arch/arm/mach-davinci/da850.c

   1 /*
   2  * TI DA850/OMAP-L138 chip specific setup
   3  *
   4  * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
   5  *
   6  * Derived from: arch/arm/mach-davinci/da830.c
   7  * Original Copyrights follow:
   8  *
   9  * 2009 (c) MontaVista Software, Inc. This file is licensed under
  10  * the terms of the GNU General Public License version 2. This program
  11  * is licensed "as is" without any warranty of any kind, whether express
  12  * or implied.
  13  */
  14 #include <linux/init.h>
  15 #include <linux/clk.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/cpufreq.h>
  18 #include <linux/regulator/consumer.h>
  19
  20 #include <asm/mach/map.h>
  21
  22 #include <mach/psc.h>
  23 #include <mach/irqs.h>
  24 #include <mach/cputype.h>
  25 #include <mach/common.h>
  26 #include <mach/time.h>
  27 #include <mach/da8xx.h>
  28 #include <mach/cpufreq.h>
  29 #include <mach/pm.h>
  30 #include <mach/gpio.h>
  31
  32 #include "clock.h"
  33 #include "mux.h"
  34
  35 /* SoC specific clock flags */
  36 #define DA850_CLK_ASYNC3        BIT(16)
  37
  38 #define DA850_PLL1_BASE         0x01e1a000
  39 #define DA850_TIMER64P2_BASE    0x01f0c000
  40 #define DA850_TIMER64P3_BASE    0x01f0d000
  41
  42 #define DA850_REF_FREQ          24000000
  43
  44 #define CFGCHIP3_ASYNC3_CLKSRC  BIT(4)
  45 #define CFGCHIP3_PLL1_MASTER_LOCK       BIT(5)
  46 #define CFGCHIP0_PLL_MASTER_LOCK        BIT(4)
  47
  48 static int da850_set_armrate(struct clk *clk, unsigned long rate);
  49 static int da850_round_armrate(struct clk *clk, unsigned long rate);
  50 static int da850_set_pll0rate(struct clk *clk, unsigned long armrate);
  51
  52 static struct pll_data pll0_data = {
  53         .num            = 1,
  54         .phys_base      = DA8XX_PLL0_BASE,
  55         .flags          = PLL_HAS_PREDIV | PLL_HAS_POSTDIV,
  56 };
  57
  58 static struct clk ref_clk = {
  59         .name           = "ref_clk",
  60         .rate           = DA850_REF_FREQ,
  61         .set_rate       = davinci_simple_set_rate,
  62 };
  63
  64 static struct clk pll0_clk = {
  65         .name           = "pll0",
  66         .parent         = &ref_clk,
  67         .pll_data       = &pll0_data,
  68         .flags          = CLK_PLL,
  69         .set_rate       = da850_set_pll0rate,
  70 };
  71
  72 static struct clk pll0_aux_clk = {
  73         .name           = "pll0_aux_clk",
  74         .parent         = &pll0_clk,
  75         .flags          = CLK_PLL | PRE_PLL,
  76 };
  77
  78 static struct clk pll0_sysclk2 = {
  79         .name           = "pll0_sysclk2",
  80         .parent         = &pll0_clk,
  81         .flags          = CLK_PLL,
  82         .div_reg        = PLLDIV2,
  83 };
  84
  85 static struct clk pll0_sysclk3 = {
  86         .name           = "pll0_sysclk3",
  87         .parent         = &pll0_clk,
  88         .flags          = CLK_PLL,
  89         .div_reg        = PLLDIV3,
  90         .set_rate       = davinci_set_sysclk_rate,
  91         .maxrate        = 100000000,
  92 };
  93
  94 static struct clk pll0_sysclk4 = {
  95         .name           = "pll0_sysclk4",
  96         .parent         = &pll0_clk,
  97         .flags          = CLK_PLL,
  98         .div_reg        = PLLDIV4,
  99 };
 100
 101 static struct clk pll0_sysclk5 = {
 102         .name           = "pll0_sysclk5",
 103         .parent         = &pll0_clk,
 104         .flags          = CLK_PLL,
 105         .div_reg        = PLLDIV5,
 106 };
 107
 108 static struct clk pll0_sysclk6 = {
 109         .name           = "pll0_sysclk6",
 110         .parent         = &pll0_clk,
 111         .flags          = CLK_PLL,
 112         .div_reg        = PLLDIV6,
 113 };
 114
 115 static struct clk pll0_sysclk7 = {
 116         .name           = "pll0_sysclk7",
 117         .parent         = &pll0_clk,
 118         .flags          = CLK_PLL,
 119         .div_reg        = PLLDIV7,
 120 };
 121
 122 static struct pll_data pll1_data = {
 123         .num            = 2,
 124         .phys_base      = DA850_PLL1_BASE,
 125         .flags          = PLL_HAS_POSTDIV,
 126 };
 127
 128 static struct clk pll1_clk = {
 129         .name           = "pll1",
 130         .parent         = &ref_clk,
 131         .pll_data       = &pll1_data,
 132         .flags          = CLK_PLL,
 133 };
 134
 135 static struct clk pll1_aux_clk = {
 136         .name           = "pll1_aux_clk",
 137         .parent         = &pll1_clk,
 138         .flags          = CLK_PLL | PRE_PLL,
 139 };
 140
 141 static struct clk pll1_sysclk2 = {
 142         .name           = "pll1_sysclk2",
 143         .parent         = &pll1_clk,
 144         .flags          = CLK_PLL,
 145         .div_reg        = PLLDIV2,
 146 };
 147
 148 static struct clk pll1_sysclk3 = {
 149         .name           = "pll1_sysclk3",
 150         .parent         = &pll1_clk,
 151         .flags          = CLK_PLL,
 152         .div_reg        = PLLDIV3,
 153 };
 154
 155 static struct clk pll1_sysclk4 = {
 156         .name           = "pll1_sysclk4",
 157         .parent         = &pll1_clk,
 158         .flags          = CLK_PLL,
 159         .div_reg        = PLLDIV4,
 160 };
 161
 162 static struct clk pll1_sysclk5 = {
 163         .name           = "pll1_sysclk5",
 164         .parent         = &pll1_clk,
 165         .flags          = CLK_PLL,
 166         .div_reg        = PLLDIV5,
 167 };
 168
 169 static struct clk pll1_sysclk6 = {
 170         .name           = "pll0_sysclk6",
 171         .parent         = &pll0_clk,
 172         .flags          = CLK_PLL,
 173         .div_reg        = PLLDIV6,
 174 };
 175
 176 static struct clk pll1_sysclk7 = {
 177         .name           = "pll1_sysclk7",
 178         .parent         = &pll1_clk,
 179         .flags          = CLK_PLL,
 180         .div_reg        = PLLDIV7,
 181 };
 182
 183 static struct clk i2c0_clk = {
 184         .name           = "i2c0",
 185         .parent         = &pll0_aux_clk,
 186 };
 187
 188 static struct clk timerp64_0_clk = {
 189         .name           = "timer0",
 190         .parent         = &pll0_aux_clk,
 191 };
 192
 193 static struct clk timerp64_1_clk = {
 194         .name           = "timer1",
 195         .parent         = &pll0_aux_clk,
