arch/arm/include/asm/arch-omap4/clocks.h

/*
 * (C) Copyright 2010
 * Texas Instruments, <www.ti.com>
 *
 * Aneesh V <aneesh@ti.com>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */
#ifndef _CLOCKS_OMAP4_H_
#define _CLOCKS_OMAP4_H_
#include <common.h>
#include <asm/omap_common.h>

/*
 * Assuming a maximum of 1.5 GHz ARM speed and a minimum of 2 cycles per
 * loop, allow for a minimum of 2 ms wait (in reality the wait will be
 * much more than that)
 */
#define LDELAY		1000000

#define CM_CLKMODE_DPLL_CORE		0x4A004120
#define CM_CLKMODE_DPLL_PER		0x4A008140
#define CM_CLKMODE_DPLL_MPU		0x4A004160
#define CM_CLKSEL_CORE			0x4A004100

/* DPLL register offsets */
#define CM_CLKMODE_DPLL		0
#define CM_IDLEST_DPLL		0x4
#define CM_AUTOIDLE_DPLL	0x8
#define CM_CLKSEL_DPLL		0xC
#define CM_DIV_M2_DPLL		0x10
#define CM_DIV_M3_DPLL		0x14
#define CM_DIV_M4_DPLL		0x18
#define CM_DIV_M5_DPLL		0x1C
#define CM_DIV_M6_DPLL		0x20
#define CM_DIV_M7_DPLL		0x24

#define DPLL_CLKOUT_DIV_MASK	0x1F /* post-divider mask */

/* CM_DLL_CTRL */
#define CM_DLL_CTRL_OVERRIDE_SHIFT	0
#define CM_DLL_CTRL_OVERRIDE_MASK	(1 << 0)
#define CM_DLL_CTRL_NO_OVERRIDE		0

/* CM_CLKMODE_DPLL */
#define CM_CLKMODE_DPLL_REGM4XEN_SHIFT		11
#define CM_CLKMODE_DPLL_REGM4XEN_MASK		(1 << 11)
#define CM_CLKMODE_DPLL_LPMODE_EN_SHIFT		10
#define CM_CLKMODE_DPLL_LPMODE_EN_MASK		(1 << 10)
#define CM_CLKMODE_DPLL_RELOCK_RAMP_EN_SHIFT	9
#define CM_CLKMODE_DPLL_RELOCK_RAMP_EN_MASK	(1 << 9)
#define CM_CLKMODE_DPLL_DRIFTGUARD_EN_SHIFT	8
#define CM_CLKMODE_DPLL_DRIFTGUARD_EN_MASK	(1 << 8)
#define CM_CLKMODE_DPLL_RAMP_RATE_SHIFT		5
#define CM_CLKMODE_DPLL_RAMP_RATE_MASK		(0x7 << 5)
#define CM_CLKMODE_DPLL_EN_SHIFT		0
#define CM_CLKMODE_DPLL_EN_MASK			(0x7 << 0)

#define CM_CLKMODE_DPLL_DPLL_EN_SHIFT		0
#define CM_CLKMODE_DPLL_DPLL_EN_MASK		7

#define DPLL_EN_STOP			1
#define DPLL_EN_MN_BYPASS		4
#define DPLL_EN_LOW_POWER_BYPASS	5
#define DPLL_EN_FAST_RELOCK_BYPASS	6
#define DPLL_EN_LOCK			7

/* CM_IDLEST_DPLL fields */
#define ST_DPLL_CLK_MASK		1

/* CM_CLKSEL_DPLL */
#define CM_CLKSEL_DPLL_DPLL_SD_DIV_SHIFT	24
#define CM_CLKSEL_DPLL_DPLL_SD_DIV_MASK		(0xFF << 24)
#define CM_CLKSEL_DPLL_M_SHIFT			8
#define CM_CLKSEL_DPLL_M_MASK			(0x7FF << 8)
#define CM_CLKSEL_DPLL_N_SHIFT			0
#define CM_CLKSEL_DPLL_N_MASK			0x7F
#define CM_CLKSEL_DCC_EN_SHIFT			22
#define CM_CLKSEL_DCC_EN_MASK			(1 << 22)

