[U-Boot] [PATCH] nios2: remove EP1C20, EP1S10, EP1S40 boards

[Thomas Chou <thomas@wytron.com.tw>]

Hi Scott,

On 04/22/2010 08:36 PM, Scott McNutt wrote:
>> With nios2-generic approach, the fpga parameter header file can
>> be generated from hardware designs using tools. Porting u-boot for
>
>
> What tools are you referring to?
There are two tools.

1. sopc-create-header-files

It is included in altera design suite v8.0 or later. I used this in the 
initial version of nios2-generic board.

2. sopc-create-config-files

The script is available at

  http://sopc.et.ntust.edu.tw/?p=toolchain-build.git;
a=blob_plain;f=tools/sopc-create-config-files;hb=HEAD

I wrote this to generate unified u-boot header files, while I was 
discussing with Michal Simek. He liked this approach and I got his 
Acked-by of this patch.


>
> Support for several Altera nios2 boards has been available in u-boot
> for at least four years. To date, this vendor has offered no support
> whatsoever, either through patches, files, consultation or otherwise.
>
> Is there any reason you believe this is likely to change?
We really appreciate your work. But these boards are getting obsolete, 
and there are more new boards unsupported. We cannot add every board, 
and a generic approach should be taken as Michal suggested. We, (you, I 
, the community and Altera), should work together to offer a better 
solution.

The binary generated with the nios2-generic target should work on these 
three boards. I tested on  EP1C20 and I believe it will work on the 
other two. These boards are still supported, just under a different name.


>> no need to include other boards support for nios2 in the u-boot
>> mainline.
>
> I'm not convinced that this is true.
>
Michal's work on microblaze-generic already proved this.

Best regards,
Thomas