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GET /api/patches/1745889/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
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Vary: Accept

{
    "id": 1745889,
    "url": "http://patchwork.ozlabs.org/api/patches/1745889/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20230221201925.9644-21-pali@kernel.org/",
    "project": {
        "id": 18,
        "url": "http://patchwork.ozlabs.org/api/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": "<20230221201925.9644-21-pali@kernel.org>",
    "list_archive_url": null,
    "date": "2023-02-21T20:18:46",
    "name": "[RFC,u-boot-mvebu,20/59] cmd: mvebu/bubt: Add support for selecting eMMC HW partition",
    "commit_ref": "fc10a926ec43250914de6fd69e4258f39c79c8aa",
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "634a607938b56b609e3f1203f93c3129251304ea",
    "submitter": {
        "id": 78810,
        "url": "http://patchwork.ozlabs.org/api/people/78810/?format=api",
        "name": "Pali Rohár",
        "email": "pali@kernel.org"
    },
    "delegate": {
        "id": 1696,
        "url": "http://patchwork.ozlabs.org/api/users/1696/?format=api",
        "username": "stroese",
        "first_name": "Stefan",
        "last_name": "Roese",
        "email": "sr@denx.de"
    },
    "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20230221201925.9644-21-pali@kernel.org/mbox/",
    "series": [
        {
            "id": 343058,
            "url": "http://patchwork.ozlabs.org/api/series/343058/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=343058",
            "date": "2023-02-21T20:18:27",
            "name": "arm: mvebu: Various fixes",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/343058/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/1745889/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/1745889/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "From": "=?utf-8?q?Pali_Roh=C3=A1r?= <pali@kernel.org>",
        "To": "u-boot@lists.denx.de",
        "Cc": "Stefan Roese <sr@denx.de>, Tony Dinh <mibodhi@gmail.com>,\n Josua Mayer <josua@solid-run.com>",
        "Subject": "[PATCH RFC u-boot-mvebu 20/59] cmd: mvebu/bubt: Add support for\n selecting eMMC HW partition",
        "Date": "Tue, 21 Feb 2023 21:18:46 +0100",
        "Message-Id": "<20230221201925.9644-21-pali@kernel.org>",
        "X-Mailer": "git-send-email 2.20.1",
        "In-Reply-To": "<20230221201925.9644-1-pali@kernel.org>",
        "References": "<20230221201925.9644-1-pali@kernel.org>",
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        "List-Id": "U-Boot discussion <u-boot.lists.denx.de>",
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        "X-Virus-Status": "Clean"
    },
    "content": "Support for burning into the correct eMMC HW boot partition was broken and\nremoved in commit 96be2f072768 (\"mvebu: bubt: Drop dead code\"). Reimplement\nthis functionality and bring it back again.\n\nFixes: 96be2f072768 (\"mvebu: bubt: Drop dead code\")\nSigned-off-by: Pali Rohár <pali@kernel.org>\n---\n cmd/mvebu/bubt.c       | 53 ++++++++++++++++++++++++++++++++++++++----\n doc/mvebu/cmd/bubt.txt | 21 ++++++++++++-----\n 2 files changed, 63 insertions(+), 11 deletions(-)",
