arch/arm/mach-omap2/voltagedomains3xxx_data.c

   1 /*
   2  * OMAP3 voltage domain data
   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 modify
  14  * it under the terms of the GNU General Public License version 2 as
  15  * published by the Free Software Foundation.
  16  */
  17 #include <linux/kernel.h>
  18 #include <linux/err.h>
  19 #include <linux/init.h>
  20
  21 #include "soc.h"
  22 #include "common.h"
  23 #include "prm-regbits-34xx.h"
  24 #include "omap_opp_data.h"
  25 #include "voltage.h"
  26 #include "vc.h"
  27 #include "vp.h"
  28
  29 /*
  30  * VDD data
  31  */
  32
  33 /* OMAP3-common voltagedomain data */
  34
  35 static struct voltagedomain omap3_voltdm_wkup = {
  36         .name = "wakeup",
  37 };
  38
  39 /* 34xx/36xx voltagedomain data */
  40
  41 static const struct omap_vfsm_instance omap3_vdd1_vfsm = {
  42         .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  43         .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
  44 };
  45
  46 static const struct omap_vfsm_instance omap3_vdd2_vfsm = {
  47         .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  48         .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK,
  49 };
  50
  51 static struct voltagedomain omap3_voltdm_mpu = {
  52         .name = "mpu_iva",
  53         .scalable = true,
  54         .read = omap3_prm_vcvp_read,
  55         .write = omap3_prm_vcvp_write,
  56         .rmw = omap3_prm_vcvp_rmw,
  57         .vc = &omap3_vc_mpu,
  58         .vfsm = &omap3_vdd1_vfsm,
  59         .vp = &omap3_vp_mpu,
  60 };
  61
  62 static struct voltagedomain omap3_voltdm_core = {
  63         .name = "core",
  64         .scalable = true,
  65         .read = omap3_prm_vcvp_read,
  66         .write = omap3_prm_vcvp_write,
  67         .rmw = omap3_prm_vcvp_rmw,
  68         .vc = &omap3_vc_core,
  69         .vfsm = &omap3_vdd2_vfsm,
  70         .vp = &omap3_vp_core,
  71 };
  72
  73 static struct voltagedomain *voltagedomains_omap3[] __initdata = {
  74         &omap3_voltdm_mpu,
  75         &omap3_voltdm_core,
  76         &omap3_voltdm_wkup,
  77         NULL,
  78 };
  79
  80 /* AM35xx voltagedomain data */
  81
  82 static struct voltagedomain am35xx_voltdm_mpu = {
  83         .name = "mpu_iva",
  84 };
  85
  86 static struct voltagedomain am35xx_voltdm_core = {
  87         .name = "core",
  88 };
  89
  90 static struct voltagedomain *voltagedomains_am35xx[] __initdata = {
  91         &am35xx_voltdm_mpu,
  92         &am35xx_voltdm_core,
  93         &omap3_voltdm_wkup,
  94         NULL,
  95 };
  96
  97
  98 static const char *const sys_clk_name __initconst = "sys_ck";
  99
 100 void __init omap3xxx_voltagedomains_init(void)
 101 {
 102         struct voltagedomain *voltdm;
 103         struct voltagedomain **voltdms;
 104         int i;
 105
 106         /*
 107          * XXX Will depend on the process, validation, and binning
 108          * for the currently-running IC
 109          */
 110 #ifdef CONFIG_PM_OPP
 111         if (cpu_is_omap3630()) {
 112                 omap3_voltdm_mpu.volt_data = omap36xx_vddmpu_volt_data;
 113                 omap3_voltdm_core.volt_data = omap36xx_vddcore_volt_data;
 114         } else {
 115                 omap3_voltdm_mpu.volt_data = omap34xx_vddmpu_volt_data;
 116                 omap3_voltdm_core.volt_data = omap34xx_vddcore_volt_data;
 117         }
 118 #endif
 119
 120         omap3_voltdm_mpu.vp_param = &omap3_mpu_vp_data;
 121         omap3_voltdm_core.vp_param = &omap3_core_vp_data;
 122         omap3_voltdm_mpu.vc_param = &omap3_mpu_vc_data;
 123         omap3_voltdm_core.vc_param = &omap3_core_vc_data;
 124
 125         if (soc_is_am35xx())
 126                 voltdms = voltagedomains_am35xx;
 127         else
 128                 voltdms = voltagedomains_omap3;
 129
 130         for (i = 0; voltdm = voltdms[i], voltdm; i++)
 131                 voltdm->sys_clk.name = sys_clk_name;
 132
 133         voltdm_init(voltdms);
 134 };