[deliverable/linux.git] / arch / arm / mach-omap2 / clock.h

/*
 *  linux/arch/arm/mach-omap2/clock.h
 *
 *  Copyright (C) 2005-2009 Texas Instruments, Inc.
 *  Copyright (C) 2004-2011 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 <linux/kernel.h>
#include <linux/list.h>

#include <linux/clkdev.h>
#include <linux/clk-provider.h>

struct omap_clk {
	u16				cpu;
	struct clk_lookup		lk;
};

#define CLK(dev, con, ck, cp)		\
	{				\
		 .cpu = cp,		\
		.lk = {			\
			.dev_id = dev,	\
			.con_id = con,	\
			.clk = ck,	\
		},			\
	}

/* Platform flags for the clkdev-OMAP integration code */
#define CK_242X		(1 << 0)
#define CK_243X		(1 << 1)	/* 243x, 253x */
#define CK_3430ES1	(1 << 2)	/* 34xxES1 only */
#define CK_3430ES2PLUS	(1 << 3)	/* 34xxES2, ES3, non-Sitara 35xx only */
#define CK_AM35XX	(1 << 4)	/* Sitara AM35xx */
#define CK_36XX		(1 << 5)	/* 36xx/37xx-specific clocks */
#define CK_443X		(1 << 6)
#define CK_TI816X	(1 << 7)
#define CK_446X		(1 << 8)
#define CK_AM33XX	(1 << 9)	/* AM33xx specific clocks */


#define CK_34XX		(CK_3430ES1 | CK_3430ES2PLUS)
#define CK_3XXX		(CK_34XX | CK_AM35XX | CK_36XX)

struct clockdomain;
#define to_clk_hw_omap(_hw) container_of(_hw, struct clk_hw_omap, hw)

#define DEFINE_STRUCT_CLK(_name, _parent_array_name, _clkops_name)	\
	static struct clk _name = {				\
		.name = #_name,					\
		.hw = &_name##_hw.hw,				\
		.parent_names = _parent_array_name,		\
		.num_parents = ARRAY_SIZE(_parent_array_name),	\
		.ops = &_clkops_name,				\
	};

#define DEFINE_STRUCT_CLK_FLAGS(_name, _parent_array_name,	\
				_clkops_name, _flags)		\
	static struct clk _name = {				\
		.name = #_name,					\
		.hw = &_name##_hw.hw,				\
		.parent_names = _parent_array_name,		\
		.num_parents = ARRAY_SIZE(_parent_array_name),	\
		.ops = &_clkops_name,				\
		.flags = _flags,				\
	};

#define DEFINE_STRUCT_CLK_HW_OMAP(_name, _clkdm_name)		\
	static struct clk_hw_omap _name##_hw = {		\
		.hw = {						\
			.clk = &_name,				\
		},						\
		.clkdm_name = _clkdm_name,			\
	};

#define DEFINE_CLK_OMAP_MUX(_name, _clkdm_name, _clksel,	\
			    _clksel_reg, _clksel_mask,		\
			    _parent_names, _ops)		\
	static struct clk _name;				\
	static struct clk_hw_omap _name##_hw = {		\
		.hw = {						\
			.clk = &_name,				\
		},						\
		.clksel		= _clksel,			\
		.clksel_reg	= _clksel_reg,			\
		.clksel_mask	= _clksel_mask,			\
		.clkdm_name	= _clkdm_name,			\
	};							\
	DEFINE_STRUCT_CLK(_name, _parent_names, _ops);

#define DEFINE_CLK_OMAP_MUX_GATE(_name, _clkdm_name, _clksel,	\
				 _clksel_reg, _clksel_mask,	\
				 _enable_reg, _enable_bit,	\
				 _hwops, _parent_names, _ops)	\
	static struct clk _name;				\
	static struct clk_hw_omap _name##_hw = {		\
		.hw = {						\
			.clk = &_name,				\
		},						\
		.ops		= _hwops,			\
		.enable_reg	= _enable_reg,			\
		.enable_bit	= _enable_bit,			\
		.clksel		= _clksel,			\
		.clksel_reg	= _clksel_reg,			\
		.clksel_mask	= _clksel_mask,			\
		.clkdm_name	= _clkdm_name,			\
	};							\
	DEFINE_STRUCT_CLK(_name, _parent_names, _ops);

#define DEFINE_CLK_OMAP_HSDIVIDER(_name, _parent_name,		\
				_parent_ptr, _flags,		\
				_clksel_reg, _clksel_mask)	\
	static const struct clksel _name##_div[] = {		\
		{						\
			.parent = _parent_ptr,			\
			.rates = div31_1to31_rates		\
		},						\
		{ .parent = NULL },				\
	};							\
	static struct clk _name;				\
	static const char *_name##_parent_names[] = {		\
		_parent_name,					\
	};							\
	static struct clk_hw_omap _name##_hw = {		\
		.hw = {						\
			.clk = &_name,				\
		},						\
		.clksel		= _name##_div,			\
		.clksel_reg	= _clksel_reg,			\
		.clksel_mask	= _clksel_mask,			\
		.ops		= &clkhwops_omap4_dpllmx,	\
	};							\
	DEFINE_STRUCT_CLK(_name, _name##_parent_names, omap_hsdivider_ops);

