From: Marek Vasut <marex@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] arm: socfpga: dm: Fix DM initialization failure after warm reset
Date: Sat, 29 Aug 2015 21:19:42 +0200 [thread overview]
Message-ID: <201508292119.42418.marex@denx.de> (raw)
In-Reply-To: <CAPnjgZ02jq3YtTRvMJ4dkhFZmMKom+=yyWmioO=866EDV+zmtw@mail.gmail.com>
On Saturday, August 29, 2015 at 06:54:54 PM, Simon Glass wrote:
> Hi Marek,
Hi Simon,
[...]
> >> >> Does that mean it skips crt0.S? How come global_data is not zeroed
> >> >> there?
> >> >
> >> > No, it does not mean it skips crt0.S . After the warm reset, the
> >> > bootrom jumps onto the reset vector, so crt0.S (_main) must be
> >> > executed.
> >>
> >> Then I don't understand the need for this patch.
> >
> > Apparently, the gd->dm_root is set to a non-NULL address for some
> > (unknown) reason. I don't quite understand this myself.
> >
> > The only possibility which can lead to gd->dm_root being set to non-NULL
> > address is that crt0.S _main is not executed, is that correct ?
>
> I think so, unless driver model was already inited by a call to
> spl_init(). But I don't see where your board might do that.
That's correct.
Best regards,
Marek Vasut
prev parent reply other threads:[~2015-08-29 19:19 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-28 8:41 [U-Boot] [PATCH] arm: socfpga: dm: Fix DM initialization failure after warm reset Jian Luo
2015-08-28 9:24 ` Marek Vasut
2015-08-28 10:27 ` Jian Luo
2015-08-28 10:30 ` Marek Vasut
2015-08-28 11:40 ` Jian Luo
2015-08-28 12:01 ` Marek Vasut
2015-08-28 12:09 ` Jian Luo
2015-08-28 21:48 ` Marek Vasut
2015-08-31 13:00 ` Jian Luo
2015-08-31 13:28 ` Marek Vasut
2015-09-02 16:27 ` Jian Luo
2015-09-03 9:41 ` Marek Vasut
2015-09-03 10:03 ` Jian Luo
2015-09-03 10:09 ` Marek Vasut
2015-09-03 10:17 ` Jian Luo
2015-09-03 10:46 ` Marek Vasut
2015-09-03 11:12 ` Jian Luo
2015-09-03 11:14 ` Marek Vasut
2015-09-04 0:23 ` Simon Glass
2015-09-04 7:36 ` Jian Luo
2015-09-04 14:16 ` Simon Glass
2015-09-04 14:25 ` Marek Vasut
2015-09-04 14:26 ` Simon Glass
2015-09-04 14:32 ` Marek Vasut
2015-09-22 12:26 ` Jian Luo
2015-08-28 23:21 ` Simon Glass
2015-08-29 7:56 ` Marek Vasut
2015-08-29 14:39 ` Simon Glass
2015-08-29 14:46 ` Marek Vasut
2015-08-29 14:49 ` Simon Glass
2015-08-29 15:45 ` Marek Vasut
2015-08-29 16:54 ` Simon Glass
2015-08-29 19:19 ` Marek Vasut [this message]
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