diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2019-04-18 17:32:45 +0200 |
|---|---|---|
| committer | Patrice Chotard <patrice.chotard@st.com> | 2019-05-23 11:36:47 +0200 |
| commit | 3419982bc39f667a4b364fad6a36c1b5e7e9115b (patch) | |
| tree | 78d00623c61a2db869c8b71704df1da8e90c1085 /arch/arm/mach-stm32mp | |
| parent | 8099e3db6092ab122bdd50272e9fb4a2a931c327 (diff) | |
stm32mp1: add bootcount support
Activate bootcount and use TAMP register to store the count value.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Diffstat (limited to 'arch/arm/mach-stm32mp')
| -rw-r--r-- | arch/arm/mach-stm32mp/Kconfig | 11 | ||||
| -rw-r--r-- | arch/arm/mach-stm32mp/include/mach/stm32.h | 1 |
2 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-stm32mp/Kconfig b/arch/arm/mach-stm32mp/Kconfig index 26dace1085..c984616961 100644 --- a/arch/arm/mach-stm32mp/Kconfig +++ b/arch/arm/mach-stm32mp/Kconfig @@ -39,6 +39,8 @@ config TARGET_STM32MP1 select STM32_RCC select STM32_RESET select SYS_ARCH_TIMER + imply BOOTCOUNT_LIMIT + imply CMD_BOOTCOUNT imply SYSRESET_PSCI if STM32MP1_TRUSTED imply SYSRESET_SYSCON if !STM32MP1_TRUSTED help @@ -76,6 +78,15 @@ config SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_MMC2 Partition on the second MMC to load U-Boot from when the MMC is being used in raw mode +if BOOTCOUNT_LIMIT +config SYS_BOOTCOUNT_SINGLEWORD + default y + +# TAMP_BOOTCOUNT = TAMP_BACKUP_REGISTER(21) +config SYS_BOOTCOUNT_ADDR + default 0x5C00A154 +endif + if DEBUG_UART config DEBUG_UART_BOARD_INIT diff --git a/arch/arm/mach-stm32mp/include/mach/stm32.h b/arch/arm/mach-stm32mp/include/mach/stm32.h index c526c88e3e..6795352044 100644 --- a/arch/arm/mach-stm32mp/include/mach/stm32.h +++ b/arch/arm/mach-stm32mp/include/mach/stm32.h @@ -88,6 +88,7 @@ enum boot_device { #define TAMP_BACKUP_MAGIC_NUMBER TAMP_BACKUP_REGISTER(4) #define TAMP_BACKUP_BRANCH_ADDRESS TAMP_BACKUP_REGISTER(5) #define TAMP_BOOT_CONTEXT TAMP_BACKUP_REGISTER(20) +#define TAMP_BOOTCOUNT TAMP_BACKUP_REGISTER(21) #define TAMP_BOOT_MODE_MASK GENMASK(15, 8) #define TAMP_BOOT_MODE_SHIFT 8 |