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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
0x00000000
I've checked the clocks:
# devmem 0xFFD040A0 32
0x00000FFF
I've checked the clock divider
# devmem 0xFFD040A4 32
0x00000920
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
0x00000000
Any suggestions?
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I just figure out.
The was a problem with the clock to LPTI PHY - the controller should be stuck.
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I just figure out.
The was a problem with the clock to LPTI PHY - the controller should be stuck.
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