 196 };
 197
 198 static struct clk arm_rom_clk = {
 199         .name           = "arm_rom",
 200         .parent         = &pll0_sysclk2,
 201         .lpsc           = DA8XX_LPSC0_ARM_RAM_ROM,
 202         .flags          = ALWAYS_ENABLED,
 203 };
 204
 205 static struct clk tpcc0_clk = {
 206         .name           = "tpcc0",
 207         .parent         = &pll0_sysclk2,
 208         .lpsc           = DA8XX_LPSC0_TPCC,
 209         .flags          = ALWAYS_ENABLED | CLK_PSC,
 210 };
 211
 212 static struct clk tptc0_clk = {
 213         .name           = "tptc0",
 214         .parent         = &pll0_sysclk2,
 215         .lpsc           = DA8XX_LPSC0_TPTC0,
 216         .flags          = ALWAYS_ENABLED,
 217 };
 218
 219 static struct clk tptc1_clk = {
 220         .name           = "tptc1",
 221         .parent         = &pll0_sysclk2,
 222         .lpsc           = DA8XX_LPSC0_TPTC1,
 223         .flags          = ALWAYS_ENABLED,
 224 };
 225
 226 static struct clk tpcc1_clk = {
 227         .name           = "tpcc1",
 228         .parent         = &pll0_sysclk2,
 229         .lpsc           = DA850_LPSC1_TPCC1,
 230         .gpsc           = 1,
 231         .flags          = CLK_PSC | ALWAYS_ENABLED,
 232 };
 233
 234 static struct clk tptc2_clk = {
 235         .name           = "tptc2",
 236         .parent         = &pll0_sysclk2,
 237         .lpsc           = DA850_LPSC1_TPTC2,
 238         .gpsc           = 1,
 239         .flags          = ALWAYS_ENABLED,
 240 };
 241
 242 static struct clk uart0_clk = {
 243         .name           = "uart0",
 244         .parent         = &pll0_sysclk2,
 245         .lpsc           = DA8XX_LPSC0_UART0,
 246 };
 247
 248 static struct clk uart1_clk = {
 249         .name           = "uart1",
 250         .parent         = &pll0_sysclk2,
 251         .lpsc           = DA8XX_LPSC1_UART1,
 252         .gpsc           = 1,
 253         .flags          = DA850_CLK_ASYNC3,
 254 };
 255
 256 static struct clk uart2_clk = {
 257         .name           = "uart2",
 258         .parent         = &pll0_sysclk2,
 259         .lpsc           = DA8XX_LPSC1_UART2,
 260         .gpsc           = 1,
 261         .flags          = DA850_CLK_ASYNC3,
 262 };
 263
 264 static struct clk aintc_clk = {
 265         .name           = "aintc",
 266         .parent         = &pll0_sysclk4,
 267         .lpsc           = DA8XX_LPSC0_AINTC,
 268         .flags          = ALWAYS_ENABLED,
 269 };
 270
 271 static struct clk gpio_clk = {
 272         .name           = "gpio",
 273         .parent         = &pll0_sysclk4,
 274         .lpsc           = DA8XX_LPSC1_GPIO,
 275         .gpsc           = 1,
 276 };
 277
 278 static struct clk i2c1_clk = {
 279         .name           = "i2c1",
 280         .parent         = &pll0_sysclk4,
 281         .lpsc           = DA8XX_LPSC1_I2C,
 282         .gpsc           = 1,
 283 };
 284
 285 static struct clk emif3_clk = {
 286         .name           = "emif3",
 287         .parent         = &pll0_sysclk5,
 288         .lpsc           = DA8XX_LPSC1_EMIF3C,
 289         .gpsc           = 1,
 290         .flags          = ALWAYS_ENABLED,
 291 };
 292
 293 static struct clk arm_clk = {
 294         .name           = "arm",
 295         .parent         = &pll0_sysclk6,
 296         .lpsc           = DA8XX_LPSC0_ARM,
 297         .flags          = ALWAYS_ENABLED,
 298         .set_rate       = da850_set_armrate,
 299         .round_rate     = da850_round_armrate,
 300 };
 301
 302 static struct clk rmii_clk = {
 303         .name           = "rmii",
 304         .parent         = &pll0_sysclk7,
 305 };
 306
 307 static struct clk emac_clk = {
 308         .name           = "emac",
 309         .parent         = &pll0_sysclk4,
 310         .lpsc           = DA8XX_LPSC1_CPGMAC,
 311         .gpsc           = 1,
 312 };
 313
 314 static struct clk mcasp_clk = {
 315         .name           = "mcasp",
 316         .parent         = &pll0_sysclk2,
 317         .lpsc           = DA8XX_LPSC1_McASP0,
 318         .gpsc           = 1,
 319         .flags          = DA850_CLK_ASYNC3,
 320 };
 321
 322 static struct clk lcdc_clk = {
 323         .name           = "lcdc",
 324         .parent         = &pll0_sysclk2,
 325         .lpsc           = DA8XX_LPSC1_LCDC,
 326         .gpsc           = 1,
 327 };
 328
 329 static struct clk mmcsd0_clk = {
 330         .name           = "mmcsd0",
 331         .parent         = &pll0_sysclk2,
 332         .lpsc           = DA8XX_LPSC0_MMC_SD,
 333 };
 334
 335 static struct clk mmcsd1_clk = {
 336         .name           = "mmcsd1",
 337         .parent         = &pll0_sysclk2,
 338         .lpsc           = DA850_LPSC1_MMC_SD1,
 339         .gpsc           = 1,
 340 };
 341
 342 static struct clk aemif_clk = {
 343         .name           = "aemif",
 344         .parent         = &pll0_sysclk3,
 345         .lpsc           = DA8XX_LPSC0_EMIF25,
 346         .flags          = ALWAYS_ENABLED,
 347 };
 348
 349 static struct clk usb11_clk = {
 350         .name           = "usb11",
 351         .parent         = &pll0_sysclk4,
 352         .lpsc           = DA8XX_LPSC1_USB11,
 353         .gpsc           = 1,
 354 };
 355
 356 static struct clk usb20_clk = {
 357         .name           = "usb20",
 358         .parent         = &pll0_sysclk2,
 359         .lpsc           = DA8XX_LPSC1_USB20,
 360         .gpsc           = 1,
 361 };
 362
 363 static struct clk spi0_clk = {
 364         .name           = "spi0",
 365         .parent         = &pll0_sysclk2,
 366         .lpsc           = DA8XX_LPSC0_SPI0,
 367 };
 368
 369 static struct clk spi1_clk = {
 370         .name           = "spi1",
 371         .parent         = &pll0_sysclk2,
 372         .lpsc           = DA8XX_LPSC1_SPI1,
 373         .gpsc           = 1,
 374         .flags          = DA850_CLK_ASYNC3,
 375 };
 376
 377 static struct clk sata_clk = {
 378         .name           = "sata",
 379         .parent         = &pll0_sysclk2,
 380         .lpsc           = DA850_LPSC1_SATA,
 381         .gpsc           = 1,
 382         .flags          = PSC_FORCE,
 383 };
 384
 385 static struct clk_lookup da850_clks[] = {
 386         CLK(NULL,               "ref",          &ref_clk),
 387         CLK(NULL,               "pll0",         &pll0_clk),
