= Summary<br><br> =X-Loader, an initial program loader for Embedded boards based on OMAP processors.
XAccess to the latest version [http://git.isee.biz/?p=pub/scm/igep-x-loader.git;a=summary here] and read the [http://git.isee.biz/?p=pub/scm/igep-x-Loader, an initial program loader .git;a=blob_plain;f=ISEE_README.txt;h=909c072bc2512026342d802b3ef1b7e8f703458b;hb=4bb2ebd99d5b86522d786ac5b074066e9841799c ISEE_Readme.txt] for Embedded boards based on OMAP processorsget the latest release information. <br>
= Features and Limitations<br> Why IGEP-Xloader=Some important reasons exist for using this bootloader on IGEP boards.
== Improvements & Modifications<br> Security==This is one of the most important reasons why we develop this new IGEP X-loader. you will Probably know that flash devices get new bad memory blocks with normal usage that can make unusable or can damange the software residing inside the flash (ex: upgrading the software, copying a new kernel ... ), in these cases your board won't be usable anymore if you don't use a right nand filesystem that insures data integrity. Using the old schema we've 4 important partitions on flash without any protection, x-loader, u-boot, u-boot enviroment and kernel.
*Malloc/free functionality. *Mtd framework and onenand support, removed IGEP X-loader resolves this situation as the old onenand drivers. *Jffs2 support using mtd & onenand support (Read Only). *Crc32 and zlib. *Jffs2 zlib compression support (Read Only). *Dual boot mmc & onenand with mmc highest priority. *Linux kernel boot directly (Support for 2.6.22 configuration and highest version kernels) *Linux kernel supported images: vmlinuz, bzImage and zImage. *Support for loading Linux Ram disk (EXPERIMENTAL) *"ini" files parser. *The configuration resides in reside inside a plain txt (ini format file). *Support Windows & Linux formating ini files. *Boot from mmc, onenand, or mix with mmc highest priority. *Codeblocks project and compilation rules. *Support for gcc 4.5.1jffs2 partition.<br>
== Limitations<br> Maintenance==With the old schema 3 different software existed (x-loader, u-boot, kernel) that did exactly the same job, so you had to reconfigure the board, increasing the complexity of maintenance for the board system and provide a major bug source because we had to assure that all software was aligned with all changes. Also, from a second point of view, we did the job three times so the boot process was more complex and slow.
*The ini configuration file ==Easy to use==With this new approach use the software it's limited more easy to use, if you've the boot information stored inside a jffs2 partition you can use the linux kernel to max size: 16 KiB *Kernel Command line parameters access it's limited directly without the use of any flash tool tomodify the software (ex: 4 KiB *Malloc using nandwrite it's limited to 32 MiBrisky due to its inability to guarantee data integrity over the Nand Flash memory). *Cannot write comments in lines with tag=value<br>
== TODO<br> Upgrade faster and easy==Upgradint to a new kernel it's easier and faster, you only need to copy the new kernel inside the boot partition, copy your new igep.ini inside and reboot the board with all security.
=Features and Limitations===Improvements & Modifications==* Added malloc/free functionality.* Added mtd framework and onenand support, removed the old onenand drivers.* Added fs jffs2 support using mtd & onenand support (Read Only).* Added crc32 and zlib.* Jffs2 zlib compression support (Read Only).* Dual boot mmc & onenand with mmc highest priority.*Added Linux kernel boot directly (Support for IGEP0030 - Family boards2.6.22 and highest version kernels)* Linux kernel supported images: vmlinuz, bzImage and zImage. *Support for other OMAP/DM/AM processor boardsloading Linux Ram disk (EXPERIMENTAL)* Added "ini" files parser.* The configuration resides in a plain txt (ini format file).* Support Windows & Linux formating ini files.* boot from mmc, onenand, or mix with mmc highest priority. *Remove Added codeblocks project and compilation warningsrules.* Added support for vfat32 extra names.* Configure TPS65950 voltage to 1.35V if it's used a DM3730 processor. *Comments Added new parameter MachineID in kernel tag lines<br>file, with it you can* - configure the kernel board ID setup* Added new parameter buddy for kernels 2.6.35.y and 2.6.37.y* Optimize some LPDDR Memory configuration values* Removed some OneNand Debug information* Removed some FAT incorrect warnings* Added Support Initial Ram disk* Reconfigure Makefile options* Support Kernels 2.6.35, 2.6.37, 3.6.4* Added support for boot ARM binary files (such u-boot or QNX kernel)* Support for Numonyx, Micron and hynix POP Memories.* Memory autodetection.* Added GPTimer functionality.* Support Numonyx, Micron and hynix memories.* DMA Copy support* Omtimized memcpy and memset functions.* DSS Video driver.* Support ISEE toolchain yocto 1.2 based.
