[U-Boot-Users] MBX with no NVRAM
Rod Boyce
rod_boyce at stratexnet.com
Thu Feb 27 22:19:15 CET 2003
You could set the environment variables to be stored in flash and not batteryless backed up RAM. I have use this configureation well on the MBX board.
Look at the NV configuration on this config file.
Rod
On Thu, 27 Feb 2003 21:32:03 +0100
"Ruurd Jan" <ruurdjan at xs4all.nl> wrote:
> Hello,
>
> I've got U-boot 0.2.0 up-and-running on my MBX860 board (a entry-level
> 50MHz version).
> This board, hoever, does not have NVRAM (there is no battery).
> Will this be a problem, even if I hard-code all variables I need into
> U-boot?
> I'm trying to boot a linux kernel, but after the kernel uncompresses,
> the board reboots:
> => tftpboot 200000 uImage
> ARP broadcast 1
> TFTP from server 10.0.0.150; our IP address is 10.0.0.200
> Filename 'uImage'. Load address: 0x200000
> Loading:
> #################################################################
> ##################
> done
> Bytes transferred = 420568 (66ad8 hex)
> => bootm
> ## Booting image at 00200000 ...
> Image Name: Linux Kernel Image
> Image Type: PowerPC Linux Kernel Image (gzip compressed)
> Data Size: 420504 Bytes = 410.6 kB
> Load Address: 00000000
> Entry Point: 00000000
> Verifying Checksum ... OK
> Uncompressing Kernel Image ... OK
>
>
> U-Boot 0.2.0 (Feb 27 2003 - 21:10:18)
>
> CPU: XPC860xxZPnnC1 at 50 MHz: 4 kB I-Cache 4 kB D-Cache
> Board: MBX860EN(01-W3425F01A)
> *** Warning: Low Battery Status - On-Board Battery ***
> DRAM: 68 MB
> FLASH: 512 kB
> In: serial
> Out: serial
> Err: serial
> Net: SCC ETHERNET
> PCMCIA: 3.3V card found: SunDisk SDP 5/3 0.6
> Fixed Disk Card
> IDE interface
> [silicon] [unique] [single] [sleep] [standby] [idle]
> [low power] Bus 0: OK
> Device 0: Model: SanDisk SDP3B-256 Firm: vdd 1.00. Ser#:
> 213008Q0410
> Type: Removable Hard Disk
> Capacity: 245.0 MB = 0.2 GB (501760 x 512)
> =>
>
> Here's the environment I hard-coded into u-boot:
> bootcmd=bootm 20000
> baudrate=9600
> loads_echo=1
> bootargs=root=/dev/hda2 console=/dev/ttyS0,9600
> serverip=10.0.0.150
> ipaddr=10.0.0.200
> ethaddr=08:00:3e:2f:99:7e
> stdin=serial
> stdout=serial
> stderr=serial
>
> I'm using a unmodified version of the MBX configs for the kernel, the
> from the Denx site
> (ftp://ftp.denx.de/pub/LinuxPPC/usr/src/linux-2.4.4-2002-10-06.tar.bz2)
> with no patches.
> If the NVRAM is not the issue, does anyone have a suggestion? I haven't
> the time to build me a debugger :-((
>
> thanks,
>
> RJ
>
>
>
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