I'm trying to use cyclone V as a device USB but I'm not being able - all the values that I read from this device are zero.
On linux I have the following error:
dwc2 ffb40000.usb: s3c_hsotg_corereset: reset failed, GRSTCTL=00000000
I've checked the resetmngr (I've also tried to reset it):
# devmem 0xFFD05014 32
I've checked the clocks:
# devmem 0xFFD040A0 32
I've checked the clock divider
# devmem 0xFFD040A4 32
And I have no idea why I can't read/write the USB controller device.
I always read zero instead reading the Synopsys ID Register (0x4F54293A):
# devmem 0xFFB40040 32