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authorThomas Chou <thomas@wytron.com.tw>2015-11-07 14:20:31 +0800
committerThomas Chou <thomas@wytron.com.tw>2015-11-12 08:26:58 +0800
commitd85879938d3fc3557f6ff74a60f95e0975a314ce (patch)
tree9610f6a0c88c2005c274a2b6adce644d4088c53f /include/mtd.h
parentb375219e732f044e7f48b676fa4e36e7c29d81e1 (diff)
downloadu-boot-d85879938d3fc3557f6ff74a60f95e0975a314ce.tar.gz
dm: implement a MTD uclass
Implement a Memory Technology Device (MTD) uclass. It should include most flash drivers in the future. Though no uclass ops are defined yet, the MTD ops could be used. The NAND flash driver is based on MTD. The CFI flash and SPI flash support MTD, too. It should make sense to convert them to MTD uclass. Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Diffstat (limited to 'include/mtd.h')
-rw-r--r--include/mtd.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/include/mtd.h b/include/mtd.h
new file mode 100644
index 0000000000..3f8c293b00
--- /dev/null
+++ b/include/mtd.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2015 Thomas Chou <thomas@wytron.com.tw>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _MTD_H_
+#define _MTD_H_
+
+#include <linux/mtd/mtd.h>
+
+/*
+ * Get mtd_info structure of the dev, which is stored as uclass private.
+ *
+ * @dev: The MTD device
+ * @return: pointer to mtd_info, NULL on error
+ */
+static inline struct mtd_info *mtd_get_info(struct udevice *dev)
+{
+ return dev_get_uclass_priv(dev);
+}
+
+#endif /* _MTD_H_ */