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

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * OMAP3 voltage domain data
   4 *
   5 * Copyright (C) 2007, 2010 Texas Instruments, Inc.
   6 * Rajendra Nayak <rnayak@ti.com>
   7 * Lesly A M <x0080970@ti.com>
   8 * Thara Gopinath <thara@ti.com>
   9 *
  10 * Copyright (C) 2008, 2011 Nokia Corporation
  11 * Kalle Jokiniemi
  12 * Paul Walmsley
  13 */
  14#include <linux/kernel.h>
  15#include <linux/err.h>
  16#include <linux/init.h>
  17
  18#include "soc.h"
  19#include "common.h"
  20#include "prm-regbits-34xx.h"
  21#include "omap_opp_data.h"
  22#include "voltage.h"
  23#include "vc.h"
  24#include "vp.h"
  25
  26/*
  27 * VDD data
  28 */
  29
  30/* OMAP3-common voltagedomain data */
  31
  32static struct voltagedomain omap3_voltdm_wkup = {
  33        .name = "wakeup",
  34};
  35
  36/* 34xx/36xx voltagedomain data */
  37
  38static const struct omap_vfsm_instance omap3_vdd1_vfsm = {
  39        .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  40        .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
  41};
  42
  43static const struct omap_vfsm_instance omap3_vdd2_vfsm = {
  44        .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  45        .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK,
  46};
  47
  48static struct voltagedomain omap3_voltdm_mpu = {
  49        .name = "mpu_iva",
  50        .scalable = true,
  51        .read = omap3_prm_vcvp_read,
  52        .write = omap3_prm_vcvp_write,
  53        .rmw = omap3_prm_vcvp_rmw,
  54        .vc = &omap3_vc_mpu,
  55        .vfsm = &omap3_vdd1_vfsm,
  56        .vp = &omap3_vp_mpu,
  57};
  58
  59static struct voltagedomain omap3_voltdm_core = {
  60        .name = "core",
  61        .scalable = true,
  62        .read = omap3_prm_vcvp_read,
  63        .write = omap3_prm_vcvp_write,
  64        .rmw = omap3_prm_vcvp_rmw,
  65        .vc = &omap3_vc_core,
  66        .vfsm = &omap3_vdd2_vfsm,
  67        .vp = &omap3_vp_core,
  68};
  69
  70static struct voltagedomain *voltagedomains_omap3[] __initdata = {
  71        &omap3_voltdm_mpu,
  72        &omap3_voltdm_core,
  73        &omap3_voltdm_wkup,
  74        NULL,
  75};
  76
  77/* AM35xx voltagedomain data */
  78
  79static struct voltagedomain am35xx_voltdm_mpu = {
  80        .name = "mpu_iva",
  81};
  82
  83static struct voltagedomain am35xx_voltdm_core = {
  84        .name = "core",
  85};
  86
  87static struct voltagedomain *voltagedomains_am35xx[] __initdata = {
  88        &am35xx_voltdm_mpu,
  89        &am35xx_voltdm_core,
  90        &omap3_voltdm_wkup,
  91        NULL,
  92};
  93
  94
  95static const char *const sys_clk_name __initconst = "sys_ck";
  96
  97void __init omap3xxx_voltagedomains_init(void)
  98{
  99        struct voltagedomain *voltdm;
 100        struct voltagedomain **voltdms;
 101        int i;
 102
 103        /*
 104         * XXX Will depend on the process, validation, and binning
 105         * for the currently-running IC
 106         */
 107#ifdef CONFIG_PM_OPP
 108        if (cpu_is_omap3630()) {
 109                omap3_voltdm_mpu.volt_data = omap36xx_vddmpu_volt_data;
 110                omap3_voltdm_core.volt_data = omap36xx_vddcore_volt_data;
 111        } else {
 112                omap3_voltdm_mpu.volt_data = omap34xx_vddmpu_volt_data;
 113                omap3_voltdm_core.volt_data = omap34xx_vddcore_volt_data;
 114        }
 115#endif
 116
 117        omap3_voltdm_mpu.vp_param = &omap3_mpu_vp_data;
 118        omap3_voltdm_core.vp_param = &omap3_core_vp_data;
 119        omap3_voltdm_mpu.vc_param = &omap3_mpu_vc_data;
 120        omap3_voltdm_core.vc_param = &omap3_core_vc_data;
 121
 122        if (soc_is_am35xx())
 123                voltdms = voltagedomains_am35xx;
 124        else
 125                voltdms = voltagedomains_omap3;
 126
 127        for (i = 0; voltdm = voltdms[i], voltdm; i++)
 128                voltdm->sys_clk.name = sys_clk_name;
 129
 130        voltdm_init(voltdms);
 131};
 132