spl: imx: use trampoline buffer to load images to secure region
When SPL loading image to secure region, for example, ATF and tee to
DDR secure region. Because the USDHC controller is non-secure master,
it can't access this region and will cause loading issue.
So use a trampoline buffer in non-secure region, then use CPU to copy the
image from trampoline buffer to destination secure region.
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index b076f49..0bc96d0 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -363,6 +363,12 @@
Support booting U-Boot from an i.MX8 container image. If you are not
using i.MX8, say 'n'.
+config SPL_IMX_CONTAINER_USE_TRAMPOLINE
+ bool
+ depends on SPL
+ help
+ Enable SPL load reader to load data to a trampoline buffer.
+
config IMX_CONTAINER_CFG
string "i.MX8 Container config file"
depends on SPL && SPL_LOAD_IMX_CONTAINER