On 7/31/23 11:31, Miquel Raynal wrote:
Hi Marek,
ma...@denx.de wrote on Sat, 29 Jul 2023 16:57:09 +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
"
Signed-off-by: Marek Vasut <ma...@denx.de>
---
I am no longer getting wrong pointer dereferences, the SPL is working in
recovery mode, TFTP "File not found" errors are no longer a problem and
I did not experience any reset while tftp'ing regular files.
One last remaining request on my side is the need for using fastboot as
well which does no longer work as-is:
=> fastboot usb 0
couldn't find an available UDC
g_dnl_register: failed!, error: -19
exit not allowed from main input shell.
Can you advise what bind/unbind command would be necessary here?
Either 'unbind usb_ether' or run 'dm tree' -> look up the path to
usb_ether in the tree (it will be hanging under usb_peripheral or some
such), and then use 'unbind <that path>'.
