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gerrit-public.fairphone.software / kernel / msm-4.9 / 30bc9b53878a9921b02e3b5bc4283ac1c6de102a / . / include / linux / platform_data / mtd-nand-omap2.h
blob: 6bf9ef43ddb1cfad1922e70e711c91aab5407af3 [file] [log] [blame]
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame]1/*
2 * arch/arm/plat-omap/include/mach/nand.h
3 *
4 * Copyright (C) 2006 Micron Technology Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
Afzal Mohammedbc3668e2012-09-29 12:26:13 +0530[diff] [blame]11#ifndef _MTD_NAND_OMAP2_H
12#define _MTD_NAND_OMAP2_H
13
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame]14#include <linux/mtd/partitions.h>
15
Afzal Mohammed2fdf0c92012-10-04 15:49:04 +0530[diff] [blame]16#define GPMC_BCH_NUM_REMAINDER 8
17
Sukumar Ghorai1b0b323c2011-01-28 15:42:04 +0530[diff] [blame]18enum nand_io {
19 NAND_OMAP_PREFETCH_POLLED = 0, /* prefetch polled mode, default */
20 NAND_OMAP_POLLED, /* polled mode, without prefetch */
Sukumar Ghorai4e070372011-01-28 15:42:06 +0530[diff] [blame]21 NAND_OMAP_PREFETCH_DMA, /* prefetch enabled sDMA mode */
22 NAND_OMAP_PREFETCH_IRQ /* prefetch enabled irq mode */
Sukumar Ghorai1b0b323c2011-01-28 15:42:04 +0530[diff] [blame]23};
24
Afzal Mohammedbc3668e2012-09-29 12:26:13 +0530[diff] [blame]25enum omap_ecc {
26 /* 1-bit ecc: stored at end of spare area */
27 OMAP_ECC_HAMMING_CODE_DEFAULT = 0, /* Default, s/w method */
28 OMAP_ECC_HAMMING_CODE_HW, /* gpmc to detect the error */
29 /* 1-bit ecc: stored at beginning of spare area as romcode */
30 OMAP_ECC_HAMMING_CODE_HW_ROMCODE, /* gpmc method & romcode layout */
31 OMAP_ECC_BCH4_CODE_HW, /* 4-bit BCH ecc code */
32 OMAP_ECC_BCH8_CODE_HW, /* 8-bit BCH ecc code */
33};
34
35struct gpmc_nand_regs {
36 void __iomem *gpmc_status;
37 void __iomem *gpmc_nand_command;
38 void __iomem *gpmc_nand_address;
39 void __iomem *gpmc_nand_data;
40 void __iomem *gpmc_prefetch_config1;
41 void __iomem *gpmc_prefetch_config2;
42 void __iomem *gpmc_prefetch_control;
43 void __iomem *gpmc_prefetch_status;
44 void __iomem *gpmc_ecc_config;
45 void __iomem *gpmc_ecc_control;
46 void __iomem *gpmc_ecc_size_config;
47 void __iomem *gpmc_ecc1_result;
Afzal Mohammed2fdf0c92012-10-04 15:49:04 +0530[diff] [blame]48 void __iomem *gpmc_bch_result0[GPMC_BCH_NUM_REMAINDER];
49 void __iomem *gpmc_bch_result1[GPMC_BCH_NUM_REMAINDER];
50 void __iomem *gpmc_bch_result2[GPMC_BCH_NUM_REMAINDER];
51 void __iomem *gpmc_bch_result3[GPMC_BCH_NUM_REMAINDER];
Afzal Mohammedbc3668e2012-09-29 12:26:13 +0530[diff] [blame]52};
53
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame]54struct omap_nand_platform_data {
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame]55 int cs;
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame]56 struct mtd_partition *parts;
57 int nr_parts;
Grazvydas Ignotas7a559c72011-06-03 19:56:33 +0000[diff] [blame]58 bool dev_ready;
Sukumar Ghorai1b0b323c2011-01-28 15:42:04 +0530[diff] [blame]59 enum nand_io xfer_type;
Vimal Singh2f70a1e2010-02-15 10:03:33 -0800[diff] [blame]60 int devsize;
Sukumar Ghoraif3d73f32011-01-28 15:42:08 +0530[diff] [blame]61 enum omap_ecc ecc_opt;
Afzal Mohammedd126d012012-08-30 12:53:22 -0700[diff] [blame]62 struct gpmc_nand_regs reg;
Vimal Singh2f70a1e2010-02-15 10:03:33 -0800[diff] [blame]63
Daniel Mackccf04c52012-12-14 11:36:41 +0100[diff] [blame]64 /* for passing the partitions */
65 struct device_node *of_node;
66};
stanley.miao562468b2010-04-20 06:33:26 +0000[diff] [blame]67#endif