| /* |
| * 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; |
| }; |
| |
| 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)(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 *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, 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; |
| 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 |