From patchwork Sun Feb 17 12:15:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Summers X-Patchwork-Id: 10816997 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1327F13A4 for ; Sun, 17 Feb 2019 12:16:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F05B32A7D4 for ; Sun, 17 Feb 2019 12:16:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E38F32A7D8; Sun, 17 Feb 2019 12:16:50 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 2C29D2A7D4 for ; Sun, 17 Feb 2019 12:16:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=hAtmyc2fY3Mjs/PUypeEZ3ZNLcuVWxlmY9P/duZo69I=; b=OIsUWRT16Mkgbg Jl5zy8d/oYGJYjswvvvpT9JH96j1/uZYqd89QjOyWyXF5yOmxjdXKDUBikWqyhDzXLPWhNIcNosaG GN3ow+rOic+3qtASCvn0Wq71EaN09fOb02an9t5ehYtok8GAvuTBPC9xn5FYn6ntulU+RkpRcTE5S WKFW5+TQKBdriy9EA6Ggqcd4Izc8mLZpcUd+OJsYUUpmqRvvEgTpjIshan6W/S7ElGAeNHtvaZA4W WdLys14A7a/aqpNUCY7UlSds+TsFFfo4tkKUdQpbfHWz+7MGIfMkQBxNbFK5PFB3i+yTUz8wlV4Ct M/TihW1gGqSQWxfx0KqQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gvLND-0007cB-Ib; Sun, 17 Feb 2019 12:16:43 +0000 Received: from avasout06.plus.net ([212.159.14.18]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gvLMx-00078F-RE for linux-arm-kernel@lists.infradead.org; Sun, 17 Feb 2019 12:16:32 +0000 Received: from localhost.localdomain ([87.114.170.31]) by smtp with ESMTP id vLLzgM2tCHd2LvLMGgaQAn; Sun, 17 Feb 2019 12:15:44 +0000 X-CM-Score: 0.00 X-CNFS-Analysis: v=2.3 cv=FK01Odgs c=1 sm=1 tr=0 a=IwDniP0DpuMObaUqJdRMiQ==:117 a=IwDniP0DpuMObaUqJdRMiQ==:17 a=X63dCvaKAAAA:20 a=OvfN7MOIAAAA:8 a=AI1YhfOiAAAA:8 a=V5NFcaBHAAAA:8 a=5mpuRNi4AAAA:8 a=rvHh0E1XO6TprAeEZs4A:9 a=N-hkzyawj4u5XedJ:21 a=09-r2RrawWPGnzw1:21 a=5YTr_Nlhc76s4ZyS:21 a=WKcxsw4WtVgA:10 a=naW0c5UNiJ17WtinOetU:22 a=ZRk3jL6q91YNeXra8VxS:22 a=AIFGTXQOaoIMFke0skzX:22 a=eHWn0xJZPbZ7L6UZR85b:22 From: David Summers To: heiko@sntech.de, robh+dt@kernel.org, mark.rutland@arm.com Subject: [PATCH 2/3] ARM: dts: rk3288 Tinker Board (S) add wi-fi Date: Sun, 17 Feb 2019 12:15:12 +0000 Message-Id: <20190217121513.22965-3-beagleboard@davidjohnsummers.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190217121513.22965-1-beagleboard@davidjohnsummers.uk> References: <20190217121513.22965-1-beagleboard@davidjohnsummers.uk> MIME-Version: 1.0 X-CMAE-Envelope: MS4wfCWdXPU/DNP3jKkyuJiUWnmXRLkR2o7FCPTCxXKuXx5VGBSmjaBmQHYNyKOy8h2qNxAYfbSIX3qX9k4aNPeO0wTcZ9lfkXBlqfK/aZiy3b/cm5+DfA6s Klf5B/gchs6FBhI3npjiT9ZI6S0YIEKez1YOUtuDOMEfChq8P6WH7pr4ZnIZnECsUa2dGpUySvpjGoZf7lP6B/vdRL/3Dxb87Yw= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190217_041628_346961_00D85FB1 X-CRM114-Status: GOOD ( 15.85 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stefan Wahren , linux-rockchip@lists.infradead.org, David Summers , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds the wifi to the ASUS Tinker Board (S) machines. Unfortunatly neither the Tinker Board nor the Tinker Board S schematic indicate how the WiFi is wired up on these devices. The WiFi is provided by the RTL8723BS device, that