Bug#830303: mmc0: Unexpected interrupt 0x04000000.

[Alexandros Kosiaris <akosiaris@gmail.com>]

Hi,

For what it's worth, it seems on this specific hardware:

Broadcom Limited BCM57765/57785 SDXC/MMC Card Reader [14e4:16bc]

the problem can be resolved by passing:

debug_quirks2=0x4 to sdhci kernel module.

Note that there is also the debug_quirks param. I did set some values
for it but the working one is the default, namely 0

For more information have a look at
https://bugzilla.kernel.org/show_bug.cgi?id=73241#c55

I just tested it on a Macmini7,1Debian having Stretch with
4.19+101~bpo9+1 kernel. I 'll be using it for the next few days, I am
hoping everything will work out ok and I won't have to report more
stuff