Hello,
I try to start the ENET moduleon the IMX8QM but so far I didn't arrive to send a packet.
I start the power of the module with sc_pm_set_resource_power_mode(SC_IPC_CH, SC_R_ENET_0, SC_PM_PW_MODE_ON);
then I start the clock SC_PM_CLK_BYPASS, SC_PM_CLK_MISC0 and SC_PM_CLK_PER.
I initialize 2 buffer descriptor of Tx and Rx.
I initialize the register ECR, TFWR, MRBR, RDSR, TDSR and RCR (see code attach)
And finally I put the field READY of the TxBD to 1 so start the transmission.
But after that nothing happen, I add a loop that wait the READY field of TxBD to come back to 0 (end of transmission) but it never happen.
I don't know what I forget to initialize to make sure the transmission start.
Best regards
Alexandre
Hi Alexandre
one can check sect.4.4 Fast Ethernet Controller (FEC) attached Linux Manual
and linux driver sources:
fec_main.c\freescale\ethernet\net\drivers - linux-imx - i.MX Linux kernel
imx8qm-mek.dts
imx8qm-mek.dts\freescale\dts\boot\arm64\arch - linux-imx - i.MX Linux kernel
Best regards
igor
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