has sdio WiFi and UART Bluetooth. This patch just adds the WiFi interface. With no schematic, most of the wiring has been derived from the ASUS patch to Debian: https://github.com/TinkerBoard/debian_kernel/commit/6a3128ade33f758887048578ada61a4b7ab8e678 In conjunction with the pin out of the RTL8723BS device: http://files.pine64.org/doc/datasheet/pine64/RTL8723BS.pdf http://cit.odessa.ua/media/pdf/Intel-Compute-Stick/FN-Link_F23BDSM25-W1.pdf The only unusual part is that to bring the card up, both the pins RK_PD3 and RK_PD4 need to be pulled. Why this needs to be done is not clear, best explaination is that they are connected to the RTL8723BS pins WL_DIS# and BT_DIS#, which the data sheet vaguely says: Shared with GPIO9 This Pin Can Externally Shutdown the RTL8723BS WLAN function when BT_DISn is Pulled Low. When this pin deasserted, SDIO interface will be disabled. This pin can also support the WLAN Ra dio-off function with host interface remaining connected. Anyway extensive testing the TheSaint on ArchLinux Arm Forum https://archlinuxarm.org/forum/viewtopic.php?f=44&t=13064&start=120#p60548 Signed-off-by: David Summers Signed-off-by: Stefan Wahren --- arch/arm/boot/dts/rk3288-tinker.dtsi | 39 +++++++++++++++++++++++++--- 1 file changed, 36 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/rk3288-tinker.dtsi b/arch/arm/boot/dts/rk3288-tinker.dtsi index fceaeed44e34..e1796f340eef 100644 --- a/arch/arm/boot/dts/rk3288-tinker.dtsi +++ b/arch/arm/boot/dts/rk3288-tinker.dtsi @@ -3,8 +3,9 @@ * Copyright (c) 2017 Fuzhou Rockchip Electronics Co., Ltd. */ #include "rk3288.dtsi" #include +#include / { chosen { @@ -98,6 +97,15 @@ startup-delay-us = <100000>; vin-supply = <&vcc_io>; }; + + sdio_pwrseq: sdio-pwrseq { + compatible = "mmc-pwrseq-simple"; + clocks = <&rk808 RK808_CLKOUT1>; + clock-names = "ext_clock"; + pinctrl-names = "default"; + pinctrl-0 = <&wifi_enable>; + reset-gpios = <&gpio4 RK_PD3 GPIO_ACTIVE_LOW>, <&gpio4 RK_PD4 GPIO_ACTIVE_LOW>; + }; }; &cpu0 { @@ -337,8 +345,8 @@ &io_domains { status = "okay"; - sdcard-supply = <&vccio_sd>; + wifi-supply = <&vcc_18>; }; &pinctrl { @@ -417,6 +425,12 @@ rockchip,pins = <7 8 RK_FUNC_GPIO &pcfg_pull_none>; }; }; + + sdio { + wifi_enable: wifi-enable { + rockchip,pins = <4 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>, <4 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; }; &pwm0 { @@ -440,6 +454,25 @@ vqmmc-supply = <&vccio_sd>; }; +&sdio0 { + bus-width = <4>; + cap-sd-highspeed; + cap-sdio-irq; + keep-power-in-suspend; + mmc-pwrseq = <&sdio_pwrseq>; + non-removable; + pinctrl-names = "default"; + pinctrl-0 = <&sdio0_bus4>, <&sdio0_cmd>, <&sdio0_clk>, <&sdio0_int>; + max-frequency = <50000000>; + sd-uhs-sdr12; + sd-uhs-sdr25; + sd-uhs-sdr50; + sd-uhs-ddr50; + vmmc-supply = <&vcc_io>; + vqmmc-supply = <&vcc_18>; + status = "okay"; +}; + &tsadc { rockchip,hw-tshut-mode = <1>; /* tshut mode 0:CRU 1:GPIO */ rockchip,hw-tshut-polarity = <1>; /* tshut polarity 0:LOW 1:HIGH */