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gerrit-public.fairphone.software / kernel / msm-4.9 / c66d039197e42af8867e5d0d9b904daf0fb9e6bc / . / include / linux / platform_data / mtd-nand-omap2.h
blob: 4da5bfa2147f245ab980c3a1514647ef40eecf4b [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 {
Pekon Guptaac65caf2013-10-24 18:20:17 +0530[diff] [blame]26 /* 1-bit ECC calculation by GPMC, Error detection by Software */
Pekon Guptac66d0392013-10-24 18:20:18 +0530[diff] [blame^]27 OMAP_ECC_HAM1_CODE_HW = 0,
Pekon Guptaac65caf2013-10-24 18:20:17 +0530[diff] [blame]28 /* 4-bit ECC calculation by GPMC, Error detection by Software */
29 OMAP_ECC_BCH4_CODE_HW_DETECTION_SW,
30 /* 4-bit ECC calculation by GPMC, Error detection by ELM */
31 OMAP_ECC_BCH4_CODE_HW,
32 /* 8-bit ECC calculation by GPMC, Error detection by Software */
33 OMAP_ECC_BCH8_CODE_HW_DETECTION_SW,
34 /* 8-bit ECC calculation by GPMC, Error detection by ELM */
35 OMAP_ECC_BCH8_CODE_HW,
Afzal Mohammedbc3668e2012-09-29 12:26:13 +0530[diff] [blame]36};
37
38struct gpmc_nand_regs {
39 void __iomem *gpmc_status;
40 void __iomem *gpmc_nand_command;
41 void __iomem *gpmc_nand_address;
42 void __iomem *gpmc_nand_data;
43 void __iomem *gpmc_prefetch_config1;
44 void __iomem *gpmc_prefetch_config2;
45 void __iomem *gpmc_prefetch_control;
46 void __iomem *gpmc_prefetch_status;
47 void __iomem *gpmc_ecc_config;
48 void __iomem *gpmc_ecc_control;
49 void __iomem *gpmc_ecc_size_config;
50 void __iomem *gpmc_ecc1_result;
Afzal Mohammed2fdf0c92012-10-04 15:49:04 +0530[diff] [blame]51 void __iomem *gpmc_bch_result0[GPMC_BCH_NUM_REMAINDER];
52 void __iomem *gpmc_bch_result1[GPMC_BCH_NUM_REMAINDER];
53 void __iomem *gpmc_bch_result2[GPMC_BCH_NUM_REMAINDER];
54 void __iomem *gpmc_bch_result3[GPMC_BCH_NUM_REMAINDER];
Afzal Mohammedbc3668e2012-09-29 12:26:13 +0530[diff] [blame]55};
56
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame]57struct omap_nand_platform_data {
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame]58 int cs;
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame]59 struct mtd_partition *parts;
60 int nr_parts;
Grazvydas Ignotas7a559c72011-06-03 19:56:33 +0000[diff] [blame]61 bool dev_ready;
Sukumar Ghorai1b0b323c2011-01-28 15:42:04 +0530[diff] [blame]62 enum nand_io xfer_type;
Vimal Singh2f70a1e2010-02-15 10:03:33 -0800[diff] [blame]63 int devsize;
Sukumar Ghoraif3d73f32011-01-28 15:42:08 +0530[diff] [blame]64 enum omap_ecc ecc_opt;
Afzal Mohammedd126d012012-08-30 12:53:22 -0700[diff] [blame]65 struct gpmc_nand_regs reg;
Vimal Singh2f70a1e2010-02-15 10:03:33 -0800[diff] [blame]66
Daniel Mackccf04c52012-12-14 11:36:41 +0100[diff] [blame]67 /* for passing the partitions */
68 struct device_node *of_node;
Pekon Guptaac65caf2013-10-24 18:20:17 +0530[diff] [blame]69 struct device_node *elm_of_node;
Daniel Mackccf04c52012-12-14 11:36:41 +0100[diff] [blame]70};
stanley.miao562468b2010-04-20 06:33:26 +0000[diff] [blame]71#endif