On Feb 13, 2008, at 2:22 PM, Bartlomiej Sieka wrote: > Kumar Gala wrote: > [...] >>>>> - The load_image routine (and consequently imload commad) will >>>>> not work when the image is stored in Data Flash. >>>> what's the issue here? >>> >>> Please have a look at code under CONFIG_HAS_DATAFLASH in >>> get_kernel() >>> (formerly in do_bootm()), especially the read_dataflash() >>> function. The >>> issue is that you have to copy data from Data Flash in a specific >>> way in >>> order to have random access to it. So for example this line in >>> your code: >>> type_name = image_get_type_name (image_get_type (hdr)); >>> will effectively try to access hdr->ih_type, which will not work >>> when >>> hdr is an address in Data Flash. >> Just to be clear, at a quick glance, I assume load_image will work >> ok from do_bootm() but not from do_imload(). (since do_bootm is >> calling get_kernel). > > Correct.
Ok, I don't know much about the DATAFLASH device, but is it any different than reading from something like NAND or a HD? It seems like we shouldn't burden the code w/providing special handling for accessing it if its not directly memory accessible like NOR flash is. - k ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
