From owner-svn-src-all@FreeBSD.ORG Thu Dec 18 16:57:23 2014 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 9464560B; Thu, 18 Dec 2014 16:57:23 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 686991A2A; Thu, 18 Dec 2014 16:57:23 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id sBIGvND3063804; Thu, 18 Dec 2014 16:57:23 GMT (envelope-from imp@FreeBSD.org) Received: (from imp@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id sBIGvNc9063803; Thu, 18 Dec 2014 16:57:23 GMT (envelope-from imp@FreeBSD.org) Message-Id: <201412181657.sBIGvNc9063803@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: imp set sender to imp@FreeBSD.org using -f From: Warner Losh Date: Thu, 18 Dec 2014 16:57:23 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r275905 - head/sys/dev/mmc X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Dec 2014 16:57:23 -0000 Author: imp Date: Thu Dec 18 16:57:22 2014 New Revision: 275905 URL: https://svnweb.freebsd.org/changeset/base/275905 Log: Don't deselect the card too soon. To set the block size or switch the function parameters, the card has to be in transfer state. If it is in the idle state, the commands are ignored. This caused us not to set the proper parameters that we later assume to be present, leading to downstream failures of the card / interface as our state machine mismatches the card's. Submitted by: Svatopluk Kraus , Michal Meloun Modified: head/sys/dev/mmc/mmc.c Modified: head/sys/dev/mmc/mmc.c ============================================================================== --- head/sys/dev/mmc/mmc.c Thu Dec 18 16:57:19 2014 (r275904) +++ head/sys/dev/mmc/mmc.c Thu Dec 18 16:57:22 2014 (r275905) @@ -1357,7 +1357,6 @@ mmc_discover_cards(struct mmc_softc *sc) ivar->erase_sector = 16 << ivar->sd_status.au_size; } - mmc_select_card(sc, 0); /* Find max supported bus width. */ if ((mmcbr_get_caps(sc->dev) & MMC_CAP_4_BIT_DATA) && (ivar->scr.bus_widths & SD_SCR_BUS_WIDTH_4)) @@ -1385,6 +1384,7 @@ mmc_discover_cards(struct mmc_softc *sc) child = device_add_child(sc->dev, NULL, -1); device_set_ivars(child, ivar); } + mmc_select_card(sc, 0); return; } mmc_decode_cid_mmc(ivar->raw_cid, &ivar->cid); @@ -1443,7 +1443,6 @@ mmc_discover_cards(struct mmc_softc *sc) ivar->hs_tran_speed = ivar->tran_speed; /* Find max supported bus width. */ ivar->bus_width = mmc_test_bus_width(sc); - mmc_select_card(sc, 0); /* Handle HC erase sector size. */ if (ivar->raw_ext_csd[EXT_CSD_ERASE_GRP_SIZE] != 0) { ivar->erase_sector = 1024 * @@ -1451,6 +1450,7 @@ mmc_discover_cards(struct mmc_softc *sc) mmc_switch(sc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_ERASE_GRP_DEF, 1); } + mmc_select_card(sc, 0); } else { ivar->bus_width = bus_width_1; ivar->timing = bus_timing_normal;