From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ulf Samuelsson Date: Wed, 03 Feb 2010 14:29:51 +0100 Subject: [Buildroot] Confusion with building at91bootstrap In-Reply-To: <411b.4b68ef33.cfddb@getafix.xdna.net> References: <411b.4b68ef33.cfddb@getafix.xdna.net> Message-ID: <4B697A4F.7020307@atmel.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Cameron Hutchison skrev: > I am trying to build an image for an AT91SAM9260EK board and I'm getting > a little confused with the build ot at91bootstrap. I'm using BR 2009.11 > > When at91bootstrap is configured, the buildroot makefile > (at91bootstrap.mk) runs "make at91sam9260ek_defconfig" which sets up > at91bootstrap for building for my specific board. > > That config file defines IMG_SIZE to be 0x40000 and passes > -DIMG_SIZE=0x40000 to the compiler. > > The buildroot makefile passes -DIMG_SIZE=0x32000. This value comes from > the buildroot config. > > This causes a build warning that IMG_SIZE is redefined. Ignore it. > > Apart from that I don't yet know what the correct image size should be, > it looks like the at91bootstrap integration into buildroot is broken. > The option to set the image size in the BR config cannot work, since the > at91bootstrap (2.10) source will attempt to override it anyway. Am I > missing something here? > This is the size of the image which is loaded into SDRAM. Typically u-boot. I think the idea is that buildroot can override the config file. > Also, the at91bootstrap defconfig for this board adds the suffix of > "card" to the output file, making that filename contain "dataflashcard" > when I have configured for "dataflash" not "dataflashcard". I dont yet > know what the difference is between these (my board does not appear to > have any sort of card or slot for one), so I'm not sure what should be > done here, but it appears inconsistent. dataflashcard = boot from NPCS0 dataflash = boot from NPCS1 Easy to understand, if you use the SAM9260EK. You want to use the latest = 2.13. 2.13-rc# has some issues. Need a modification of the recipe in buildroot. BR Ulf Samuelsson > > Finally, is this the best place to discuss at91bootstrap and other > issues related to this board and buildroot, or is there a better forum? > > Thanks > _______________________________________________ > buildroot mailing list > buildroot at busybox.net > http://lists.busybox.net/mailman/listinfo/buildroot