netdev - Re: [PATCH v2] net: sh-eth: Add flag to determine the type of TSU register

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Date:	Wed, 05 Jun 2013 14:12:42 +0900
From:	Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:	netdev@...r.kernel.org, yoshihiro.shimoda.uh@...esas.com
Subject: Re: [PATCH v2] net: sh-eth: Add flag to determine the type of TSU
 register

Hi,

(2013/06/05 2:19), Sergei Shtylyov wrote:
> Hello.
>
> On 05/07/2013 06:44 PM, I wrote:
>
>> You shouldn't have posted this patch (and the subsequent series) during the merge window, as David will probably tell you.
>>
>> On 07-05-2013 9:08, Nobuhiro Iwamatsu wrote:
>>
>>> Some sh-eth devices may have two ether devices inside.
>>
>> You probably meant to say: "some SoCs may have two Ether devices inside".
>>
>>> And the function of TSU is accessed from each ether device.
>>> In this case, sh-eth need to remap address using devm_ioremap(),
>>> without using devm_ioremap_resource().
>>
>> You could use devm_ioremap_resource() for the 1st Ether instance, and devm_ioremap() for the 2nd, couldn't you?
>

Yes, hmm. I will rewrite this patch.

> Wait, you can't have the same resource on both platform devices, that's a resource conflict.

yes, therefore, we are using lock in sh_eth_set_multicast_list function.

>
>>
>>> tsu_shared_reg of sh_eth_cpu_data is used for this control.
>>
>>> Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
>>
>
> WBR, Sergei
>
>

Best regards,
   Nobuhiro
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