/* struct clksel_rate.flags possibilities */
#define RATE_IN_242X		(1 << 0)
#define RATE_IN_243X		(1 << 1)
#define RATE_IN_3430ES1		(1 << 2)	/* 3430ES1 rates only */
#define RATE_IN_3430ES2PLUS	(1 << 3)	/* 3430 ES >= 2 rates only */
#define RATE_IN_36XX		(1 << 4)
#define RATE_IN_4430		(1 << 5)
#define RATE_IN_TI816X		(1 << 6)
#define RATE_IN_4460		(1 << 7)
#define RATE_IN_AM33XX		(1 << 8)
#define RATE_IN_TI814X		(1 << 9)

#define RATE_IN_24XX		(RATE_IN_242X | RATE_IN_243X)
#define RATE_IN_34XX		(RATE_IN_3430ES1 | RATE_IN_3430ES2PLUS)
#define RATE_IN_3XXX		(RATE_IN_34XX | RATE_IN_36XX)
#define RATE_IN_44XX		(RATE_IN_4430 | RATE_IN_4460)

/* RATE_IN_3430ES2PLUS_36XX includes 34xx/35xx with ES >=2, and all 36xx/37xx */
#define RATE_IN_3430ES2PLUS_36XX	(RATE_IN_3430ES2PLUS | RATE_IN_36XX)


/**
 * struct clksel_rate - register bitfield values corresponding to clk divisors
 * @val: register bitfield value (shifted to bit 0)
 * @div: clock divisor corresponding to @val
 * @flags: (see "struct clksel_rate.flags possibilities" above)
 *
 * @val should match the value of a read from struct clk.clksel_reg
 * AND'ed with struct clk.clksel_mask, shifted right to bit 0.
 *
 * @div is the divisor that should be applied to the parent clock's rate
 * to produce the current clock's rate.
 */
struct clksel_rate {
	u32			val;
	u8			div;
	u16			flags;
};

/**
 * struct clksel - available parent clocks, and a pointer to their divisors
 * @parent: struct clk * to a possible parent clock
 * @rates: available divisors for this parent clock
 *
 * A struct clksel is always associated with one or more struct clks
 * and one or more struct clksel_rates.
 */
struct clksel {
	struct clk		 *parent;
	const struct clksel_rate *rates;
};

/**
 * struct dpll_data - DPLL registers and integration data
 * @mult_div1_reg: register containing the DPLL M and N bitfields
 * @mult_mask: mask of the DPLL M bitfield in @mult_div1_reg
 * @div1_mask: mask of the DPLL N bitfield in @mult_div1_reg
 * @clk_bypass: struct clk pointer to the clock's bypass clock input
 * @clk_ref: struct clk pointer to the clock's reference clock input
 * @control_reg: register containing the DPLL mode bitfield
 * @enable_mask: mask of the DPLL mode bitfield in @control_reg
 * @last_rounded_rate: cache of the last rate result of omap2_dpll_round_rate()
 * @last_rounded_m: cache of the last M result of omap2_dpll_round_rate()
 * @last_rounded_m4xen: cache of the last M4X result of
 *			omap4_dpll_regm4xen_round_rate()
 * @last_rounded_lpmode: cache of the last lpmode result of
 *			 omap4_dpll_lpmode_recalc()
 * @max_multiplier: maximum valid non-bypass multiplier value (actual)
 * @last_rounded_n: cache of the last N result of omap2_dpll_round_rate()
 * @min_divider: minimum valid non-bypass divider value (actual)
 * @max_divider: maximum valid non-bypass divider value (actual)
 * @modes: possible values of @enable_mask
 * @autoidle_reg: register containing the DPLL autoidle mode bitfield
 * @idlest_reg: register containing the DPLL idle status bitfield
 * @autoidle_mask: mask of the DPLL autoidle mode bitfield in @autoidle_reg
 * @freqsel_mask: mask of the DPLL jitter correction bitfield in @control_reg
 * @idlest_mask: mask of the DPLL idle status bitfield in @idlest_reg
 * @lpmode_mask: mask of the DPLL low-power mode bitfield in @control_reg
 * @m4xen_mask: mask of the DPLL M4X multiplier bitfield in @control_reg
 * @auto_recal_bit: bitshift of the driftguard enable bit in @control_reg
 * @recal_en_bit: bitshift of the PRM_IRQENABLE_* bit for recalibration IRQs
 * @recal_st_bit: bitshift of the PRM_IRQSTATUS_* bit for recalibration IRQs
 * @flags: DPLL type/features (see below)
 *
 * Possible values for @flags:
 * DPLL_J_TYPE: "J-type DPLL" (only some 36xx, 4xxx DPLLs)
 *
 * @freqsel_mask is only used on the OMAP34xx family and AM35xx.
 *
 * XXX Some DPLLs have multiple bypass inputs, so it's not technically
 * correct to only have one @clk_bypass pointer.
 *
 * XXX The runtime-variable fields (@last_rounded_rate, @last_rounded_m,
 * @last_rounded_n) should be separated from the runtime-fixed fields
 * and placed into a different structure, so that the runtime-fixed data
 * can be placed into read-only space.
 */
struct dpll_data {
	void __iomem		*mult_div1_reg;
	u32			mult_mask;
	u32			div1_mask;
	struct clk		*clk_bypass;
	struct clk		*clk_ref;
	void __iomem		*control_reg;
	u32			enable_mask;
	unsigned long		last_rounded_rate;
	u16			last_rounded_m;
	u8			last_rounded_m4xen;
	u8			last_rounded_lpmode;
	u16			max_multiplier;
	u8			last_rounded_n;
	u8			min_divider;
	u16			max_divider;
	u8			modes;
	void __iomem		*autoidle_reg;
	void __iomem		*idlest_reg;
	u32			autoidle_mask;
	u32			freqsel_mask;
	u32			idlest_mask;
	u32			dco_mask;
	u32			sddiv_mask;
	u32			lpmode_mask;
	u32			m4xen_mask;
	u8			auto_recal_bit;
	u8			recal_en_bit;
	u8			recal_st_bit;
	u8			flags;
};

