arch/arm/mach-omap2/vc.h

   1 /*
   2  * OMAP3/4 Voltage Controller (VC) structure and macro definitions
   3  *
   4  * Copyright (C) 2007, 2010 Texas Instruments, Inc.
   5  * Rajendra Nayak <rnayak@ti.com>
   6  * Lesly A M <x0080970@ti.com>
   7  * Thara Gopinath <thara@ti.com>
   8  *
   9  * Copyright (C) 2008, 2011 Nokia Corporation
  10  * Kalle Jokiniemi
  11  * Paul Walmsley
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License version
  15  * 2 as published by the Free Software Foundation.
  16  */
  17 #ifndef __ARCH_ARM_MACH_OMAP2_VC_H
  18 #define __ARCH_ARM_MACH_OMAP2_VC_H
  19
  20 #include <linux/kernel.h>
  21
  22 /**
  23  * struct omap_vc_common_data - per-VC register/bitfield data
  24  * @cmd_on_mask: ON bitmask in PRM_VC_CMD_VAL* register
  25  * @valid: VALID bitmask in PRM_VC_BYPASS_VAL register
  26  * @smps_sa_reg: Offset of PRM_VC_SMPS_SA reg from PRM start
  27  * @smps_volra_reg: Offset of PRM_VC_SMPS_VOL_RA reg from PRM start
  28  * @bypass_val_reg: Offset of PRM_VC_BYPASS_VAL reg from PRM start
  29  * @data_shift: DATA field shift in PRM_VC_BYPASS_VAL register
  30  * @slaveaddr_shift: SLAVEADDR field shift in PRM_VC_BYPASS_VAL register
  31  * @regaddr_shift: REGADDR field shift in PRM_VC_BYPASS_VAL register
  32  * @cmd_on_shift: ON field shift in PRM_VC_CMD_VAL_* register
  33  * @cmd_onlp_shift: ONLP field shift in PRM_VC_CMD_VAL_* register
  34  * @cmd_ret_shift: RET field shift in PRM_VC_CMD_VAL_* register
  35  * @cmd_off_shift: OFF field shift in PRM_VC_CMD_VAL_* register
  36  *
  37  * XXX One of cmd_on_mask and cmd_on_shift are not needed
  38  * XXX VALID should probably be a shift, not a mask
  39  */
  40 struct omap_vc_common_data {
  41         u32 cmd_on_mask;
  42         u32 valid;
  43         u8 smps_sa_reg;
  44         u8 smps_volra_reg;
  45         u8 bypass_val_reg;
  46         u8 data_shift;
  47         u8 slaveaddr_shift;
  48         u8 regaddr_shift;
  49         u8 cmd_on_shift;
  50         u8 cmd_onlp_shift;
  51         u8 cmd_ret_shift;
  52         u8 cmd_off_shift;
  53 };
  54
  55 /**
  56  * struct omap_vc_instance_data - VC per-instance data
  57  * @vc_common: pointer to VC common data for this platform
  58  * @smps_sa_mask: SA* bitmask in the PRM_VC_SMPS_SA register
  59  * @smps_volra_mask: VOLRA* bitmask in the PRM_VC_VOL_RA register
  60  * @smps_sa_shift: SA* field shift in the PRM_VC_SMPS_SA register
  61  * @smps_volra_shift: VOLRA* field shift in the PRM_VC_VOL_RA register
  62  *
  63  * XXX It is not necessary to have both a *_mask and a *_shift -
  64  *     remove one
  65  */
  66 struct omap_vc_instance_data {
  67         const struct omap_vc_common_data *vc_common;
  68         u32 smps_sa_mask;
  69         u32 smps_volra_mask;
  70         u8 cmdval_reg;
  71         u8 smps_sa_shift;
  72         u8 smps_volra_shift;
  73 };
  74
  75 extern struct omap_vc_instance_data omap3_vc1_data;
  76 extern struct omap_vc_instance_data omap3_vc2_data;
  77
  78 extern struct omap_vc_instance_data omap4_vc_mpu_data;
  79 extern struct omap_vc_instance_data omap4_vc_iva_data;
  80 extern struct omap_vc_instance_data omap4_vc_core_data;
  81
  82 #endif
  83