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133 lines
4.4 KiB
133 lines
4.4 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* OMAP3/4 Voltage Controller (VC) structure and macro definitions |
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* |
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* Copyright (C) 2007, 2010 Texas Instruments, Inc. |
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* Rajendra Nayak <[email protected]> |
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* Lesly A M <[email protected]> |
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* Thara Gopinath <[email protected]> |
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* |
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* Copyright (C) 2008, 2011 Nokia Corporation |
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* Kalle Jokiniemi |
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* Paul Walmsley |
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*/ |
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#ifndef __ARCH_ARM_MACH_OMAP2_VC_H |
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#define __ARCH_ARM_MACH_OMAP2_VC_H |
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#include <linux/kernel.h> |
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struct voltagedomain; |
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/** |
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* struct omap_vc_common - per-VC register/bitfield data |
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* @cmd_on_mask: ON bitmask in PRM_VC_CMD_VAL* register |
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* @valid: VALID bitmask in PRM_VC_BYPASS_VAL register |
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* @bypass_val_reg: Offset of PRM_VC_BYPASS_VAL reg from PRM start |
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* @data_shift: DATA field shift in PRM_VC_BYPASS_VAL register |
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* @slaveaddr_shift: SLAVEADDR field shift in PRM_VC_BYPASS_VAL register |
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* @regaddr_shift: REGADDR field shift in PRM_VC_BYPASS_VAL register |
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* @cmd_on_shift: ON field shift in PRM_VC_CMD_VAL_* register |
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* @cmd_onlp_shift: ONLP field shift in PRM_VC_CMD_VAL_* register |
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* @cmd_ret_shift: RET field shift in PRM_VC_CMD_VAL_* register |
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* @cmd_off_shift: OFF field shift in PRM_VC_CMD_VAL_* register |
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* @i2c_cfg_reg: I2C configuration register offset |
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* @i2c_cfg_clear_mask: high-speed mode bit clear mask in I2C config register |
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* @i2c_cfg_hsen_mask: high-speed mode bit field mask in I2C config register |
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* @i2c_mcode_mask: MCODE field mask for I2C config register |
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* |
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* XXX One of cmd_on_mask and cmd_on_shift are not needed |
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* XXX VALID should probably be a shift, not a mask |
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*/ |
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struct omap_vc_common { |
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u32 cmd_on_mask; |
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u32 valid; |
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u8 bypass_val_reg; |
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u8 data_shift; |
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u8 slaveaddr_shift; |
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u8 regaddr_shift; |
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u8 cmd_on_shift; |
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u8 cmd_onlp_shift; |
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u8 cmd_ret_shift; |
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u8 cmd_off_shift; |
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u8 i2c_cfg_reg; |
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u8 i2c_cfg_clear_mask; |
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u8 i2c_cfg_hsen_mask; |
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u8 i2c_mcode_mask; |
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}; |
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/* omap_vc_channel.flags values */ |
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#define OMAP_VC_CHANNEL_DEFAULT BIT(0) |
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#define OMAP_VC_CHANNEL_CFG_MUTANT BIT(1) |
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/** |
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* struct omap_vc_channel - VC per-instance data |
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* @i2c_slave_addr: I2C slave address of PMIC for this VC channel |
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* @volt_reg_addr: voltage configuration register address |
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* @cmd_reg_addr: command configuration register address |
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* @setup_time: setup time (in sys_clk cycles) of regulator for this channel |
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* @cfg_channel: current value of VC channel configuration register |
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* @i2c_high_speed: whether or not to use I2C high-speed mode |
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* |
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* @common: pointer to VC common data for this platform |
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* @smps_sa_mask: i2c slave address bitmask in the PRM_VC_SMPS_SA register |
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* @smps_volra_mask: VOLRA* bitmask in the PRM_VC_VOL_RA register |
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* @smps_cmdra_mask: CMDRA* bitmask in the PRM_VC_CMD_RA register |
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* @cmdval_reg: register for on/ret/off voltage level values for this channel |
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* @smps_sa_reg: Offset of PRM_VC_SMPS_SA reg from PRM start |
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* @smps_volra_reg: Offset of PRM_VC_SMPS_VOL_RA reg from PRM start |
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* @smps_cmdra_reg: Offset of PRM_VC_SMPS_CMD_RA reg from PRM start |
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* @cfg_channel_reg: VC channel configuration register |
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* @cfg_channel_sa_shift: bit shift for slave address cfg_channel register |
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* @flags: VC channel-specific flags (optional) |
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*/ |
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struct omap_vc_channel { |
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/* channel state */ |
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u16 i2c_slave_addr; |
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u16 volt_reg_addr; |
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u16 cmd_reg_addr; |
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u8 cfg_channel; |
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bool i2c_high_speed; |
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/* register access data */ |
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const struct omap_vc_common *common; |
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u32 smps_sa_mask; |
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u32 smps_volra_mask; |
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u32 smps_cmdra_mask; |
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u8 cmdval_reg; |
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u8 smps_sa_reg; |
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u8 smps_volra_reg; |
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u8 smps_cmdra_reg; |
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u8 cfg_channel_reg; |
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u8 cfg_channel_sa_shift; |
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u8 flags; |
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}; |
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extern struct omap_vc_channel omap3_vc_mpu; |
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extern struct omap_vc_channel omap3_vc_core; |
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extern struct omap_vc_channel omap4_vc_mpu; |
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extern struct omap_vc_channel omap4_vc_iva; |
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extern struct omap_vc_channel omap4_vc_core; |
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extern struct omap_vc_param omap3_mpu_vc_data; |
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extern struct omap_vc_param omap3_core_vc_data; |
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extern struct omap_vc_param omap4_mpu_vc_data; |
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extern struct omap_vc_param omap4_iva_vc_data; |
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extern struct omap_vc_param omap4_core_vc_data; |
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void omap3_vc_set_pmic_signaling(int core_next_state); |
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void omap4_vc_set_pmic_signaling(int core_next_state); |
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void omap_vc_init_channel(struct voltagedomain *voltdm); |
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int omap_vc_pre_scale(struct voltagedomain *voltdm, |
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unsigned long target_volt, |
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u8 *target_vsel, u8 *current_vsel); |
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void omap_vc_post_scale(struct voltagedomain *voltdm, |
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unsigned long target_volt, |
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u8 target_vsel, u8 current_vsel); |
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int omap_vc_bypass_scale(struct voltagedomain *voltdm, |
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unsigned long target_volt); |
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#endif |
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