/* * 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__ struct clk_omap_divider { struct clk_hw hw; struct clk_omap_reg reg; u8 shift; u8 width; u8 flags; const struct clk_div_table *table; }; #define to_clk_omap_divider(_hw) container_of(_hw, struct clk_omap_divider, hw) struct clk_omap_mux { struct clk_hw hw; struct clk_omap_reg reg; u32 *table; u32 mask; u8 shift; u8 flags; }; #define to_clk_omap_mux(_hw) container_of(_hw, struct clk_omap_mux, hw) 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 * const *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, \ } /* CLKCTRL type definitions */ struct omap_clkctrl_div_data { const int *dividers; int max_div; }; struct omap_clkctrl_bit_data { u8 bit; u8 type; const char * const *parents; const void *data; }; struct omap_clkctrl_reg_data { u16 offset; const struct omap_clkctrl_bit_data *bit_data; u16 flags; const char *parent; const char *clkdm_name; }; struct omap_clkctrl_data { u32 addr; const struct omap_clkctrl_reg_data *regs; }; extern const struct omap_clkctrl_data omap4_clkctrl_data[]; #define CLKF_SW_SUP BIT(0) #define CLKF_HW_SUP BIT(1) #define CLKF_NO_IDLEST BIT(2) typedef void (*ti_of_clk_init_cb_t)(void *, 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 *ti_clk_register(struct device *dev, struct clk_hw *hw, const char *con); int ti_clk_add_alias(struct device *dev, struct clk *clk, const char *con); void ti_clk_add_aliases(void); 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); int ti_clk_parse_divider_data(int *div_table, int num_dividers, int max_div, u8 flags, u8 *width, const struct clk_div_table **table); 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); int ti_clk_get_reg_addr(struct device_node *node, int index, struct clk_omap_reg *reg); void ti_dt_clocks_register(struct ti_dt_clk *oclks); int ti_clk_retry_init(struct device_node *node, void *user, 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; extern const struct clk_ops omap_gate_clk_ops; void omap2_init_clk_clkdm(struct clk_hw *hw); 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, struct clk_omap_reg *other_reg, u8 *other_bit); void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk, struct clk_omap_reg *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