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86 lines
2.5 KiB
86 lines
2.5 KiB
/* |
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* Copyright (C) 2006 Micron Technology Inc. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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*/ |
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#ifndef _MTD_NAND_OMAP2_H |
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#define _MTD_NAND_OMAP2_H |
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#include <linux/mtd/partitions.h> |
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#define GPMC_BCH_NUM_REMAINDER 8 |
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enum nand_io { |
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NAND_OMAP_PREFETCH_POLLED = 0, /* prefetch polled mode, default */ |
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NAND_OMAP_POLLED, /* polled mode, without prefetch */ |
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NAND_OMAP_PREFETCH_DMA, /* prefetch enabled sDMA mode */ |
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NAND_OMAP_PREFETCH_IRQ /* prefetch enabled irq mode */ |
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}; |
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enum omap_ecc { |
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/* |
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* 1-bit ECC: calculation and correction by SW |
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* ECC stored at end of spare area |
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*/ |
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OMAP_ECC_HAM1_CODE_SW = 0, |
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/* |
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* 1-bit ECC: calculation by GPMC, Error detection by Software |
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* ECC layout compatible with ROM code layout |
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*/ |
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OMAP_ECC_HAM1_CODE_HW, |
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/* 4-bit ECC calculation by GPMC, Error detection by Software */ |
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OMAP_ECC_BCH4_CODE_HW_DETECTION_SW, |
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/* 4-bit ECC calculation by GPMC, Error detection by ELM */ |
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OMAP_ECC_BCH4_CODE_HW, |
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/* 8-bit ECC calculation by GPMC, Error detection by Software */ |
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OMAP_ECC_BCH8_CODE_HW_DETECTION_SW, |
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/* 8-bit ECC calculation by GPMC, Error detection by ELM */ |
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OMAP_ECC_BCH8_CODE_HW, |
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/* 16-bit ECC calculation by GPMC, Error detection by ELM */ |
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OMAP_ECC_BCH16_CODE_HW, |
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}; |
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struct gpmc_nand_regs { |
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void __iomem *gpmc_nand_command; |
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void __iomem *gpmc_nand_address; |
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void __iomem *gpmc_nand_data; |
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void __iomem *gpmc_prefetch_config1; |
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void __iomem *gpmc_prefetch_config2; |
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void __iomem *gpmc_prefetch_control; |
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void __iomem *gpmc_prefetch_status; |
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void __iomem *gpmc_ecc_config; |
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void __iomem *gpmc_ecc_control; |
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void __iomem *gpmc_ecc_size_config; |
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void __iomem *gpmc_ecc1_result; |
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void __iomem *gpmc_bch_result0[GPMC_BCH_NUM_REMAINDER]; |
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void __iomem *gpmc_bch_result1[GPMC_BCH_NUM_REMAINDER]; |
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void __iomem *gpmc_bch_result2[GPMC_BCH_NUM_REMAINDER]; |
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void __iomem *gpmc_bch_result3[GPMC_BCH_NUM_REMAINDER]; |
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void __iomem *gpmc_bch_result4[GPMC_BCH_NUM_REMAINDER]; |
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void __iomem *gpmc_bch_result5[GPMC_BCH_NUM_REMAINDER]; |
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void __iomem *gpmc_bch_result6[GPMC_BCH_NUM_REMAINDER]; |
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/* Deprecated. Do not use */ |
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void __iomem *gpmc_status; |
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}; |
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struct omap_nand_platform_data { |
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int cs; |
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struct mtd_partition *parts; |
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int nr_parts; |
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bool flash_bbt; |
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enum nand_io xfer_type; |
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int devsize; |
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enum omap_ecc ecc_opt; |
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struct device_node *elm_of_node; |
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/* deprecated */ |
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struct gpmc_nand_regs reg; |
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struct device_node *of_node; |
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bool dev_ready; |
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}; |
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#endif
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