arch/arm/mach-omap2/voltagedomains3xxx_data.c

   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
  32 static struct voltagedomain omap3_voltdm_wkup = {
  33         .name = "wakeup",
  34 };
  35
  36 /* 34xx/36xx voltagedomain data */
  37
  38 static const struct omap_vfsm_instance omap3_vdd1_vfsm = {
  39         .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  40         .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
  41 };
  42
  43 static const struct omap_vfsm_instance omap3_vdd2_vfsm = {
  44         .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  45         .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK,
  46 };
  47
  48 static 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
  59 static 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
  70 static 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
  79 static struct voltagedomain am35xx_voltdm_mpu = {
  80         .name = "mpu_iva",
  81 };
  82
  83 static struct voltagedomain am35xx_voltdm_core = {
  84         .name = "core",
  85 };
  86
  87 static struct voltagedomain *voltagedomains_am35xx[] __initdata = {
  88         &am35xx_voltdm_mpu,
  89         &am35xx_voltdm_core,
  90         &omap3_voltdm_wkup,
  91         NULL,
  92 };
  93
  94
  95 static const char *const sys_clk_name __initconst = "sys_ck";
  96
  97 void __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 };