44 lines
1.7 KiB
Diff
44 lines
1.7 KiB
Diff
Origin: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts?h=next-20180309&id=c04ffa71ff491220cac28f55237c9aad379a8656
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From c04ffa71ff491220cac28f55237c9aad379a8656 Mon Sep 17 00:00:00 2001
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From: Jerome Brunet <jbrunet@baylibre.com>
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Date: Fri, 2 Mar 2018 14:44:36 +0100
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Subject: [PATCH] ARM64: dts: meson: reduce odroid-c2 eMMC maximum rate
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Different modules maybe installed by the user on the eMMC connector
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of the odroid-c2. While the red modules are working without an issue,
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it seems some black modules (apparently Samsung based) are having
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issue at 200MHz
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While the tuning algorithm introduced in v4.14 enables high speed modes
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on every other tested designs, it seems a problem remains for this
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particular combination of board and eMMC module.
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Lowering the maximum frequency of the eMMC on this board until we can
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figure out a better solution.
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Fixes: d341ca88eead ("mmc: meson-gx: rework tuning function")
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Suggested-by: Ellie Reeves <ellierevves@gmail.com>
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Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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Cc: stable@vger.kernel.org
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Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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---
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arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
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index 0bc0f65e4f37..54954b314a45 100644
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--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
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+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
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@@ -274,7 +274,7 @@
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pinctrl-names = "default", "clk-gate";
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bus-width = <8>;
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- max-frequency = <200000000>;
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+ max-frequency = <100000000>;
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non-removable;
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disable-wp;
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cap-mmc-highspeed;
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--
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2.11.0
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