On Saturday, September 27, 2014 at 06:46:24 PM, Sean Cross wrote: > I asked Bunnie about this, and the routing is 50 ohms. > > On 24 September, 2014 5:40:59 pm GMT+08:00, Marek Vasut <ma...@denx.de> wrote: > >On Wednesday, September 24, 2014 at 04:46:42 AM, Nikolay Dimitrov > > > >wrote: > >> Hi Marek, > >> > >> Following are some comments about FEC Ethernet: > >> > >> On 09/23/2014 01:18 PM, Marek Vasut wrote: > >> > +#define ENET_PAD_CTRL \ > >> > + (PAD_CTL_PKE | PAD_CTL_PUE | \ > >> > + PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ > >> > + PAD_CTL_DSE_40ohm | PAD_CTL_HYS) > >> > + > >> > >> PAD_CTL_SPEED_MED falls on reserved bits (7-6).
Fixed. [...] > >> > + > >> > + gpio_direction_output(IMX_GPIO_NR(3, 23), 0); > >> > + gpio_direction_output(IMX_GPIO_NR(6, 30), 1); > >> > + gpio_direction_output(IMX_GPIO_NR(6, 25), 1); > >> > + gpio_direction_output(IMX_GPIO_NR(6, 27), 1); > >> > + gpio_direction_output(IMX_GPIO_NR(6, 28), 1); > >> > + gpio_direction_output(IMX_GPIO_NR(6, 29), 1); > >> > + gpio_direction_output(IMX_GPIO_NR(6, 24), 1); > >> > +} > >> > >> I think that setting the iomuxes immediately one after the other > > > >doesn't > > > >> achieve the intended goal. After the 2nd iomux setup, the pads are > >> connected to the FEC, not to the GPIOs. Good point, moved the second mux below the GPIO settings. But what about the reset timing? Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
