[U-Boot-Users] u-boot and uClinux
Has anyone used u-boot with uClinux? I am wondering about using u-boot with a MMU-less ARM7TDMI based SoC. Has anyone used u-boot with a MMU-less processor?
Having read the README I know u-boot offers a lot functionality when booting linux. I don't care so much about tight integration with linux, but I am _very_ interested in the nice features of the u-boot monitor.
Does the u-boot monitor dependend on an MMU?
Thanks for all the input.
Cheers, Curt
Hi All
Iam in process of porting u-boot to BF533. Is there already a port available for BF533 ?.
thanx in advance mansoor
In message 0f6701c3fe9e$c9c1b930$c300a8c0@mansoor you wrote:
Iam in process of porting u-boot to BF533. Is there already a port available for BF533 ?.
None that I know of.
Best regards,
Wolfgang Denk
g'day...
Playing around with my tuxscreen today and I see following error message when using jffs2:
TuxScreen # ls /boot Scanning JFFS2 FS: ......... done. ** ERROR ** boot has dup version = 00000034 drwxr-xr-x 0 Sat Sep 15 08:07:33 2001 var -rwxr-xr-x 566416 Wed May 01 08:56:38 2002 linux drwxr-xr-x 0 Sat Sep 15 08:07:33 2001 var -rwxr-xr-x 566416 Wed May 01 08:56:38 2002 linux
Does it come from an bad jffs2 image? Seems every jffs2 entry exists twice (o;
TuxScreen # ls / drwxr-xr-x 0 Wed May 01 09:09:41 2002 bin drwxr-xr-x 0 Wed May 01 06:55:18 2002 etc drwxr-xr-x 0 Mon Nov 22 17:20:58 1999 home drwxr-xr-x 0 Wed May 01 09:09:41 2002 lib drwxr-xr-x 0 Wed Jan 21 21:30:34 1998 mnt drwxr-xr-x 0 Mon Nov 22 17:21:08 1999 opt drwxr-xr-x 0 Wed Nov 03 00:54:07 1999 proc drwxr-xr-x 0 Mon Nov 22 17:21:16 1999 root drwxr-xr-x 0 Wed May 01 09:09:41 2002 sbin drwxr-xr-x 0 Wed May 01 06:55:05 2002 usr drwxr-xr-x 0 Wed May 01 06:55:17 2002 var drwxr-xr-x 0 Wed May 01 06:55:37 2002 boot lrwxrwxrwx 8 Wed May 01 06:55:04 2002 tmp -> /var/tmp lrwxrwxrwx 8 Wed May 01 06:55:04 2002 dev -> /var/dev -rwxr-xr-x 1450 Fri Apr 12 05:07:02 2002 linuxrc drwxr-xr-x 0 Wed May 01 09:09:41 2002 bin drwxr-xr-x 0 Wed May 01 06:55:18 2002 etc drwxr-xr-x 0 Mon Nov 22 17:20:58 1999 home drwxr-xr-x 0 Wed May 01 09:09:41 2002 lib drwxr-xr-x 0 Wed Jan 21 21:30:34 1998 mnt drwxr-xr-x 0 Mon Nov 22 17:21:08 1999 opt drwxr-xr-x 0 Wed Nov 03 00:54:07 1999 proc drwxr-xr-x 0 Mon Nov 22 17:21:16 1999 root drwxr-xr-x 0 Wed May 01 09:09:41 2002 sbin drwxr-xr-x 0 Wed May 01 06:55:05 2002 usr drwxr-xr-x 0 Wed May 01 06:55:17 2002 var drwxr-xr-x 0 Wed May 01 06:55:37 2002 boot lrwxrwxrwx 8 Wed May 01 06:55:04 2002 tmp -> /var/tmp lrwxrwxrwx 8 Wed May 01 06:55:04 2002 dev -> /var/dev -rwxr-xr-x 1450 Fri Apr 12 05:07:02 2002 linuxrc
rick
In message <r02010100-1032-AFCFE30E6A9911D8B70B00039387ACB6@[10.0.1.1]> you wrote:
Playing around with my tuxscreen today and I see following error message when using jffs2:
TuxScreen # ls /boot Scanning JFFS2 FS: ......... done. > ** ERROR ** boot has dup version = 00000034 >
Which exact version of U-Boot is this?
Best regards,
Wolfgang Denk
Evening (o;
Who else is using u-boot on Tuxscreen/Shannon or any other SA1100 platform?
After loading a kernel from serial or from jffs2 partition it uncompresses it and then stops executing...
### JFFS2 load complete: 583892 bytes loaded to 0xd0000000 TuxScreen # go d0000000 ## Starting application at 0xD0000000 ... Uncompressing Linux....................................... done, booting the kernel.
Don't want to switch back to "blob" (o;
rick
Hi Curt,
Has anyone used u-boot with uClinux? I am wondering about using u-boot with a MMU-less ARM7TDMI based SoC. Has anyone used u-boot with a MMU-less processor?
We actually use u-boot on Netsilicons NET+50 based boards (board/modnet50). The NET+50 is an ARM7TDMI CPU without MMU. Booting uClinux works just fine.
Does the u-boot monitor dependend on an MMU?
Take a look at the ARM720t CPU directory. All modifications needed to run u-boot on the NET+50 have been done by ifdefs (CONFIG_NETARM).
regards Thomas
-- Thomas Elste IMMS gGmbH <www.imms.de> Langewiesener Straße 22 98693 Ilmenau, Germany
In message 20040228154010.A4785@curtisb.com you wrote:
Has anyone used u-boot with uClinux? I am wondering about using
Yes.
u-boot with a MMU-less ARM7TDMI based SoC. Has anyone used u-boot with a MMU-less processor?
Yes, of course.
Having read the README I know u-boot offers a lot functionality when booting linux. I don't care so much about tight integration with linux, but I am _very_ interested in the nice features of the u-boot monitor.
The fact that U-Boot is linux-friendy does not mean that Linux is all it supports.
Does the u-boot monitor dependend on an MMU?
Not at all. If you had checked the list of supported systems you should have seen that there are a lot of MMU-less AREM, PowerPC and MIPS systems which are supported by U-Boot.
Best regards,
Wolfgang Denk
participants (5)
-
Curt Brune -
mansoor -
Richard Klingler -
Thomas Elste -
Wolfgang Denk