linux-kernel - [PATCH v4 07/21] ARM: dts: imx7-colibri: fix 1.8V/UHS support

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Message-ID: <20190812142105.1995-8-philippe.schenker@toradex.com>
Date:   Mon, 12 Aug 2019 14:21:25 +0000
From:   Philippe Schenker <philippe.schenker@...adex.com>
To:     Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Max Krummenacher <max.krummenacher@...adex.com>,
        "stefan@...er.ch" <stefan@...er.ch>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Michal Vokáč <michal.vokac@...ft.com>,
        Fabio Estevam <festevam@...il.com>
CC:     Stefan Agner <stefan.agner@...adex.com>,
        Philippe Schenker <philippe.schenker@...adex.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        Sascha Hauer <s.hauer@...gutronix.de>
Subject: [PATCH v4 07/21] ARM: dts: imx7-colibri: fix 1.8V/UHS support

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

Add pinmuxing and do not specify voltage restrictions for the usdhc
instance available on the modules edge connector. This allows to use
SD-cards with higher transfer modes if supported by the carrier board.

Signed-off-by: Stefan Agner <stefan.agner@...adex.com>
Signed-off-by: Philippe Schenker <philippe.schenker@...adex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>

---

Changes in v4:
- Add Marcel Ziswiler's Ack

Changes in v3:
- Add new commit message from Stefan's proposal on ML

Changes in v2: None

 arch/arm/boot/dts/imx7-colibri.dtsi | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi b/arch/arm/boot/dts/imx7-colibri.dtsi
index 5347ed38acb2..c563bb821b5e 100644
--- a/arch/arm/boot/dts/imx7-colibri.dtsi
+++ b/arch/arm/boot/dts/imx7-colibri.dtsi
@@ -326,7 +326,6 @@
 &usdhc1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usdhc1 &pinctrl_cd_usdhc1>;
-	no-1-8-v;
 	cd-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
 	disable-wp;
 	vqmmc-supply = <&reg_LDO2>;
@@ -671,6 +670,28 @@
 		>;
 	};
 
+	pinctrl_usdhc1_100mhz: usdhc1grp_100mhz {
+		fsl,pins = <
+			MX7D_PAD_SD1_CMD__SD1_CMD	0x5a
+			MX7D_PAD_SD1_CLK__SD1_CLK	0x1a
+			MX7D_PAD_SD1_DATA0__SD1_DATA0	0x5a
+			MX7D_PAD_SD1_DATA1__SD1_DATA1	0x5a
+			MX7D_PAD_SD1_DATA2__SD1_DATA2	0x5a
+			MX7D_PAD_SD1_DATA3__SD1_DATA3	0x5a
+		>;
+	};
+
+	pinctrl_usdhc1_200mhz: usdhc1grp_200mhz {
+		fsl,pins = <
+			MX7D_PAD_SD1_CMD__SD1_CMD	0x5b
+			MX7D_PAD_SD1_CLK__SD1_CLK	0x1b
+			MX7D_PAD_SD1_DATA0__SD1_DATA0	0x5b
+			MX7D_PAD_SD1_DATA1__SD1_DATA1	0x5b
+			MX7D_PAD_SD1_DATA2__SD1_DATA2	0x5b
+			MX7D_PAD_SD1_DATA3__SD1_DATA3	0x5b
+		>;
+	};
+
 	pinctrl_usdhc3: usdhc3grp {
 		fsl,pins = <
 			MX7D_PAD_SD3_CMD__SD3_CMD		0x59
-- 
2.22.0