 388         CLK(NULL,               "pll0_aux",     &pll0_aux_clk),
 389         CLK(NULL,               "pll0_sysclk2", &pll0_sysclk2),
 390         CLK(NULL,               "pll0_sysclk3", &pll0_sysclk3),
 391         CLK(NULL,               "pll0_sysclk4", &pll0_sysclk4),
 392         CLK(NULL,               "pll0_sysclk5", &pll0_sysclk5),
 393         CLK(NULL,               "pll0_sysclk6", &pll0_sysclk6),
 394         CLK(NULL,               "pll0_sysclk7", &pll0_sysclk7),
 395         CLK(NULL,               "pll1",         &pll1_clk),
 396         CLK(NULL,               "pll1_aux",     &pll1_aux_clk),
 397         CLK(NULL,               "pll1_sysclk2", &pll1_sysclk2),
 398         CLK(NULL,               "pll1_sysclk3", &pll1_sysclk3),
 399         CLK(NULL,               "pll1_sysclk4", &pll1_sysclk4),
 400         CLK(NULL,               "pll1_sysclk5", &pll1_sysclk5),
 401         CLK(NULL,               "pll1_sysclk6", &pll1_sysclk6),
 402         CLK(NULL,               "pll1_sysclk7", &pll1_sysclk7),
 403         CLK("i2c_davinci.1",    NULL,           &i2c0_clk),
 404         CLK(NULL,               "timer0",       &timerp64_0_clk),
 405         CLK("watchdog",         NULL,           &timerp64_1_clk),
 406         CLK(NULL,               "arm_rom",      &arm_rom_clk),
 407         CLK(NULL,               "tpcc0",        &tpcc0_clk),
 408         CLK(NULL,               "tptc0",        &tptc0_clk),
 409         CLK(NULL,               "tptc1",        &tptc1_clk),
 410         CLK(NULL,               "tpcc1",        &tpcc1_clk),
 411         CLK(NULL,               "tptc2",        &tptc2_clk),
 412         CLK(NULL,               "uart0",        &uart0_clk),
 413         CLK(NULL,               "uart1",        &uart1_clk),
 414         CLK(NULL,               "uart2",        &uart2_clk),
 415         CLK(NULL,               "aintc",        &aintc_clk),
 416         CLK(NULL,               "gpio",         &gpio_clk),
 417         CLK("i2c_davinci.2",    NULL,           &i2c1_clk),
 418         CLK(NULL,               "emif3",        &emif3_clk),
 419         CLK(NULL,               "arm",          &arm_clk),
 420         CLK(NULL,               "rmii",         &rmii_clk),
 421         CLK("davinci_emac.1",   NULL,           &emac_clk),
 422         CLK("davinci-mcasp.0",  NULL,           &mcasp_clk),
 423         CLK("da8xx_lcdc.0",     NULL,           &lcdc_clk),
 424         CLK("davinci_mmc.0",    NULL,           &mmcsd0_clk),
 425         CLK("davinci_mmc.1",    NULL,           &mmcsd1_clk),
 426         CLK(NULL,               "aemif",        &aemif_clk),
 427         CLK(NULL,               "usb11",        &usb11_clk),
 428         CLK(NULL,               "usb20",        &usb20_clk),
 429         CLK("spi_davinci.0",    NULL,           &spi0_clk),
 430         CLK("spi_davinci.1",    NULL,           &spi1_clk),
 431         CLK("ahci",             NULL,           &sata_clk),
 432         CLK(NULL,               NULL,           NULL),
 433 };
 434
 435 /*
 436  * Device specific mux setup
 437  *
 438  *              soc     description     mux     mode    mode    mux     dbg
 439  *                                      reg     offset  mask    mode
 440  */
 441 static const struct mux_config da850_pins[] = {
 442 #ifdef CONFIG_DAVINCI_MUX
 443         /* UART0 function */
 444         MUX_CFG(DA850, NUART0_CTS,      3,      24,     15,     2,      false)
 445         MUX_CFG(DA850, NUART0_RTS,      3,      28,     15,     2,      false)
 446         MUX_CFG(DA850, UART0_RXD,       3,      16,     15,     2,      false)
 447         MUX_CFG(DA850, UART0_TXD,       3,      20,     15,     2,      false)
 448         /* UART1 function */
 449         MUX_CFG(DA850, UART1_RXD,       4,      24,     15,     2,      false)
 450         MUX_CFG(DA850, UART1_TXD,       4,      28,     15,     2,      false)
 451         /* UART2 function */
 452         MUX_CFG(DA850, UART2_RXD,       4,      16,     15,     2,      false)
 453         MUX_CFG(DA850, UART2_TXD,       4,      20,     15,     2,      false)
 454         /* I2C1 function */
 455         MUX_CFG(DA850, I2C1_SCL,        4,      16,     15,     4,      false)
 456         MUX_CFG(DA850, I2C1_SDA,        4,      20,     15,     4,      false)
 457         /* I2C0 function */
 458         MUX_CFG(DA850, I2C0_SDA,        4,      12,     15,     2,      false)
 459         MUX_CFG(DA850, I2C0_SCL,        4,      8,      15,     2,      false)
 460         /* EMAC function */
 461         MUX_CFG(DA850, MII_TXEN,        2,      4,      15,     8,      false)
 462         MUX_CFG(DA850, MII_TXCLK,       2,      8,      15,     8,      false)
 463         MUX_CFG(DA850, MII_COL,         2,      12,     15,     8,      false)
 464         MUX_CFG(DA850, MII_TXD_3,       2,      16,     15,     8,      false)
 465         MUX_CFG(DA850, MII_TXD_2,       2,      20,     15,     8,      false)
 466         MUX_CFG(DA850, MII_TXD_1,       2,      24,     15,     8,      false)
 467         MUX_CFG(DA850, MII_TXD_0,       2,      28,     15,     8,      false)
 468         MUX_CFG(DA850, MII_RXCLK,       3,      0,      15,     8,      false)
 469         MUX_CFG(DA850, MII_RXDV,        3,      4,      15,     8,      false)
 470         MUX_CFG(DA850, MII_RXER,        3,      8,      15,     8,      false)
 471         MUX_CFG(DA850, MII_CRS,         3,      12,     15,     8,      false)
 472         MUX_CFG(DA850, MII_RXD_3,       3,      16,     15,     8,      false)
 473         MUX_CFG(DA850, MII_RXD_2,       3,      20,     15,     8,      false)
 474         MUX_CFG(DA850, MII_RXD_1,       3,      24,     15,     8,      false)
 475         MUX_CFG(DA850, MII_RXD_0,       3,      28,     15,     8,      false)
 476         MUX_CFG(DA850, MDIO_CLK,        4,      0,      15,     8,      false)
 477         MUX_CFG(DA850, MDIO_D,          4,      4,      15,     8,      false)
 478         MUX_CFG(DA850, RMII_TXD_0,      14,     12,     15,     8,      false)
 479         MUX_CFG(DA850, RMII_TXD_1,      14,     8,      15,     8,      false)
 480         MUX_CFG(DA850, RMII_TXEN,       14,     16,     15,     8,      false)
 481         MUX_CFG(DA850, RMII_CRS_DV,     15,     4,      15,     8,      false)
