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Date:      Sun, 06 Apr 2014 23:16:17 +0200
From:      Andreas Tobler <andreast-list@fgznet.ch>
To:        Milan Obuch <milan@obuch.sk>
Cc:        freebsd-arm@FreeBSD.org, Ian Lepore <ian@FreeBSD.org>
Subject:   Re: MARVELL BOARD: RD-88F6281A -CURRENT
Message-ID:  <5341C421.90209@fgznet.ch>
In-Reply-To: <20140406230716.13113e35@zeta.dino.sk>
References:  <53406D94.5020605@fgznet.ch>	<1396732234.81853.334.camel@revolution.hippie.lan>	<53407B53.4040807@fgznet.ch>	<1396737091.81853.339.camel@revolution.hippie.lan>	<5341AE1C.4040207@fgznet.ch>	<1396815052.81853.346.camel@revolution.hippie.lan>	<5341BC93.6080105@fgznet.ch> <20140406230716.13113e35@zeta.dino.sk>

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On 06.04.14 23:07, Milan Obuch wrote:
> On Sun, 06 Apr 2014 22:44:03 +0200
> Andreas Tobler <andreast-list@fgznet.ch> wrote:
> 
>> On 06.04.14 22:10, Ian Lepore wrote:
>>> On Sun, 2014-04-06 at 21:42 +0200, Andreas Tobler wrote:
>>>> On 06.04.14 00:31, Ian Lepore wrote:
>>>>> On Sat, 2014-04-05 at 23:53 +0200, Andreas Tobler wrote:
> 
> [ snip ]
> 
>>>>>> Sure, now I 'hang' in an other area.
>>>>>>
>>>>>> mge0: <Marvell Gigabit Ethernet controller> mem 0x72000-0x73fff
>>>>>> irq 12,13,14,11,46 on simplebus0
>>>>>> mge0: Ethernet address: 00:d0:b8:1e:3b:df
>>>>>> mge0: attaching PHYs failed
>>>>>> --> hangs
>>>>>> According to the u-boot env I have two eth's and only the second
>>>>>> is wired and used.
>>>>>>
>>>>>> From u-boot:
>>>>>> Net:   egiga0, egiga1 [PRIME]
>>>>>>
>>>>>> Now my questions, how do I enable verbose boot? On PowerPC I
>>>>>> know I have to do it in boot/loader.conf, here too?
>>>>>>
>>>>>> I guess my hardware is different from an eval board, so I expect
>>>>>> I'd need a customized dts, no? If so, how do I get the
>>>>>> information out of the u-boot?
>>>>>> Again, thx a lot!
>>>>>> Andreas
>>>>>
>>>>> You're probably not even using loader(8) but rather launching the
>>>>> kernel directly (only newer arm systems and newer versions of
>>>>> u-boot use loader).  That means things like tunables and
>>>>> bootverbose have to be hacked into the kernel, at least for now
>>>>> to make some progress.  The initarm_early_init() routine in
>>>>> arm/mv/mv_machdep.c is a good place to throw in a bootverbose=1.
>>>>
>>>> Ok. I did it in sys/kern/init_main.c
>>>>
>>>>> For disabling egiga0 just add status="disabled" to its entry in
>>>>> the dts file.  Have a look at the dreamplug dts files for an
>>>>> example of setting up egiga1, but I'm not sure everything will be
>>>>> exactly the same.  You may need to transplant the phy0 entry from
>>>>> egiga0 into egiga1 for that box.
>>>>
>>>> Good start, thanks.
>>>>
>>>>> The 'bdinfo' command in u-boot sometimes shows lots of good info,
>>>>> sometimes not so much.
>>>>
>>>> Hm, this command is not available in my env.
>>>> Anyway, I figured to play with the regs in the enet dts section
>>>> and I managed to get it up. Unfortunately I don't get any dhcp
>>>> requests to the server, so no ack can be given. I'll play around.
>>>>
>>>> Sending DHCP Discover packet from interface mge0
>>>> (00:d0:b8:1e:3b:df) ....
>>>> DHCP/BOOTP timeout for server 255.255.255.255
>>>> ....
>>>>
>>>> Thanks again!
>>>> Andreas
>>>
>>> I just realized that there's likely to be dts source for that box in
>>> linux, and sure enough:
>>>
>>> https://github.com/torvalds/linux/blob/master/arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts
>>>
>>> There should be a lot of good clues in there, although we're not
>>> quite so compatible that you can necessarily just paste linux dts
>>> code into our dts files.
>>
>> Yep, this is the place where I got the reg info, to change from xx to
>> 0xb to get the interface attached. But nevertheless, I do not see any
>> packets coming from this board. The tftpboot works, the dhcp-server
>> works too, tested with ppc netboot. But this board does not really
>> send out DHCPREQUESTS to the DHCP server.
>>
>> But maybe I hunt in the wrong place, I have to compare the other
>> entries. Right now I concentrated on the eth0/1 part.
>>
>> Thanks.
>> Andreas
>>
> 
> Maybe you need to check pin multiplexer setup. If eth1 is not connected
> to pins, there is no connectivity. Some time ago I did have just this
> problem - no packets on the wire, but it looked like mge1 interface
> works well... after I found multiplexed pin setup, all was clear to me.

Hm, would you mind giving me a hands on? Where and what do I have to check?

As said, new to the arm and fdt/dts world.

TIA,
Andreas




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