LXR linux/arch/arm/mach-omap2/powerdomains43xx

   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
  20static 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
  33static 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
  54static 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
  62static 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
  74static 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
  82static 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
  91static 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
 114static 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
 125static int am43xx_check_vcvp(void)
 126{
 127        return 0;
 128}
 129
 130void __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}
 137