From owner-freebsd-arm@FreeBSD.ORG  Thu Nov  6 17:12:11 2008
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Date: Thu, 06 Nov 2008 10:10:47 -0700 (MST)
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To: mav@freebsd.org
From: "M. Warner Losh" <imp@bsdimp.com>
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Cc: freebsd-arm@freebsd.org, freebsd-current@freebsd.org, lars.engels@0x20.net,
	freebsd-mobile@freebsd.org
Subject: Re: RFC: PCI SD host controller driver & mmc/mmcsd modules
 improvements
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In message: <49131109.2020601@FreeBSD.org>
            Alexander Motin <mav@FreeBSD.org> writes:
: Lars Engels wrote:
: > 1. How can I tune the PCI configuration? With pciconf -w or so?
: 
: Yes. `pciconf -r -b device addr` to read and `pciconf -w -b device addr
: value` to write.

I have changes that almost make my TI card do it.

: > 2. Unfortunately the sysctl did not change a thing with regard to the
: > Card reader.
: 
: Have you added it to the loader.conf and rebooted?
: 
: > 3. I added the chip ID and the second device is now recognized as a
: > sdhci device but still does not see any card inserted:
: > 
: > Nov  6 16:32:20 NB0117232 kernel: sdhci1: Hardware doesn't specify base
: > clock frequency.
: > Nov  6 16:32:20 NB0117232 kernel: sdhci1: Hardware doesn't specify
: > timeout clock frequency.
: > Nov  6 16:32:20 NB0117232 kernel: sdhci1: Hardware doesn't report any
: > support voltages.
: 
: Looks like it is not enough compatible, or even not compatible.

Chances are good that you need to the workaround to turn on these
things.

Warner