== STATUS<br> Limitations==* The ini configuration file it's limited to max size: 16 KiB* Kernel Command line parameters it's limited to: 4 KiB* Malloc it's hardcode limited to 32 MiB.* Video is limited to 1024 x 768 x 16 bits.* Video Memory is limited to 1280 x 720 x 32 bits.
==TODO==*Support IGEP0020 Revision B & C family boardsRemove compilation warnings. *Tested with IGEPv2 (DM3730@1Ghz and 512/512 MB Ram/Onenand) System Rescue.*Tested with IGEPv2 (AM3703@1Ghz Improve boot selection and 512/512 MB Ram/Onenand) priority.*Tested with IGEPv2 (OMAP3530@720Mhz and 512/512 MB Ram/Onenand)<br>Remove unused code.
= Build Procedure<br> =STATUS==* Support:** IGEPv2 DM3730** IGEPv2 OMAP3530** IGEP COM MODULE DM3730** IGEP COM PROTON DM3730** IGEP COM MODULE AM3703
== Build VERSION CHANGES==[2.1.0-1] This version only can be build with Ubuntu Cross Compiler gcc linaro 4.5.1 ==2 other compilers be not supported.
<span style="font[2.1.0-style: italic;1] Removed some uncontrolled "><span style="font-weight: bold;printf">Enviroment</span></span>'''''Ubuntu 10with incorrect information.10'''''
=== Install the cross compiler if you not do it before[2.<br> ===<pre>apt-get install cpp-41.5-arm-linux-gnueabi g++0-41] Modified some code under __DEBUG__ option.5-arm-linux-gnueabi</pre> === Setup the board settings<br> ===<pre>make igep0020-sdcard_config</pre> === Build<br> ===<pre>make</pre> === Sign the binary x-loader<br> ===
''You should [2.1.0-1] Added Support for TPS65950-A3 initialization at 1.35V [2.1.0-1] Added support for IGEP Module 0030 [2.1.0-1] Added support dynamic Machine ID selection (same xloader boot IGEPv2 & IGEP Module) ---- [2.1.0-2] ARM Compilation bug resolved ---- [2.1.0-3] Update SDRAM structure initialization [2.1.0-3] Added support for Initial RAM disk [2.1.0-3] Updated Initial RAM disk destination address ---- [2.2.0-1] Update Makefile structure [2.2.0-1] Downgrade the boot processor speed ---- [2.3.0-1] Add NAND flash devices and Micron MT29CXGXXMAXX memories support [2.3.0-2] Add Hynix NAND memorie and IGEP0032 support [2.3.0-2] Added lzo compression schema. ---- [2.3.0-3] Add Support for execute contrib/signGP ARM binaries [2.3.0-3] Bug Fixes related to I and D Cache ---- [2.4.0-1] Added Memory test feature [2.4.0-1] Added some boot information [2.4.0-1] New read_nand_cache function optimized for sign load from NAND [2.4.0-1] BUG resolved: Refresh Setup in Micron & Hynix Memories [2.4.0-1] BUG resolved: Reset Memory controller after initialize Malloc function [2.4.0-1] BUG resolved: Resolve problems updating the xloaderflash content under jffs2 ---- [2.4.0-2] Resolved Memory Autodetection [2.4.0-2] Better hang board led control [2.4.0-2] New read_nand_cache function optimized for load from OneNand [2.4.0-2] Added Hw GPtimer functionality ---- [2.5.0-1] Added System DMA driver. [2.5.0-1] Added optimized memcpy & memset functions. [2.5.0-1] Improved boot speed. [2.5.0-1] Improve NAND driver support. [2.5.0-1] Auto x-loader.bin.ift and MLO generation. [2.5.0-1] Added DSS video support. ---- [2.5.0-2] Fixed System DMA misconfiguration. [2.5.0-2] Improve GPMC timming setup. [2.5.0-2] Added DSS igep.ini variables. [2.5.0-2] Added Support for new memory capacities. [2.5.0-2] Auto x-loader.bin.ift and MLO generation. [2.5.0-2] Minor bug fixes. ---- [2.5.0-3] platform.S: downgrade MPU boot clock from 1GHz to 800 MHz ---- [2.6.0-1] Remove OMAP35xx support [2.6.0-1] New DMA driver, now can handle different DMA channels and transfers [2.6.0-1] GPMC: Add support for use prefetch engine [2.6.0-1] NAND: Added a new Nand driver [2.6.0-1] NAND: Modify memory setup timmings ---- [2.6.0-2] DMA: disable dma_memcpy function due random kernel memory corruption =Pre-Compiled Binaries={| border="1" width="905" cellspacing="1" cellpadding="1"|-! scope="col"|Release! scope="col"|Download link! scope="col"|Support|-||2.6.0-2||[http://downloads.isee.biz/pub/releases/IGEP_xloader/igep-x-loader-2.6.0-2.tar.bz2 igep-x-loader-2.6.0-2.tar.bz2]||[[The_IGEP_X-loader#STATUS | DM3730 Boards]]|-||2.5.0-2||[http://downloads.isee.biz/pub/releases/IGEP_xloader/igep-x-loader-2.5.0-2.tar.bz2 igep-x-loader-2.5.0-2.tar.bz2]||[[The_IGEP_X-loader#STATUS | All OMAP3 Boards]]|-||2.4.'' 0-2<pre>contrib||[http://downloads.isee.biz/pub/releases/IGEP_xloader/signGP igep-x-loadloader-2.4.0-2.tar.bz2 igep-x-loader-2.4.0-2.tar.bz2]||[[The_IGEP_X-loader#STATUS | All OMAP3 Boards]] except IGEP COM MODULE AM3703|-||2.1.bin0-2The signed ||[http://downloads.isee.biz/pub/releases/IGEP_xloader/igep-x-loader it's named-2.1.0-2.tar.bz2 igep-x-loader-2.1.0-2.tar.bz2]||[[The_IGEP_X-loader#STATUS | All OMAP3 Boards]] except IGEP COM MODULE AM3703|-||2.1.0-3||[http: //downloads.isee.biz/pub/releases/IGEP_xloader/igep-x-loader-2.1.0-3.tar.bz2 igep-x-loadloader-2.1.0-3.tar.bz2]||[[The_IGEP_X-loader#STATUS | All OMAP3 Boards]] except IGEP COM MODULE AM3703|-||2.bin2.ift0-1<||[http://downloads.isee.biz/pub/releases/IGEP_xloader/pre> igep-x-loader-2.2.0-1.tar.bz2 igep-x-loader-2.2.0-1.tar.bz2]||[[The_IGEP_X-loader#STATUS | All OMAP3 Boards]] except IGEP COM MODULE AM3703|} =Build Procedure=== Build with IGEP ISEE SDK Yocto Toolchain 1.2=====Download and Install the cross compiler if you not do it before.===Download the toolchain from this [https://www.isee.biz/support/downloads/item/igep-sdk-yocto-toolchain-1-2-2-3 link] and uncompress it as root in your / directory. <pre>Hint: Remember setup the enviroment before build the source: source /opt/poky/1.2/environment-setup-armv7a-vfp-neon-poky-linux-gnueabi</pre>
===
Setup Download the
Enviroment<br> sources from our git repository===<pre>
source git clone git:/
usr/
localgit.isee.biz/
pokypub/
eabi-glibcscm/
environmentigep-
setupx-
arm-none-linux-gnueabiloader.git</pre> ===
Setup the board settings<br> ===<pre>make igep0020-sdcard_config<Get your desired tag /
pre> === Build<br> release===
<pre>make CROSS_COMPILE=armgit checkout <your_desired_release> -
none-linux-gnueabi-</pre> === Sign the binary x-loader ===b <your_name_release>''You should execute contrib/signGP for sign the xloader.'' <pre>
contrib/signGP xgit checkout release-
load2.5.
binThe signed x0-2 -
loader it's named: xb release-
load2.
bin5.
ift0-2-local</pre>
== Build Native =====
Configure Setup the board
settings<br> build setup===<pre>make
igep0020-sdcard_config</pre><pre>Edit the variable CFLAGS and add the option: -fno-stack-protectorCFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -fno-stack-protectorigep00x0_config</pre> === Build
<br> the software===<pre>make
CROSS_COMPILE=arm-none-linux-gnueabi-</pre> === Sign the binary x-loader
(Only versions prior to 2.5.0-x)===
''You should execute contrib/signGP for sign the xloader.''''You should execute contrib/signGP for sign the xloader.''
