From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Ryser <Peter.Ryser@xilinx.com>
Date: Tue, 16 Mar 2004 18:02:16 -0800
Subject: [U-Boot-Users] v2p4 porting troubles
In-Reply-To: <009b01c40baa$a324f2b0$cb01a8c0@xiphos.ca>
References: <20040316203653.2844CC0655@atlas.denx.de>
 <009b01c40baa$a324f2b0$cb01a8c0@xiphos.ca>
Message-ID: <4057B1A8.9040308@xilinx.com>
List-Id: <u-boot.lists.denx.de>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: u-boot@lists.denx.de

Joshua,

>The code from Xilinx is as follows...
>
>void XIo_Out32(XIo_Address OutAddress, Xuint32 Value)
>{
>   __asm__ volatile ("stw %0,0(%1); eieio" : : "r" (Value), "r"
>(OutAddress));
>}
>

Yes, this code is broken. You can use the work-around as pointed out by 
Wolfgang or you can use the xio.h that is part of u-boot and the Linux 
kernel.
In u-boot you can find it at board/xilinx/common/xio.h
In Linux you can find it at arch/ppc/platforms/xilinx_ocp/xio.h

I will make sure this piece of code gets fixed in EDK.

- Peter