On Fri, Jan 14, 2022 at 6:55 AM Heiko Schocher hs@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 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