/*
 * struct clk.flags possibilities
 *
 * XXX document the rest of the clock flags here
 *
 * CLOCK_CLKOUTX2: (OMAP4 only) DPLL CLKOUT and CLKOUTX2 GATE_CTRL
 *     bits share the same register.  This flag allows the
 *     omap4_dpllmx*() code to determine which GATE_CTRL bit field
 *     should be used.  This is a temporary solution - a better approach
 *     would be to associate clock type-specific data with the clock,
 *     similar to the struct dpll_data approach.
 */
#define ENABLE_REG_32BIT	(1 << 0)	/* Use 32-bit access */
#define CLOCK_IDLE_CONTROL	(1 << 1)
#define CLOCK_NO_IDLE_PARENT	(1 << 2)
#define ENABLE_ON_INIT		(1 << 3)	/* Enable upon framework init */
#define INVERT_ENABLE		(1 << 4)	/* 0 enables, 1 disables */
#define CLOCK_CLKOUTX2		(1 << 5)

/**
 * struct clk_hw_omap - OMAP struct clk
 * @node: list_head connecting this clock into the full clock list
 * @enable_reg: register to write to enable the clock (see @enable_bit)
 * @enable_bit: bitshift to write to enable/disable the clock (see @enable_reg)
 * @flags: see "struct clk.flags possibilities" above
 * @clksel_reg: for clksel clks, register va containing src/divisor select
 * @clksel_mask: bitmask in @clksel_reg for the src/divisor selector
 * @clksel: for clksel clks, pointer to struct clksel for this clock
 * @dpll_data: for DPLLs, pointer to struct dpll_data for this clock
 * @clkdm_name: clockdomain name that this clock is contained in
 * @clkdm: pointer to struct clockdomain, resolved from @clkdm_name at runtime
 * @rate_offset: bitshift for rate selection bitfield (OMAP1 only)
 * @src_offset: bitshift for source selection bitfield (OMAP1 only)
 *
 * XXX @rate_offset, @src_offset should probably be removed and OMAP1
 * clock code converted to use clksel.
 *
 */

struct clk_hw_omap_ops;

struct clk_hw_omap {
	struct clk_hw		hw;
	struct list_head	node;
	unsigned long		fixed_rate;
	u8			fixed_div;
	void __iomem		*enable_reg;
	u8			enable_bit;
	u8			flags;
	void __iomem		*clksel_reg;
	u32			clksel_mask;
	const struct clksel	*clksel;
	struct dpll_data	*dpll_data;
	const char		*clkdm_name;
	struct clockdomain	*clkdm;
	const struct clk_hw_omap_ops	*ops;
};

struct clk_hw_omap_ops {
	void			(*find_idlest)(struct clk_hw_omap *oclk,
					void __iomem **idlest_reg,
					u8 *idlest_bit, u8 *idlest_val);
	void			(*find_companion)(struct clk_hw_omap *oclk,
					void __iomem **other_reg,
					u8 *other_bit);
	void			(*allow_idle)(struct clk_hw_omap *oclk);
	void			(*deny_idle)(struct clk_hw_omap *oclk);
};

unsigned long omap_fixed_divisor_recalc(struct clk_hw *hw,
					unsigned long parent_rate);

/* 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

long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate,
			unsigned long *parent_rate);
unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate);
int omap3_noncore_dpll_enable(struct clk_hw *hw);
void omap3_noncore_dpll_disable(struct clk_hw *hw);
int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
				unsigned long parent_rate);
u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk);
void omap3_dpll_allow_idle(struct clk_hw_omap *clk);
void omap3_dpll_deny_idle(struct clk_hw_omap *clk);
unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
				    unsigned long parent_rate);
int omap4_dpllmx_gatectrl_read(struct clk_hw_omap *clk);
void omap4_dpllmx_allow_gatectrl(struct clk_hw_omap *clk);
void omap4_dpllmx_deny_gatectrl(struct clk_hw_omap *clk);
unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw,
				unsigned long parent_rate);
long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw,
				    unsigned long target_rate,
				    unsigned long *parent_rate);

void omap2_init_clk_clkdm(struct clk_hw *clk);
void __init omap2_clk_disable_clkdm_control(void);

/* clkt_clksel.c public functions */
u32 omap2_clksel_round_rate_div(struct clk_hw_omap *clk,
				unsigned long target_rate,
				u32 *new_div);
u8 omap2_clksel_find_parent_index(struct clk_hw *hw);
unsigned long omap2_clksel_recalc(struct clk_hw *hw, unsigned long parent_rate);
long omap2_clksel_round_rate(struct clk_hw *hw, unsigned long target_rate,
				unsigned long *parent_rate);
int omap2_clksel_set_rate(struct clk_hw *hw, unsigned long rate,
				unsigned long parent_rate);
int omap2_clksel_set_parent(struct clk_hw *hw, u8 field_val);

