arch/arm/mach-spear3xx/spear320.c

   1 /*
   2  * arch/arm/mach-spear3xx/spear320.c
   3  *
   4  * SPEAr320 machine source file
   5  *
   6  * Copyright (C) 2009 ST Microelectronics
   7  * Viresh Kumar<viresh.kumar@st.com>
   8  *
   9  * This file is licensed under the terms of the GNU General Public
  10  * License version 2. This program is licensed "as is" without any
  11  * warranty of any kind, whether express or implied.
  12  */
  13
  14 #include <linux/ptrace.h>
  15 #include <asm/irq.h>
  16 #include <plat/shirq.h>
  17 #include <mach/generic.h>
  18 #include <mach/hardware.h>
  19
  20 /* pad multiplexing support */
  21 /* muxing registers */
  22 #define PAD_MUX_CONFIG_REG      0x0C
  23 #define MODE_CONFIG_REG         0x10
  24
  25 /* modes */
  26 #define AUTO_NET_SMII_MODE      (1 << 0)
  27 #define AUTO_NET_MII_MODE       (1 << 1)
  28 #define AUTO_EXP_MODE           (1 << 2)
  29 #define SMALL_PRINTERS_MODE     (1 << 3)
  30 #define ALL_MODES               0xF
  31
  32 struct pmx_mode spear320_auto_net_smii_mode = {
  33         .id = AUTO_NET_SMII_MODE,
  34         .name = "Automation Networking SMII Mode",
  35         .mask = 0x00,
  36 };
  37
  38 struct pmx_mode spear320_auto_net_mii_mode = {
  39         .id = AUTO_NET_MII_MODE,
  40         .name = "Automation Networking MII Mode",
  41         .mask = 0x01,
  42 };
  43
  44 struct pmx_mode spear320_auto_exp_mode = {
  45         .id = AUTO_EXP_MODE,
  46         .name = "Automation Expanded Mode",
  47         .mask = 0x02,
  48 };
  49
  50 struct pmx_mode spear320_small_printers_mode = {
  51         .id = SMALL_PRINTERS_MODE,
  52         .name = "Small Printers Mode",
  53         .mask = 0x03,
  54 };
  55
  56 /* devices */
  57 static struct pmx_dev_mode pmx_clcd_modes[] = {
  58         {
  59                 .ids = AUTO_NET_SMII_MODE,
  60                 .mask = 0x0,
  61         },
  62 };
  63
  64 struct pmx_dev spear320_pmx_clcd = {
  65         .name = "clcd",
  66         .modes = pmx_clcd_modes,
  67         .mode_count = ARRAY_SIZE(pmx_clcd_modes),
  68         .enb_on_reset = 1,
  69 };
  70
  71 static struct pmx_dev_mode pmx_emi_modes[] = {
  72         {
  73                 .ids = AUTO_EXP_MODE,
  74                 .mask = PMX_TIMER_1_2_MASK | PMX_TIMER_3_4_MASK,
  75         },
  76 };
  77
  78 struct pmx_dev spear320_pmx_emi = {
  79         .name = "emi",
  80         .modes = pmx_emi_modes,
  81         .mode_count = ARRAY_SIZE(pmx_emi_modes),
  82         .enb_on_reset = 1,
  83 };
  84
  85 static struct pmx_dev_mode pmx_fsmc_modes[] = {
  86         {
  87                 .ids = ALL_MODES,
  88                 .mask = 0x0,
  89         },
  90 };
  91
  92 struct pmx_dev spear320_pmx_fsmc = {
  93         .name = "fsmc",
  94         .modes = pmx_fsmc_modes,
  95         .mode_count = ARRAY_SIZE(pmx_fsmc_modes),
  96         .enb_on_reset = 1,
  97 };
  98
  99 static struct pmx_dev_mode pmx_spp_modes[] = {
 100         {
 101                 .ids = SMALL_PRINTERS_MODE,
 102                 .mask = 0x0,
 103         },
 104 };
 105
 106 struct pmx_dev spear320_pmx_spp = {
 107         .name = "spp",
