On Sun, Apr 20, 2008 at 05:04:14PM +0100, Jamie Lokier wrote: > I was thinking this: > > Hamish Moffatt wrote (Message-ID: <[EMAIL PROTECTED]>): > > Sorry I should've said 512MiB perhaps: 512 megabytes. > > UBI attach time appears to be about 6 seconds. > > If 6 seconds is as fast as it can be done, annoying but fair enough. > > Adding _another_ 6 seconds to the boot time seems a lot to me.
Yes. I have a prototype system here booting a minimal system from NOR flash then booting the full system from NAND via kexec. I'm suffering my 6 seconds of UBI attach time twice each boot. Six seconds does seem to be abnormal though - I don't have a hardware NAND controller so it's all software ECC, GPIO for chip selects etc. The performance is said to be much better with a hardware controller. > To remove the double scan: > > > > However, if there was a protocol for bootloader to pass the scan > > > results to the booted kernel, that would be very nice. That would certainly help my case. Fortunately my device is usually always-on and therefore boot time is not critical, and we don't suspend/resume. Hamish -- Hamish Moffatt VK3SB <[EMAIL PROTECTED]> <[EMAIL PROTECTED]> ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
