arm: imx: hab: Define rvt_failsafe()
authorBryan O'Donoghue <bryan.odonoghue@linaro.org>
Fri, 12 Jan 2018 12:40:17 +0000 (12:40 +0000)
committerStefano Babic <sbabic@denx.de>
Sun, 14 Jan 2018 16:26:30 +0000 (17:26 +0100)
commitaeae70fac5c9ca9b082222da513d5f287bda73c4
treeaf40e06e28b7da7df917c58c7ed9ca7c22214ca6
parent07eefaf16e2a7aec35fa3ae8c17c5492cc0af524
arm: imx: hab: Define rvt_failsafe()

The hab_rvt_failsafe() callback according to the HABv4 documentation:

"This function provides a safe path when image authentication has failed
and all possible boot paths have been exhausted. It is intended for use by
post-ROM boot stage components, via the ROM Vector Table."

Once invoked the part will drop down to its BootROM USB recovery mode.
Should it be the case that the part is in secure boot mode - only an
appropriately signed binary will be accepted by the ROM and subsequently
executed.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Sven Ebenfeld <sven.ebenfeld@gmail.com>
Cc: George McCollister <george.mccollister@gmail.com>
Cc: Breno Matheus Lima <brenomatheus@gmail.com>
Tested-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
arch/arm/include/asm/mach-imx/hab.h