linux-kernel - [PATCH 4.19 208/247] dts64: mt7622: fix slow sd card access

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Message-Id: <20210301161041.854833045@linuxfoundation.org>
Date:   Mon,  1 Mar 2021 17:13:48 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Frank Wunderlich <frank-w@...lic-files.de>,
        Matthias Brugger <matthias.bgg@...il.com>
Subject: [PATCH 4.19 208/247] dts64: mt7622: fix slow sd card access

From: Frank Wunderlich <frank-w@...lic-files.de>

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@...lic-files.de>
Cc: stable@...r.kernel.org
Link: https://lore.kernel.org/r/20210113180919.49523-1-linux@fw-web.de
Signed-off-by: Matthias Brugger <matthias.bgg@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 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
@@ -641,6 +641,8 @@
 		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";
 	};