#define OMAP4_DPLL_MAX_N	127

/* CM_SYS_CLKSEL */
#define CM_SYS_CLKSEL_SYS_CLKSEL_MASK	7

/* CM_CLKSEL_CORE */
#define CLKSEL_CORE_SHIFT	0
#define CLKSEL_L3_SHIFT		4
#define CLKSEL_L4_SHIFT		8

#define CLKSEL_CORE_X2_DIV_1	0
#define CLKSEL_L3_CORE_DIV_2	1
#define CLKSEL_L4_L3_DIV_2	1

/* CM_ABE_PLL_REF_CLKSEL */
#define CM_ABE_PLL_REF_CLKSEL_CLKSEL_SHIFT	0
#define CM_ABE_PLL_REF_CLKSEL_CLKSEL_MASK	1
#define CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK	0
#define CM_ABE_PLL_REF_CLKSEL_CLKSEL_32KCLK	1

/* CM_BYPCLK_DPLL_IVA */
#define CM_BYPCLK_DPLL_IVA_CLKSEL_SHIFT		0
#define CM_BYPCLK_DPLL_IVA_CLKSEL_MASK		3

#define DPLL_IVA_CLKSEL_CORE_X2_DIV_2		1

/* CM_SHADOW_FREQ_CONFIG1 */
#define SHADOW_FREQ_CONFIG1_FREQ_UPDATE_MASK	1
#define SHADOW_FREQ_CONFIG1_DLL_OVERRIDE_MASK	4
#define SHADOW_FREQ_CONFIG1_DLL_RESET_MASK	8

#define SHADOW_FREQ_CONFIG1_DPLL_EN_SHIFT	8
#define SHADOW_FREQ_CONFIG1_DPLL_EN_MASK	(7 << 8)

#define SHADOW_FREQ_CONFIG1_M2_DIV_SHIFT	11
#define SHADOW_FREQ_CONFIG1_M2_DIV_MASK		(0x1F << 11)

/*CM_<clock_domain>__CLKCTRL */
#define CD_CLKCTRL_CLKTRCTRL_SHIFT		0
#define CD_CLKCTRL_CLKTRCTRL_MASK		3

#define CD_CLKCTRL_CLKTRCTRL_NO_SLEEP		0
#define CD_CLKCTRL_CLKTRCTRL_SW_SLEEP		1
#define CD_CLKCTRL_CLKTRCTRL_SW_WKUP		2
#define CD_CLKCTRL_CLKTRCTRL_HW_AUTO		3


/* CM_<clock_domain>_<module>_CLKCTRL */
#define MODULE_CLKCTRL_MODULEMODE_SHIFT		0
#define MODULE_CLKCTRL_MODULEMODE_MASK		3
#define MODULE_CLKCTRL_IDLEST_SHIFT		16
#define MODULE_CLKCTRL_IDLEST_MASK		(3 << 16)

#define MODULE_CLKCTRL_MODULEMODE_SW_DISABLE		0
#define MODULE_CLKCTRL_MODULEMODE_HW_AUTO		1
#define MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN	2

#define MODULE_CLKCTRL_IDLEST_FULLY_FUNCTIONAL	0
#define MODULE_CLKCTRL_IDLEST_TRANSITIONING	1
#define MODULE_CLKCTRL_IDLEST_IDLE		2
#define MODULE_CLKCTRL_IDLEST_DISABLED		3

/* CM_L4PER_GPIO4_CLKCTRL */
#define GPIO4_CLKCTRL_OPTFCLKEN_MASK		(1 << 8)

/* CM_L3INIT_HSMMCn_CLKCTRL */
#define HSMMC_CLKCTRL_CLKSEL_MASK		(1 << 24)

