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[v4,09/11] mtd: nand: stm_nand_bch: adding BBT header

Message ID 1415206793-25670-10-git-send-email-lee.jones@linaro.org
State New
Headers show

Commit Message

Lee Jones Nov. 5, 2014, 4:59 p.m. UTC 
This header will be used firstly by the BCH main driver, then the
Bad Block Table (BBT) code which will be added immediately after.
Doing it this way provides the cleanest method of keeping the
patch-set bisectable.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 include/linux/mtd/stm_nand_bbt.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 include/linux/mtd/stm_nand_bbt.h
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Patch

diff --git a/include/linux/mtd/stm_nand_bbt.h b/include/linux/mtd/stm_nand_bbt.h
new file mode 100644
index 0000000..8f5deaa
--- /dev/null
+++ b/include/linux/mtd/stm_nand_bbt.h
@@ -0,0 +1,22 @@ 
+#ifndef __LINUX_MTD_STM_BBT_H
+#define __LINUX_MTD_STM_BBT_H
+
+#include <linux/mtd/stm_nand.h>
+
+/* BCH ECC sizes */
+static int bch_ecc_sizes[] = {
+	[BCH_18BIT_ECC] = 32,
+	[BCH_30BIT_ECC] = 54,
+	[BCH_NO_ECC] = 0,
+};
+
+#if IS_ENABLED(CONFIG_MTD_NAND_STM_BCH_BBT)
+extern void nandi_dump_bad_blocks(struct nandi_controller *nandi);
+extern int bch_scan_bbt(struct mtd_info *mtd);
+extern int bch_block_isbad(struct mtd_info *mtd, loff_t offs, int getchip);
+extern int bch_block_markbad(struct mtd_info *mtd, loff_t offs);
+#else
+static inline void nandi_dump_bad_blocks(struct nandi_controller *nandi) {}
+#endif
+
+#endif /* __LINUX_MTD_STM_BBT_H */