= 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 execute contrib/signGP for sign the xloader[2.'' <pre>contrib/signGP x-load1.binThe signed x0-loader it's named: x1] Added Support for TPS65950-load.binA3 initialization at 1.ift</pre> == Build with IGEP SDK ==35V
=== Setup the Enviroment<br> ===<pre>source /usr/local/poky/eabi-glibc/environment-setup-arm-none-linux-gnueabi </preSetup the board settings ===<pre>make igep0020-sdcard_config</pre>=== Build<br> ===<pre>make CROSS_COMPILE=arm-none-linux-gnueabi-</pre>d) Sign x-loader<br>You should execute contrib/signGP for sign the xloader that resides inside the flash memory[2.<br>contrib/signGP x-load1.bin<br>The signed x0-loader it's named: x-load.bin.ift 1] Added support for IGEP Module 0030
<br>5[2.3 Build Native 1.0-1] Added support dynamic Machine ID selection (same xloader boot IGEPv2 & IGEP Module)
a) Configure the board<br>make igep0020-sdcard_config ---
b) Modify the config[2.mk file<br>Edit the variable CFLAGS and add the option: -fno-stack1.0-protector 2] ARM Compilation bug resolved
CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -fno-stack-protector
c) build<br>make CROSS_COMPILE="" [2.1.0-3] Update SDRAM structure initialization
d) Sign x-loader<br>You should execute contrib/signGP for sign the xloader that resides inside the flash memory[2.<br>contrib/signGP x-load1.bin<br>The signed x0-loader it's named: x-load.bin.ift <br> 3] Added support for Initial RAM disk
===[2.1.0-3] Updated Initial RAM disk destination address
Build with IGEP SDK<br><br> ----
Build Native<br> [2.2.0-1] Update Makefile structure
<br> [2.2.0-1] Downgrade the boot processor speed
<br> ----
<br> [2.3.0-1] Add NAND flash devices and Micron MT29CXGXXMAXX memories support
Index [2.3.0-2] Add Hynix NAND memorie and IGEP0032 support
===== [2.3.0-2] Added lzo compression schema.
1 Summary.<br>2 Features and Issues.<br>2.1 Improvements & Modifications.<br>2.2 Issues<br>2.3 TODO<br>4 Settings & Configuration<br>4.1 MMC Boot<br>4.2 Setup igep.ini file<br>4.3 Boot Priority<br>4.4 OneNand Partition settings<br>4.4.1 Xloader partition<br>4.4.2 Boot Partition<br>4.4.3 Rootfs<br>5 Build procedure<br>5.1 Build with Ubuntu Cross Compiler gcc 4.5.1<br>5.2 Build with IGEP SDK<br>5.3 Build Native<br>6 Contribution & Support & Report Bugs ----
1 Summary:<br>===========<br>This directory contains the source code for X[2.3.0-Loader, an initial program<br>loader 3] Add Support for Embedded boards based on OMAP processorsexecute ARM binaries [2. 3.0-3] Bug Fixes related to I and D Cache
2 Features and Issues:<br>======================= ----
[2.4.0-1 Improvements & Modifications<br>--------------------------------- ] Added Memory test feature
*Added malloc/free functionality.<br>* Added mtd framework and onenand support, removed the old onenand drivers.<br>* Added fs jffs2 support using mtd & onenand support (Read Only).<br>* Added crc32 and zlib. <br>* Jffs2 zlib compression support (Read Only).<br>* Dual boot mmc & onenand with mmc highest priority.<br>* Added Linux kernel boot directly (Support for [2.64.22 and highest version kernels)<br>* Linux kernel supported images: vmlinuz, bzImage and zImage.<br>* Support for loading Linux Ram disk (EXPERIMENTAL)<br>* 0-1] Added "ini" files parser.<br>* The configuration resides in a plain txt (ini format file).<br>* Support Windows & Linux formating ini files.<br>* some boot from mmc, onenand, or mix with mmc highest priority.<br>* Added codeblocks project and compilation rules.<br>* Added support for gcc 4.5.1information
[2.2 Issues<br>----------4.0- 1] New read_nand_cache function optimized for load from NAND
*The ini file it's limited to max size: 16 KiB<br> This is not a real limitation due all ini file it's <br> copied into the RAM memory[2.<br>* Kernel Command line parameters it's limited to: 4 KiB<br> This is not a real limitation due all ini file it's <br> copied into the RAM memory.<br>* Malloc it's limited to 32 MiB.<br>* Cannot write comments 0-1] BUG resolved: Refresh Setup in lines with tag=valueMicron & Hynix Memories
[2.3 TODO<br>-------4.0- 1] BUG resolved: Reset Memory controller after initialize Malloc function
*Add support for IGEP0030 - Family boards[2.<br>* Add support for other OMAP/DM/AM processor boards4.<br>* Remove compilation warnings.<br>* Add in 0-1] BUG resolved: Resolve problems updating the tag=value inline commentsflash content under jffs2
3 Status:<br>========== ----
*Support IGEP0020 Revision B & C family boards[2.<br> - Tested with IGEPv2 (DM3730@1Ghz and 512/512 MB Ram/Onenand)<br> - Tested with IGEPv2 (AM3703@1Ghz and 512/512 MB Ram/Onenand)<br> 4.0- Tested with IGEPv2 (OMAP3530@720Mhz and 512/512 MB Ram/Onenand)2] Resolved Memory Autodetection
[2.4 Settings & Configuration:<br>============================ .0-2] Better hang board led control
[2.4.1 MMC Boot<br>---------0---<br>Get a new mmc and create two partitions, the first one must be fat (you can follow <br>this howto: http://code.google.com/p/beagleboard/wiki/LinuxBootDiskFormat)<br>In this first partition (boot partition) you should copy: 2] New read_nand_cache function optimized for load from OneNand
*x-loader[2.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 image4.0-2] Added Hw GPtimer functionality
Don't use a uImage kernel format (from uboot), only kernel formats be supported. ----
Compilation Example:<br>$make ARCH=arm CROSS_COMPILE=arm[2.5.0-none-linux-gnueabi- zImage modules 1] Added System DMA driver.
