Date: Mon, 18 Feb 2013 10:57:28 -0800 From: Oleksandr Tymoshenko <gonzo@bluezbox.com> To: Brett Wynkoop <wynkoop@wynn.com> Cc: freebsd-arm@freebsd.org Subject: Re: failed mount root on pi Message-ID: <51227998.2030401@bluezbox.com> In-Reply-To: <20130218112127.326bda1e@ivory.wynn.com> References: <20130218112127.326bda1e@ivory.wynn.com>
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On 2/18/2013 8:21 AM, Brett Wynkoop wrote: > Greeting- > > I built a new kernel from head as of yesterday. The new kernel boots > fine, but it can not seem to mount root. > > I am wondering if anyone else is having the same issue and what may > have changed to make it impossible for the Pi to mount the SD card. > There was a problem with SDHCI driver: card capabilities read from the card were incomplete. Usually it was 1-bit bus instead of 4-bit bus or no high speed timing for cards that support high speed timing. It worked although not at maximum performance. With this problem gone new bug revealed - some cards stop responding when SDHCI is switched to high speed timing mode. Me and Ian looking into it. Meanwhile try adding following string to /boot/loader.rc on UFS partition: set hw.bcm2835.sdhci.hs=0
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