1 files changed, 41 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/cpu/armv7/lowlevel_init.S b/roms/u-boot/arch/arm/cpu/armv7/lowlevel_init.S
new file mode 100644
index 00000000..f1aea05c
--- /dev/null
+++ b/roms/u-boot/arch/arm/cpu/armv7/lowlevel_init.S
@@ -0,0 +1,41 @@
+/*
+ * A lowlevel_init function that sets up the stack to call a C function to
+ * perform further init.
+ *
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * Author :
+ *	Aneesh V	<aneesh@ti.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <asm-offsets.h>
+#include <config.h>
+#include <linux/linkage.h>
+
+ENTRY(lowlevel_init)
+	/*
+	 * Setup a temporary stack
+	 */
+	ldr	sp, =CONFIG_SYS_INIT_SP_ADDR
+	bic	sp, sp, #7 /* 8-byte alignment for ABI compliance */
+#ifdef CONFIG_SPL_BUILD
+	ldr	r9, =gdata
+#else
+	sub	sp, sp, #GD_SIZE
+	bic	sp, sp, #7
+	mov	r9, sp
+#endif
+	/*
+	 * Save the old lr(passed in ip) and the current lr to stack
+	 */
+	push	{ip, lr}
+
+	/*
+	 * go setup pll, mux, memory
+	 */
+	bl	s_init
+	pop	{ip, pc}
+ENDPROC(lowlevel_init)