From patchwork Tue Jun 9 14:25:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Drew Fustini X-Patchwork-Id: 199312 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=-11.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 E9208C433DF for ; Tue, 9 Jun 2020 14:25:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B485E20734 for ; Tue, 9 Jun 2020 14:25:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=beagleboard-org.20150623.gappssmtp.com header.i=@beagleboard-org.20150623.gappssmtp.com header.b="bZo0Gti1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730250AbgFIOZL (ORCPT ); Tue, 9 Jun 2020 10:25:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37940 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729119AbgFIOZK (ORCPT ); Tue, 9 Jun 2020 10:25:10 -0400 Received: from mail-wr1-x442.google.com (mail-wr1-x442.google.com [IPv6:2a00:1450:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A27C9C08C5C2 for ; Tue, 9 Jun 2020 07:25:09 -0700 (PDT) Received: by mail-wr1-x442.google.com with SMTP id c3so21519517wru.12 for ; Tue, 09 Jun 2020 07:25:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=beagleboard-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:mime-version:content-disposition; bh=K4rJYCnsX/Tj+0hJNClACYILsDLzG+crfTmE8yyLMu0=; b=bZo0Gti1Sunym080vSY/iIyUfceTgSDi4jC8Vjap0IwR21v1vkt+7qklae8IIUCTPY mPoCjARIuLdjIUsXJWAAm1r34IK67oCosIGbw8GN8pp5dbxh0f0ToaJOUp5YFs9zl/Li KuMI4AO8o3KPKHax4nar5kqHOeS1jOjr8IvrF7ICkzlKffnRRhymEJmvvLXi/XNdk9w6 XcWZurXnBuLlxluoxgTnpDd9xHBeR2QGrI1JPVPnG7gJX0o4VF8KebzUzA8h1O1a3KG1 +bdrndxJpiYjEFAW5X0sgCyiFyaIWyz3GlVDMYsNh+TyV6L4+yeZNPum6qnj3SD3H44u ZGkA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition; bh=K4rJYCnsX/Tj+0hJNClACYILsDLzG+crfTmE8yyLMu0=; b=TWHtRwpCmEaL8utCsrJMRBGEFdBfC8AGybm7uTlACGrDA0ImcbzckyMsk8CdIRPMoc WSc+7wdceWsHs2j6vh3uhYIbpBmOB5ywOOfGCSmLyiyCwtgbM5kLIrm38mfH/hsNvynC KEV6XNMCSpCmeNkJBLMma1CgpKKvhD8rtHr9AvhvL/ZhcN9PJyYAER/6/24PUQjcVzdT fJr4QB7R94aHwIOn/LNqZBLD3gmp9O5znOJZnzkGD2j3xvkL61SQkn/xfqZW3rsU2bs3 afGVRX42iZ5GvoGSGQQnHrM6jxPmbUNa+BEVB//HZw+jV1MGpI/QUtCl490u+z/pytXi P+tw== X-Gm-Message-State: AOAM531CHNSpXgrrhBdQIo7WU1nL5tasce1Kl0gARA13A5lgBVynhwF+ dwgJJ9RF0xFX2H+lt2H1ae6MdA== X-Google-Smtp-Source: ABdhPJxs/Re5zuZyyrNoCFIeUXFXWK+c7XYa+Hs6EenLmsAK2lmeQx5Ri0u6hONwcURrgxbSx64N1A== X-Received: by 2002:a05:6000:114e:: with SMTP id d14mr4720249wrx.110.1591712708066; Tue, 09 Jun 2020 07:25:08 -0700 (PDT) Received: from x1 (i59F66838.versanet.de. [89.246.104.56]) by smtp.gmail.com with ESMTPSA id j4sm3285673wma.7.2020.06.09.07.25.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Jun 2020 07:25:07 -0700 (PDT) Date: Tue, 9 Jun 2020 16:25:04 +0200 From: Drew Fustini To: Tony Lindgren , Rob Herring , Linus Walleij , Grygorii Strashko , =?iso-8859-1?q?Beno=EEt?= Cousson , Linux-OMAP , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Jason Kridner , Robert Nelson Subject: [PATCH] arm: dts: am335x-pocketbeagle: add gpio-line-names Message-ID: <20200609142504.GA2955236@x1> MIME-Version: 1.0 Content-Disposition: inline Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The BeagleBoard.org PocketBeagle has P1 and P2 headers [0] which expose many of the TI AM3358 SoC balls to stacking expansion boards called "capes", or to other external connections like jumper wires connected to a breadboard. Note: the AM3358 die is actually embedded inside of the OSD335x-SM System-in-Package (SiP) [1] but that is irrelevant to the gpio driver. Many of the P1 and P2 header pins can muxed to a GPIO line. The gpio-line-names describe which P1 or P2 pin that line goes to and the default mux for that P1 or P2 pin if it is not GPIO. Some GPIO lines are named "[NC]" as the corresponding balls are not routed to anything on the PCB. The goal for these names is to make it easier for a user viewing the output of gpioinfo to determine which P1 or P2 pin is connected to a GPIO line. The output of gpioinfo on a PocketBeagle would be: gpiochip0 - 32 lines: line 0: "[NC]" unused input active-high line 1: "[NC]" unused input active-high line 2: "P1.08 [SPI0_CLK]" unused input active-high