From patchwork Tue Apr 3 19:20:07 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabio Estevam X-Patchwork-Id: 150530 Return-Path: X-Original-To: incoming-imx@patchwork.ozlabs.org Delivered-To: patchwork-incoming-imx@bilbo.ozlabs.org Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:4978:20e::2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 10F80B6FE2 for ; Wed, 4 Apr 2012 05:22:28 +1000 (EST) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1SF9HM-0000N1-Fx; Tue, 03 Apr 2012 19:20:32 +0000 Received: from mail-yw0-f49.google.com ([209.85.213.49]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1SF9HB-0000Ld-6c for linux-arm-kernel@lists.infradead.org; Tue, 03 Apr 2012 19:20:22 +0000 Received: by yhjj52 with SMTP id j52so38166yhj.36 for ; Tue, 03 Apr 2012 12:20:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=CGiOLjqmlyExgkDlGoaufYmMYGaLFm5t6vnzhNofhYk=; b=fSMDvzDi7MjoqYnqWIMOCH51iVKPJUgv52QqZqcjQ5ATP/DWWnnsnIsE/bFez0JVkb Ckxa4m//U7bWFr6Mt+P91TLgJkdUGJGS08cQVV75vmnwQilNjfZhI/4eiQ0fIvwGCFdD fWHt4+vo/vO3iPmnTzd957Nq3/Vj/FPCaAUKEf9PrfmPIjKmey1TSza0bB0I2wfUhiqy RM0XvIiLoa6IhF7aP7RgeUvcGnhfoiaU0Evq/W4F+m4HZgooFRa+pbEBnIJ3PAZcabKU +6X2DogmFoRCgChQRlA5FE3s1JavFblcsP2QxvhWBCiYMMxVAEy6x2iUl7+GtB+2DVwa hbNQ== Received: by 10.236.78.201 with SMTP id g49mr12468266yhe.33.1333480820375; Tue, 03 Apr 2012 12:20:20 -0700 (PDT) Received: from localhost.localdomain ([201.82.161.72]) by mx.google.com with ESMTPS id e45sm60728877yhk.2.2012.04.03.12.20.18 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 03 Apr 2012 12:20:19 -0700 (PDT) From: Fabio Estevam To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 3/3] ARM: mx28evk: Add SPI NOR flash support Date: Tue, 3 Apr 2012 16:20:07 -0300 Message-Id: <1333480807-10480-3-git-send-email-festevam@gmail.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1333480807-10480-1-git-send-email-festevam@gmail.com> References: <1333480807-10480-1-git-send-email-festevam@gmail.com> X-Spam-Note: CRM114 invocation failed X-Spam-Score: -2.7 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.213.49 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (festevam[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature Cc: Fabio Estevam , shawn.guo@freescale.com, kernel@pengutronix.de X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org List-Id: linux-imx-kernel.lists.patchwork.ozlabs.org Add SPI NOR flash support. By default, the mx28evk board does not come with a SPI NOR flash populated. Soldered a sst25vf016b and tested it using mtd-utils. Signed-off-by: Fabio Estevam --- I will submit the spi-mxs driver in a day or so. arch/arm/mach-mxs/Kconfig | 1 + arch/arm/mach-mxs/mach-mx28evk.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig index c57f996..8078fbe 100644 --- a/arch/arm/mach-mxs/Kconfig +++ b/arch/arm/mach-mxs/Kconfig @@ -52,6 +52,7 @@ config MACH_MX28EVK select MXS_HAVE_PLATFORM_MXSFB select MXS_HAVE_PLATFORM_MXS_SAIF select MXS_HAVE_PLATFORM_MXS_I2C + select MXS_HAVE_PLATFORM_MXS_SPI select MXS_HAVE_PLATFORM_RTC_STMP3XXX select MXS_OCOTP help diff --git a/arch/arm/mach-mxs/mach-mx28evk.c b/arch/arm/mach-mxs/mach-mx28evk.c index e386c14..f3bca27 100644 --- a/arch/arm/mach-mxs/mach-mx28evk.c +++ b/arch/arm/mach-mxs/mach-mx28evk.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -204,6 +205,12 @@ static const iomux_cfg_t mx28evk_pads[] __initconst = { (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0 | (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), + /* SPI2 */ + MX28_PAD_SSP2_SCK__SSP2_SCK, + MX28_PAD_SSP2_MOSI__SSP2_CMD, + MX28_PAD_SSP2_MISO__SSP2_D0, + MX28_PAD_SSP2_SS0__SSP2_D3 | + (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP), }; /* led */ @@ -409,6 +416,15 @@ static const struct mxs_saif_platform_data }, }; +static struct spi_board_info mx28evk_spi_nor_device[] = { + { + .modalias = "sst25vf016b", + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 2, + .chip_select = 0, + }, +}; + static void __init mx28evk_init(void) { int ret; @@ -454,6 +470,10 @@ static void __init mx28evk_init(void) mx28_add_rtc_stmp3xxx(); gpio_led_register_device(0, &mx28evk_led_data); + + mx28_add_mxs_spi(2); + spi_register_board_info(mx28evk_spi_nor_device, + ARRAY_SIZE(mx28evk_spi_nor_device)); } static void __init mx28evk_timer_init(void)