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 <plat/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 static const struct omap_vfsm_instance omap3_vdd1_vfsm = {
  35         .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  36         .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
  37 };
  38
  39 static const struct omap_vfsm_instance omap3_vdd2_vfsm = {
  40         .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  41         .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK,
  42 };
  43
  44 static struct voltagedomain omap3_voltdm_mpu = {
  45         .name = "mpu_iva",
  46         .scalable = true,
  47         .read = omap3_prm_vcvp_read,
  48         .write = omap3_prm_vcvp_write,
  49         .rmw = omap3_prm_vcvp_rmw,
  50         .vc = &omap3_vc_mpu,
  51         .vfsm = &omap3_vdd1_vfsm,
  52         .vp = &omap3_vp_mpu,
  53 };
  54
  55 static struct voltagedomain omap3_voltdm_core = {
  56         .name = "core",
  57         .scalable = true,
  58         .read = omap3_prm_vcvp_read,
  59         .write = omap3_prm_vcvp_write,
  60         .rmw = omap3_prm_vcvp_rmw,
  61         .vc = &omap3_vc_core,
  62         .vfsm = &omap3_vdd2_vfsm,
  63         .vp = &omap3_vp_core,
  64 };
  65
  66 static struct voltagedomain omap3_voltdm_wkup = {
  67         .name = "wakeup",
  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 static const char *sys_clk_name __initdata = "sys_ck";
  78
  79 void __init omap3xxx_voltagedomains_init(void)
  80 {
  81         struct voltagedomain *voltdm;
  82         int i;
  83
  84         /*
  85          * XXX Will depend on the process, validation, and binning
  86          * for the currently-running IC
  87          */
  88         if (cpu_is_omap3630()) {
  89                 omap3_voltdm_mpu.volt_data = omap36xx_vddmpu_volt_data;
  90                 omap3_voltdm_core.volt_data = omap36xx_vddcore_volt_data;
  91         } else {
  92                 omap3_voltdm_mpu.volt_data = omap34xx_vddmpu_volt_data;
  93                 omap3_voltdm_core.volt_data = omap34xx_vddcore_volt_data;
  94         }
  95
  96         for (i = 0; voltdm = voltagedomains_omap3[i], voltdm; i++)
  97                 voltdm->sys_clk.name = sys_clk_name;
  98
  99         voltdm_init(voltagedomains_omap3);
 100 };