LS1046A: RCW_SRC getting cleared in u-boot

[nl10001]

Hi,

I simply want to check that I can query the PORSR1 register in u-boot and have the value correspond to QSPI.

My issue is that I have enabled the debug print in u-boot in cpu.c which shows the correct value (meaning cfg_rcw_src[8:0] have been sampled correctly) however when I run "md 0x1ee0000" the top 9 bits of PORSR1 (RCW_SRC) have been cleared. I can't see anywhere in the code where PORSR1 is edited.

Any ideas on why this may be?

Thanks,

Neil

[June_Lu · Accepted solution]

That is expected. It happens due to A-010539 workaround implementation.

Thanks