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fix(plat/st): apply security at the end of BL2

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Now that the DDR is mapped secured, the security settings (TZC400
firewall) have to be applied at the end of BL2 for the OP-TEE case.
This is required to avoid checskum computation error on U-Boot binary,
for which MMU and TZC400 would not be aligned.

Change-Id: I4a364f7117960e8fae1b579f341b9f140b766ea6
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
This commit is contained in:
Yann Gautier 2021-08-16 11:58:01 +02:00
parent 391828923f
commit 99080bd127
1 changed files with 5 additions and 2 deletions
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7
plat/st/stm32mp1/bl2_plat_setup.c
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@ -153,8 +153,6 @@ void bl2_platform_setup(void)
#ifdef AARCH32_SP_OPTEE
INFO("BL2 runs OP-TEE setup\n");
/* Initialize tzc400 after DDR initialization */
stm32mp1_security_setup();
#else
INFO("BL2 runs SP_MIN setup\n");
#endif
@ -384,4 +382,9 @@ int bl2_plat_handle_post_image_load(unsigned int image_id)
return err;
}
void bl2_el3_plat_prepare_exit(void)
{
stm32mp1_security_setup();
}
#endif