arm: spl: prepare for jumping to OPTEE
Make sure to (if applicable) flush the D-cache, invalidate I-cache,
and disable MMU and caches before jumping to OPTEE.
This fixes the SDP->SPL->OPTEE boot flow on iMX6Q and most likely on
some other ARM SoCs.
Signed-off-by: Ricardo Salveti <ricardo@foundries.io>
Co-developed-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
diff --git a/common/spl/spl.c b/common/spl/spl.c
index a9304d4..0c08da0 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -174,6 +174,14 @@
{
}
+#if CONFIG_IS_ENABLED(OPTEE_IMAGE)
+__weak void __noreturn jump_to_image_optee(struct spl_image_info *spl_image)
+{
+ spl_optee_entry(NULL, NULL, spl_image->fdt_addr,
+ (void *)spl_image->entry_point);
+}
+#endif
+
__weak void spl_board_prepare_for_boot(void)
{
/* Nothing to do! */
@@ -780,8 +788,7 @@
case IH_OS_TEE:
debug("Jumping to U-Boot via OP-TEE\n");
spl_board_prepare_for_optee(spl_image.fdt_addr);
- spl_optee_entry(NULL, NULL, spl_image.fdt_addr,
- (void *)spl_image.entry_point);
+ jump_to_image_optee(&spl_image);
break;
#endif
#if CONFIG_IS_ENABLED(OPENSBI)