[U-Boot] [PATCH] board/t1024rdb: enable board-level reset when issuing reset command

York Sun york.sun at nxp.com
Tue Apr 11 21:01:11 UTC 2017


On 04/11/2017 02:16 AM, Shengzhou Liu wrote:
>
>> -----Original Message-----
>> From: York Sun [mailto:york.sun at nxp.com]
>> Sent: Tuesday, April 11, 2017 1:14 AM
>> To: Shengzhou Liu <shengzhou.liu at nxp.com>; u-boot at lists.denx.de
>> Subject: Re: [PATCH] board/t1024rdb: enable board-level reset when issuing
>> reset command
>>
>> On 04/10/2017 01:14 AM, Shengzhou Liu wrote:
>>> As board-specific reset logic, it needs to issue reset signal via CPLD
>>> when issuing 'reset' command in u-boot, this patch solves the issue of
>>> reset command not working on T1024RDB.
>>
>> Shengzhou,
>>
>> Doesn't the RST_REQ signal work for this board?
>>
>> York
>
> York,
>
> Yes, RST_REQ can't reliably work without CPLD reset on T1024RDB, it needs a board-level reset via CPLD reset logic.

Why? Isn't it a hardware problem? If this is something cannot be fixed, 
we can add this as a software workaround. Let's make it clear.

York



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