At 2021-08-11 18:58:09, "Sergei Shtylyov" <sergei.shtylyov@xxxxxxxxx> wrote: >Hello! > >On 11.08.2021 11:56, Slark Xiao wrote: > >> Foxconn SDX55 T77W175 device is working in PCIe mode normally. >> You can find it in drivers/bus/mhi/pci_geneirc.c file. > > pci_generic? :-) > >> But in some scenario, we need to capture the memory dump once it crashed. >> So a diag port driver is needed. >> >> Signed-off-by: Slark Xiao <slark_xiao@xxxxxxx> >[...] > >MBR, Sergei Hi Sergei, Yes, I didn't mix them up. Our product supports 3 modes: PCIE only, USB only, and PCIE+USB. Normally, it would be PCIE mode. When we want to reproduce some crash issue, we will switch it from PCIE mode to PCIE+USB mode. In this scenario, the USB port is used for capturing memory dump as our tool is designed based on Qualcomm USB Sahara protocol. Thanks.