/* CM_WKUP_GPTIMER1_CLKCTRL */
#define GPTIMER1_CLKCTRL_CLKSEL_MASK		(1 << 24)

/* CM_CAM_ISS_CLKCTRL */
#define ISS_CLKCTRL_OPTFCLKEN_MASK		(1 << 8)

/* CM_DSS_DSS_CLKCTRL */
#define DSS_CLKCTRL_OPTFCLKEN_MASK		0xF00

/* CM_L3INIT_USBPHY_CLKCTRL */
#define USBPHY_CLKCTRL_OPTFCLKEN_PHY_48M_MASK	8

/* CM_MPU_MPU_CLKCTRL */
#define MPU_CLKCTRL_CLKSEL_EMIF_DIV_MODE_SHIFT	24
#define MPU_CLKCTRL_CLKSEL_EMIF_DIV_MODE_MASK	(1 << 24)
#define MPU_CLKCTRL_CLKSEL_ABE_DIV_MODE_SHIFT	25
#define MPU_CLKCTRL_CLKSEL_ABE_DIV_MODE_MASK	(1 << 25)

/* Clock frequencies */
#define OMAP_SYS_CLK_FREQ_38_4_MHZ	38400000
#define OMAP_SYS_CLK_IND_38_4_MHZ	6
#define OMAP_32K_CLK_FREQ		32768

/* PRM_VC_VAL_BYPASS */
#define PRM_VC_I2C_CHANNEL_FREQ_KHZ	400

/* SMPS */
#define SMPS_I2C_SLAVE_ADDR	0x12
#define SMPS_REG_ADDR_VCORE1	0x55
#define SMPS_REG_ADDR_VCORE2	0x5B
#define SMPS_REG_ADDR_VCORE3	0x61

#define PHOENIX_SMPS_BASE_VOLT_STD_MODE_UV		607700
#define PHOENIX_SMPS_BASE_VOLT_STD_MODE_WITH_OFFSET_UV	709000

/* TPS */
#define TPS62361_I2C_SLAVE_ADDR		0x60
#define TPS62361_REG_ADDR_SET0		0x0
#define TPS62361_REG_ADDR_SET1		0x1
#define TPS62361_REG_ADDR_SET2		0x2
#define TPS62361_REG_ADDR_SET3		0x3
#define TPS62361_REG_ADDR_CTRL		0x4
#define TPS62361_REG_ADDR_TEMP		0x5
#define TPS62361_REG_ADDR_RMP_CTRL	0x6
#define TPS62361_REG_ADDR_CHIP_ID	0x8
#define TPS62361_REG_ADDR_CHIP_ID_2	0x9

#define TPS62361_BASE_VOLT_MV	500
#define TPS62361_VSEL0_GPIO	7

/* AUXCLKx reg fields */
#define AUXCLK_ENABLE_MASK		(1 << 8)
#define AUXCLK_SRCSELECT_SHIFT		1
#define AUXCLK_SRCSELECT_MASK		(3 << 1)
#define AUXCLK_CLKDIV_SHIFT		16
#define AUXCLK_CLKDIV_MASK		(0xF << 16)

#define AUXCLK_SRCSELECT_SYS_CLK	0
#define AUXCLK_SRCSELECT_CORE_DPLL	1
#define AUXCLK_SRCSELECT_PER_DPLL	2
#define AUXCLK_SRCSELECT_ALTERNATE	3

#define AUXCLK_CLKDIV_2			1
#define AUXCLK_CLKDIV_16		0xF

/* ALTCLKSRC */
#define ALTCLKSRC_MODE_MASK		3
#define ALTCLKSRC_ENABLE_INT_MASK	4
#define ALTCLKSRC_ENABLE_EXT_MASK	8

#define ALTCLKSRC_MODE_ACTIVE		1

/* Defines for DPLL setup */
#define DPLL_LOCKED_FREQ_TOLERANCE_0		0
#define DPLL_LOCKED_FREQ_TOLERANCE_500_KHZ	500
#define DPLL_LOCKED_FREQ_TOLERANCE_1_MHZ	1000

