GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/drivers/core/util.c

@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2013 Google, Inc
+ */
+
+#include <common.h>
+#include <dm/ofnode.h>
+#include <dm/util.h>
+#include <linux/libfdt.h>
+#include <vsprintf.h>
+
+#ifdef CONFIG_DM_WARN
+void dm_warn(const char *fmt, ...)
+{
+	va_list args;
+
+	va_start(args, fmt);
+	vprintf(fmt, args);
+	va_end(args);
+}
+#endif
+
+int list_count_items(struct list_head *head)
+{
+	struct list_head *node;
+	int count = 0;
+
+	list_for_each(node, head)
+		count++;
+
+	return count;
+}
+
+#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
+bool dm_ofnode_pre_reloc(ofnode node)
+{
+#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_TPL_BUILD)
+	/* for SPL and TPL the remaining nodes after the fdtgrep 1st pass
+	 * had property dm-pre-reloc or u-boot,dm-spl/tpl.
+	 * They are removed in final dtb (fdtgrep 2nd pass)
+	 */
+	return true;
+#else
+	if (ofnode_read_bool(node, "u-boot,dm-pre-reloc"))
+		return true;
+	if (ofnode_read_bool(node, "u-boot,dm-pre-proper"))
+		return true;
+
+	/*
+	 * In regular builds individual spl and tpl handling both
+	 * count as handled pre-relocation for later second init.
+	 */
+	if (ofnode_read_bool(node, "u-boot,dm-spl") ||
+	    ofnode_read_bool(node, "u-boot,dm-tpl"))
+		return true;
+
+	return false;
+#endif
+}
+#endif