2 * TI Clock driver internal definitions
4 * Copyright (C) 2014 Texas Instruments, Inc
5 * Tero Kristo (t-kristo@ti.com)
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation version 2.
11 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
12 * kind, whether express or implied; without even the implied warranty
13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 #ifndef __DRIVERS_CLK_TI_CLOCK__
17 #define __DRIVERS_CLK_TI_CLOCK__
19 struct clk_omap_divider {
21 struct clk_omap_reg reg;
26 const struct clk_div_table *table;
30 #define to_clk_omap_divider(_hw) container_of(_hw, struct clk_omap_divider, hw)
34 struct clk_omap_reg reg;
43 #define to_clk_omap_mux(_hw) container_of(_hw, struct clk_omap_mux, hw)
56 #define CLKF_INDEX_POWER_OF_TWO (1 << 0)
57 #define CLKF_INDEX_STARTS_AT_ONE (1 << 1)
58 #define CLKF_SET_RATE_PARENT (1 << 2)
59 #define CLKF_OMAP3 (1 << 3)
60 #define CLKF_AM35XX (1 << 4)
63 #define CLKF_SET_BIT_TO_DISABLE (1 << 5)
64 #define CLKF_INTERFACE (1 << 6)
65 #define CLKF_SSI (1 << 7)
66 #define CLKF_DSS (1 << 8)
67 #define CLKF_HSOTGUSB (1 << 9)
68 #define CLKF_WAIT (1 << 10)
69 #define CLKF_NO_WAIT (1 << 11)
70 #define CLKF_HSDIV (1 << 12)
71 #define CLKF_CLKDM (1 << 13)
74 #define CLKF_LOW_POWER_STOP (1 << 5)
75 #define CLKF_LOCK (1 << 6)
76 #define CLKF_LOW_POWER_BYPASS (1 << 7)
77 #define CLKF_PER (1 << 8)
78 #define CLKF_CORE (1 << 9)
79 #define CLKF_J_TYPE (1 << 10)
82 #define CLKF_SW_SUP BIT(5)
83 #define CLKF_HW_SUP BIT(6)
84 #define CLKF_NO_IDLEST BIT(7)
86 #define CLK(dev, con, ck) \
97 const char *clkdm_name;
100 struct ti_clk *patch;
109 const char * const *parents;
113 struct ti_clk_divider {
132 /* Composite clock component types */
134 CLK_COMPONENT_TYPE_GATE = 0,
135 CLK_COMPONENT_TYPE_DIVIDER,
136 CLK_COMPONENT_TYPE_MUX,
137 CLK_COMPONENT_TYPE_MAX,
141 * struct ti_dt_clk - OMAP DT clock alias declarations
142 * @lk: clock lookup definition
143 * @node_name: clock DT node to map to
146 struct clk_lookup lk;
150 #define DT_CLK(dev, con, name) \
159 /* CLKCTRL type definitions */
160 struct omap_clkctrl_div_data {
166 struct omap_clkctrl_bit_data {
169 const char * const *parents;
173 struct omap_clkctrl_reg_data {
175 const struct omap_clkctrl_bit_data *bit_data;
178 const char *clkdm_name;
181 struct omap_clkctrl_data {
183 const struct omap_clkctrl_reg_data *regs;
186 extern const struct omap_clkctrl_data omap4_clkctrl_data[];
187 extern const struct omap_clkctrl_data omap5_clkctrl_data[];
188 extern const struct omap_clkctrl_data dra7_clkctrl_data[];
189 extern const struct omap_clkctrl_data dra7_clkctrl_compat_data[];
190 extern struct ti_dt_clk dra7xx_compat_clks[];
191 extern const struct omap_clkctrl_data am3_clkctrl_data[];
192 extern const struct omap_clkctrl_data am3_clkctrl_compat_data[];
193 extern struct ti_dt_clk am33xx_compat_clks[];
194 extern const struct omap_clkctrl_data am4_clkctrl_data[];
195 extern const struct omap_clkctrl_data am4_clkctrl_compat_data[];
196 extern struct ti_dt_clk am43xx_compat_clks[];
197 extern const struct omap_clkctrl_data am438x_clkctrl_data[];
198 extern const struct omap_clkctrl_data am438x_clkctrl_compat_data[];
199 extern const struct omap_clkctrl_data dm814_clkctrl_data[];
200 extern const struct omap_clkctrl_data dm816_clkctrl_data[];
202 typedef void (*ti_of_clk_init_cb_t)(void *, struct device_node *);
204 struct clk *ti_clk_register(struct device *dev, struct clk_hw *hw,
206 int ti_clk_add_alias(struct device *dev, struct clk *clk, const char *con);
207 void ti_clk_add_aliases(void);
209 void ti_clk_latch(struct clk_omap_reg *reg, s8 shift);
211 struct clk_hw *ti_clk_build_component_mux(struct ti_clk_mux *setup);
213 int ti_clk_parse_divider_data(int *div_table, int num_dividers, int max_div,
215 const struct clk_div_table **table);
217 int ti_clk_get_reg_addr(struct device_node *node, int index,
