On Thu, Jan 02, 2025 at 11:23:05AM +0200, Rogan Dawes wrote:
Hi folks,
I am trying to get a modern u-boot running on my Wink Hub v1 (Hi Fabio! :-)
One of the features I am trying to enable is ultimately usbacm console, but in the process of trying to get there, I first tried enabling MUSB.
diff --git a/configs/mx28evk_defconfig b/configs/mx28evk_defconfig index fdab7ef73e5..8185c7e0d5a 100644 --- a/configs/mx28evk_defconfig +++ b/configs/mx28evk_defconfig @@ -70,3 +70,4 @@ CONFIG_USB_GADGET_VENDOR_NUM=0x0525 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5 CONFIG_CI_UDC=y CONFIG_USB_GADGET_DOWNLOAD=y +CONFIG_USB_MUSB_GADGET=y
* snipped compile errors *
Any ideas on how to fix this?
Turns out the problem was failure to include:
CONFIG_USB_MUSB_PIO_ONLY=y
in the defconfig file. Would it make sense for this to be a configuration error with a suitable error message when enabled without this option?
I also had to remove the CONFIG_CI_UDC option, as it was the incorrect UDC driver, and resulted in duplicate symbols being defined.
P.S. For what it is worth, I seem to have destroyed the console UART on my hardware, which is why I am trying to enable USB Gadget console. It also means that I am unable to provide any console logs from an actual running device. I do have another on the way, but right now, I'm actually trying to use the flash chip on my Hub 1 to hold an image read from the Hub 2, mount the various filesystems, and create a file that will enable a console on the Hub 2, which is otherwise locked down with HABv4!
Unfortunately, while I can get it to compile now, I still don't get any new USB activity once I load it with snagrecover:
$ cat wink.yaml flash-bin: path: u-boot.sb $ snagrecover -s imx28 -f wink.yaml 2025-01-02 14:04:50,577 [INFO] Starting recovery of imx28 board 2025-01-02 14:04:50,637 [INFO] HID device 1-2 has hidraw dev /dev/hidraw1 2025-01-02 14:04:50,637 [INFO] Finished initializing HID device {pretty_addr} 2025-01-02 14:04:50,638 [INFO] Installing firmware flash-bin 2025-01-02 14:04:50,638 [INFO] Subfirmware: spl-sdps 2025-01-02 14:04:50,639 [INFO] SDPS write with parameters size:0xa3910 offset:0x00 2025-01-02 14:04:50,830 [INFO] Done installing firmware flash-bin 2025-01-02 14:04:50,830 [INFO] Done recovering imx28 board 2025-01-02 14:04:50,830 [INFO] Done recovering imx28 board
I did add the following entries, trying to match a similar config that worked for an OrangePi R1 I was using to confirm the concept:
CONFIG_USB_FUNCTION_ACM=y CONFIG_USB_TTY=y CONFIG_CONSOLE_MUX=y CONFIG_USE_PREBOOT=y CONFIG_PREBOOT="setenv stderr serial,usbacm; setenv stdout serial,usbacm; setenv stdin serial,usbacm"
This results in the OrangePi R1 enumerating as a new CDC-ACM device once it has booted and executed the PREBOOT command. Unfortunately, I don't get a similar result from the Wink Hub. And without the console UART, it's really difficult to debug what is going wrong :-(
Does anyone have an i.MX28 target that they might be able to use to confirm the basic configuration works? Many thanks!
Regards,
Rogan