From mboxrd@z Thu Jan  1 00:00:00 1970
From: Reinhard Meyer <u-boot@emk-elektronik.de>
Date: Thu, 04 Nov 2010 11:59:43 +0100
Subject: [U-Boot] [PATCH] powerpc: do not fixup NULL ptrs
In-Reply-To: <OFDED6C729.BCEDB877-ONC12577D1.0038E8E5-C12577D1.003B48BC@transmode.se>
References: <1287049904-18917-1-git-send-email-Joakim.Tjernlund@transmode.se>	<20101018203948.676071359B3@gemini.denx.de>	<1702240919.111.1287950899754.JavaMail.open-xchange@proteus>	<20101024201832.DAF78134F26@gemini.denx.de>	<739387466.116.1287952424329.JavaMail.open-xchange@proteus>	<OF8619EB98.C3A2013E-ONC12577C6.0071F075-C12577C6.00724792@transmode.se>	<4CC58B1B.8040005@matrix-vision.de>	<OF5324EC0A.37C044B2-ONC12577D1.0031F002-C12577D1.00326E3D@transmode.se>	<20101104095742.5C4AC12A81E3@gemini.denx.de>
	<OFDED6C729.BCEDB877-ONC12577D1.0038E8E5-C12577D1.003B48BC@transmode.se>
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Dear Joakim Tjernlund schrieb:
> no, the nops has to be directly after _start:
> 	. = EXC_OFF_SYS_RESET
> 
> 	.globl	_start
> _start: /* time t 0 */
> 	nop
> 	nop
> 	nop
> 	nop
> 
> My theory is that e300c2(no FPU) CPUs configured for low
> boot vector, 0x100, really uses 0x110 instead.


How about a simple test:

_start:
	bra	case1
	org	_start+0x10
	bra	case2
...
case1:	"turn on red led"
	bra	case1

case2:	"turn on green led"
	bra	case2


You get the idea :)

Best Regards
Reinhard