arch/arm/mach-omap2/powerdomains43xx_data.c

   1 /*
   2  * AM43xx Power domains framework
   3  *
   4  * Copyright (C) 2013 Texas Instruments, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13
  14 #include "powerdomain.h"
  15
  16 #include "prcm-common.h"
  17 #include "prcm44xx.h"
  18 #include "prcm43xx.h"
  19
  20 static struct powerdomain gfx_43xx_pwrdm = {
  21         .name             = "gfx_pwrdm",
  22         .voltdm           = { .name = "core" },
  23         .prcm_offs        = AM43XX_PRM_GFX_INST,
  24         .prcm_partition   = AM43XX_PRM_PARTITION,
  25         .pwrsts           = PWRSTS_OFF_ON,
  26         .banks            = 1,
  27         .pwrsts_mem_on  = {
  28                 [0] = PWRSTS_ON,        /* gfx_mem */
  29         },
  30         .flags            = PWRDM_HAS_LOWPOWERSTATECHANGE,
  31 };
  32
  33 static struct powerdomain mpu_43xx_pwrdm = {
  34         .name             = "mpu_pwrdm",
  35         .voltdm           = { .name = "mpu" },
  36         .prcm_offs        = AM43XX_PRM_MPU_INST,
  37         .prcm_partition   = AM43XX_PRM_PARTITION,
  38         .pwrsts           = PWRSTS_OFF_RET_ON,
  39         .pwrsts_logic_ret = PWRSTS_OFF_RET,
  40         .banks            = 3,
  41         .pwrsts_mem_ret = {
  42                 [0] = PWRSTS_OFF_RET,   /* mpu_l1 */
  43                 [1] = PWRSTS_OFF_RET,   /* mpu_l2 */
  44                 [2] = PWRSTS_OFF_RET,   /* mpu_ram */
  45         },
  46         .pwrsts_mem_on  = {
  47                 [0] = PWRSTS_ON,        /* mpu_l1 */
  48                 [1] = PWRSTS_ON,        /* mpu_l2 */
  49                 [2] = PWRSTS_ON,        /* mpu_ram */
  50         },
  51         .flags            = PWRDM_HAS_LOWPOWERSTATECHANGE,
  52 };
  53
  54 static struct powerdomain rtc_43xx_pwrdm = {
  55         .name             = "rtc_pwrdm",
  56         .voltdm           = { .name = "rtc" },
  57         .prcm_offs        = AM43XX_PRM_RTC_INST,
  58         .prcm_partition   = AM43XX_PRM_PARTITION,
  59         .pwrsts           = PWRSTS_ON,
  60 };
  61
  62 static struct powerdomain wkup_43xx_pwrdm = {
  63         .name             = "wkup_pwrdm",
  64         .voltdm           = { .name = "core" },
  65         .prcm_offs        = AM43XX_PRM_WKUP_INST,
  66         .prcm_partition   = AM43XX_PRM_PARTITION,
  67         .pwrsts           = PWRSTS_ON,
  68         .banks            = 1,
  69         .pwrsts_mem_on  = {
  70                 [0] = PWRSTS_ON,        /* debugss_mem */
  71         },
  72 };
  73
  74 static struct powerdomain tamper_43xx_pwrdm = {
  75         .name             = "tamper_pwrdm",
  76         .voltdm           = { .name = "tamper" },
  77         .prcm_offs        = AM43XX_PRM_TAMPER_INST,
  78         .prcm_partition   = AM43XX_PRM_PARTITION,
  79         .pwrsts           = PWRSTS_ON,
  80 };
  81
  82 static struct powerdomain cefuse_43xx_pwrdm = {
  83         .name             = "cefuse_pwrdm",
  84         .voltdm           = { .name = "core" },
  85         .prcm_offs        = AM43XX_PRM_CEFUSE_INST,
  86         .prcm_partition   = AM43XX_PRM_PARTITION,
  87         .pwrsts           = PWRSTS_OFF_ON,
  88         .flags            = PWRDM_HAS_LOWPOWERSTATECHANGE,
  89 };
  90
  91 static struct powerdomain per_43xx_pwrdm = {
  92         .name             = "per_pwrdm",
  93         .voltdm           = { .name = "core" },
  94         .prcm_offs        = AM43XX_PRM_PER_INST,
  95         .prcm_partition   = AM43XX_PRM_PARTITION,
  96         .pwrsts           = PWRSTS_OFF_RET_ON,
  97         .pwrsts_logic_ret = PWRSTS_OFF_RET,
  98         .banks            = 4,
  99         .pwrsts_mem_ret = {
 100                 [0] = PWRSTS_OFF_RET,   /* icss_mem */
 101                 [1] = PWRSTS_OFF_RET,   /* per_mem */
 102                 [2] = PWRSTS_OFF_RET,   /* ram1_mem */
 103                 [3] = PWRSTS_OFF_RET,   /* ram2_mem */
 104         },
 105         .pwrsts_mem_on  = {
 106                 [0] = PWRSTS_ON,        /* icss_mem */
 107                 [1] = PWRSTS_ON,        /* per_mem */
 108                 [2] = PWRSTS_ON,        /* ram1_mem */
 109                 [3] = PWRSTS_ON,        /* ram2_mem */
 110         },
 111         .flags            = PWRDM_HAS_LOWPOWERSTATECHANGE,
 112 };
 113
 114 static struct powerdomain *powerdomains_am43xx[] __initdata = {
 115         &gfx_43xx_pwrdm,
 116         &mpu_43xx_pwrdm,
 117         &rtc_43xx_pwrdm,
 118         &wkup_43xx_pwrdm,
 119         &tamper_43xx_pwrdm,
 120         &cefuse_43xx_pwrdm,
 121         &per_43xx_pwrdm,
 122         NULL
 123 };
 124
 125 static int am43xx_check_vcvp(void)
 126 {
 127         return 0;
 128 }
 129
 130 void __init am43xx_powerdomains_init(void)
 131 {
 132         omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
 133         pwrdm_register_platform_funcs(&omap4_pwrdm_operations);
 134         pwrdm_register_pwrdms(powerdomains_am43xx);
 135         pwrdm_complete_init();
 136 }