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Mon, 21 Jan 2013 20:30:26 +0900 (KST) Received: from chrome-ubuntu.sisodomain.com ([107.108.73.106]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MGZ0092C3L1A540@mmp2.samsung.com> for u-boot@lists.denx.de; Mon, 21 Jan 2013 20:30:26 +0900 (KST) From: Amar To: u-boot@lists.denx.de, jh80.chung@samsung.com Date: Mon, 21 Jan 2013 06:43:57 -0500 Message-id: <1358768638-14187-10-git-send-email-amarendra.xt@samsung.com> X-Mailer: git-send-email 1.8.0 In-reply-to: <1358768638-14187-1-git-send-email-amarendra.xt@samsung.com> References: <1358768638-14187-1-git-send-email-amarendra.xt@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrILMWRmVeSWpSXmKPExsWyRsSkSvey2t8Ag2kzOCze7u1kd2D0OHtn B2MAYxSXTUpqTmZZapG+XQJXxuMFT5kK/qhUzLtymKmB8ZxMFyMnh4SAicS+2yvZIGwxiQv3 1oPZQgJLGSWmnpHrYuQAq7kwqaKLkQsoPJ1RoulnPyuEs4xJ4uDBpewgRWwCqhK/FtuD9IoI GEhMf7KdFcRmFqiRmDz/FhOILSyQJbG56TYziM0CVP5u9kewGl4BT4kbd48yQ9wgJ/FhzyN2 EJsTKL7/7x5WiHs8JHYt+A+2V0LgOpvE662n2SEGCUh8m3yIBeJQWYlNB6DmSEocXHGDZQKj 8AJGhlWMoqkFyQXFSem5RnrFibnFpXnpesn5uZsYgQF4+t8z6R2MqxosDjEKcDAq8fAm9P0J EGJNLCuuzD3EKMHBrCTC+3MGUIg3JbGyKrUoP76oNCe1+BBjMtDyicxSosn5wOjIK4k3NDYx NzU2tTQyMjM1JU1YSZyX8dSTACGB9MSS1OzU1ILUIpgtTBycUg2MFif53GSTD5dvfqRl05Qe qbF6nYynhvspdcs3d6IXPb2d4/LqaOVSj08BrbenMGo+mPZZs/Ff3GxXi9WbZm/fYeBe+cMi dIq3v5KBrV1YFKdBauBknnxT5zkcE8tbXk0VaepRnTvZzUhkE2s/h4jT8hO71xeFizZcnmjq f0rGQHB2SdDduoVKLMUZiYZazEXFiQCZcJkyhAIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrIIsWRmVeSWpSXmKPExsVy+t9jQd1Lan8DDG5cMLR4u7eT3YHR4+yd HYwBjFENjDYZqYkpqUUKqXnJ+SmZeem2St7B8c7xpmYGhrqGlhbmSgp5ibmptkouPgG6bpk5 QGOVFMoSc0qBQgGJxcVK+naYJoSGuOlawDRG6PqGBMH1GBmggYQ1jBmPFzxlKvijUjHvymGm BsZzMl2MHBwSAiYSFyZVdDFyApliEhfurWfrYuTiEBKYzijR9LOfFcJZxiRx8OBSdpAGNgFV iV+L7UEaRAQMJKY/2c4KYjML1EhMnn+LCcQWFsiS2Nx0mxnEZgEqfzf7I1gNr4CnxI27R5kh lslJfNjziB3E5gSK7/+7B6xGSMBDYteC/6wTGHkXMDKsYhRNLUguKE5KzzXSK07MLS7NS9dL zs/dxAgO8GfSOxhXNVgcYhTgYFTi4U3o+xMgxJpYVlyZe4hRgoNZSYT35wygEG9KYmVValF+ fFFpTmrxIcZkoKsmMkuJJucDoy+vJN7Q2MTc1NjU0sTCxMySNGElcV7GU08ChATSE0tSs1NT C1KLYLYwcXBKNTB6f6wUVFV91ia558ehI0/r03s+JrE+bfb7J7tm21qjC8UzFTMcwzh8P7BM tX9WPL2Ka3Plz/wXMU8+1NuV9yxPEtTUWxLXwbXh8Opjr62bmKTDO65mLFM30hH+9mAtm2zP fLYTQs8tF7Cv7nDZsfnEpcjTVX5nmjzDj5Rej5Suf776c8p9jbdKLMUZiYZazEXFiQAso3Yo tAIAAA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Cc: patches@linaro.org, afleming@gmail.com, hs@denx.de Subject: [U-Boot] [PATCH V5 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). 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..d036d34 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 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