Pileus Git - ~andy/linux/blob - 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 "common.h"
  22 #include <plat/cpu.h>
  23
  24 #include "prm-regbits-34xx.h"
  25 #include "omap_opp_data.h"
  26 #include "voltage.h"
  27 #include "vc.h"
  28 #include "vp.h"
  29
  30 /*
  31  * VDD data
  32  */
  33
  34 /* OMAP3-common voltagedomain data */
  35
  36 static struct voltagedomain omap3_voltdm_wkup = {
  37         .name = "wakeup",
  38 };
  39
  40 /* 34xx/36xx voltagedomain data */
  41
  42 static const struct omap_vfsm_instance omap3_vdd1_vfsm = {
  43         .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  44         .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
  45 };
  46
  47 static const struct omap_vfsm_instance omap3_vdd2_vfsm = {
  48         .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  49         .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK,
  50 };
  51
  52 static struct voltagedomain omap3_voltdm_mpu = {
  53         .name = "mpu_iva",
  54         .scalable = true,
  55         .read = omap3_prm_vcvp_read,
  56         .write = omap3_prm_vcvp_write,
  57         .rmw = omap3_prm_vcvp_rmw,
  58         .vc = &omap3_vc_mpu,
  59         .vfsm = &omap3_vdd1_vfsm,
  60         .vp = &omap3_vp_mpu,
  61 };
  62
  63 static struct voltagedomain omap3_voltdm_core = {
  64         .name = "core",
  65         .scalable = true,
  66         .read = omap3_prm_vcvp_read,
  67         .write = omap3_prm_vcvp_write,
  68         .rmw = omap3_prm_vcvp_rmw,
  69         .vc = &omap3_vc_core,
  70         .vfsm = &omap3_vdd2_vfsm,
  71         .vp = &omap3_vp_core,
  72 };
  73
  74 static struct voltagedomain *voltagedomains_omap3[] __initdata = {
  75         &omap3_voltdm_mpu,
  76         &omap3_voltdm_core,
  77         &omap3_voltdm_wkup,
  78         NULL,
  79 };
  80
  81 /* AM35xx voltagedomain data */
  82
  83 static struct voltagedomain am35xx_voltdm_mpu = {
  84         .name = "mpu_iva",
  85 };
  86
  87 static struct voltagedomain am35xx_voltdm_core = {
  88         .name = "core",
  89 };
  90
  91 static struct voltagedomain *voltagedomains_am35xx[] __initdata = {
  92         &am35xx_voltdm_mpu,
  93         &am35xx_voltdm_core,
  94         &omap3_voltdm_wkup,
  95         NULL,
  96 };
  97
  98
  99 static const char *sys_clk_name __initdata = "sys_ck";
 100
 101 void __init omap3xxx_voltagedomains_init(void)
 102 {
 103         struct voltagedomain *voltdm;
 104         struct voltagedomain **voltdms;
 105         int i;
 106
 107         /*
 108          * XXX Will depend on the process, validation, and binning
 109          * for the currently-running IC
 110          */
 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
 119         if (cpu_is_omap3517() || cpu_is_omap3505())
 120                 voltdms = voltagedomains_am35xx;
 121         else
 122                 voltdms = voltagedomains_omap3;
 123
 124         for (i = 0; voltdm = voltdms[i], voltdm; i++)
 125                 voltdm->sys_clk.name = sys_clk_name;
 126
 127         voltdm_init(voltdms);
 128 };