287 lines
7.8 KiB
C
287 lines
7.8 KiB
C
/*
|
|
* TI Clock driver internal definitions
|
|
*
|
|
* Copyright (C) 2014 Texas Instruments, Inc
|
|
* Tero Kristo (t-kristo@ti.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 version 2.
|
|
*
|
|
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
|
|
* kind, whether express or implied; without even the implied warranty
|
|
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
#ifndef __DRIVERS_CLK_TI_CLOCK__
|
|
#define __DRIVERS_CLK_TI_CLOCK__
|
|
|
|
enum {
|
|
TI_CLK_FIXED,
|
|
TI_CLK_MUX,
|
|
TI_CLK_DIVIDER,
|
|
TI_CLK_COMPOSITE,
|
|
TI_CLK_FIXED_FACTOR,
|
|
TI_CLK_GATE,
|
|
TI_CLK_DPLL,
|
|
};
|
|
|
|
/* Global flags */
|
|
#define CLKF_INDEX_POWER_OF_TWO (1 << 0)
|
|
#define CLKF_INDEX_STARTS_AT_ONE (1 << 1)
|
|
#define CLKF_SET_RATE_PARENT (1 << 2)
|
|
#define CLKF_OMAP3 (1 << 3)
|
|
#define CLKF_AM35XX (1 << 4)
|
|
|
|
/* Gate flags */
|
|
#define CLKF_SET_BIT_TO_DISABLE (1 << 5)
|
|
#define CLKF_INTERFACE (1 << 6)
|
|
#define CLKF_SSI (1 << 7)
|
|
#define CLKF_DSS (1 << 8)
|
|
#define CLKF_HSOTGUSB (1 << 9)
|
|
#define CLKF_WAIT (1 << 10)
|
|
#define CLKF_NO_WAIT (1 << 11)
|
|
#define CLKF_HSDIV (1 << 12)
|
|
#define CLKF_CLKDM (1 << 13)
|
|
|
|
/* DPLL flags */
|
|
#define CLKF_LOW_POWER_STOP (1 << 5)
|
|
#define CLKF_LOCK (1 << 6)
|
|
#define CLKF_LOW_POWER_BYPASS (1 << 7)
|
|
#define CLKF_PER (1 << 8)
|
|
#define CLKF_CORE (1 << 9)
|
|
#define CLKF_J_TYPE (1 << 10)
|
|
|
|
#define CLK(dev, con, ck) \
|
|
{ \
|
|
.lk = { \
|
|
.dev_id = dev, \
|
|
.con_id = con, \
|
|
}, \
|
|
.clk = ck, \
|
|
}
|
|
|
|
struct ti_clk {
|
|
const char *name;
|
|
const char *clkdm_name;
|
|
int type;
|
|
void *data;
|
|
struct ti_clk *patch;
|
|
struct clk *clk;
|
|
};
|
|
|
|
struct ti_clk_alias {
|
|
struct ti_clk *clk;
|
|
struct clk_lookup lk;
|
|
struct list_head link;
|
|
};
|
|
|
|
struct ti_clk_fixed {
|
|
u32 frequency;
|
|
u16 flags;
|
|
};
|
|
|
|
struct ti_clk_mux {
|
|
u8 bit_shift;
|
|
int num_parents;
|
|
u16 reg;
|
|
u8 module;
|
|
const char **parents;
|
|
u16 flags;
|
|
};
|
|
|
|
struct ti_clk_divider {
|
|
const char *parent;
|
|
u8 bit_shift;
|
|
u16 max_div;
|
|
u16 reg;
|
|
u8 module;
|
|
int *dividers;
|
|
int num_dividers;
|
|
u16 flags;
|
|
};
|
|
|
|
struct ti_clk_fixed_factor {
|
|
const char *parent;
|
|
u16 div;
|
|
u16 mult;
|
|
u16 flags;
|
|
};
|
|
|
|
struct ti_clk_gate {
|
|
const char *parent;
|
|
u8 bit_shift;
|
|
u16 reg;
|
|
u8 module;
|
|
u16 flags;
|
|
};
|
|
|
|
struct ti_clk_composite {
|
|
struct ti_clk_divider *divider;
|
|
struct ti_clk_mux *mux;
|
|
struct ti_clk_gate *gate;
|
|
u16 flags;
|
|
};
|
|
|
|
struct ti_clk_clkdm_gate {
|
|
const char *parent;
|
|
u16 flags;
|
|
};
|
|
|
|
struct ti_clk_dpll {
|
|
int num_parents;
|
|
u16 control_reg;
|
|
u16 idlest_reg;
|
|
u16 autoidle_reg;
|
|
