Hi Wolfgang, On 04/16/2014 12:12 AM, Wolfgang Denk wrote: > What I don't understand is wether you actually want to use this radio > transceiver as console interface device in U-Boot, or not. If you > want to use it, then just do, and spend thoughts on restricting access > to legitimate users and uses.
I do not want to use the radio transceiver as console interface, but maintain the possibility to connect a serial cable to the same UART when I messed it up. > You could implement somewhere in the init code a test that checks the > state of the GPIO,and then modifies environment settings (say, > bootdelay, or even bootcnt - so you could auto-switch between bootcmd > and altbootcmd) to behave one way of the other. Actually this could > even be scripted - say in "preboot", so you don't even write a single > line of code. That is a great idea. The following line works fine: #define CONFIG_PREBOOT "if gpio input 8; then setenv bootdelay 0; else setenv bootdelay -1; fi" Thank you very much! Greetings, Florian _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
