{"id":2223616,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2223616/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/patch/20260415183250.3031030-8-dario.binacchi@amarulasolutions.com/","project":{"id":18,"url":"http://patchwork.ozlabs.org/api/1.1/projects/18/?format=json","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},"msgid":"<20260415183250.3031030-8-dario.binacchi@amarulasolutions.com>","date":"2026-04-15T18:31:34","name":"[v3,7/7] board: st: stm32mp25: support dynamic A/B bank bootup","commit_ref":null,"pull_url":null,"state":"changes-requested","archived":true,"hash":"6670d344d333e5eaf769fc4c6a02ed3a9b19f034","submitter":{"id":83038,"url":"http://patchwork.ozlabs.org/api/1.1/people/83038/?format=json","name":"Dario Binacchi","email":"dario.binacchi@amarulasolutions.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/uboot/patch/20260415183250.3031030-8-dario.binacchi@amarulasolutions.com/mbox/","series":[{"id":500027,"url":"http://patchwork.ozlabs.org/api/1.1/series/500027/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/list/?series=500027","date":"2026-04-15T18:31:27","name":"Support metadata-driven A/B boot for STM32MP25","version":3,"mbox":"http://patchwork.ozlabs.org/series/500027/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2223616/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2223616/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=amarulasolutions.com header.i=@amarulasolutions.com\n header.a=rsa-sha256 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+0200","Message-ID":"<20260415183250.3031030-8-dario.binacchi@amarulasolutions.com>","X-Mailer":"git-send-email 2.43.0","In-Reply-To":"<20260415183250.3031030-1-dario.binacchi@amarulasolutions.com>","References":"<20260415183250.3031030-1-dario.binacchi@amarulasolutions.com>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-BeenThere":"u-boot@lists.denx.de","X-Mailman-Version":"2.1.39","Precedence":"list","List-Id":"U-Boot discussion ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"u-boot-bounces@lists.denx.de","Sender":"\"U-Boot\" ","X-Virus-Scanned":"clamav-milter 0.103.8 at phobos.denx.de","X-Virus-Status":"Clean"},"content":"Enable automatic detection of the active A/B bank by retrieving\npartition GUIDs from FWU metadata.\n\nThis ensures the system correctly identifies the bootable partitions\neven in multi-bank scenarios, falling back to a standard bootable flag\nscan if the UUIDs are missing.\n\nTo enable A/B bank bootup on stm32mp25 boards, add the following Kconfig\noptions to the stm32mp25_defconfig:\n\n CONFIG_FWU_MULTI_BANK_UPDATE=y\n CONFIG_FWU_MDATA=y\n CONFIG_FWU_NUM_BANKS=2\n CONFIG_FWU_NUM_IMAGES_PER_BANK=3\n CONFIG_CMD_FWU_METADATA=y\n CONFIG_FWU_MDATA_V2=y\n\nSigned-off-by: Dario Binacchi \nReviewed-by: Simon Glass \n\n---\n\nChanges in v3:\n- Add Reviewed-by tag of Simon Glass.\n\nChanges in v2:\n- Add links to the XBOOTLDR specification in the commit message of patch\n 1/7 lib: uuid: add partition type GUID for extended bootloader.\n- Update help for 'part start', 'part size' to mention UUID.\n- Add kerneldoc comment for fwu_mdata_get_image_guid().\n- Pass efi_guid_t by pointer in fwu_mdata_get_image_guid().\n- Add patches:\n 5/7 test: cmd: part: add UUID lookup tests\n 3/7 test: cmd: add unit tests for part command\n 2/7 test: dm: part: add test for part_get_info_by_uuid\n- Pass efi_guid_t by pointer in fwu_mdata_get_image_guid() calls.\n\n board/st/stm32mp2/stm32mp2.c | 32 +++++++++++++++++++++++++++\n include/configs/stm32mp25_st_common.h | 15 +++++++++++++\n 2 files changed, 47 insertions(+)","diff":"diff --git a/board/st/stm32mp2/stm32mp2.c b/board/st/stm32mp2/stm32mp2.c\nindex 43bc583378e6..5cbbbc322a3a 100644\n--- a/board/st/stm32mp2/stm32mp2.c\n+++ b/board/st/stm32mp2/stm32mp2.c\n@@ -208,4 +208,36 @@ void fwu_plat_get_bootidx(uint *boot_idx)\n \t*boot_idx = (readl(TAMP_FWU_BOOT_INFO_REG) >>\n \t\t TAMP_FWU_BOOT_IDX_OFFSET) & TAMP_FWU_BOOT_IDX_MASK;\n }\n+\n+int fwu_platform_hook(struct udevice *dev, struct fwu_data *data)\n+{\n+\tuint boot_idx;\n+\tefi_guid_t boot_uuid, root_uuid;\n+\tconst efi_guid_t boot_type_guid = PARTITION_XBOOTLDR;\n+\tconst efi_guid_t root_type_guid =\n+\t\tPARTITION_LINUX_FILE_SYSTEM_DATA_GUID;\n+\tchar uuidbuf[UUID_STR_LEN + 1];\n+\tint retb, retr;\n+\n+\tfwu_plat_get_bootidx(&boot_idx);\n+\n+\tretb = fwu_mdata_get_image_guid(&boot_uuid, &boot_type_guid, boot_idx);\n+\tretr = fwu_mdata_get_image_guid(&root_uuid, &root_type_guid, boot_idx);\n+\n+\tif (!retb && !retr) {\n+\t\tuuid_bin_to_str(boot_uuid.b, uuidbuf, UUID_STR_FORMAT_GUID);\n+\t\tenv_set(\"boot_partuuid\", uuidbuf);\n+\n+\t\tuuid_bin_to_str(root_uuid.b, uuidbuf, UUID_STR_FORMAT_GUID);\n+\t\tenv_set(\"root_partuuid\", uuidbuf);\n+\t} else if (!retb && retr) {\n+\t\tlog_warning(\"%s: found boot GUID but missing root GUID (%d)\\n\",\n+\t\t\t __func__, retr);\n+\t} else if (!retr && retb) {\n+\t\tlog_warning(\"%s: found root GUID but missing boot GUID (%d)\\n\",\n+\t\t\t __func__, retb);\n+\t}\n+\n+\treturn 0;\n+}\n #endif /* CONFIG_FWU_MULTI_BANK_UPDATE */\ndiff --git a/include/configs/stm32mp25_st_common.h b/include/configs/stm32mp25_st_common.h\nindex cb679eb1be22..0b0267ae99b0 100644\n--- a/include/configs/stm32mp25_st_common.h\n+++ b/include/configs/stm32mp25_st_common.h\n@@ -8,7 +8,22 @@\n #ifndef __CONFIG_STM32MP25_ST_COMMON_H__\n #define __CONFIG_STM32MP25_ST_COMMON_H__\n \n+#ifdef CONFIG_FWU_MULTI_BANK_UPDATE\n+#define SCAN_DEV_FOR_BOOT_PARTS \\\n+\t\"setenv devplist; \" \\\n+\t\"env exists boot_partuuid && \" \\\n+\t\t\"part number ${devtype} ${devnum} ${boot_partuuid} devplist; \" \\\n+\t\"env exists devplist || \" \\\n+\t\t\"part list ${devtype} ${devnum} -bootable devplist; \"\n+\n+#define ST_STM32MP25_FWU_ENV \\\n+\t\"altbootcmd=${bootcmd}\\0\"\n+#else\n+#define ST_STM32MP25_FWU_ENV\n+#endif\n+\n #define STM32MP_BOARD_EXTRA_ENV \\\n+\tST_STM32MP25_FWU_ENV \\\n \t\"usb_pgood_delay=2000\\0\" \\\n \t\"console=ttySTM0\\0\"\n \n","prefixes":["v3","7/7"]}