arm: octeontx2: Add support for OcteonTX2 SoC platforms
This patch adds support for all OcteonTX2 96xx/95xx
boards from Marvell.
For 96xx boards, use octeontx_96xx_defconfig and
for 95xx boards, use octeontx_95xx_defconfig.
Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
diff --git a/arch/arm/mach-octeontx2/lowlevel_init.S b/arch/arm/mach-octeontx2/lowlevel_init.S
new file mode 100644
index 0000000..41a9f08
--- /dev/null
+++ b/arch/arm/mach-octeontx2/lowlevel_init.S
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * https://spdx.org/licenses
+ */
+
+#include <config.h>
+#include <linux/linkage.h>
+#include <asm/macro.h>
+
+.align 8
+.global fdt_base_addr
+fdt_base_addr:
+ .dword 0x0
+
+.global save_boot_params
+save_boot_params:
+ /* Read FDT base from x1 register passed by ATF */
+ adr x21, fdt_base_addr
+ str x1, [x21]
+
+ /* Returns */
+ b save_boot_params_ret
+
+ENTRY(lowlevel_init)
+ mov x29, lr /* Save LR */
+
+ /* any lowlevel init should go here */
+
+ mov lr, x29 /* Restore LR */
+ ret
+ENDPROC(lowlevel_init)