Date: Mon, 11 Nov 2013 17:03:09 +0800 From: Ganbold Tsagaankhuu <ganbold@gmail.com> To: John Wehle <john@feith.com> Cc: "freebsd-arm@freebsd.org" <arm@freebsd.org> Subject: Re: arm/183740: mutex on some arm hardware requires dcache enabled Message-ID: <CAGtf9xMd6%2Brv0e6YuB1_0qs8F6ogv-ZU697jjresF9t_tcxZzQ@mail.gmail.com> In-Reply-To: <201311110631.rAB6VceX027412@jwlab.FEITH.COM> References: <201311110631.rAB6VceX027412@jwlab.FEITH.COM>
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On Mon, Nov 11, 2013 at 2:31 PM, John Wehle <john@feith.com> wrote: > > What kind of Amlogic board you are working on? > > I'm currently using a Visson ATV-102 "Android TV Box" which has an > Amlogic aml8726-m3 SoC. I have it to the point of attempting to > mount the root filesystem so it's probably time for me to write a > driver for the Amlogic MMC hardware. > > I also have a Ainol Elf 2 tablet which has an Amlogic aml8726-mx SoC > which I plan to work on next. > Very cool and since this talk is related to arm I CC-ed freebsd-arm@. > > Both chips are dual core Arm Cortex A9 processors. > > > As for the patch can you try to put it in initarm_late_init() of > > your board machdep code and try? > > Yep ... enabling the dcache in initarm_late_init takes care of the > mutex ldrex / strex problem. > Great. br, Ganbold > > -- John > >
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