Release 4.7 include/linux/omap-gpmc.h
/*
* OMAP GPMC (General Purpose Memory Controller) defines
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/platform_data/gpmc-omap.h>
#define GPMC_CONFIG_WP 0x00000005
/* IRQ numbers in GPMC IRQ domain for legacy boot use */
#define GPMC_IRQ_FIFOEVENTENABLE 0
#define GPMC_IRQ_COUNT_EVENT 1
/**
* gpmc_nand_ops - Interface between NAND and GPMC
* @nand_write_buffer_empty: get the NAND write buffer empty status.
*/
struct gpmc_nand_ops {
bool (*nand_writebuffer_empty)(void);
};
struct gpmc_nand_regs;
#if IS_ENABLED(CONFIG_OMAP_GPMC)
struct gpmc_nand_ops *gpmc_omap_get_nand_ops(struct gpmc_nand_regs *regs,
int cs);
#else
static inline gpmc_nand_ops *gpmc_omap_get_nand_ops(struct gpmc_nand_regs *regs,
int cs)
{
return NULL;
}
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#endif /* CONFIG_OMAP_GPMC */
/*--------------------------------*/
/* deprecated APIs */
#if IS_ENABLED(CONFIG_OMAP_GPMC)
void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs);
#else
static inline void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs)
{
}
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#endif /* CONFIG_OMAP_GPMC */
/*--------------------------------*/
extern int gpmc_calc_timings(struct gpmc_timings *gpmc_t,
struct gpmc_settings *gpmc_s,
struct gpmc_device_timings *dev_t);
struct device_node;
extern int gpmc_get_client_irq(unsigned irq_config);
extern unsigned int gpmc_ticks_to_ns(unsigned int ticks);
extern void gpmc_cs_write_reg(int cs, int idx, u32 val);
extern int gpmc_calc_divider(unsigned int sync_clk);
extern int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t,
const struct gpmc_settings *s);
extern int gpmc_cs_program_settings(int cs, struct gpmc_settings *p);
extern int gpmc_cs_request(int cs, unsigned long size, unsigned long *base);
extern void gpmc_cs_free(int cs);
extern int gpmc_configure(int cmd, int wval);
extern void gpmc_read_settings_dt(struct device_node *np,
struct gpmc_settings *p);
extern void omap3_gpmc_save_context(void);
extern void omap3_gpmc_restore_context(void);
struct gpmc_timings;
struct omap_nand_platform_data;
struct omap_onenand_platform_data;
#if IS_ENABLED(CONFIG_MTD_NAND_OMAP2)
extern int gpmc_nand_init(struct omap_nand_platform_data *d,
struct gpmc_timings *gpmc_t);
#else
static inline int gpmc_nand_init(struct omap_nand_platform_data *d,
struct gpmc_timings *gpmc_t)
{
return 0;
}
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#endif
#if IS_ENABLED(CONFIG_MTD_ONENAND_OMAP2)
extern void gpmc_onenand_init(struct omap_onenand_platform_data *d);
#else
#define board_onenand_data NULL
static inline void gpmc_onenand_init(struct omap_onenand_platform_data *d)
{
}
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#endif
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