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-rw-r--r--plat/rpi/rpi4/include/plat.ld.S23
1 files changed, 23 insertions, 0 deletions
diff --git a/plat/rpi/rpi4/include/plat.ld.S b/plat/rpi/rpi4/include/plat.ld.S
new file mode 100644
index 0000000..9262fad
--- /dev/null
+++ b/plat/rpi/rpi4/include/plat.ld.S
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Stub linker script to provide the armstub8.bin header before the actual
+ * code. If the GPU firmware finds a magic value at offset 240 in
+ * armstub8.bin, it will put the DTB and kernel load address in subsequent
+ * words. We can then read those values to find the proper NS entry point
+ * and find our DTB more flexibly.
+ */
+
+MEMORY {
+ PRERAM (rwx): ORIGIN = 0, LENGTH = 4096
+}
+
+SECTIONS
+{
+ .armstub8 . : {
+ *armstub8_header.o(.text*)
+ KEEP(*(.armstub8))
+ } >PRERAM
+}