218 struct clk_omap_reg *reg);
219 void ti_dt_clocks_register(struct ti_dt_clk *oclks);
220 int ti_clk_retry_init(struct device_node *node, void *user,
221 ti_of_clk_init_cb_t func);
222 int ti_clk_add_component(struct device_node *node, struct clk_hw *hw, int type);
224 void omap2_init_clk_hw_omap_clocks(struct clk_hw *hw);
225 int of_ti_clk_autoidle_setup(struct device_node *node);
226 void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks);
228 extern const struct clk_hw_omap_ops clkhwops_omap3_dpll;
229 extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx;
230 extern const struct clk_hw_omap_ops clkhwops_wait;
231 extern const struct clk_hw_omap_ops clkhwops_iclk;
232 extern const struct clk_hw_omap_ops clkhwops_iclk_wait;
233 extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;
234 extern const struct clk_hw_omap_ops clkhwops_omap3430es2_dss_usbhost_wait;
235 extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_hsotgusb_wait;
236 extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_dss_usbhost_wait;
237 extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_ssi_wait;
238 extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait;
239 extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_wait;
241 extern const struct clk_ops ti_clk_divider_ops;
242 extern const struct clk_ops ti_clk_mux_ops;
243 extern const struct clk_ops omap_gate_clk_ops;
245 extern struct ti_clk_features ti_clk_features;
247 void omap2_init_clk_clkdm(struct clk_hw *hw);
248 int omap2_clkops_enable_clkdm(struct clk_hw *hw);
249 void omap2_clkops_disable_clkdm(struct clk_hw *hw);
251 int omap2_dflt_clk_enable(struct clk_hw *hw);
252 void omap2_dflt_clk_disable(struct clk_hw *hw);
253 int omap2_dflt_clk_is_enabled(struct clk_hw *hw);
254 void omap2_clk_dflt_find_companion(struct clk_hw_omap *clk,
255 struct clk_omap_reg *other_reg,
257 void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk,
258 struct clk_omap_reg *idlest_reg,
259 u8 *idlest_bit, u8 *idlest_val);
261 void omap2_clkt_iclk_allow_idle(struct clk_hw_omap *clk);
262 void omap2_clkt_iclk_deny_idle(struct clk_hw_omap *clk);
264 u8 omap2_init_dpll_parent(struct clk_hw *hw);
265 int omap3_noncore_dpll_enable(struct clk_hw *hw);
266 void omap3_noncore_dpll_disable(struct clk_hw *hw);
267 int omap3_noncore_dpll_set_parent(struct clk_hw *hw, u8 index);
268 int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
269 unsigned long parent_rate);
270 int omap3_noncore_dpll_set_rate_and_parent(struct clk_hw *hw,
272 unsigned long parent_rate,
274 int omap3_noncore_dpll_determine_rate(struct clk_hw *hw,
275 struct clk_rate_request *req);
276 long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate,
277 unsigned long *parent_rate);
278 unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
279 unsigned long parent_rate);
282 * OMAP3_DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks
283 * that are sourced by DPLL5, and both of these require this clock
284 * to be at 120 MHz for proper operation.
286 #define OMAP3_DPLL5_FREQ_FOR_USBHOST 120000000
288 unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate);
289 int omap3_dpll4_set_rate(struct clk_hw *clk, unsigned long rate,
290 unsigned long parent_rate);
291 int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
292 unsigned long parent_rate, u8 index);
293 int omap3_dpll5_set_rate(struct clk_hw *hw, unsigned long rate,
294 unsigned long parent_rate);
295 void omap3_clk_lock_dpll5(void);
297 unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw,
298 unsigned long parent_rate);
299 long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw,
300 unsigned long target_rate,
301 unsigned long *parent_rate);
302 int omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw,
303 struct clk_rate_request *req);
305 extern struct ti_clk_ll_ops *ti_clk_ll_ops;