Read the kernel documentation about kernel images[2.5.0-1] Added optimized memcpy & memset functions.
4[2.2 Setup igep5.ini file<br>0------------------------<br># Note this format permits use the characters<br># '#' and ';' as comment check file size restrictions 1] Improved boot speed.
[kernel2.5.0-1]<br>kaddress=0x80008000<br>;rdaddress=0x84000000<br>serial.low=00000001<br>serialImprove NAND driver support.high=00000000<br>revision=0001<br>;kImageName=<br>;kRdImageName=
[kparams2.5.0-1]<br>console=ttyS2,115200n8<br>;earlyprintk=serial,ttyS2,115200<br>mem=512M<br>boot_delay=0<br>;mpurate=800<br>;loglevel=7<br>omapfbAuto x-loader.mode=dvi:1024x768MR-16@60<br>smsc911xbin.mac=0xb2,0xb0,0x14,0xb5,0xcd,0xde<br>;ubiift and MLO generation.mtd= [2<br>;root=ubi0:igep0020.5.0-rootfs <br>;rootfstype=ubifs<br>root=/dev/mmcblk0p2 rw rootwait 1] Added DSS video support.
----
Tags Supported<br>--------[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.
----
[kernel2.5.0-3] ----<br>* kaddress=0x80008000 platform.S: downgrade MPU boot clock from 1GHz to 800 MHz
Kernel copy address, you should use the same address used in kernel image<br>configuration. If you don't know what it means maybe it's better don't change it. ----
*rdaddress=0x84000000<br>Kernel RAM disk copy address[2. <br>If you don't know what it means maybe it's better don't change it6.0-1] Remove OMAP35xx support
*serial[2.low=00000001<br>* serial6.high=00000000<br>Board serial Number0-1] New DMA driver, you now can read this information using /proc/cpuinfohandle different DMA channels and transfers
*revision=0001<br>Board Revision ID, you can read this information using /proc/cpuinfo[2.6.0-1] GPMC: Add support for use prefetch engine
*kImageName=zImage<br>Kernel file name, if you don't provide this tag it try to load these others[2.6.0-1] NAND:<br>// DEFAULT IMAGES<br>"zImage"<br>"zimage"<br>"vmlinuz"<br>"bzImage"<br>"bzimage"Added a new Nand driver
*kRdImageName=rdimage<br>Kernel RAM Disk file, if you don't provide this tag it try to load these others[2.6.0-1] NAND:<br>// DEFAULT IMAGES<br>"initrd"Modify memory setup timmings
----
[kparams2.6.0-2] ----<br>Kernel parameters, all these parameters are passed directly to the kernel using the<br>DMA: disable dma_memcpy function due random kernel command line. memory corruption
kernel parameters documentation=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:<br>//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||[http://downloads.isee.biz/pub/releases/IGEP_xloader/igep-x-loader-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|-||2.1.0-2||[http://wwwdownloads.kernelisee.orgbiz/docpub/Documentationreleases/kernelIGEP_xloader/igep-x-loader-2.1.0-parameters2.txt<br>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://wwwdownloads.kernelisee.orgbiz/pub/linuxreleases/kernelIGEP_xloader/peopleigep-x-loader-2.1.0-3.tar.bz2 igep-x-loader-2.1.0-3.tar.bz2]||[[The_IGEP_X-loader#STATUS | All OMAP3 Boards]] except IGEP COM MODULE AM3703|-||2.2.0-1||[http:/gregkh/lkndownloads.isee.biz/lkn_pdfpub/ch09releases/IGEP_xloader/igep-x-loader-2.2.0-1.tar.bz2 igep-x-loader-2.2.pdf 0-1.tar.bz2]||[[The_IGEP_X-loader#STATUS | All OMAP3 Boards]] except IGEP COM MODULE AM3703|}
4=Build Procedure===Build with ISEE SDK Yocto Toolchain 1.3 Boot Priority<br>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-----------<br>First try mmc 3 link] and if uncompress it fails then try from OneNandas root in your / directory.
