On Thu 11 Mar 04:06 CST 2021, schowdhu@xxxxxxxxxxxxxx wrote: > On 2021-03-11 04:49, Bjorn Andersson wrote: > > On Wed 10 Mar 10:46 CST 2021, Souradeep Chowdhury wrote: > > > > > The DCC is a DMA Engine designed to capture and store data > > > during system crash or software triggers. The DCC operates > > > based on link list entries which provides it with data and > > > addresses and the function it needs to perform. These > > > functions are read, write and loop. Added the basic driver > > > in this patch which contains a probe method which instantiates > > > the resources needed by the driver. DCC has it's own SRAM which > > > needs to be instantiated at probe time as well. > > > > > > > So to summarize, the DCC will upon a crash copy the configured region > > into the dcc-ram, where it can be retrieved either by dumping the memory > > over USB or from sysfs on the next boot? > > Replied by Sai > Thanks Souradeep and Sai, I'm definitely interested in learning more about what the hardware block can do and how we can use it. Regards, Bjorn
