diff options
| author | Igor Opaniuk <igor.opaniuk@foundries.io> | 2023-11-06 11:41:52 +0100 |
|---|---|---|
| committer | Patrice Chotard <patrice.chotard@foss.st.com> | 2023-11-10 13:34:10 +0100 |
| commit | c205fe979ebc1961cf28555c00e24a9004761366 (patch) | |
| tree | a401e196a6a67fd8fc65c844c64c61088fd121ce /arch/arm/mach-stm32mp/include/mach/stm32.h | |
| parent | 6d84f6bc75a30214534966efae022cfbb9e8097b (diff) | |
stm32mp1: read auth stats and boot_partition from tamp
Obtain from TAMP backup register information about image authorization
status and partition id used for booting. Store this info in
environmental variables ("boot_auth" and "boot_part" correspondingly).
Image authorization supported values:
0x0 - No authentication done
0x1 - Authentication done and failed
0x2 - Authentication done and succeeded
These values are stored to TAMP backup register by Trusted Firmware-A [1].
Testing:
STM32MP> print boot_part
boot_part=1
STM32MP> print boot_auth
boot_auth=2
[1] https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/commit/?h=refs/heads/integration&id=ab2b325c1ab895e626d4e11a9f26b9e7c968f8d8
Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>
Co-developed-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Diffstat (limited to 'arch/arm/mach-stm32mp/include/mach/stm32.h')
| -rw-r--r-- | arch/arm/mach-stm32mp/include/mach/stm32.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-stm32mp/include/mach/stm32.h b/arch/arm/mach-stm32mp/include/mach/stm32.h index 1cdc5e3b18..ac0deced67 100644 --- a/arch/arm/mach-stm32mp/include/mach/stm32.h +++ b/arch/arm/mach-stm32mp/include/mach/stm32.h @@ -139,8 +139,12 @@ enum boot_device { #define TAMP_BOOT_MODE_MASK GENMASK(15, 8) #define TAMP_BOOT_MODE_SHIFT 8 +#define TAMP_BOOT_AUTH_MASK GENMASK(23, 16) +#define TAMP_BOOT_AUTH_SHIFT 16 #define TAMP_BOOT_DEVICE_MASK GENMASK(7, 4) #define TAMP_BOOT_INSTANCE_MASK GENMASK(3, 0) +#define TAMP_BOOT_AUTH_ST_MASK GENMASK(7, 4) +#define TAMP_BOOT_PARTITION_MASK GENMASK(3, 0) #define TAMP_BOOT_FORCED_MASK GENMASK(7, 0) enum forced_boot_mode { |