[PATCH 5.10 556/663] dts64: mt7622: fix slow sd card access

From: Greg Kroah-Hartman
Date: Mon Mar 01 2021 - 20:41:50 EST


From: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>

commit dc2e76175417e69c41d927dba75a966399f18354 upstream.

Fix extreme slow speed (200MB takes ~20 min) on writing sdcard on
bananapi-r64 by adding reset-control for mmc1 like it's done for mmc0/emmc.

Fixes: 2c002a3049f7 ("arm64: dts: mt7622: add mmc related device nodes")
Signed-off-by: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20210113180919.49523-1-linux@xxxxxxxxx
Signed-off-by: Matthias Brugger <matthias.bgg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/mediatek/mt7622.dtsi | 2 ++
1 file changed, 2 insertions(+)

--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
@@ -698,6 +698,8 @@
clocks = <&pericfg CLK_PERI_MSDC30_1_PD>,
<&topckgen CLK_TOP_AXI_SEL>;
clock-names = "source", "hclk";
+ resets = <&pericfg MT7622_PERI_MSDC1_SW_RST>;
+ reset-names = "hrst";
status = "disabled";
};