From patchwork Tue Mar 5 13:11:29 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amar X-Patchwork-Id: 225016 X-Patchwork-Delegate: promsoft@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id DF6D02C032C for ; Tue, 5 Mar 2013 23:58:29 +1100 (EST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 6B9264A15E; Tue, 5 Mar 2013 13:58:28 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6vGwya+bSM-U; Tue, 5 Mar 2013 13:58:28 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 3C4D24A151; Tue, 5 Mar 2013 13:58:27 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 172274A151 for ; 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Tue, 05 Mar 2013 21:58:20 +0900 (KST) Received: from chrome-ubuntu.sisodomain.com ([107.108.73.106]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MJ600GDUUCXH840@mmp1.samsung.com> for u-boot@lists.denx.de; Tue, 05 Mar 2013 21:58:19 +0900 (KST) From: Amar To: u-boot@lists.denx.de Date: Tue, 05 Mar 2013 08:11:29 -0500 Message-id: <1362489090-7745-10-git-send-email-amarendra.xt@samsung.com> X-Mailer: git-send-email 1.8.0 In-reply-to: <1362489090-7745-1-git-send-email-amarendra.xt@samsung.com> References: <1362489090-7745-1-git-send-email-amarendra.xt@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrGLMWRmVeSWpSXmKPExsWyRsSkWvfNa9NAg9sbxC3e7u1kd2D0OHtn B2MAYxSXTUpqTmZZapG+XQJXxqIb65gL7qpW/N08ib2B8YRsFyMnh4SAicSrw4cYIWwxiQv3 1rN1MXJxCAksZZQ4+HkyE0zR3uYeJojEIkaJD+/2sEA4y5gkthw7CpTh4GATUJX4tdgepEFE QELiV/9VRpAaZoEORokdEzeDrRAWyJK4MPs/M4jNAlS/8dR8VhCbV8BD4uWua8wQ2+QkPux5 xA5icwLFF31eCBYXEnCXuNSzCGyxhMBtNomeR2dYIQYJSHybfIgF5AgJAVmJTQeg5khKHFxx g2UCo/ACRoZVjKKpBckFxUnpRcZ6xYm5xaV56XrJ+bmbGIFhePrfs/4djHcPWB9iTAYaN5FZ SjQ5HxjGeSXxhsYm5qbGpmZGlpaWpqQJK4nzyl+SCRQSSE8sSc1OTS1ILYovKs1JLT7EyMTB KdXAaO8jFbV21oq/Z2+68CV3fjDONdzbLf3dpO12i9ax13612zOzwoL85bd2qLfeyEpqmDvj 8B3PvP2TjN4+2+cSxGSolJY4p7AkUTnyg5ZbyAdh5zbbw/s/WVY1n9qc+fv9v/U5KUYxJy6+ FctPWProz7S17dnBO1/qON6L3yG05f7rA0Uv+qrslViKMxINtZiLihMB6vhHTlkCAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrMIsWRmVeSWpSXmKPExsVy+t9jAd03r00DDZZMYLJ4u7eT3YHR4+yd HYwBjFENjDYZqYkpqUUKqXnJ+SmZeem2St7B8c7xpmYGhrqGlhbmSgp5ibmptkouPgG6bpk5 QGOVFMoSc0qBQgGJxcVK+naYJoSGuOlawDRG6PqGBMH1GBmggYQ1jBmLbqxjLrirWvF38yT2 BsYTsl2MnBwSAiYSe5t7mCBsMYkL99azdTFycQgJLGKU+PBuDwuEs4xJYsuxo0BVHBxsAqoS vxbbgzSICEhI/Oq/yghSwyzQwSixY+JmRpCEsECWxIXZ/5lBbBag+o2n5rOC2LwCHhIvd11j htgmJ/FhzyN2EJsTKL7o80KwuJCAu8SlnkUsExh5FzAyrGIUTS1ILihOSs811CtOzC0uzUvX S87P3cQIDvJnUjsYVzZYHGIU4GBU4uFlOGoSKMSaWFZcmXuIUYKDWUmEd+dT00Ah3pTEyqrU ovz4otKc1OJDjMlAV01klhJNzgdGYF5JvKGxibmpsamliYWJmSVpwkrivIynngQICaQnlqRm p6YWpBbBbGHi4JRqYHTcuvXzb/1Fv/Ien9arurJ4U+gMh3Pv16lJVp6z1NTl5D5SI95VcGhR bnhn8fS+13IT42u31j8KahBx3iVxN1/4+YoLD9WcN59hK/iw1umO3PRrc/9f0Jv9PSnO2TnE ochsvmNCv6wQT2+1j8aRLwrxJxMOX/9w99pCAYbF21d+bvt2aNXWBmMlluKMREMt5qLiRAAJ zYXrtgIAAA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Cc: patches@linaro.org, jh80.chung@samsung.com, afleming@gmail.com Subject: [U-Boot] [PATCH V7 09/10] COMMON: MMC: Command to support EMMC booting and to resize EMMC boot partition X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.11 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de This patch adds commands to access(open/close) and resize boot partitions on EMMC. Signed-off-by: Amar Acked-by: Simon Glass --- Changes since V1: 1)Combined the common piece of code between 'open' and 'close' operations. Changes since V2: 1)Updation of commit message and resubmition of proper patch set. Changes since V3: No change. Changes since V4: 1)Added a new funtion boot_part_access() to combine the common parts of 'mmc open' and 'mmc close' functionalities. 