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_data omap3_vdd1_vfsm_data = {
  35         .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  36         .voltsetup_shift = OMAP3430_SETUP_TIME1_SHIFT,
  37         .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
  38 };
  39
  40 static struct omap_vdd_info omap3_vdd1_info = {
  41         .vp_data = &omap3_vp1_data,
  42         .vc_data = &omap3_vc1_data,
  43         .vfsm = &omap3_vdd1_vfsm_data,
  44         .voltdm = {
  45                 .name = "mpu",
  46         },
  47 };
  48
  49 static const struct omap_vfsm_instance_data omap3_vdd2_vfsm_data = {
  50         .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  51         .voltsetup_shift = OMAP3430_SETUP_TIME2_SHIFT,
  52         .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK,
  53 };
  54
  55 static struct omap_vdd_info omap3_vdd2_info = {
  56         .vp_data = &omap3_vp2_data,
  57         .vc_data = &omap3_vc2_data,
  58         .vfsm = &omap3_vdd2_vfsm_data,
  59         .voltdm = {
  60                 .name = "core",
  61         },
  62 };
  63
  64 /* OMAP3 VDD structures */
  65 static struct omap_vdd_info *omap3_vdd_info[] = {
  66         &omap3_vdd1_info,
  67         &omap3_vdd2_info,
  68 };
  69
  70 /* OMAP3 specific voltage init functions */
  71 static int __init omap3xxx_voltage_early_init(void)
  72 {
  73         s16 prm_mod = OMAP3430_GR_MOD;
  74         s16 prm_irqst_ocp_mod = OCP_MOD;
  75
  76         if (!cpu_is_omap34xx())
  77                 return 0;
  78
  79         /*
  80          * XXX Will depend on the process, validation, and binning
  81          * for the currently-running IC
  82          */
  83         if (cpu_is_omap3630()) {
  84                 omap3_vdd1_info.volt_data = omap36xx_vddmpu_volt_data;
  85                 omap3_vdd2_info.volt_data = omap36xx_vddcore_volt_data;
  86         } else {
  87                 omap3_vdd1_info.volt_data = omap34xx_vddmpu_volt_data;
  88                 omap3_vdd2_info.volt_data = omap34xx_vddcore_volt_data;
  89         }
  90
  91         return omap_voltage_early_init(prm_mod, prm_irqst_ocp_mod,
  92                                        omap3_vdd_info,
  93                                        ARRAY_SIZE(omap3_vdd_info));
  94 };
  95 core_initcall(omap3xxx_voltage_early_init);