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From: Peter Tyser <ptyser@xes-inc.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Standalone API examples on the P4080DS
Date: Fri, 16 Jan 2015 11:08:01 -0600	[thread overview]
Message-ID: <1421428081.3122.29.camel@xes-inc.com> (raw)
In-Reply-To: <54B8F3BA.3090309@rapitasystems.com>

Hi David,


> It looks like the entry point is 0x40000. Why does the tutorial state
> that the example needs to be run from a 4 byte offset? In this case 
> this
> will result in a failure to create a stack frame for hello_world.

For PowerPC the entry point used to be non-deterministic, but was 
generally 0x40004 which is where the wiki value came from.  The 
following 2 patches made the entry point consistently 0x40000:

http://git.denx.de/cgi-bin/gitweb.cgi?p=u-boot.git;a=commit;h=620bbba524fbaa26971a5004793010b169824f1b

http://git.denx.de/cgi-bin/gitweb.cgi?p=u-boot.git;a=commit;h=c91d456c055237bdadb99a80e198748b8cf32595

I updated the wiki to match the newer 0x40000 address, which is valid 
for PowerPC boards with a comment to check out 
CONFIG_STANDALONE_LOAD_ADDR for other architectures.

Peter

  reply	other threads:[~2015-01-16 17:08 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-16 11:19 [U-Boot] Standalone API examples on the P4080DS David George
2015-01-16 17:08 ` Peter Tyser [this message]
2015-01-20 14:54   ` David George

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