Hi Marek,
marex@denx.de wrote on Fri, 4 Aug 2023 17:40:07 +0200:
On 8/4/23 17:12, Miquel Raynal wrote:
Hi,
marex@denx.de wrote on Fri, 4 Aug 2023 17:05:01 +0200:
On 8/4/23 17:01, Tom Rini wrote:
On Fri, Aug 04, 2023 at 04:42:13PM +0200, Marek Vasut wrote:
On 8/4/23 09:00, Miquel Raynal wrote:
Hi Marek,
marex@denx.de wrote on Wed, 2 Aug 2023 14:46:54 +0200: >>>>>> Extend the driver core to perform lookup by both OF node and driver > bound to the node. Use this to look up specific device instances to > unbind from nodes in the unbind command. One example where this is > needed is USB peripheral controller, which may have multiple gadget > drivers bound to it. The unbind command has to select that specific > gadget driver instance to unbind from the controller, not unbind the > controller driver itself from the controller. > > USB ethernet gadget usage looks as follows with this change. Notice > the extra 'usb_ether' addition in the 'unbind' command at the end. > " > bind /soc/usb-otg@49000000 usb_ether > setenv ethact usb_ether > setenv loadaddr 0xc2000000 > setenv ipaddr 10.0.0.2 > setenv serverip 10.0.0.1 > setenv netmask 255.255.255.0 > tftpboot 0xc2000000 10.0.0.1:test.file > unbind /soc/usb-otg@49000000 usb_ether
This extra parameter does not seem to work on the BBBW. I cannot select the "usb_ether" driver like you do.
Good news though, I am now able to use fastboot, but it is not straightforward:
Here is my sequence right after the boot (reducing the dm tree output to the usb nodes for clarity): >>>>> => dm tree misc 0 [ + ] ti-musb-wrapper | |-- usb@47400000 usb 0 [ + ] ti-musb-peripheral | | |-- usb@47401000 ethernet 1 [ + ] usb_ether | | | `-- usb_ether bootdev 3 [ ] eth_bootdev | | | `-- usb_ether.bootdev usb 0 [ ] ti-musb-host | | `-- usb@47401800 => fastboot usb 0 couldn't find an available UDC g_dnl_register: failed!, error: -19
That is expected and not a bug, since the beagle explicitly binds USB ethernet to MUSB gadget in board file, which is legacy deprecated way.
So, we should do away with, probably all of arch_misc_init() in arch/arm/mach-omap2/am33xx/board.c for the non-SPL case.
Yes
exit not allowed from main input shell. => unbind /ocp/usb@47400000/usb@47401000 usb_ether
Does
>>> => unbind ethernet 0
work ?
If so, 1/4 in this series can be skipped altogether.
You likely won't even need the rebinding of ti-musb-peripheral anymore.
Did you test this yet ?
Unfortunately it does not work. Indeed it would be much simpler than using the node path. Any idea why?
Thanks, Miquèl