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 "common.h"
  25 #include "soc.h"
  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 omap4_vdd_mpu_vfsm = {
  36         .voltsetup_reg = OMAP4_PRM_VOLTSETUP_MPU_RET_SLEEP_OFFSET,
  37         .voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_MPU_OFF_OFFSET,
  38 };
  39
  40 static const struct omap_vfsm_instance omap4_vdd_iva_vfsm = {
  41         .voltsetup_reg = OMAP4_PRM_VOLTSETUP_IVA_RET_SLEEP_OFFSET,
  42         .voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_IVA_OFF_OFFSET,
  43 };
  44
  45 static const struct omap_vfsm_instance omap4_vdd_core_vfsm = {
  46         .voltsetup_reg = OMAP4_PRM_VOLTSETUP_CORE_RET_SLEEP_OFFSET,
  47         .voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_CORE_OFF_OFFSET,
  48 };
  49
  50 static struct voltagedomain omap4_voltdm_mpu = {
  51         .name = "mpu",
  52         .scalable = true,
  53         .read = omap4_prm_vcvp_read,
  54         .write = omap4_prm_vcvp_write,
  55         .rmw = omap4_prm_vcvp_rmw,
  56         .vc = &omap4_vc_mpu,
  57         .vfsm = &omap4_vdd_mpu_vfsm,
  58         .vp = &omap4_vp_mpu,
  59 };
  60
  61 static struct voltagedomain omap4_voltdm_iva = {
  62         .name = "iva",
  63         .scalable = true,
  64         .read = omap4_prm_vcvp_read,
  65         .write = omap4_prm_vcvp_write,
  66         .rmw = omap4_prm_vcvp_rmw,
  67         .vc = &omap4_vc_iva,
  68         .vfsm = &omap4_vdd_iva_vfsm,
  69         .vp = &omap4_vp_iva,
  70 };
  71
  72 static struct voltagedomain omap4_voltdm_core = {
  73         .name = "core",
  74         .scalable = true,
  75         .read = omap4_prm_vcvp_read,
  76         .write = omap4_prm_vcvp_write,
  77         .rmw = omap4_prm_vcvp_rmw,
  78         .vc = &omap4_vc_core,
  79         .vfsm = &omap4_vdd_core_vfsm,
  80         .vp = &omap4_vp_core,
  81 };
  82
  83 static struct voltagedomain omap4_voltdm_wkup = {
  84         .name = "wakeup",
  85 };
  86
  87 static struct voltagedomain *voltagedomains_omap4[] __initdata = {
  88         &omap4_voltdm_mpu,
  89         &omap4_voltdm_iva,
  90         &omap4_voltdm_core,
  91         &omap4_voltdm_wkup,
  92         NULL,
  93 };
  94
  95 static const char *const sys_clk_name __initconst = "sys_clkin_ck";
  96
  97 void __init omap44xx_voltagedomains_init(void)
  98 {
  99         struct voltagedomain *voltdm;
 100         int i;
 101
 102         /*
 103          * XXX Will depend on the process, validation, and binning
 104          * for the currently-running IC
 105          */
 106 #ifdef CONFIG_PM_OPP
 107         if (cpu_is_omap443x()) {
 108                 omap4_voltdm_mpu.volt_data = omap443x_vdd_mpu_volt_data;
 109                 omap4_voltdm_iva.volt_data = omap443x_vdd_iva_volt_data;
 110                 omap4_voltdm_core.volt_data = omap443x_vdd_core_volt_data;
 111         } else if (cpu_is_omap446x()) {
 112                 omap4_voltdm_mpu.volt_data = omap446x_vdd_mpu_volt_data;
 113                 omap4_voltdm_iva.volt_data = omap446x_vdd_iva_volt_data;
 114                 omap4_voltdm_core.volt_data = omap446x_vdd_core_volt_data;
 115         }
 116 #endif
 117
 118         omap4_voltdm_mpu.vp_param = &omap4_mpu_vp_data;
 119         omap4_voltdm_iva.vp_param = &omap4_iva_vp_data;
 120         omap4_voltdm_core.vp_param = &omap4_core_vp_data;
 121
 122         omap4_voltdm_mpu.vc_param = &omap4_mpu_vc_data;
 123         omap4_voltdm_iva.vc_param = &omap4_iva_vc_data;
 124         omap4_voltdm_core.vc_param = &omap4_core_vc_data;
 125
 126         for (i = 0; voltdm = voltagedomains_omap4[i], voltdm; i++)
 127                 voltdm->sys_clk.name = sys_clk_name;
 128
 129         voltdm_init(voltagedomains_omap4);
 130 };