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