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-rw-r--r--drivers/mtd/nand/raw/atmel/pmecc.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/atmel/pmecc.h b/drivers/mtd/nand/raw/atmel/pmecc.h
new file mode 100644
index 000000000..7851c0512
--- /dev/null
+++ b/drivers/mtd/nand/raw/atmel/pmecc.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * © Copyright 2016 ATMEL
+ * © Copyright 2016 Free Electrons
+ *
+ * Author: Boris Brezillon <boris.brezillon@free-electrons.com>
+ *
+ * Derived from the atmel_nand.c driver which contained the following
+ * copyrights:
+ *
+ * Copyright © 2003 Rick Bronson
+ *
+ * Derived from drivers/mtd/nand/autcpu12.c (removed in v3.8)
+ * Copyright © 2001 Thomas Gleixner (gleixner@autronix.de)
+ *
+ * Derived from drivers/mtd/spia.c (removed in v3.8)
+ * Copyright © 2000 Steven J. Hill (sjhill@cotw.com)
+ *
+ *
+ * Add Hardware ECC support for AT91SAM9260 / AT91SAM9263
+ * Richard Genoud (richard.genoud@gmail.com), Adeneo Copyright © 2007
+ *
+ * Derived from Das U-Boot source code
+ * (u-boot-1.1.5/board/atmel/at91sam9263ek/nand.c)
+ * © Copyright 2006 ATMEL Rousset, Lacressonniere Nicolas
+ *
+ * Add Programmable Multibit ECC support for various AT91 SoC
+ * © Copyright 2012 ATMEL, Hong Xu
+ *
+ * Add Nand Flash Controller support for SAMA5 SoC
+ * © Copyright 2013 ATMEL, Josh Wu (josh.wu@atmel.com)
+ */
+
+#ifndef ATMEL_PMECC_H
+#define ATMEL_PMECC_H
+
+#define ATMEL_PMECC_MAXIMIZE_ECC_STRENGTH 0
+#define ATMEL_PMECC_SECTOR_SIZE_AUTO 0
+#define ATMEL_PMECC_OOBOFFSET_AUTO -1
+
+struct atmel_pmecc_user_req {
+ int pagesize;
+ int oobsize;
+ struct {
+ int strength;
+ int bytes;
+ int sectorsize;
+ int nsectors;
+ int ooboffset;
+ } ecc;
+};
+
+struct atmel_pmecc *devm_atmel_pmecc_get(struct device *dev);
+
+struct atmel_pmecc_user *
+atmel_pmecc_create_user(struct atmel_pmecc *pmecc,
+ struct atmel_pmecc_user_req *req);
+void atmel_pmecc_destroy_user(struct atmel_pmecc_user *user);
+
+void atmel_pmecc_reset(struct atmel_pmecc *pmecc);
+int atmel_pmecc_enable(struct atmel_pmecc_user *user, int op);
+void atmel_pmecc_disable(struct atmel_pmecc_user *user);
+int atmel_pmecc_wait_rdy(struct atmel_pmecc_user *user);
+int atmel_pmecc_correct_sector(struct atmel_pmecc_user *user, int sector,
+ void *data, void *ecc);
+bool atmel_pmecc_correct_erased_chunks(struct atmel_pmecc_user *user);
+void atmel_pmecc_get_generated_eccbytes(struct atmel_pmecc_user *user,
+ int sector, void *ecc);
+
+#endif /* ATMEL_PMECC_H */