line 3: "P1.10 [SPI0_MISO]" unused input active-high line 4: "P1.12 [SPI0_MOSI]" unused input active-high line 5: "P1.06 [SPI0_CS]" unused input active-high line 6: "[MMC0_CD]" "cd" input active-low [used] line 7: "P2.29 [SPI1_CLK]" unused input active-high line 8: "[NC]" unused input active-high line 9: "[NC]" unused input active-high line 10: "[NC]" unused input active-high line 11: "[NC]" unused input active-high line 12: "P1.26 [I2C2_SDA]" unused input active-high line 13: "P1.28 [I2C2_SCL]" unused input active-high line 14: "P2.11 [I2C1_SDA]" unused input active-high line 15: "P2.09 [I2C1_SCL]" unused input active-high line 16: "[NC]" unused input active-high line 17: "[NC]" unused input active-high line 18: "[NC]" unused input active-high line 19: "P2.31 [SPI1_CS]" unused input active-high line 20: "P1.20 [PRU0.16]" unused input active-high line 21: "[NC]" unused input active-high line 22: "[NC]" unused input active-high line 23: "P2.03" unused input active-high line 24: "[NC]" unused input active-high line 25: "[NC]" unused input active-high line 26: "P1.34" unused input active-high line 27: "P2.19" unused input active-high line 28: "[NC]" unused input active-high line 29: "[NC]" unused input active-high line 30: "P2.05 [UART4_RX]" unused input active-high line 31: "P2.07 [UART4_TX]" unused input active-high gpiochip1 - 32 lines: line 0: "[NC]" unused input active-high line 1: "[NC]" unused input active-high line 2: "[NC]" unused input active-high line 3: "[NC]" unused input active-high line 4: "[NC]" unused input active-high line 5: "[NC]" unused input active-high line 6: "P1.06 [SPI0_CS]" unused input active-high line 7: "P1.06 [SPI0_CS]" unused input active-high line 8: "P2.27 [SPI1_MISO]" unused input active-high line 9: "P2.25 [SPI1_MOSI]" unused input active-high line 10: "P1.32 [UART0_RX]" unused input active-high line 11: "P1.30 [UART0_TX]" unused input active-high line 12: "P2.24" unused input active-high line 13: "P2.33" unused input active-high line 14: "P2.22" unused input active-high line 15: "P2.18" unused input active-high line 16: "[NC]" unused input active-high line 17: "[NC]" unused input active-high line 18: "P2.01 [PWM1A]" unused input active-high line 19: "[NC]" unused input active-high line 20: "P2.10" unused input active-high line 21: "[user led 0]" "beaglebone:green:usr0" output active-high [used] line 22: "[user led 1]" "beaglebone:green:usr1" output active-high [used] line 23: "[user led 2]" "beaglebone:green:usr2" output active-high [used] line 24: "[user led 3]" "beaglebone:green:usr3" output active-high [used] line 25: "P2.06" unused input active-high line 26: "P2.04" unused input active-high line 27: "P2.02" unused input active-high line 28: "P2.08" unused input active-high line 29: "[NC]" unused input active-high line 30: "[NC]" unused input active-high line 31: "[NC]" unused input active-high gpiochip2 - 32 lines: line 0: "[NC]" unused input active-high line 1: "P2.17" unused input active-high line 2: "[NC]" unused input active-high line 3: "[NC]" unused input active-high line 4: "[NC]" unused input active-high line 5: "[EEPROM_WP]" unused input active-high line 6: "[NC]" unused input active-high line 7: "[NC]" unused input active-high line 8: "[NC]" unused input active-high line 9: "[NC]" unused input active-high line 10: "[NC]" unused input active-high line 11: "[NC]" unused input active-high line 12: "[NC]" unused input active-high line 13: "[NC]" unused input active-high line 14: "[NC]" unused input active-high line 15: "[NC]" unused input active-high line 16: "[NC]" unused input active-high line 17: "[NC]" unused input active-high line 18: "[NC]" unused input active-high line 19: "[NC]" unused input active-high line 20: "[NC]" unused input active-high line 21: "[NC]" unused input active-high line 22: "P2.35 [AIN5]" unused input active-high line 23: "P1.02 [AIN6]" unused input active-high line 24: "P1.35 [PRU1.10]" unused input active-high line 25: "P1.04 [PRU1.11]" unused input active-high line 26: "[MMC0_DAT3]" unused input active-high line 27: "[MMC0_DAT2]" unused input active-high line 