diff options
Diffstat (limited to 'drivers/clk/at91/pmc.h')
| -rw-r--r-- | drivers/clk/at91/pmc.h | 197 |
1 files changed, 143 insertions, 54 deletions
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h index b553ea259c..6c8801a0f9 100644 --- a/drivers/clk/at91/pmc.h +++ b/drivers/clk/at91/pmc.h @@ -1,30 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * drivers/clk/at91/pmc.h * * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com> - * - * 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. */ #ifndef __PMC_H_ #define __PMC_H_ -#include <io.h> +#include <linux/io.h> +#include <linux/regmap.h> +#include <of.h> +#include <linux/barebox-wrapper.h> #include <linux/spinlock.h> -#include <printk.h> + +#include <dt-bindings/clock/at91.h> + +extern spinlock_t pmc_pcr_lock; struct pmc_data { unsigned int ncore; - struct clk **chws; + struct clk_hw **chws; unsigned int nsystem; - struct clk **shws; + struct clk_hw **shws; unsigned int nperiph; - struct clk **phws; + struct clk_hw **phws; unsigned int ngck; - struct clk **ghws; + struct clk_hw **ghws; + unsigned int npck; + struct clk_hw **pchws; + + struct clk_hw *hwtable[]; }; struct clk_range { @@ -35,6 +41,7 @@ struct clk_range { #define CLK_RANGE(MIN, MAX) {.min = MIN, .max = MAX,} struct clk_master_layout { + u32 offset; u32 mask; u8 pres_shift; }; @@ -44,14 +51,20 @@ extern const struct clk_master_layout at91sam9x5_master_layout; struct clk_master_characteristics { struct clk_range output; - u32 divisors[4]; + u32 divisors[5]; u8 have_div3_pres; }; struct clk_pll_layout { u32 pllr_mask; - u16 mul_mask; + u32 mul_mask; + u32 frac_mask; + u32 div_mask; + u32 endiv_mask; u8 mul_shift; + u8 frac_shift; + u8 div_shift; + u8 endiv_shift; }; extern const struct clk_pll_layout at91rm9200_pll_layout; @@ -62,118 +75,194 @@ extern const struct clk_pll_layout sama5d3_pll_layout; struct clk_pll_characteristics { struct clk_range input; int num_output; - struct clk_range *output; + const struct clk_range *output; u16 *icpll; u8 *out; + u8 upll : 1; }; struct clk_programmable_layout { + u8 pres_mask; u8 pres_shift; u8 css_mask; u8 have_slck_mck; + u8 is_pres_direct; }; extern const struct clk_programmable_layout at91rm9200_programmable_layout; extern const struct clk_programmable_layout at91sam9g45_programmable_layout; extern const struct clk_programmable_layout at91sam9x5_programmable_layout; +struct clk_pcr_layout { + u32 offset; + u32 cmd; + u32 div_mask; + u32 gckcss_mask; + u32 pid_mask; +}; + +/** + * struct at91_clk_pms - Power management state for AT91 clock + * @rate: clock rate + * @parent_rate: clock parent rate + * @status: clock status (enabled or disabled) + * @parent: clock parent index + */ +struct at91_clk_pms { + unsigned long rate; + unsigned long parent_rate; + unsigned int status; + unsigned int parent; +}; + +#define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1)) +#define field_prep(_mask, _val) (((_val) << (ffs(_mask) - 1)) & (_mask)) + #define ndck(a, s) (a[s - 1].id + 1) #define nck(a) (a[ARRAY_SIZE(a) - 1].id + 1) struct pmc_data *pmc_data_allocate(unsigned int ncore, unsigned int nsystem, - unsigned int nperiph, unsigned int ngck); -void pmc_data_free(struct pmc_data *pmc_data); + unsigned int nperiph, unsigned int ngck, + unsigned int npck); int of_at91_get_clk_range(struct device_node *np, const char *propname, struct clk_range *range); -struct clk *of_clk_hw_pmc_get(struct of_phandle_args *clkspec, void *data); +struct clk_hw *of_clk_hw_pmc_get(struct of_phandle_args *clkspec, void *data); + +struct clk_hw * __init +at91_clk_register_audio_pll_frac(struct regmap *regmap, const char *name, + const char *parent_name); + +struct clk_hw * __init +at91_clk_register_audio_pll_pad(struct regmap *regmap, const char *name, + const char *parent_name); -struct clk * -at91_clk_register_generated(struct regmap *regmap, +struct clk_hw * __init +at91_clk_register_audio_pll_pmc(struct regmap *regmap, const char *name, + const char *parent_name); + +struct clk_hw * __init +at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock, + const struct clk_pcr_layout *layout, const char *name, const char **parent_names, - u8 num_parents, u8 id, bool pll_audio, - const struct clk_range *range); + u32 *mux_table, u8 num_parents, u8 id, + const struct clk_range *range, int chg_pid); -struct clk * +struct clk_hw * __init at91_clk_register_h32mx(struct regmap *regmap, const char *name, const char *parent_name); -struct clk * +struct clk_hw * __init +at91_clk_i2s_mux_register(struct regmap *regmap, const char *name, + const char * const *parent_names, + unsigned int num_parents, u8 bus_id); + +struct clk_hw * __init at91_clk_register_main_rc_osc(struct regmap *regmap, const char *name, u32 frequency, u32 accuracy); -struct clk * +struct clk_hw * __init at91_clk_register_main_osc(struct regmap *regmap, const char *name, const char *parent_name, bool bypass); -struct clk * +struct clk_hw * __init at91_clk_register_rm9200_main(struct regmap *regmap, const char *name, const char *parent_name); -struct clk * +struct clk_hw * __init at91_clk_register_sam9x5_main(struct regmap *regmap, const char *name, const char **parent_names, int num_parents); -struct clk * -at91_clk_register_master(struct regmap *regmap, const char *name, - int num_parents, const char **parent_names, - const struct clk_master_layout *layout, - const struct clk_master_characteristics *characteristics); +struct clk_hw * __init +at91_clk_register_master_pres(struct regmap *regmap, const char *name, + int num_parents, const char **parent_names, + const struct clk_master_layout *layout, + const struct clk_master_characteristics *characteristics, + spinlock_t *lock); -struct clk * +struct clk_hw * __init +at91_clk_register_master_div(struct regmap *regmap, const char *name, + const char *parent_names, + const struct clk_master_layout *layout, + const struct clk_master_characteristics *characteristics, + spinlock_t *lock, u32 flags); + +struct clk_hw * __init +at91_clk_sama7g5_register_master(struct regmap *regmap, + const char *name, int num_parents, + const char **parent_names, u32 *mux_table, + spinlock_t *lock, u8 id, bool critical, + int chg_pid); + +struct clk_hw * __init at91_clk_register_peripheral(struct regmap *regmap, const char *name, const char *parent_name, u32 id); -struct clk * -at91_clk_register_sam9x5_peripheral(struct regmap *regmap, +struct clk_hw * __init +at91_clk_register_sam9x5_peripheral(struct regmap *regmap, spinlock_t *lock, + const struct clk_pcr_layout *layout, const char *name, const char *parent_name, - u32 id, const struct clk_range *range); + u32 id, const struct clk_range *range, + int chg_pid, unsigned long flags); -struct clk * +struct clk_hw * __init at91_clk_register_pll(struct regmap *regmap, const char *name, const char *parent_name, u8 id, const struct clk_pll_layout *layout, const struct clk_pll_characteristics *characteristics); -struct clk * +struct clk_hw * __init at91_clk_register_plldiv(struct regmap *regmap, const char *name, const char *parent_name); -struct clk * +struct clk_hw * __init +sam9x60_clk_register_div_pll(struct regmap *regmap, spinlock_t *lock, + const char *name, const char *parent_name, u8 id, + const struct clk_pll_characteristics *characteristics, + const struct clk_pll_layout *layout, u32 flags); + +struct clk_hw * __init +sam9x60_clk_register_frac_pll(struct regmap *regmap, spinlock_t *lock, + const char *name, const char *parent_name, + struct clk_hw *parent_hw, u8 id, + const struct clk_pll_characteristics *characteristics, + const struct clk_pll_layout *layout, u32 flags); + +struct clk_hw * __init at91_clk_register_programmable(struct regmap *regmap, const char *name, const char **parent_names, u8 num_parents, u8 id, - const struct clk_programmable_layout *layout); + const struct clk_programmable_layout *layout, + u32 *mux_table); -struct clk * +struct clk_hw * __init at91_clk_register_sam9260_slow(struct regmap *regmap, const char *name, const char **parent_names, int num_parents); -struct clk * +struct clk_hw * __init at91sam9x5_clk_register_smd(struct regmap *regmap, const char *name, const char **parent_names, u8 num_parents); -struct clk * +struct clk_hw * __init at91_clk_register_system(struct regmap *regmap, const char *name, - const char *parent_name, u8 id); + const char *parent_name, u8 id, unsigned long flags); -struct clk * +struct clk_hw * __init at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name, const char **parent_names, u8 num_parents); -struct clk * +struct clk_hw * __init at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name, const char *parent_name); -struct clk * +struct clk_hw * __init +sam9x60_clk_register_usb(struct regmap *regmap, const char *name, + const char **parent_names, u8 num_parents); +struct clk_hw * __init at91rm9200_clk_register_usb(struct regmap *regmap, const char *name, const char *parent_name, const u32 *divisors); -struct clk * +struct clk_hw * __init at91_clk_register_utmi(struct regmap *regmap_pmc, struct regmap *regmap_sfr, const char *name, const char *parent_name); -#ifdef CONFIG_PM -void pmc_register_id(u8 id); -void pmc_register_pck(u8 pck); -#else -static inline void pmc_register_id(u8 id) {} -static inline void pmc_register_pck(u8 pck) {} -#endif +struct clk_hw * __init +at91_clk_sama7g5_register_utmi(struct regmap *regmap, const char *name, + const char *parent_name); #endif /* __PMC_H_ */ |