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imx: hab: Increase CSF_SIZE for i.MX6 and i.MX7 devices

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In certain i.MX devices the encrypted boot image is failing to boot.

According to AN12056 "Encrypted Boot on HABv4 and CAAM Enabled Devices"
it's necessary to pad CSF to 0x2000 and append DEK blob.

In this case the total image size in boot data structure must cover the
entire binary otherwise the dek_blob won't be copied to memory and image
won't be decrypted.

Increase CSF_SIZE to 0x4000 to avoid such issue when booting encrypted
boot images.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
This commit is contained in:
Breno Matheus Lima 2019-04-26 02:56:48 +00:00 committed by Stefano Babic
parent 4721d7d3b4
commit 0633e13478
2 changed files with 2 additions and 2 deletions
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2
include/configs/mx6_common.h
View file

@ -59,7 +59,7 @@
/* Secure boot (HAB) support */
#ifdef CONFIG_SECURE_BOOT
#define CONFIG_CSF_SIZE 0x2000
#define CONFIG_CSF_SIZE 0x4000
#ifdef CONFIG_SPL_BUILD
#define CONFIG_SPL_DRIVERS_MISC_SUPPORT
#endif

2
include/configs/mx7_common.h
View file

@ -48,7 +48,7 @@
/* Secure boot (HAB) support */
#ifdef CONFIG_SECURE_BOOT
#define CONFIG_CSF_SIZE 0x2000
#define CONFIG_CSF_SIZE 0x4000
#ifdef CONFIG_SPL_BUILD
#define CONFIG_SPL_DRIVERS_MISC_SUPPORT
#endif