You seem to need ohci support. This is one of the 2 possible USB 1.1 bus drivers, depending on your USB host chip. And the hardware dictactes which driver we should use, not the other way around...
ehci is the (unique) driver for USB 2.0.
And at the occasion, activate hid support for your mouse.
When I look at your output, I would say, you are not booting the kernel you just compiled: could it be the case?