In standalone applications, it seems that the execution of printf function in U-Boot is dependent on the value of register R9, which is setup in app_startup. But r9 can be used by your program at the decision of gcc compilation which is not aware of this dependence. This is especially the case if +O2 is used!
My version is U-Boot 2014.10 Regards, Dashi Cao _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
