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Date:      Wed, 30 Apr 2014 09:24:49 -0600
From:      Warner Losh <imp@bsdimp.com>
To:        Thomas Skibo <ThomasSkibo@sbcglobal.net>
Cc:        freebsd-arm <freebsd-arm@FreeBSD.org>, Ian Lepore <ian@FreeBSD.org>
Subject:   Re: sdhci_fdt ignores clock-frequency property in .dtb
Message-ID:  <D4FC3928-BDC8-4E0E-9631-E1C23521F711@bsdimp.com>
In-Reply-To: <53610CB6.6000003@sbcglobal.net>
References:  <53601B1D.2090702@sbcglobal.net> <1398816332.22079.49.camel@revolution.hippie.lan> <53610CB6.6000003@sbcglobal.net>

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h=
ttp://svnweb.freebsd.org/base/vendor/device-tree/dist/Bindings/mmc/mmc.txt=
?revision=3D262573&view=3Dmarkup

has the standard which we try to follow (but sometimes fall short) on. =
There=92s several properties we currently ignore, but perhaps shouldn=92t.=


Warner


On Apr 30, 2014, at 8:46 AM, Thomas Skibo <ThomasSkibo@sbcglobal.net> =
wrote:

>=20
> It looks like one other platform uses sdhci_fdt: exynos5250 =
(Chromebook).  See exynos5250.dtsi.  The "/* TODO: verify freq */" =
comment leads me to think they noticed that property wasn't working.
>=20
> I'm okay with max-frequency.  I can generate a new patch.
>=20
> On 4/29/14, 5:05 PM, Ian Lepore wrote:
>> On Tue, 2014-04-29 at 14:35 -0700, Thomas Skibo wrote:
>>> Another Zynq bug-fix.  One Zynq board out there needs to set this
>>> property or else the SD card gets clocked too fast.
>>>=20
>>> Thanks,
>>>=20
>>=20
>> The documented property for this is max-frequency rather than
>> clock-frequency.  Is this a completely new property for us, or are =
you
>> just making the code honor what's in our existing dts files?  Either =
way
>> we should use the documented name, I'm just wondering if we need to =
fix
>> dts files and give folks a heads-up about the change.
>>=20
>> -- Ian
>>=20
>>=20
>>=20
>=20
> --=20
> --------
> Thomas Skibo
> ThomasSkibo@sbcglobal.net
>=20
> _______________________________________________
> freebsd-arm@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-arm
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