From: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
To: "Rob Herring" <robh+dt@kernel.org>,
"Andreas Färber" <afaerber@suse.de>,
"Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-actions@lists.infradead.org
Subject: [PATCH 09/10] arm: dts: owl-s500-roseapplepi: Add uSD support
Date: Fri, 26 Jun 2020 02:34:21 +0300 [thread overview]
Message-ID: <521e5024f355c006d7abc8fe30d5cae63a9601f1.1593124368.git.cristian.ciocaltea@gmail.com> (raw)
In-Reply-To: <cover.1593124368.git.cristian.ciocaltea@gmail.com>
Add uSD support for RoseapplePi SBC using a fixed regulator as a
temporary solution until PMIC support becomes available.
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
---
arch/arm/boot/dts/owl-s500-roseapplepi.dts | 50 ++++++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/arch/arm/boot/dts/owl-s500-roseapplepi.dts b/arch/arm/boot/dts/owl-s500-roseapplepi.dts
index 800edf5d2d12..0a916b6c83a8 100644
--- a/arch/arm/boot/dts/owl-s500-roseapplepi.dts
+++ b/arch/arm/boot/dts/owl-s500-roseapplepi.dts
@@ -14,6 +14,7 @@ / {
model = "Roseapple Pi";
aliases {
+ mmc0 = &mmc0;
serial2 = &uart2;
};
@@ -25,6 +26,55 @@ memory@0 {
device_type = "memory";
reg = <0x0 0x80000000>; /* 2GB */
};
+
+ /* Fixed regulator used in the absence of PMIC */
+ sd_vcc: sd-vcc {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-3.1V";
+ regulator-min-microvolt = <3100000>;
+ regulator-max-microvolt = <3100000>;
+ regulator-always-on;
+ };
+};
+
+&pinctrl {
+ mmc0_default: mmc0_default {
+ pinmux {
+ groups = "sd0_d0_mfp", "sd0_d1_mfp", "sd0_d2_d3_mfp",
+ "sd0_cmd_mfp", "sd0_clk_mfp";
+ function = "sd0";
+ };
+
+ drv_pinconf {
+ groups = "sd0_d0_d3_drv", "sd0_cmd_drv", "sd0_clk_drv";
+ drive-strength = <8>;
+ };
+
+ bias0_pinconf {
+ pins = "sd0_d0", "sd0_d1", "sd0_d2",
+ "sd0_d3", "sd0_cmd";
+ bias-pull-up;
+ };
+
+ bias1_pinconf {
+ pins = "sd0_clk";
+ bias-pull-down;
+ };
+ };
+};
+
+/* uSD */
+&mmc0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_default>;
+ no-sdio;
+ no-mmc;
+ no-1-8-v;
+ cd-gpios = <&pinctrl 117 GPIO_ACTIVE_LOW>;
+ bus-width = <4>;
+ vmmc-supply = <&sd_vcc>;
+ vqmmc-supply = <&sd_vcc>;
};
&twd_timer {
--
2.27.0
next prev parent reply other threads:[~2020-06-25 23:35 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-25 23:34 [PATCH 00/10] Add CMU/RMU/DMA/MMC/I2C support for Actions Semi S500 SoCs Cristian Ciocaltea
2020-06-25 23:34 ` [PATCH 01/10] arm: dts: owl-s500: Add Clock Management Unit Cristian Ciocaltea
2020-06-25 23:34 ` [PATCH 02/10] arm: dts: owl-s500: Set UART clock refs from CMU Cristian Ciocaltea
2020-06-25 23:34 ` [PATCH 03/10] arm: dts: owl-s500: Add DMA controller Cristian Ciocaltea
2020-06-25 23:34 ` [PATCH 04/10] arm: dts: owl-s500: Add Reset Controller support Cristian Ciocaltea
2020-06-25 23:34 ` [PATCH 05/10] arm: dts: owl-s500: Add pinctrl node Cristian Ciocaltea
2020-06-25 23:34 ` [PATCH 06/10] arm: dts: owl-s500: Add MMC nodes Cristian Ciocaltea
2020-06-25 23:34 ` [PATCH 07/10] arm: dts: owl-s500: Add I2C nodes Cristian Ciocaltea
2020-06-25 23:34 ` [PATCH 08/10] arm: dts: owl-s500-roseapplepi: Use UART clock from CMU Cristian Ciocaltea
2020-06-25 23:34 ` Cristian Ciocaltea [this message]
2020-06-25 23:34 ` [PATCH 10/10] arm: dts: owl-s500-roseapplepi: Enable I2C0 Cristian Ciocaltea
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