Hello Community,
I am trying to integrate Marvell's 8787 SDIO wifi module on the i.MX6Q Sabre-SD Board. By inserting the sd8xxx.ko, it always ends with a firmware download error.
After system goes up, I can see "mmc1: new high speed SDIO card at address 0001" in dmesg. Then I try to insert the corresponding driver module like mlan.ko, cfg80211.ko and sd8xxx.ko.
According to Marvell, before the FW gets downloaded, a register CARD_TO_HOST_EVENT_REG (0x30) would be checked by driver and only when bit[3] and bit[0] are 1, FW download can be started.
You can see line 405 in the attachment that this 0x30 register is 0xc which means bit[0] Dwnld_Card_Rdy is 0. So FW download/init faild.
Am I missing some patches for the SDIO bus? Is there a way to debug this issue? Any suggestion is much appreciated.
Attached the dmesg by loading the driver.
Cheers,
Qiuye
Original Attachment has been moved to: dmesg.1.zip
