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From: Philippe Schenker <dev@pschenker.ch>
To: marcel.ziswiler@toradex.com, max.krummenacher@toradex.com,
	stefan@agner.ch, devicetree@vger.kernel.org,
	Rob Herring <robh+dt@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>
Cc: Stefan Agner <stefan.agner@toradex.com>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	linux-kernel@vger.kernel.org,
	Philippe Schenker <philippe.schenker@toradex.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 02/22] ARM: dts: imx7-colibri: disable HS400
Date: Tue, 30 Jul 2019 16:46:29 +0200	[thread overview]
Message-ID: <20190730144649.19022-3-dev@pschenker.ch> (raw)
In-Reply-To: <20190730144649.19022-1-dev@pschenker.ch>

From: Stefan Agner <stefan.agner@toradex.com>

Force HS200 by masking bit 63 of the SDHCI capability register.
The i.MX ESDHC driver uses SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400. With
that the stack checks bit 63 to descide whether HS400 is available.
Using sdhci-caps-mask allows to mask bit 63. The stack then selects
HS200 as operating mode.

This prevents rare communication errors with minimal effect on
performance:
	sdhci-esdhc-imx 30b60000.usdhc: warning! HS400 strobe DLL
		status REF not lock!

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
---

 arch/arm/boot/dts/imx7-colibri.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi b/arch/arm/boot/dts/imx7-colibri.dtsi
index f1c1971f2160..f7c9ce5bed47 100644
--- a/arch/arm/boot/dts/imx7-colibri.dtsi
+++ b/arch/arm/boot/dts/imx7-colibri.dtsi
@@ -325,6 +325,7 @@
 	vmmc-supply = <&reg_module_3v3>;
 	vqmmc-supply = <&reg_DCDC3>;
 	non-removable;
+	sdhci-caps-mask = <0x80000000 0x0>;
 };
 
 &iomuxc {
-- 
2.22.0

  parent reply	other threads:[~2019-07-30 14:46 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-30 14:46 [PATCH 00/22] This patchset holds some common changes that were never upstreamed Philippe Schenker
2019-07-30 14:46 ` [PATCH 01/22] ARM: dts: imx7-colibri: make sure module supplies are always on Philippe Schenker
2019-07-30 14:46 ` Philippe Schenker [this message]
2019-07-30 14:46 ` [PATCH 03/22] ARM: dts: imx7-colibri: prepare module device tree for FlexCAN Philippe Schenker
2019-07-30 14:46 ` [PATCH 04/22] ARM: dts: imx7-colibri: Add sleep mode to ethernet Philippe Schenker
2019-07-30 14:46 ` [PATCH 05/22] ARM: dts: add recovery for I2C for iMX7 Philippe Schenker
2019-07-30 14:46 ` [PATCH 06/22] ARM: dts: imx7-colibri: add GPIO wakeup key Philippe Schenker
2019-07-30 14:46 ` [PATCH 07/22] ARM: dts: imx7-colibri: fix 1.8V/UHS support Philippe Schenker
2019-07-30 14:46 ` [PATCH 08/22] ARM: dts: imx7-colibri: Add touch controllers Philippe Schenker
2019-07-30 14:46 ` [PATCH 09/22] ARM: dts: imx6qdl-colibri: add phy to fec Philippe Schenker
2019-07-30 14:46 ` [PATCH 10/22] ARM: dts: imx6qdl-colibri: Add missing pin declaration in iomuxc Philippe Schenker
2019-07-30 14:46 ` [PATCH 11/22] ARM: dts: imx6: Add sleep state to can interfaces Philippe Schenker
2019-07-31  7:14   ` Michal Vokáč
2019-07-31 11:13     ` Philippe Schenker
2019-07-30 14:46 ` [PATCH 12/22] ARM: dts: imx6: Add touchscreens used on Toradex eval boards Philippe Schenker
2019-07-30 20:46   ` Fabio Estevam
2019-07-31  6:43     ` Philippe Schenker
2019-07-31  6:54       ` Michal Vokáč
2019-07-30 14:46 ` [PATCH 13/22] ARM: dts: colibri-imx6: Add missing pinmuxing to Toradex eval board Philippe Schenker
2019-07-31  7:09   ` Michal Vokáč
2019-07-30 14:46 ` [PATCH 14/22] ARM: dts: apalis-imx6: Add some example I2C devices Philippe Schenker
2019-07-30 20:53   ` Fabio Estevam
2019-07-31 11:36     ` Philippe Schenker
2019-07-30 14:46 ` [PATCH 15/22] ARM: dts: apalis-imx6: Add some optional " Philippe Schenker
2019-07-30 20:43   ` Fabio Estevam
2019-07-31 11:37     ` Philippe Schenker
2019-07-30 14:46 ` [PATCH 16/22] ARM: dts: imx6ull-colibri: Add sleep mode to fec Philippe Schenker
2019-07-30 14:46 ` [PATCH 17/22] ARM: dts: imx6ull-colibri: reduce v_batt current in power off Philippe Schenker
2019-07-30 14:46 ` [PATCH 18/22] ARM: dts: imx6ull-colibri: Add watchdog Philippe Schenker
2019-07-30 14:46 ` [PATCH 19/22] ARM: dts: imx6ull: improve can templates Philippe Schenker
2019-07-30 14:46 ` [PATCH 20/22] ARM: dts: imx6ull-colibri: Add general wakeup key used on Colibri Philippe Schenker
2019-07-30 14:46 ` [PATCH 21/22] ARM: dts: imx6/7-colibri: switch dr_mode to otg Philippe Schenker
2019-07-30 14:46 ` [PATCH 22/22] ARM: dts: imx6ull-colibri: Add touchscreens used with Eval Board Philippe Schenker

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