/*
 * OMAP3 clock data
 *
 * Copyright (C) 2007-2012 Texas Instruments, Inc.
 * Copyright (C) 2007-2011 Nokia Corporation
 *
 * Written by Paul Walmsley
 * Updated to COMMON clk data format by Rajendra Nayak <rnayak@ti.com>
 * With many device clock fixes by Kevin Hilman and Jouni Högander
 * DPLL bypass clock support added by Roman Tereshonkov
 *
 */

/*
 * Virtual clocks are introduced as convenient tools.
 * They are sources for other clocks and not supposed
 * to be requested from drivers directly.
 */

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

#include "soc.h"
#include "iomap.h"
#include "clock.h"
#include "clock3xxx.h"
#include "clock34xx.h"
#include "clock36xx.h"
#include "clock3517.h"
#include "cm3xxx.h"
#include "cm-regbits-34xx.h"
#include "prm3xxx.h"
#include "prm-regbits-34xx.h"
#include "control.h"

/*
 * clocks
 */

#define OMAP_CM_REGADDR		OMAP34XX_CM_REGADDR

/* Maximum DPLL multiplier, divider values for OMAP3 */
#define OMAP3_MAX_DPLL_MULT		2047
#define OMAP3630_MAX_JTYPE_DPLL_MULT	4095
#define OMAP3_MAX_DPLL_DIV		128

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

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

DEFINE_CLK_FIXED_RATE(omap_32k_fck, CLK_IS_ROOT, 32768, 0x0);

DEFINE_CLK_FIXED_RATE(pclk_ck, CLK_IS_ROOT, 27000000, 0x0);

DEFINE_CLK_FIXED_RATE(rmii_ck, CLK_IS_ROOT, 50000000, 0x0);

DEFINE_CLK_FIXED_RATE(secure_32k_fck, CLK_IS_ROOT, 32768, 0x0);

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

DEFINE_CLK_FIXED_RATE(virt_12m_ck, CLK_IS_ROOT, 12000000, 0x0);

DEFINE_CLK_FIXED_RATE(virt_13m_ck, CLK_IS_ROOT, 13000000, 0x0);

DEFINE_CLK_FIXED_RATE(virt_16_8m_ck, CLK_IS_ROOT, 16800000, 0x0);

DEFINE_CLK_FIXED_RATE(virt_19200000_ck, CLK_IS_ROOT, 19200000, 0x0);

DEFINE_CLK_FIXED_RATE(virt_26000000_ck, CLK_IS_ROOT, 26000000, 0x0);

DEFINE_CLK_FIXED_RATE(virt_38_4m_ck, CLK_IS_ROOT, 38400000, 0x0);

static const char *osc_sys_ck_parent_names[] = {
	"virt_12m_ck", "virt_13m_ck", "virt_19200000_ck", "virt_26000000_ck",
	"virt_38_4m_ck", "virt_16_8m_ck",
};

DEFINE_CLK_MUX(osc_sys_ck, osc_sys_ck_parent_names, NULL, 0x0,
	       OMAP3430_PRM_CLKSEL, OMAP3430_SYS_CLKIN_SEL_SHIFT,
	       OMAP3430_SYS_CLKIN_SEL_WIDTH, 0x0, NULL);

DEFINE_CLK_DIVIDER(sys_ck, "osc_sys_ck", &osc_sys_ck, 0x0,
		   OMAP3430_PRM_CLKSRC_CTRL, OMAP_SYSCLKDIV_SHIFT,
		   OMAP_SYSCLKDIV_WIDTH, CLK_DIVIDER_ONE_BASED, NULL);

static struct dpll_data dpll3_dd = {
	.mult_div1_reg	= OMAP_CM_REGADDR(PLL_MOD, CM_CLKSEL1),
	.mult_mask	= OMAP3430_CORE_DPLL_MULT_MASK,
	.div1_mask	= OMAP3430_CORE_DPLL_DIV_MASK,
	.clk_bypass	= &sys_ck,
	.clk_ref	= &sys_ck,
	.freqsel_mask	= OMAP3430_CORE_DPLL_FREQSEL_MASK,
	.control_reg	= OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN),
	.enable_mask	= OMAP3430_EN_CORE_DPLL_MASK,
	.auto_recal_bit	= OMAP3430_EN_CORE_DPLL_DRIFTGUARD_SHIFT,
	.recal_en_bit	= OMAP3430_CORE_DPLL_RECAL_EN_SHIFT,
	.recal_st_bit	= OMAP3430_CORE_DPLL_ST_SHIFT,
	.autoidle_reg	= OMAP_CM_REGADDR(PLL_MOD, CM_AUTOIDLE),
	.autoidle_mask	= OMAP3430_AUTO_CORE_DPLL_MASK,
	.idlest_reg	= OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST),
	.idlest_mask	= OMAP3430_ST_CORE_CLK_MASK,
	.max_multiplier	= OMAP3_MAX_DPLL_MULT,
	.min_divider	= 1,
	.max_divider	= OMAP3_MAX_DPLL_DIV,
};

