Hello Tim, On 28.01.22 01:20, Tim Harvey wrote: > On Fri, Jan 14, 2022 at 6:55 AM Heiko Schocher <h...@denx.de> 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
No problem, thanks for your time! > 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'. okay, good hint. > 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? I just stumbled over the doc and tried the bind approach, which I think is a good way ... just need to find out, what is missing.. ideas are welcome! I had not yet time to dig again into it, hope I find time for it next week. bye, Heiko > > Best Regards, > > Tim > -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-52 Fax: +49-8142-66989-80 Email: h...@denx.de
