From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael S. Zick Date: Fri, 24 Feb 2012 11:10:04 -0600 Subject: [Buildroot] Compile Linux with Buildroot for i.MX28 EVK In-Reply-To: <63D6870D443E63419AC4A0C97B86C092030FCA25@MBXCLUSTER.mdh.local> References: <63D6870D443E63419AC4A0C97B86C092030FCA15@MBXCLUSTER.mdh.local> <63D6870D443E63419AC4A0C97B86C092030FCA25@MBXCLUSTER.mdh.local> Message-ID: <201202241110.06277.minimod@morethan.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net On Fri February 24 2012, Mikael ?sberg wrote: > > This application is for the automotive industry. In a car, the embedded system > must be able to boot within maximum ~1 second. I was thinking, can I use mkimage > to convert vmlinux to an uImage (uncompressed version)? > Or, is there a setting in Buildroot or Barebox where I can specify the builder > to not compress the uImage? > A better solution - Put your device to sleep (suspend to ram). It can __resume__ in less than 1 sec. It only needs to __re-boot__ after loss of battery power (rare). Mike > -------------------------------------------------------------- > Mikael ?sberg > PhD student (Doktorand), Computer Engineering > School of Innovation, Design and Engineering > M?lardalen University, V?ster?s Sweden > Phone: +46(0)21 101502 > Room nr: U1-145 > Mail: mikael.asberg at mdh.se > -------------------------------------------------------------- > ________________________________________ > Fr?n: Yegor Yefremov [yegorslists at googlemail.com] > Skickat: den 24 februari 2012 16:10 > Till: Mikael ?sberg > Kopia: buildroot at busybox.net > ?mne: Re: [Buildroot] Compile Linux with Buildroot for i.MX28 EVK > > I don't know, if it is possible to pack vmlinuz in uImage. Why do you need this? > > On Fri, Feb 24, 2012 at 3:33 PM, Mikael ?sberg wrote: > > > > Ahh ok. Do you know how to create an uImage which is not compressed? > > > > -------------------------------------------------------------- > > Mikael ?sberg > > PhD student (Doktorand), Computer Engineering > > School of Innovation, Design and Engineering > > M?lardalen University, V?ster?s Sweden > > Phone: +46(0)21 101502 > > Room nr: U1-145 > > Mail: mikael.asberg at mdh.se > > -------------------------------------------------------------- > > ________________________________________ > > Fr?n: Yegor Yefremov [yegorslists at googlemail.com] > > Skickat: den 24 februari 2012 15:06 > > Till: Mikael ?sberg > > Kopia: buildroot at busybox.net > > ?mne: Re: [Buildroot] Compile Linux with Buildroot for i.MX28 EVK > > > > This is zImage with u-boot specific wrapper. uImage will be created > > from zImage using mkimage tool. > > > > Yegor > > > > On Fri, Feb 24, 2012 at 2:53 PM, Mikael ?sberg wrote: > >> Hi, > >> > >> Ok, but is uImage a compressed file like zImage? If yes, can I de-compress it somehow? > >> > >> Regards > >> > >> -------------------------------------------------------------- > >> Mikael ?sberg > >> PhD student (Doktorand), Computer Engineering > >> School of Innovation, Design and Engineering > >> M?lardalen University, V?ster?s Sweden > >> Phone: +46(0)21 101502 > >> Room nr: U1-145 > >> Mail: mikael.asberg at mdh.se > >> -------------------------------------------------------------- > >> ________________________________________ > >> Fr?n: Yegor Yefremov [yegorslists at googlemail.com] > >> Skickat: den 24 februari 2012 14:33 > >> Till: Mikael ?sberg > >> Kopia: Baruch Siach; buildroot at busybox.net > >> ?mne: Re: [Buildroot] Compile Linux with Buildroot for i.MX28 EVK > >> > >> AFAIK it is always uImage format for both u-boot and barebox. RedBoot > >> has used zImage. > >> > >> Yegor > >> > >> On Fri, Feb 24, 2012 at 2:19 PM, Mikael ?sberg wrote: > >>> Hey, > >>> > >>> Ok great, thx! > >>> > >>> One last thing, depending on which bootloader that is used, i.e., u-boot, barebox etc., does it matter which kernel image that is used for the boot (zImage, uImage, vmlinux)? > >>> If I use barebox, which image can I use? (I prefer an uncompressed kernel) > >>> > >>> Kind regards > >>> > >>> -------------------------------------------------------------- > >>> Mikael ?sberg > >>> PhD student (Doktorand), Computer Engineering > >>> School of Innovation, Design and Engineering > >>> M?lardalen University, V?ster?s Sweden > >>> Phone: +46(0)21 101502 > >>> Room nr: U1-145 > >>> Mail: mikael.asberg at mdh.se > >>> -------------------------------------------------------------- > >>> ________________________________________ > >>> Fr?n: Baruch Siach [baruch at tkos.co.il] > >>> Skickat: den 23 februari 2012 18:17 > >>> Till: Mikael ?sberg > >>> Kopia: buildroot at busybox.net > >>> ?mne: Re: SV: [Buildroot] Compile Linux with Buildroot for i.MX28 EVK > >>> > >>> Hi Mikael, > >>> > >>> Please keep the list in Cc. > >>> > >>> On Thu, Feb 23, 2012 at 02:35:37PM +0100, Mikael ?sberg wrote: > >>>> Hi, > >>>> > >>>> Thanks a lot for the info! > >>>> > >>>> I guess its easier to use Barebox, then you just also specify mxs_defconfig > >>>> when you configure. > >>> > >>> You original question was about the Linux kernel not Barebox. > >>> > >>> Barebox includes support for the TX28 board which is based on i.MX28 > >>> (tx28stk5_defconfig). > >>> > >>>> One more thing, since i.MX28 uses the "454MHz ARM926EJ-S" processor, should > >>>> I choose "arm926t" in the config? > >>> > >>> The kernel (and Barebox) defconfig files should include all the relevant > >>> settings, including this one. > >>> > >>> baruch > >>> > >>>> Fr?n: Baruch Siach [baruch at tkos.co.il] > >>>> Skickat: den 23 februari 2012 13:38 > >>>> Till: Mikael ?sberg > >>>> Kopia: buildroot at busybox.net > >>>> ?mne: Re: [Buildroot] Compile Linux with Buildroot for i.MX28 EVK > >>>> > >>>> Hi Mikael, > >>>> > >>>> On Thu, Feb 23, 2012 at 12:22:09PM +0100, Mikael ?sberg wrote: > >>>> > Does anyone have experience with compiling Linux kernels with Buildroot for > >>>> > i.MX28 EVK? > >>>> > I'm not sure which board name to be set for u-boot for example... > >>>> > Also, which defconfig should be used, imx27ads_defconfig or versatile_defconfig perhaps? > >>>> > > >>>> > Any help or pointers would be valueable! > >>>> > >>>> Although it's named i.MX28, this chip is very different from i.MX27, but is > >>>> similar to i.MX23. Latest kernels (since v3.0) contain mxs_defconfig, which > >>>> should be suitable for i.MX28 (and i.MX23). > >>>> > >>>> baruch > >>> > >>> -- > >>> http://baruch.siach.name/blog/ ~. .~ Tk Open Systems > >>> =}------------------------------------------------ooO--U--Ooo------------{= > >>> - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il - > >>> _______________________________________________ > >>> buildroot mailing list > >>> buildroot at busybox.net > >>> http://lists.busybox.net/mailman/listinfo/buildroot > _______________________________________________ > buildroot mailing list > buildroot at busybox.net > http://lists.busybox.net/mailman/listinfo/buildroot > > >