 482         MUX_CFG(DA850, RMII_RXD_0,      14,     24,     15,     8,      false)
 483         MUX_CFG(DA850, RMII_RXD_1,      14,     20,     15,     8,      false)
 484         MUX_CFG(DA850, RMII_RXER,       14,     28,     15,     8,      false)
 485         MUX_CFG(DA850, RMII_MHZ_50_CLK, 15,     0,      15,     0,      false)
 486         /* McASP function */
 487         MUX_CFG(DA850,  ACLKR,          0,      0,      15,     1,      false)
 488         MUX_CFG(DA850,  ACLKX,          0,      4,      15,     1,      false)
 489         MUX_CFG(DA850,  AFSR,           0,      8,      15,     1,      false)
 490         MUX_CFG(DA850,  AFSX,           0,      12,     15,     1,      false)
 491         MUX_CFG(DA850,  AHCLKR,         0,      16,     15,     1,      false)
 492         MUX_CFG(DA850,  AHCLKX,         0,      20,     15,     1,      false)
 493         MUX_CFG(DA850,  AMUTE,          0,      24,     15,     1,      false)
 494         MUX_CFG(DA850,  AXR_15,         1,      0,      15,     1,      false)
 495         MUX_CFG(DA850,  AXR_14,         1,      4,      15,     1,      false)
 496         MUX_CFG(DA850,  AXR_13,         1,      8,      15,     1,      false)
 497         MUX_CFG(DA850,  AXR_12,         1,      12,     15,     1,      false)
 498         MUX_CFG(DA850,  AXR_11,         1,      16,     15,     1,      false)
 499         MUX_CFG(DA850,  AXR_10,         1,      20,     15,     1,      false)
 500         MUX_CFG(DA850,  AXR_9,          1,      24,     15,     1,      false)
 501         MUX_CFG(DA850,  AXR_8,          1,      28,     15,     1,      false)
 502         MUX_CFG(DA850,  AXR_7,          2,      0,      15,     1,      false)
 503         MUX_CFG(DA850,  AXR_6,          2,      4,      15,     1,      false)
 504         MUX_CFG(DA850,  AXR_5,          2,      8,      15,     1,      false)
 505         MUX_CFG(DA850,  AXR_4,          2,      12,     15,     1,      false)
 506         MUX_CFG(DA850,  AXR_3,          2,      16,     15,     1,      false)
 507         MUX_CFG(DA850,  AXR_2,          2,      20,     15,     1,      false)
 508         MUX_CFG(DA850,  AXR_1,          2,      24,     15,     1,      false)
 509         MUX_CFG(DA850,  AXR_0,          2,      28,     15,     1,      false)
 510         /* LCD function */
 511         MUX_CFG(DA850, LCD_D_7,         16,     8,      15,     2,      false)
 512         MUX_CFG(DA850, LCD_D_6,         16,     12,     15,     2,      false)
 513         MUX_CFG(DA850, LCD_D_5,         16,     16,     15,     2,      false)
 514         MUX_CFG(DA850, LCD_D_4,         16,     20,     15,     2,      false)
 515         MUX_CFG(DA850, LCD_D_3,         16,     24,     15,     2,      false)
 516         MUX_CFG(DA850, LCD_D_2,         16,     28,     15,     2,      false)
 517         MUX_CFG(DA850, LCD_D_1,         17,     0,      15,     2,      false)
 518         MUX_CFG(DA850, LCD_D_0,         17,     4,      15,     2,      false)
 519         MUX_CFG(DA850, LCD_D_15,        17,     8,      15,     2,      false)
 520         MUX_CFG(DA850, LCD_D_14,        17,     12,     15,     2,      false)
 521         MUX_CFG(DA850, LCD_D_13,        17,     16,     15,     2,      false)
 522         MUX_CFG(DA850, LCD_D_12,        17,     20,     15,     2,      false)
 523         MUX_CFG(DA850, LCD_D_11,        17,     24,     15,     2,      false)
 524         MUX_CFG(DA850, LCD_D_10,        17,     28,     15,     2,      false)
 525         MUX_CFG(DA850, LCD_D_9,         18,     0,      15,     2,      false)
 526         MUX_CFG(DA850, LCD_D_8,         18,     4,      15,     2,      false)
 527         MUX_CFG(DA850, LCD_PCLK,        18,     24,     15,     2,      false)
 528         MUX_CFG(DA850, LCD_HSYNC,       19,     0,      15,     2,      false)
 529         MUX_CFG(DA850, LCD_VSYNC,       19,     4,      15,     2,      false)
 530         MUX_CFG(DA850, NLCD_AC_ENB_CS,  19,     24,     15,     2,      false)
 531         /* MMC/SD0 function */
 532         MUX_CFG(DA850, MMCSD0_DAT_0,    10,     8,      15,     2,      false)
 533         MUX_CFG(DA850, MMCSD0_DAT_1,    10,     12,     15,     2,      false)
 534         MUX_CFG(DA850, MMCSD0_DAT_2,    10,     16,     15,     2,      false)
 535         MUX_CFG(DA850, MMCSD0_DAT_3,    10,     20,     15,     2,      false)
 536         MUX_CFG(DA850, MMCSD0_CLK,      10,     0,      15,     2,      false)
 537         MUX_CFG(DA850, MMCSD0_CMD,      10,     4,      15,     2,      false)
 538         /* MMC/SD1 function */
 539         MUX_CFG(DA850, MMCSD1_DAT_0,    18,     8,      15,     2,      false)
 540         MUX_CFG(DA850, MMCSD1_DAT_1,    19,     16,     15,     2,      false)
 541         MUX_CFG(DA850, MMCSD1_DAT_2,    19,     12,     15,     2,      false)
 542         MUX_CFG(DA850, MMCSD1_DAT_3,    19,     8,      15,     2,      false)
 543         MUX_CFG(DA850, MMCSD1_CLK,      18,     12,     15,     2,      false)
 544         MUX_CFG(DA850, MMCSD1_CMD,      18,     16,     15,     2,      false)
 545         /* EMIF2.5/EMIFA function */
 546         MUX_CFG(DA850, EMA_D_7,         9,      0,      15,     1,      false)
 547         MUX_CFG(DA850, EMA_D_6,         9,      4,      15,     1,      false)
 548         MUX_CFG(DA850, EMA_D_5,         9,      8,      15,     1,      false)
 549         MUX_CFG(DA850, EMA_D_4,         9,      12,     15,     1,      false)
 550         MUX_CFG(DA850, EMA_D_3,         9,      16,     15,     1,      false)
 551         MUX_CFG(DA850, EMA_D_2,         9,      20,     15,     1,      false)
 552         MUX_CFG(DA850, EMA_D_1,         9,      24,     15,     1,      false)
 553         MUX_CFG(DA850, EMA_D_0,         9,      28,     15,     1,      false)
 554         MUX_CFG(DA850, EMA_A_1,         12,     24,     15,     1,      false)
 555         MUX_CFG(DA850, EMA_A_2,         12,     20,     15,     1,      false)
 556         MUX_CFG(DA850, NEMA_CS_3,       7,      4,      15,     1,      false)
 557         MUX_CFG(DA850, NEMA_CS_4,       7,      8,      15,     1,      false)
 558         MUX_CFG(DA850, NEMA_WE,         7,      16,     15,     1,      false)
