[U-Boot] [U-boot] Export functions using Jumptable in Standalone application

[U-Boot] [U-boot] Export functions using Jumptable in Standalone application

[Nagesh.ML]

Hi,

In one of my standalone application used for initializing the
hardware(Ethernet Switch) registers, I have exported two functions
miiphy_read() and miiphy_write() of u-boot as per the procedure given in
README.standalone document. By doing so, will my standalone application come
under GPL? If yes, is there any other way to implement this?

--Nagesh.
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[U-Boot] [U-boot] Export functions using Jumptable in Standalone application

[Wolfgang Denk]

Dear "Nagesh.ML",

In message <20144414.post@talk.nabble.com> you wrote:
> 
> In one of my standalone application used for initializing the
> hardware(Ethernet Switch) registers, I have exported two functions
> miiphy_read() and miiphy_write() of u-boot as per the procedure given in
> README.standalone document. By doing so, will my standalone application come
> under GPL? If yes, is there any other way to implement this?

Is this initialization necessary for the network operation in U-Boot?

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
If you believe that feeling bad or worrying long enough will change a
past or future event, then you are residing on another planet with  a
different reality system.

[U-Boot] [U-boot] Export functions using Jumptable in Standalone application

[Nagesh.ML]

Hi,

Yes we require this initialization of the switch for network operation.

--Nagesh.


wd wrote:
> 
> Dear "Nagesh.ML",
> 
> In message <20144414.post@talk.nabble.com> you wrote:
>> 
>> In one of my standalone application used for initializing the
>> hardware(Ethernet Switch) registers, I have exported two functions
>> miiphy_read() and miiphy_write() of u-boot as per the procedure given in
>> README.standalone document. By doing so, will my standalone application
>> come
>> under GPL? If yes, is there any other way to implement this?
> 
> Is this initialization necessary for the network operation in U-Boot?
> 
> Best regards,
> 
> Wolfgang Denk
> 
> -- 
> DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
> If you believe that feeling bad or worrying long enough will change a
> past or future event, then you are residing on another planet with  a
> different reality system.
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
> 
> 

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[U-Boot] [U-boot] Export functions using Jumptable in Standalone application

[Wolfgang Denk]

Dear "Nagesh.ML",

In message <20201180.post@talk.nabble.com> you wrote:
> 
> Yes we require this initialization of the switch for network operation.
...
> > Is this initialization necessary for the network operation in U-Boot?

If the initialization is needed to run Ethernet, and if  you  ant  to
use  network  functions  in  U-Boot, then you should link the code to
initialize the Ethernet hardware with the U-Boot image.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
I really hate this damned machine     It never does quite what I want
I wish that they would sell it.              But only what I tell it.

[U-Boot] [U-boot] Export functions using Jumptable in Standalone application

[Nagesh.ML]

Hi,

Thanks for your responses Wolfgang!
-
I think in that case if I link the initialization code with the u-boot
image, then my standalone application will come under GPL conditions, right?
          If I dont do any network operations in U-boot(dont link the code
with u-boot image), just do the hardware initialization of the switch
registers only, then will my standalone application have any sort of issues
with respect to the GPL?

--Nagesh


wd wrote:
> 
> Dear "Nagesh.ML",
> 
> In message <20201180.post@talk.nabble.com> you wrote:
>> 
>> Yes we require this initialization of the switch for network operation.
> ...
>> > Is this initialization necessary for the network operation in U-Boot?
> 
> If the initialization is needed to run Ethernet, and if  you  ant  to
> use  network  functions  in  U-Boot, then you should link the code to
> initialize the Ethernet hardware with the U-Boot image.
> 
> Best regards,
> 
> Wolfgang Denk
> 
> -- 
> DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
> I really hate this damned machine     It never does quite what I want
> I wish that they would sell it.              But only what I tell it.
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
> 
> 

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[U-Boot] [U-boot] Export functions using Jumptable in Standalone application

[Wolfgang Denk]

Dear Nagesh,

in message <20220629.post@talk.nabble.com> you wrote:
> 
> I think in that case if I link the initialization code with the u-boot
> image, then my standalone application will come under GPL conditions, right?

Yes, of course.

>           If I dont do any network operations in U-boot(dont link the code
> with u-boot image), just do the hardware initialization of the switch
> registers only, then will my standalone application have any sort of issues
> with respect to the GPL?

If you do not want to use the network  interface  then  there  is  no
reason to initialize the switch in U-Boot. Design rules say that only
such devices shall be initialized that are used by U-Boot itself, see
bullet 2 at
http://www.denx.de/wiki/view/U-Boot/DesignPrinciples#2_Keep_it_Fast

I am not a lawyer, but my general feeling is that you  should  accept
the fact that U-Boot is under GPL.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"If that makes any sense to you, you have a big problem."
                                  -- C. Durance, Computer Science 234