Examples:<brpre>a) MLO (x-loader), igep.ini, zImage from MMC<br>If all it's present in Hint: Remember setup the enviroment before build the mmc it don't try to boot from Onenand. source:
b) MLO (xsource /opt/poky/1.2/environment-setup-armv7a-vfp-neon-poky-linux-loader) in MMC, igep.ini and zImage in Onenand.<br>If only MLO it's provided this one try to load the other information fromgnueabi<br/pre>the Onenand.
4.4 OneNand Partition settings===Download the sources from our git repository===<brpre>git clone git://git.isee.biz/pub/scm/igep-x------------------------------loader.git<br/pre>We suggest use minimum 3 partitions on the OneNand. ===Get your desired tag / release===git checkout <your_desired_release> -b <your_name_release>
Creating 3 MTD partitions on "omap2-onenand":<brpre>0x000000000000git checkout release-2.5.0-2 -0x000000080000 : "Xb release-Loader"<br>0x0000000800002.5.0-2-0x000000c80000 : "Boot"local<br/pre>0x000000c80000-0x000020000000 : "File System"
4.4.1) Xloader partition===Setup the board build setup===<pre>make igep00x0_config</pre>===Build the software===<brpre>* Not fs formated (raw)make<br/pre>* Suggested size: 0x80000 ===Sign the binary x-loader (512 KiBOnly versions prior to 2.5.0-x)<br>* The ===''You should execute contrib/signGP for sign the xloader must be signed before copy it in the flash memory. ''
<pre>contrib/signGP x-load.binThe signed x-loader it's named: x-load.bin.ift</pre> ==Build Native=====Download from git repository=== git clone https://git.isee.biz/arm-boot/igep-x-loader.git git checkout <your_desired_release> -b <your_name_release> <pre style="font-weight: normal;"> git checkout release-2.5.0-2 -b release-2.5.0-2-local</pre> ===Configure the 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 copy 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 firsts 4 blocks (first 512 KiB), microSD card or in the Nand Memory. ==MMC Boot=====Prepare the microsd card===You can follow this is not howto about how [http://code.google.com/p/beagleboard/wiki/LinuxBootDiskFormat prepare the microsd card] or [[How to boot from MicroSD Card]] Get a <br>new microsd card and create two partitions, the first one must be fat16/32 and the second one can be formated in any format type supported by linux kernel. ===Copy the files in the first (FAT) partition due ===In the ROM not permits boot from there, first partition you should use toolsmust copy in this order:<br>flash_eraseall and nandwrite for # x-loader.bin.ift (you must rename this file to MLO before copy it) / This is a signed image using contrib/signGP tool# x-loader in 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 first blocksfile: [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.
Suggested procedureLoad Order:
nand_eraseall <pre> 48 /* Linux Images */ 49 const char* LinuxImageNames [] = { 50 "kparam" /* Use kparam first */ 51 "zImage", /dev* jffs2 it's case sensitive */mtd0<br>nandwrite -p 52 "zimage", /dev* fat name it's not case sentitive */mtd0 <x-loader> 53 "vmlinuz", 54 "bzImage", 55 "bzimage", 56 0, 57 };
*Sign x-loader<br>You should execute contrib/signGP or you can set the name for sign your kernel in the xloader that resides inside configuration file using the flash memorytag: kImageName</pre>Don't use a uImage kernel format (from uboot), only standard kernel formats be supported.
contrib/signGP x-load.bin <br>The signed x-loader it's named''kernel build command example''': x-load.bin.ift
Due the Onenand 512 MiB has two dies it's necessary split the x<pre>make ARCH=arm CROSS_COMPILE=arm-loader and convert it to a 1 die binary.poky-linux-gnueabi- zImage modules<br/pre>This is a know OMAP/DM/AM OneNand/Nand boot limitation.
This is the procedure for create the x-loader OneNand binary:<br>You should execute: (You can use copy paste ===Second Partition===Copy all your rootfs in your console) this second partition.
split Also you can use the [http://releases.linaro.org/platform/linaro-b 2K xm/headless/final/linaro-load.bin.ift splitm-<br>for file in `ls splitheadless-a?`; do cat $file >> xtar-load20101108-ddp2.bintar.ift; cat $file gz linaro 10.11 minimal image]>nbsp;> x-load-ddp.bindownload the image and untar (as root) in your microsd card second partition.ift; done
This last command generate a file named x-load-ddp.bin.ift this is Remember install the x-loader for copy it kernel modules in the OneNandthis partition.