/* clkt_iclk.c public functions */
extern void omap2_clkt_iclk_allow_idle(struct clk_hw_omap *clk);
extern void omap2_clkt_iclk_deny_idle(struct clk_hw_omap *clk);

u8 omap2_init_dpll_parent(struct clk_hw *hw);
unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk);

int omap2_dflt_clk_enable(struct clk_hw *hw);
void omap2_dflt_clk_disable(struct clk_hw *hw);
int omap2_dflt_clk_is_enabled(struct clk_hw *hw);
void omap2_clk_dflt_find_companion(struct clk_hw_omap *clk,
				   void __iomem **other_reg,
				   u8 *other_bit);
void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk,
				void __iomem **idlest_reg,
				u8 *idlest_bit, u8 *idlest_val);
void omap2_init_clk_hw_omap_clocks(struct clk *clk);
int omap2_clk_enable_autoidle_all(void);
int omap2_clk_disable_autoidle_all(void);
void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks);
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 u16 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 const struct clksel_rate gpt_32k_rates[];
extern const struct clksel_rate gpt_sys_rates[];
extern const struct clksel_rate gfx_l3_rates[];
extern const struct clksel_rate dsp_ick_rates[];
extern struct clk dummy_ck;

extern const struct clk_hw_omap_ops clkhwops_omap3_dpll;
extern const struct clk_hw_omap_ops clkhwops_iclk_wait;
extern const struct clk_hw_omap_ops clkhwops_wait;
extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx;
extern const struct clk_hw_omap_ops clkhwops_iclk;
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_ssi_wait;
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_ssi_wait;
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_dss_usbhost_wait;
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_dss_usbhost_wait;
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_hsotgusb_wait;
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_hsotgusb_wait;
extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait;
extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_wait;
extern const struct clk_hw_omap_ops clkhwops_apll54;
extern const struct clk_hw_omap_ops clkhwops_apll96;
extern const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll;
extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;

/* clksel_rate blocks shared between OMAP44xx and AM33xx */
extern const struct clksel_rate div_1_0_rates[];
extern const struct clksel_rate div3_1to4_rates[];
extern const struct clksel_rate div_1_1_rates[];
extern const struct clksel_rate div_1_2_rates[];
extern const struct clksel_rate div_1_3_rates[];
extern const struct clksel_rate div_1_4_rates[];
extern const struct clksel_rate div31_1to31_rates[];

extern int am33xx_clk_init(void);

extern int omap2_clkops_enable_clkdm(struct clk_hw *hw);
extern void omap2_clkops_disable_clkdm(struct clk_hw *hw);

