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authorRicardo Salveti2021-10-20 15:12:06 +0300
committerTom Rini2021-10-25 17:17:24 -0400
commit949eb228f3f807feb338d29e9c94d97c22fa98b6 (patch)
treeca643d9f848a87bd261ec7855598a6a0d14d41c5 /include
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 'include')
-rw-r--r--include/spl.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/spl.h b/include/spl.h
index 7ddb2abe0fb..0af0ee30034 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -469,6 +469,15 @@ int spl_board_boot_device(u32 boot_device);
void __noreturn jump_to_image_linux(struct spl_image_info *spl_image);
/**
+ * jump_to_image_linux() - Jump to OP-TEE OS from SPL
+ *
+ * This jumps into OP-TEE OS using the information in @spl_image.
+ *
+ * @spl_image: Image description to set up
+ */
+void __noreturn jump_to_image_optee(struct spl_image_info *spl_image);
+
+/**
* spl_start_uboot() - Check if SPL should start the kernel or U-Boot
*
* This is called by the various SPL loaders to determine whether the board
@@ -759,7 +768,7 @@ struct bl_params *bl2_plat_get_bl31_params_v2_default(uintptr_t bl32_entry,
* @arg2: device tree address, (ARMv7 standard bootarg #2)
* @arg3: non-secure entry address (ARMv7 bootarg #0)
*/
-void spl_optee_entry(void *arg0, void *arg1, void *arg2, void *arg3);
+void __noreturn spl_optee_entry(void *arg0, void *arg1, void *arg2, void *arg3);
/**
* spl_invoke_opensbi - boot using a RISC-V OpenSBI image