LXR linux/arch/arm/mach-omap2/voltagedomains3xxx

   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
  35static struct voltagedomain omap3_voltdm_wkup = {
  36        .name = "wakeup",
  37};
  38
  39/* 34xx/36xx voltagedomain data */
  40
  41static const struct omap_vfsm_instance omap3_vdd1_vfsm = {
  42        .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  43        .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
  44};
  45
  46static const struct omap_vfsm_instance omap3_vdd2_vfsm = {
  47        .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  48        .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK,
  49};
  50
  51static 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
  62static 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
  73static 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
  82static struct voltagedomain am35xx_voltdm_mpu = {
  83        .name = "mpu_iva",
  84};
  85
  86static struct voltagedomain am35xx_voltdm_core = {
  87        .name = "core",
  88};
  89
  90static struct voltagedomain *voltagedomains_am35xx[] __initdata = {
  91        &am35xx_voltdm_mpu,
  92        &am35xx_voltdm_core,
  93        &omap3_voltdm_wkup,
  94        NULL,
  95};
  96
  97
  98static const char *const sys_clk_name __initconst = "sys_ck";
  99
 100void __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};
 135