#endif
Commit	Line	Data
543d9378 PW	1	/*
	2	* linux/arch/arm/mach-omap2/clock.h
	3	*
d8a94458	4	* Copyright (C) 2005-2009 Texas Instruments, Inc.
530e544f	5	* Copyright (C) 2004-2011 Nokia Corporation
543d9378	6	*
a16e9703 TL	7	* Contacts:
a16e9703 TL	8	* Richard Woodruff <r-woodruff2@ti.com>
543d9378 PW	9	* Paul Walmsley
	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License version 2 as
	13	* published by the Free Software Foundation.
	14	*/
	15
	16	#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK_H
	17	#define __ARCH_ARM_MACH_OMAP2_CLOCK_H
	18
12706c54	19	#include <linux/kernel.h>
a135eaae PW	20	#include <linux/list.h>
a135eaae PW	21
e10dd62f	22	#include <linux/clkdev.h>
f9ae32a7	23	#include <linux/clk-provider.h>
e10dd62f PW	24
	25	struct omap_clk {
	26	u16 cpu;
	27	struct clk_lookup lk;
	28	};
	29
	30	#define CLK(dev, con, ck, cp) \
	31	{ \
	32	.cpu = cp, \
	33	.lk = { \
	34	.dev_id = dev, \
	35	.con_id = con, \
	36	.clk = ck, \
	37	}, \
	38	}
	39
	40	/* Platform flags for the clkdev-OMAP integration code */
	41	#define CK_242X (1 << 0)
	42	#define CK_243X (1 << 1) /* 243x, 253x */
	43	#define CK_3430ES1 (1 << 2) /* 34xxES1 only */
	44	#define CK_3430ES2PLUS (1 << 3) /* 34xxES2, ES3, non-Sitara 35xx only */
	45	#define CK_AM35XX (1 << 4) /* Sitara AM35xx */
	46	#define CK_36XX (1 << 5) /* 36xx/37xx-specific clocks */
	47	#define CK_443X (1 << 6)
	48	#define CK_TI816X (1 << 7)
	49	#define CK_446X (1 << 8)
	50	#define CK_AM33XX (1 << 9) /* AM33xx specific clocks */
	51
	52
	53	#define CK_34XX (CK_3430ES1 \| CK_3430ES2PLUS)
	54	#define CK_3XXX (CK_34XX \| CK_AM35XX \| CK_36XX)
	55
b5a2366c RN	56	struct clockdomain;
	57	#define to_clk_hw_omap(_hw) container_of(_hw, struct clk_hw_omap, hw)
	58
8c725dcd PW	59	#define DEFINE_STRUCT_CLK(_name, _parent_array_name, _clkops_name) \
	60	static struct clk _name = { \
	61	.name = #_name, \
	62	.hw = &_name##_hw.hw, \
	63	.parent_names = _parent_array_name, \
	64	.num_parents = ARRAY_SIZE(_parent_array_name), \
	65	.ops = &_clkops_name, \
	66	};
	67
601155b0 AM	68	#define DEFINE_STRUCT_CLK_FLAGS(_name, _parent_array_name, \
	69	_clkops_name, _flags) \
	70	static struct clk _name = { \
	71	.name = #_name, \
	72	.hw = &_name##_hw.hw, \
	73	.parent_names = _parent_array_name, \
	74	.num_parents = ARRAY_SIZE(_parent_array_name), \
	75	.ops = &_clkops_name, \
	76	.flags = _flags, \
	77	};
	78
8c725dcd PW	79	#define DEFINE_STRUCT_CLK_HW_OMAP(_name, _clkdm_name) \
	80	static struct clk_hw_omap _name##_hw = { \
	81	.hw = { \
	82	.clk = &_name, \
	83	}, \
	84	.clkdm_name = _clkdm_name, \
	85	};
	86
	87	#define DEFINE_CLK_OMAP_MUX(_name, _clkdm_name, _clksel, \
	88	_clksel_reg, _clksel_mask, \
	89	_parent_names, _ops) \
	90	static struct clk _name; \
	91	static struct clk_hw_omap _name##_hw = { \
	92	.hw = { \
	93	.clk = &_name, \
	94	}, \
	95	.clksel = _clksel, \
	96	.clksel_reg = _clksel_reg, \
	97	.clksel_mask = _clksel_mask, \
	98	.clkdm_name = _clkdm_name, \
	99	}; \
	100	DEFINE_STRUCT_CLK(_name, _parent_names, _ops);
	101
	102	#define DEFINE_CLK_OMAP_MUX_GATE(_name, _clkdm_name, _clksel, \
	103	_clksel_reg, _clksel_mask, \
	104	_enable_reg, _enable_bit, \
	105	_hwops, _parent_names, _ops) \
	106	static struct clk _name; \
	107	static struct clk_hw_omap _name##_hw = { \
	108	.hw = { \
	109	.clk = &_name, \
	110	}, \
	111	.ops = _hwops, \
	112	.enable_reg = _enable_reg, \
	113	.enable_bit = _enable_bit, \
	114	.clksel = _clksel, \
	115	.clksel_reg = _clksel_reg, \
	116	.clksel_mask = _clksel_mask, \
	117	.clkdm_name = _clkdm_name, \
	118	}; \
	119	DEFINE_STRUCT_CLK(_name, _parent_names, _ops);
	120
	121	#define DEFINE_CLK_OMAP_HSDIVIDER(_name, _parent_name, \
	122	_parent_ptr, _flags, \
	123	_clksel_reg, _clksel_mask) \
	124	static const struct clksel _name##_div[] = { \
	125	{ \
	126	.parent = _parent_ptr, \
	127	.rates = div31_1to31_rates \
	128	}, \
	129	{ .parent = NULL }, \
	130	}; \
	131	static struct clk _name; \
	132	static const char *_name##_parent_names[] = { \
	133	_parent_name, \
	134	}; \
	135	static struct clk_hw_omap _name##_hw = { \
	136	.hw = { \
	137	.clk = &_name, \
	138	}, \
	139	.clksel = _name##_div, \
	140	.clksel_reg = _clksel_reg, \
	141	.clksel_mask = _clksel_mask, \
	142	.ops = &clkhwops_omap4_dpllmx, \
143	}; \
144	DEFINE_STRUCT_CLK(_name, _name##_parent_names, omap_hsdivider_ops);
145
a135eaae PW	146	/* struct clksel_rate.flags possibilities */
	147	#define RATE_IN_242X (1 << 0)
	148	#define RATE_IN_243X (1 << 1)
	149	#define RATE_IN_3430ES1 (1 << 2) /* 3430ES1 rates only */
	150	#define RATE_IN_3430ES2PLUS (1 << 3) /* 3430 ES >= 2 rates only */
	151	#define RATE_IN_36XX (1 << 4)
	152	#define RATE_IN_4430 (1 << 5)
	153	#define RATE_IN_TI816X (1 << 6)
	154	#define RATE_IN_4460 (1 << 7)
	155	#define RATE_IN_AM33XX (1 << 8)
	156	#define RATE_IN_TI814X (1 << 9)
	157
	158	#define RATE_IN_24XX (RATE_IN_242X \| RATE_IN_243X)
