[U-Boot] [PATCH] nios2: display altera sysid at startup

[Thomas Chou]

Hi Marek,

On 2015年12月16日 21:23, Marek Vasut wrote:
> On Wednesday, December 16, 2015 at 02:10:26 PM, Thomas Chou wrote:
>> Hi Marek,
>
> Hi!
>
>> On 2015年12月16日 18:25, Marek Vasut wrote:
>>> On Wednesday, December 16, 2015 at 09:07:47 AM, Thomas Chou wrote:
>>>> Display altera sysid at startup, which was once removed during
>>>> the move.
>>>>
>>>> Signed-off-by: Thomas Chou <thomas at wytron.com.tw>
>>>
>>> What if the sysid block isn't part of the design ?
>>
>> If the sysid block is not present, nothing will display and it is not an
>> error.
>
> Won't this cause bus stall if you try to access unpopulated location ?

It will be accessed though DT binding. As long as DT is correct, it 
won't access unpopulated location.

With the Altera Avalon bus, even a unpopulated access will not stall.

Best regards,
Thomas