diff options
Diffstat (limited to 'include/linux/omap-gpmc.h')
| -rw-r--r-- | include/linux/omap-gpmc.h | 57 |
1 files changed, 26 insertions, 31 deletions
diff --git a/include/linux/omap-gpmc.h b/include/linux/omap-gpmc.h index fd0de00c0d77..263b915df1fb 100644 --- a/include/linux/omap-gpmc.h +++ b/include/linux/omap-gpmc.h @@ -1,10 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * 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> @@ -25,28 +21,44 @@ struct gpmc_nand_ops { struct gpmc_nand_regs; +struct gpmc_onenand_info { + bool sync_read; + bool sync_write; + int burst_len; +}; + #if IS_ENABLED(CONFIG_OMAP_GPMC) struct gpmc_nand_ops *gpmc_omap_get_nand_ops(struct gpmc_nand_regs *regs, int cs); +/** + * gpmc_omap_onenand_set_timings - set optimized sync timings. + * @cs: Chip Select Region + * @freq: Chip frequency + * @latency: Burst latency cycle count + * @info: Structure describing parameters used + * + * Sets optimized timings for the @cs region based on @freq and @latency. + * Updates the @info structure based on the GPMC settings. + */ +int gpmc_omap_onenand_set_timings(struct device *dev, int cs, int freq, + int latency, + struct gpmc_onenand_info *info); + #else static inline struct gpmc_nand_ops *gpmc_omap_get_nand_ops(struct gpmc_nand_regs *regs, int cs) { return NULL; } -#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) +static inline +int gpmc_omap_onenand_set_timings(struct device *dev, int cs, int freq, + int latency, + struct gpmc_onenand_info *info) { + return -EINVAL; } #endif /* CONFIG_OMAP_GPMC */ -/*--------------------------------*/ extern int gpmc_calc_timings(struct gpmc_timings *gpmc_t, struct gpmc_settings *gpmc_s, @@ -54,10 +66,6 @@ extern int gpmc_calc_timings(struct gpmc_timings *gpmc_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, @@ -69,19 +77,6 @@ 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_ONENAND_OMAP2) -extern int gpmc_onenand_init(struct omap_onenand_platform_data *d); -#else -#define board_onenand_data NULL -static inline int gpmc_onenand_init(struct omap_onenand_platform_data *d) -{ - return 0; -} -#endif |