	159	#define RATE_IN_34XX (RATE_IN_3430ES1 \| RATE_IN_3430ES2PLUS)
	160	#define RATE_IN_3XXX (RATE_IN_34XX \| RATE_IN_36XX)
	161	#define RATE_IN_44XX (RATE_IN_4430 \| RATE_IN_4460)
	162
	163	/* RATE_IN_3430ES2PLUS_36XX includes 34xx/35xx with ES >=2, and all 36xx/37xx */
	164	#define RATE_IN_3430ES2PLUS_36XX (RATE_IN_3430ES2PLUS \| RATE_IN_36XX)
	165
	166
	167	/**
	168	* struct clksel_rate - register bitfield values corresponding to clk divisors
	169	* @val: register bitfield value (shifted to bit 0)
	170	* @div: clock divisor corresponding to @val
	171	* @flags: (see "struct clksel_rate.flags possibilities" above)
	172	*
	173	* @val should match the value of a read from struct clk.clksel_reg
	174	* AND'ed with struct clk.clksel_mask, shifted right to bit 0.
	175	*
	176	* @div is the divisor that should be applied to the parent clock's rate
	177	* to produce the current clock's rate.
	178	*/
	179	struct clksel_rate {
	180	u32 val;
	181	u8 div;
	182	u16 flags;
	183	};
	184
	185	/**
	186	* struct clksel - available parent clocks, and a pointer to their divisors
	187	* @parent: struct clk * to a possible parent clock
	188	* @rates: available divisors for this parent clock
	189	*
	190	* A struct clksel is always associated with one or more struct clks
	191	* and one or more struct clksel_rates.
	192	*/
	193	struct clksel {
	194	struct clk *parent;
	195	const struct clksel_rate *rates;
	196	};
	197
	198	/**
	199	* struct dpll_data - DPLL registers and integration data
	200	* @mult_div1_reg: register containing the DPLL M and N bitfields
	201	* @mult_mask: mask of the DPLL M bitfield in @mult_div1_reg
	202	* @div1_mask: mask of the DPLL N bitfield in @mult_div1_reg
	203	* @clk_bypass: struct clk pointer to the clock's bypass clock input
	204	* @clk_ref: struct clk pointer to the clock's reference clock input
	205	* @control_reg: register containing the DPLL mode bitfield
	206	* @enable_mask: mask of the DPLL mode bitfield in @control_reg
	207	* @last_rounded_rate: cache of the last rate result of omap2_dpll_round_rate()
	208	* @last_rounded_m: cache of the last M result of omap2_dpll_round_rate()
3ff51ed8 JH	209	* @last_rounded_m4xen: cache of the last M4X result of
	210	* omap4_dpll_regm4xen_round_rate()
	211	* @last_rounded_lpmode: cache of the last lpmode result of
	212	* omap4_dpll_lpmode_recalc()
a135eaae PW	213	* @max_multiplier: maximum valid non-bypass multiplier value (actual)
	214	* @last_rounded_n: cache of the last N result of omap2_dpll_round_rate()
	215	* @min_divider: minimum valid non-bypass divider value (actual)
	216	* @max_divider: maximum valid non-bypass divider value (actual)
	217	* @modes: possible values of @enable_mask
	218	* @autoidle_reg: register containing the DPLL autoidle mode bitfield
	219	* @idlest_reg: register containing the DPLL idle status bitfield
	220	* @autoidle_mask: mask of the DPLL autoidle mode bitfield in @autoidle_reg
	221	* @freqsel_mask: mask of the DPLL jitter correction bitfield in @control_reg
	222	* @idlest_mask: mask of the DPLL idle status bitfield in @idlest_reg
3ff51ed8 JH	223	* @lpmode_mask: mask of the DPLL low-power mode bitfield in @control_reg
3ff51ed8 JH	224	* @m4xen_mask: mask of the DPLL M4X multiplier bitfield in @control_reg
a135eaae PW	225	* @auto_recal_bit: bitshift of the driftguard enable bit in @control_reg
	226	* @recal_en_bit: bitshift of the PRM_IRQENABLE_* bit for recalibration IRQs
	227	* @recal_st_bit: bitshift of the PRM_IRQSTATUS_* bit for recalibration IRQs
	228	* @flags: DPLL type/features (see below)
	229	*
	230	* Possible values for @flags:
	231	* DPLL_J_TYPE: "J-type DPLL" (only some 36xx, 4xxx DPLLs)
	232	*
	233	* @freqsel_mask is only used on the OMAP34xx family and AM35xx.
	234	*
	235	* XXX Some DPLLs have multiple bypass inputs, so it's not technically
	236	* correct to only have one @clk_bypass pointer.
	237	*
	238	* XXX The runtime-variable fields (@last_rounded_rate, @last_rounded_m,
	239	* @last_rounded_n) should be separated from the runtime-fixed fields
	240	* and placed into a different structure, so that the runtime-fixed data
	241	* can be placed into read-only space.
	242	*/
	243	struct dpll_data {
	244	void __iomem *mult_div1_reg;
	245	u32 mult_mask;
	246	u32 div1_mask;
	247	struct clk *clk_bypass;
	248	struct clk *clk_ref;
	249	void __iomem *control_reg;
	250	u32 enable_mask;
	251	unsigned long last_rounded_rate;
	252	u16 last_rounded_m;
3ff51ed8 JH	253	u8 last_rounded_m4xen;
3ff51ed8 JH	254	u8 last_rounded_lpmode;
a135eaae PW	255	u16 max_multiplier;
	256	u8 last_rounded_n;
	257	u8 min_divider;
	258	u16 max_divider;
	259	u8 modes;
	260	void __iomem *autoidle_reg;
	261	void __iomem *idlest_reg;
	262	u32 autoidle_mask;
	263	u32 freqsel_mask;
	264	u32 idlest_mask;
	265	u32 dco_mask;
	266	u32 sddiv_mask;
3ff51ed8 JH	267	u32 lpmode_mask;
3ff51ed8 JH	268	u32 m4xen_mask;
