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GET /api/1.2/patches/2222628/?format=api
{ "id": 2222628, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2222628/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260413081322.2226374-1-ravi@prevas.dk/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/1.2/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260413081322.2226374-1-ravi@prevas.dk>", "list_archive_url": null, "date": "2026-04-13T08:13:22", "name": "cmd: mmc: allow 'mmc rst-function' to show the current value", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "38123101a2b2537d891df3782956e7eeeddbb84e", "submitter": { "id": 89443, "url": "http://patchwork.ozlabs.org/api/1.2/people/89443/?format=api", "name": "Rasmus Villemoes", "email": "ravi@prevas.dk" }, "delegate": { "id": 12423, "url": "http://patchwork.ozlabs.org/api/1.2/users/12423/?format=api", "username": "Jaehoon", "first_name": "Jaehoon", "last_name": "Chung", "email": "jh80.chung@samsung.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260413081322.2226374-1-ravi@prevas.dk/mbox/", "series": [ { "id": 499661, "url": "http://patchwork.ozlabs.org/api/1.2/series/499661/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=499661", "date": "2026-04-13T08:13:22", "name": "cmd: mmc: allow 'mmc rst-function' to show the current value", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499661/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2222628/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2222628/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": 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"u-boot@lists.denx.de", "Cc": "Peng Fan <peng.fan@nxp.com>, Tom Rini <trini@konsulko.com>,\n Jaehoon Chung <jh80.chung@samsung.com>, Rasmus Villemoes <ravi@prevas.dk>", "Subject": "[PATCH] cmd: mmc: allow 'mmc rst-function' to show the current value", "Date": "Mon, 13 Apr 2026 10:13:22 +0200", "Message-ID": "<20260413081322.2226374-1-ravi@prevas.dk>", "X-Mailer": "git-send-email 2.53.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-ClientProxiedBy": "MM0P280CA0085.SWEP280.PROD.OUTLOOK.COM (2603:10a6:190:8::7)\n To AS5PR10MB8243.EURPRD10.PROD.OUTLOOK.COM\n (2603:10a6:20b:681::18)", "MIME-Version": "1.0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "AS5PR10MB8243:EE_|DB4PR10MB6166:EE_", "X-MS-Office365-Filtering-Correlation-Id": "d1d18b30-44c8-49ee-a0f5-08de99348906", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;\n 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"X-OriginatorOrg": "prevas.dk", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n d1d18b30-44c8-49ee-a0f5-08de99348906", "X-MS-Exchange-CrossTenant-AuthSource": "AS5PR10MB8243.EURPRD10.PROD.OUTLOOK.COM", "X-MS-Exchange-CrossTenant-AuthAs": "Internal", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "13 Apr 2026 08:13:25.1566 (UTC)", "X-MS-Exchange-CrossTenant-FromEntityHeader": "Hosted", "X-MS-Exchange-CrossTenant-Id": "d350cf71-778d-4780-88f5-071a4cb1ed61", "X-MS-Exchange-CrossTenant-MailboxType": "HOSTED", "X-MS-Exchange-CrossTenant-UserPrincipalName": "\n USQU8EIAhyqpvqisYEaTlIaL3zjrXw0j2/qgEhAPHPOP7ZwlOcVTFdcHQCXkGHxqbVWDgKEyPaLKmHan8oiMZOPK0sE7+wxQGEsnPGEDoxk=", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "DB4PR10MB6166", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.39", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.103.8 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "Extend the 'mmc rst-function' subcommand so that lacking a value to\nset, it simply prints the current value, and its interpretation.