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

source/bootloader/u-boot-2020.01/drivers/mtd/mtd-uclass.c

@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2015 Thomas Chou <thomas@wytron.com.tw>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/device-internal.h>
+#include <errno.h>
+#include <mtd.h>
+
+/**
+ * mtd_probe - Probe the device @dev if not already done
+ *
+ * @dev: U-Boot device to probe
+ *
+ * @return 0 on success, an error otherwise.
+ */
+int mtd_probe(struct udevice *dev)
+{
+	if (device_active(dev))
+		return 0;
+
+	return device_probe(dev);
+}
+
+/*
+ * Implement a MTD uclass which should include most flash drivers.
+ * The uclass private is pointed to mtd_info.
+ */
+
+UCLASS_DRIVER(mtd) = {
+	.id		= UCLASS_MTD,
+	.name		= "mtd",
+	.per_device_auto_alloc_size = sizeof(struct mtd_info),
+};