a135eaae PW	269	u8 auto_recal_bit;
	270	u8 recal_en_bit;
	271	u8 recal_st_bit;
	272	u8 flags;
	273	};
	274
	275	/*
	276	* struct clk.flags possibilities
	277	*
	278	* XXX document the rest of the clock flags here
	279	*
	280	* CLOCK_CLKOUTX2: (OMAP4 only) DPLL CLKOUT and CLKOUTX2 GATE_CTRL
	281	* bits share the same register. This flag allows the
	282	* omap4_dpllmx*() code to determine which GATE_CTRL bit field
	283	* should be used. This is a temporary solution - a better approach
	284	* would be to associate clock type-specific data with the clock,
	285	* similar to the struct dpll_data approach.
	286	*/
	287	#define ENABLE_REG_32BIT (1 << 0) /* Use 32-bit access */
	288	#define CLOCK_IDLE_CONTROL (1 << 1)
	289	#define CLOCK_NO_IDLE_PARENT (1 << 2)
	290	#define ENABLE_ON_INIT (1 << 3) /* Enable upon framework init */
	291	#define INVERT_ENABLE (1 << 4) /* 0 enables, 1 disables */
	292	#define CLOCK_CLKOUTX2 (1 << 5)
	293
b5a2366c RN	294	/**
	295	* struct clk_hw_omap - OMAP struct clk
	296	* @node: list_head connecting this clock into the full clock list
	297	* @enable_reg: register to write to enable the clock (see @enable_bit)
	298	* @enable_bit: bitshift to write to enable/disable the clock (see @enable_reg)
	299	* @flags: see "struct clk.flags possibilities" above
	300	* @clksel_reg: for clksel clks, register va containing src/divisor select
	301	* @clksel_mask: bitmask in @clksel_reg for the src/divisor selector
	302	* @clksel: for clksel clks, pointer to struct clksel for this clock
	303	* @dpll_data: for DPLLs, pointer to struct dpll_data for this clock
	304	* @clkdm_name: clockdomain name that this clock is contained in
	305	* @clkdm: pointer to struct clockdomain, resolved from @clkdm_name at runtime
	306	* @rate_offset: bitshift for rate selection bitfield (OMAP1 only)
	307	* @src_offset: bitshift for source selection bitfield (OMAP1 only)
	308	*
	309	* XXX @rate_offset, @src_offset should probably be removed and OMAP1
	310	* clock code converted to use clksel.
	311	*
	312	*/
	313
	314	struct clk_hw_omap_ops;
	315
	316	struct clk_hw_omap {
	317	struct clk_hw hw;
	318	struct list_head node;
	319	unsigned long fixed_rate;
	320	u8 fixed_div;
	321	void __iomem *enable_reg;
	322	u8 enable_bit;
	323	u8 flags;
	324	void __iomem *clksel_reg;
	325	u32 clksel_mask;
	326	const struct clksel *clksel;
	327	struct dpll_data *dpll_data;
	328	const char *clkdm_name;
	329	struct clockdomain *clkdm;
	330	const struct clk_hw_omap_ops *ops;
	331	};
	332
	333	struct clk_hw_omap_ops {
	334	void (find_idlest)(struct clk_hw_omap oclk,
	335	void __iomem **idlest_reg,
	336	u8 idlest_bit, u8 idlest_val);
	337	void (find_companion)(struct clk_hw_omap oclk,
	338	void __iomem **other_reg,
	339	u8 *other_bit);
	340	void (allow_idle)(struct clk_hw_omap oclk);
	341	void (deny_idle)(struct clk_hw_omap oclk);
	342	};
	343
	344	unsigned long omap_fixed_divisor_recalc(struct clk_hw *hw,
	345	unsigned long parent_rate);
543d9378	346
c0bf3132 RK	347	/* CM_CLKSEL2_PLL.CORE_CLK_SRC bits (2XXX) */
	348	#define CORE_CLK_SRC_32K 0x0
	349	#define CORE_CLK_SRC_DPLL 0x1
	350	#define CORE_CLK_SRC_DPLL_X2 0x2
	351
	352	/* OMAP2xxx CM_CLKEN_PLL.EN_DPLL bits - for omap2_get_dpll_rate() */
	353	#define OMAP2XXX_EN_DPLL_LPBYPASS 0x1
	354	#define OMAP2XXX_EN_DPLL_FRBYPASS 0x2
	355	#define OMAP2XXX_EN_DPLL_LOCKED 0x3
	356
	357	/* OMAP3xxx CM_CLKEN_PLL.EN__DPLL bits - for omap2_get_dpll_rate() */
	358	#define OMAP3XXX_EN_DPLL_LPBYPASS 0x5
	359	#define OMAP3XXX_EN_DPLL_FRBYPASS 0x6
	360	#define OMAP3XXX_EN_DPLL_LOCKED 0x7
	361
16975a79 RN	362	/* OMAP4xxx CM_CLKMODE_DPLL.EN__DPLL bits - for omap2_get_dpll_rate() */
	363	#define OMAP4XXX_EN_DPLL_MNBYPASS 0x4
	364	#define OMAP4XXX_EN_DPLL_LPBYPASS 0x5
	365	#define OMAP4XXX_EN_DPLL_FRBYPASS 0x6
	366	#define OMAP4XXX_EN_DPLL_LOCKED 0x7
	367
a1391d27 RN	368	/* CM_CLKEN_PLL.EN bit values - not all are available for every DPLL */
	369	#define DPLL_LOW_POWER_STOP 0x1
	370	#define DPLL_LOW_POWER_BYPASS 0x5
	371	#define DPLL_LOCKED 0x7
	372
358965d7 RW	373	/* DPLL Type and DCO Selection Flags */
358965d7 RW	374	#define DPLL_J_TYPE 0x1
358965d7	375
32cc0021 MT	376	long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate,
	377	unsigned long *parent_rate);
	378	unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate);
	379	int omap3_noncore_dpll_enable(struct clk_hw *hw);
	380	void omap3_noncore_dpll_disable(struct clk_hw *hw);
	381	int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
	382	unsigned long parent_rate);
	383	u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk);
	384	void omap3_dpll_allow_idle(struct clk_hw_omap *clk);
	385	void omap3_dpll_deny_idle(struct clk_hw_omap *clk);
	386	unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
	387	unsigned long parent_rate);
	388	int omap4_dpllmx_gatectrl_read(struct clk_hw_omap *clk);
	389	void omap4_dpllmx_allow_gatectrl(struct clk_hw_omap *clk);
