Date: Thu, 22 May 2014 23:14:04 +0900 (JST) From: SAITOU Toshihide <toshi@ruby.ocn.ne.jp> To: ian@FreeBSD.org Cc: freebsd-arm@FreeBSD.org Subject: Re: BBB MMC / SD detection instability with U-Boot 2014.04 (CPU 1GHz) Message-ID: <20140522.231404.174358702.toshi@ruby.ocn.ne.jp> In-Reply-To: <1400764684.1152.218.camel@revolution.hippie.lan> References: <1400708280.1152.199.camel@revolution.hippie.lan> <20140522.203923.240655619.toshi@ruby.ocn.ne.jp> <1400764684.1152.218.camel@revolution.hippie.lan>
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In message: <1400764684.1152.218.camel@revolution.hippie.lan>
Ian Lepore <ian@FreeBSD.org> writes:
> On Thu, 2014-05-22 at 20:39 +0900, SAITOU Toshihide wrote:
>> In message: <1400708280.1152.199.camel@revolution.hippie.lan>
>> Ian Lepore <ian@FreeBSD.org> writes:
>> > On Tue, 2014-05-20 at 23:42 +0900, SAITOU Toshihide wrote:
>> >> In message: <537B62D1.4090901@hot.ee>
>> >> "Sulev-Madis Silber (ketas)" <madis555@hot.ee> writes:
>> >> > On 2014-05-20 15:20, SAITOU Toshihide wrote:
>> >> >> In message: <20140520.191001.03109216.toshi@ruby.ocn.ne.jp>
>> >> >> SAITOU Toshihide <toshi@ruby.ocn.ne.jp> writes:
>> >> >>> In message: <537ACDB2.9080808@hot.ee>
>> >> >>> "Sulev-Madis Silber (ketas)" <madis555@hot.ee> writes:
>> >> >>>>
>> >> >>>> Actually I guess many people might think like me... "HELL, optimizing
>> >> >>>> boot time of 1min?! I have more important tasks to do than this".
>> >> >>>
>> >> >>> If you have ``device sdhci'' line in conf/BEAGLEBONE, is there any
>> >> >>> differences by changing mmchs to sdhci in am335x.dtsi and
>> >> >>> beaglebone-black.dts? And also remove ``status = "disabled"''
>> >> >
>> >> > Don't edit am335x.dtsi
>> >> >
>> >> > And beaglebone-black.dts already has proper config.
>> >>
>> >> In this case, how does ``device sdhci'' driver know the register address?
>> >> I thought that there is an inconsistency in BEAGLEBONE config and
>> >> dts file for the SD/MMC driver.
>> >
>> > The name@address tag in the dts[i] files doesn't have to match the
>> > driver name in the kernel config. What matters for matching the driver
>> > to the right entry in the dts is the "compatible=" property. The
>> > ti_sdhci driver looks for an entry with any one of these compatible
>> > strings:
>> >
>> > "ti,omap3-hsmmc", "ti,omap4-hsmmc", "ti,mmchs"
>>
>> Ah! I see ti_sdhci.c has ofw_bus_is_compatible(dev, "ti,mmchs").
>> (Why I felt difference of eMMC detection... Hmm...)
>
> What version of source code are you using to see that? You should be
> seeing a ofw_bus_search_compatible() call using a table of compatible
> strings that has those entries I listed.
FreeBSD 11.0-CURRENT #41 r265876:266494M: Thu May 22 08:18:49 JST 2014
but ti_sdhci.c is 254559 I am suprised. I will try at the weekend.
--
SAITOU Toshihide
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