Tool/software: Linux
Hello,
I try to disable peripherals after power-up and after initial initialization in u-boot console.
Surprsingly, after disabling the PRM in almost all modules, it seems that both cpu and uart function as normal, I still have console and everything seems to be powered on.
for example I've powered off MPU_PRM, CORE_PEM etc as following:
Try to disable MPU (arm):
VAR-OM3xxx # md 0x483069e0 10
483069e0: 00030107 000000c7 00000000 00000000 ................
483069f0: 00000000 00000000 00000000 00000000 ................
48306a00: 00000000 00000000 00000000 00000000 ................
48306a10: 00000000 00000000 00000000 00000000 ................
VAR-OM3xxx # mw 0x483069e0 0
VAR-OM3xxx # md 0x483069e0 2
483069e0: 00000000 000000c7 ........
VAR-OM3xxx #
Try to disable CORE module (UART1-2)
VAR-OM3xxx # md 0x483070e0
483070e0: 00030100 00000007 00000000 00000000 ................
VAR-OM3xxx # md 0x48306ae0 4
48306ae0: 000f0307 000000f7 00000000 00000000 ................
VAR-OM3xxx # mw 0x48306ae0 0 1
VAR-OM3xxx # md 0x48306ae0 4
48306ae0: 00000000 000000f7 00000000 00000000 ................
VAR-OM3xxx #
Try to disable PER module (UART3)
VAR-OM3xxx # mw 0x483070e0 0 1
VAR-OM3xxx #
VAR-OM3xxx # md 0x483070e0
483070e0: 00030100 00000007 00000000 00000000 ................
VAR-OM3xxx #
All results in both cpu and debug uart is ON.
Thank you,
Ran
