Skip to content

Support metadata-driven A/B boot for STM32MP2 #13

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
passgat wants to merge 2 commits into
base: v2.10-stm32mp
Choose a base branch
from
Open

Support metadata-driven A/B boot for STM32MP2 #13

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
5f00cf3
feat(fwu): add Linux FS and XBOOTLDR GUIDs
passgat Mar 9, 2026
bcf0d3c
feat(stm32mp2): add IO policies for BootFS and RootFS
passgat Mar 9, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 8 additions & 0 deletions include/drivers/partition/efi.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,14 @@ static inline void *guidcpy(void *dst, const void *src)
EFI_GUID(0xF469F981U, 0x5985U, 0x4206U, \
0x8FU, 0xB3U, 0x83U, 0x99U, 0x56U, 0x03U, 0x5AU, 0x65U)

#define LINUX_FILE_SYSTEM_DATA_GUID \
EFI_GUID(0x0FC63DAFU, 0x8483U, 0x4772U, \
0x8EU, 0x79U, 0x3DU, 0x69U, 0xD8U, 0x47U, 0x7DU, 0xE4U)

#define XBOOTLDR_GUID \
EFI_GUID(0xBC13C2FFU, 0x59E6U, 0x4262U, \
0xA3U, 0x52U, 0xB2U, 0x75U, 0xFDU, 0x6FU, 0x71U, 0x72U)

#define NULL_GUID \
EFI_GUID(0x00000000U, 0x0000U, 0x0000U, 0x00U, 0x00U, \
0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U)
Expand Down
20 changes: 20 additions & 0 deletions plat/st/common/stm32mp_fconf_io.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,14 @@ static io_block_spec_t metadata_block_spec = {
.offset = 0, /* To be filled at runtime */
.length = 0, /* To be filled at runtime */
};
static io_block_spec_t bootfs_block_spec = {
.offset = 0, /* To be filled at runtime */
.length = 0, /* To be filled at runtime */
};
static io_block_spec_t rootfs_block_spec = {
.offset = 0, /* To be filled at runtime */
.length = 0, /* To be filled at runtime */
};
#endif

/* By default, STM32 platforms load images from the FIP */
Expand Down Expand Up @@ -71,6 +79,18 @@ struct plat_io_policy policies[MAX_NUMBER_IDS] = {
.img_type_guid = NULL_GUID,
.check = open_storage
},
[FWU_BOOTFS_ID] = {
.dev_handle = &storage_dev_handle,
.image_spec = (uintptr_t)&bootfs_block_spec,
.img_type_guid = XBOOTLDR_GUID,
.check = open_storage
},
[FWU_ROOTFS_ID] = {
.dev_handle = &storage_dev_handle,
.image_spec = (uintptr_t)&rootfs_block_spec,
.img_type_guid = LINUX_FILE_SYSTEM_DATA_GUID,
.check = open_storage
},
#endif /* PSA_FWU_SUPPORT */
};

Expand Down
8 changes: 6 additions & 2 deletions plat/st/stm32mp2/include/plat_tbbr_img_def.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -42,12 +42,16 @@

#if STM32MP_DDR_FIP_IO_STORAGE
#define DDR_FW_ID U(26)
#define FWU_BOOTFS_ID U(27)
#define FWU_ROOTFS_ID U(28)
/* Increase the MAX_NUMBER_IDS to match the authentication pool required */
#define MAX_NUMBER_IDS U(27)
#define MAX_NUMBER_IDS U(29)

#else
/* Increase the MAX_NUMBER_IDS to match the authentication pool required */
#define MAX_NUMBER_IDS U(26)
#define FWU_BOOTFS_ID U(26)
#define FWU_ROOTFS_ID U(27)
#define MAX_NUMBER_IDS U(28)

#endif

Expand Down