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authorRicardo Salveti2021-10-20 15:12:06 +0300
committerTom Rini2021-10-25 17:17:24 -0400
commit949eb228f3f807feb338d29e9c94d97c22fa98b6 (patch)
treeca643d9f848a87bd261ec7855598a6a0d14d41c5 /common/spl
parentd11d1becbd6ab67c4cc0c19bda2886b28c1fdc02 (diff)
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>
Diffstat (limited to 'common/spl')
-rw-r--r--common/spl/spl.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/common/spl/spl.c b/common/spl/spl.c
index a9304d41486..0c08da06e8f 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -174,6 +174,14 @@ __weak void spl_board_prepare_for_optee(void *fdt)
{
}
+#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 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
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)