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The expected sequence to close the device
1/ Load key in DDR with any supported load command
2/ Update OTP with key: STM32MP> stm32key read <addr>
At this point the device is able to perform image authentication but
non-authenticated images can still be used and executed.
So it is the last moment to test boot with signed binary and
check that the ROM code accepts them.
3/ Close the device: only signed binary will be accepted !!
STM32MP> stm32key close
Warning: Programming these OTP is an irreversible operation!
This may brick your system if the HASH of key is invalid
This command should be deactivated by default in real product.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
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|---|---|---|
| .. | ||
| cmd_stm32prog | ||
| include/mach | ||
| boot_params.c | ||
| bsec.c | ||
| cmd_stm32key.c | ||
| config.mk | ||
| cpu.c | ||
| dram_init.c | ||
| fdt.c | ||
| Kconfig | ||
| Makefile | ||
| psci.c | ||
| pwr_regulator.c | ||
| spl.c | ||
| syscon.c | ||