TSEMAC SW reset bit never cleared CIII+KSZ9021GQ

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Hm, nothing special here... Check differences in MDIO registers between 88E1111 and KSZ9021. E.g. check if software reset bit is in the same place?

P.S. I suppose ethernet is not working right?

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Hm, i think software reset it is register of TSE IP?

Embedded Peripherals IP

User Guide

Table 25–7. Control Register

SW_RESET

Software can reset the core by writing to this bit twice. Upon the

second write, the core is reset. The logic which sequences the

software reset process then resets itself automatically.

Executing a software reset when a DMA transfer is active may

result in permanent bus lockup until the next system reset.

Hence, Altera recommends that you use the software reset as

your last resort.