diff options
| author | Sughosh Ganu <sughosh.ganu@linaro.org> | 2022-10-21 18:16:00 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2022-10-31 14:47:32 -0400 |
| commit | 95b5a7de30f6c2f6c38ac4919442c7d8d6fb86ce (patch) | |
| tree | b4d6f06af81e5820699f62594f191c6da1eaaf5e /arch/arm/mach-stm32mp/include/mach/stm32.h | |
| parent | 7d6e2c54b7dd057f50bf0116c9e803e214dbe74c (diff) | |
FWU: STM32MP1: Add support to read boot index from backup register
The FWU Multi Bank Update feature allows the platform to boot the
firmware images from one of the partitions(banks). The first stage
bootloader(fsbl) passes the value of the boot index, i.e. the bank
from which the firmware images were booted from to U-Boot. On the
STM32MP157C-DK2 board, this value is passed through one of the SoC's
backup register. Add a function to read the boot index value from the
backup register.
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Diffstat (limited to 'arch/arm/mach-stm32mp/include/mach/stm32.h')
| -rw-r--r-- | arch/arm/mach-stm32mp/include/mach/stm32.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/mach-stm32mp/include/mach/stm32.h b/arch/arm/mach-stm32mp/include/mach/stm32.h index c70375a723c..c85ae6a34ee 100644 --- a/arch/arm/mach-stm32mp/include/mach/stm32.h +++ b/arch/arm/mach-stm32mp/include/mach/stm32.h @@ -112,11 +112,16 @@ enum boot_device { #ifdef CONFIG_STM32MP15x #define TAMP_BACKUP_MAGIC_NUMBER TAMP_BACKUP_REGISTER(4) #define TAMP_BACKUP_BRANCH_ADDRESS TAMP_BACKUP_REGISTER(5) +#define TAMP_FWU_BOOT_INFO_REG TAMP_BACKUP_REGISTER(10) #define TAMP_COPRO_RSC_TBL_ADDRESS TAMP_BACKUP_REGISTER(17) #define TAMP_COPRO_STATE TAMP_BACKUP_REGISTER(18) #define TAMP_BOOT_CONTEXT TAMP_BACKUP_REGISTER(20) #define TAMP_BOOTCOUNT TAMP_BACKUP_REGISTER(21) +#define TAMP_FWU_BOOT_IDX_MASK GENMASK(3, 0) + +#define TAMP_FWU_BOOT_IDX_OFFSET 0 + #define TAMP_COPRO_STATE_OFF 0 #define TAMP_COPRO_STATE_INIT 1 #define TAMP_COPRO_STATE_CRUN 2 |