<pre>contrib/signGP x-load.bin
The signed x-loader it's named: x-load.bin.ift
</pre> = BOOT<br> =
The IGEP X==Build Native=====Download from git repository=== git clone https://git.isee.biz/arm-Loader must reside in the microSD card or in the OneNandboot/igep-x-loader.<br> git git checkout <your_desired_release> -b <your_name_release>
<pre style== MMC Boot =="font-weight: normal;"> git checkout release-2.5.0-2 -b release-2.5.0-2-local</pre>
=== Prepare Configure the microsd card board settings===<pre>make igep00x0_config</pre><pre>Edit the variable CFLAGS and add the option: -fno-stack-protectorCFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -fno-stack-protector</pre>===Build===<pre>make CROSS_COMPILE=arm-none-linux-gnueabi-</pre>===Sign the binary x-loader===''You should execute contrib/signGP for sign the xloader.''
<pre>contrib/signGP x-load.binThe signed x-loader it's named: x-load.bin.ift</pre>=BOOT=The IGEP X-Loader must reside in the microSD card or in the Nand Memory. ==MMC Boot=====Prepare the microsd card===You can follow this howto about how [http://code.google.com/p/beagleboard/wiki/LinuxBootDiskFormat prepare the microsd card]. or [[How to boot from MicroSD Card]]
Get a new mmc microsd card and create two partitions, the first one must be fat fat16/32 and the second one can be formated in any format type supported by linux kernel.<br>
=== Copy the files in the first (FAT) partition ===In the first partition you must copy in this order:
In the first partition # x-loader.bin.ift (you must rename this file to MLO before copy in this orderit) / This is a signed image using contrib/signGP tool# x-loader configuration file [http://git.igep.es/?p=pub/scm/igep-x-loader.git;a=blob;f=scripts/igep.ini;h=ce093fe80c81d8888bf79464f847059b312bba83;hb=HEAD igep.ini] also you can change the configuration file name editing the file: [http: //git.igep.es/?p=pub/scm/igep-x-loader.git;a=blob;f=include/configs/igep00x0.h igep00x0.h] (#define IGEP_BOOT_CFG_INI_FILE "igep.ini")# Your desired kernel image.
#x-loader.bin.ift (you must rename this file to MLO) / This is a signed image using contrib/signGP tool #x-loader configuration file [httpLoad Order://git.igep.es/?p=pub/scm/igep-x-loader.git;a=blob;f=scripts/igep.ini;h=7ecda91b2716d8984d48fa6c5eb5c74b8f0b0959;hb=HEAD igep.ini] also you can change the configuration file name editing the file: [http://git.igep.es/?p=pub/scm/igep-x-loader.git;a=blob;f=include/configs/igep0020-sdcard.h igep0020-sdcard.h] (#define IGEP_BOOT_CFG_INI_FILE "igep.ini") #Your desired kernel image.
Load Order:
<pre> 48 /* Linux Images */
49 const char* LinuxImageNames [] = {
or you can set the name for your kernel in the configuration file using the tag: kImageName
</pre> Don't use a uImage kernel format (from uboot), only standard kernel formats it's be supported.
'''kernel build command example''': <pre>$make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- zImage modules</pre> === Second Partition ===
Copy all your rootfs in this second partition. <pre>make ARCH=arm CROSS_COMPILE=arm-poky-linux-gnueabi- zImage modules</pre>
Also you can use the [http://releases.linaro.org/platform/linaro-m/headless/final/linaro-m-headless-tar-20101108-2.tar.gz linaro 10.11 minimal image] download the image and untar (as root) ===Second Partition===Copy all your rootfs in your microsd card this second partition.
Remember install Also you can use the kernel modules [http://releases.linaro.org/platform/linaro-m/headless/final/linaro-m-headless-tar-20101108-2.tar.gz linaro 10.11 minimal image] download the image and untar (as root) in this your microsd card second partition.
Example: <pre>sudo make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- modules_install INSTALL_MOD_PATH=[path to your target rootfs]</pre> == OneNand Boot ==Remember install the kernel modules in this partition.
=== OneNand Partitions<br> ===Example:
We suggest use minimum 3 partitions on the OneNand.<pre>
MTD partitions on "omap2sudo make ARCH=arm CROSS_COMPILE=arm-
onenand":(a) 0x000000000000poky-
0x000000080000 : "Xlinux-
Loader"(b) 0x000000080000gnueabi-
0x000000c80000 : "Boot"(c) 0x000000c80000-0x000020000000 : "File System"modules_install INSTALL_MOD_PATH=[path to your target rootfs]</pre>
==== X-Loader Partition ====
*Not fs formated (onenand raw)==Nand Boot==*Suggested size: 0x80000 (512 KiB)===Nand Partitions===*The xloader must be signed before copy it in We've defined 3 partitions on the flash memoryNand Memory.****You should copy the x-loader in the firsts 4 blocks (first 512 KiB), this is not a *
<pre>MTD partitions on "omap2-onenand":
(a) 0x000000000000-0x000000080000 : "X-Loader"
(b) 0x000000080000-0x000000c80000 : "Boot"
(c) 0x000000c80000-0x000020000000 : "File System"
</pre>
====X-Loader Partition====
* Not fs formated (onenand raw)
* Size: 0x80000 (512 KiB)
* The xloader must be signed before copy it into the flash memory.
