arch/arm/mach-omap2/powerdomains3xxx_data.c

   1 /*
   2  * OMAP3 powerdomain definitions
   3  *
   4  * Copyright (C) 2007-2008, 2011 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 <plat/cpu.h>
  18
  19 #include "powerdomain.h"
  20 #include "powerdomains2xxx_3xxx_data.h"
  21
  22 #include "prcm-common.h"
  23 #include "prm2xxx_3xxx.h"
  24 #include "prm-regbits-34xx.h"
  25 #include "cm2xxx_3xxx.h"
  26 #include "cm-regbits-34xx.h"
  27
  28 /*
  29  * 34XX-specific powerdomains, dependencies
  30  */
  31
  32 /*
  33  * Powerdomains
  34  */
  35
  36 static struct powerdomain iva2_pwrdm = {
  37         .name             = "iva2_pwrdm",
  38         .prcm_offs        = OMAP3430_IVA2_MOD,
  39         .pwrsts           = PWRSTS_OFF_RET_ON,
  40         .pwrsts_logic_ret = PWRSTS_OFF_RET,
  41         .banks            = 4,
  42         .pwrsts_mem_ret   = {
  43                 [0] = PWRSTS_OFF_RET,
  44                 [1] = PWRSTS_OFF_RET,
  45                 [2] = PWRSTS_OFF_RET,
  46                 [3] = PWRSTS_OFF_RET,
  47         },
  48         .pwrsts_mem_on    = {
  49                 [0] = PWRSTS_ON,
  50                 [1] = PWRSTS_ON,
  51                 [2] = PWRSTS_OFF_ON,
  52                 [3] = PWRSTS_ON,
  53         },
  54         .voltdm           = { .name = "mpu_iva" },
  55 };
  56
  57 static struct powerdomain mpu_3xxx_pwrdm = {
  58         .name             = "mpu_pwrdm",
  59         .prcm_offs        = MPU_MOD,
  60         .pwrsts           = PWRSTS_OFF_RET_ON,
  61         .pwrsts_logic_ret = PWRSTS_OFF_RET,
  62         .flags            = PWRDM_HAS_MPU_QUIRK,
  63         .banks            = 1,
  64         .pwrsts_mem_ret   = {
  65                 [0] = PWRSTS_OFF_RET,
  66         },
  67         .pwrsts_mem_on    = {
  68                 [0] = PWRSTS_OFF_ON,
  69         },
  70         .voltdm           = { .name = "mpu_iva" },
  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         .pwrsts           = PWRSTS_OFF_RET_ON,
  87         .pwrsts_logic_ret = PWRSTS_OFF_RET,
  88         .banks            = 2,
  89         .pwrsts_mem_ret   = {
  90                 [0] = PWRSTS_OFF_RET,    /* MEM1RETSTATE */
  91                 [1] = PWRSTS_OFF_RET,    /* MEM2RETSTATE */
  92         },
  93         .pwrsts_mem_on    = {
  94                 [0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
  95                 [1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
  96         },
  97         .voltdm           = { .name = "core" },
  98 };
  99
 100 static struct powerdomain core_3xxx_es3_1_pwrdm = {
 101         .name             = "core_pwrdm",
 102         .prcm_offs        = CORE_MOD,
 103         .pwrsts           = PWRSTS_OFF_RET_ON,
 104         .pwrsts_logic_ret = PWRSTS_OFF_RET,
 105         /*
 106          * Setting the SAR flag for errata ID i478 which applies
 107          *  to 3430 <= ES3.1
 108          */
 109         .flags            = PWRDM_HAS_HDWR_SAR, /* for USBTLL only */
 110         .banks            = 2,
 111         .pwrsts_mem_ret   = {
 112                 [0] = PWRSTS_OFF_RET,    /* MEM1RETSTATE */
 113                 [1] = PWRSTS_OFF_RET,    /* MEM2RETSTATE */
 114         },
 115         .pwrsts_mem_on    = {
 116                 [0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
 117                 [1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
 118         },
 119         .voltdm           = { .name = "core" },
 120 };
 121
 122 static struct powerdomain dss_pwrdm = {
 123         .name             = "dss_pwrdm",
 124         .prcm_offs        = OMAP3430_DSS_MOD,
 125         .pwrsts           = PWRSTS_OFF_RET_ON,
 126         .pwrsts_logic_ret = PWRSTS_RET,
 127         .banks            = 1,
 128         .pwrsts_mem_ret   = {
 129                 [0] = PWRSTS_RET, /* MEMRETSTATE */
 130         },
 131         .pwrsts_mem_on    = {
 132                 [0] = PWRSTS_ON,  /* MEMONSTATE */
 133         },
 134         .voltdm           = { .name = "core" },
 135 };
 136
 137 /*
 138  * Although the 34XX TRM Rev K Table 4-371 notes that retention is a
 139  * possible SGX powerstate, the SGX device itself does not support
 140  * retention.
