Hi Kevin, > > If so, the only requirement on this should be that this "register" > > have the same address across all davinci derivatives. > > > > EDMA is the only module that meets this criterion, since it is > > consistently present @ 0x01c00000 across all socs (so far). > > That seems like a reasonable option since we can assume that EDMA is > disabled during early uncompress/boot. > > Maybe the channel src or dest regs?
The only problem is that EDMA CC will need to be brought out of reset either in the uncompress init code or in the bootloader. Wouldn't it be cleaner to use a few words of memory between the boot params and zreladdr? For example, 16 bytes @0x80007ff0 can be used to pass in uart phys, virt, and shift. This should work cleanly across socs, and is less dependent on MMR layout should some future architecture change things. Regards Cyril. _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
