diff options
Diffstat (limited to 'arch/arm/mach-omap2/clock.h')
| -rw-r--r-- | arch/arm/mach-omap2/clock.h | 102 |
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 @@ /* * linux/arch/arm/mach-omap2/clock.h * - * Copyright (C) 2005-2008 Texas Instruments, Inc. - * Copyright (C) 2004-2008 Nokia Corporation + * Copyright (C) 2005-2009 Texas Instruments, Inc. + * Copyright (C) 2004-2009 Nokia Corporation * * Contacts: * Richard Woodruff <r-woodruff2@ti.com> @@ -16,7 +16,7 @@ #ifndef __ARCH_ARM_MACH_OMAP2_CLOCK_H #define __ARCH_ARM_MACH_OMAP2_CLOCK_H -#include <mach/clock.h> +#include <plat/clock.h> /* The maximum error between a target DPLL rate and the rounded rate in Hz */ #define DEFAULT_DPLL_RATE_TOLERANCE 50000 @@ -36,7 +36,21 @@ #define OMAP3XXX_EN_DPLL_FRBYPASS 0x6 #define OMAP3XXX_EN_DPLL_LOCKED 0x7 -int omap2_clk_init(void); +/* OMAP4xxx CM_CLKMODE_DPLL*.EN_*_DPLL bits - for omap2_get_dpll_rate() */ +#define OMAP4XXX_EN_DPLL_MNBYPASS 0x4 +#define OMAP4XXX_EN_DPLL_LPBYPASS 0x5 +#define OMAP4XXX_EN_DPLL_FRBYPASS 0x6 +#define OMAP4XXX_EN_DPLL_LOCKED 0x7 + +/* CM_CLKEN_PLL*.EN* bit values - not all are available for every DPLL */ +#define DPLL_LOW_POWER_STOP 0x1 +#define DPLL_LOW_POWER_BYPASS 0x5 +#define DPLL_LOCKED 0x7 + +/* DPLL Type and DCO Selection Flags */ +#define DPLL_J_TYPE 0x1 +#define DPLL_NO_DCO_SEL 0x2 + int omap2_clk_enable(struct clk *clk); void omap2_clk_disable(struct clk *clk); long 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); int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent); int omap2_dpll_set_rate_tolerance(struct clk *clk, unsigned int tolerance); long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate); +unsigned long omap3_dpll_recalc(struct clk *clk); +unsigned long omap3_clkoutx2_recalc(struct clk *clk); +void omap3_dpll_allow_idle(struct clk *clk); +void omap3_dpll_deny_idle(struct clk *clk); +u32 omap3_dpll_autoidle_read(struct clk *clk); +int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate); +int omap3_noncore_dpll_enable(struct clk *clk); +void omap3_noncore_dpll_disable(struct clk *clk); #ifdef CONFIG_OMAP_RESET_CLOCKS void omap2_clk_disable_unused(struct clk *clk); @@ -59,42 +81,70 @@ u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate, u32 *new_div); u32 omap2_clksel_to_divisor(struct clk *clk, u32 field_val); u32 omap2_divisor_to_clksel(struct clk *clk, u32 div); -unsigned long omap2_fixed_divisor_recalc(struct clk *clk); long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate); int omap2_clksel_set_rate(struct clk *clk, unsigned long rate); +int omap2_clksel_set_parent(struct clk *clk, struct clk *new_parent); u32 omap2_get_dpll_rate(struct clk *clk); +void omap2_init_dpll_parent(struct clk *clk); int omap2_wait_clock_ready(void __iomem *reg, u32 cval, const char *name); -void omap2_clk_prepare_for_reboot(void); + + +#ifdef CONFIG_ARCH_OMAP2 +void omap2xxx_clk_prepare_for_reboot(void); +#else +static inline void omap2xxx_clk_prepare_for_reboot(void) +{ +} +#endif + +#ifdef CONFIG_ARCH_OMAP3 +void omap3_clk_prepare_for_reboot(void); +#else +static inline void omap3_clk_prepare_for_reboot(void) +{ +} +#endif + +#ifdef CONFIG_ARCH_OMAP4 +void omap4_clk_prepare_for_reboot(void); +#else +static inline void omap4_clk_prepare_for_reboot(void) +{ +} +#endif + int omap2_dflt_clk_enable(struct clk *clk); void omap2_dflt_clk_disable(struct clk *clk); void omap2_clk_dflt_find_companion(struct clk *clk, void __iomem **other_reg, u8 *other_bit); void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg, - u8 *idlest_bit); + u8 *idlest_bit, u8 *idlest_val); +int omap2_clk_switch_mpurate_at_boot(const char *mpurate_ck_name); +void omap2_clk_print_new_rates(const char *hfclkin_ck_name, + const char *core_ck_name, + const char *mpu_ck_name); + +extern u8 cpu_mask; extern const struct clkops clkops_omap2_dflt_wait; +extern const struct clkops clkops_dummy; extern const struct clkops clkops_omap2_dflt; -extern u8 cpu_mask; +extern struct clk_functions omap2_clk_functions; +extern struct clk *vclk, *sclk; + +extern const struct clksel_rate gpt_32k_rates[]; +extern const struct clksel_rate gpt_sys_rates[]; +extern const struct clksel_rate gfx_l3_rates[]; -/* clksel_rate data common to 24xx/343x */ -static const struct clksel_rate gpt_32k_rates[] = { - { .div = 1, .val = 0, .flags = RATE_IN_24XX | RATE_IN_343X | DEFAULT_RATE }, - { .div = 0 } -}; - -static const struct clksel_rate gpt_sys_rates[] = { - { .div = 1, .val = 1, .flags = RATE_IN_24XX | RATE_IN_343X | DEFAULT_RATE }, - { .div = 0 } -}; - -static const struct clksel_rate gfx_l3_rates[] = { - { .div = 1, .val = 1, .flags = RATE_IN_24XX | RATE_IN_343X }, - { .div = 2, .val = 2, .flags = RATE_IN_24XX | RATE_IN_343X | DEFAULT_RATE }, - { .div = 3, .val = 3, .flags = RATE_IN_243X | RATE_IN_343X }, - { .div = 4, .val = 4, .flags = RATE_IN_243X | RATE_IN_343X }, - { .div = 0 } -}; +#if defined(CONFIG_ARCH_OMAP2) && defined(CONFIG_CPU_FREQ) +extern void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table); +extern void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table); +#else +#define omap2_clk_init_cpufreq_table 0 +#define omap2_clk_exit_cpufreq_table 0 +#endif +extern const struct clkops clkops_omap3_noncore_dpll_ops; #endif |