#define DPLL_NO_LOCK	0
#define DPLL_LOCK	1

#define NUM_SYS_CLKS	7

struct dpll_regs {
	u32 cm_clkmode_dpll;
	u32 cm_idlest_dpll;
	u32 cm_autoidle_dpll;
	u32 cm_clksel_dpll;
	u32 cm_div_m2_dpll;
	u32 cm_div_m3_dpll;
	u32 cm_div_m4_dpll;
	u32 cm_div_m5_dpll;
	u32 cm_div_m6_dpll;
	u32 cm_div_m7_dpll;
};

/* DPLL parameter table */
struct dpll_params {
	u32 m;
	u32 n;
	s8 m2;
	s8 m3;
	s8 m4;
	s8 m5;
	s8 m6;
	s8 m7;
};

extern const u32 sys_clk_array[8];

void scale_vcores(void);
void do_scale_tps62361(int gpio, u32 reg, u32 volt_mv);
u32 get_offset_code(u32 offset);
u32 omap_ddr_clk(void);
void do_scale_vcore(u32 vcore_reg, u32 volt_mv);
void setup_post_dividers(u32 const base, const struct dpll_params *params);
u32 get_sys_clk_index(void);
void enable_basic_clocks(void);
void enable_basic_uboot_clocks(void);
void enable_non_essential_clocks(void);
void do_enable_clocks(u32 const *clk_domains,
		      u32 const *clk_modules_hw_auto,
		      u32 const *clk_modules_explicit_en,
		      u8 wait_for_enable);
const struct dpll_params *get_mpu_dpll_params(void);
const struct dpll_params *get_core_dpll_params(void);
const struct dpll_params *get_per_dpll_params(void);
const struct dpll_params *get_iva_dpll_params(void);
const struct dpll_params *get_usb_dpll_params(void);
const struct dpll_params *get_abe_dpll_params(void);

struct omap4_scrm_regs {
	u32 revision;           /* 0x0000 */
	u32 pad00[63];
	u32 clksetuptime;       /* 0x0100 */
	u32 pmicsetuptime;      /* 0x0104 */
	u32 pad01[2];
	u32 altclksrc;          /* 0x0110 */
	u32 pad02[2];
	u32 c2cclkm;            /* 0x011c */
	u32 pad03[56];
	u32 extclkreq;          /* 0x0200 */
	u32 accclkreq;          /* 0x0204 */
	u32 pwrreq;             /* 0x0208 */
	u32 pad04[1];
	u32 auxclkreq0;         /* 0x0210 */
	u32 auxclkreq1;         /* 0x0214 */
	u32 auxclkreq2;         /* 0x0218 */
	u32 auxclkreq3;         /* 0x021c */
	u32 auxclkreq4;         /* 0x0220 */
	u32 auxclkreq5;         /* 0x0224 */
	u32 pad05[3];
	u32 c2cclkreq;          /* 0x0234 */
	u32 pad06[54];
	u32 auxclk0;            /* 0x0310 */
	u32 auxclk1;            /* 0x0314 */
	u32 auxclk2;            /* 0x0318 */
	u32 auxclk3;            /* 0x031c */
	u32 auxclk4;            /* 0x0320 */
	u32 auxclk5;            /* 0x0324 */
	u32 pad07[54];
	u32 rsttime_reg;        /* 0x0400 */
	u32 pad08[6];
	u32 c2crstctrl;         /* 0x041c */
	u32 extpwronrstctrl;    /* 0x0420 */
	u32 pad09[59];
	u32 extwarmrstst_reg;   /* 0x0510 */
	u32 apewarmrstst_reg;   /* 0x0514 */
	u32 pad10[1];
	u32 c2cwarmrstst_reg;   /* 0x051C */
};
#endif /* _CLOCKS_OMAP4_H_ */