BCM4339 how to check function2 enable fail problem

[user_3557306]

Hi all,

I have tried to porting BCM4339 WiFi driver on my RTOS, but suffered enable SDIO function 2 problem.

After setting SDIOD_CCCR_IOEN to 0x06, polling SDIOD_CCCR_IORDY value is 0x02, not 0x06.

How can I check this problem step by step?

Are there any required hardware or software settings I should do before enabling function 2?

[RaktimR_11]

what is the host, rtos you are using? Kindly provide some details.

[VinayakS_26 · Accepted solution]

Please do provide details on the host that you are using? If you are using a liinux host, what is the driver that you are using here?