Commit 53a8ccf1 authored by Manivannan Sadhasivam's avatar Manivannan Sadhasivam Committed by Bjorn Andersson
Browse files

arm64: dts: qcom: rb5: Add support for uSD card 



Add support for uSD card on RB5 using the SDHC2 interface.

Signed-off-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
[DB: disabled 1.8V support to get SDHC to work]
Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201028190955.1264526-2-dmitry.baryshkov@linaro.org


Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent c4cf0300

arch/arm64/boot/dts/qcom/qrb5165-rb5.dts

+41 −0
Original line number Original line Diff line number Diff line
@@ -18,6 +18,7 @@ 




	aliases {

	aliases {

		serial0 = &uart12;

		serial0 = &uart12;

		sdhc2 = &sdhc_2;

	};

	};





	chosen {

	chosen {
@@ -475,6 +476,20 @@ 
	status = "okay";

	status = "okay";

};

};





&sdhc_2 {

	status = "okay";

	pinctrl-names = "default";

	pinctrl-0 = <&sdc2_default_state &sdc2_card_det_n>;

	vmmc-supply = <&vreg_l9c_2p96>;

	vqmmc-supply = <&vreg_l6c_2p96>;

	cd-gpios = <&tlmm 77 GPIO_ACTIVE_LOW>;

	bus-width = <4>;

	/* there seem to be issues with HS400-1.8V mode, so disable it */

	no-1-8-v;

	no-sdio;

	no-emmc;

};



/* CAN */

/* CAN */

&spi0 {

&spi0 {

	status = "okay";

	status = "okay";
@@ -663,6 +678,32 @@ 
		"HST_BLE_SNS_UART_RX",

		"HST_BLE_SNS_UART_RX",

		"HST_WLAN_UART_TX",

		"HST_WLAN_UART_TX",

		"HST_WLAN_UART_RX";

		"HST_WLAN_UART_RX";



	sdc2_default_state: sdc2-default {

		clk {

			pins = "sdc2_clk";

			bias-disable;

			drive-strength = <16>;

		};



		cmd {

			pins = "sdc2_cmd";

			bias-pull-up;

			drive-strength = <16>;

		};



		data {

			pins = "sdc2_data";

			bias-pull-up;

			drive-strength = <16>;

		};

	};



	sdc2_card_det_n: sd-card-det-n {

		pins = "gpio77";

		function = "gpio";

		bias-pull-up;

	};

};

};





&uart12 {

&uart12 {