diff options
Diffstat (limited to 'board/st/common')
| -rw-r--r-- | board/st/common/Makefile | 1 | ||||
| -rw-r--r-- | board/st/common/stm32mp_fwu.c | 55 |
2 files changed, 56 insertions, 0 deletions
diff --git a/board/st/common/Makefile b/board/st/common/Makefile index 122b13c3aa8..36dfaddfa0e 100644 --- a/board/st/common/Makefile +++ b/board/st/common/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_PMIC_STPMIC1) += stpmic1.o ifeq ($(CONFIG_ARCH_STM32MP),y) obj-$(CONFIG_SET_DFU_ALT_INFO) += stm32mp_dfu.o obj-$(CONFIG_$(PHASE_)DFU_VIRT) += stm32mp_dfu_virt.o +obj-$(CONFIG_FWU_MULTI_BANK_UPDATE) += stm32mp_fwu.o endif obj-$(CONFIG_TYPEC_STUSB160X) += stusb160x.o diff --git a/board/st/common/stm32mp_fwu.c b/board/st/common/stm32mp_fwu.c new file mode 100644 index 00000000000..ac7ca6bdca2 --- /dev/null +++ b/board/st/common/stm32mp_fwu.c @@ -0,0 +1,55 @@ +// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause +/* + * Copyright (C) 2026 Amarula Solutions, Dario Binacchi <[email protected]> + */ + +#include <fwu.h> +#include <part_efi.h> +#include <asm/io.h> +/** + * fwu_plat_get_bootidx() - Get the value of the boot index + * @boot_idx: Boot index value + * + * Get the value of the bank(partition) from which the platform + * has booted. This value is passed to U-Boot from the earlier + * stage bootloader which loads and boots all the relevant + * firmware images + * + */ +void fwu_plat_get_bootidx(uint *boot_idx) +{ + *boot_idx = (readl(TAMP_FWU_BOOT_INFO_REG) >> + TAMP_FWU_BOOT_IDX_OFFSET) & TAMP_FWU_BOOT_IDX_MASK; +} + +int fwu_platform_hook(struct udevice *dev, struct fwu_data *data) +{ + uint boot_idx; + efi_guid_t boot_uuid, root_uuid; + const efi_guid_t boot_type_guid = PARTITION_XBOOTLDR; + const efi_guid_t root_type_guid = + PARTITION_LINUX_FILE_SYSTEM_DATA_GUID; + char uuidbuf[UUID_STR_LEN + 1]; + int retb, retr; + + fwu_plat_get_bootidx(&boot_idx); + + retb = fwu_mdata_get_image_guid(&boot_uuid, &boot_type_guid, boot_idx); + retr = fwu_mdata_get_image_guid(&root_uuid, &root_type_guid, boot_idx); + + if (!retb && !retr) { + uuid_bin_to_str(boot_uuid.b, uuidbuf, UUID_STR_FORMAT_GUID); + env_set("boot_partuuid", uuidbuf); + + uuid_bin_to_str(root_uuid.b, uuidbuf, UUID_STR_FORMAT_GUID); + env_set("root_partuuid", uuidbuf); + } else if (!retb && retr) { + log_warning("%s: found boot GUID but missing root GUID (%d)\n", + __func__, retr); + } else if (!retr && retb) { + log_warning("%s: found root GUID but missing boot GUID (%d)\n", + __func__, retb); + } + + return 0; +} |