LXR linux/arch/arm/mach-omap2/voltagedomains44xx

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * OMAP3/OMAP4 Voltage Management Routines
   4 *
   5 * Author: Thara Gopinath       <thara@ti.com>
   6 *
   7 * Copyright (C) 2007 Texas Instruments, Inc.
   8 * Rajendra Nayak <rnayak@ti.com>
   9 * Lesly A M <x0080970@ti.com>
  10 *
  11 * Copyright (C) 2008 Nokia Corporation
  12 * Kalle Jokiniemi
  13 *
  14 * Copyright (C) 2010 Texas Instruments, Inc.
  15 * Thara Gopinath <thara@ti.com>
  16 */
  17#include <linux/kernel.h>
  18#include <linux/err.h>
  19#include <linux/init.h>
  20
  21#include "common.h"
  22#include "soc.h"
  23#include "prm-regbits-44xx.h"
  24#include "prm44xx.h"
  25#include "prcm44xx.h"
  26#include "prminst44xx.h"
  27#include "voltage.h"
  28#include "omap_opp_data.h"
  29#include "vc.h"
  30#include "vp.h"
  31
  32static const struct omap_vfsm_instance omap4_vdd_mpu_vfsm = {
  33        .voltsetup_reg = OMAP4_PRM_VOLTSETUP_MPU_RET_SLEEP_OFFSET,
  34        .voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_MPU_OFF_OFFSET,
  35};
  36
  37static const struct omap_vfsm_instance omap4_vdd_iva_vfsm = {
  38        .voltsetup_reg = OMAP4_PRM_VOLTSETUP_IVA_RET_SLEEP_OFFSET,
  39        .voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_IVA_OFF_OFFSET,
  40};
  41
  42static const struct omap_vfsm_instance omap4_vdd_core_vfsm = {
  43        .voltsetup_reg = OMAP4_PRM_VOLTSETUP_CORE_RET_SLEEP_OFFSET,
  44        .voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_CORE_OFF_OFFSET,
  45};
  46
  47static struct voltagedomain omap4_voltdm_mpu = {
  48        .name = "mpu",
  49        .scalable = true,
  50        .read = omap4_prm_vcvp_read,
  51        .write = omap4_prm_vcvp_write,
  52        .rmw = omap4_prm_vcvp_rmw,
  53        .vc = &omap4_vc_mpu,
  54        .vfsm = &omap4_vdd_mpu_vfsm,
  55        .vp = &omap4_vp_mpu,
  56};
  57
  58static struct voltagedomain omap4_voltdm_iva = {
  59        .name = "iva",
  60        .scalable = true,
  61        .read = omap4_prm_vcvp_read,
  62        .write = omap4_prm_vcvp_write,
  63        .rmw = omap4_prm_vcvp_rmw,
  64        .vc = &omap4_vc_iva,
  65        .vfsm = &omap4_vdd_iva_vfsm,
  66        .vp = &omap4_vp_iva,
  67};
  68
  69static struct voltagedomain omap4_voltdm_core = {
  70        .name = "core",
  71        .scalable = true,
  72        .read = omap4_prm_vcvp_read,
  73        .write = omap4_prm_vcvp_write,
  74        .rmw = omap4_prm_vcvp_rmw,
  75        .vc = &omap4_vc_core,
  76        .vfsm = &omap4_vdd_core_vfsm,
  77        .vp = &omap4_vp_core,
  78};
  79
  80static struct voltagedomain omap4_voltdm_wkup = {
  81        .name = "wakeup",
  82};
  83
  84static struct voltagedomain *voltagedomains_omap4[] __initdata = {
  85        &omap4_voltdm_mpu,
  86        &omap4_voltdm_iva,
  87        &omap4_voltdm_core,
  88        &omap4_voltdm_wkup,
  89        NULL,
  90};
  91
  92static const char *const sys_clk_name __initconst = "sys_clkin_ck";
  93
  94void __init omap44xx_voltagedomains_init(void)
  95{
  96        struct voltagedomain *voltdm;
  97        int i;
  98
  99        /*
 100         * XXX Will depend on the process, validation, and binning
 101         * for the currently-running IC
 102         */
 103#ifdef CONFIG_PM_OPP
 104        if (cpu_is_omap443x()) {
 105                omap4_voltdm_mpu.volt_data = omap443x_vdd_mpu_volt_data;
 106                omap4_voltdm_iva.volt_data = omap443x_vdd_iva_volt_data;
 107                omap4_voltdm_core.volt_data = omap443x_vdd_core_volt_data;
 108        } else if (cpu_is_omap446x()) {
 109                omap4_voltdm_mpu.volt_data = omap446x_vdd_mpu_volt_data;
 110                omap4_voltdm_iva.volt_data = omap446x_vdd_iva_volt_data;
 111                omap4_voltdm_core.volt_data = omap446x_vdd_core_volt_data;
 112        }
 113#endif
 114
 115        omap4_voltdm_mpu.vp_param = &omap4_mpu_vp_data;
 116        omap4_voltdm_iva.vp_param = &omap4_iva_vp_data;
 117        omap4_voltdm_core.vp_param = &omap4_core_vp_data;
 118
 119        omap4_voltdm_mpu.vc_param = &omap4_mpu_vc_data;
 120        omap4_voltdm_iva.vc_param = &omap4_iva_vc_data;
 121        omap4_voltdm_core.vc_param = &omap4_core_vc_data;
 122
 123        for (i = 0; voltdm = voltagedomains_omap4[i], voltdm; i++)
 124                voltdm->sys_clk.name = sys_clk_name;
 125
 126        voltdm_init(voltagedomains_omap4);
 127};
 128