From mboxrd@z Thu Jan  1 00:00:00 1970
From: David George <dgeorge@rapitasystems.com>
Date: Fri, 16 Jan 2015 11:19:22 +0000
Subject: [U-Boot] Standalone API examples on the P4080DS
Message-ID: <54B8F3BA.3090309@rapitasystems.com>
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To: u-boot@lists.denx.de

Hi all,

I have compiled the hello_world standalone API example documented at 
http://www.denx.de/wiki/view/DULG/UBootStandalone for the Freescale 
P4080DS development board.

For the standalone api example hello_world, the tutorial (linked above) 
states that the entry point of the application *is offset 4 bytes from 
the start of the file* (I.E. address 0x40004).

With all build settings at default, my standalone base address is 
0x40000 (defined in arch/powerpc/config.mk). This produces the following 
object code:

00040000 <hello_world>:
    40000:	94 21 ff e0 	stwu    r1,-32(r1)
    40004:	7c 08 02 a6 	mflr    r0
    40008:	bf 61 00 0c 	stmw    r27,12(r1)
    4000c:	7c 7e 1b 78 	mr      r30,r3
    40010:	7c 83 23 78 	mr      r3,r4
    40014:	90 01 00 24 	stw     r0,36(r1)

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.

Thanks!

Dave George

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