 559         MUX_CFG(DA850, NEMA_OE,         7,      20,     15,     1,      false)
 560         MUX_CFG(DA850, EMA_A_0,         12,     28,     15,     1,      false)
 561         MUX_CFG(DA850, EMA_A_3,         12,     16,     15,     1,      false)
 562         MUX_CFG(DA850, EMA_A_4,         12,     12,     15,     1,      false)
 563         MUX_CFG(DA850, EMA_A_5,         12,     8,      15,     1,      false)
 564         MUX_CFG(DA850, EMA_A_6,         12,     4,      15,     1,      false)
 565         MUX_CFG(DA850, EMA_A_7,         12,     0,      15,     1,      false)
 566         MUX_CFG(DA850, EMA_A_8,         11,     28,     15,     1,      false)
 567         MUX_CFG(DA850, EMA_A_9,         11,     24,     15,     1,      false)
 568         MUX_CFG(DA850, EMA_A_10,        11,     20,     15,     1,      false)
 569         MUX_CFG(DA850, EMA_A_11,        11,     16,     15,     1,      false)
 570         MUX_CFG(DA850, EMA_A_12,        11,     12,     15,     1,      false)
 571         MUX_CFG(DA850, EMA_A_13,        11,     8,      15,     1,      false)
 572         MUX_CFG(DA850, EMA_A_14,        11,     4,      15,     1,      false)
 573         MUX_CFG(DA850, EMA_A_15,        11,     0,      15,     1,      false)
 574         MUX_CFG(DA850, EMA_A_16,        10,     28,     15,     1,      false)
 575         MUX_CFG(DA850, EMA_A_17,        10,     24,     15,     1,      false)
 576         MUX_CFG(DA850, EMA_A_18,        10,     20,     15,     1,      false)
 577         MUX_CFG(DA850, EMA_A_19,        10,     16,     15,     1,      false)
 578         MUX_CFG(DA850, EMA_A_20,        10,     12,     15,     1,      false)
 579         MUX_CFG(DA850, EMA_A_21,        10,     8,      15,     1,      false)
 580         MUX_CFG(DA850, EMA_A_22,        10,     4,      15,     1,      false)
 581         MUX_CFG(DA850, EMA_A_23,        10,     0,      15,     1,      false)
 582         MUX_CFG(DA850, EMA_D_8,         8,      28,     15,     1,      false)
 583         MUX_CFG(DA850, EMA_D_9,         8,      24,     15,     1,      false)
 584         MUX_CFG(DA850, EMA_D_10,        8,      20,     15,     1,      false)
 585         MUX_CFG(DA850, EMA_D_11,        8,      16,     15,     1,      false)
 586         MUX_CFG(DA850, EMA_D_12,        8,      12,     15,     1,      false)
 587         MUX_CFG(DA850, EMA_D_13,        8,      8,      15,     1,      false)
 588         MUX_CFG(DA850, EMA_D_14,        8,      4,      15,     1,      false)
 589         MUX_CFG(DA850, EMA_D_15,        8,      0,      15,     1,      false)
 590         MUX_CFG(DA850, EMA_BA_1,        5,      24,     15,     1,      false)
 591         MUX_CFG(DA850, EMA_CLK,         6,      0,      15,     1,      false)
 592         MUX_CFG(DA850, EMA_WAIT_1,      6,      24,     15,     1,      false)
 593         MUX_CFG(DA850, NEMA_CS_2,       7,      0,      15,     1,      false)
 594         /* GPIO function */
 595         MUX_CFG(DA850, GPIO2_4,         6,      12,     15,     8,      false)
 596         MUX_CFG(DA850, GPIO2_6,         6,      4,      15,     8,      false)
 597         MUX_CFG(DA850, GPIO2_8,         5,      28,     15,     8,      false)
 598         MUX_CFG(DA850, GPIO2_15,        5,      0,      15,     8,      false)
 599         MUX_CFG(DA850, GPIO3_12,        7,      12,     15,     8,      false)
 600         MUX_CFG(DA850, GPIO3_13,        7,      8,      15,     8,      false)
 601         MUX_CFG(DA850, GPIO4_0,         10,     28,     15,     8,      false)
 602         MUX_CFG(DA850, GPIO4_1,         10,     24,     15,     8,      false)
 603         MUX_CFG(DA850, GPIO6_9,         13,     24,     15,     8,      false)
 604         MUX_CFG(DA850, GPIO6_10,        13,     20,     15,     8,      false)
 605         MUX_CFG(DA850, GPIO6_13,        13,     8,      15,     8,      false)
 606         MUX_CFG(DA850, RTC_ALARM,       0,      28,     15,     2,      false)
 607 #endif
 608 };
 609
 610 const short da850_i2c0_pins[] __initdata = {
 611         DA850_I2C0_SDA, DA850_I2C0_SCL,
 612         -1
 613 };
 614
 615 const short da850_i2c1_pins[] __initdata = {
 616         DA850_I2C1_SCL, DA850_I2C1_SDA,
 617         -1
 618 };
 619
 620 const short da850_lcdcntl_pins[] __initdata = {
 621         DA850_LCD_D_0, DA850_LCD_D_1, DA850_LCD_D_2, DA850_LCD_D_3,
 622         DA850_LCD_D_4, DA850_LCD_D_5, DA850_LCD_D_6, DA850_LCD_D_7,
 623         DA850_LCD_D_8, DA850_LCD_D_9, DA850_LCD_D_10, DA850_LCD_D_11,
 624         DA850_LCD_D_12, DA850_LCD_D_13, DA850_LCD_D_14, DA850_LCD_D_15,
 625         DA850_LCD_PCLK, DA850_LCD_HSYNC, DA850_LCD_VSYNC, DA850_NLCD_AC_ENB_CS,
 626         -1
 627 };
 628
 629 /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
 630 static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = {
 631         [IRQ_DA8XX_COMMTX]              = 7,
 632         [IRQ_DA8XX_COMMRX]              = 7,
 633         [IRQ_DA8XX_NINT]                = 7,
 634         [IRQ_DA8XX_EVTOUT0]             = 7,
 635         [IRQ_DA8XX_EVTOUT1]             = 7,
 636         [IRQ_DA8XX_EVTOUT2]             = 7,
 637         [IRQ_DA8XX_EVTOUT3]             = 7,
 638         [IRQ_DA8XX_EVTOUT4]             = 7,
 639         [IRQ_DA8XX_EVTOUT5]             = 7,
 640         [IRQ_DA8XX_EVTOUT6]             = 7,
 641         [IRQ_DA8XX_EVTOUT7]             = 7,
 642         [IRQ_DA8XX_CCINT0]              = 7,
 643         [IRQ_DA8XX_CCERRINT]            = 7,
 644         [IRQ_DA8XX_TCERRINT0]           = 7,
 645         [IRQ_DA8XX_AEMIFINT]            = 7,
 646         [IRQ_DA8XX_I2CINT0]             = 7,
 647         [IRQ_DA8XX_MMCSDINT0]           = 7,
 648         [IRQ_DA8XX_MMCSDINT1]           = 7,
 649         [IRQ_DA8XX_ALLINT0]             = 7,
 650         [IRQ_DA8XX_RTC]                 = 7,
 651         [IRQ_DA8XX_SPINT0]              = 7,
 652         [IRQ_DA8XX_TINT12_0]            = 7,
 653         [IRQ_DA8XX_TINT34_0]            = 7,
 654         [IRQ_DA8XX_TINT12_1]            = 7,
 655         [IRQ_DA8XX_TINT34_1]            = 7,
 656         [IRQ_DA8XX_UARTINT0]            = 7,
 657         [IRQ_DA8XX_KEYMGRINT]           = 7,
 658         [IRQ_DA850_MPUADDRERR0]         = 7,
 659         [IRQ_DA8XX_CHIPINT0]            = 7,
