2010-05-29 10:32:21 -06:00
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/*
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* OMAP Voltage Management Routines
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*
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* Author: Thara Gopinath <thara@ti.com>
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*
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* Copyright (C) 2009 Texas Instruments, Inc.
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* Thara Gopinath <thara@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __ARCH_ARM_MACH_OMAP2_VOLTAGE_H
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#define __ARCH_ARM_MACH_OMAP2_VOLTAGE_H
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2011-01-05 03:57:04 -07:00
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#include <linux/err.h>
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2010-05-29 10:32:21 -06:00
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#define VOLTSCALE_VPFORCEUPDATE 1
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#define VOLTSCALE_VCBYPASS 2
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/*
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* OMAP3 GENERIC setup times. Revisit to see if these needs to be
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* passed from board or PMIC file
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*/
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#define OMAP3_CLKSETUP 0xff
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#define OMAP3_VOLTOFFSET 0xff
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#define OMAP3_VOLTSETUP2 0xff
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/* Voltage value defines */
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#define OMAP3430_VDD_MPU_OPP1_UV 975000
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#define OMAP3430_VDD_MPU_OPP2_UV 1075000
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#define OMAP3430_VDD_MPU_OPP3_UV 1200000
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#define OMAP3430_VDD_MPU_OPP4_UV 1270000
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#define OMAP3430_VDD_MPU_OPP5_UV 1350000
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#define OMAP3430_VDD_CORE_OPP1_UV 975000
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#define OMAP3430_VDD_CORE_OPP2_UV 1050000
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#define OMAP3430_VDD_CORE_OPP3_UV 1150000
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#define OMAP3630_VDD_MPU_OPP50_UV 1012500
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#define OMAP3630_VDD_MPU_OPP100_UV 1200000
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#define OMAP3630_VDD_MPU_OPP120_UV 1325000
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#define OMAP3630_VDD_MPU_OPP1G_UV 1375000
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#define OMAP3630_VDD_CORE_OPP50_UV 1000000
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#define OMAP3630_VDD_CORE_OPP100_UV 1200000
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2010-12-10 10:45:23 -07:00
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#define OMAP4430_VDD_MPU_OPP50_UV 930000
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#define OMAP4430_VDD_MPU_OPP100_UV 1100000
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#define OMAP4430_VDD_MPU_OPPTURBO_UV 1260000
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#define OMAP4430_VDD_MPU_OPPNITRO_UV 1350000
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#define OMAP4430_VDD_IVA_OPP50_UV 930000
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#define OMAP4430_VDD_IVA_OPP100_UV 1100000
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#define OMAP4430_VDD_IVA_OPPTURBO_UV 1260000
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#define OMAP4430_VDD_CORE_OPP50_UV 930000
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#define OMAP4430_VDD_CORE_OPP100_UV 1100000
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2010-05-29 10:32:21 -06:00
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/**
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* struct voltagedomain - omap voltage domain global structure.
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* @name: Name of the voltage domain which can be used as a unique
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* identifier.
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*/
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struct voltagedomain {
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char *name;
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};
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/**
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* struct omap_volt_data - Omap voltage specific data.
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* @voltage_nominal: The possible voltage value in uV
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* @sr_efuse_offs: The offset of the efuse register(from system
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* control module base address) from where to read
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* the n-target value for the smartreflex module.
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* @sr_errminlimit: Error min limit value for smartreflex. This value
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* differs at differnet opp and thus is linked
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* with voltage.
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* @vp_errorgain: Error gain value for the voltage processor. This
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* field also differs according to the voltage/opp.
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*/
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struct omap_volt_data {
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u32 volt_nominal;
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u32 sr_efuse_offs;
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u8 sr_errminlimit;
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u8 vp_errgain;
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};
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/**
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* struct omap_volt_pmic_info - PMIC specific data required by voltage driver.
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* @slew_rate: PMIC slew rate (in uv/us)
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* @step_size: PMIC voltage step size (in uv)
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* @vsel_to_uv: PMIC API to convert vsel value to actual voltage in uV.
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* @uv_to_vsel: PMIC API to convert voltage in uV to vsel value.
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*/
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struct omap_volt_pmic_info {
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int slew_rate;
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int step_size;
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u32 on_volt;
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u32 onlp_volt;
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u32 ret_volt;
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u32 off_volt;
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u16 volt_setup_time;
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u8 vp_erroroffset;
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u8 vp_vstepmin;
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u8 vp_vstepmax;
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u8 vp_vddmin;
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u8 vp_vddmax;
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u8 vp_timeout_us;
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u8 i2c_slave_addr;
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u8 pmic_reg;
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unsigned long (*vsel_to_uv) (const u8 vsel);
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u8 (*uv_to_vsel) (unsigned long uV);
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};
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unsigned long omap_vp_get_curr_volt(struct voltagedomain *voltdm);
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void omap_vp_enable(struct voltagedomain *voltdm);
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void omap_vp_disable(struct voltagedomain *voltdm);
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int omap_voltage_scale_vdd(struct voltagedomain *voltdm,
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unsigned long target_volt);
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void omap_voltage_reset(struct voltagedomain *voltdm);
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void omap_voltage_get_volttable(struct voltagedomain *voltdm,
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struct omap_volt_data **volt_data);
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struct omap_volt_data *omap_voltage_get_voltdata(struct voltagedomain *voltdm,
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unsigned long volt);
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unsigned long omap_voltage_get_nom_volt(struct voltagedomain *voltdm);
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struct dentry *omap_voltage_get_dbgdir(struct voltagedomain *voltdm);
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#ifdef CONFIG_PM
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int omap_voltage_register_pmic(struct voltagedomain *voltdm,
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struct omap_volt_pmic_info *pmic_info);
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void omap_change_voltscale_method(struct voltagedomain *voltdm,
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int voltscale_method);
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2011-01-05 03:57:03 -07:00
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/* API to get the voltagedomain pointer */
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struct voltagedomain *omap_voltage_domain_lookup(char *name);
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2010-05-29 10:32:21 -06:00
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int omap_voltage_late_init(void);
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#else
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static inline int omap_voltage_register_pmic(struct voltagedomain *voltdm,
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2011-01-05 03:57:02 -07:00
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struct omap_volt_pmic_info *pmic_info)
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{
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return -EINVAL;
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}
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2010-05-29 10:32:21 -06:00
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static inline void omap_change_voltscale_method(struct voltagedomain *voltdm,
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int voltscale_method) {}
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static inline int omap_voltage_late_init(void)
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{
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return -EINVAL;
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}
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2011-01-05 03:57:03 -07:00
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static inline struct voltagedomain *omap_voltage_domain_lookup(char *name)
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{
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return ERR_PTR(-EINVAL);
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}
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2010-05-29 10:32:21 -06:00
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#endif
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#endif
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