 141  */
 142 static struct powerdomain sgx_pwrdm = {
 143         .name             = "sgx_pwrdm",
 144         .prcm_offs        = OMAP3430ES2_SGX_MOD,
 145         /* XXX This is accurate for 3430 SGX, but what about GFX? */
 146         .pwrsts           = PWRSTS_OFF_ON,
 147         .pwrsts_logic_ret = PWRSTS_RET,
 148         .banks            = 1,
 149         .pwrsts_mem_ret   = {
 150                 [0] = PWRSTS_RET, /* MEMRETSTATE */
 151         },
 152         .pwrsts_mem_on    = {
 153                 [0] = PWRSTS_ON,  /* MEMONSTATE */
 154         },
 155         .voltdm           = { .name = "core" },
 156 };
 157
 158 static struct powerdomain cam_pwrdm = {
 159         .name             = "cam_pwrdm",
 160         .prcm_offs        = OMAP3430_CAM_MOD,
 161         .pwrsts           = PWRSTS_OFF_RET_ON,
 162         .pwrsts_logic_ret = PWRSTS_RET,
 163         .banks            = 1,
 164         .pwrsts_mem_ret   = {
 165                 [0] = PWRSTS_RET, /* MEMRETSTATE */
 166         },
 167         .pwrsts_mem_on    = {
 168                 [0] = PWRSTS_ON,  /* MEMONSTATE */
 169         },
 170         .voltdm           = { .name = "core" },
 171 };
 172
 173 static struct powerdomain per_pwrdm = {
 174         .name             = "per_pwrdm",
 175         .prcm_offs        = OMAP3430_PER_MOD,
 176         .pwrsts           = PWRSTS_OFF_RET_ON,
 177         .pwrsts_logic_ret = PWRSTS_OFF_RET,
 178         .banks            = 1,
 179         .pwrsts_mem_ret   = {
 180                 [0] = PWRSTS_RET, /* MEMRETSTATE */
 181         },
 182         .pwrsts_mem_on    = {
 183                 [0] = PWRSTS_ON,  /* MEMONSTATE */
 184         },
 185         .voltdm           = { .name = "core" },
 186 };
 187
 188 static struct powerdomain emu_pwrdm = {
 189         .name           = "emu_pwrdm",
 190         .prcm_offs      = OMAP3430_EMU_MOD,
 191         .voltdm           = { .name = "core" },
 192 };
 193
 194 static struct powerdomain neon_pwrdm = {
 195         .name             = "neon_pwrdm",
 196         .prcm_offs        = OMAP3430_NEON_MOD,
 197         .pwrsts           = PWRSTS_OFF_RET_ON,
 198         .pwrsts_logic_ret = PWRSTS_RET,
 199         .voltdm           = { .name = "mpu_iva" },
 200 };
 201
 202 static struct powerdomain usbhost_pwrdm = {
 203         .name             = "usbhost_pwrdm",
 204         .prcm_offs        = OMAP3430ES2_USBHOST_MOD,
 205         .pwrsts           = PWRSTS_OFF_RET_ON,
 206         .pwrsts_logic_ret = PWRSTS_RET,
 207         /*
 208          * REVISIT: Enabling usb host save and restore mechanism seems to
 209          * leave the usb host domain permanently in ACTIVE mode after
 210          * changing the usb host power domain state from OFF to active once.
 211          * Disabling for now.
