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From: Sam Ravnborg <sam@ravnborg.org>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Barebox List <barebox@lists.infradead.org>
Subject: Re: [PATCH v1 3/3] at91sam9263ek: add bootstrap support
Date: Thu, 3 Jan 2019 11:58:00 +0100	[thread overview]
Message-ID: <20190103105800.GA27356@ravnborg.org> (raw)
In-Reply-To: <20190103081606.yz2s7q4jxzgpz2yt@pengutronix.de>

Hi Sascha.

> > Fix lowlevel init to get reset vector.
> > 
> > Add new MACH_AT91SAM9263EK_BOOTSTRAP config entry
> > used when building the bootstrap variant.
> > The new config entry is required as we cannot combine MULTI_IMAGE
> > with a bootstrap variant.
> 
> Why can't that be combined?

The bootstrap support did not play well with the PBL support.
And MULTI_IMAGE somehow forced this on me.

I did not dive deep into why bootstrap and MULTI_IMAGE did not work.
I looked at the binraty using objdump, and could see that without

Unless there are something I missed so PBL support should work I will
update the commit message for a v2 of the pathset.

Note: I also had to disable MMU support to get bootstrap working.
With MMU enable it halted when __mmu_cache_on() was called in
mmu-early.c
I will also try to look a little deeper into this, but here I have
only limited hope as my debugging is so far limited to
using pr_info(...).

	Sam

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  reply	other threads:[~2019-01-03 10:58 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-02 20:26 [PATCH v1 0/3] bootstrap support for AT91SAM9263-EK Sam Ravnborg
2019-01-02 20:26 ` [PATCH v1 1/3] arm: at91: fix clock to mci1 for at91sam9263 Sam Ravnborg
2019-01-06 20:39   ` Sam Ravnborg
2019-01-07  7:29   ` Sascha Hauer
2019-01-02 20:26 ` [PATCH v1 2/3] lib: bootstrap: detect SD card before mounting Sam Ravnborg
2019-01-02 23:32   ` Andrey Smirnov
2019-01-03  5:46     ` Sam Ravnborg
2019-01-03 19:53       ` Sam Ravnborg
2019-01-04  7:46         ` Sascha Hauer
2019-01-06 20:39           ` Sam Ravnborg
2019-01-02 20:26 ` [PATCH v1 3/3] at91sam9263ek: add bootstrap support Sam Ravnborg
2019-01-03  8:16   ` Sascha Hauer
2019-01-03 10:58     ` Sam Ravnborg [this message]
2019-01-03 21:00       ` Sam Ravnborg
2019-01-04  7:37         ` Sascha Hauer

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