[U-Boot-Users] tftp loadable applets?

[U-Boot-Users] tftp loadable applets?

[Zhen Wang]

JD <davisjf@gmail.com> wrote:

I noticed that there is a tftpboot command.  Is there a similar
mechanism in place for uploading applets via tftp?

I had booted uClinux's compressed zImage utilizing 'tftpboot' command 
and a following 'go' command as my 'CONFIG_BOOTCOMMAND' successfully.
Though I haven't tried to use 'tftpboot' to load applets, it seems 
possible in that zImage is also a binary file(not ELF). The 
'CONFIG_BOOTCOMMAND' and some relevant configurations were configured as 
below in my include/configs/<board>.h:

#define	CFG_LOAD_ADDR		0x0c480000
#define CONFIG_BOOTFILE		"zImage"
#define CONFIG_BOOTCOMMAND	"tftpboot\; go 0c480000"

Note: 0x0c480000 is in the SDRAM address range.

Regards,

Zhen Wang

[U-Boot-Users] tftp loadable applets?

[Wolfgang Denk]

In message <438CE99B.9000201@gmail.com> you wrote:
> 
> I noticed that there is a tftpboot command.  Is there a similar
> mechanism in place for uploading applets via tftp?

No.

> I had booted uClinux's compressed zImage utilizing 'tftpboot' command 
> and a following 'go' command as my 'CONFIG_BOOTCOMMAND' successfully.

And you have probably read in the  manual  that  this  is  *not*  the
correct  way  to  boot  Linux  images. You are supposed to use proper
image files and the "bootm" command.

> Though I haven't tried to use 'tftpboot' to load applets, it seems 
> possible in that zImage is also a binary file(not ELF). The 

"It seems possible." Wow. You really understand what you  are  doing,
aren't you?

> 'CONFIG_BOOTCOMMAND' and some relevant configurations were configured as 
> below in my include/configs/<board>.h:

And why are you posting this information? I can't find a question  or
hint of a problem?

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
If you can't beat it or corrupt it, you pretend it was your  idea  in
the first place.                 - Terry Pratchett, _Guards! Guards!_

[U-Boot-Users] tftp loadable applets?

[John Davis]

Hello

I noticed that there is a tftpboot command.  Is there a similar
mechanism in place for uploading applets via tftp?

JD

[U-Boot-Users] tftp loadable applets?

[Wolfgang Denk]

In message <6a7ac2300511290239k677fafe1w72c70147e44c5b57@mail.gmail.com> you wrote:
> 
> I noticed that there is a tftpboot command.  Is there a similar
> mechanism in place for uploading applets via tftp?

Why would you need something different? Just use the tftp command  to
download  your  standalone  code  like  you use it to load OS images,
ramdisks, or anything else.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Like winter snow on summer lawn, time past is time gone.

[U-Boot-Users] tftp loadable applets?

[John Davis]

Hello Wolfgang,

Hmm.  I didn't know there was such a command.  When I did help at the
uboot prompt, I only saw tftpboot.  I guess I need to determine how to
include this command.  Or is it a command which does not have a help
text?

JD

On 11/29/05, Wolfgang Denk <wd@denx.de> wrote:
> In message <6a7ac2300511290239k677fafe1w72c70147e44c5b57@mail.gmail.com> you wrote:
> >
> > I noticed that there is a tftpboot command.  Is there a similar
> > mechanism in place for uploading applets via tftp?
>
> Why would you need something different? Just use the tftp command  to
> download  your  standalone  code  like  you use it to load OS images,
> ramdisks, or anything else.
>
> Best regards,
>
> Wolfgang Denk
>
> --
> Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
> Like winter snow on summer lawn, time past is time gone.
>

[U-Boot-Users] tftp loadable applets?

[Wolfgang Denk]

In message <6a7ac2300511290426n5acea443o4ea8eb9874e0ff26@mail.gmail.com> you wrote:
> 
> Hmm.  I didn't know there was such a command.  When I did help at the
> uboot prompt, I only saw tftpboot.  I guess I need to determine how to
> include this command.  Or is it a command which does not have a help
> text?

All command names can be abbreviated as long as they are  unique.  It
does  not matter if you type "tftpboot" or "tftp" or just "tf" - it's
all the same.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"A little knowledge is a dangerous thing."                - Doug Gwyn