	390	void omap4_dpllmx_deny_gatectrl(struct clk_hw_omap *clk);
	391	unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw,
	392	unsigned long parent_rate);
	393	long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw,
	394	unsigned long target_rate,
	395	unsigned long *parent_rate);
543d9378	396
32cc0021	397	void omap2_init_clk_clkdm(struct clk_hw *clk);
12706c54	398	void __init omap2_clk_disable_clkdm_control(void);
435699db PW	399
435699db PW	400	/* clkt_clksel.c public functions */
32cc0021 MT	401	u32 omap2_clksel_round_rate_div(struct clk_hw_omap *clk,
	402	unsigned long target_rate,
	403	u32 *new_div);
	404	u8 omap2_clksel_find_parent_index(struct clk_hw *hw);
	405	unsigned long omap2_clksel_recalc(struct clk_hw *hw, unsigned long parent_rate);
	406	long omap2_clksel_round_rate(struct clk_hw *hw, unsigned long target_rate,
	407	unsigned long *parent_rate);
	408	int omap2_clksel_set_rate(struct clk_hw *hw, unsigned long rate,
	409	unsigned long parent_rate);
	410	int omap2_clksel_set_parent(struct clk_hw *hw, u8 field_val);
435699db	411
530e544f	412	/* clkt_iclk.c public functions */
b4777a21 RN	413	extern void omap2_clkt_iclk_allow_idle(struct clk_hw_omap *clk);
b4777a21 RN	414	extern void omap2_clkt_iclk_deny_idle(struct clk_hw_omap *clk);
530e544f	415
32cc0021 MT	416	u8 omap2_init_dpll_parent(struct clk_hw *hw);
32cc0021 MT	417	unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk);
435699db	418
32cc0021 MT	419	int omap2_dflt_clk_enable(struct clk_hw *hw);
	420	void omap2_dflt_clk_disable(struct clk_hw *hw);
	421	int omap2_dflt_clk_is_enabled(struct clk_hw *hw);
	422	void omap2_clk_dflt_find_companion(struct clk_hw_omap *clk,
	423	void __iomem **other_reg,
	424	u8 *other_bit);
	425	void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk,
	426	void __iomem **idlest_reg,
	427	u8 idlest_bit, u8 idlest_val);
23fb8ba3 RN	428	void omap2_init_clk_hw_omap_clocks(struct clk *clk);
	429	int omap2_clk_enable_autoidle_all(void);
	430	int omap2_clk_disable_autoidle_all(void);
8577413c	431	void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks);
4d30e82c PW	432	int omap2_clk_switch_mpurate_at_boot(const char *mpurate_ck_name);
	433	void omap2_clk_print_new_rates(const char *hfclkin_ck_name,
	434	const char *core_ck_name,
	435	const char *mpu_ck_name);
543d9378	436
99541195	437	extern u16 cpu_mask;
d8a94458	438
b36ee724	439	extern const struct clkops clkops_omap2_dflt_wait;
7c43d547	440	extern const struct clkops clkops_dummy;
bc51da4e	441	extern const struct clkops clkops_omap2_dflt;
b36ee724	442
82e9bd58 PW	443	extern struct clk_functions omap2_clk_functions;
82e9bd58 PW	444
d8a94458 PW	445	extern const struct clksel_rate gpt_32k_rates[];
	446	extern const struct clksel_rate gpt_sys_rates[];
	447	extern const struct clksel_rate gfx_l3_rates[];
22411396	448	extern const struct clksel_rate dsp_ick_rates[];
cb26867e	449	extern struct clk dummy_ck;
543d9378	450
32cc0021 MT	451	extern const struct clk_hw_omap_ops clkhwops_omap3_dpll;
	452	extern const struct clk_hw_omap_ops clkhwops_iclk_wait;
	453	extern const struct clk_hw_omap_ops clkhwops_wait;
	454	extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx;
b4777a21 RN	455	extern const struct clk_hw_omap_ops clkhwops_iclk;
	456	extern const struct clk_hw_omap_ops clkhwops_omap3430es2_ssi_wait;
	457	extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_ssi_wait;
	458	extern const struct clk_hw_omap_ops clkhwops_omap3430es2_dss_usbhost_wait;
	459	extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_dss_usbhost_wait;
	460	extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_hsotgusb_wait;
	461	extern const struct clk_hw_omap_ops clkhwops_omap3430es2_hsotgusb_wait;
	462	extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait;
	463	extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_wait;
	464	extern const struct clk_hw_omap_ops clkhwops_apll54;
	465	extern const struct clk_hw_omap_ops clkhwops_apll96;
	466	extern const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll;
	467	extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;
657ebfad	468
571efa0d PW	469	/* clksel_rate blocks shared between OMAP44xx and AM33xx */
571efa0d PW	470	extern const struct clksel_rate div_1_0_rates[];
cb26867e	471	extern const struct clksel_rate div3_1to4_rates[];
571efa0d PW	472	extern const struct clksel_rate div_1_1_rates[];
	473	extern const struct clksel_rate div_1_2_rates[];
	474	extern const struct clksel_rate div_1_3_rates[];
	475	extern const struct clksel_rate div_1_4_rates[];
	476	extern const struct clksel_rate div31_1to31_rates[];
	477
e30384ab VH	478	extern int am33xx_clk_init(void);
e30384ab VH	479
32cc0021 MT	480	extern int omap2_clkops_enable_clkdm(struct clk_hw *hw);
32cc0021 MT	481	extern void omap2_clkops_disable_clkdm(struct clk_hw *hw);
32cc0021	482
543d9378	483	#endif