linux-kernel - [PATCH] dts64: mt7622: fix slow sd card access

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Message-Id: <20210109190937.42409-1-linux@fw-web.de>
Date:   Sat,  9 Jan 2021 20:09:37 +0100
From:   Frank Wunderlich <linux@...web.de>
To:     linux-mediatek@...ts.infradead.org
Cc:     Frank Wunderlich <frank-w@...lic-files.de>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Jimin Wang <jimin.wang@...iatek.com>,
        Ryder Lee <ryder.lee@...iatek.com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        sin_wenjiehu <sin_wenjiehu@...iatek.com>, Wenbin.Mei@...iatek.com
Subject: [PATCH] dts64: mt7622: fix slow sd card access

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

- change sdcard (mmc1) to uhs by change vqmmc-supply to 1V8 because driver
  maps pinctrl depending on this
- add reset-control for mmc1 like it's done for mmc0/emmc

Fixes: 2c002a3049f7 ("arm64: dts: mt7622: add mmc related device nodes")
Fixes: 0b6286dd96c0 ("arm64: dts: mt7622: add bananapi BPI-R64 board")
Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
---
 arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts | 3 ++-
 arch/arm64/boot/dts/mediatek/mt7622.dtsi                 | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
index 2f77dc40b9b8..916ca89ab8eb 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
@@ -232,10 +232,11 @@ &mmc1 {
 	bus-width = <4>;
 	max-frequency = <50000000>;
 	cap-sd-highspeed;
+	mmc-hs200-1_8v;
 	r_smpl = <1>;
 	cd-gpios = <&pio 81 GPIO_ACTIVE_LOW>;
 	vmmc-supply = <&reg_3p3v>;
-	vqmmc-supply = <&reg_3p3v>;
+	vqmmc-supply = <&reg_1p8v>;
 	assigned-clocks = <&topckgen CLK_TOP_MSDC30_1_SEL>;
 	assigned-clock-parents = <&topckgen CLK_TOP_UNIV48M>;
 };
diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
index 5b9ec032ce8d..7c6d871538a6 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
@@ -698,6 +698,8 @@ mmc1: mmc@...40000 {
 		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";
 	};
 
-- 
2.25.1