2 * arch/arm/mach-tegra/include/mach/clock.h
4 * Copyright (C) 2010 Google, Inc.
7 * Colin Cross <ccross@google.com>
9 * This software is licensed under the terms of the GNU General Public
10 * License version 2, as published by the Free Software Foundation, and
11 * may be copied, distributed, and modified under those terms.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
20 #ifndef __MACH_TEGRA_CLOCK_H
21 #define __MACH_TEGRA_CLOCK_H
23 #include <linux/list.h>
24 #include <asm/clkdev.h>
26 #define DIV_BUS (1 << 0)
27 #define DIV_U71 (1 << 1)
28 #define DIV_U71_FIXED (1 << 2)
29 #define DIV_2 (1 << 3)
30 #define DIV_U16 (1 << 4)
31 #define PLL_FIXED (1 << 5)
32 #define PLL_HAS_CPCON (1 << 6)
35 #define PERIPH_NO_RESET (1 << 9)
36 #define PERIPH_NO_ENB (1 << 10)
37 #define PERIPH_EMC_ENB (1 << 11)
38 #define PERIPH_MANUAL_RESET (1 << 12)
39 #define PLL_ALT_MISC_REG (1 << 13)
40 #define PLLU (1 << 14)
41 #define ENABLE_ON_INIT (1 << 28)
51 struct dvfs_process_id_table {
53 struct dvfs_table *table;
58 struct regulator *reg;
59 struct dvfs_table *table;
62 int process_id_table_length;
65 struct dvfs_process_id_table process_id_table[];
73 struct clk_pll_table {
74 unsigned long input_rate;
75 unsigned long output_rate;
83 void (*init)(struct clk *);
84 int (*enable)(struct clk *);
85 void (*disable)(struct clk *);
86 int (*set_parent)(struct clk *, struct clk *);
87 int (*set_rate)(struct clk *, unsigned long);
88 long (*round_rate)(struct clk *, unsigned long);
98 /* node for master clocks list */
99 struct list_head node;
100 struct list_head children; /* list of children */
101 struct list_head sibling; /* node for children */
102 #ifdef CONFIG_DEBUG_FS
104 struct dentry *parent_dent;
108 struct clk_lookup lookup;
110 unsigned long max_rate;
116 unsigned int clk_num;
117 enum clk_state state;
118 #ifdef CONFIG_DEBUG_FS
123 unsigned long input_min;
124 unsigned long input_max;
125 unsigned long cf_min;
126 unsigned long cf_max;
127 unsigned long vco_min;
128 unsigned long vco_max;
129 const struct clk_pll_table *pll_table;
136 const struct clk_mux_sel *inputs;
140 /* Virtual cpu clock */
148 struct clk_duplicate {
150 struct clk_lookup lookup;
153 struct tegra_clk_init_table {
160 void tegra2_init_clocks(void);
161 void tegra2_periph_reset_deassert(struct clk *c);
162 void tegra2_periph_reset_assert(struct clk *c);
163 void clk_init(struct clk *clk);
164 struct clk *tegra_get_clock_by_name(const char *name);
165 unsigned long clk_measure_input_freq(void);
166 void clk_disable_locked(struct clk *c);
167 int clk_enable_locked(struct clk *c);
168 int clk_set_parent_locked(struct clk *c, struct clk *parent);
169 int clk_set_rate_locked(struct clk *c, unsigned long rate);
170 int clk_reparent(struct clk *c, struct clk *parent);
171 void tegra_clk_init_from_table(struct tegra_clk_init_table *table);