 660         [IRQ_DA8XX_CHIPINT1]            = 7,
 661         [IRQ_DA8XX_CHIPINT2]            = 7,
 662         [IRQ_DA8XX_CHIPINT3]            = 7,
 663         [IRQ_DA8XX_TCERRINT1]           = 7,
 664         [IRQ_DA8XX_C0_RX_THRESH_PULSE]  = 7,
 665         [IRQ_DA8XX_C0_RX_PULSE]         = 7,
 666         [IRQ_DA8XX_C0_TX_PULSE]         = 7,
 667         [IRQ_DA8XX_C0_MISC_PULSE]       = 7,
 668         [IRQ_DA8XX_C1_RX_THRESH_PULSE]  = 7,
 669         [IRQ_DA8XX_C1_RX_PULSE]         = 7,
 670         [IRQ_DA8XX_C1_TX_PULSE]         = 7,
 671         [IRQ_DA8XX_C1_MISC_PULSE]       = 7,
 672         [IRQ_DA8XX_MEMERR]              = 7,
 673         [IRQ_DA8XX_GPIO0]               = 7,
 674         [IRQ_DA8XX_GPIO1]               = 7,
 675         [IRQ_DA8XX_GPIO2]               = 7,
 676         [IRQ_DA8XX_GPIO3]               = 7,
 677         [IRQ_DA8XX_GPIO4]               = 7,
 678         [IRQ_DA8XX_GPIO5]               = 7,
 679         [IRQ_DA8XX_GPIO6]               = 7,
 680         [IRQ_DA8XX_GPIO7]               = 7,
 681         [IRQ_DA8XX_GPIO8]               = 7,
 682         [IRQ_DA8XX_I2CINT1]             = 7,
 683         [IRQ_DA8XX_LCDINT]              = 7,
 684         [IRQ_DA8XX_UARTINT1]            = 7,
 685         [IRQ_DA8XX_MCASPINT]            = 7,
 686         [IRQ_DA8XX_ALLINT1]             = 7,
 687         [IRQ_DA8XX_SPINT1]              = 7,
 688         [IRQ_DA8XX_UHPI_INT1]           = 7,
 689         [IRQ_DA8XX_USB_INT]             = 7,
 690         [IRQ_DA8XX_IRQN]                = 7,
 691         [IRQ_DA8XX_RWAKEUP]             = 7,
 692         [IRQ_DA8XX_UARTINT2]            = 7,
 693         [IRQ_DA8XX_DFTSSINT]            = 7,
 694         [IRQ_DA8XX_EHRPWM0]             = 7,
 695         [IRQ_DA8XX_EHRPWM0TZ]           = 7,
 696         [IRQ_DA8XX_EHRPWM1]             = 7,
 697         [IRQ_DA8XX_EHRPWM1TZ]           = 7,
 698         [IRQ_DA850_SATAINT]             = 7,
 699         [IRQ_DA850_TINTALL_2]           = 7,
 700         [IRQ_DA8XX_ECAP0]               = 7,
 701         [IRQ_DA8XX_ECAP1]               = 7,
 702         [IRQ_DA8XX_ECAP2]               = 7,
 703         [IRQ_DA850_MMCSDINT0_1]         = 7,
 704         [IRQ_DA850_MMCSDINT1_1]         = 7,
 705         [IRQ_DA850_T12CMPINT0_2]        = 7,
 706         [IRQ_DA850_T12CMPINT1_2]        = 7,
 707         [IRQ_DA850_T12CMPINT2_2]        = 7,
 708         [IRQ_DA850_T12CMPINT3_2]        = 7,
 709         [IRQ_DA850_T12CMPINT4_2]        = 7,
 710         [IRQ_DA850_T12CMPINT5_2]        = 7,
 711         [IRQ_DA850_T12CMPINT6_2]        = 7,
 712         [IRQ_DA850_T12CMPINT7_2]        = 7,
 713         [IRQ_DA850_T12CMPINT0_3]        = 7,
 714         [IRQ_DA850_T12CMPINT1_3]        = 7,
 715         [IRQ_DA850_T12CMPINT2_3]        = 7,
 716         [IRQ_DA850_T12CMPINT3_3]        = 7,
 717         [IRQ_DA850_T12CMPINT4_3]        = 7,
 718         [IRQ_DA850_T12CMPINT5_3]        = 7,
 719         [IRQ_DA850_T12CMPINT6_3]        = 7,
 720         [IRQ_DA850_T12CMPINT7_3]        = 7,
 721         [IRQ_DA850_RPIINT]              = 7,
 722         [IRQ_DA850_VPIFINT]             = 7,
 723         [IRQ_DA850_CCINT1]              = 7,
 724         [IRQ_DA850_CCERRINT1]           = 7,
 725         [IRQ_DA850_TCERRINT2]           = 7,
 726         [IRQ_DA850_TINTALL_3]           = 7,
 727         [IRQ_DA850_MCBSP0RINT]          = 7,
 728         [IRQ_DA850_MCBSP0XINT]          = 7,
 729         [IRQ_DA850_MCBSP1RINT]          = 7,
 730         [IRQ_DA850_MCBSP1XINT]          = 7,
 731         [IRQ_DA8XX_ARMCLKSTOPREQ]       = 7,
 732 };
 733
 734 static struct map_desc da850_io_desc[] = {
 735         {
 736                 .virtual        = IO_VIRT,
 737                 .pfn            = __phys_to_pfn(IO_PHYS),
 738                 .length         = IO_SIZE,
 739                 .type           = MT_DEVICE
 740         },
 741         {
 742                 .virtual        = DA8XX_CP_INTC_VIRT,
 743                 .pfn            = __phys_to_pfn(DA8XX_CP_INTC_BASE),
 744                 .length         = DA8XX_CP_INTC_SIZE,
 745                 .type           = MT_DEVICE
 746         },
 747         {
 748                 .virtual        = SRAM_VIRT,
 749                 .pfn            = __phys_to_pfn(DA8XX_ARM_RAM_BASE),
 750                 .length         = SZ_8K,
 751                 .type           = MT_DEVICE
 752         },
 753 };
 754
 755 static u32 da850_psc_bases[] = { DA8XX_PSC0_BASE, DA8XX_PSC1_BASE };
 756
 757 /* Contents of JTAG ID register used to identify exact cpu type */
 758 static struct davinci_id da850_ids[] = {
 759         {
 760                 .variant        = 0x0,
 761                 .part_no        = 0xb7d1,
 762                 .manufacturer   = 0x017,        /* 0x02f >> 1 */
 763                 .cpu_id         = DAVINCI_CPU_ID_DA850,
 764                 .name           = "da850/omap-l138",
 765         },
 766         {
 767                 .variant        = 0x1,
 768                 .part_no        = 0xb7d1,
 769                 .manufacturer   = 0x017,        /* 0x02f >> 1 */
 770                 .cpu_id         = DAVINCI_CPU_ID_DA850,
 771                 .name           = "da850/omap-l138/am18x",
 772         },
 773 };
 774
 775 static struct davinci_timer_instance da850_timer_instance[4] = {
 776         {
 777                 .base           = DA8XX_TIMER64P0_BASE,
 778                 .bottom_irq     = IRQ_DA8XX_TINT12_0,
 779                 .top_irq        = IRQ_DA8XX_TINT34_0,
 780         },
 781         {
 782                 .base           = DA8XX_TIMER64P1_BASE,
 783                 .bottom_irq     = IRQ_DA8XX_TINT12_1,
 784                 .top_irq        = IRQ_DA8XX_TINT34_1,
 785         },
 786         {
 787                 .base           = DA850_TIMER64P2_BASE,
 788                 .bottom_irq     = IRQ_DA850_TINT12_2,
 789                 .top_irq        = IRQ_DA850_TINT34_2,
 790         },
 791         {
 792                 .base           = DA850_TIMER64P3_BASE,
 793                 .bottom_irq     = IRQ_DA850_TINT12_3,
 794                 .top_irq        = IRQ_DA850_TINT34_3,
 795         },
 796 };
 797
 798 /*
 799  * T0_BOT: Timer 0, bottom              : Used for clock_event
 800  * T0_TOP: Timer 0, top                 : Used for clocksource
