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1 | /* | |
2 | * OMAP GPMC (General Purpose Memory Controller) defines | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the | |
6 | * Free Software Foundation; either version 2 of the License, or (at your | |
7 | * option) any later version. | |
8 | */ | |
9 | ||
10 | #include <linux/platform_data/gpmc-omap.h> | |
11 | ||
12 | #define GPMC_CONFIG_WP 0x00000005 | |
13 | ||
14 | /* IRQ numbers in GPMC IRQ domain for legacy boot use */ | |
15 | #define GPMC_IRQ_FIFOEVENTENABLE 0 | |
16 | #define GPMC_IRQ_COUNT_EVENT 1 | |
17 | ||
18 | /** | |
19 | * gpmc_nand_ops - Interface between NAND and GPMC | |
20 | * @nand_write_buffer_empty: get the NAND write buffer empty status. | |
21 | */ | |
22 | struct gpmc_nand_ops { | |
23 | bool (*nand_writebuffer_empty)(void); | |
24 | }; | |
25 | ||
26 | struct gpmc_nand_regs; | |
27 | ||
28 | #if IS_ENABLED(CONFIG_OMAP_GPMC) | |
29 | struct gpmc_nand_ops *gpmc_omap_get_nand_ops(struct gpmc_nand_regs *regs, | |
30 | int cs); | |
31 | #else | |
32 | static inline struct gpmc_nand_ops *gpmc_omap_get_nand_ops(struct gpmc_nand_regs *regs, | |
33 | int cs) | |
34 | { | |
35 | return NULL; | |
36 | } | |
37 | #endif /* CONFIG_OMAP_GPMC */ | |
38 | ||
39 | extern int gpmc_calc_timings(struct gpmc_timings *gpmc_t, | |
40 | struct gpmc_settings *gpmc_s, | |
41 | struct gpmc_device_timings *dev_t); | |
42 | ||
43 | struct device_node; | |
44 | ||
45 | extern int gpmc_get_client_irq(unsigned irq_config); | |
46 | ||
47 | extern unsigned int gpmc_ticks_to_ns(unsigned int ticks); | |
48 | ||
49 | extern void gpmc_cs_write_reg(int cs, int idx, u32 val); | |
50 | extern int gpmc_calc_divider(unsigned int sync_clk); | |
51 | extern int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t, | |
52 | const struct gpmc_settings *s); | |
53 | extern int gpmc_cs_program_settings(int cs, struct gpmc_settings *p); | |
54 | extern int gpmc_cs_request(int cs, unsigned long size, unsigned long *base); | |
55 | extern void gpmc_cs_free(int cs); | |
56 | extern int gpmc_configure(int cmd, int wval); | |
57 | extern void gpmc_read_settings_dt(struct device_node *np, | |
58 | struct gpmc_settings *p); | |
59 | ||
60 | extern void omap3_gpmc_save_context(void); | |
61 | extern void omap3_gpmc_restore_context(void); | |
62 | ||
63 | struct gpmc_timings; | |
64 | struct omap_nand_platform_data; | |
65 | struct omap_onenand_platform_data; | |
66 | ||
67 | #if IS_ENABLED(CONFIG_MTD_ONENAND_OMAP2) | |
68 | extern int gpmc_onenand_init(struct omap_onenand_platform_data *d); | |
69 | #else | |
70 | #define board_onenand_data NULL | |
71 | static inline int gpmc_onenand_init(struct omap_onenand_platform_data *d) | |
72 | { | |
73 | return 0; | |
74 | } | |
75 | #endif |