From: Marcel Ziswiler <marcel.ziswi...@toradex.com>
Prepare for DEK blob encapsulation support through "dek_blob" command.
On ARMv8, u-boot runs in non-secure, thus cannot encapsulate a DEK blob
for encrypted boot.
The DEK blob is encapsulated by OP-TEE through a trusted application
call. U-boot sends and receives the DEK and the DEK blob binaries
through OP-TEE dynamic shared memory.
To enable the DEK blob encapsulation, add to the defconfig:
CONFIG_SECURE_BOOT=y
CONFIG_FAT_WRITE=y
CONFIG_CMD_DEKBLOB=y
Taken from NXP's commit 56d2050f4028 ("imx8m: Add DEK blob encapsulation
for imx8m").
Signed-off-by: Marcel Ziswiler <marcel.ziswi...@toradex.com>
Reviewed-by: Fabio Estevam <feste...@gmail.com>
---
(no changes since v1)
arch/arm/dts/imx8mm-verdin-u-boot.dtsi | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm/dts/imx8mm-verdin-u-boot.dtsi
b/arch/arm/dts/imx8mm-verdin-u-boot.dtsi
index 67c31c49b6c..a97626fa0c1 100644
--- a/arch/arm/dts/imx8mm-verdin-u-boot.dtsi
+++ b/arch/arm/dts/imx8mm-verdin-u-boot.dtsi
@@ -6,6 +6,13 @@
#include "imx8mm-u-boot.dtsi"
/ {
+ firmware {
+ optee {
+ compatible = "linaro,optee-tz";
+ method = "smc";
+ };
+ };
+
wdt-reboot {
compatible = "wdt-reboot";
wdt = <&wdog1>;
--
2.26.2
