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TI Home » TI E2E Community » Support Forums » Digital Signal Processors (DSP) » DaVinci™ Video Processors » DM3x DaVinci Video Processor Forum » Announce: Very Fast Boot (0.5 sec)
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Announce: Very Fast Boot (0.5 sec)

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Constantine
Posted by Constantine
on Dec 03 2009 05:56 AM
Expert2940 points

I am pleased to announce very fast boot for dm365.
It takes 0.5 (half of a second) from kernel initialization (not including u-boot and kernel unzip) till command line prompt.

Download ready uImage with root FS and test it: http://www.makelinux.net/ti/fastboot/

Boot time measured by printing  /proc/uptime from boot script.

Solution:

  • Linux kernel 2.6.18 from MontaVista Linux 5
  • minimal kernel configuration with some source code tuning. Kernel configuration located in /proc/config.gz
  • Root FS implemented with Busybox and connected as Init RAM FS and included in uImage. Busybox configuration located in /etc/busybox.config

Enjoy.

See also: Booting Linux dm365 Network Camera in 3.2 seconds


Constantine
Embedded Linux Consulting: http://www.MakeLinux.com/
Linux and TI DaVinci Technology Portal: http://www.Linux-DaVinci.info/

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fast boot init
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  • YHLShareware
    Posted by YHLShareware
    on Dec 13 2009 09:03 AM
    Intellectual830 points

    Hello All,

    When I burned ubl and uboot on nand flash with small block size (hynix 64MB) using DM35x_FlashAndBootUtils_1_50 through serial port, I got error message "No good blocks in allowed range". I used a new nand flash. So please tell me it is why. thanks a lot.

    Best Regards,

    Mark

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  • Alexander Stohr
    Posted by Alexander Stohr
    on Dec 14 2009 07:14 AM
    Intellectual690 points

    @Mark/YHLShareware - you probably posted to the wrong topic.

     

    on topic: nice value - according to the wiki there were already several efforts (total boot in less than 1s) in speeding kernel boot up. the overall value from power on until the user can launch its application is in fact the more interesting one. (and its as well dependent on the size of the kernel image to load and unpack, so a sole linux kernel boot value does not tell anything)

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  • Constantine
    Posted by Constantine
    on Jan 09 2010 17:29 PM
    Expert2940 points

    Thanks.

    Time of loading kernel from flash depends from flash type NAND/NOR, throughput, UBL/u-boot configuration and eventually kernel and FS size.


    Constantine
    Embedded Linux Consulting: http://www.MakeLinux.com/
    Linux and TI DaVinci Technology Portal: http://www.Linux-DaVinci.info/

    Please consider to   Verify the Answer   if applicable

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  • Constantine
    Posted by Constantine
    on Jun 21 2010 13:26 PM
    Verified Answer
    Verified by Constantine
    Expert2940 points

    Please read update:  Booting Linux dm365 Network Camera in 3.2 seconds


    Constantine
    Embedded Linux Consulting: http://www.MakeLinux.com/
    Linux and TI DaVinci Technology Portal: http://www.Linux-DaVinci.info/

    Please consider to   Verify the Answer   if applicable

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  • king king
    Posted by king king
    on Aug 10 2011 22:17 PM
    Intellectual650 points

    i  want to make a nfs file with busybox1.13.3 on platform DM365.but it can not run the /sbin/init.

    if  i replace the /sbin/init with the montavista/nfs/sbin/init,it is right.

    my cross_compile of busybox  is arm-linux-gcc3.3.2.

    and my kernel  is arm_v5t_le-gcc.

    can you tell me why the busybox/sbin/init can not run.

    is it the compiler can not match?

    and can you tell which kind of busbox should i use to make?

    thx

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