We don't really want to have m68k-specific code in a generic file. Create a new arch-specific function to hold it, and move it into that. Make the function weak so that any arch can implement it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Angelo Dureghello <angelo.dureghello@timesys.com> Tested-by: Angelo Dureghello <angelo.dureghello@timesys.com>