Date: Sat, 13 Jul 2019 20:15:22 -0600 From: Sergey Manucharian <sm@ara-ler.com> To: Denis Polygalov <dpolyg@gmail.com> Cc: Ian Lepore <ian@freebsd.org>, freebsd-arm@freebsd.org Subject: Re: FreeBSD 11.3-RELEASE and 11.2-RELEASE images fail to boot on BeagleBone Black Message-ID: <20190714021522.GL1503@dendrobates> In-Reply-To: <85e35455-793a-84fe-c8cf-39b89ade7c11@gmail.com> References: <8352f841-0522-9f45-148d-d2948e97857e@gmail.com> <20190713152404.GJ1503@dendrobates> <b6876ce7-5147-5f1a-d712-3515e124cd36@gmail.com> <6b3dcec02b425a8559605b4e6c5ada19ee642728.camel@freebsd.org> <20190713194256.GK1503@dendrobates> <85e35455-793a-84fe-c8cf-39b89ade7c11@gmail.com>
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Excerpts from Denis Polygalov's message from Sun 14-Jul-19 10:34: > > Yes, 12.0 works fine. > > just for clarification, - > FreeBSD-12.0-RELEASE-arm-armv7-BEAGLEBONE.img > does *not* work for me (same behavior as 11.3 and 11.2). Right now I have 2 BBBs running FreeBSD-12.0 for months, one of them has a working Newhaven 7" LCD cape (touchpanel doesn't work - there is no driver). I never needed any special tweaking to boot them. There exist a few flavors of BBBs. I testify, that, e.g., black-board industrial temperature BBBs have certain issues compared to red-board ones. Also, I discovered, that certain USB flash drives are not detected by u-boot at boot time because of wrong timing, I had to recompile u-boot to avoid such thing for my particular purpose. I know, it is not related to your case, Denis, just an example. What if you try using a different SD card? I know for sure that SanDisk cards of class 10 perfectly work with all variants of BBBs I have. The default DTB tells the kernel to set the SD card clock speed to 50MHz. It may be too high for certain types. I looked the clock's waveform on the oscilloscope, it doesn't look good, believe me. I'm involved in a commercial project with BBBs running Debian Linux, and to be on the safe side I lowered clock's speed to 25MHz. -S
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