Add support for the TI Wi-Fi WL1837 device on SolidRun's revision
1.5 microsoms.
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
---
arch/arm/boot/dts/imx6qdl-microsom-ti.dtsi | 170 +++++++++++++++++++++++++++++
1 file changed, 170 insertions(+)
create mode 100644 arch/arm/boot/dts/imx6qdl-microsom-ti.dtsi
diff --git a/arch/arm/boot/dts/imx6qdl-microsom-ti.dtsi b/arch/arm/boot/dts/imx6qdl-microsom-ti.dtsi
new file mode 100644
index 000000000000..44a97ba93a95
--- /dev/null
+++ b/arch/arm/boot/dts/imx6qdl-microsom-ti.dtsi
@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2013,2014 Russell King
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ nvcc_sd1: regulator-nvcc-sd1 {
+ compatible = "regulator-fixed";
+ regulator-always-on;
+ regulator-name = "nvcc_sd1";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <&vcc_3v3>;
+ };
+
+ clk_ti_wifi: ti-wifi-clock {
+ /* This is a hack around the kernel - using "fixed clock"
+ * results in the "pinctrl" properties being ignored, and
+ * the clock not being output. Instead, use a gated clock
+ * and the unrouted WL_XTAL_PU gpio.
+ */
+ compatible = "gpio-gate-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_microsom_ti_clk>;
+ enable-gpios = <&gpio5 5 GPIO_ACTIVE_HIGH>;
+ };
+
+ pwrseq_ti_wifi: ti-wifi-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_microsom_ti_wifi_en>;
+ reset-gpios = <&gpio5 26 GPIO_ACTIVE_LOW>;
+ post-power-on-delay-ms = <200>;
+ clocks = <&clk_ti_wifi>;
+ clock-names = "ext_clock";
+ };
+};
+
+&iomuxc {
+ microsom {
+ pinctrl_microsom_ti_bt: microsom-ti-bt {
+ fsl,pins = <
+ /* BT_EN_SOC */
+ MX6QDL_PAD_CSI0_DAT14__GPIO6_IO00 0x40013070
+ >;
+ };
+
+ pinctrl_microsom_ti_clk: microsom-ti-clk {
+ fsl,pins = <
+ /* EXT_32K */
+ MX6QDL_PAD_GPIO_8__XTALOSC_REF_CLK_32K 0x1b0b0
+ /* WL_XTAL_PU (unrouted) */
+ MX6QDL_PAD_DISP0_DAT11__GPIO5_IO05 0x40013070
+ >;
+ };
+
+ pinctrl_microsom_ti_wifi_en: microsom-ti-wifi-en {
+ fsl,pins = <
+ /* WLAN_EN_SOC */
+ MX6QDL_PAD_CSI0_DAT8__GPIO5_IO26 0x40013070
+ >;
+ };
+
+ pinctrl_microsom_ti_wifi_irq: microsom-ti-wifi-irq {
+ fsl,pins = <
+ /* WLAN_IRQ */
+ MX6QDL_PAD_CSI0_DAT18__GPIO6_IO04 0x40013070
+ >;
+ };
+
+ pinctrl_microsom_uart4: microsom-uart4 {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT12__UART4_TX_DATA 0x1b0b1
+ MX6QDL_PAD_CSI0_DAT13__UART4_RX_DATA 0x1b0b1
+ MX6QDL_PAD_CSI0_DAT16__UART4_RTS_B 0x1b0b1
+ MX6QDL_PAD_CSI0_DAT17__UART4_CTS_B 0x1b0b1
+ >;
+ };
+
+ pinctrl_microsom_usdhc1: microsom-usdhc1 {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_CMD__SD1_CMD 0x17059
+ MX6QDL_PAD_SD1_CLK__SD1_CLK 0x10059
+ MX6QDL_PAD_SD1_DAT0__SD1_DATA0 0x17059
+ MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x17059
+ MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x17059
+ MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x17059
+ >;
+ };
+ };
+};
+
+/* UART4 - Connected to optional TI Wi-Fi/BT/FM */
+&uart4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_microsom_uart4>;
+ uart-has-rtscts;
+ status = "okay";
+
+ bluetooth {
+ compatible = "ti,wl1837-st";
+ clocks = <&clk_ti_wifi>;
+ clock-names = "ext_clock";
+ enable-gpios = <&gpio6 0 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_microsom_ti_bt>;
+ };
+};
+
+/* USDHC1 - Connected to optional TI Wi-Fi/BT/FM */
+&usdhc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_microsom_usdhc1>;
+ bus-width = <4>;
+ keep-power-in-suspend;
+ mmc-pwrseq = <&pwrseq_ti_wifi>;
+ non-removable;
+ vmmc-supply = <&vcc_3v3>;
+ /* vqmmc-supply = <&nvcc_sd1>; - MMC layer doesn't like it! */
+ status = "okay";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ wlcore@2 {
+ compatible = "ti,wl1837";
+ reg = <2>;
+ interrupts-extended = <&gpio6 4 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_microsom_ti_wifi_irq>;
+ };
+};
--
2.7.4
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