 801  * T1_BOT, T1_TOP: Timer 1, bottom & top: Used for watchdog timer
 802  */
 803 static struct davinci_timer_info da850_timer_info = {
 804         .timers         = da850_timer_instance,
 805         .clockevent_id  = T0_BOT,
 806         .clocksource_id = T0_TOP,
 807 };
 808
 809 static void da850_set_async3_src(int pllnum)
 810 {
 811         struct clk *clk, *newparent = pllnum ? &pll1_sysclk2 : &pll0_sysclk2;
 812         struct clk_lookup *c;
 813         unsigned int v;
 814         int ret;
 815
 816         for (c = da850_clks; c->clk; c++) {
 817                 clk = c->clk;
 818                 if (clk->flags & DA850_CLK_ASYNC3) {
 819                         ret = clk_set_parent(clk, newparent);
 820                         WARN(ret, "DA850: unable to re-parent clock %s",
 821                                                                 clk->name);
 822                 }
 823        }
 824
 825         v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
 826         if (pllnum)
 827                 v |= CFGCHIP3_ASYNC3_CLKSRC;
 828         else
 829                 v &= ~CFGCHIP3_ASYNC3_CLKSRC;
 830         __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
 831 }
 832
 833 #ifdef CONFIG_CPU_FREQ
 834 /*
 835  * Notes:
 836  * According to the TRM, minimum PLLM results in maximum power savings.
 837  * The OPP definitions below should keep the PLLM as low as possible.
 838  *
 839  * The output of the PLLM must be between 300 to 600 MHz.
 840  */
 841 struct da850_opp {
 842         unsigned int    freq;   /* in KHz */
 843         unsigned int    prediv;
 844         unsigned int    mult;
 845         unsigned int    postdiv;
 846         unsigned int    cvdd_min; /* in uV */
 847         unsigned int    cvdd_max; /* in uV */
 848 };
 849
 850 static const struct da850_opp da850_opp_456 = {
 851         .freq           = 456000,
 852         .prediv         = 1,
 853         .mult           = 19,
 854         .postdiv        = 1,
 855         .cvdd_min       = 1300000,
 856         .cvdd_max       = 1350000,
 857 };
 858
 859 static const struct da850_opp da850_opp_408 = {
 860         .freq           = 408000,
 861         .prediv         = 1,
 862         .mult           = 17,
 863         .postdiv        = 1,
 864         .cvdd_min       = 1300000,
 865         .cvdd_max       = 1350000,
 866 };
 867
 868 static const struct da850_opp da850_opp_372 = {
 869         .freq           = 372000,
 870         .prediv         = 2,
 871         .mult           = 31,
 872         .postdiv        = 1,
 873         .cvdd_min       = 1200000,
 874         .cvdd_max       = 1320000,
 875 };
 876
 877 static const struct da850_opp da850_opp_300 = {
 878         .freq           = 300000,
 879         .prediv         = 1,
 880         .mult           = 25,
 881         .postdiv        = 2,
 882         .cvdd_min       = 1200000,
 883         .cvdd_max       = 1320000,
 884 };
 885
 886 static const struct da850_opp da850_opp_200 = {
 887         .freq           = 200000,
 888         .prediv         = 1,
 889         .mult           = 25,
 890         .postdiv        = 3,
 891         .cvdd_min       = 1100000,
 892         .cvdd_max       = 1160000,
 893 };
 894
 895 static const struct da850_opp da850_opp_96 = {
 896         .freq           = 96000,
 897         .prediv         = 1,
 898         .mult           = 20,
 899         .postdiv        = 5,
 900         .cvdd_min       = 1000000,
 901         .cvdd_max       = 1050000,
 902 };
 903
 904 #define OPP(freq)               \
 905         {                               \
 906                 .index = (unsigned int) &da850_opp_##freq,      \
 907                 .frequency = freq * 1000, \
 908         }
 909
 910 static struct cpufreq_frequency_table da850_freq_table[] = {
 911         OPP(456),
 912         OPP(408),
 913         OPP(372),
 914         OPP(300),
 915         OPP(200),
 916         OPP(96),
 917         {
 918                 .index          = 0,
 919                 .frequency      = CPUFREQ_TABLE_END,
 920         },
 921 };
 922
 923 #ifdef CONFIG_REGULATOR
 924 static int da850_set_voltage(unsigned int index);
 925 static int da850_regulator_init(void);
 926 #endif
 927
 928 static struct davinci_cpufreq_config cpufreq_info = {
 929         .freq_table = da850_freq_table,
 930 #ifdef CONFIG_REGULATOR
 931         .init = da850_regulator_init,
 932         .set_voltage = da850_set_voltage,
 933 #endif
 934 };
 935
 936 #ifdef CONFIG_REGULATOR
 937 static struct regulator *cvdd;
 938
 939 static int da850_set_voltage(unsigned int index)
 940 {
 941         struct da850_opp *opp;
 942
 943         if (!cvdd)
 944                 return -ENODEV;
 945
 946         opp = (struct da850_opp *) cpufreq_info.freq_table[index].index;
 947
 948         return regulator_set_voltage(cvdd, opp->cvdd_min, opp->cvdd_max);
 949 }
 950
 951 static int da850_regulator_init(void)
 952 {
 953         cvdd = regulator_get(NULL, "cvdd");
 954         if (WARN(IS_ERR(cvdd), "Unable to obtain voltage regulator for CVDD;"
 955                                         " voltage scaling unsupported\n")) {
 956                 return PTR_ERR(cvdd);
 957         }
 958
 959         return 0;
 960 }
 961 #endif
 962
 963 static struct platform_device da850_cpufreq_device = {
 964         .name                   = "cpufreq-davinci",
 965         .dev = {
 966                 .platform_data  = &cpufreq_info,
 967         },
 968         .id = -1,
 969 };
 970
 971 unsigned int da850_max_speed = 300000;
 972
 973 int __init da850_register_cpufreq(char *async_clk)
 974 {
 975         int i;
 976
 977         /* cpufreq driver can help keep an "async" clock constant */
 978         if (async_clk)
 979                 clk_add_alias("async", da850_cpufreq_device.name,
 980                                                         async_clk, NULL);
 981         for (i = 0; i < ARRAY_SIZE(da850_freq_table); i++) {
 982                 if (da850_freq_table[i].frequency <= da850_max_speed) {
 983                         cpufreq_info.freq_table = &da850_freq_table[i];
 984                         break;
 985                 }
 986         }
 987
 988         return platform_device_register(&da850_cpufreq_device);
