From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2ED25C3A5A0 for ; Mon, 20 Apr 2020 17:32:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0B34E207FC for ; Mon, 20 Apr 2020 17:32:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587403936; bh=ELExJDrsHxAW1f5Po7cKx9b1yYQLw/eUqCrMgMTSams=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=FGPdr8v1pUBv2I8AxZH0xR3zZvfUtm1PEnLC1mFyTEImPs96E+ZS8RTRYGxoAk0xn VcpT9wHAUuZViOMEVXJ89x1fBCKs0LSzDkw+Vra8hrfVlDBjdhFKvV6U+CqymWJMQb Ugd3+gtq1Q7MoBUZkC0nQ+qSJAhM+SFQIEEV/K80= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727090AbgDTRcP (ORCPT ); Mon, 20 Apr 2020 13:32:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:51406 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726296AbgDTRcO (ORCPT ); Mon, 20 Apr 2020 13:32:14 -0400 Received: from localhost.localdomain (unknown [157.46.94.248]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6547320782; Mon, 20 Apr 2020 17:32:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587403934; bh=ELExJDrsHxAW1f5Po7cKx9b1yYQLw/eUqCrMgMTSams=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eeDtm9R7Vj2lgcVJLc0IDHvZwr8k9g7zw9MiZhYvATtfV6QoUOtbuuWCBUBvYnCb4 iEZjdvAnAdcMq6lvZHJB29A89CJURyVTJtDgoRwMd0GNGy35aLlaprosVgkEOLT5bc K7y+xUqPw+dIZh4Q43ISBDFrFWVA7+wo9zud7N2o= From: mani@kernel.org To: robh+dt@kernel.org, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com Cc: devicetree@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH 6/6] ARM: dts: stm32mp1: Add IoT Box board support Date: Mon, 20 Apr 2020 23:01:24 +0530 Message-Id: <20200420173124.27416-7-mani@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200420173124.27416-1-mani@kernel.org> References: <20200420173124.27416-1-mani@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Manivannan Sadhasivam IoT Box is an IoT gateway device based on Stinger96 board powered by STM32MP1 SoC, designed and manufactured by Shiratech Solutions. This device makes use of Stinger96 board by having it as a base board with one additional mezzanine on top. Following are the features exposed by this device in addition to the Stinger96 board: * WiFi/BT * CCS811 VOC sensor * 2x Digital microphones IM69D130 * 12x WS2812B LEDs Following peripherals are tested and known to work: * WiFi/BT * CCS811 More information about this device can be found in Shiratech website: https://www.shiratech-solutions.com/products/iot-box/ Signed-off-by: Manivannan Sadhasivam --- arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/stm32mp157a-iot-box.dts | 92 +++++++++++++++++++++++ 2 files changed, 93 insertions(+) create mode 100644 arch/arm/boot/dts/stm32mp157a-iot-box.dts diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 966b81dfffd6..455ec6eb6303 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -1030,6 +1030,7 @@ dtb-$(CONFIG_ARCH_STM32) += \ stm32h743i-disco.dtb \ stm32mp157a-avenger96.dtb \ stm32mp157a-dk1.dtb \ + stm32mp157a-iot-box.dtb \ stm32mp157a-stinger96.dtb \ stm32mp157c-dhcom-pdk2.dtb \ stm32mp157c-dk2.dtb \ diff --git a/arch/arm/boot/dts/stm32mp157a-iot-box.dts b/arch/arm/boot/dts/stm32mp157a-iot-box.dts new file mode 100644 index 000000000000..fa1c006ce531 --- /dev/null +++ b/arch/arm/boot/dts/stm32mp157a-iot-box.dts @@ -0,0 +1,92 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (C) 2020 Manivannan Sadhasivam + */ + +/dts-v1/; +#include "stm32mp157a-stinger96.dtsi" + +/ { + model = "Shiratech STM32MP157A IoT Box"; + compatible = "shiratech,stm32mp157a-iot-box", "st,stm32mp157"; + + wlan_pwr: regulator-wlan { + compatible = "regulator-fixed"; + + regulator-name = "wl-reg"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + + gpios = <&gpiog 3 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; +}; + +&i2c2 { + ccs811@5b { + compatible = "ams,ccs811"; + reg = <0x5b>; + wakeup-gpios = <&gpioa 12 GPIO_ACTIVE_LOW>; + reset-gpios = <&gpioa 11 GPIO_ACTIVE_LOW>; + }; +}; + +&pinctrl { + /* + * Note: The SDMMC2 pins lack external pullups on data lines. Hence, + * we need to enable it in the SoC. + */ + sdmmc2_b4_pins_pull: sdmmc2-b4-pull { + pins1 { + pinmux = , /* SDMMC2_D0 */ + , /* SDMMC2_D1 */ + , /* SDMMC2_D2 */ + , /* SDMMC2_D3 */ + ; /* SDMMC2_CMD */ + slew-rate = <1>; + bias-pull-up; + }; + pins2 { + pinmux = ; /* SDMMC2_CK */ + slew-rate = <2>; + drive-push-pull; + bias-disable; + }; + }; +}; + +/* WiFi */ +&sdmmc2 { + pinctrl-names = "default", "opendrain", "sleep"; + pinctrl-0 = <&sdmmc2_b4_pins_pull>; + pinctrl-1 = <&sdmmc2_b4_od_pins_b>; + pinctrl-2 = <&sdmmc2_b4_sleep_pins_a>; + broken-cd; + non-removable; + st,neg-edge; + bus-width = <1>; + vmmc-supply = <&wlan_pwr>; + status = "okay"; + + #address-cells = <1>; + #size-cells = <0>; + brcmf: bcrmf@1 { + reg = <1>; + compatible = "brcm,bcm4329-fmac"; + }; +}; + +/* Bluetooth */ +&uart4 { + /* Note: HW flow control is broken, hence using custom CTS/RTS gpios */ + /delete-property/st,hw-flow-ctrl; + cts-gpios = <&gpioa 15 GPIO_ACTIVE_LOW>; + rts-gpios = <&gpiob 0 GPIO_ACTIVE_LOW>; + status = "okay"; + + bluetooth { + shutdown-gpios = <&gpiog 2 GPIO_ACTIVE_HIGH>; + compatible = "brcm,bcm43438-bt"; + max-speed = <115200>; + }; +}; -- 2.17.1