import the U-Boot code and make it compile

1 files changed, 51 insertions, 0 deletions

diff --git a/include/initcall.h b/include/initcall.h
new file mode 100644
index 0000000..b5acdd0
--- /dev/null
+++ b/include/initcall.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ */
+
+#ifndef __INITCALL_H
+#define __INITCALL_H
+
+typedef int (*init_fnc_t)(void);
+
+/*
+ * To enable debugging. add #define DEBUG at the top of the including file.
+ *
+ * To find a symbol, use grep on u-boot.map
+ */
+static inline int initcall_run_list(const init_fnc_t init_sequence[])
+{
+	const init_fnc_t *init_fnc_ptr;
+
+	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
+		unsigned long reloc_ofs = 0;
+		int ret;
+
+		/*
+		 * Sandbox is relocated by the OS, so symbols always appear at
+		 * the relocated address.
+		 */
+		if (IS_ENABLED(CONFIG_SANDBOX) || (gd->flags & GD_FLG_RELOC))
+			reloc_ofs = gd->reloc_off;
+#ifdef CONFIG_EFI_APP
+		reloc_ofs = (unsigned long)image_base;
+#endif
+		if (reloc_ofs)
+			debug("initcall: %p (relocated to %p)\n",
+					(char *)*init_fnc_ptr - reloc_ofs,
+					(char *)*init_fnc_ptr);
+		else
+			debug("initcall: %p\n", (char *)*init_fnc_ptr - reloc_ofs);
+
+		ret = (*init_fnc_ptr)();
+		if (ret) {
+			printf("initcall sequence %p failed at call %p (err=%d)\n",
+			       init_sequence,
+			       (char *)*init_fnc_ptr - reloc_ofs, ret);
+			return -1;
+		}
+	}
+	return 0;
+}
+
+#endif