NM wrote: > My problem is solved now after probing the lines, MDC was not showing > any activity. > So, after explicitly setting the PD23 (MDC) to : OUTPUT/GPIO in > mpc8272_ads_pins and it worked in > > I'd previously thought about that, but I was sure that this was being > taken care of, but now that I'm thinking of it, I'm questioning my belief. > I think in the fs_enet/mii-bitbang.c: mdio_dir(..) it is supposed to > take care of this.
No, the mdc pin is static; only bits which need to be changed dynamically are dealt with in mii-bitbang.c. Either the firmware or the platform code should set up static pins. > But why I had to explictly set it initially beats me. > I wonder how this works in standard distribution. It's probably set up by u-boot normally, at least if you boot from ethernet. -Scott _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
