1bcff1da24a1b59ebd995d2c2fd8023f7b3b9f7f
[sitara-epos/sitara-epos-kernel.git] / arch / arm / plat-omap / include / plat / nand.h
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  */
11 #include <plat/gpmc.h>
12 #include <linux/mtd/partitions.h>
14 enum nand_io {
15         NAND_OMAP_PREFETCH_POLLED = 0,  /* prefetch polled mode, default */
16         NAND_OMAP_POLLED,               /* polled mode, without prefetch */
17         NAND_OMAP_PREFETCH_DMA,         /* prefetch enabled sDMA mode */
18         NAND_OMAP_PREFETCH_IRQ          /* prefetch enabled irq mode */
19 };
21 struct omap_nand_platform_data {
22         int                     cs;
23         struct mtd_partition    *parts;
24         struct gpmc_timings     *gpmc_t;
25         int                     nr_parts;
26         bool                    dev_ready;
27         int                     gpmc_irq;
28         enum nand_io            xfer_type;
29         unsigned long           phys_base;
30         int                     devsize;
31         enum omap_ecc           ecc_opt;
32         bool                    elm_used;
33 };
35 /* minimum size for IO mapping */
36 #define NAND_IO_SIZE    4
38 #if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
39 extern int gpmc_nand_init(struct omap_nand_platform_data *d);
40 #else
41 static inline int gpmc_nand_init(struct omap_nand_platform_data *d)
42 {
43         return 0;
44 }
45 #endif