blob: 13c37f48d9d69d6f4b950671cc735b1ed49fefba [file] [log] [blame]
* TI Clock driver internal definitions
* Copyright (C) 2014 Texas Instruments, Inc
* Tero Kristo (
* 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
* GNU General Public License for more details.
enum {
/* 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 {
* 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;