From: "Michael Büsch" <mb@bu3sch.de>
To: b43-dev@lists.infradead.org
Subject: Question about SPROM Readout
Date: Sat, 11 Dec 2010 09:47:17 +0100 [thread overview]
Message-ID: <1292057237.20015.2.camel@maggie> (raw)
In-Reply-To: <4D02A466.2030607@lwfinger.net> (sfid-20101210_230619_560696_1D62D066)
On Fri, 2010-12-10 at 16:06 -0600, Larry Finger wrote:
> On the box with the SPROM located at 0x0800 rather than 0x1000, a readout cycle
> dumps data from whatever core happens to be mapped in the region 0x0 - 0xFFF. As
> this is usually not the ChipCommon core, the SPROM dump is usually garbage.
> Similarly, an SPROM write would overwrite lots of things.
No wait. The SPROM is not mapped into the core MMIO. It is mapped right
above it. So a core switch does not affect it.
Core window goes from 0-0x800 (0r 0-0x1000 on PCI-E). Above this, the
SPROM is statically mapped.
--
Greetings Michael.
next prev parent reply other threads:[~2010-12-11 8:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-10 22:06 Question about SPROM Readout Larry Finger
2010-12-11 8:47 ` Michael Büsch [this message]
2010-12-11 17:39 ` Larry Finger
2010-12-11 17:49 ` Michael Büsch
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