 989 }
 990
 991 static int da850_round_armrate(struct clk *clk, unsigned long rate)
 992 {
 993         int i, ret = 0, diff;
 994         unsigned int best = (unsigned int) -1;
 995         struct cpufreq_frequency_table *table = cpufreq_info.freq_table;
 996
 997         rate /= 1000; /* convert to kHz */
 998
 999         for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
1000                 diff = table[i].frequency - rate;
1001                 if (diff < 0)
1002                         diff = -diff;
1003
1004                 if (diff < best) {
1005                         best = diff;
1006                         ret = table[i].frequency;
1007                 }
1008         }
1009
1010         return ret * 1000;
1011 }
1012
1013 static int da850_set_armrate(struct clk *clk, unsigned long index)
1014 {
1015         struct clk *pllclk = &pll0_clk;
1016
1017         return clk_set_rate(pllclk, index);
1018 }
1019
1020 static int da850_set_pll0rate(struct clk *clk, unsigned long index)
1021 {
1022         unsigned int prediv, mult, postdiv;
1023         struct da850_opp *opp;
1024         struct pll_data *pll = clk->pll_data;
1025         int ret;
1026
1027         opp = (struct da850_opp *) cpufreq_info.freq_table[index].index;
1028         prediv = opp->prediv;
1029         mult = opp->mult;
1030         postdiv = opp->postdiv;
1031
1032         ret = davinci_set_pllrate(pll, prediv, mult, postdiv);
1033         if (WARN_ON(ret))
1034                 return ret;
1035
1036         return 0;
1037 }
1038 #else
1039 int __init da850_register_cpufreq(char *async_clk)
1040 {
1041         return 0;
1042 }
1043
1044 static int da850_set_armrate(struct clk *clk, unsigned long rate)
1045 {
1046         return -EINVAL;
1047 }
1048
1049 static int da850_set_pll0rate(struct clk *clk, unsigned long armrate)
1050 {
1051         return -EINVAL;
1052 }
1053
1054 static int da850_round_armrate(struct clk *clk, unsigned long rate)
1055 {
1056         return clk->rate;
1057 }
1058 #endif
1059
1060 int da850_register_pm(struct platform_device *pdev)
1061 {
1062         int ret;
1063         struct davinci_pm_config *pdata = pdev->dev.platform_data;
1064
1065         ret = davinci_cfg_reg(DA850_RTC_ALARM);
1066         if (ret)
1067                 return ret;
1068
1069         pdata->ddr2_ctlr_base = da8xx_get_mem_ctlr();
1070         pdata->deepsleep_reg = DA8XX_SYSCFG1_VIRT(DA8XX_DEEPSLEEP_REG);
1071         pdata->ddrpsc_num = DA8XX_LPSC1_EMIF3C;
1072
1073         pdata->cpupll_reg_base = ioremap(DA8XX_PLL0_BASE, SZ_4K);
1074         if (!pdata->cpupll_reg_base)
1075                 return -ENOMEM;
1076
1077         pdata->ddrpll_reg_base = ioremap(DA850_PLL1_BASE, SZ_4K);
1078         if (!pdata->ddrpll_reg_base) {
1079                 ret = -ENOMEM;
1080                 goto no_ddrpll_mem;
1081         }
1082
1083         pdata->ddrpsc_reg_base = ioremap(DA8XX_PSC1_BASE, SZ_4K);
1084         if (!pdata->ddrpsc_reg_base) {
1085                 ret = -ENOMEM;
1086                 goto no_ddrpsc_mem;
1087         }
1088
1089         return platform_device_register(pdev);
1090
1091 no_ddrpsc_mem:
1092         iounmap(pdata->ddrpll_reg_base);
1093 no_ddrpll_mem:
1094         iounmap(pdata->cpupll_reg_base);
1095         return ret;
1096 }
1097
1098 static struct davinci_soc_info davinci_soc_info_da850 = {
1099         .io_desc                = da850_io_desc,
1100         .io_desc_num            = ARRAY_SIZE(da850_io_desc),
1101         .jtag_id_reg            = DA8XX_SYSCFG0_BASE + DA8XX_JTAG_ID_REG,
1102         .ids                    = da850_ids,
1103         .ids_num                = ARRAY_SIZE(da850_ids),
1104         .cpu_clks               = da850_clks,
1105         .psc_bases              = da850_psc_bases,
1106         .psc_bases_num          = ARRAY_SIZE(da850_psc_bases),
1107         .pinmux_base            = DA8XX_SYSCFG0_BASE + 0x120,
1108         .pinmux_pins            = da850_pins,
1109         .pinmux_pins_num        = ARRAY_SIZE(da850_pins),
1110         .intc_base              = DA8XX_CP_INTC_BASE,
1111         .intc_type              = DAVINCI_INTC_TYPE_CP_INTC,
1112         .intc_irq_prios         = da850_default_priorities,
1113         .intc_irq_num           = DA850_N_CP_INTC_IRQ,
1114         .timer_info             = &da850_timer_info,
1115         .gpio_type              = GPIO_TYPE_DAVINCI,
1116         .gpio_base              = DA8XX_GPIO_BASE,
1117         .gpio_num               = 144,
1118         .gpio_irq               = IRQ_DA8XX_GPIO0,
1119         .serial_dev             = &da8xx_serial_device,
1120         .emac_pdata             = &da8xx_emac_pdata,
1121         .sram_dma               = DA8XX_ARM_RAM_BASE,
1122         .sram_len               = SZ_8K,
1123         .reset_device           = &da8xx_wdt_device,
1124 };
1125
1126 void __init da850_init(void)
1127 {
1128         unsigned int v;
1129
1130         davinci_common_init(&davinci_soc_info_da850);
1131
1132         da8xx_syscfg0_base = ioremap(DA8XX_SYSCFG0_BASE, SZ_4K);
1133         if (WARN(!da8xx_syscfg0_base, "Unable to map syscfg0 module"))
1134                 return;
1135
1136         da8xx_syscfg1_base = ioremap(DA8XX_SYSCFG1_BASE, SZ_4K);
1137         if (WARN(!da8xx_syscfg1_base, "Unable to map syscfg1 module"))
1138                 return;
1139
1140         /*
1141          * Move the clock source of Async3 domain to PLL1 SYSCLK2.
1142          * This helps keeping the peripherals on this domain insulated
1143          * from CPU frequency changes caused by DVFS. The firmware sets
1144          * both PLL0 and PLL1 to the same frequency so, there should not
1145          * be any noticeable change even in non-DVFS use cases.
1146          */
1147         da850_set_async3_src(1);
1148
1149         /* Unlock writing to PLL0 registers */
1150         v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
1151         v &= ~CFGCHIP0_PLL_MASTER_LOCK;
1152         __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
1153
1154         /* Unlock writing to PLL1 registers */
1155         v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
1156         v &= ~CFGCHIP3_PLL1_MASTER_LOCK;
1157         __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
1158 }