Hello Community,
I want to get up a USB Hub (USB2512 smsc/microchip) on the i.MX28 Port USB0.
But I dont know why, if the i.MX28 comes up (Linux kernel 3.9) it pulls the D+ Line down and the hub think it's a reset. so the Hub won't work.
Do anyone know a possible reason for this?
Solved! Go to Solution.
Hey Fabio,
I had used a to the imx28-evk.dts similar device tree source, in there are the nodes for the usb phys.
But the tip for looking in my dts file was right, i had a double occupancy of the phy reset pin :smileyhappy:
View solution in original post
We use usb hub on mx23 olinuxino and it works fine with 3.9.
Are you enabling power and providing proper reset to the usb hub?
How does your dts file look like?
Hello Fabio,
my dts file looks almost like the imx28-evk one. Do I have to say to the USB Phy wich role of device or host he have to play?
imx23-evk.dts does not have the USB nodes.
I would recommend you to look at arch/arm/boot/dts/imx23-olinuxino.dts instead as there is both usb0 and usbphy0 nodes.
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