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The bootloader U-Boot

2,898 bytes removed, 16:48, 28 June 2013
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<meta name="description" content="All you need to know about the U-Boot bootloader for IGEP Processor Boards. How to cross compile, get stable versions and get the latest development versions, etc."></meta>
<meta name="keywords" content="U-Boot, IGEP, ARM, OMAP3, AM335x, OMAP5"></meta>
 
= U-Boot for IGEP platforms =
== Mainline U-Boot, 2012.10 release ==
 
See the [[U-Boot Mainline Series]] article.
As of the 2012.10 release, mainline U-Boot has got SPL (Secondary Program Loader) integrated, which replaces X-Loader ('''not IGEP-X-Loader!''') in the [[Boot up sequence|boot sequence]].
== U-Boot 2010.06-y series (stable) ==
 
See the [[U-Boot 2010.06-y series]] article.
 
Download the IGEP U-Boot sources and follow next steps:
== U-Boot 2009.11-y series (stable) ==
 
See the [[U-Boot 2009.11-y series]] article.
 
Download the IGEP U-Boot sources and follow next steps:
** improve SMSC LAN9221 throughput
** add support for OMAP3 IGEP module (igep0030)
 
= Quality assurance: Test Cases =
 
== Status table ==
 
== Test case definitions ==
 
''' #001 : SDCARD boot '''
 
How to test: Put u-boot to sdcard and check if booting. Result should be like :
 
U-Boot 2011.03-00534-gb39628a-dirty (May 19 2011 - 13:39:01)
 
OMAP3630/3730-GP ES1.0, CPU-OPP2, L3-165MHz, Max CPU Clock 1 Ghz
IGEP v2 board + LPDDR/ONENAND
I2C: ready
DRAM: 512 MiB
Muxed OneNAND(DDP) 512MB 1.8V 16-bit (0x58)
OneNAND version = 0x0031
Chip support all block unlock
Chip has 2 plane
block = 2048, wp status = 0x2
Scanning device for bad blocks
OneNAND: 512 MiB
MMC: OMAP SD/MMC: 0
*** Warning - bad CRC, using default environment
 
In: serial
Out: serial
Err: serial
Die ID #2a700000000000000156087c06013022
Net: smc911x-0
Hit any key to stop autoboot: 0
 
''' #002 : ONENAND boot '''
 
How to test: Put u-boot to onenand and check if booting.
 
Script : flash u-boot using u-boot
 
mmc rescan 0
fatload mmc 0 0x80300000 u-boot.bin
onenand erase 0x80000 0x180000
onenand write 0x80300000 0x80000 0x180000
 
''' #003 : Run OS from SDCARD using ext2 filesystem '''
 
How to test:
 
''' #004 : Run OS from ONENAND using UBIFS filesystem '''
 
How to test:
 
''' #005 : Run OS from SDCARD using NFS filesystem '''
 
How to test:
 
Script:
 
setenv distro sandbox
setenv machine igep00x0
setenv project 0
setenv ethaddr ac:de:48:00:00:00
setenv ipaddr 192.168.2.245
setenv netmask 255.255.255.0
setenv gatewayip 192.168.2.1
setenv serverip 192.168.2.114
setenv addip 'setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}::eth0:'
setenv nfs-bootargs 'setenv bootargs ${bootargs-base} root=/dev/nfs nfsroot=${serverip}:/srv/nfs/${distro}/${project}/${machine} ; run addip'
setenv bootargs-base 'console=ttyS2,115200n8 console=tty0 omapfb.mode=dvi:1024x768MR-16@60'
setenv bootcmd 'run nfs-bootargs; nfs 0x80000000 ${serverip}:/srv/nfs/${distro}/${project}/${machine}/boot/uImage; bootm'
run bootcmd
 
= Annex: default u-boot environment =
 
setenv distro poky
setenv machine igep0020
setenv project poky-image-sato
setenv ethaddr ac:de:48:00:02:54
setenv ipaddr 192.168.254.254
setenv netmask 255.255.255.0
setenv gatewayip 192.168.254.10
setenv serverip 192.168.254.10
setenv addip 'setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}::eth0:'
setenv bootargs-base 'console=ttyS2,115200n8 console=tty0 omapfb.mode=dvi:1024x768MR-16@60'
setenv mmc-bootargs 'setenv bootargs ${bootargs-base} root=/dev/mmcblk0p2 rw rootwait'
setenv mmc-boot 'mmc init 0; if fatload mmc 0 80000000 boot.ini; then source; else if fatload mmc 0 80000000 uImage; then run mmc-bootargs; bootm; fi; fi'
setenv onenand-bootargs 'setenv bootargs ${bootargs-base} root=/dev/mtdblock4 rootfstype=jffs2 ; run addip'
setenv onenand-boot 'run onenand-bootargs; onenand read 80000000 280000 400000 ; bootm 80000000'
setenv nfs-bootargs 'setenv bootargs ${bootargs-base} root=/dev/nfs nfsroot=${serverip}:/srv/nfs/${distro}/${project}/${machine} ; run addip'
setenv nfs-boot 'if ping ${serverip}; then run nfs-bootargs; tftp 0x80000000 ${distro}/${project}/${machine}/uImage; bootm; fi;'
setenv bootcmd 'run mmc-boot; run nfs-boot; run onenand-boot'
 
mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n 'Boot setup script' -d setup.source setup.ini
[[Category:Boot loaders|Uboot]]
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