[U-Boot] USB not working with 4.3.2 gcc compiler in u-boot 1.1.5

[U-Boot] USB not working with 4.3.2 gcc compiler in u-boot 1.1.5

[virupax]

Hi

I am using  arm-unknown-linux-gnueabi-gcc 4.3.2 compiler to compile the
u-boot 1.1.5 for the at91sam9260 board. When i use this u-boot image usb
start command is not detecting the connected usb stick.
Request Sense returned 00 00 00
Device NOT ready
   Request Sense returned 00 00 00

If use some other old compiler to compile this u-boot, usb works fine in
that image.

Some pls guide me what may be the difference.



 

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[U-Boot] USB not working with 4.3.2 gcc compiler in u-boot 1.1.5

[Ben Warren]

virupax wrote:
> Hi
>
> I am using  arm-unknown-linux-gnueabi-gcc 4.3.2 compiler to compile the
> u-boot 1.1.5 for the at91sam9260 board. When i use this u-boot image usb
> start command is not detecting the connected usb stick.
> Request Sense returned 00 00 00
> Device NOT ready
>    Request Sense returned 00 00 00
>
> If use some other old compiler to compile this u-boot, usb works fine in
> that image.
>
> Some pls guide me what may be the difference.
>
>   
Your version of U-boot is about 3 years old.  Nobody will be interested 
in debugging it.  Please update to the latest and see if the problem exists.

regards,
Ben

[U-Boot] USB not working with 4.3.2 gcc compiler in u-boot 1.1.5

[Remy Bohmer]

Hello,

2009/7/17 Ben Warren <biggerbadderben@gmail.com>:
> virupax wrote:
>> Hi
>>
>> I am using ?arm-unknown-linux-gnueabi-gcc 4.3.2 compiler to compile the
>> u-boot 1.1.5 for the at91sam9260 board. When i use this u-boot image usb
>> start command is not detecting the connected usb stick.
>> Request Sense returned 00 00 00
>> Device NOT ready
>> ? ?Request Sense returned 00 00 00
>>
>> If use some other old compiler to compile this u-boot, usb works fine in
>> that image.
>>
>> Some pls guide me what may be the difference.
>>
>>
> Your version of U-boot is about 3 years old. ?Nobody will be interested
> in debugging it. ?Please update to the latest and see if the problem exists.

This problem is indeed solved about a year ago. It was a problem with
all gcc-4.x ARM compilers that compiled the code badly.
It was solved by refactoring the code a little, such that the compiler
produces correct output. (see the code)

So, indeed: move to the current version. (the at91sam9260-ek board is
supported by mainline, so why do you use this prehistoric version
anyway?)

Kind Regards,

Remy

[U-Boot] USB not working with 4.3.2 gcc compiler in u-boot 1.1.5

[Virupax SS]

Thanks 

You are correct if i use u-boot 1.3.0 with this 4.3.2 compiler, usb works 
fine.
we have done a lot of customization on u-boot 1.1.5 and it will take a lot 
of time to do those changes to the new u-boot 1.3.0. 


can u please tell me what compiler related change is done in the new 
u-boot releases so it works with the 4.3.2 GCC compiler.In which part of 
the code it is done , is it in the makefile.


When we used 4.3.2 gcc to compile the u-boot 1.1.5 , ethernet drivers were 
not working and after making some of the variables volatile , ethernet 
driver worked fine.

i made
struct  _AT91S_RxTdDescriptor
struct _AT91S_TxTdDescriptor
volatile for the macb driver , ( driver for the inbult macb in 
at91sam9260).

For the USB driver also some variable has to be volatile , but i am not 
been able to figure out which one it should be.
I have seen using the USB analyser , Data packets are not coming out of 
the USB controller correctly. 


Thanks 







Ben Warren <biggerbadderben@gmail.com> 
07/17/2009 09:43 AM

To
virupax <virupax.ss@lntemsys.com>
cc
u-boot at lists.denx.de
Subject
Re: [U-Boot] USB not working with 4.3.2 gcc compiler in u-boot 1.1.5






virupax wrote:
> Hi
>
> I am using  arm-unknown-linux-gnueabi-gcc 4.3.2 compiler to compile the
> u-boot 1.1.5 for the at91sam9260 board. When i use this u-boot image usb
> start command is not detecting the connected usb stick.
> Request Sense returned 00 00 00
> Device NOT ready
>    Request Sense returned 00 00 00
>
> If use some other old compiler to compile this u-boot, usb works fine in
> that image.
>
> Some pls guide me what may be the difference.
>
> 
Your version of U-boot is about 3 years old.  Nobody will be interested 
in debugging it.  Please update to the latest and see if the problem 
exists.

regards,
Ben

[U-Boot] USB not working with 4.3.2 gcc compiler in u-boot 1.1.5

[Wolfgang Denk]

Dear Virupax SS,

In message <OFD81A0F58.8612F8F9-ON652575F6.002D2C08-652575F6.0030964A@lntemsys.com> you wrote:
>
> You are correct if i use u-boot 1.3.0 with this 4.3.2 compiler, usb works 
> fine.

Good. Note that U-Boot 1.3.0 is very, very old, too.

> we have done a lot of customization on u-boot 1.1.5 and it will take a lot 
> of time to do those changes to the new u-boot 1.3.0. 

"new u-boot 1.3.0" is an oxymoron. U-Boot 1.3.0 is nearly two years
old.

I hope you will now learn the lesson of what it gives to you to
maintain an out-of-tree port. If you had pushed your changes upstream
when 1.1.5 was current, you wouldn't have any problems now. I can only
hope that you will do this after adapting your code to a recent code
base (make sure to use top-of-tree from git for this).

> can u please tell me what compiler related change is done in the new 
> u-boot releases so it works with the 4.3.2 GCC compiler.In which part of 
> the code it is done , is it in the makefile.

It makes no sense to attempt to backport that stuff to such an ancient
release. Please update your code.

> When we used 4.3.2 gcc to compile the u-boot 1.1.5 , ethernet drivers were 
> not working and after making some of the variables volatile , ethernet 
> driver worked fine.

We don't access registers through (volatile) pointers any more for
this very reason - today we are using proper accessor functions that
make sure compiler optimizations will do no harm.

Just use current code.


Best regards,

Wolfgang Denk

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