diff options
| author | Paul Geurts <[email protected]> | 2024-11-01 09:49:21 +0100 |
|---|---|---|
| committer | Fabio Estevam <[email protected]> | 2024-11-09 08:53:36 -0300 |
| commit | 0bf7d6b4979835616f396337870d065543a2db4e (patch) | |
| tree | 41f1c9846a6f99e30d3d8dedb3f7616ff220e8f8 /arch/arm/include | |
| parent | 0a245862c2ba7a4a63dc6f6c1afbdcdb50c4ed89 (diff) | |
imx: hab: Make imx_hab_is_enabled dependent on FIELD_RETURN
The decision on whether HAB is enabled is solely based on the SEC_CONFIG
fuse. The HAB FIELD_RETURN feature is able to permanently disable HAB on
a CPU, after which it is able to boot unsigned firmware. U-Boot however
does not take into account the FIELD_RETURN mode, and refuses to boot
unsigned software when the feature is enabled.
Also take the FIELD_RETURN fuse into account when deciding whether HAB
is enabled. When The FIELD_RETURN fuse is blown, HAB is not enabled.
Tested on i.MX8M Mini, i.MX8M Plus, i.MX8M Nano and i.MX6ULL
Signed-off-by: Paul Geurts <[email protected]>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/mach-imx/hab.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mach-imx/hab.h b/arch/arm/include/asm/mach-imx/hab.h index 9410f30eef2..c0caf57fe61 100644 --- a/arch/arm/include/asm/mach-imx/hab.h +++ b/arch/arm/include/asm/mach-imx/hab.h @@ -139,6 +139,7 @@ struct imx_fuse { #if defined(CONFIG_IMX_HAB) extern struct imx_fuse const imx_sec_config_fuse; +extern struct imx_fuse const imx_field_return_fuse; #endif /*Function prototype description*/ |