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-rw-r--r--bl2/bl2_main.c30
1 files changed, 28 insertions, 2 deletions
diff --git a/bl2/bl2_main.c b/bl2/bl2_main.c
index e7ab7bb7..7d8d60c1 100644
--- a/bl2/bl2_main.c
+++ b/bl2/bl2_main.c
@@ -21,6 +21,7 @@
#define NEXT_IMAGE "BL31"
#endif
+#if !BL2_AT_EL3
/*******************************************************************************
* Setup function for BL2.
******************************************************************************/
@@ -44,6 +45,31 @@ void bl2_setup(u_register_t arg0, u_register_t arg1, u_register_t arg2,
bl2_plat_arch_setup();
}
+#else /* if BL2_AT_EL3 */
+/*******************************************************************************
+ * Setup function for BL2 when BL2_AT_EL3=1.
+ ******************************************************************************/
+void bl2_el3_setup(u_register_t arg0, u_register_t arg1, u_register_t arg2,
+ u_register_t arg3)
+{
+ /* Perform early platform-specific setup */
+ bl2_el3_early_platform_setup(arg0, arg1, arg2, arg3);
+
+#ifdef AARCH64
+ /*
+ * Update pointer authentication key before the MMU is enabled. It is
+ * saved in the rodata section, that can be writen before enabling the
+ * MMU. This function must be called after the console is initialized
+ * in the early platform setup.
+ */
+ bl_handle_pauth();
+#endif /* AARCH64 */
+
+ /* Perform late platform-specific setup */
+ bl2_el3_plat_arch_setup();
+}
+#endif /* BL2_AT_EL3 */
+
/*******************************************************************************
* The only thing to do in BL2 is to load further images and pass control to
* next BL. The memory occupied by BL2 will be reclaimed by BL3x stages. BL2
@@ -88,11 +114,11 @@ void bl2_main(void)
* be passed to next BL image as an argument.
*/
smc(BL1_SMC_RUN_IMAGE, (unsigned long)next_bl_ep_info, 0, 0, 0, 0, 0, 0);
-#else
+#else /* if BL2_AT_EL3 */
NOTICE("BL2: Booting " NEXT_IMAGE "\n");
print_entry_point_info(next_bl_ep_info);
console_flush();
bl2_run_next_image(next_bl_ep_info);
-#endif
+#endif /* BL2_AT_EL3 */
}