*<span style="display: none; " id="1299156417262E">You should copy the x-loader in the firsts 4 blocks (first 512 KiB), this is not a </span>formated partition due the ROM not permits boot from therea formated partition in flash, you should use tools:<br>flash_eraseall and nandwrite for copy x-loader in the first blocks.<br>Suggested procedure[http:<br>nand_eraseall /dev/mtd0<br>nandwrite -p /dev/mtd0 <x-loader><br>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.bingit.ift<br>Due the Onenand 512 MiB has two dies it's necessary split the x-loader and convert it to a 1 die binaryisee.<br>This is a know OMAPbiz/DM?p=pub/AM OneNandscm/Nand boot limitationwriteloader.<br>This is the procedure git;a=summary writeloader] for create the x-loader OneNand binary:<br>You should execute: (You can use copy paste in your console)<br>split -b 2K x-load.bin.ift split-<br>for file in `ls split-a?`; do cat $file >> x-load-ddp.bin.ift; cat $file >> x-load-ddp.bin.ift; done<br>This last command generate a file named x-load-ddp.bin.ift this is the x-loader for copy it in the OneNandfirst blocks.
-------------------------------<br>4.4.1) Xloader partition<br>* Not fs formated (raw)<br>* Suggested size: 0x80000 (512 KiB)<br>* The xloader must be signed before copy it in the flash memory.<br>You should copy the x-loader in the firsts 4 blocks (first 512 KiB), this is not a <br>formated partition due the ROM not permits boot from there, you should use tools:<br>flash_eraseall and nandwrite for copy x-loader in the first blocks.<brpre>Suggested procedure:<br>nand_eraseall /dev/mtd0<br>nandwrite -p /dev/mtd0 <x-loader><br>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>Due the Onenand 512 MiB has two dies it's necessary split the x-loader and convert it to a 1 die binary.<br>This is a know OMAP/DM/AM OneNand/Nand boot limitation.<br>This is the procedure for create the x-loader OneNand binary:<br>You should execute: (You can use copy paste in your console)<br>split -b 2K x-load.bin.ift split-<br>for file in `ls split-a?`; do cat $file >> x-load-ddp.bin.ift; cat $file >> x-load-ddp.bin.ift; done<br>This last command generate a file named x-load-ddp.bin.ift this is the x-loader for copy it in the OneNand.<br>4.4.2 Boot Partition<br>--------------------<br>* fs used jffs2 zlib compressed filesystem.<br>* Suggested size: 0xC00000 (12 MiB)<br>First time creation:<br>a) Use the same procedure described in point 4.2.1. Copy your jffs2 compressed image in the<br>partition, it can be a empty file.<br>b) Erase the partition and mount it as jffs2 filesystem then you can copy with cp command.<br>Next Times:<br>Copy the files using cp command, or edit directly.<br>when kernel boots you can enable mount this partition over /boot directory for access all boot content.<br>4.4.3 Rootfs <br>------------<br>* fs (your prefered fs supported by linux, maybe a good choice it should be ubifs)<br>* Size, all or you can create more partitions if you wish ... :)<br>
=== ===Sign the x-loader before write it on the flash or microsd card.Sign x-loader:You should execute contrib/signGP for sign the xloader that resides inside the flash memory.contrib/signGP x-load.binThe signed x-loader it's named: x-load.bin.ift
Erase and copy the x-loader into the first flash partition (mtd0):flash_eraseall /dev/mtd0writeloader -i <x-loader.bin.ift> -o /dev/mtd0</pre>==== <brspan id="1299156619608S" style="display: none;"> 4 Settings &nbsp; Configuration: </span>Boot Partition====* filesystem used jffs2 zlib/lzo compressed filesystem.* Suggested size: 0xC00000 (12 MiB).
====== ================ ======X-Loader only support jffs2 partitions for boot partition.
4.1 MMC Boot<bru>------------<br>Get a new mmc and create two partitions, Create the first one must be fat (you can follow boot partition:<br>this howto: http://code.google.com/p/beagleboard/wiki/LinuxBootDiskFormat)<bru>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 kernel image.
Don't use a uImage kernel format (from uboot), only kernel formats be supported.
