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h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=rAdXpzYDIpOOkIOzMHf22hymEY6OK3i2IJz3WTzXZCKvSyGamanePwEfb7yuv5gMU pHcVuDSaJ5V1eqMwYkZ46KpSggSa41W/mQFPDLTz7gbeELKxk0ofXo+bxDfp9KBoEk zOOgH3I9r3qLN8fzZ0bjEbnIEvBL8SKr23TVN/KSPxjSNkHwpaxbEoqvbrfFTD6N28 jRgjWBodlX3teHis5HikVRvl4TMuOhQR/N5ghCUyyKqH5P4xS1B3FFzKammbgSQ1jo MDwNeeGW/+SiVJcUx52HgmoilWN6g+fSUTQfhW6HNDuqVxgV8RG9z6AwKkdvh/B+5O GX0m/a8l0STjw== Date: Tue, 5 Oct 2021 14:45:56 +0800 From: Shawn Guo To: Frieder Schrempf Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Rob Herring , Sascha Hauer , Frieder Schrempf , Fabio Estevam , Krzysztof Kozlowski , NXP Linux Team , Pengutronix Kernel Team Subject: Re: [PATCH 1/8] arm64: dts: imx8mm-kontron: Add support for ultra high speed modes on SD card Message-ID: <20211005064556.GX20743@dragon> References: <20210930155633.2745201-1-frieder@fris.de> <20210930155633.2745201-2-frieder@fris.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210930155633.2745201-2-frieder@fris.de> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211004_234603_198663_5506FB40 X-CRM114-Status: GOOD ( 19.17 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Sep 30, 2021 at 05:56:24PM +0200, Frieder Schrempf wrote: > From: Frieder Schrempf > > In order to use ultra high speed modes (UHS) on the SD card slot, we > add matching pinctrls and fix the voltage switching for LDO5 of the > PMIC, by providing the SD_VSEL pin as GPIO to the PMIC driver. > > Signed-off-by: Frieder Schrempf > --- > .../dts/freescale/imx8mm-kontron-n801x-s.dts | 28 ++++++++++++++++++- > .../freescale/imx8mm-kontron-n801x-som.dtsi | 2 ++ > 2 files changed, 29 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts > index d17abb515835..62ba3bd08a0c 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts > +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts > @@ -189,8 +189,10 @@ usbnet: usbether@1 { > }; > > &usdhc2 { > - pinctrl-names = "default"; > + pinctrl-names = "default", "state_100mhz", "state_200mhz"; > pinctrl-0 = <&pinctrl_usdhc2>; > + pinctrl-1 = <&pinctrl_usdhc2_100mhz>; > + pinctrl-2 = <&pinctrl_usdhc2_200mhz>; > vmmc-supply = <®_vdd_3v3>; > vqmmc-supply = <®_nvcc_sd>; > cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>; > @@ -319,4 +321,28 @@ MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d0 > MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x019 > >; > }; > + > + pinctrl_usdhc2_100mhz: usdhc2grp100mhz { Did you run dtbs_check on it? Shawn > + fsl,pins = < > + MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x194 > + MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d4 > + MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d4 > + MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d4 > + MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d4 > + MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d4 > + MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x019 > + >; > + }; > + > + pinctrl_usdhc2_200mhz: usdhc2grp200mhz { > + fsl,pins = < > + MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x196 > + MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d6 > + MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d6 > + MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d6 > + MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d6 > + MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d6 > + MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x019 > + >; > + }; > }; > diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi > index d0456daefda8..03b3516abd64 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi > +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi > @@ -86,6 +86,7 @@ pca9450: pmic@25 { > pinctrl-0 = <&pinctrl_pmic>; > interrupt-parent = <&gpio1>; > interrupts = <0 IRQ_TYPE_LEVEL_LOW>; > + sd-vsel-gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>; > > regulators { > reg_vdd_soc: BUCK1 { > @@ -225,6 +226,7 @@ MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA 0x400001c3 > pinctrl_pmic: pmicgrp { > fsl,pins = < > MX8MM_IOMUXC_GPIO1_IO00_GPIO1_IO0 0x141 > + MX8MM_IOMUXC_GPIO1_IO04_GPIO1_IO4 0x141 > >; > }; > > -- > 2.33.0 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel