From: Thomas Chou <thomas@wytron.com.tw>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] nios2: display altera sysid at startup
Date: Wed, 16 Dec 2015 21:44:04 +0800 [thread overview]
Message-ID: <56716AA4.6000201@wytron.com.tw> (raw)
In-Reply-To: <201512161423.23814.marex@denx.de>
Hi Marek,
On 2015?12?16? 21:23, Marek Vasut wrote:
> On Wednesday, December 16, 2015 at 02:10:26 PM, Thomas Chou wrote:
>> Hi Marek,
>
> Hi!
>
>> On 2015?12?16? 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@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
next prev parent reply other threads:[~2015-12-16 13:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-16 8:07 [U-Boot] [PATCH] nios2: display altera sysid at startup Thomas Chou
2015-12-16 10:25 ` Marek Vasut
2015-12-16 13:10 ` Thomas Chou
2015-12-16 13:23 ` Marek Vasut
2015-12-16 13:44 ` Thomas Chou [this message]
2015-12-16 14:01 ` Marek Vasut
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