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Linux kernel mirror (for testing)
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1#ifndef __ASM_ARCH_PXA3XX_NAND_H
2#define __ASM_ARCH_PXA3XX_NAND_H
3
4#include <linux/mtd/mtd.h>
5#include <linux/mtd/partitions.h>
6
7/*
8 * Current pxa3xx_nand controller has two chip select which
9 * both be workable.
10 *
11 * Notice should be taken that:
12 * When you want to use this feature, you should not enable the
13 * keep configuration feature, for two chip select could be
14 * attached with different nand chip. The different page size
15 * and timing requirement make the keep configuration impossible.
16 */
17
18/* The max num of chip select current support */
19#define NUM_CHIP_SELECT (2)
20struct pxa3xx_nand_platform_data {
21
22 /* the data flash bus is shared between the Static Memory
23 * Controller and the Data Flash Controller, the arbiter
24 * controls the ownership of the bus
25 */
26 int enable_arbiter;
27
28 /* allow platform code to keep OBM/bootloader defined NFC config */
29 int keep_config;
30
31 /* indicate how many chip selects will be used */
32 int num_cs;
33
34 /* use an flash-based bad block table */
35 bool flash_bbt;
36
37 /* requested ECC strength and ECC step size */
38 int ecc_strength, ecc_step_size;
39
40 const struct mtd_partition *parts[NUM_CHIP_SELECT];
41 unsigned int nr_parts[NUM_CHIP_SELECT];
42};
43
44extern void pxa3xx_set_nand_info(struct pxa3xx_nand_platform_data *info);
45#endif /* __ASM_ARCH_PXA3XX_NAND_H */