On 9/16/26 2:47 PM, Stefan Eichenberger wrote:
Hello Stefan,
[...]
In this scenario I assume the ordering is correct so
ums 1 would select the dwc3 host only controller.
The ordering should respect the aliases enumeration, so ums 0 ... is CI HDRC
and ums 1 is DWC3 . Can you check the U-Boot control DT /aliases node to be
sure the ordering there is as expected ?
=> fdt addr $fdtcontroladdr
=> fdt print /aliases
aliases {
can0 = "/soc/bus@44000000/can@443a0000";
can1 = "/soc/bus@42000000/can@425b0000";
eeprom0 = "/soc/bus@44000000/i2c@44350000/eeprom@50";
ethernet0 =
"/soc/system-controller@4cde0000/pcie@4ca00000/ethernet@0,0";
ethernet1 =
"/soc/system-controller@4cde0000/pcie@4ca00000/ethernet@8,0";
i2c0 = "/soc/bus@44000000/i2c@44350000";
i2c1 = "/soc/bus@42000000/i2c@42540000";
i2c2 = "/soc/bus@42000000/i2c@42530000";
i2c3 = "/soc/bus@42000000/i3c@42520000";
i2c4 = "/soc/bus@42000000/i2c@426b0000";
mmc0 = "/soc/bus@42800000/mmc@42850000";
mmc1 = "/soc/bus@42800000/mmc@42860000";
mmc2 = "/soc/bus@42800000/mmc@428b0000";
rtc0 = "/soc/bus@44000000/i2c@44350000/rtc@32";
rtc1 = "/firmware/scmi/protocol@81";
serial0 = "/soc/bus@42000000/serial@42690000";
serial1 = "/soc/bus@42000000/serial@426a0000";
serial2 = "/soc/bus@44000000/serial@44380000";
serial3 = "/soc/bus@44000000/serial@44390000";
serial4 = "/soc/bus@42000000/serial@425a0000";
usb0 = "/soc/usb@4c200000";
usb1 = "/soc/usb@4c010010";
eeprom1 = "/soc/bus@42000000/i2c@42540000/eeprom@57";
};
I think I found what I missed. When I was originally testing it, the
CI_UDC driver was not a driver model driver, therefore the alias for
usb2 (alias usb0) did not work. Now with the driver model driver, it
indeed works:
Verdin iMX95 # ums 0 mmc 0
UMS: LUN 0, dev mmc 0, hwpart 0, sector 0x0, count 0x3b48000
\
Verdin iMX95 # ums 1 mmc 0
UMS: LUN 0, dev mmc 0, hwpart 0, sector 0x0, count 0x3b48000
No USB device found
Couldn't init USB controller.
So I can drop this patch with the next series, thanks a lot!
That is nice, well done.
