On Fri, Jul 31, 2009 at 12:48:37PM -0700, Tim Bird wrote: > > Those fractions-of-seconds boot times are beyond the reach of the > > 200 MHz-class ARM9 processors and similar, where it takes two or > > three seconds just to load and uncompress the kernel from NOR or > > NAND flash. > > While I don't disagree from a practical standpoint - at Sony using XIP > we have been able to finish kernel boot on a 192 MHZ ARM9 in 186 > milliseconds. In the lab, anyway? Wow, that's pretty fast; if that would be possible for standard scenarios, it would indeed be better to do everything on the kernel side. Can you elaborate about the details of that experiment? Was that normal XIP from NOR? What size has this kernel been? rsc -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
