| /* |
| * OMAP3/4 Voltage Controller (VC) structure and macro definitions |
| * |
| * Copyright (C) 2007, 2010 Texas Instruments, Inc. |
| * Rajendra Nayak <rnayak@ti.com> |
| * Lesly A M <x0080970@ti.com> |
| * Thara Gopinath <thara@ti.com> |
| * |
| * Copyright (C) 2008, 2011 Nokia Corporation |
| * Kalle Jokiniemi |
| * Paul Walmsley |
| * |
| * 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_VC_H |
| #define __ARCH_ARM_MACH_OMAP2_VC_H |
| |
| #include <linux/kernel.h> |
| |
| struct voltagedomain; |
| |
| /** |
| * struct omap_vc_common - per-VC register/bitfield data |
| * @cmd_on_mask: ON bitmask in PRM_VC_CMD_VAL* register |
| * @valid: VALID bitmask in PRM_VC_BYPASS_VAL register |
| * @prm_mod: PRM module id used for PRM register access |
| * @smps_sa_reg: Offset of PRM_VC_SMPS_SA reg from PRM start |
| * @smps_volra_reg: Offset of PRM_VC_SMPS_VOL_RA reg from PRM start |
| * @bypass_val_reg: Offset of PRM_VC_BYPASS_VAL reg from PRM start |
| * @data_shift: DATA field shift in PRM_VC_BYPASS_VAL register |
| * @slaveaddr_shift: SLAVEADDR field shift in PRM_VC_BYPASS_VAL register |
| * @regaddr_shift: REGADDR field shift in PRM_VC_BYPASS_VAL register |
| * @cmd_on_shift: ON field shift in PRM_VC_CMD_VAL_* register |
| * @cmd_onlp_shift: ONLP field shift in PRM_VC_CMD_VAL_* register |
| * @cmd_ret_shift: RET field shift in PRM_VC_CMD_VAL_* register |
| * @cmd_off_shift: OFF field shift in PRM_VC_CMD_VAL_* register |
| * |
| * XXX One of cmd_on_mask and cmd_on_shift are not needed |
| * XXX VALID should probably be a shift, not a mask |
| */ |
| struct omap_vc_common { |
| u32 cmd_on_mask; |
| u32 valid; |
| s16 prm_mod; |
| u8 smps_sa_reg; |
| u8 smps_volra_reg; |
| u8 bypass_val_reg; |
| u8 data_shift; |
| u8 slaveaddr_shift; |
| u8 regaddr_shift; |
| u8 cmd_on_shift; |
| u8 cmd_onlp_shift; |
| u8 cmd_ret_shift; |
| u8 cmd_off_shift; |
| }; |
| |
| /** |
| * struct omap_vc_channel - VC per-instance data |
| * @common: pointer to VC common data for this platform |
| * @smps_sa_mask: SA* bitmask in the PRM_VC_SMPS_SA register |
| * @smps_volra_mask: VOLRA* bitmask in the PRM_VC_VOL_RA register |
| * @smps_sa_shift: SA* field shift in the PRM_VC_SMPS_SA register |
| * @smps_volra_shift: VOLRA* field shift in the PRM_VC_VOL_RA register |
| * |
| * XXX It is not necessary to have both a *_mask and a *_shift - |
| * remove one |
| */ |
| struct omap_vc_channel { |
| const struct omap_vc_common *common; |
| u32 smps_sa_mask; |
| u32 smps_volra_mask; |
| u8 cmdval_reg; |
| u8 smps_sa_shift; |
| u8 smps_volra_shift; |
| }; |
| |
| extern struct omap_vc_channel omap3_vc_mpu; |
| extern struct omap_vc_channel omap3_vc_core; |
| |
| extern struct omap_vc_channel omap4_vc_mpu; |
| extern struct omap_vc_channel omap4_vc_iva; |
| extern struct omap_vc_channel omap4_vc_core; |
| |
| void omap_vc_init_channel(struct voltagedomain *voltdm); |
| int omap_vc_pre_scale(struct voltagedomain *voltdm, |
| unsigned long target_volt, |
| u8 *target_vsel, u8 *current_vsel); |
| void omap_vc_post_scale(struct voltagedomain *voltdm, |
| unsigned long target_volt, |
| u8 target_vsel, u8 current_vsel); |
| int omap_vc_bypass_scale(struct voltagedomain *voltdm, |
| unsigned long target_volt); |
| |
| #endif |
| |