\n\nSigned-off-by: Rasmus Villemoes <ravi@prevas.dk>\n---\n cmd/mmc.c | 36 +++++++++++++++++++++++++++---------\n doc/usage/cmd/mmc.rst | 4 ++--\n 2 files changed, 29 insertions(+), 11 deletions(-)", "diff": "diff --git a/cmd/mmc.c b/cmd/mmc.c\nindex 81b1ca4ad84..f217dfdacaa 100644\n--- a/cmd/mmc.c\n+++ b/cmd/mmc.c\n@@ -1012,16 +1012,10 @@ static int do_mmc_rst_func(struct cmd_tbl *cmdtp, int flag,\n \t * The only valid values are 0x0, 0x1 and 0x2 and writing\n \t * a value of 0x1 or 0x2 sets the value permanently.\n \t */\n-\tif (argc != 3)\n+\tif (argc < 2 || argc > 3)\n \t\treturn CMD_RET_USAGE;\n \n \tdev = dectoul(argv[1], NULL);\n-\tenable = dectoul(argv[2], NULL);\n-\n-\tif (enable > 2) {\n-\t\tputs(\"Invalid RST_n_ENABLE value\\n\");\n-\t\treturn CMD_RET_USAGE;\n-\t}\n \n \tmmc = init_mmc_device(dev, false);\n \tif (!mmc)\n@@ -1032,6 +1026,30 @@ static int do_mmc_rst_func(struct cmd_tbl *cmdtp, int flag,\n \t\treturn CMD_RET_FAILURE;\n \t}\n \n+\tif (argc == 2) {\n+\t\tALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);\n+\t\tret = mmc_send_ext_csd(mmc, ext_csd);\n+\t\tif (ret)\n+\t\t\treturn CMD_RET_FAILURE;\n+\n+\t\tprintf(\"RST_n_FUNCTION: 0x%x \", ext_csd[EXT_CSD_RST_N_FUNCTION]);\n+\t\tswitch (ext_csd[EXT_CSD_RST_N_FUNCTION]) {\n+\t\tcase 0x0: puts(\"(temporarily disabled)\\n\"); break;\n+\t\tcase 0x1: puts(\"(permanently enabled)\\n\"); break;\n+\t\tcase 0x2: puts(\"(permanently disabled)\\n\"); break;\n+\t\tdefault: puts(\"(unknown)\\n\");\n+\t\t}\n+\n+\t\treturn CMD_RET_SUCCESS;\n+\t}\n+\n+\tenable = dectoul(argv[2], NULL);\n+\n+\tif (enable > 2) {\n+\t\tputs(\"Invalid RST_n_ENABLE value\\n\");\n+\t\treturn CMD_RET_USAGE;\n+\t}\n+\n \tret = mmc_set_rst_n_function(mmc, enable);\n \tif (ret != 0)\n \t\treturn CMD_RET_FAILURE;\n@@ -1344,8 +1362,8 @@ U_BOOT_CMD(\n \t\"mmc partconf <dev> [[varname] | [<boot_ack> <boot_partition> <partition_access>]]\\n\"\n \t\" - Show or change the bits of the PARTITION_CONFIG field of the specified device\\n\"\n \t\" If showing the bits, optionally store the boot_partition field into varname\\n\"\n-\t\"mmc rst-function <dev> <value>\\n\"\n-\t\" - Change the RST_n_FUNCTION field of the specified device\\n\"\n+\t\"mmc rst-function <dev> [<value>]\\n\"\n+\t\" - Show or change the RST_n_FUNCTION field of the specified device\\n\"\n \t\" WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\\n\"\n #endif\n #if CONFIG_IS_ENABLED(CMD_MMC_RPMB)\ndiff --git a/doc/usage/cmd/mmc.rst b/doc/usage/cmd/mmc.rst\nindex 55391fda24c..c6ab334b3d4 100644\n--- a/doc/usage/cmd/mmc.rst\n+++ b/doc/usage/cmd/mmc.rst\n@@ -24,7 +24,7 @@ Synopsis\n mmc bootbus <dev> <boot_bus_width> <reset_boot_bus_width> <boot_mode>\n mmc bootpart-resize <dev> <dev part size MB> <RPMB part size MB>\n mmc partconf <dev> [[varname] | [<boot_ack> <boot_partition> <partition_access>]]\n- mmc rst-function <dev> <value>\n+ mmc rst-function <dev> [<value>]\n mmc reg read <reg> <offset> [env]\n \n Description\n@@ -178,7 +178,7 @@ The 'mmc bootpart-resize' command changes sizes of boot and RPMB partitions.\n RPMB part size MB\n target size of RPMB partition\n \n-The 'mmc rst-function' command changes the RST_n_FUNCTION field.\n+The 'mmc rst-function' command shows or changes the RST_n_FUNCTION field.\n **WARNING** : This is a write-once field. (*Refer to eMMC specification*)\n \n value\n", "prefixes": [] }