From: Peng Ma <peng.ma@nxp.com>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Vinod Koul <vkoul@kernel.org>,
"dmaengine@vger.kernel.org" <dmaengine@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Fabio Estevam <fabio.estevam@nxp.com>,
Leo Li <leoyang.li@nxp.com>, Andy Tang <andy.tang@nxp.com>
Subject: RE: [EXT] [BUG BISECT] Net boot fails on VF50 after "dmaengine: fsl-edma: support little endian for edma driver"
Date: Fri, 5 Jul 2019 02:04:20 +0000 [thread overview]
Message-ID: <VI1PR04MB4431E18760FCB6CE32E5717DEDF50@VI1PR04MB4431.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <CAJKOXPdYJKe019CKT=hPRXLejMdZ1KNzxpFh60ruToKOqnAorQ@mail.gmail.com>
Hi Krzysztof,
Got it. Thanks for your help
Best Regards,
Peng
>-----Original Message-----
>From: Krzysztof Kozlowski <krzk@kernel.org>
>Sent: 2019年7月4日 20:57
>To: Peng Ma <peng.ma@nxp.com>
>Cc: Vinod Koul <vkoul@kernel.org>; dmaengine@vger.kernel.org;
>linux-kernel@vger.kernel.org; Fabio Estevam <fabio.estevam@nxp.com>; Leo
>Li <leoyang.li@nxp.com>; Andy Tang <andy.tang@nxp.com>
>Subject: Re: [EXT] [BUG BISECT] Net boot fails on VF50 after "dmaengine:
>fsl-edma: support little endian for edma driver"
>
>Caution: EXT Email
>
>On Thu, 4 Jul 2019 at 04:10, Peng Ma <peng.ma@nxp.com> wrote:
>>
>> Hi Krzysztof,
>>
>> I am sorry, It is my mistake to forget about VF50 used EDMA IP with little
>endian.
>> The Register(CHCFG0 - CHCFG15) of our platform designed as follows:
>> *---------------------------------------------------------------------
>> ----------*
>> | Offset | Big endian Register| Little endian Register|
>> |---------------------|--------------------------|-----------------------------|
>> | 0x0 | CHCFG0 | CHCFG3 |
>> |---------------------|--------------------------|-----------------------------|
>> | 0x1 | CHCFG1 | CHCFG2 |
>> |---------------------|--------------------------|-----------------------------|
>> | 0x2 | CHCFG2 | CHCFG1 |
>> |---------------------|--------------------------|-----------------------------|
>> | 0x3 | CHCFG3 | CHCFG0 |
>> |---------------------|--------------------------|-----------------------------|
>> | ... | ...... | ...... |
>> |---------------------|--------------------------|-----------------------------|
>> | 0xC | CHCFG12 | CHCFG15 |
>> |---------------------|--------------------------|-----------------------------|
>> | 0xD | CHCFG13 | CHCFG14 |
>> |---------------------|--------------------------|-----------------------------|
>> | 0xE | CHCFG14 | CHCFG13 |
>> |---------------------|--------------------------|-----------------------------|
>> | 0xF | CHCFG15 | CHCFG12 |
>> *---------------------------------------------------------------------
>> ----------*
>>
>> So we need this patch, I make some changes,Please help me to test
>> attatchment on VF50 board, Thanks.
>
>With the patch VF50 boots fine.
>
>BTW, Colibri VF50 nicely boots from network almost out of the box so it is easy
>to add it to automated tests for simple boot tests. This way you do not have to
>manually test it on such platform...
>
>Best regards,
>Krzysztof
prev parent reply other threads:[~2019-07-05 2:05 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-02 12:12 [BUG BISECT] Net boot fails on VF50 after "dmaengine: fsl-edma: support little endian for edma driver" Krzysztof Kozłowski
2019-07-02 12:16 ` Krzysztof Kozlowski
2019-07-02 13:04 ` Fabio Estevam
2019-07-02 13:10 ` Krzysztof Kozlowski
2019-07-02 14:18 ` Fabio Estevam
2019-07-04 2:10 ` [EXT] " Peng Ma
2019-07-04 12:06 ` Fabio Estevam
2019-07-05 2:02 ` Peng Ma
2019-07-04 12:57 ` Krzysztof Kozlowski
2019-07-05 2:04 ` Peng Ma [this message]
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