 212          */
 213         /*.flags          = PWRDM_HAS_HDWR_SAR,*/ /* for USBHOST ctrlr only */
 214         .banks            = 1,
 215         .pwrsts_mem_ret   = {
 216                 [0] = PWRSTS_RET, /* MEMRETSTATE */
 217         },
 218         .pwrsts_mem_on    = {
 219                 [0] = PWRSTS_ON,  /* MEMONSTATE */
 220         },
 221         .voltdm           = { .name = "core" },
 222 };
 223
 224 static struct powerdomain dpll1_pwrdm = {
 225         .name           = "dpll1_pwrdm",
 226         .prcm_offs      = MPU_MOD,
 227         .voltdm           = { .name = "mpu_iva" },
 228 };
 229
 230 static struct powerdomain dpll2_pwrdm = {
 231         .name           = "dpll2_pwrdm",
 232         .prcm_offs      = OMAP3430_IVA2_MOD,
 233         .voltdm           = { .name = "mpu_iva" },
 234 };
 235
 236 static struct powerdomain dpll3_pwrdm = {
 237         .name           = "dpll3_pwrdm",
 238         .prcm_offs      = PLL_MOD,
 239         .voltdm           = { .name = "core" },
 240 };
 241
 242 static struct powerdomain dpll4_pwrdm = {
 243         .name           = "dpll4_pwrdm",
 244         .prcm_offs      = PLL_MOD,
 245         .voltdm           = { .name = "core" },
 246 };
 247
 248 static struct powerdomain dpll5_pwrdm = {
 249         .name           = "dpll5_pwrdm",
 250         .prcm_offs      = PLL_MOD,
 251         .voltdm           = { .name = "core" },
 252 };
 253
 254 /* As powerdomains are added or removed above, this list must also be changed */
 255 static struct powerdomain *powerdomains_omap3430_common[] __initdata = {
 256         &wkup_omap2_pwrdm,
 257         &iva2_pwrdm,
 258         &mpu_3xxx_pwrdm,
 259         &neon_pwrdm,
 260         &cam_pwrdm,
 261         &dss_pwrdm,
 262         &per_pwrdm,
 263         &emu_pwrdm,
 264         &dpll1_pwrdm,
 265         &dpll2_pwrdm,
 266         &dpll3_pwrdm,
 267         &dpll4_pwrdm,
 268         NULL
 269 };
 270
 271 static struct powerdomain *powerdomains_omap3430es1[] __initdata = {
 272         &gfx_omap2_pwrdm,
 273         &core_3xxx_pre_es3_1_pwrdm,
 274         NULL
 275 };
 276
 277 /* also includes 3630ES1.0 */
 278 static struct powerdomain *powerdomains_omap3430es2_es3_0[] __initdata = {
 279         &core_3xxx_pre_es3_1_pwrdm,
 280         &sgx_pwrdm,
 281         &usbhost_pwrdm,
 282         &dpll5_pwrdm,
 283         NULL
 284 };
 285
 286 /* also includes 3630ES1.1+ */
 287 static struct powerdomain *powerdomains_omap3430es3_1plus[] __initdata = {
 288         &core_3xxx_es3_1_pwrdm,
 289         &sgx_pwrdm,
 290         &usbhost_pwrdm,
 291         &dpll5_pwrdm,
 292         NULL
 293 };
 294
 295 void __init omap3xxx_powerdomains_init(void)
 296 {
 297         unsigned int rev;
 298
 299         if (!cpu_is_omap34xx())
 300                 return;
 301
 302         pwrdm_register_platform_funcs(&omap3_pwrdm_operations);
 303         pwrdm_register_pwrdms(powerdomains_omap3430_common);
 304
 305         rev = omap_rev();
 306
 307         if (rev == OMAP3430_REV_ES1_0)
 308                 pwrdm_register_pwrdms(powerdomains_omap3430es1);
 309         else if (rev == OMAP3430_REV_ES2_0 || rev == OMAP3430_REV_ES2_1 ||
 310                  rev == OMAP3430_REV_ES3_0 || rev == OMAP3630_REV_ES1_0)
 311                 pwrdm_register_pwrdms(powerdomains_omap3430es2_es3_0);
 312         else if (rev == OMAP3430_REV_ES3_1 || rev == OMAP3430_REV_ES3_1_2 ||
 313                  rev == OMAP3517_REV_ES1_0 || rev == OMAP3517_REV_ES1_1 ||
 314                  rev == OMAP3630_REV_ES1_1 || rev == OMAP3630_REV_ES1_2)
 315                 pwrdm_register_pwrdms(powerdomains_omap3430es3_1plus);
 316         else
 317                 WARN(1, "OMAP3 powerdomain init: unknown chip type\n");
 318
 319         pwrdm_complete_init();
 320 }