Part Number:66AK2H12
We are using 66AK to develop a control platform. Linux runs in the ARM cores. The control tasks are running in the DSP cores. We use SGMII to communicate with other devices both in ARM and DSPcores.The first three SGMII channels are used by ARM ,and the last one is used by DSP core.So we have to use two separate queues to send SGMII datas, one for ARM and the other for DSP. It appears queue number 648 must be used for GbE switch packet transmit,but we need send SGMII datas both in ARM and DSP simultaneously. See the quesion replied on the e2e forum. https://e2e.ti.com/support/processors/f/791/t/784786 Whether 66AK meets our needs? ARM config the first three SGMII serdes,QMSS and PKTDMA,it can work properly until DSP core configs the QMSS and PKTDMA again. Once DSP core reconfig QMSS and PKTDMA, the SGMII work abnormal.
How can we config the QMSS and PKTDMA which may be used both by ARM and DSP? Can you provide an example?