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GGeor25's avatar
GGeor25
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6 years ago

Why Cyclon V Reset manager status register always read 0?

Hello, In our project we have u-boot v2018.11. I have been requested to write a functionality related to reset reason. Following the already implemented functionality mainly in iMX devices I wrote s...
AnilErinch_A_Intel's avatar
AnilErinch_A_Intel
Icon for Frequent Contributor rankFrequent Contributor
6 years ago

Hi,

Can you try the code snippet below and let us know the results

static const struct socfpga_reset_manager *reset_manager_base = (void *)SOCFPGA_RSTMGR_ADDRESS;

int cause;

cause = readl(&reset_manager_base->status) &0xFFFFFFFF;

Regards

Anil

  • GGeor25's avatar
    GGeor25
    Icon for New Contributor rankNew Contributor
    6 years ago

    Hi,

    No, it is not working. I will try some assembly routine tomorrow using tst instructions. I still think it is due to incorrect access or this is done after some code relocation and read a wrong place...

    By the way what is the difference between your code and mine? I see in all cases always 0.