Compilation Example:<brpre>$make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- zImage modules Suggested procedure:
Read the kernel documentation about kernel images. Erase all mtd1 content:flash_eraseall /dev/mtd1
4.2 Setup igep.ini fileCreate your partition:mount -t jffs2 /dev/mtdblock1 /mnt<br/pre>------------------------<bru># Note this format permits use the charactersNext uses:<br/u># '#' and ';' as comment check file size restrictions
[kernel]<bru>kaddress=0x80008000<br/u>;rdaddress=0x84000000<br>serial.low=00000001<br>serial.high=00000000<br>revision=0001<br>;kImageName=<br>;kRdImageName= You can mount the partition over your boot directory in the rootfs
[kparams]<brpre>console=ttyS2,115200n8<br>;earlyprintk=serial,ttyS2,115200<br>mem=512M<br>boot_delay=0<br>;mpurate=800<br>;loglevel=7<br>omapfb.mode=dvi:1024x768MRmount -16@60t jffs2 /dev/mtdblock1 /boot<br/pre>smsc911xYou can use the cp command for copy your kernel and igep.mac=0xb2,0xb0,0x14,0xb5,0xcd,0xde<br>;ubiini configuration file.mtd=2<br>;root=ubi0:igep0020-rootfs <br>;rootfstype=ubifs<br>root=/dev/mmcblk0p2 rw rootwait
----<pre>cp igep.ini /bootcp zImage /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 ... :)
Tags Supported<br>--------------- ==Boot Priority==XLoader first try load from mmc and if it fails then try from OneNand.
'''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.
[kernel] ---'''MLO (x-loader) in MMC, igep.ini and zImage in Onenand.'''<br/>* kaddress=0x80008000 If only MLO it's provided this one try to load the other information from the Onenand.
Kernel copy address, you should use It means that XLoader always try to load the same address used in kernel image<br>configuration. If you don't know what it means maybe it's better don't change information from MMC and if itfails then try to load from OneNand.
*rdaddress=0x84000000<br>Kernel RAM disk copy address=Configuration file: igep. <br>If ini==[http://en.wikipedia.org/wiki/INI_file This entry in wikipedia] can help you don't know what it means maybe how a ini file it's better don't change itstructured.
*serialInside the sources/scripts directory you can found a [http://git.isee.biz/?p=pub/scm/igep-x-loader.lowgit;a=00000001<br>* serialblob;f=scripts/igep.highini;h=00000000<br>Board serial Number, you can read this information using ce093fe80c81d8888bf79464f847059b312bba83;hb=refs/procheads/cpuinfomaster igep.ini] example file.
*revision=0001<br>Board Revision ID, you The actual XLoader can read this information using /proc/cpuinfohandle two kind tags:
*kImageName=zImage<br>Kernel file name, if you don't provide this tag it try to load these others:<br>// DEFAULT IMAGES<br>"zImage"<br>"zimage"<br>"vmlinuz"<br>"bzImage"<br>"bzimage"[kernel] Used for internal XLoader setup.
*kRdImageName=rdimage<br>Kernel RAM Disk file, if you don't provide this tag it try to load these others:<br>// DEFAULT IMAGES<br>"initrd"[kparams] Used for pass the linux kernel parameters.