static struct clk dpll3_ck;

static const char *dpll3_ck_parent_names[] = {
	"sys_ck",
};

static const struct clk_ops dpll3_ck_ops = {
	.init		= &omap2_init_clk_clkdm,
	.get_parent	= &omap2_init_dpll_parent,
	.recalc_rate	= &omap3_dpll_recalc,
	.round_rate	= &omap2_dpll_round_rate,
};

static struct clk_hw_omap dpll3_ck_hw = {
	.hw = {
		.clk = &dpll3_ck,
	},
	.ops		= &clkhwops_omap3_dpll,
	.dpll_data	= &dpll3_dd,
	.clkdm_name	= "dpll3_clkdm",
};

DEFINE_STRUCT_CLK(dpll3_ck, dpll3_ck_parent_names, dpll3_ck_ops);

DEFINE_CLK_DIVIDER(dpll3_m2_ck, "dpll3_ck", &dpll3_ck, 0x0,
		   OMAP_CM_REGADDR(PLL_MOD, CM_CLKSEL1),
		   OMAP3430_CORE_DPLL_CLKOUT_DIV_SHIFT,
		   OMAP3430_CORE_DPLL_CLKOUT_DIV_WIDTH,
		   CLK_DIVIDER_ONE_BASED, NULL);

static struct clk core_ck;

static const char *core_ck_parent_names[] = {
	"dpll3_m2_ck",
};

static const struct clk_ops core_ck_ops = {};

DEFINE_STRUCT_CLK_HW_OMAP(core_ck, NULL);
DEFINE_STRUCT_CLK(core_ck, core_ck_parent_names, core_ck_ops);

DEFINE_CLK_DIVIDER(l3_ick, "core_ck", &core_ck, 0x0,
		   OMAP_CM_REGADDR(CORE_MOD, CM_CLKSEL),
		   OMAP3430_CLKSEL_L3_SHIFT, OMAP3430_CLKSEL_L3_WIDTH,
		   CLK_DIVIDER_ONE_BASED, NULL);

DEFINE_CLK_DIVIDER(l4_ick, "l3_ick", &l3_ick, 0x0,
		   OMAP_CM_REGADDR(CORE_MOD, CM_CLKSEL),
		   OMAP3430_CLKSEL_L4_SHIFT, OMAP3430_CLKSEL_L4_WIDTH,
		   CLK_DIVIDER_ONE_BASED, NULL);

static struct clk security_l4_ick2;

static const char *security_l4_ick2_parent_names[] = {
	"l4_ick",
};

DEFINE_STRUCT_CLK_HW_OMAP(security_l4_ick2, NULL);
DEFINE_STRUCT_CLK(security_l4_ick2, security_l4_ick2_parent_names, core_ck_ops);

static struct clk aes1_ick;

static const char *aes1_ick_parent_names[] = {
	"security_l4_ick2",
};

static const struct clk_ops aes1_ick_ops = {
	.enable		= &omap2_dflt_clk_enable,
	.disable	= &omap2_dflt_clk_disable,
	.is_enabled	= &omap2_dflt_clk_is_enabled,
};

static struct clk_hw_omap aes1_ick_hw = {
	.hw = {
		.clk = &aes1_ick,
	},
	.ops		= &clkhwops_iclk_wait,
	.enable_reg	= OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN2),
	.enable_bit	= OMAP3430_EN_AES1_SHIFT,
};

DEFINE_STRUCT_CLK(aes1_ick, aes1_ick_parent_names, aes1_ick_ops);

static struct clk core_l4_ick;

static const struct clk_ops core_l4_ick_ops = {
	.init		= &omap2_init_clk_clkdm,
};

