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-rw-r--r--drivers/mtd/nand/jz4780_bch.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/mtd/nand/jz4780_bch.h b/drivers/mtd/nand/jz4780_bch.h
new file mode 100644
index 000000000000..bf4718088a3a
--- /dev/null
+++ b/drivers/mtd/nand/jz4780_bch.h
@@ -0,0 +1,43 @@
+/*
+ * JZ4780 BCH controller
+ *
+ * Copyright (c) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#ifndef __DRIVERS_MTD_NAND_JZ4780_BCH_H__
+#define __DRIVERS_MTD_NAND_JZ4780_BCH_H__
+
+#include <linux/types.h>
+
+struct device;
+struct device_node;
+struct jz4780_bch;
+
+/**
+ * struct jz4780_bch_params - BCH parameters
+ * @size: data bytes per ECC step.
+ * @bytes: ECC bytes per step.
+ * @strength: number of correctable bits per ECC step.
+ */
+struct jz4780_bch_params {
+ int size;
+ int bytes;
+ int strength;
+};
+
+int jz4780_bch_calculate(struct jz4780_bch *bch,
+ struct jz4780_bch_params *params,
+ const u8 *buf, u8 *ecc_code);
+int jz4780_bch_correct(struct jz4780_bch *bch,
+ struct jz4780_bch_params *params, u8 *buf,
+ u8 *ecc_code);
+
+void jz4780_bch_release(struct jz4780_bch *bch);
+struct jz4780_bch *of_jz4780_bch_get(struct device_node *np);
+
+#endif /* __DRIVERS_MTD_NAND_JZ4780_BCH_H__ */