| /* |
| * linux/arch/arm/mach-omap2/clock.h |
| * |
| * Copyright (C) 2005-2009 Texas Instruments, Inc. |
| * Copyright (C) 2004-2009 Nokia Corporation |
| * |
| * Contacts: |
| * Richard Woodruff <r-woodruff2@ti.com> |
| * Paul Walmsley |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #ifndef __ARCH_ARM_MACH_OMAP2_CLOCK_H |
| #define __ARCH_ARM_MACH_OMAP2_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 |
| |
| /* CM_CLKSEL2_PLL.CORE_CLK_SRC bits (2XXX) */ |
| #define CORE_CLK_SRC_32K 0x0 |
| #define CORE_CLK_SRC_DPLL 0x1 |
| #define CORE_CLK_SRC_DPLL_X2 0x2 |
| |
| /* OMAP2xxx CM_CLKEN_PLL.EN_DPLL bits - for omap2_get_dpll_rate() */ |
| #define OMAP2XXX_EN_DPLL_LPBYPASS 0x1 |
| #define OMAP2XXX_EN_DPLL_FRBYPASS 0x2 |
| #define OMAP2XXX_EN_DPLL_LOCKED 0x3 |
| |
| /* OMAP3xxx CM_CLKEN_PLL*.EN_*_DPLL bits - for omap2_get_dpll_rate() */ |
| #define OMAP3XXX_EN_DPLL_LPBYPASS 0x5 |
| #define OMAP3XXX_EN_DPLL_FRBYPASS 0x6 |
| #define OMAP3XXX_EN_DPLL_LOCKED 0x7 |
| |
| /* 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 |
| |
| 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); |
| 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); |
| int omap4_dpllmx_gatectrl_read(struct clk *clk); |
| void omap4_dpllmx_allow_gatectrl(struct clk *clk); |
| void omap4_dpllmx_deny_gatectrl(struct clk *clk); |
| |
| #ifdef CONFIG_OMAP_RESET_CLOCKS |
| void omap2_clk_disable_unused(struct clk *clk); |
| #else |
| #define omap2_clk_disable_unused NULL |
| #endif |
| |
| void omap2_init_clk_clkdm(struct clk *clk); |
| |
| /* clkt_clksel.c public functions */ |
| u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate, |
| u32 *new_div); |
| void omap2_init_clksel_parent(struct clk *clk); |
| unsigned long omap2_clksel_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); |
| |
| |
| #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_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 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[]; |
| |
| #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_omap2xxx_dpll_ops; |
| extern const struct clkops clkops_omap3_noncore_dpll_ops; |
| extern const struct clkops clkops_omap3_core_dpll_ops; |
| extern const struct clkops clkops_omap4_dpllmx_ops; |
| |
| #endif |