DEFINE_STRUCT_CLK_HW_OMAP(core_l4_ick, "core_l4_clkdm");
DEFINE_STRUCT_CLK(core_l4_ick, security_l4_ick2_parent_names, core_l4_ick_ops);

static struct clk aes2_ick;

static const char *aes2_ick_parent_names[] = {
	"core_l4_ick",
};

static const struct clk_ops aes2_ick_ops = {
	.init		= &omap2_init_clk_clkdm,
	.enable		= &omap2_dflt_clk_enable,
	.disable	= &omap2_dflt_clk_disable,
	.is_enabled	= &omap2_dflt_clk_is_enabled,
};

static struct clk_hw_omap aes2_ick_hw = {
	.hw = {
		.clk = &aes2_ick,
	},
	.ops		= &clkhwops_iclk_wait,
	.enable_reg	= OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1),
	.enable_bit	= OMAP3430_EN_AES2_SHIFT,
	.clkdm_name	= "core_l4_clkdm",
};

DEFINE_STRUCT_CLK(aes2_ick, aes2_ick_parent_names, aes2_ick_ops);

static struct clk dpll1_fck;

static struct dpll_data dpll1_dd = {
	.mult_div1_reg	= OMAP_CM_REGADDR(MPU_MOD, OMAP3430_CM_CLKSEL1_PLL),
	.mult_mask	= OMAP3430_MPU_DPLL_MULT_MASK,
	.div1_mask	= OMAP3430_MPU_DPLL_DIV_MASK,
	.clk_bypass	= &dpll1_fck,
	.clk_ref	= &sys_ck,
	.freqsel_mask	= OMAP3430_MPU_DPLL_FREQSEL_MASK,
	.control_reg	= OMAP_CM_REGADDR(MPU_MOD, OMAP3430_CM_CLKEN_PLL),
	.enable_mask	= OMAP3430_EN_MPU_DPLL_MASK,
	.modes		= (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
	.auto_recal_bit	= OMAP3430_EN_MPU_DPLL_DRIFTGUARD_SHIFT,
	.recal_en_bit	= OMAP3430_MPU_DPLL_RECAL_EN_SHIFT,
	.recal_st_bit	= OMAP3430_MPU_DPLL_ST_SHIFT,
	.autoidle_reg	= OMAP_CM_REGADDR(MPU_MOD, OMAP3430_CM_AUTOIDLE_PLL),
	.autoidle_mask	= OMAP3430_AUTO_MPU_DPLL_MASK,
	.idlest_reg	= OMAP_CM_REGADDR(MPU_MOD, OMAP3430_CM_IDLEST_PLL),
	.idlest_mask	= OMAP3430_ST_MPU_CLK_MASK,
	.max_multiplier	= OMAP3_MAX_DPLL_MULT,
	.min_divider	= 1,
	.max_divider	= OMAP3_MAX_DPLL_DIV,
};

static struct clk dpll1_ck;

static const struct clk_ops dpll1_ck_ops = {
	.init		= &omap2_init_clk_clkdm,
	.enable		= &omap3_noncore_dpll_enable,
	.disable	= &omap3_noncore_dpll_disable,
	.get_parent	= &omap2_init_dpll_parent,
	.recalc_rate	= &omap3_dpll_recalc,
	.set_rate	= &omap3_noncore_dpll_set_rate,
	.round_rate	= &omap2_dpll_round_rate,
};

static struct clk_hw_omap dpll1_ck_hw = {
	.hw = {
		.clk = &dpll1_ck,
	},
	.ops		= &clkhwops_omap3_dpll,
	.dpll_data	= &dpll1_dd,
	.clkdm_name	= "dpll1_clkdm",
};

DEFINE_STRUCT_CLK(dpll1_ck, dpll3_ck_parent_names, dpll1_ck_ops);

DEFINE_CLK_FIXED_FACTOR(dpll1_x2_ck, "dpll1_ck", &dpll1_ck, 0x0, 2, 1);

DEFINE_CLK_DIVIDER(dpll1_x2m2_ck, "dpll1_x2_ck", &dpll1_x2_ck, 0x0,
		   OMAP_CM_REGADDR(MPU_MOD, OMAP3430_CM_CLKSEL2_PLL),
		   OMAP3430_MPU_DPLL_CLKOUT_DIV_SHIFT,
		   OMAP3430_MPU_DPLL_CLKOUT_DIV_WIDTH,
		   CLK_DIVIDER_ONE_BASED, NULL);