count=256
256+0 records in
256+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 8.24032 s, 130 MB/s