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>

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 235ad55..753eb51 100644 (file)
--- 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 (file)
index 0000000..246a1a9
--- /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>;
+       };
+};