diff options
Diffstat (limited to 'arch/arm/mach-stm32mp/cpu.c')
| -rw-r--r-- | arch/arm/mach-stm32mp/cpu.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/mach-stm32mp/cpu.c b/arch/arm/mach-stm32mp/cpu.c index bab318875c..55574fd4be 100644 --- a/arch/arm/mach-stm32mp/cpu.c +++ b/arch/arm/mach-stm32mp/cpu.c @@ -40,6 +40,13 @@ u32 get_bootmode(void) TAMP_BOOT_MODE_SHIFT; } +u32 get_bootauth(void) +{ + /* read boot auth status and partition from TAMP backup register */ + return (readl(TAMP_BOOT_CONTEXT) & TAMP_BOOT_AUTH_MASK) >> + TAMP_BOOT_AUTH_SHIFT; +} + /* * weak function overidde: set the DDR/SYSRAM executable before to enable the * MMU and configure DACR, for early early_enable_caches (SPL or pre-reloc) @@ -371,8 +378,24 @@ __weak void stm32mp_misc_init(void) { } +static int setup_boot_auth_info(void) +{ + char buf[10]; + u32 bootauth = get_bootauth(); + + snprintf(buf, sizeof(buf), "%d", bootauth >> 4); + env_set("boot_auth", buf); + + snprintf(buf, sizeof(buf), "%d", bootauth & + (u32)TAMP_BOOT_PARTITION_MASK); + env_set("boot_part", buf); + + return 0; +} + int arch_misc_init(void) { + setup_boot_auth_info(); setup_boot_mode(); setup_mac_address(); setup_serial_number(); |