:24 AM
To: John Linn; jwbo...@linux.vnet.ibm.com; grant.lik...@secretlab.ca;
linuxppc-dev@ozlabs.org
Subject: RE: Question about DBCR0 initialization for 440
Some debuggers like BDI(Abatron) they setup the debug registers. If you
have different debugger which doesn't support configuring debug
On Fri, Apr 17, 2009 at 11:46 AM, John Linn john.l...@xilinx.com wrote:
Josh, any thoughts on putting this into head_44x.S?
The code in the fsl file looks like the right solution. I do have an
odd question though, in that it's hard for the
kernel to really know if something like a BDI is
On Friday 17 April 2009 12:22:37 Josh Boyer wrote:
On Fri, Apr 17, 2009 at 11:46 AM, John Linn john.l...@xilinx.com wrote:
Josh, any thoughts on putting this into head_44x.S?
The code in the fsl file looks like the right solution. I do have an
odd question though, in that it's hard for the
Hey John
We just discussed this on IRC. Go ahead and generate a patch to
unconditionally turn on DBCR0[IDM] in head_44x.S. Don't even bother
wrapping it in an #ifdef CONFIG_somthing block. It should be safe,
but we'll throw it into -next and see if anyone complains. If it does
cause problems,
On Fri, 2009-04-17 at 13:07 -0500, Hollis Blanchard wrote:
On Friday 17 April 2009 12:22:37 Josh Boyer wrote:
On Fri, Apr 17, 2009 at 11:46 AM, John Linn john.l...@xilinx.com wrote:
Josh, any thoughts on putting this into head_44x.S?
The code in the fsl file looks like the right
On Fri, Apr 17, 2009 at 1:04 PM, Benjamin Herrenschmidt
b...@kernel.crashing.org wrote:
On Fri, 2009-04-17 at 13:07 -0500, Hollis Blanchard wrote:
On Friday 17 April 2009 12:22:37 Josh Boyer wrote:
On Fri, Apr 17, 2009 at 11:46 AM, John Linn john.l...@xilinx.com wrote:
Josh, any thoughts on
Thanks everyone, will do.
-Original Message-
From: Grant Likely [mailto:grant.lik...@secretlab.ca]
Sent: Friday, April 17, 2009 12:58 PM
To: Josh Boyer
Cc: John Linn; Tirumala Reddy Marri; linuxppc-dev@ozlabs.org;
holl...@us.ibm.com
Subject: Re: Question about DBCR0 initialization
-Original Message-
From: Grant Likely [mailto:grant.lik...@secretlab.ca]
Sent: Friday, April 17, 2009 1:10 PM
To: Benjamin Herrenschmidt
Cc: Hollis Blanchard; linuxppc-dev@ozlabs.org; John Linn;
Tirumala Reddy Marri
Subject: Re: Question about DBCR0 initialization for 440
On Fri, Apr 17, 2009 at 02:30:45PM -0600, John Linn wrote:
Might be worth checking if external debug is enabled, and
override it
only if it's not.
ppc440x5_um.pdf says that both can be enabled.
The code that I started the thread with, from the fsl file, has conditional
for the BDI
-Original Message-
From: Josh Boyer [mailto:jwbo...@linux.vnet.ibm.com]
Sent: Friday, April 17, 2009 2:36 PM
To: John Linn
Cc: grant.lik...@secretlab.ca; Benjamin Herrenschmidt;
linuxppc-dev@ozlabs.org; Hollis Blanchard; Tirumala Reddy Marri
Subject: Re: Question about DBCR0
On Friday 17 April 2009 15:30:45 John Linn wrote:
We think that we still need that conditional as the code is not Oring in the
enable such that it would
disable external debug mode for the BDI. But we need it this way for our
Xilinx pod.
#if !defined(CONFIG_BDI_SWITCH)
/*
; Tirumala Reddy Marri
Subject: Re: Question about DBCR0 initialization for 440
On Fri, Apr 17, 2009 at 02:30:45PM -0600, John Linn wrote:
Might be worth checking if external debug is enabled, and
override it
only if it's not.
ppc440x5_um.pdf says that both can be enabled
-Original Message-
From: Hollis Blanchard [mailto:holl...@us.ibm.com]
Sent: Friday, April 17, 2009 2:50 PM
To: John Linn
Cc: grant.lik...@secretlab.ca; Benjamin Herrenschmidt;
linuxppc-dev@ozlabs.org; Tirumala Reddy Marri
Subject: Re: Question about DBCR0 initialization for 440
@ozlabs.org] On Behalf Of
John Linn
Sent: Tuesday, April 14, 2009 1:33 PM
To: jwbo...@linux.vnet.ibm.com; grant.lik...@secretlab.ca;
linuxppc-dev@ozlabs.org
Subject: Question about DBCR0 initialization for 440
The kernel does not initialize the PPC440 DBCR0 register. This prevents
(among
The kernel does not initialize the PPC440 DBCR0 register. This prevents
(among other things) the use of software breakpoints with GDB. I
realize that boot loaders probably do initialize this but we run a lot
without a boot loader and so do our customers.
The file, head_fsl_booke.S, does
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