Steven, in message <D73A25AA6E54D511AD74009027B1110F0F30B0 at ORION> you wrote: > > Does anyone know how I can run a program in flash from my embedded linux > kernel that is also running in flash? Below is the code that I tried but it
I don't think your kernel is running from flash. It is stored in flash, but usually then it gets loaded (and probably uncompressed) into RAM, and is running from RAM. YOu can do similar things whith your own code: you can put it in flash, and load it from flash into RAM to run it. This requires that you have some way to access the flash memory - under Unix this requires either a basic device driver (character device), or a more sophisticated device driver (block device) that allows you to put a filesystem in flash. > int addr = 0xfff80000; You cannot access arbitrary physical addresses from an application program. Linux uses virtual memory, and you should get used to the idea that you cannot access physical memory or devices except through some special interfaces provided by the OS (system calls which usually require some device drivers). Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de I must follow the people. Am I not their leader? - Benjamin Disraeli ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
