| /* |
| * arch/arm/plat-omap/include/mach/nand.h |
| * |
| * Copyright (C) 2006 Micron Technology Inc. |
| * |
| * 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 _MTD_NAND_OMAP2_H |
| #define _MTD_NAND_OMAP2_H |
| |
| #include <linux/mtd/partitions.h> |
| |
| #define GPMC_BCH_NUM_REMAINDER 8 |
| |
| enum nand_io { |
| NAND_OMAP_PREFETCH_POLLED = 0, /* prefetch polled mode, default */ |
| NAND_OMAP_POLLED, /* polled mode, without prefetch */ |
| NAND_OMAP_PREFETCH_DMA, /* prefetch enabled sDMA mode */ |
| NAND_OMAP_PREFETCH_IRQ /* prefetch enabled irq mode */ |
| }; |
| |
| enum omap_ecc { |
| /* 1-bit ecc: stored at end of spare area */ |
| OMAP_ECC_HAMMING_CODE_DEFAULT = 0, /* Default, s/w method */ |
| OMAP_ECC_HAMMING_CODE_HW, /* gpmc to detect the error */ |
| /* 1-bit ecc: stored at beginning of spare area as romcode */ |
| OMAP_ECC_HAMMING_CODE_HW_ROMCODE, /* gpmc method & romcode layout */ |
| OMAP_ECC_BCH4_CODE_HW, /* 4-bit BCH ecc code */ |
| OMAP_ECC_BCH8_CODE_HW, /* 8-bit BCH ecc code */ |
| }; |
| |
| struct gpmc_nand_regs { |
| void __iomem *gpmc_status; |
| void __iomem *gpmc_nand_command; |
| void __iomem *gpmc_nand_address; |
| void __iomem *gpmc_nand_data; |
| void __iomem *gpmc_prefetch_config1; |
| void __iomem *gpmc_prefetch_config2; |
| void __iomem *gpmc_prefetch_control; |
| void __iomem *gpmc_prefetch_status; |
| void __iomem *gpmc_ecc_config; |
| void __iomem *gpmc_ecc_control; |
| void __iomem *gpmc_ecc_size_config; |
| void __iomem *gpmc_ecc1_result; |
| void __iomem *gpmc_bch_result0[GPMC_BCH_NUM_REMAINDER]; |
| void __iomem *gpmc_bch_result1[GPMC_BCH_NUM_REMAINDER]; |
| void __iomem *gpmc_bch_result2[GPMC_BCH_NUM_REMAINDER]; |
| void __iomem *gpmc_bch_result3[GPMC_BCH_NUM_REMAINDER]; |
| }; |
| |
| struct omap_nand_platform_data { |
| int cs; |
| struct mtd_partition *parts; |
| int nr_parts; |
| bool dev_ready; |
| enum nand_io xfer_type; |
| int devsize; |
| enum omap_ecc ecc_opt; |
| struct gpmc_nand_regs reg; |
| }; |
| |
| #endif |