===TAG: [kernel] ===<pre> 1 [kernel] 2 kaddress=0x80008000 3 rdaddress=0x81600000 4 serial.low=00000001 5 serial.high=00000000 6 revision=0001 7 kImageName=zImage-test 8 kRdImageName=rdImage-test 9 MachineID=xxxx Where Machine ID = 2344 for IGEPv2, ID = 2717 for IGEP COM Module, ID = 3203 for IGEP COM PROTON 10 Mode=<kernel> or <binary> 11 dss=<0 or 1> Enable or Disable Video Output 12 dss_color=<0x00FF8000> Write your desired color in hex value 13 dss_bitmap=<filename> Raw display image</pre>{| border="1" width="800" cellspacing="1" cellpadding="1"|-||Parameter Name||Description||Default Value||Comments|-||kaddress||Kernel copy address||0x80008000||hex memory address|-||rdaddress||Ram Disk location address||0x81600000||hex memory address|-||serial.low||Serial number (low part)||0 - 99999999||numeric|-||serial.high||Serial number (high part)||0 - 99999999||numeric|-||revision||Revision ID||0 - 9999||numeric|-||kImageName||Kernel, binary image name||N/A||Kernel or binary image name|-||kRdImageName||Ramdisk||N/A||Ram Disk image name|-||MachineID||Machine ID (kernel ID)||2717||2717 (IGEP COM Module) | 2344 IGEPv2 | 3203 (IGEP COM PROTON)|-||Mode||Boot Mode||kernel||kernel=linux kernel / binary=boot binary image|-||dss||Enable Video||0||0 = Disable, 1 Enable Video Output|-||dss_color||Video Color||0x00FF8000||Solid Color|-||dss_bitmap||Video Bitmap Image||string||filename with desired image|}
===TAG: [kparams] ----<br>Kernel ===In this tag you can add all kernel parametersthat you need, all these parameters are passed directly to the kernel using the<br>kernel command line. this is only an example:
kernel parameters documentation:<brpre>http 10 [kparams] 11 console=ttyS2,115200n8 12 ;earlyprintk=serial,ttyS2,115200 13 mem=512M 14 boot_delay=0 15 ;mpurate=800 16 ;loglevel=7 17 omapfb.mode=dvi://www1024x768MR-16@60\r 18 smsc911x.kernelmac=0xb2,0xb0,0x14,0xb5,0xcd,0xde\r 19 ;ubi.org/doc/Documentation/kernelmtd=2 20 ;root=ubi0:igep0020-parameters.txt<br>http://www.kernel.org/pub/linux/kernel/people/gregkhrootfs 21 ;rootfstype=ubifs 22 root=/lkndev/lkn_pdf/ch09.pdf mmcblk0p2 rw rootwait
4.3 Boot Priority<br>-----------------<br>First try mmc and if it fails then try from OneNandAlso remember you can comment any line using ';' or '#' characters.
Examples:<br/pre>a) 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.
b) MLO (x-loader) in MMC=FAQ===How I can boot from NFS?==Yes, igep.ini and zImage you should add below parameters in Onenand.<br>If only MLO it's provided this one try to load the other information from<br>the Onenand. kparams tag:
4<pre>#smsc911x.mac fix your mac addresssmsc911x.4 OneNand Partition mac=0xb2,0xb0,0x14,0xb5,0xcd,0xde# IP set you IP settings<local_ip>:<server_ip>:<gateway>:<network_mask>::<interface>:ip=192.168.2.123:192.168.2.105:192.168.2.1:255.255.255.0::eth0:# Set root as nfsroot=/dev/nfs# Set your NFS root path as <server_ip>:<rootfs_path>nfsroot=192.168.2.105:/srv/nfs/linaro_minimal<br/pre>-------------------------------<br>We suggest ==How I can change the assigned kernel memory?==You can use minimum 3 partitions on the OneNand. mem kernel variable as assign your desired kernel memory as:
Creating 3 MTD partitions on "omap2-onenand":<brpre>0x000000000000-0x000000080000 : "X-Loader"<br>0x000000080000-0x000000c80000 : "Boot"[kparams]mem=430M<br/pre>0x000000c80000==How I can add more kernel variables?==You can add more variables creating a new variable -0x000020000000 value pair under kparams tag as: "File System"
4.4.1) Xloader partition<br>* Not fs formated (raw)<brpre>* Suggested size: 0x80000 (512 KiB)boot_delay=0<br/pre>* The xloader must be signed before copy it in ==How I can modify my MAC address?==You can assign your desired mac address using the flash memoryvariable smsc911x. mac as:
You should copy the x-loader in the firsts 4 blocks (first 512 KiB)<pre>smsc911x.mac=0xb2,0xb0,0x14,0xb5,0xcd, this is not a 0xde<br/pre>formated partition due the ROM not permits ==How I can boot from there, you my board using ubi root filesystem?==You should use toolsthese parameters:<br>flash_eraseall and nandwrite for copy x-loader in the first blocks.
Suggested procedure: <pre>ubi.mtd=2
nand_eraseall /dev/mtd0<br>nandwrite root=ubi0:igep0020-p /dev/mtd0 <x-loader> rootfs
*Sign x-loaderrootfstype=ubifs<br/pre>You should execute contrib/signGP for sign the xloader that resides inside the flash memory==How I can boot my board using a RAM disk?==Use a RAMdisk it's fully supported.
