From mboxrd@z Thu Jan 1 00:00:00 1970 From: khilman@baylibre.com (Kevin Hilman) Date: Wed, 07 Mar 2018 17:24:43 -0800 Subject: [PATCH] ARM64: dts: meson: reduce odroid-c2 eMMC maximum rate In-Reply-To: <20180302134436.18844-1-jbrunet@baylibre.com> (Jerome Brunet's message of "Fri, 2 Mar 2018 14:44:36 +0100") References: <20180302134436.18844-1-jbrunet@baylibre.com> Message-ID: <7hy3j3fjfo.fsf@baylibre.com> To: linus-amlogic@lists.infradead.org List-Id: linus-amlogic.lists.infradead.org Jerome Brunet writes: > Different modules maybe installed by the user on the eMMC connector > of the odroid-c2. While the red modules are working without an issue, > it seems some black modules (apparently Samsung based) are having > issue at 200MHz > > While the tuning algorithm introduced in v4.14 enables high speed modes > on every other tested designs, it seems a problem remains for this > particular combination of board and eMMC module. > > Lowering the maximum frequency of the eMMC on this board until we can > figure out a better solution. > > Fixes: d341ca88eead ("mmc: meson-gx: rework tuning function") > Suggested-by: Ellie Reeves > Signed-off-by: Jerome Brunet Applied to v4.17/dt64 and Cc'd to stable, Kevin