| /* |
| * OMAP3/4 Voltage Processor (VP) 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_VP_H |
| #define __ARCH_ARM_MACH_OMAP2_VP_H |
| |
| #include <linux/kernel.h> |
| |
| /* XXX document */ |
| #define VP_IDLE_TIMEOUT 200 |
| #define VP_TRANXDONE_TIMEOUT 300 |
| |
| |
| /** |
| * struct omap_vp_common_data - register data common to all VDDs |
| * @vpconfig_errorgain_mask: ERRORGAIN bitmask in the PRM_VP*_CONFIG reg |
| * @vpconfig_initvoltage_mask: INITVOLTAGE bitmask in the PRM_VP*_CONFIG reg |
| * @vpconfig_timeouten_mask: TIMEOUT bitmask in the PRM_VP*_CONFIG reg |
| * @vpconfig_initvdd: INITVDD bitmask in the PRM_VP*_CONFIG reg |
| * @vpconfig_forceupdate: FORCEUPDATE bitmask in the PRM_VP*_CONFIG reg |
| * @vpconfig_vpenable: VPENABLE bitmask in the PRM_VP*_CONFIG reg |
| * @vpconfig_erroroffset_shift: ERROROFFSET field shift in PRM_VP*_CONFIG reg |
| * @vpconfig_errorgain_shift: ERRORGAIN field shift in PRM_VP*_CONFIG reg |
| * @vpconfig_initvoltage_shift: INITVOLTAGE field shift in PRM_VP*_CONFIG reg |
| * @vpconfig_stepmin_shift: VSTEPMIN field shift in the PRM_VP*_VSTEPMIN reg |
| * @vpconfig_smpswaittimemin_shift: SMPSWAITTIMEMIN field shift in PRM_VP*_VSTEPMIN reg |
| * @vpconfig_stepmax_shift: VSTEPMAX field shift in the PRM_VP*_VSTEPMAX reg |
| * @vpconfig_smpswaittimemax_shift: SMPSWAITTIMEMAX field shift in PRM_VP*_VSTEPMAX reg |
| * @vpconfig_vlimitto_vddmin_shift: VDDMIN field shift in PRM_VP*_VLIMITTO reg |
| * @vpconfig_vlimitto_vddmax_shift: VDDMAX field shift in PRM_VP*_VLIMITTO reg |
| * @vpconfig_vlimitto_timeout_shift: TIMEOUT field shift in PRM_VP*_VLIMITTO reg |
| * |
| * XXX It it not necessary to have both a mask and a shift for the same |
| * bitfield - remove one |
| * XXX Many of these fields are wrongly named -- e.g., vpconfig_smps* -- fix! |
| */ |
| struct omap_vp_common_data { |
| u32 vpconfig_errorgain_mask; |
| u32 vpconfig_initvoltage_mask; |
| u32 vpconfig_timeouten; |
| u32 vpconfig_initvdd; |
| u32 vpconfig_forceupdate; |
| u32 vpconfig_vpenable; |
| u8 vpconfig_erroroffset_shift; |
| u8 vpconfig_errorgain_shift; |
| u8 vpconfig_initvoltage_shift; |
| u8 vstepmin_stepmin_shift; |
| u8 vstepmin_smpswaittimemin_shift; |
| u8 vstepmax_stepmax_shift; |
| u8 vstepmax_smpswaittimemax_shift; |
| u8 vlimitto_vddmin_shift; |
| u8 vlimitto_vddmax_shift; |
| u8 vlimitto_timeout_shift; |
| }; |
| |
| /** |
| * struct omap_vp_prm_irqst_data - PRM_IRQSTATUS_MPU.VP_TRANXDONE_ST data |
| * @prm_irqst_reg: reg offset for PRM_IRQSTATUS_MPU from top of PRM |
| * @tranxdone_status: VP_TRANXDONE_ST bitmask in PRM_IRQSTATUS_MPU reg |
| * |
| * XXX prm_irqst_reg does not belong here |
| * XXX Note that on OMAP3, VP_TRANXDONE interrupt may not work due to a |
| * hardware bug |
| * XXX This structure is probably not needed |
| */ |
| struct omap_vp_prm_irqst_data { |
| u8 prm_irqst_reg; |
| u32 tranxdone_status; |
| }; |
| |
| /** |
| * struct omap_vp_instance_data - VP register offsets (per-VDD) |
| * @vp_common: pointer to struct omap_vp_common_data * for this SoC |
| * @prm_irqst_data: pointer to struct omap_vp_prm_irqst_data for this VDD |
| * @vpconfig: PRM_VP*_CONFIG reg offset from PRM start |
| * @vstepmin: PRM_VP*_VSTEPMIN reg offset from PRM start |
| * @vlimitto: PRM_VP*_VLIMITTO reg offset from PRM start |
| * @vstatus: PRM_VP*_VSTATUS reg offset from PRM start |
| * @voltage: PRM_VP*_VOLTAGE reg offset from PRM start |
| * |
| * XXX vp_common is probably not needed since it is per-SoC |
| */ |
| struct omap_vp_instance_data { |
| const struct omap_vp_common_data *vp_common; |
| const struct omap_vp_prm_irqst_data *prm_irqst_data; |
| u8 vpconfig; |
| u8 vstepmin; |
| u8 vstepmax; |
| u8 vlimitto; |
| u8 vstatus; |
| u8 voltage; |
| }; |
| |
| /** |
| * struct omap_vp_runtime_data - VP data populated at runtime by code |
| * @vpconfig_erroroffset: value of ERROROFFSET bitfield in PRM_VP*_CONFIG |
| * @vpconfig_errorgain: value of ERRORGAIN bitfield in PRM_VP*_CONFIG |
| * @vstepmin_smpswaittimemin: value of SMPSWAITTIMEMIN bitfield in PRM_VP*_VSTEPMIN |
| * @vstepmax_smpswaittimemax: value of SMPSWAITTIMEMAX bitfield in PRM_VP*_VSTEPMAX |
| * @vlimitto_timeout: value of TIMEOUT bitfield in PRM_VP*_VLIMITTO |
| * @vstepmin_stepmin: value of VSTEPMIN bitfield in PRM_VP*_VSTEPMIN |
| * @vstepmax_stepmax: value of VSTEPMAX bitfield in PRM_VP*_VSTEPMAX |
| * @vlimitto_vddmin: value of VDDMIN bitfield in PRM_VP*_VLIMITTO |
| * @vlimitto_vddmax: value of VDDMAX bitfield in PRM_VP*_VLIMITTO |
| * |
| * XXX Is this structure really needed? Why not just program the |
| * device directly? They are in PRM space, therefore in the WKUP |
| * powerdomain, so register contents should not be lost in off-mode. |
| * XXX Some of these fields are incorrectly named, e.g., vstep* |
| */ |
| struct omap_vp_runtime_data { |
| u32 vpconfig_erroroffset; |
| u16 vpconfig_errorgain; |
| u16 vstepmin_smpswaittimemin; |
| u16 vstepmax_smpswaittimemax; |
| u16 vlimitto_timeout; |
| u8 vstepmin_stepmin; |
| u8 vstepmax_stepmax; |
| u8 vlimitto_vddmin; |
| u8 vlimitto_vddmax; |
| }; |
| |
| extern struct omap_vp_instance_data omap3_vp1_data; |
| extern struct omap_vp_instance_data omap3_vp2_data; |
| |
| extern struct omap_vp_instance_data omap4_vp_mpu_data; |
| extern struct omap_vp_instance_data omap4_vp_iva_data; |
| extern struct omap_vp_instance_data omap4_vp_core_data; |
| |
| #endif |
