From 53a8ccf1c7e5c901342f7dcf43bb7ddb6027984b Mon Sep 17 00:00:00 2001 From: Manivannan Sadhasivam Date: Wed, 28 Oct 2020 22:09:55 +0300 Subject: [PATCH] arm64: dts: qcom: rb5: Add support for uSD card Add support for uSD card on RB5 using the SDHC2 interface. Signed-off-by: Manivannan Sadhasivam [DB: disabled 1.8V support to get SDHC to work] Signed-off-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20201028190955.1264526-2-dmitry.baryshkov@linaro.org Signed-off-by: Bjorn Andersson --- arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 41 ++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts index fec31655141c..bc8d63a59598 100644 --- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts +++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts @@ -18,6 +18,7 @@ aliases { serial0 = &uart12; + sdhc2 = &sdhc_2; }; chosen { @@ -475,6 +476,20 @@ 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 */ &spi0 { status = "okay"; @@ -663,6 +678,32 @@ "HST_BLE_SNS_UART_RX", "HST_WLAN_UART_TX", "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 { -- 2.34.1