linux-kernel - [PATCH] arm64: dts: hikey: Revert "Enable HS200 mode on eMMC"

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Message-Id: <1548273966-5889-1-git-send-email-john.stultz@linaro.org>
Date:   Wed, 23 Jan 2019 12:06:06 -0800
From:   John Stultz <john.stultz@...aro.org>
To:     lkml <linux-kernel@...r.kernel.org>
Cc:     Alistair Strachan <astrachan@...gle.com>,
        Ryan Grachek <ryan@...ted.us>, Wei Xu <xuwei5@...ilicon.com>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        "stable #4 . 17+" <stable@...r.kernel.org>,
        John Stultz <john.stultz@...aro.org>
Subject: [PATCH] arm64: dts: hikey: Revert "Enable HS200 mode on eMMC"

From: Alistair Strachan <astrachan@...gle.com>

This reverts commit abd7d0972a192ee653efc7b151a6af69db58f2bb. This
change was already partially reverted by John Stultz in commit
9c6d26df1fae ("arm64: dts: hikey: Fix eMMC corruption regression").

This change appears to cause controller resets and block read failures
which prevents successful booting on some hikey boards.

Cc: Ryan Grachek <ryan@...ted.us>
Cc: Wei Xu <xuwei5@...ilicon.com>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: devicetree@...r.kernel.org
Cc: stable <stable@...r.kernel.org> #4.17+
Signed-off-by: Alistair Strachan <astrachan@...gle.com>
Signed-off-by: John Stultz <john.stultz@...aro.org>
---
 arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
index 6102350..7092460 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
@@ -300,7 +300,6 @@
 
 		dwmmc_0: dwmmc0@...3d000 {
 			cap-mmc-highspeed;
-			mmc-hs200-1_8v;
 			non-removable;
 			bus-width = <0x8>;
 			vmmc-supply = <&ldo19>;
-- 
2.7.4