arch/arm/mach-omap2/powerdomains43xx_data.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * AM43xx Power domains framework
   4  *
   5  * Copyright (C) 2013 Texas Instruments, Inc.
   6  */
   7
   8 #include <linux/kernel.h>
   9 #include <linux/init.h>
  10
  11 #include "powerdomain.h"
  12
  13 #include "prcm-common.h"
  14 #include "prcm44xx.h"
  15 #include "prcm43xx.h"
  16
  17 static struct powerdomain gfx_43xx_pwrdm = {
  18         .name             = "gfx_pwrdm",
  19         .voltdm           = { .name = "core" },
  20         .prcm_offs        = AM43XX_PRM_GFX_INST,
  21         .prcm_partition   = AM43XX_PRM_PARTITION,
  22         .pwrsts           = PWRSTS_OFF_ON,
  23         .banks            = 1,
  24         .pwrsts_mem_on  = {
  25                 [0] = PWRSTS_ON,        /* gfx_mem */
  26         },
  27         .flags            = PWRDM_HAS_LOWPOWERSTATECHANGE,
  28 };
  29
  30 static struct powerdomain mpu_43xx_pwrdm = {
  31         .name             = "mpu_pwrdm",
  32         .voltdm           = { .name = "mpu" },
  33         .prcm_offs        = AM43XX_PRM_MPU_INST,
  34         .prcm_partition   = AM43XX_PRM_PARTITION,
  35         .pwrsts           = PWRSTS_OFF_RET_ON,
  36         .pwrsts_logic_ret = PWRSTS_OFF_RET,
  37         .banks            = 3,
  38         .pwrsts_mem_ret = {
  39                 [0] = PWRSTS_OFF_RET,   /* mpu_l1 */
  40                 [1] = PWRSTS_OFF_RET,   /* mpu_l2 */
  41                 [2] = PWRSTS_OFF_RET,   /* mpu_ram */
  42         },
  43         .pwrsts_mem_on  = {
  44                 [0] = PWRSTS_ON,        /* mpu_l1 */
  45                 [1] = PWRSTS_ON,        /* mpu_l2 */
  46                 [2] = PWRSTS_ON,        /* mpu_ram */
  47         },
  48         .flags            = PWRDM_HAS_LOWPOWERSTATECHANGE,
  49 };
  50
  51 static struct powerdomain rtc_43xx_pwrdm = {
  52         .name             = "rtc_pwrdm",
  53         .voltdm           = { .name = "rtc" },
  54         .prcm_offs        = AM43XX_PRM_RTC_INST,
  55         .prcm_partition   = AM43XX_PRM_PARTITION,
  56         .pwrsts           = PWRSTS_ON,
  57 };
  58
  59 static struct powerdomain wkup_43xx_pwrdm = {
  60         .name             = "wkup_pwrdm",
  61         .voltdm           = { .name = "core" },
  62         .prcm_offs        = AM43XX_PRM_WKUP_INST,
  63         .prcm_partition   = AM43XX_PRM_PARTITION,
  64         .pwrsts           = PWRSTS_ON,
  65         .banks            = 1,
  66         .pwrsts_mem_on  = {
  67                 [0] = PWRSTS_ON,        /* debugss_mem */
  68         },
  69 };
  70
  71 static struct powerdomain tamper_43xx_pwrdm = {
  72         .name             = "tamper_pwrdm",
  73         .voltdm           = { .name = "tamper" },
  74         .prcm_offs        = AM43XX_PRM_TAMPER_INST,
  75         .prcm_partition   = AM43XX_PRM_PARTITION,
  76         .pwrsts           = PWRSTS_ON,
  77 };
  78
  79 static struct powerdomain cefuse_43xx_pwrdm = {
  80         .name             = "cefuse_pwrdm",
  81         .voltdm           = { .name = "core" },
  82         .prcm_offs        = AM43XX_PRM_CEFUSE_INST,
  83         .prcm_partition   = AM43XX_PRM_PARTITION,
  84         .pwrsts           = PWRSTS_OFF_ON,
  85         .flags            = PWRDM_HAS_LOWPOWERSTATECHANGE,
  86 };
  87
  88 static struct powerdomain per_43xx_pwrdm = {
  89         .name             = "per_pwrdm",
  90         .voltdm           = { .name = "core" },
  91         .prcm_offs        = AM43XX_PRM_PER_INST,
  92         .prcm_partition   = AM43XX_PRM_PARTITION,
  93         .pwrsts           = PWRSTS_OFF_RET_ON,
  94         .pwrsts_logic_ret = PWRSTS_OFF_RET,
  95         .banks            = 4,
  96         .pwrsts_mem_ret = {
  97                 [0] = PWRSTS_OFF_RET,   /* icss_mem */
  98                 [1] = PWRSTS_OFF_RET,   /* per_mem */
  99                 [2] = PWRSTS_OFF_RET,   /* ram1_mem */
 100                 [3] = PWRSTS_OFF_RET,   /* ram2_mem */
 101         },
 102         .pwrsts_mem_on  = {
 103                 [0] = PWRSTS_ON,        /* icss_mem */
 104                 [1] = PWRSTS_ON,        /* per_mem */
 105                 [2] = PWRSTS_ON,        /* ram1_mem */
 106                 [3] = PWRSTS_ON,        /* ram2_mem */
 107         },
 108         .flags            = PWRDM_HAS_LOWPOWERSTATECHANGE,
 109 };
 110
 111 static struct powerdomain *powerdomains_am43xx[] __initdata = {
 112         &gfx_43xx_pwrdm,
 113         &mpu_43xx_pwrdm,
 114         &rtc_43xx_pwrdm,
 115         &wkup_43xx_pwrdm,
 116         &tamper_43xx_pwrdm,
 117         &cefuse_43xx_pwrdm,
 118         &per_43xx_pwrdm,
 119         NULL
 120 };
 121
 122 static int am43xx_check_vcvp(void)
 123 {
 124         return 0;
 125 }
 126
 127 void __init am43xx_powerdomains_init(void)
 128 {
 129         omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
 130         pwrdm_register_platform_funcs(&omap4_pwrdm_operations);
 131         pwrdm_register_pwrdms(powerdomains_am43xx);
 132         pwrdm_complete_init();
 133 }