arch/arm/mach-omap2/voltagedomains44xx_data.c

   1 /*
   2  * OMAP3/OMAP4 Voltage Management Routines
   3  *
   4  * Author: Thara Gopinath       <thara@ti.com>
   5  *
   6  * Copyright (C) 2007 Texas Instruments, Inc.
   7  * Rajendra Nayak <rnayak@ti.com>
   8  * Lesly A M <x0080970@ti.com>
   9  *
  10  * Copyright (C) 2008 Nokia Corporation
  11  * Kalle Jokiniemi
  12  *
  13  * Copyright (C) 2010 Texas Instruments, Inc.
  14  * Thara Gopinath <thara@ti.com>
  15  *
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License version 2 as
  18  * published by the Free Software Foundation.
  19  */
  20 #include <linux/kernel.h>
  21 #include <linux/err.h>
  22 #include <linux/init.h>
  23
  24 #include <plat/common.h>
  25
  26 #include "prm-regbits-44xx.h"
  27 #include "prm44xx.h"
  28 #include "prcm44xx.h"
  29 #include "prminst44xx.h"
  30 #include "voltage.h"
  31 #include "omap_opp_data.h"
  32 #include "vc.h"
  33 #include "vp.h"
  34
  35 static const struct omap_vfsm_instance_data omap4_vdd_mpu_vfsm_data = {
  36         .voltsetup_reg = OMAP4_PRM_VOLTSETUP_MPU_RET_SLEEP_OFFSET,
  37 };
  38
  39 static struct omap_vdd_info omap4_vdd_mpu_info = {
  40         .vp_data = &omap4_vp_mpu_data,
  41         .vc_data = &omap4_vc_mpu_data,
  42         .vfsm = &omap4_vdd_mpu_vfsm_data,
  43         .voltdm = {
  44                 .name = "mpu",
  45         },
  46 };
  47
  48 static const struct omap_vfsm_instance_data omap4_vdd_iva_vfsm_data = {
  49         .voltsetup_reg = OMAP4_PRM_VOLTSETUP_IVA_RET_SLEEP_OFFSET,
  50 };
  51
  52 static struct omap_vdd_info omap4_vdd_iva_info = {
  53         .vp_data = &omap4_vp_iva_data,
  54         .vc_data = &omap4_vc_iva_data,
  55         .vfsm = &omap4_vdd_iva_vfsm_data,
  56         .voltdm = {
  57                 .name = "iva",
  58         },
  59 };
  60
  61 static const struct omap_vfsm_instance_data omap4_vdd_core_vfsm_data = {
  62         .voltsetup_reg = OMAP4_PRM_VOLTSETUP_CORE_RET_SLEEP_OFFSET,
  63 };
  64
  65 static struct omap_vdd_info omap4_vdd_core_info = {
  66         .vp_data = &omap4_vp_core_data,
  67         .vc_data = &omap4_vc_core_data,
  68         .vfsm = &omap4_vdd_core_vfsm_data,
  69         .voltdm = {
  70                 .name = "core",
  71         },
  72 };
  73
  74 /* OMAP4 VDD structures */
  75 static struct omap_vdd_info *omap4_vdd_info[] = {
  76         &omap4_vdd_mpu_info,
  77         &omap4_vdd_iva_info,
  78         &omap4_vdd_core_info,
  79 };
  80
  81 /* OMAP4 specific voltage init functions */
  82 static int __init omap44xx_voltage_early_init(void)
  83 {
  84         s16 prm_mod = OMAP4430_PRM_DEVICE_INST;
  85         s16 prm_irqst_ocp_mod = OMAP4430_PRM_OCP_SOCKET_INST;
  86
  87         if (!cpu_is_omap44xx())
  88                 return 0;
  89
  90         /*
  91          * XXX Will depend on the process, validation, and binning
  92          * for the currently-running IC
  93          */
  94         omap4_vdd_mpu_info.volt_data = omap44xx_vdd_mpu_volt_data;
  95         omap4_vdd_iva_info.volt_data = omap44xx_vdd_iva_volt_data;
  96         omap4_vdd_core_info.volt_data = omap44xx_vdd_core_volt_data;
  97
  98         return omap_voltage_early_init(prm_mod, prm_irqst_ocp_mod,
  99                                        omap4_vdd_info,
 100                                        ARRAY_SIZE(omap4_vdd_info));
 101 };
 102 core_initcall(omap44xx_voltage_early_init);