2)Used the generic function "mmc_boot_part_access()" instead of two functions "mmc_boot_open()" and "mmc_boot_close()". By doing so user can specify which boot partition to be accessed (opened / closed). Changes since V5: 1)Updated minor nits in response to review comments. Changes since V6: No change. common/cmd_mmc.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 97 insertions(+), 1 deletion(-) diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c index 7dacd51..5f2ae70 100644 --- a/common/cmd_mmc.c +++ b/common/cmd_mmc.c @@ -147,6 +147,31 @@ U_BOOT_CMD( "- display info of the current MMC device" ); +static int boot_part_access(struct mmc *mmc, u32 ack, u32 part_num, u32 access) +{ + int err; + err = mmc_boot_part_access(mmc, ack, part_num, access); + + if ((err == 0) && (access != 0)) { + printf("\t\t\t!!!Notice!!!\n"); + printf("!You must close EMMC boot Partition after all" + "images are written\n"); + printf("!EMMC boot partition has continuity at image" + "writing time.\n"); + printf("!So, do not close the boot partition before all" + "images are written.\n"); + return 0; + } else if ((err == 0) && (access == 0)) + return 0; + else if ((err != 0) && (access != 0)) { + printf("EMMC boot partition-%d OPEN Failed.\n", part_num); + return 1; + } else { + printf("EMMC boot partition-%d CLOSE Failed.\n", part_num); + return 1; + } +} + static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { enum mmc_state state; @@ -248,6 +273,71 @@ static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) curr_device, mmc->part_num); return 0; + } else if ((strcmp(argv[1], "open") == 0) || + (strcmp(argv[1], "close") == 0)) { + int dev; + struct mmc *mmc; + u32 ack, part_num, access = 0; + + if (argc == 4) { + dev = simple_strtoul(argv[2], NULL, 10); + part_num = simple_strtoul(argv[3], NULL, 10); + } else + return CMD_RET_USAGE; + + mmc = find_mmc_device(dev); + if (!mmc) { + printf("no mmc device at slot %x\n", dev); + return 1; + } + + if (IS_SD(mmc)) { + printf("SD device cannot be opened/closed\n"); + return 1; + } + + if ((part_num <= 0) || (part_num > MMC_NUM_BOOT_PARTITION)) { + printf("Invalid boot partition number:\n"); + printf("Boot partition number cannot be <= 0\n"); + printf("EMMC44 supports only 2 boot partitions\n"); + return 1; + } + + if (strcmp(argv[1], "open") == 0) + access = part_num; /* enable R/W access to boot part*/ + if (strcmp(argv[1], "close") == 0) + access = 0; /* No access to boot partition */ + + /* acknowledge to be sent during boot operation */ + ack = 1; + return boot_part_access(mmc, ack, part_num, access); + + } else if (strcmp(argv[1], "bootpart") == 0) { + int dev; + dev = simple_strtoul(argv[2], NULL, 10); + + u32 bootsize = simple_strtoul(argv[3], NULL, 10); + u32 rpmbsize = simple_strtoul(argv[4], NULL, 10); + struct mmc *mmc = find_mmc_device(dev); + if (!mmc) { + printf("no mmc device at slot %x\n", dev); + return 1; + } + + if (IS_SD(mmc)) { + printf("It is not a EMMC device\n"); + return 1; + } + + if (0 == mmc_boot_partition_size_change(mmc, + bootsize, rpmbsize)) { + printf("EMMC boot partition Size %d MB\n", bootsize); + printf("EMMC RPMB partition Size %d MB\n", rpmbsize); + return 0; + } else { + printf("EMMC boot partition Size change Failed.\n"); + return 1; + } } state = MMC_INVALID; @@ -317,5 +407,11 @@ U_BOOT_CMD( "mmc rescan\n" "mmc part - lists available partition on current mmc device\n" "mmc dev [dev] [part] - show or set current mmc device [partition]\n" - "mmc list - lists available devices"); + "mmc list - lists available devices\n" + "mmc open \n" + " - Enable boot_part for booting and enable R/W access of boot_part\n" + "mmc close \n" + " - Enable boot_part for booting and disable access to boot_part\n" + "mmc bootpart \n" + " - change sizes of boot and RPMB partions of specified device\n"); #endif