summaryrefslogtreecommitdiff
path: root/arch/arm/mach-imx/imx9/lowlevel_init.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-imx/imx9/lowlevel_init.S')
-rw-r--r--arch/arm/mach-imx/imx9/lowlevel_init.S26
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx9/lowlevel_init.S b/arch/arm/mach-imx/imx9/lowlevel_init.S
new file mode 100644
index 0000000000..1dc1dbfcdd
--- /dev/null
+++ b/arch/arm/mach-imx/imx9/lowlevel_init.S
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2022 NXP
+ */
+
+#include <config.h>
+
+.align 8
+.global rom_pointer
+rom_pointer:
+ .space 256
+
+/*
+ * Routine: save_boot_params (called after reset from start.S)
+ */
+
+.global save_boot_params
+save_boot_params:
+#ifndef CONFIG_SPL_BUILD
+ /* The firmware provided ATAG/FDT address can be found in r2/x0 */
+ adr x0, rom_pointer
+ stp x1, x2, [x0], #16
+ stp x3, x4, [x0], #16
+#endif
+ /* Returns */
+ b save_boot_params_ret