u16 mult_div1_reg;
|
|
u8 module;
|
|
const char **parents;
|
|
u16 flags;
|
|
u8 modes;
|
|
u32 mult_mask;
|
|
u32 div1_mask;
|
|
u32 enable_mask;
|
|
u32 autoidle_mask;
|
|
u32 freqsel_mask;
|
|
u32 idlest_mask;
|
|
u32 dco_mask;
|
|
u32 sddiv_mask;
|
|
u16 max_multiplier;
|
|
u16 max_divider;
|
|
u8 min_divider;
|
|
u8 auto_recal_bit;
|
|
u8 recal_en_bit;
|
|
u8 recal_st_bit;
|
|
};
|
|
|
|
/* Composite clock component types */
|
|
enum {
|
|
CLK_COMPONENT_TYPE_GATE = 0,
|
|
CLK_COMPONENT_TYPE_DIVIDER,
|
|
CLK_COMPONENT_TYPE_MUX,
|
|
CLK_COMPONENT_TYPE_MAX,
|
|
};
|
|
|
|
/**
|
|
* struct ti_dt_clk - OMAP DT clock alias declarations
|
|
* @lk: clock lookup definition
|
|
* @node_name: clock DT node to map to
|
|
*/
|
|
struct ti_dt_clk {
|
|
struct clk_lookup lk;
|
|
char *node_name;
|
|
};
|
|
|
|
#define DT_CLK(dev, con, name) \
|
|
{ \
|
|
.lk = { \
|
|
.dev_id = dev, \
|
|
.con_id = con, \
|
|
}, \
|
|
.node_name = name, \
|
|
}
|
|
|
|
typedef void (*ti_of_clk_init_cb_t)(struct clk_hw *, struct device_node *);
|
|
|
|
struct clk *ti_clk_register_gate(struct ti_clk *setup);
|
|
struct clk *ti_clk_register_interface(struct ti_clk *setup);
|
|
struct clk *ti_clk_register_mux(struct ti_clk *setup);
|
|
struct clk *ti_clk_register_divider(struct ti_clk *setup);
|
|
struct clk *ti_clk_register_composite(struct ti_clk *setup);
|
|
struct clk *ti_clk_register_dpll(struct ti_clk *setup);
|
|
|
|
struct clk_hw *ti_clk_build_component_div(struct ti_clk_divider *setup);
|
|
struct clk_hw *ti_clk_build_component_gate(struct ti_clk_gate *setup);
|
|
struct clk_hw *ti_clk_build_component_mux(struct ti_clk_mux *setup);
|
|
|
|
void ti_clk_patch_legacy_clks(struct ti_clk **patch);
|
|
struct clk *ti_clk_register_clk(struct ti_clk *setup);
|
|
int ti_clk_register_legacy_clks(struct ti_clk_alias *clks);
|
|
|
|
void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index);
|
|
void ti_dt_clocks_register(struct ti_dt_clk *oclks);
|
|
int ti_clk_retry_init(struct device_node *node, struct clk_hw *hw,
|
|
ti_of_clk_init_cb_t func);
|
|
int ti_clk_add_component(struct device_node *node, struct clk_hw *hw, int type);
|
|
|
|
void omap2_init_clk_hw_omap_clocks(struct clk_hw *hw);
|
|
int of_ti_clk_autoidle_setup(struct device_node *node);
|
|
void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks);
|
|
|
|
extern const struct clk_hw_omap_ops clkhwops_omap3_dpll;
|
|
extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx;
|
|
extern const struct clk_hw_omap_ops clkhwops_wait;
|
|
extern const struct clk_hw_omap_ops clkhwops_iclk;
|
|
extern const struct clk_hw_omap_ops clkhwops_iclk_wait;
|
|
extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;
|
|
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_dss_usbhost_wait;
|
|
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_hsotgusb_wait;
