ARM: dts: am335x-sancloud-bbe-extended-wifi: New devicetree

Add support for the SanCloud BBE Extended WiFi board which shares common
hardware with other BBE varients. Compared to the vanilla BBE, this
particular model:

  * adds a WiFi+Bluetooth module connected via SDIO and UART.

  * drops the HDMI encoder, barometer and accelerometer.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

2 files changed, 114 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 235ad559acb2..753eb5101f8a 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -894,6 +894,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
 	am335x-regor-rdk.dtb \
 	am335x-sancloud-bbe.dtb \
 	am335x-sancloud-bbe-lite.dtb \
+	am335x-sancloud-bbe-extended-wifi.dtb \
 	am335x-shc.dtb \
 	am335x-sbc-t335.dtb \
 	am335x-sl50.dtb \
diff --git a/arch/arm/boot/dts/am335x-sancloud-bbe-extended-wifi.dts b/arch/arm/boot/dts/am335x-sancloud-bbe-extended-wifi.dts
new file mode 100644
index 000000000000..246a1a9b3e44
--- /dev/null
+++ b/arch/arm/boot/dts/am335x-sancloud-bbe-extended-wifi.dts
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 Sancloud Ltd
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
+ */
+/dts-v1/;
+
+#include "am33xx.dtsi"
+#include "am335x-bone-common.dtsi"
+#include "am335x-boneblack-common.dtsi"
+#include "am335x-sancloud-bbe-common.dtsi"
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	model = "SanCloud BeagleBone Enhanced Extended WiFi";
+	compatible = "sancloud,am335x-boneenhanced",
+		     "ti,am335x-bone-black",
+		     "ti,am335x-bone",
+		     "ti,am33xx";
+
+	wlan_en_reg: fixedregulator@2 {
+		compatible = "regulator-fixed";
+		regulator-name = "wlan-en-regulator";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		startup-delay-us= <100000>;
+	};
+};
+
+&am33xx_pinmux {
+	mmc3_pins: pinmux_mmc3_pins {
+		pinctrl-single,pins = <
+			/* gpmc_a9.gpio1_25: RADIO_EN */
+			AM33XX_PADCONF(AM335X_PIN_GPMC_A9, PIN_OUTPUT_PULLUP, MUX_MODE7)
+
+			/* gpmc_ad12.mmc2_dat0 */
+			AM33XX_PADCONF(AM335X_PIN_GPMC_AD12, PIN_INPUT_PULLUP, MUX_MODE3)
+
+			/* gpmc_ad13.mmc2_dat1 */
+			AM33XX_PADCONF(AM335X_PIN_GPMC_AD13, PIN_INPUT_PULLUP, MUX_MODE3)
+
+			/* gpmc_ad14.mmc2_dat2 */
+			AM33XX_PADCONF(AM335X_PIN_GPMC_AD14, PIN_INPUT_PULLUP, MUX_MODE3)
+
+			/* gpmc_ad15.mmc2_dat3 */
+			AM33XX_PADCONF(AM335X_PIN_GPMC_AD15, PIN_INPUT_PULLUP, MUX_MODE3)
+
+			/* gpmc_csn3.mmc2_cmd */
+			AM33XX_PADCONF(AM335X_PIN_GPMC_CSN3, PIN_INPUT_PULLUP, MUX_MODE3)
+
+			/* gpmc_clk.mmc2_clk */
+			AM33XX_PADCONF(AM335X_PIN_GPMC_CLK, PIN_INPUT_PULLUP, MUX_MODE3)
+		>;
+	};
+
+	bluetooth_pins: pinmux_bluetooth_pins {
+		pinctrl-single,pins = <
+			/* event_intr0.gpio0_19 */
+			AM33XX_PADCONF(AM335X_PIN_XDMA_EVENT_INTR0, PIN_INPUT_PULLUP, MUX_MODE7)
+		>;
+	};
+
+	uart1_pins: pinmux_uart1_pins {
+		pinctrl-single,pins = <
+			/* uart1_rxd */
+			AM33XX_PADCONF(AM335X_PIN_UART1_RXD, PIN_INPUT, MUX_MODE0)
+
+			/* uart1_txd */
+			AM33XX_PADCONF(AM335X_PIN_UART1_TXD, PIN_INPUT, MUX_MODE0)
+
+			/* uart1_ctsn */
+			AM33XX_PADCONF(AM335X_PIN_UART1_CTSN, PIN_INPUT_PULLDOWN, MUX_MODE0)
+
+			/* uart1_rtsn */
+			AM33XX_PADCONF(AM335X_PIN_UART1_RTSN, PIN_OUTPUT_PULLDOWN, MUX_MODE0)
+		>;
+	};
+};
+
+&i2c2 {
+	status = "disabled";
+};
+
+&mmc3 {
+	status = "okay";
+	vmmc-supply = <&wlan_en_reg>;
+	bus-width = <4>;
+	non-removable;
+	cap-power-off-card;
+	ti,needs-special-hs-handling;
+	keep-power-in-suspend;
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc3_pins>;
+	dmas = <&edma_xbar 12 0 1
+		&edma_xbar 13 0 2>;
+	dma-names = "tx", "rx";
+	clock-frequency = <50000000>;
+	max-frequency = <50000000>;
+};
+
+&uart1 {
+	status = "okay";
+
+	bluetooth {
+		pinctrl-names = "default";
+		pinctrl-0 = <&uart1_pins &bluetooth_pins>;
+		compatible = "qcom,qca6174-bt";
+		enable-gpios = <&gpio1 25 GPIO_ACTIVE_HIGH>;
+		clocks = <&l4ls_clkctrl AM3_L4LS_UART2_CLKCTRL 0>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <19 IRQ_TYPE_EDGE_RISING>;
+	};
+};