Revision as of 12:11, 25 March 2014 by Craig Peacock (Talk | contribs)

Compiling uBoot for the GuruPlug Server Plus

Download the latest version of u-Boot and extract the files to a working folder:

tar -xjf u-boot-latest.tar.bz2
cd u-boot-2014.01

Cross Compile u-Boot using the GuruPlug configuration:

make CROSS_COMPILE=arm-linux-gnueabi- distclean
make CROSS_COMPILE=arm-linux-gnueabi- guruplug_config
make CROSS_COMPILE=arm-linux-gnueabi- u-boot.kwb

Compiling should conclude with output similar to that below.

Preparing kirkwood boot image to boot from nand
Nand ECC mode = default
Nand page size = 0x800
Image Type:   Kirkwood Boot from NAND Flash Image
Data Size:    250496 Bytes = 244.62 kB = 0.24 MB
Load Address: 00600000
Entry Point:  00600000

Testing your new u-Boot

It is always a good idea to load your newly compiled version of u-Boot into RAM first and test it.

setenv ipaddr
setenv serverip
tftp 0x800000 u-boot.kwb
go 0x800200

Flasing u-Boot

When you are confident and ready to take the plunge, you can burn u-Boot to flash using:

setenv ipaddr
setenv serverip
tftp 0x6400000 u-boot.kwb
nand erase 0x0 0x100000
nand write.e 0x6400000 0x0 0x100000

Upon reboot, you should be greeted with your new u-Boot. Congratulations.

U-Boot 2014.01 (Mar 25 2014 - 04:50:06)

SoC:   Kirkwood 88F6281_A1
DRAM:  512 MiB
WARNING: Caches not enabled
NAND:  512 MiB
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   egiga0
Warning: failed to set MAC address
, egiga1
Warning: failed to set MAC address

88E1121 Initialized on egiga0
88E1121 Initialized on egiga1
Hit any key to stop autoboot:  0