    "diff": "diff --git a/cmd/mvebu/bubt.c b/cmd/mvebu/bubt.c\nindex 2bcdf145f64a..4bad9a69527c 100644\n--- a/cmd/mvebu/bubt.c\n+++ b/cmd/mvebu/bubt.c\n@@ -189,6 +189,11 @@ static int mmc_burn_image(size_t image_size)\n #ifdef CONFIG_BLK\n \tstruct blk_desc *blk_desc;\n #endif\n+#ifdef CONFIG_SUPPORT_EMMC_BOOT\n+\tu8\t\tpart;\n+\tu8\t\torig_part;\n+#endif\n+\n \tmmc = find_mmc_device(mmc_dev_num);\n \tif (!mmc) {\n \t\tprintf(\"No SD/MMC/eMMC card found\\n\");\n@@ -202,6 +207,38 @@ static int mmc_burn_image(size_t image_size)\n \t\treturn err;\n \t}\n \n+#ifdef CONFIG_BLK\n+\tblk_desc = mmc_get_blk_desc(mmc);\n+\tif (!blk_desc) {\n+\t\tprintf(\"Error - failed to obtain block descriptor\\n\");\n+\t\treturn -ENODEV;\n+\t}\n+#endif\n+\n+#ifdef CONFIG_SUPPORT_EMMC_BOOT\n+#ifdef CONFIG_BLK\n+\torig_part = blk_desc->hwpart;\n+#else\n+\torig_part = mmc->block_dev.hwpart;\n+#endif\n+\n+\tpart = (mmc->part_config >> 3) & PART_ACCESS_MASK;\n+\n+\tif (part == 7)\n+\t\tpart = 0;\n+\n+#ifdef CONFIG_BLK\n+\terr = blk_dselect_hwpart(blk_desc, part);\n+#else\n+\terr = mmc_switch_part(mmc, part);\n+#endif\n+\n+\tif (err) {\n+\t\tprintf(\"Error - MMC partition switch failed\\n\");\n+\t\treturn err;\n+\t}\n+#endif\n+\n \t/* SD reserves LBA-0 for MBR and boots from LBA-1,\n \t * MMC/eMMC boots from LBA-0\n \t */\n@@ -211,11 +248,6 @@ static int mmc_burn_image(size_t image_size)\n \tif (image_size % mmc->write_bl_len)\n \t\tblk_count += 1;\n \n-\tblk_desc = mmc_get_blk_desc(mmc);\n-\tif (!blk_desc) {\n-\t\tprintf(\"Error - failed to obtain block descriptor\\n\");\n-\t\treturn -ENODEV;\n-\t}\n \tblk_written = blk_dwrite(blk_desc, start_lba, blk_count,\n \t\t\t\t (void *)get_load_addr());\n #else\n@@ -227,6 +259,17 @@ static int mmc_burn_image(size_t image_size)\n \t\t\t\t\t\t start_lba, blk_count,\n \t\t\t\t\t\t (void *)get_load_addr());\n #endif /* CONFIG_BLK */\n+\n+#ifdef CONFIG_SUPPORT_EMMC_BOOT\n+#ifdef CONFIG_BLK\n+\terr = blk_dselect_hwpart(blk_desc, orig_part);\n+#else\n+\terr = mmc_switch_part(mmc, orig_part);\n+#endif\n+\tif (err)\n+\t\tprintf(\"Error - MMC failed to switch back to original partition\\n\");\n+#endif\n+\n \tif (blk_written != blk_count) {\n \t\tprintf(\"Error - written %#lx blocks\\n\", blk_written);\n \t\treturn -ENOSPC;\ndiff --git a/doc/mvebu/cmd/bubt.txt b/doc/mvebu/cmd/bubt.txt\nindex 6051243f1165..1fe1f07dd187 100644\n--- a/doc/mvebu/cmd/bubt.txt\n+++ b/doc/mvebu/cmd/bubt.txt\n@@ -14,8 +14,7 @@ Examples:\n \n Notes:\n - For the TFTP interface set serverip and ipaddr.\n-- To burn image to SD/eMMC device, the target is defined\n-  by parameters CONFIG_SYS_MMC_ENV_DEV and CONFIG_SYS_MMC_ENV_PART.\n+- To burn image to SD/eMMC device, the target is defined by HW partition.\n \n Bubt command details (burn image step by-step)\n ----------------------------------------------\n@@ -40,10 +39,20 @@ Notes:\n   Number 0 is used for user data partition and should not be utilized for storing\n   boot images and U-Boot environment in RAW mode since it will break file system\n   structures usually located here.\n-  The default boot partition is BOOT0. It is selected by the following parameter:\n-  CONFIG_SYS_MMC_ENV_PART=1\n-  Valid values for this parameter are 1 for BOOT0 and 2 for BOOT1.\n-  Please never use partition number 0 here!\n+\n+  Currently configured boot partition can be printed by command:\n+  # mmc partconf 0\n+  (search for BOOT_PARTITION_ACCESS output, number 7 is user data)\n+\n+  Change it to BOOT0:\n+  # mmc partconf 0 0 1 1\n+\n+  Change it to BOOT1:\n+  # mmc partconf 0 0 2 2\n+\n+  Change it to user data:\n+  # mmc partconf 0 0 7 0\n+\n - The partition number is ignored if the target device is SD card.\n - The boot image offset starts at block 0 for eMMC and block 1 for SD devices.\n   The block 0 on SD devices is left for MBR storage.\n",
    "prefixes": [
        "RFC",
        "u-boot-mvebu",
        "20/59"
    ]
}