aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/clock.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-omap2/clock.h')
-rw-r--r--arch/arm/mach-omap2/clock.h102
1 files changed, 76 insertions, 26 deletions
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 9ae7540f8af2..ad8a1f7c1afc 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -1,8 +1,8 @@
1/* 1/*
2 * linux/arch/arm/mach-omap2/clock.h 2 * linux/arch/arm/mach-omap2/clock.h
3 * 3 *
4 * Copyright (C) 2005-2008 Texas Instruments, Inc. 4 * Copyright (C) 2005-2009 Texas Instruments, Inc.
5 * Copyright (C) 2004-2008 Nokia Corporation 5 * Copyright (C) 2004-2009 Nokia Corporation
6 * 6 *
7 * Contacts: 7 * Contacts:
8 * Richard Woodruff <r-woodruff2@ti.com> 8 * Richard Woodruff <r-woodruff2@ti.com>
@@ -16,7 +16,7 @@
16#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK_H 16#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK_H
17#define __ARCH_ARM_MACH_OMAP2_CLOCK_H 17#define __ARCH_ARM_MACH_OMAP2_CLOCK_H
18 18
19#include <mach/clock.h> 19#include <plat/clock.h>
20 20
21/* The maximum error between a target DPLL rate and the rounded rate in Hz */ 21/* The maximum error between a target DPLL rate and the rounded rate in Hz */
22#define DEFAULT_DPLL_RATE_TOLERANCE 50000 22#define DEFAULT_DPLL_RATE_TOLERANCE 50000
@@ -36,7 +36,21 @@
36#define OMAP3XXX_EN_DPLL_FRBYPASS 0x6 36#define OMAP3XXX_EN_DPLL_FRBYPASS 0x6
37#define OMAP3XXX_EN_DPLL_LOCKED 0x7 37#define OMAP3XXX_EN_DPLL_LOCKED 0x7
38 38
39int omap2_clk_init(void); 39/* OMAP4xxx CM_CLKMODE_DPLL*.EN_*_DPLL bits - for omap2_get_dpll_rate() */
40#define OMAP4XXX_EN_DPLL_MNBYPASS 0x4
41#define OMAP4XXX_EN_DPLL_LPBYPASS 0x5
42#define OMAP4XXX_EN_DPLL_FRBYPASS 0x6
43#define OMAP4XXX_EN_DPLL_LOCKED 0x7
44
45/* CM_CLKEN_PLL*.EN* bit values - not all are available for every DPLL */
46#define DPLL_LOW_POWER_STOP 0x1
47#define DPLL_LOW_POWER_BYPASS 0x5
48#define DPLL_LOCKED 0x7
49
50/* DPLL Type and DCO Selection Flags */
51#define DPLL_J_TYPE 0x1
52#define DPLL_NO_DCO_SEL 0x2
53
40int omap2_clk_enable(struct clk *clk); 54int omap2_clk_enable(struct clk *clk);
41void omap2_clk_disable(struct clk *clk); 55void omap2_clk_disable(struct clk *clk);
42long omap2_clk_round_rate(struct clk *clk, unsigned long rate); 56long omap2_clk_round_rate(struct clk *clk, unsigned long rate);
@@ -44,6 +58,14 @@ int omap2_clk_set_rate(struct clk *clk, unsigned long rate);
44int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent); 58int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent);
45int omap2_dpll_set_rate_tolerance(struct clk *clk, unsigned int tolerance); 59int omap2_dpll_set_rate_tolerance(struct clk *clk, unsigned int tolerance);
46long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate); 60long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate);
61unsigned long omap3_dpll_recalc(struct clk *clk);
62unsigned long omap3_clkoutx2_recalc(struct clk *clk);
63void omap3_dpll_allow_idle(struct clk *clk);
64void omap3_dpll_deny_idle(struct clk *clk);
65u32 omap3_dpll_autoidle_read(struct clk *clk);
66int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate);
67int omap3_noncore_dpll_enable(struct clk *clk);
68void omap3_noncore_dpll_disable(struct clk *clk);
47 69
48#ifdef CONFIG_OMAP_RESET_CLOCKS 70#ifdef CONFIG_OMAP_RESET_CLOCKS
49void omap2_clk_disable_unused(struct clk *clk); 71void omap2_clk_disable_unused(struct clk *clk);
@@ -59,42 +81,70 @@ u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate,
59 u32 *new_div); 81 u32 *new_div);
60u32 omap2_clksel_to_divisor(struct clk *clk, u32 field_val); 82u32 omap2_clksel_to_divisor(struct clk *clk, u32 field_val);
61u32 omap2_divisor_to_clksel(struct clk *clk, u32 div); 83u32 omap2_divisor_to_clksel(struct clk *clk, u32 div);
