> On 16/12/2011 11:39, Marek Vasut wrote: > >> Hi Marek, > > > > Hi Stefano, > > > > DISCLAIMER: I'm terribly tired today, had early class. > > ok, I understand..;-) > > > You disable fuses and use ethaddr. Why do we need them? We don't, but the > > hardware is in the CPU and someone might use it so let's support it. > > Exactly - see also othe IMX SOCs. > > >> In a standard way, the environment must be adapted for each board to > >> store the MAC address in the ethaddr variable. The reason to get the MAC > >> directly from the hardware is that it is not required a specific initial > >> setup for each board, and that simplifies the production and the > >> delivery of the boards. > > > > Sure, but the OCOTP capacity here is limited. But there was approach from > > Fabio/me how to make the OCOTP good enough for two NICs even. > > And this is nice. > > > * The idea is to let user configure the top 2 bytes per-device (which is > > the most likely case). > > This is exactly what I meant. > > > * Introduce mac_modify(int fec, char *mac) function, which will be called > > from imx_get_mac_from_fuse() > > * The function will adjust the MAC, for example by setting top two bytes > > to preconfigured data, bottom four bytes from OCOTP and the last bit of > > the MAC from "int fec", which is 0 for FEC0 and 1 for FEC1. This should > > be sufficient for most people. > > Exactly ! > > > * The function will be weak so it can be overridden to your hearts > > content. > > Right ! > > Stefano
And it was mostly Fabio's idea I'd say ;-) M _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot