arch/arm/mach-omap2/powerdomains3xxx_data.c

   1 /*
   2  * OMAP3 powerdomain definitions
   3  *
   4  * Copyright (C) 2007-2008 Texas Instruments, Inc.
   5  * Copyright (C) 2007-2011 Nokia Corporation
   6  *
   7  * Paul Walmsley, Jouni Högander
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16
  17 #include "powerdomain.h"
  18 #include "powerdomains2xxx_3xxx_data.h"
  19
  20 #include "prcm-common.h"
  21 #include "prm2xxx_3xxx.h"
  22 #include "prm-regbits-34xx.h"
  23 #include "cm2xxx_3xxx.h"
  24 #include "cm-regbits-34xx.h"
  25
  26 /*
  27  * 34XX-specific powerdomains, dependencies
  28  */
  29
  30 #ifdef CONFIG_ARCH_OMAP3
  31
  32 /*
  33  * Powerdomains
  34  */
  35
  36 static struct powerdomain iva2_pwrdm = {
  37         .name             = "iva2_pwrdm",
  38         .prcm_offs        = OMAP3430_IVA2_MOD,
  39         .omap_chip        = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
  40         .pwrsts           = PWRSTS_OFF_RET_ON,
  41         .pwrsts_logic_ret = PWRSTS_OFF_RET,
  42         .banks            = 4,
  43         .pwrsts_mem_ret   = {
  44                 [0] = PWRSTS_OFF_RET,
  45                 [1] = PWRSTS_OFF_RET,
  46                 [2] = PWRSTS_OFF_RET,
  47                 [3] = PWRSTS_OFF_RET,
  48         },
  49         .pwrsts_mem_on    = {
  50                 [0] = PWRSTS_ON,
  51                 [1] = PWRSTS_ON,
  52                 [2] = PWRSTS_OFF_ON,
  53                 [3] = PWRSTS_ON,
  54         },
  55 };
  56
  57 static struct powerdomain mpu_3xxx_pwrdm = {
  58         .name             = "mpu_pwrdm",
  59         .prcm_offs        = MPU_MOD,
  60         .omap_chip        = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
  61         .pwrsts           = PWRSTS_OFF_RET_ON,
  62         .pwrsts_logic_ret = PWRSTS_OFF_RET,
  63         .flags            = PWRDM_HAS_MPU_QUIRK,
  64         .banks            = 1,
  65         .pwrsts_mem_ret   = {
  66                 [0] = PWRSTS_OFF_RET,
  67         },
  68         .pwrsts_mem_on    = {
  69                 [0] = PWRSTS_OFF_ON,
  70         },
  71 };
  72
  73 /*
  74  * The USBTLL Save-and-Restore mechanism is broken on
  75  * 3430s up to ES3.0 and 3630ES1.0. Hence this feature
  76  * needs to be disabled on these chips.
  77  * Refer: 3430 errata ID i459 and 3630 errata ID i579
  78  *
  79  * Note: setting the SAR flag could help for errata ID i478
  80  *  which applies to 3430 <= ES3.1, but since the SAR feature
  81  *  is broken, do not use it.