contrib/signGP x-load.bin <brpre>The signed x-loader it's named: x-load[kernel]rdaddress=0x81600000kRdImageName=ramdisk.bin.ift
Due the Onenand 512 MiB has two dies it's necessary split the x-loader and convert it to a 1 die binary.<br>This is a know OMAP[kparams]root=/DMdev/AM OneNand/Nand boot limitation. ram0 rw
This is the procedure for create the x-loader OneNand binary:<br/pre>You should execute: (You can use copy paste in your console) split -b 2K x-load.bin.ift split-<br>for file in `ls split-a==Can I change the Processor frecuency?`; 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 xYes you can, IGEP X-loader for copy it in configures the OneNand. 4.4.2 Boot Partition<br>--------------------<br>* fs used jffs2 zlib compressed filesystem.<br>* Suggested size: 0xC00000 (12 MiB) First time creation:<br>a) Use the same procedure described in point 4.2.1. Copy your jffs2 compressed image in the<br>partition, it processor to boot at 600 Mhz you can be select a empty file. b) Erase different boot speed using the partition and mount it variable mpurate as jffs2 filesystem then you can copy with cp command. Next Times:<br>Copy the files using cp command, or edit directly. when kernel boots you can enable mount this partition over /boot directory for access all boot content. 4.4.3 Rootfs <br>------------<br>* fs (your prefered fs supported by linux, maybe a good choice it should be ubifs)<br>* Size, all or you can create more partitions if you wish ... :) <br>5 Build procedure<br>=================
5.1 Build with Ubuntu Cross Compiler gcc 4.5.<pre>mpurate=800</pre>If you don't force any frequency the linux kernel will put your processor at the maximum speed (ex: DM3730 will run at 1 Ghz)
*This is tested with Ubuntu 10.10
a) Install the cross compiler:<br>apt-get install cpp-4.5-arm-linux-gnueabi g++-4.5-arm-linux-gnueabi
b==How I can boot downloading the kernel using wget?==The way for do that it's using one minimal kernel and RAMdisk (ex: using image-core-minimal from poky) Configure , the board<br>make igep0020-sdcard_config procedure can be more or less:
ca) Build<br>make Copy your minimal kernel and your Ramdisk inside the boot partition.
db) Sign x-loader<br>You should execute contribBoot Normally from this kernel and Ramdisk, create one script your your desired command such wget http://signGP for sign the xloader that resides inside the flash memory192.168.15.<br>contrib22/signGP x-load.bin <br>The signed x-loader it's named: x-loadmykernel.bin.ift
<br>5.2 Build with IGEP SDK c) Execute the script when boot (you can do that adding the script to the init enviroment)
ad) Source if the enviroment<br>source /usr/local/poky/eabi-glibc/environment-setup-arm-none-linux-gnueabi downloading it's ok then execute the kexec call, first load the kernel and then pass to it your desired parameters.
be) Edit finally boot the file Makefile<br>Find the define: new kernel with kexec.
And Set the variable as:<br>CROSS_COMPILE = arm-none-linux-gnueabi-
b) Configure the board<br>make igep0020-sdcard_config
c==My board not boot and I don't know what to do ...==When you test your IGEP X-loader, igep.ini file and kernel we suggest use a microsd card in front of use directly the flash nand, if your flash not boot copy all files in one microsd card and boot from there. You can check what happens removing some files from your microsd card for example if you wish test if your flashed kernel it's loaded in a right way then remove the kernel from your microsd card (note: use the same kernel name) build<br>make , IGEP X-loader first try load the file from your microsd card but if it's not found then it try to find the file in the flash.
d) Sign x-loader<br>You should execute contrib/signGP for sign ==How I can upgrade my old kernel?==Just copy the xloader that resides inside new one, the flash memory.<br>contrib/signGP x-load.bin <br>The signed x-loader most secure way it's named: x-loadcopy the new one and at end replace the igep.binini file with your new one.ift
<brpre>5.3 Build Native mount -t jffs2 /dev/mtdblock1 /boot
a) Configure the board<br>make igep0020-sdcard_config cp newkernel.bin /boot
b) Modify the config cp igep.mk fileini /boot<br/pre>Edit the variable CFLAGS Use a different kernel name and add the option: -fno-stack-protector you always can boot from your old one.
CFLAGS=6 Contribution & Support & Bugs Report=Contributions to this project be welcome and you can send your patches to support@iseebcn.com or you can use the igep forum for it.<br />You can access to IGEP-x-Loader repository using our git at [http://git.isee.biz/?p= $(CPPFLAGS) pub/scm/igep-Wall x-Wstrict-prototypes -fno-stack-protector loader.git;a=summary git.isee.biz]<br />IGEP IRC Channel: [http://webchat.freenode.net/?channels=igep http://webchat.freenode.net/?channels=igep]
c) build <br>make CROSS_COMPILE=""
d) Sign x-loader<br>You should execute contrib{{Message/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 Forum}}
<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[[Category: http://webchat.freenode.net/?channels=igep<br><br>Boot_loaders|X_Loader]]
