From:   Philippe Schenker <dev@pschenker.ch>
To:     devicetree@vger.kernel.org, Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>
Cc:     NXP Linux Team <linux-imx@nxp.com>,
        Frank Rowand <frowand.list@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Fabio Estevam <festevam@gmail.com>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        linux-arm-kernel@lists.infradead.org,
        Philippe Schenker <philippe.schenker@toradex.com>,
        linux-kernel@vger.kernel.org
Subject: [PATCH v2 16/23] arm64: dts: colibri-imx8x: Add no-1-8-v to sd-card
Date:   Tue, 14 Mar 2023 11:24:02 +0100
Message-Id: <20230314102410.424773-17-dev@pschenker.ch>
In-Reply-To: <20230314102410.424773-1-dev@pschenker.ch>
References: <20230314102410.424773-1-dev@pschenker.ch>
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From: Philippe Schenker <philippe.schenker@toradex.com>

Many Colibri carrier boards are using 3.3V pull-up resistors on the
SD-Card connector. Letting it switch to 1.8V is an invalid state.

Do prevent this from happening by keeping the signaling voltage at 3.3V.

Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
---

(no changes since v1)

 arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi b/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
index 61033b79e44e..2e228c5b8109 100644
--- a/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
@@ -304,6 +304,7 @@ &usdhc2 {
 	pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
 	pinctrl-3 = <&pinctrl_usdhc2_sleep>, <&pinctrl_usdhc2_gpio_sleep>;
 	disable-wp;
+	no-1-8-v;
 };
 
 &iomuxc {
-- 
2.39.2