diff options
| author | Patrick Delaunay <patrick.delaunay@foss.st.com> | 2024-03-20 15:51:08 +0100 |
|---|---|---|
| committer | Patrice Chotard <patrice.chotard@foss.st.com> | 2025-04-25 16:00:23 +0200 |
| commit | 6c66779549bb90ed086c7d4d5d869d739722cce4 (patch) | |
| tree | 545829b7ff1c5baebe25edcbac69a81a35a4e611 | |
| parent | c3bf98f73d19704d5a9ab6c7538f23dc0f73cc3d (diff) | |
arm: stm32mp: add helper function stm32mp_is_closed()
Add the helper function stm32mp_is_closed() to check the "closed" state in
product life cycle, when product secrets have been provisioned into the
device, by "secure secret provisioning" tools (SSP) for example.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
| -rw-r--r-- | arch/arm/mach-stm32mp/cmd_stm32key.c | 22 | ||||
| -rw-r--r-- | arch/arm/mach-stm32mp/include/mach/sys_proto.h | 7 |
2 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-stm32mp/cmd_stm32key.c b/arch/arm/mach-stm32mp/cmd_stm32key.c index d6bf72d8e32..6bfa67859e1 100644 --- a/arch/arm/mach-stm32mp/cmd_stm32key.c +++ b/arch/arm/mach-stm32mp/cmd_stm32key.c @@ -618,3 +618,25 @@ U_BOOT_CMD_WITH_SUBCMDS(stm32key, "Manage key on STM32", stm32key_help_text, U_BOOT_SUBCMD_MKENT(read, 2, 0, do_stm32key_read), U_BOOT_SUBCMD_MKENT(fuse, 3, 0, do_stm32key_fuse), U_BOOT_SUBCMD_MKENT(close, 2, 0, do_stm32key_close)); + +/* + * Check the "closed" state in product life cycle, when product secrets have + * been provisioned into the device, by SSP tools for example. + * On closed devices, authentication is mandatory. + */ +bool stm32mp_is_closed(void) +{ + struct udevice *dev; + bool closed; + int ret; + + ret = get_misc_dev(&dev); + if (ret) + return false; + + ret = read_close_status(dev, false, &closed); + if (ret) + return false; + + return closed; +} diff --git a/arch/arm/mach-stm32mp/include/mach/sys_proto.h b/arch/arm/mach-stm32mp/include/mach/sys_proto.h index bf1c39742c1..19073668497 100644 --- a/arch/arm/mach-stm32mp/include/mach/sys_proto.h +++ b/arch/arm/mach-stm32mp/include/mach/sys_proto.h @@ -120,3 +120,10 @@ u32 get_otp(int index, int shift, int mask); uintptr_t get_stm32mp_rom_api_table(void); uintptr_t get_stm32mp_bl2_dtb(void); + +/* helper function: check "closed" state in product "Life Cycle" */ +#ifdef CONFIG_CMD_STM32KEY +bool stm32mp_is_closed(void); +#else +static inline bool stm32mp_is_closed(void) { return false; } +#endif |