From: Hollis Blanchard <hollisb@us.ibm.com>
To: John Linn <John.Linn@xilinx.com>
Cc: Tirumala Reddy Marri <tmarri@amcc.com>, linuxppc-dev@ozlabs.org
Subject: Re: Question about DBCR0 initialization for 440
Date: Fri, 17 Apr 2009 15:50:18 -0500 [thread overview]
Message-ID: <200904171550.19625.hollisb@us.ibm.com> (raw)
In-Reply-To: <20090417203053.1D692F88052@mail119-dub.bigfish.com>
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)
> /*
> * The Abatron BDI JTAG debugger does not tolerate others
> * mucking with the debug registers.
> */
> lis r2,DBCR0_IDM@h
> mtspr SPRN_DBCR0,r2
> isync
> /* clear any residual debug events */
> li r2,-1
> mtspr SPRN_DBSR,r2
> #endif
So change the code to OR in your bits. What's the problem?
--
Hollis Blanchard
IBM Linux Technology Center
next prev parent reply other threads:[~2009-04-17 20:50 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-14 20:33 Question about DBCR0 initialization for 440 John Linn
2009-04-15 16:24 ` Tirumala Reddy Marri
2009-04-17 15:46 ` John Linn
2009-04-17 17:22 ` Josh Boyer
2009-04-17 18:07 ` Hollis Blanchard
2009-04-17 19:04 ` Benjamin Herrenschmidt
2009-04-17 19:10 ` Grant Likely
2009-04-17 20:30 ` John Linn
2009-04-17 20:35 ` Josh Boyer
2009-04-17 20:41 ` John Linn
2009-04-17 20:54 ` Josh Boyer
2009-04-17 20:50 ` Hollis Blanchard [this message]
2009-04-17 20:57 ` John Linn
2009-04-17 18:57 ` Grant Likely
2009-04-17 18:58 ` John Linn
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