62unsigned long omap2_fixed_divisor_recalc(struct clk *clk);
63long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate); 84long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate);
64int omap2_clksel_set_rate(struct clk *clk, unsigned long rate); 85int omap2_clksel_set_rate(struct clk *clk, unsigned long rate);
86int omap2_clksel_set_parent(struct clk *clk, struct clk *new_parent);
65u32 omap2_get_dpll_rate(struct clk *clk); 87u32 omap2_get_dpll_rate(struct clk *clk);
88void omap2_init_dpll_parent(struct clk *clk);
66int omap2_wait_clock_ready(void __iomem *reg, u32 cval, const char *name); 89int omap2_wait_clock_ready(void __iomem *reg, u32 cval, const char *name);
67void omap2_clk_prepare_for_reboot(void); 90
91
92#ifdef CONFIG_ARCH_OMAP2
93void omap2xxx_clk_prepare_for_reboot(void);
94#else
95static inline void omap2xxx_clk_prepare_for_reboot(void)
96{
97}
98#endif
99
100#ifdef CONFIG_ARCH_OMAP3
101void omap3_clk_prepare_for_reboot(void);
102#else
103static inline void omap3_clk_prepare_for_reboot(void)
104{
105}
106#endif
107
108#ifdef CONFIG_ARCH_OMAP4
109void omap4_clk_prepare_for_reboot(void);
110#else
111static inline void omap4_clk_prepare_for_reboot(void)
112{
113}
114#endif
115
68int omap2_dflt_clk_enable(struct clk *clk); 116int omap2_dflt_clk_enable(struct clk *clk);
69void omap2_dflt_clk_disable(struct clk *clk); 117void omap2_dflt_clk_disable(struct clk *clk);
70void omap2_clk_dflt_find_companion(struct clk *clk, void __iomem **other_reg, 118void omap2_clk_dflt_find_companion(struct clk *clk, void __iomem **other_reg,
71 u8 *other_bit); 119 u8 *other_bit);
72void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg, 120void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg,
73 u8 *idlest_bit); 121 u8 *idlest_bit, u8 *idlest_val);
122int omap2_clk_switch_mpurate_at_boot(const char *mpurate_ck_name);
123void omap2_clk_print_new_rates(const char *hfclkin_ck_name,
124 const char *core_ck_name,
125 const char *mpu_ck_name);
126
127extern u8 cpu_mask;
74 128
75extern const struct clkops clkops_omap2_dflt_wait; 129extern const struct clkops clkops_omap2_dflt_wait;
130extern const struct clkops clkops_dummy;
76extern const struct clkops clkops_omap2_dflt; 131extern const struct clkops clkops_omap2_dflt;
77 132
78extern u8 cpu_mask; 133extern struct clk_functions omap2_clk_functions;
134extern struct clk *vclk, *sclk;
135
136extern const struct clksel_rate gpt_32k_rates[];
137extern const struct clksel_rate gpt_sys_rates[];
138extern const struct clksel_rate gfx_l3_rates[];
79 139
80/* clksel_rate data common to 24xx/343x */ 140#if defined(CONFIG_ARCH_OMAP2) && defined(CONFIG_CPU_FREQ)
81static const struct clksel_rate gpt_32k_rates[] = { 141extern void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
82 { .div = 1, .val = 0, .flags = RATE_IN_24XX | RATE_IN_343X | DEFAULT_RATE }, 142extern void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table);
83 { .div = 0 } 143#else
84}; 144#define omap2_clk_init_cpufreq_table 0
85 145#define omap2_clk_exit_cpufreq_table 0
86static const struct clksel_rate gpt_sys_rates[] = { 146#endif
87 { .div = 1, .val = 1, .flags = RATE_IN_24XX | RATE_IN_343X | DEFAULT_RATE },
88 { .div = 0 }
89};
90
91static const struct clksel_rate gfx_l3_rates[] = {
92 { .div = 1, .val = 1, .flags = RATE_IN_24XX | RATE_IN_343X },
93 { .div = 2, .val = 2, .flags = RATE_IN_24XX | RATE_IN_343X | DEFAULT_RATE },
94 { .div = 3, .val = 3, .flags = RATE_IN_243X | RATE_IN_343X },
95 { .div = 4, .val = 4, .flags = RATE_IN_243X | RATE_IN_343X },
96 { .div = 0 }
97};
98 147
148extern const struct clkops clkops_omap3_noncore_dpll_ops;
99 149
100#endif 150#endif