From patchwork Thu Sep 21 14:29:54 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Jacques Hiblot X-Patchwork-Id: 816904 X-Patchwork-Delegate: jh80.chung@samsung.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.denx.de (client-ip=81.169.180.215; helo=lists.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.b="J27lqi6Q"; dkim-atps=neutral Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 3xyfRC19qYz9t3C for ; Fri, 22 Sep 2017 00:40:22 +1000 (AEST) Received: by lists.denx.de (Postfix, from userid 105) id A0888C22012; Thu, 21 Sep 2017 14:33:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RCVD_IN_DNSWL_NONE, T_DKIM_INVALID autolearn=unavailable autolearn_force=no version=3.4.0 Received: from lists.denx.de (localhost [IPv6:::1]) by lists.denx.de (Postfix) with ESMTP id 585F1C21F81; Thu, 21 Sep 2017 14:31:03 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id F2B46C21D8C; Thu, 21 Sep 2017 14:30:42 +0000 (UTC) Received: from fllnx210.ext.ti.com (fllnx210.ext.ti.com [198.47.19.17]) by lists.denx.de (Postfix) with ESMTPS id DA817C21FFC for ; Thu, 21 Sep 2017 14:30:37 +0000 (UTC) Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by fllnx210.ext.ti.com (8.15.1/8.15.1) with ESMTP id v8LEUXoF000326; Thu, 21 Sep 2017 09:30:33 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com; s=ti-com-17Q1; t=1506004233; bh=qOt/0PsESyumaYezCjMrBYl2TuDx/oQQaIf5eCXUhOo=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=J27lqi6QoNh8k5a+8b1i2iDCtt8059q2JcYi/RMaN+9KlfQDvcr5ShVK9amO/JbPK 2cw32GUqtpqNQhlOx2A/J2TnLfeN2pQ/vvo2pPtpyIF+o07s1heATvbwXJRMQaW+Ox kIwRkYUZ2vrBGAVpTRfWKs6CTZrKsWHar3tpYyo8= Received: from DLEE101.ent.ti.com (dlee101.ent.ti.com [157.170.170.31]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id v8LEUXwp019645; Thu, 21 Sep 2017 09:30:33 -0500 Received: from DLEE106.ent.ti.com (157.170.170.36) by DLEE101.ent.ti.com (157.170.170.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.1.845.34; Thu, 21 Sep 2017 09:30:33 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DLEE106.ent.ti.com (157.170.170.36) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.845.34 via Frontend Transport; Thu, 21 Sep 2017 09:30:33 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id v8LEUWRg000800; Thu, 21 Sep 2017 09:30:32 -0500 From: Jean-Jacques Hiblot To: , , , Date: Thu, 21 Sep 2017 16:29:54 +0200 Message-ID: <1506004213-22620-8-git-send-email-jjhiblot@ti.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1506004213-22620-1-git-send-email-jjhiblot@ti.com> References: <1506004213-22620-1-git-send-email-jjhiblot@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Cc: u-boot@lists.denx.de Subject: [U-Boot] [PATCH v2 07/26] mmc: Add a function to dump the mmc capabilities X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" This adds a simple helper function to display information (bus width and mode) based on a capability mask. Useful for debug. Signed-off-by: Jean-Jacques Hiblot --- drivers/mmc/mmc.c | 24 ++++++++++++++++++++++++ include/mmc.h | 1 + 2 files changed, 25 insertions(+) diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 94b3a02..0b74e78 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -1136,6 +1136,30 @@ static void mmc_set_bus_width(struct mmc *mmc, uint width) mmc_set_ios(mmc); } +#if CONFIG_IS_ENABLED(MMC_VERBOSE) || defined(DEBUG) +/* + * helper function to display the capabilities in a human + * friendly manner. The capabilities include bus width and + * supported modes. + */ +void mmc_dump_capabilities(const char *text, uint caps) +{ + enum bus_mode mode; + + printf("%s: widths [", text); + if (caps & MMC_MODE_8BIT) + printf("8, "); + if (caps & MMC_MODE_4BIT) + printf("4, "); + printf("1] modes ["); + + for (mode = MMC_LEGACY; mode < MMC_MODES_END; mode++) + if (MMC_CAP(mode) & caps) + printf("%s, ", mmc_mode_name(mode)); + printf("\b\b]\n"); +} +#endif + static int sd_select_bus_freq_width(struct mmc *mmc) { int err; diff --git a/include/mmc.h b/include/mmc.h index 76bd57a..dd83f14 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -426,6 +426,7 @@ enum bus_mode { }; const char *mmc_mode_name(enum bus_mode mode); +void mmc_dump_capabilities(const char *text, uint caps); /* * With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device