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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 CA45CC43441 for ; Tue, 13 Nov 2018 12:12:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8F2F022360 for ; Tue, 13 Nov 2018 12:12:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8F2F022360 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=denx.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732813AbeKMWKc (ORCPT ); Tue, 13 Nov 2018 17:10:32 -0500 Received: from mail-out.m-online.net ([212.18.0.9]:45265 "EHLO mail-out.m-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732565AbeKMWKb (ORCPT ); Tue, 13 Nov 2018 17:10:31 -0500 Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 42vRMn3dnYz1qxQJ; Tue, 13 Nov 2018 13:12:37 +0100 (CET) Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 42vRMn1qmCz1qqkb; Tue, 13 Nov 2018 13:12:37 +0100 (CET) X-Virus-Scanned: amavisd-new at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.70]) (amavisd-new, port 10024) with ESMTP id huRONACpOkaa; Tue, 13 Nov 2018 13:12:35 +0100 (CET) X-Auth-Info: R6XyVSsqWD7gnt4bau0atOGbviHh6AlYBmU1XBBADI0= Received: from localhost.localdomain (85-222-111-42.dynamic.chello.pl [85.222.111.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Tue, 13 Nov 2018 13:12:35 +0100 (CET) From: Lukasz Majewski To: Shawn Guo , Rob Herring , Mark Rutland Cc: Sascha Hauer , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Pengutronix Kernel Team , Stefan Agner , Fabio Estevam , Fabio Estevam , Lukasz Majewski Subject: [PATCH] ARM: dts: Provide support for reading ID code from MVB device (BK4) Date: Tue, 13 Nov 2018 13:12:13 +0100 Message-Id: <20181113121213.14296-1-lukma@denx.de> X-Mailer: git-send-email 2.11.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The procedure to read this ID value is as follows: rmmod spi_fsl_dspi insmod spi-gpio.ko echo 504 > /sys/class/gpio/export cat /sys/class/gpio/gpio504/value ... echo 511 > /sys/class/gpio/export cat /sys/class/gpio/gpio511/value rmmod spi-gpio.ko insmod spi_fsl_dspi Signed-off-by: Lukasz Majewski --- arch/arm/boot/dts/vf610-bk4.dts | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/arch/arm/boot/dts/vf610-bk4.dts b/arch/arm/boot/dts/vf610-bk4.dts index cab95714c058..f01c735807ae 100644 --- a/arch/arm/boot/dts/vf610-bk4.dts +++ b/arch/arm/boot/dts/vf610-bk4.dts @@ -59,6 +59,29 @@ regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; }; + + spi_gpio { + compatible = "spi-gpio"; + pinctrl-0 = <&pinctrl_gpio_spi>; + pinctrl-names = "default"; + #address-cells = <1>; + #size-cells = <0>; + /* PTD12 ->RPIO[91] */ + sck-gpios = <&gpio2 27 GPIO_ACTIVE_LOW>; + /* PTD10 ->RPIO[89] */ + miso-gpios = <&gpio2 25 GPIO_ACTIVE_HIGH>; + num-chipselects = <0>; + + 72xx165@0 { + compatible = "pisosr-gpio"; + reg = <0>; + gpio-controller; + #gpio-cells = <2>; + /* PTB18 -> RGPIO[40] */ + load-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>; + spi-max-frequency = <100000>; + }; + }; }; &adc0 { @@ -430,6 +453,14 @@ >; }; + pinctrl_gpio_spi: pinctrl-gpio-spi { + fsl,pins = < + VF610_PAD_PTB18__GPIO_40 0x1183 + VF610_PAD_PTD10__GPIO_89 0x1183 + VF610_PAD_PTD12__GPIO_91 0x1183 + >; + }; + pinctrl_i2c2: i2c2grp { fsl,pins = < VF610_PAD_PTA22__I2C2_SCL 0x34df -- 2.11.0