4.4.2 Boot Partition<br>--------------------<br>* fs used jffs2 zlib compressed filesystem.<br>* Suggested sizeExample: 0xC00000 (12 MiB)
First time creation:<brpre>a) Use the same procedure described in point 4.2.1. Copy sudo make ARCH=arm CROSS_COMPILE=arm-poky-linux-gnueabi- modules_install INSTALL_MOD_PATH=[path to your jffs2 compressed image in thetarget rootfs]<br/pre>partition, it can be a empty file.
b) Erase ==Nand Boot=====Nand Partitions===We've defined 3 partitions on the partition and mount it as jffs2 filesystem then you can copy with cp commandNand Memory.
Next Times<pre>MTD partitions on "omap2-onenand":(a) 0x000000000000-0x000000080000 : "X-Loader"(b) 0x000000080000-0x000000c80000 :"Boot"(c) 0x000000c80000-0x000020000000 : "File System"<br/pre>Copy ====X-Loader Partition====* Not fs formated (onenand raw)* Size: 0x80000 (512 KiB)* The xloader must be signed before copy it into the files using cp command, or edit directlyflash memory.
when kernel boots you can enable mount You should copy the x-loader in the firsts 4 blocks (first 512 KiB), this is not a formated partition over due the ROM not permits boot from a formated partition in flash, you should use flash_eraseall and [http://git.isee.biz/boot directory ?p=pub/scm/writeloader.git;a=summary writeloader] for access all boot contentcopy x-loader in the first blocks.
4.4.3 Rootfs <brpre>------------<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 ... Suggested procedure:)
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>====<span id="1299156619608S" style="display: none;"> </span>Boot Partition====* filesystem used jffs2 zlib/lzo compressed filesystem.* Suggested size: 0xC00000 (12 MiB). X-Loader only support jffs2 partitions for boot partition. <u>Create the boot partition:</u> <pre>Suggested procedure: Erase all mtd1 content:flash_eraseall /dev/mtd1 Create your partition:mount -t jffs2 /dev/mtdblock1 /mnt</pre><u>Next uses:</u> <u></u>You can mount the partition over your boot directory in the rootfs <pre>mount -t jffs2 /dev/mtdblock1 /boot</pre>You can use the cp command for copy your kernel and igep.ini configuration file. <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 ... :) ==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. '''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. ==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. Inside the sources/scripts directory you can found a [http://git.isee.biz/?p=pub/scm/igep-x-loader.git;a=blob;f=scripts/igep.ini;h=ce093fe80c81d8888bf79464f847059b312bba83;hb=refs/heads/master igep.ini] example file. The actual XLoader can handle two kind tags: [kernel] Used for internal XLoader setup. [kparams] Used for pass the linux kernel parameters. ===TAG: [kernel] ===<pre> 1 [kernel] 2 kaddress=0x80008000 3 rdaddress=0x81600000 4 serial.low=00000001 5 Build procedureserial.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]===In this tag you can add all kernel parameters that you need, this is only an example: <pre> 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:1024x768MR-16@60\r 18 smsc911x.mac=0xb2,0xb0,0x14,0xb5,0xcd,0xde\r 19 ;ubi.mtd=2 20 ;root=ubi0:igep0020-rootfs 21 ;rootfstype=ubifs 22 root=/dev/mmcblk0p2 rw rootwait Also remember you can comment any line using ';' or '#' characters. </pre> =FAQ===How I can boot from NFS?==Yes, you should add below parameters in the kparams tag: <pre>#smsc911x.mac fix your mac addresssmsc911x.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</pre>==How I can change the assigned kernel memory?==You can use the mem kernel variable as assign your desired kernel memory as: <pre>[kparams]mem=430M</pre>==How I can add more kernel variables?==You can add more variables creating a new variable - value pair under kparams tag as: <pre>boot_delay=0</pre>==How I can modify my MAC address?==You can assign your desired mac address using the variable smsc911x.mac as: <pre>smsc911x.mac=0xb2,0xb0,0x14,0xb5,0xcd,0xde<br/pre>==How I can boot my board using ubi root filesystem?==You should use these parameters: <pre>ubi.mtd=2 root=ubi0:igep0020-rootfs rootfstype=ubifs</pre>==How I can boot my board using a RAM disk?==Use a RAMdisk it's fully supported. <pre>[kernel]rdaddress=0x81600000kRdImageName=ramdisk.bin [kparams]root=/dev/ram0 rw </pre>==Can I change the Processor frecuency?== Yes you can, IGEP X-loader configures the processor to boot at 600 Mhz you can select a different boot speed using the variable mpurate as:
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]]
