diff options
Diffstat (limited to 'arch/arm/plat-omap/include/plat/voltage.h')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/voltage.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/voltage.h b/arch/arm/plat-omap/include/plat/voltage.h new file mode 100644 index 000000000000..0ff123399f3b --- /dev/null +++ b/arch/arm/plat-omap/include/plat/voltage.h @@ -0,0 +1,146 @@ +/* + * 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 + +#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; +}; + +/* API to get the voltagedomain pointer */ +struct voltagedomain *omap_voltage_domain_lookup(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); +int omap_voltage_late_init(void); +#else +static inline int omap_voltage_register_pmic(struct voltagedomain *voltdm, + struct omap_volt_pmic_info *pmic_info) {} +static inline void omap_change_voltscale_method(struct voltagedomain *voltdm, + int voltscale_method) {} +static inline int omap_voltage_late_init(void) +{ + return -EINVAL; +} +#endif + +#endif |