Date: Wed, 21 May 2014 15:38:00 -0600 From: Ian Lepore <ian@FreeBSD.org> To: SAITOU Toshihide <toshi@ruby.ocn.ne.jp> Cc: freebsd-arm@FreeBSD.org Subject: Re: BBB MMC / SD detection instability with U-Boot 2014.04 (CPU 1GHz) Message-ID: <1400708280.1152.199.camel@revolution.hippie.lan> In-Reply-To: <20140520.234245.38709064.toshi@ruby.ocn.ne.jp> References: <20140520.191001.03109216.toshi@ruby.ocn.ne.jp> <20140520.212003.232778263.toshi@ruby.ocn.ne.jp> <537B62D1.4090901@hot.ee> <20140520.234245.38709064.toshi@ruby.ocn.ne.jp>
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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" -- Ian
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