*/
#include <linux/mtd/mtd.h>
+#include <linux/mtd/rawnand.h>
#include <asm/cache.h>
#include <nand.h>
#include <asm/mach-imx/dma.h>
* @gf_len: The length of Galois Field. (e.g., 13 or 14)
* @ecc_strength: A number that describes the strength of the ECC
* algorithm.
- * @ecc_chunk_size: The size, in bytes, of a single ECC chunk. Note
- * the first chunk in the page includes both data and
- * metadata, so it's a bit larger than this value.
+ * @ecc_chunk0_size: The size, in bytes, of a first ECC chunk.
+ * @ecc_chunkn_size: The size, in bytes, of a single ECC chunk after
+ * the first chunk in the page.
* @ecc_chunk_count: The number of ECC chunks in the page,
* @block_mark_byte_offset: The byte offset in the ECC-based page view at
* which the underlying physical block mark appears.
* @block_mark_bit_offset: The bit offset into the ECC-based page view at
* which the underlying physical block mark appears.
+ * @ecc_for_meta: The flag to indicate if there is a dedicate ecc
+ * for meta.
*/
struct bch_geometry {
unsigned int gf_len;
unsigned int ecc_strength;
- unsigned int ecc_chunk_size;
+ unsigned int ecc_chunk0_size;
+ unsigned int ecc_chunkn_size;
unsigned int ecc_chunk_count;
unsigned int block_mark_byte_offset;
unsigned int block_mark_bit_offset;
+ unsigned int ecc_for_meta; /* ECC for meta data */
};
struct mxs_nand_info {
/* DMA descriptors */
struct mxs_dma_desc **desc;
uint32_t desc_index;
+
+ /* Hardware BCH interface and randomizer */
+ u32 en_randomizer;
+ u32 writesize;
+ u32 oobsize;
+ u32 bch_flash0layout0;
+ u32 bch_flash0layout1;
+};
+
+struct mxs_nand_layout {
+ u32 nblocks;
+ u32 meta_size;
+ u32 data0_size;
+ u32 ecc0;
+ u32 datan_size;
+ u32 eccn;
+ u32 gf_len;
};
int mxs_nand_init_ctrl(struct mxs_nand_info *nand_info);
int mxs_nand_init_spl(struct nand_chip *nand);
int mxs_nand_setup_ecc(struct mtd_info *mtd);
+
+void mxs_nand_mode_fcb_62bit(struct mtd_info *mtd);
+void mxs_nand_mode_fcb_40bit(struct mtd_info *mtd);
+void mxs_nand_mode_normal(struct mtd_info *mtd);
+u32 mxs_nand_mark_byte_offset(struct mtd_info *mtd);
+u32 mxs_nand_mark_bit_offset(struct mtd_info *mtd);
+void mxs_nand_get_layout(struct mtd_info *mtd, struct mxs_nand_layout *l);