> Hello u-boot users list, > > I am experiencing a problem concerning variables being set and later > getting lost. > > In order to boot a Linux on a quite small plattform (Eddy CPU: > http://sysbas.en.ec21.com/Embedded_CPU_Module--1904028_1904479.html ), I > have to reset the variable "OS_SDRAM" from its initial value of > "0x20000000" to "0x21000000". If I don't do so, the bootloader reports > problems extracting my kernel. This must be due to my kernel being > bigger than expected by u-boot. > > These are the steps, that I take: > > [code] > setenv OS_SDRAM 0x21000000 > saveenv > reset > [/code] > > Anyway, this way, it works fine. > > Sometimes, the bootloader looses this configuration and resets its > variable "OS_SDRAM" back to its default value. Once, the bootloader has > reset this value, it cannot boot anymore(well, of course not, since I > had to manually alter this value in order to make it boot my linux). > > Annoyingly, I cannot surely reproduce this error. I tried rebooting it > over 3 days in 2-minute-steps and the error won't occur. In addition, I > tried giving random input to the console of u-boot for 3 days (again in > 2-minute-steps) and still the error won't come up.
Probably something's overwriting your uboot in ram. Anyway, is the board supported mainline? > > Two questions: > > 1. What else might be the cause of this? > > 2. How could I prevent u-boot from resetting to its default value? > > I'd be happy for any kind of help. > > Best regards, > Dennis Try getting mainline support for the board, that way you'll have the latest fixes. M _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
