/*
 * OMAP2430 clock data
 *
 * Copyright (C) 2005-2009, 2012 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.
 */

#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/clk-private.h>
#include <linux/list.h>

#include "soc.h"
#include "iomap.h"
#include "clock.h"
#include "clock2xxx.h"
#include "opp2xxx.h"
#include "cm2xxx.h"
#include "prm2xxx.h"
#include "prm-regbits-24xx.h"
#include "cm-regbits-24xx.h"
#include "sdrc.h"
#include "control.h"

#define OMAP_CM_REGADDR			OMAP2430_CM_REGADDR

/*
 * 2430 clock tree.
 *
 * NOTE:In many cases here we are assigning a 'default' parent. In
 *	many cases the parent is selectable. The set parent calls will
 *	also switch sources.
 *
 *	Several sources are given initial rates which may be wrong, this will
 *	be fixed up in the init func.
 *
 *	Things are broadly separated below by clock domains. It is
 *	noteworthy that most peripherals have dependencies on multiple clock
 *	domains. Many get their interface clocks from the L4 domain, but get
 *	functional clocks from fixed sources or other core domain derived
 *	clocks.
 */

DEFINE_CLK_FIXED_RATE(alt_ck, CLK_IS_ROOT, 54000000, 0x0);

DEFINE_CLK_FIXED_RATE(func_32k_ck, CLK_IS_ROOT, 32768, 0x0);

DEFINE_CLK_FIXED_RATE(mcbsp_clks, CLK_IS_ROOT, 0x0, 0x0);

static struct clk osc_ck;

static const struct clk_ops osc_ck_ops = {
	.enable		= &omap2_enable_osc_ck,
	.disable	= omap2_disable_osc_ck,
	.recalc_rate	= &omap2_osc_clk_recalc,
};

static struct clk_hw_omap osc_ck_hw = {
	.hw = {
		.clk = &osc_ck,
	},
};

static struct clk osc_ck = {
	.name	= "osc_ck",
	.ops	= &osc_ck_ops,
	.hw	= &osc_ck_hw.hw,
	.flags	= CLK_IS_ROOT,
};

DEFINE_CLK_FIXED_RATE(secure_32k_ck, CLK_IS_ROOT, 32768, 0x0);

static struct clk sys_ck;

static const char *sys_ck_parent_names[] = {
	"osc_ck",
};

static const struct clk_ops sys_ck_ops = {
	.init		= &omap2_init_clk_clkdm,
	.recalc_rate	= &omap2xxx_sys_clk_recalc,
};

DEFINE_STRUCT_CLK_HW_OMAP(sys_ck, "wkup_clkdm");
DEFINE_STRUCT_CLK(sys_ck, sys_ck_parent_names, sys_ck_ops);

static struct dpll_data dpll_dd = {
	.mult_div1_reg	= OMAP_CM_REGADDR(PLL_MOD, CM_CLKSEL1),
	.mult_mask	= OMAP24XX_DPLL_MULT_MASK,
	.div1_mask	= OMAP24XX_DPLL_DIV_MASK,
	.clk_bypass	= &sys_ck,
	.clk_ref	= &sys_ck,
	.control_reg	= OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN),
	.enable_mask	= OMAP24XX_EN_DPLL_MASK,
	.max_multiplier	= 1023,
	.min_divider	= 1,
	.max_divider	= 16,
};

static struct clk dpll_ck;

static const char *dpll_ck_parent_names[] = {
	"sys_ck",
};

static const struct clk_ops dpll_ck_ops = {
	.init		= &omap2_init_clk_clkdm,
	.get_parent	= &omap2_init_dpll_parent,
	.recalc_rate	= &omap2_dpllcore_recalc,
	.round_rate	= &omap2_dpll_round_rate,
	.set_rate	= &omap2_reprogram_dpllcore,
};

static struct clk_hw_omap dpll_ck_hw = {
	.hw = {
		.clk = &dpll_ck,
	},
	.ops		= &clkhwops_omap2xxx_dpll,
	.dpll_data	= &dpll_dd,
	.clkdm_name	= "wkup_clkdm",
};

DEFINE_STRUCT_CLK(dpll_ck, dpll_ck_parent_names, dpll_ck_ops);

static struct clk core_ck;

static const char *core_ck_parent_names[] = {
	"dpll_ck",
};

static const struct clk_ops core_ck_ops = {
	.init		= &omap2_init_clk_clkdm,
};

DEFINE_STRUCT_CLK_HW_OMAP(core_ck, "wkup_clkdm");
DEFINE_STRUCT_CLK(core_ck, core_ck_parent_names, core_ck_ops);