|
|
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_dss_usbhost_wait;
|
|
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_ssi_wait;
|
|
extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait;
|
|
extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_wait;
|
|
|
|
extern const struct clk_ops ti_clk_divider_ops;
|
|
extern const struct clk_ops ti_clk_mux_ops;
|
|
|
|
int omap2_clkops_enable_clkdm(struct clk_hw *hw);
|
|
void omap2_clkops_disable_clkdm(struct clk_hw *hw);
|
|
|
|
int omap2_dflt_clk_enable(struct clk_hw *hw);
|
|
void omap2_dflt_clk_disable(struct clk_hw *hw);
|
|
int omap2_dflt_clk_is_enabled(struct clk_hw *hw);
|
|
void omap2_clk_dflt_find_companion(struct clk_hw_omap *clk,
|
|
void __iomem **other_reg,
|
|
u8 *other_bit);
|
|
void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk,
|
|
void __iomem **idlest_reg,
|
|
u8 *idlest_bit, u8 *idlest_val);
|
|
|
|
void omap2_clkt_iclk_allow_idle(struct clk_hw_omap *clk);
|
|
void omap2_clkt_iclk_deny_idle(struct clk_hw_omap *clk);
|
|
|
|
u8 omap2_init_dpll_parent(struct clk_hw *hw);
|
|
int omap3_noncore_dpll_enable(struct clk_hw *hw);
|
|
void omap3_noncore_dpll_disable(struct clk_hw *hw);
|
|
int omap3_noncore_dpll_set_parent(struct clk_hw *hw, u8 index);
|
|
int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
|
|
unsigned long parent_rate);
|
|
int omap3_noncore_dpll_set_rate_and_parent(struct clk_hw *hw,
|
|
unsigned long rate,
|
|
unsigned long parent_rate,
|
|
u8 index);
|
|
int omap3_noncore_dpll_determine_rate(struct clk_hw *hw,
|
|
struct clk_rate_request *req);
|
|
long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate,
|
|
unsigned long *parent_rate);
|
|
unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
|
|
unsigned long parent_rate);
|
|
|
|
/*
|
|
* OMAP3_DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks
|
|
* that are sourced by DPLL5, and both of these require this clock
|
|
* to be at 120 MHz for proper operation.
|
|
*/
|
|
#define OMAP3_DPLL5_FREQ_FOR_USBHOST 120000000
|
|
|
|
unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate);
|
|
int omap3_dpll4_set_rate(struct clk_hw *clk, unsigned long rate,
|
|
unsigned long parent_rate);
|
|
int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
|
|
unsigned long parent_rate, u8 index);
|
|
int omap3_dpll5_set_rate(struct clk_hw *hw, unsigned long rate,
|
|
unsigned long parent_rate);
|
|
void omap3_clk_lock_dpll5(void);
|
|
|
|
unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw,
|
|
unsigned long parent_rate);
|
|
long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw,
|
|
unsigned long target_rate,
|
|
unsigned long *parent_rate);
|
|
int omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw,
|
|
struct clk_rate_request *req);
|
|
|
|
extern struct ti_clk_ll_ops *ti_clk_ll_ops;
|
|
|
|
#endif
|