netdev - Re: net: hix5hd2_gmac uninitialized net

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Message-ID: <58A3F2A6.3060609@hisilicon.com>
Date:   Wed, 15 Feb 2017 14:18:14 +0800
From:   Dongpo Li <lidongpo@...ilicon.com>
To:     Marty Plummer <netz.kernel@...il.com>
CC:     <netdev@...r.kernel.org>, <yisen.zhuang@...wei.com>,
        <salil.mehta@...wei.com>
Subject: Re: net: hix5hd2_gmac uninitialized net_device

Hi Marty,

On 2017/2/15 7:59, Marty Plummer wrote:
> On Mon, Feb 13, 2017 at 09:25:38AM +0800, Dongpo Li wrote:
>>
>>
>> On 2017/2/11 8:51, Marty Plummer wrote:
>>> On Fri, Feb 10, 2017 at 06:21:35PM +0800, Dongpo Li wrote:
>>>> I think the error "No irq resource" happened for some other reason, has no relation with
>>>> the info "(unnamed net_device) (uninitialized):".
>>>> You can add more debug info to find bug.
>>> Do you have any particular suggestions as to what to check out, or is
>>> this just a general 'debug more' instruction?
>> I haven't encountered such a problem. So it needs you to debug what happens.
>>
> Yes, I've figured out the origin here. It was user error, in that I was
> not nesting the device node under the soc node, which had the
> interrupt-parent property. Moving it there fixed that issue.
> 
> In any case, I've ran into another problem. Basic gist is, I was giving
> it a go on my hi3521a board, because reading the registers for that and
> comparing it to the source, I find they are nearly bit-for-bit
> identical, but I suppose there is some tweakage needed to make it work
> 100%.
> 
> What information would it take to have this driver expanded to enable a
> new, similar SoC?

Currently this driver can't support Hi3521a soc because of some new changes.
I don't know what's your purpose to run hix5hd2 driver on Hi3521a, please ask
the man who sells chips to you to raise your requirements.


    Regards,
    Dongpo

.