On Fri, Jan 14, 2022 at 6:55 AM Heiko Schocher <[email protected]> wrote: > > Hello Tim, > > On 25.02.21 02:21, Tim Harvey wrote: > > Greetings, > > > > I'm trying to convert the gwventana board support to DM_ETH and DM_USB > > and one item I have not resolved yet is USB Ethernet gadget support. > > > > For non-dm a call to 'usb_eth_initialize' creates a usb_ether gadget > > that can be used for ethernet communication between the IMX6 OTG > > controller in device mode to a USB host. How is that accomplished via > > dm? > > > > I find that drivers/usb/gadget/ether.c has dm support but it would > > appear that a controller of UCLASS_USB_GADGET_GENERIC must bind for it > > to work yet I don't see how this works with CI_UDC. > > > > Other IMX6 boards that have gone through dm conversion have simply > > dropped the call to usb_eth_initialize and I don't see what else they > > enable that provides this functionality. > > > > Any ideas? > > Late ... but I stumbled just over the same problem... do you have solved > it? > > I just tried this on an imx6ull based board and get it not fully working, > but usb ethernet with DM_ETH enabled at least starts for me... > > > => setenv ethact usb_ether > => setenv ipaddr 192.168.7.2 > > The magic call for me is: > > => bind usb 0 usb_ether > > > After this I see in "dm tree" output: > > simple_bus 5 [ + ] simple_bus | |-- aips-bus@2100000 > usb 0 [ ] ehci_mx6 | | |-- usb@2184000 > eth 1 [ ] usb_ether | | | `-- usb_ether > > And issuing a ping starts usb_ether with (some DBG are enabled) > > => ping 192.168.71. > using ci_udc, OUT ep2out-bulk IN ep1in-bulk STATUS ep3in-int > MAC 8e:79:6a:94:5f:09 > HOST MAC 5a:d1:77:da:0e:7a > RNDIS ready > -- suspend -- > -- reset -- > -- portchange 2 High > handle setup GET_DESCRIPTOR, 80, 6 index 0 value 100 length 40 > handle_setup: Set ep0 to IN for Data Stage > [...] > -- reset -- > -- portchange 2 High > [...] > ci_ep_enable: from 512 to 16 > ci_ep_enable: num=3 maxpacket=16 > ci_ep_enable: num=1 maxpacket=512 > ci_ep_enable: num=2 maxpacket=512 > high speed config #2: 2 mA, Ethernet Gadget, using RNDIS > [...] > > [remark] until here same log as for the case with DM_ETH not enabled > > [...] > ept0 out req 9bf78be0, complete 0 > handle setup GET_STATUS, 21, 0 index 0 value 0 length 18 > handle_setup: Set ep0 to OUT for Data Stage > ept0 out pre-queue req 9bf78be0, buffer 9bf91e80 > ept0 out queue len 18, req 9bf78be0, buffer 9bf91e80 > handle_setup: end status: 0 > ept0 out req 9bf78be0, complete 0 > > > And than the board makes a reset (no crash dump) > > on the other side I see: > > [2114399.914244] usb 1-1.3.1.2: new high-speed USB device number 46 using > dwc_otg > [2114400.311239] usb 1-1.3.1.2: config 1 has 0 interfaces, different from the > descriptor's value: 1 > [2114400.436155] usb 1-1.3.1.2: New USB device found, idVendor=0525, > idProduct=a4a5, bcdDevice= 3.21 > [2114400.436175] usb 1-1.3.1.2: New USB device strings: Mfr=1, Product=2, > SerialNumber=0 > [2114400.436190] usb 1-1.3.1.2: Product: RNDIS/Ethernet Gadget > [2114400.436204] usb 1-1.3.1.2: Manufacturer: U-Boot > [2114400.569248] usb-storage 1-1.3.1.2:2.0: USB Mass Storage device detected > [2114400.569721] usb-storage 1-1.3.1.2:2.0: Quirks match for vid 0525 pid > a4a5: 10000 > [2114400.597702] rndis_host 1-1.3.1.2:2.0: RNDIS init failed, -71 > [2114400.597799] rndis_host: probe of 1-1.3.1.2:2.0 failed with error -71 > [2114400.598336] rndis_wlan 1-1.3.1.2:2.0: RNDIS init failed, -71 > [2114400.598591] rndis_wlan: probe of 1-1.3.1.2:2.0 failed with error -71 > [2114400.599839] usb-storage 1-1.3.1.2:2.1: USB Mass Storage device detected > [2114400.600254] usb-storage 1-1.3.1.2:2.1: Quirks match for vid 0525 pid > a4a5: 10000 > [2114400.656387] usb 1-1.3.1.2: USB disconnect, device number 46 > > If I disable DM_ETH... usb_ether works fine on the board ... > > Any ideas? >
Heiko, Sorry for the late reply - I've been out of the office and unable to test. I don't know if/how I got around this issue but would love to compare notes. On a gwventana IMX6 board with emmc and a USB OTG connector USB_MASS_STORAGE gadget works via 'ums 0 mmc 0'. I'm not familiar with the bind method you are using but reading about it in doc/develop/driver-model/bind.rst it seems like a nice generic way to bind to various USB gadget devices. What configs do you need enabled for the usb_ether class and did you end up getting this to work? What other gadgets are available like this? Best Regards, Tim