28: "[MMC0_DAT1]" unused input active-high line 29: "[MMC0_DAT0]" unused input active-high line 30: "[MMC0_CLK]" unused input active-high line 31: "[MMC0_CMD]" unused input active-high gpiochip3 - 32 lines: line 0: "[NC]" unused input active-high line 1: "[NC]" unused input active-high line 2: "[NC]" unused input active-high line 3: "[NC]" unused input active-high line 4: "[NC]" unused input active-high line 5: "[I2C0_SDA]" unused input active-high line 6: "[I2C0_SCL]" unused input active-high line 7: "[JTAG]" unused input active-high line 8: "[JTAG]" unused input active-high line 9: "[NC]" unused input active-high line 10: "[NC]" unused input active-high line 11: "[NC]" unused input active-high line 12: "[NC]" unused input active-high line 13: "P1.03 [USB1]" unused input active-high line 14: "P1.36 [PWM0A]" unused input active-high line 15: "P1.33 [PRU0.1]" unused input active-high line 16: "P2.32 [PRU0.2]" unused input active-high line 17: "P2.30 [PRU0.3]" unused input active-high line 18: "P1.31 [PRU0.4]" unused input active-high line 19: "P2.34 [PRU0.5]" unused input active-high line 20: "P2.28 [PRU0.6]" unused input active-high line 21: "P1.29 [PRU0.7]" unused input active-high line 22: "[NC]" unused input active-high line 23: "[NC]" unused input active-high line 24: "[NC]" unused input active-high line 25: "[NC]" unused input active-high line 26: "[NC]" unused input active-high line 27: "[NC]" unused input active-high line 28: "[NC]" unused input active-high line 29: "[NC]" unused input active-high line 30: "[NC]" unused input active-high line 31: "[NC]" unused input active-high [0] https://github.com/beagleboard/pocketbeagle/wiki/System-Reference-Manual#71_Expansion_Header_Connectors [1] https://octavosystems.com/app_notes/osd335x-family-pin-assignments/ Reviewed-by: Jason Kridner Reviewed-by: Robert Nelson Signed-off-by: Drew Fustini --- arch/arm/boot/dts/am335x-pocketbeagle.dts | 144 ++++++++++++++++++++++ 1 file changed, 144 insertions(+) diff --git a/arch/arm/boot/dts/am335x-pocketbeagle.dts b/arch/arm/boot/dts/am335x-pocketbeagle.dts index 4da719098028..60e5fa2b9156 100644 --- a/arch/arm/boot/dts/am335x-pocketbeagle.dts +++ b/arch/arm/boot/dts/am335x-pocketbeagle.dts @@ -59,6 +59,150 @@ vmmcsd_fixed: fixedregulator0 { }; }; +&gpio0 { + gpio-line-names = + "[NC]", + "[NC]", + "P1.08 [SPI0_CLK]", + "P1.10 [SPI0_MISO]", + "P1.12 [SPI0_MOSI]", + "P1.06 [SPI0_CS]", + "[MMC0_CD]", + "P2.29 [SPI1_CLK]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "P1.26 [I2C2_SDA]", + "P1.28 [I2C2_SCL]", + "P2.11 [I2C1_SDA]", + "P2.09 [I2C1_SCL]", + "[NC]", + "[NC]", + "[NC]", + "P2.31 [SPI1_CS]", + "P1.20 [PRU0.16]", + "[NC]", + "[NC]", + "P2.03", + "[NC]", + "[NC]", + "P1.34", + "P2.19", + "[NC]", + "[NC]", + "P2.05 [UART4_RX]", + "P2.07 [UART4_TX]"; +}; + +&gpio1 { + gpio-line-names = + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "P1.06 [SPI0_CS]", + "P1.06 [SPI0_CS]", + "P2.27 [SPI1_MISO]", + "P2.25 [SPI1_MOSI]", + "P1.32 [UART0_RX]", + "P1.30 [UART0_TX]", + "P2.24", + "P2.33", + "P2.22", + "P2.18", + "[NC]", + "[NC]", + "P2.01 [PWM1A]", + "[NC]", + "P2.10", + "[user led 0]", + "[user led 1]", + "[user led 2]", + "[user led 3]", + "P2.06", + "P2.04", + "P2.02", + "P2.08", + "[NC]", + "[NC]", + "[NC]"; +}; + +&gpio2 { + gpio-line-names = + "[NC]", + "P2.17", + "[NC]", + "[NC]", + "[NC]", + "[EEPROM_WP]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "P2.35 [AIN5]", + "P1.02 [AIN6]", + "P1.35 [PRU1.10]", + "P1.04 [PRU1.11]", + "[MMC0_DAT3]", + "[MMC0_DAT2]", + "[MMC0_DAT1]", + "[MMC0_DAT0]", + "[MMC0_CLK]", + "[MMC0_CMD]"; +}; + +&gpio3 { + gpio-line-names = + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[I2C0_SDA]", + "[I2C0_SCL]", + "[JTAG]", + "[JTAG]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "P1.03 [USB1]", + "P1.36 [PWM0A]", + "P1.33 [PRU0.1]", + "P2.32 [PRU0.2]", + "P2.30 [PRU0.3]", + "P1.31 [PRU0.4]", + "P2.34 [PRU0.5]", + "P2.28 [PRU0.6]", + "P1.29 [PRU0.7]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]", + "[NC]"; +}; + &am33xx_pinmux { i2c2_pins: pinmux-i2c2-pins { pinctrl-single,pins = <