*The xloader must be signed before copy it into the flash memory.
You should copy the x-loader in the firsts 4 blocks (first 512 KiB), this is not a formated partition due the ROM not permits boot from a formated partition in flash, you should use flash_eraseall and nandwrite for copy x-loader in the first blocks.<pre><<u>>Suggested procedure:<</u>>
Erase and copy the x-loader into the first flash partition:
$nand_eraseall /dev/mtd0
for file in `ls split-a?`; do cat $file >> x-load-ddp.bin.ift; cat $file >> x-load-ddp.bin.ift; done
This last command generate a file named x-load-ddp.bin.ift this is the x-loader for copy it in the OneNand.</pre>==== <span style="display: none; " id="1299156619608S"> </span>Boot Partition ====
*fs used jffs2 zlib compressed filesystem.
*Suggested size: 0xC00000 (12 MiB).
X-Loader only support jffs2 partitions for boot partition.
<u>Prepare the boot partition for the first use:</u>
<u></u>You should follow the same procedure used for copy the x-loader in the first partition.
<pre>Suggested procedure:
Erase and copy the x-loader into the first flash partition:
Your initial boot partition can be a empty file the first time.
</pre><u>Next uses:</u>
<u></u>You can mount the partition over your boot directory in the rootfs
<pre>$mount /dev/mtdblck1 /boot</pre>And you can use the cp command for copy your kernel and igep.ini configuration file.<pre>$cp igep.ini /boot</pre>==== Rootfs Partition ====
*fs (your prefered fs supported by linux, maybe a good choice it should be ubifs)*Size, all or you can create more partitions if you wish ... :)
== Boot Priority ==
XLoader first try load from mmc and if it fails then try from OneNand.<br>
'''MLO (x-loader), igep.ini, zImage from MMC'''<br>If all it's present in the mmc it don't try to boot from Onenand.<br>
'''MLO (x-loader) in MMC, igep.ini and zImage in Onenand.'''<br>If only MLO it's provided this one try to load the other information from the Onenand.
It means that XLoader always try to load the information from MMC and if it fails then try to load from OneNand.
<br>== Configuration file: igep.ini ==
=== ===[http://en.wikipedia.org/wiki/INI_file This entry in wikipedia] can help you how a ini file it's structured.
=== <br> 4 Settings & ConfigurationThe actual XLoader can handle two kind tags: ===
====== ================ ======[kernel] Used for internal XLoader setup.<br>
4.1 MMC Boot<br>------------<br>Get a new mmc and create two partitions, [kparams] Used for pass the first one must be fat (you can follow <br>this howto: http://code.googlelinux kernel parameters.com/p/beagleboard/wiki/LinuxBootDiskFormat)<br>In this first partition (boot partition) you should copy:
*x-loader.bin.ift (you must rename this file to MLO) / This is a signed image using contrib/signGP tool<br>* igep.ini<br>* Your desired === TAG: [kernel image.] ===
Don<span class="Apple-style-span" style="line-height: normal; -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px;" /><span style="color: rgb(255, 0, 0); ">''t use a uImage kernel format # kaddress (from ubootKernel copy destination address), only kernel formats be supported. ''</span>
Compilation Example:<br>$make ARCHspan class=arm CROSS_COMPILE"Apple-style-span" style=arm"line-height: normal; -webkit-border-horizontal-spacing: 1px; -nonewebkit-linuxborder-gnueabivertical- zImage modules spacing: 1px;">kaddress=0x80008000</span>
Read the kernel documentation about kernel images<span style="color: rgb(255, 0, 0); ">''<span class="Apple-style-span" style="line-height: normal; -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px; "># rdaddress (RamDisk copy destination address)</span>''</span<span class="Apple-style-span" style="line-height: normal; -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px;">rdaddress=0x84000000</span> <span style="color: rgb(255, 0, 0); ">''<span class="Apple-style-span" style="line-height: normal; -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px; "># Serial Hardware ID</span>''</span <span class="Apple-style-span" style="line-height: normal; -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px;">serial. low=00000001serial.high=00000000</span> <span class="Apple-style-span" style="line-height: normal; -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px;" /><span style="color: rgb(255, 0, 0); ">''# Revision Hardware ID''</span> <span class="Apple-style-span" style="line-height: normal; -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px;">revision=0001</span> <span style="color: rgb(255, 0, 0); ">''<span class="Apple-style-span" style="line-height: normal; -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px; "># Kernel Image Name</span>''</span<span class="Apple-style-span" style="line-height: normal; -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px;">kImageName=zImage-test</span> ''<span style="color: rgb(255, 0, 0); "><span class="Apple-style-span" style="line-height: normal; -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px; "># Kernel Ramdisk Name</span></span>''<span style="color: rgb(255, 0, 0); " /><span class="Apple-style-span" style="line-height: normal; -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px;">kRdImageName=rdImage-test</span> <br>
4.2 Setup igep.ini file<br>------------------------<br># Note this format permits use the characters<br># '#' and ';' as comment check file size restrictions
d) Sign x-loader<br>You should execute contrib/signGP for sign the xloader that resides inside the flash memory.<br>contrib/signGP x-load.bin <br>The signed x-loader it's named: x-load.bin.ift
<br>6 Contribution & Support & Report Bugs<br>======================================<br>Contributions to this project be welcome and you can send your patches to support@iseebcn.com<br>or you can use the igep forum for it.<br>You can access to IGEP-x-Loader repository using our git at git.igep.es<br>IGEP IRC Channel: http://webchat.freenode.net/?channels=igep<br><span style="display: none; " id="1299156619619E"> </span><br>
