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| author | Aneesh Bansal <aneesh.bansal@nxp.com> | 2016-01-22 16:37:26 +0530 |
|---|---|---|
| committer | York Sun <york.sun@nxp.com> | 2016-01-27 08:12:49 -0800 |
| commit | d041288586b05164c84794a5956ddc5fb8939115 (patch) | |
| tree | 8498d20c471b0fec63aa95a1250b0e1d08d35130 /board/freescale/common | |
| parent | 0a6b2714adfffce6a1497bd2ed6cbf4f7b4b0236 (diff) | |
| download | u-boot-imx-d041288586b05164c84794a5956ddc5fb8939115.zip u-boot-imx-d041288586b05164c84794a5956ddc5fb8939115.tar.gz u-boot-imx-d041288586b05164c84794a5956ddc5fb8939115.tar.bz2 | |
secure_boot: enable chain of trust for ARM platforms
Chain of Trust is enabled for ARM platforms (LS1021 and LS1043).
In board_late_init(), fsl_setenv_chain_of_trust() is called which
will perform the following:
- If boot mode is non-secure, return (No Change)
- If boot mode is secure, set the following environmet variables:
bootdelay = 0 (To disable Boot Prompt)
bootcmd = CONFIG_CHAIN_BOOT_CMD (Validate and execute Boot script)
Signed-off-by: Aneesh Bansal <aneesh.bansal@nxp.com>
Acked-by: Ruchika Gupta <ruchika.gupta@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'board/freescale/common')
| -rw-r--r-- | board/freescale/common/Makefile | 1 | ||||
| -rw-r--r-- | board/freescale/common/fsl_chain_of_trust.c | 17 |
2 files changed, 18 insertions, 0 deletions
diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile index 51d2814..be114ce 100644 --- a/board/freescale/common/Makefile +++ b/board/freescale/common/Makefile @@ -76,5 +76,6 @@ obj-$(CONFIG_LAYERSCAPE_NS_ACCESS) += ns_access.o ifdef CONFIG_SECURE_BOOT obj-$(CONFIG_CMD_ESBC_VALIDATE) += fsl_validate.o cmd_esbc_validate.o endif +obj-$(CONFIG_CHAIN_OF_TRUST) += fsl_chain_of_trust.o endif diff --git a/board/freescale/common/fsl_chain_of_trust.c b/board/freescale/common/fsl_chain_of_trust.c index ff67bd7..ecfcc82 100644 --- a/board/freescale/common/fsl_chain_of_trust.c +++ b/board/freescale/common/fsl_chain_of_trust.c @@ -51,3 +51,20 @@ int fsl_check_boot_mode_secure(void) #endif return 0; } + +int fsl_setenv_chain_of_trust(void) +{ + /* Check Boot Mode + * If Boot Mode is Non-Secure, no changes are required + */ + if (fsl_check_boot_mode_secure() == 0) + return 0; + + /* If Boot mode is Secure, set the environment variables + * bootdelay = 0 (To disable Boot Prompt) + * bootcmd = CONFIG_CHAIN_BOOT_CMD (Validate and execute Boot script) + */ + setenv("bootdelay", "0"); + setenv("bootcmd", CONFIG_CHAIN_BOOT_CMD); + return 0; +} |