  82  */
  83 static struct powerdomain core_3xxx_pre_es3_1_pwrdm = {
  84         .name             = "core_pwrdm",
  85         .prcm_offs        = CORE_MOD,
  86         .omap_chip        = OMAP_CHIP_INIT(CHIP_IS_OMAP3430ES1 |
  87                                            CHIP_IS_OMAP3430ES2 |
  88                                            CHIP_IS_OMAP3430ES3_0 |
  89                                            CHIP_IS_OMAP3630ES1),
  90         .pwrsts           = PWRSTS_OFF_RET_ON,
  91         .pwrsts_logic_ret = PWRSTS_OFF_RET,
  92         .banks            = 2,
  93         .pwrsts_mem_ret   = {
  94                 [0] = PWRSTS_OFF_RET,    /* MEM1RETSTATE */
  95                 [1] = PWRSTS_OFF_RET,    /* MEM2RETSTATE */
  96         },
  97         .pwrsts_mem_on    = {
  98                 [0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
  99                 [1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
 100         },
 101 };
 102
 103 static struct powerdomain core_3xxx_es3_1_pwrdm = {
 104         .name             = "core_pwrdm",
 105         .prcm_offs        = CORE_MOD,
 106         .omap_chip        = OMAP_CHIP_INIT(CHIP_IS_OMAP3430ES3_1 |
 107                                           CHIP_GE_OMAP3630ES1_1),
 108         .pwrsts           = PWRSTS_OFF_RET_ON,
 109         .pwrsts_logic_ret = PWRSTS_OFF_RET,
 110         /*
 111          * Setting the SAR flag for errata ID i478 which applies
 112          *  to 3430 <= ES3.1
 113          */
 114         .flags            = PWRDM_HAS_HDWR_SAR, /* for USBTLL only */
 115         .banks            = 2,
 116         .pwrsts_mem_ret   = {
 117                 [0] = PWRSTS_OFF_RET,    /* MEM1RETSTATE */
 118                 [1] = PWRSTS_OFF_RET,    /* MEM2RETSTATE */
 119         },
 120         .pwrsts_mem_on    = {
 121                 [0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
 122                 [1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
 123         },
 124 };
 125
 126 static struct powerdomain dss_pwrdm = {
 127         .name             = "dss_pwrdm",
 128         .omap_chip        = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 129         .prcm_offs        = OMAP3430_DSS_MOD,
 130         .pwrsts           = PWRSTS_OFF_RET_ON,
 131         .pwrsts_logic_ret = PWRSTS_RET,
 132         .banks            = 1,
 133         .pwrsts_mem_ret   = {
 134                 [0] = PWRSTS_RET, /* MEMRETSTATE */
 135         },
 136         .pwrsts_mem_on    = {
 137                 [0] = PWRSTS_ON,  /* MEMONSTATE */
 138         },
 139 };
 140
 141 /*
 142  * Although the 34XX TRM Rev K Table 4-371 notes that retention is a
 143  * possible SGX powerstate, the SGX device itself does not support
 144  * retention.
 145  */
 146 static struct powerdomain sgx_pwrdm = {
 147         .name             = "sgx_pwrdm",
 148         .prcm_offs        = OMAP3430ES2_SGX_MOD,
 149         .omap_chip        = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
 150         /* XXX This is accurate for 3430 SGX, but what about GFX? */
 151         .pwrsts           = PWRSTS_OFF_ON,
 152         .pwrsts_logic_ret = PWRSTS_RET,
 153         .banks            = 1,
 154         .pwrsts_mem_ret   = {
 155                 [0] = PWRSTS_RET, /* MEMRETSTATE */
 156         },
 157         .pwrsts_mem_on    = {
 158                 [0] = PWRSTS_ON,  /* MEMONSTATE */
 159         },
 160 };
 161
 162 static struct powerdomain cam_pwrdm = {
 163         .name             = "cam_pwrdm",
 164         .omap_chip        = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 165         .prcm_offs        = OMAP3430_CAM_MOD,
 166         .pwrsts           = PWRSTS_OFF_RET_ON,
 167         .pwrsts_logic_ret = PWRSTS_RET,
 168         .banks            = 1,
 169         .pwrsts_mem_ret   = {
 170                 [0] = PWRSTS_RET, /* MEMRETSTATE */
 171         },
 172         .pwrsts_mem_on    = {
 173                 [0] = PWRSTS_ON,  /* MEMONSTATE */
 174         },
 175 };
 176
 177 static struct powerdomain per_pwrdm = {
 178         .name             = "per_pwrdm",
 179         .prcm_offs        = OMAP3430_PER_MOD,
 180         .omap_chip        = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 181         .pwrsts           = PWRSTS_OFF_RET_ON,
 182         .pwrsts_logic_ret = PWRSTS_OFF_RET,
 183         .banks            = 1,
 184         .pwrsts_mem_ret   = {
 185                 [0] = PWRSTS_RET, /* MEMRETSTATE */
 186         },
 187         .pwrsts_mem_on    = {
 188                 [0] = PWRSTS_ON,  /* MEMONSTATE */
 189         },
 190 };
 191
 192 static struct powerdomain emu_pwrdm = {
 193         .name           = "emu_pwrdm",
 194         .prcm_offs      = OMAP3430_EMU_MOD,
 195         .omap_chip      = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 196 };
 197
 198 static struct powerdomain neon_pwrdm = {
 199         .name             = "neon_pwrdm",
 200         .prcm_offs        = OMAP3430_NEON_MOD,
 201         .omap_chip        = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 202         .pwrsts           = PWRSTS_OFF_RET_ON,
 203         .pwrsts_logic_ret = PWRSTS_RET,
 204 };
 205
 206 static struct powerdomain usbhost_pwrdm = {
 207         .name             = "usbhost_pwrdm",
 208         .prcm_offs        = OMAP3430ES2_USBHOST_MOD,
 209         .omap_chip        = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
 210         .pwrsts           = PWRSTS_OFF_RET_ON,
 211         .pwrsts_logic_ret = PWRSTS_RET,
 212         /*
 213          * REVISIT: Enabling usb host save and restore mechanism seems to
 214          * leave the usb host domain permanently in ACTIVE mode after
 215          * changing the usb host power domain state from OFF to active once.
 216          * Disabling for now.
 217          */
 218         /*.flags          = PWRDM_HAS_HDWR_SAR,*/ /* for USBHOST ctrlr only */
 219         .banks            = 1,
 220         .pwrsts_mem_ret   = {
 221                 [0] = PWRSTS_RET, /* MEMRETSTATE */
 222         },
 223         .pwrsts_mem_on    = {
 224                 [0] = PWRSTS_ON,  /* MEMONSTATE */
 225         },
 226 };
 227
 228 static struct powerdomain dpll1_pwrdm = {
 229         .name           = "dpll1_pwrdm",
 230         .prcm_offs      = MPU_MOD,
 231         .omap_chip      = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 232 };
 233
 234 static struct powerdomain dpll2_pwrdm = {
 235         .name           = "dpll2_pwrdm",
 236         .prcm_offs      = OMAP3430_IVA2_MOD,
 237         .omap_chip      = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 238 };
 239
 240 static struct powerdomain dpll3_pwrdm = {
 241         .name           = "dpll3_pwrdm",
 242         .prcm_offs      = PLL_MOD,
 243         .omap_chip      = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 244 };
 245
 246 static struct powerdomain dpll4_pwrdm = {
 247         .name           = "dpll4_pwrdm",
 248         .prcm_offs      = PLL_MOD,
 249         .omap_chip      = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 250 };
 251
 252 static struct powerdomain dpll5_pwrdm = {
 253         .name           = "dpll5_pwrdm",
 254         .prcm_offs      = PLL_MOD,
 255         .omap_chip      = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
 256 };
 257
 258 /* As powerdomains are added or removed above, this list must also be changed */
 259 static struct powerdomain *powerdomains_omap3xxx[] __initdata = {
 260
 261         &wkup_omap2_pwrdm,
 262         &gfx_omap2_pwrdm,
 263         &iva2_pwrdm,
 264         &mpu_3xxx_pwrdm,
 265         &neon_pwrdm,
 266         &core_3xxx_pre_es3_1_pwrdm,
 267         &core_3xxx_es3_1_pwrdm,
 268         &cam_pwrdm,
 269         &dss_pwrdm,
 270         &per_pwrdm,
 271         &emu_pwrdm,
 272         &sgx_pwrdm,
 273         &usbhost_pwrdm,
 274         &dpll1_pwrdm,
 275         &dpll2_pwrdm,
 276         &dpll3_pwrdm,
 277         &dpll4_pwrdm,
 278         &dpll5_pwrdm,
 279 #endif
 280         NULL
 281 };
 282
 283
 284 void __init omap3xxx_powerdomains_init(void)
 285 {
 286         pwrdm_init(powerdomains_omap3xxx, &omap3_pwrdm_operations);
 287 }