 108         .modes = pmx_spp_modes,
 109         .mode_count = ARRAY_SIZE(pmx_spp_modes),
 110         .enb_on_reset = 1,
 111 };
 112
 113 static struct pmx_dev_mode pmx_sdhci_modes[] = {
 114         {
 115                 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE |
 116                         SMALL_PRINTERS_MODE,
 117                 .mask = PMX_TIMER_1_2_MASK | PMX_TIMER_3_4_MASK,
 118         },
 119 };
 120
 121 struct pmx_dev spear320_pmx_sdhci = {
 122         .name = "sdhci",
 123         .modes = pmx_sdhci_modes,
 124         .mode_count = ARRAY_SIZE(pmx_sdhci_modes),
 125         .enb_on_reset = 1,
 126 };
 127
 128 static struct pmx_dev_mode pmx_i2s_modes[] = {
 129         {
 130                 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE,
 131                 .mask = PMX_UART0_MODEM_MASK,
 132         },
 133 };
 134
 135 struct pmx_dev spear320_pmx_i2s = {
 136         .name = "i2s",
 137         .modes = pmx_i2s_modes,
 138         .mode_count = ARRAY_SIZE(pmx_i2s_modes),
 139         .enb_on_reset = 1,
 140 };
 141
 142 static struct pmx_dev_mode pmx_uart1_modes[] = {
 143         {
 144                 .ids = ALL_MODES,
 145                 .mask = PMX_GPIO_PIN0_MASK | PMX_GPIO_PIN1_MASK,
 146         },
 147 };
 148
 149 struct pmx_dev spear320_pmx_uart1 = {
 150         .name = "uart1",
 151         .modes = pmx_uart1_modes,
 152         .mode_count = ARRAY_SIZE(pmx_uart1_modes),
 153         .enb_on_reset = 1,
 154 };
 155
 156 static struct pmx_dev_mode pmx_uart1_modem_modes[] = {
 157         {
 158                 .ids = AUTO_EXP_MODE,
 159                 .mask = PMX_TIMER_1_2_MASK | PMX_TIMER_3_4_MASK |
 160                         PMX_SSP_CS_MASK,
 161         }, {
 162                 .ids = SMALL_PRINTERS_MODE,
 163                 .mask = PMX_GPIO_PIN3_MASK | PMX_GPIO_PIN4_MASK |
 164                         PMX_GPIO_PIN5_MASK | PMX_SSP_CS_MASK,
 165         },
 166 };
 167
 168 struct pmx_dev spear320_pmx_uart1_modem = {
 169         .name = "uart1_modem",
 170         .modes = pmx_uart1_modem_modes,
 171         .mode_count = ARRAY_SIZE(pmx_uart1_modem_modes),
 172         .enb_on_reset = 1,
 173 };
 174
 175 static struct pmx_dev_mode pmx_uart2_modes[] = {
 176         {
 177                 .ids = ALL_MODES,
 178                 .mask = PMX_FIRDA_MASK,
 179         },
 180 };
 181
 182 struct pmx_dev spear320_pmx_uart2 = {
 183         .name = "uart2",
 184         .modes = pmx_uart2_modes,
 185         .mode_count = ARRAY_SIZE(pmx_uart2_modes),
 186         .enb_on_reset = 1,
 187 };
 188
 189 static struct pmx_dev_mode pmx_touchscreen_modes[] = {
 190         {
 191                 .ids = AUTO_NET_SMII_MODE,
 192                 .mask = PMX_SSP_CS_MASK,
 193         },
 194 };
 195
 196 struct pmx_dev spear320_pmx_touchscreen = {
 197         .name = "touchscreen",
 198         .modes = pmx_touchscreen_modes,
 199         .mode_count = ARRAY_SIZE(pmx_touchscreen_modes),
 200         .enb_on_reset = 1,
 201 };
 202
 203 static struct pmx_dev_mode pmx_can_modes[] = {
 204         {
 205                 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE | AUTO_EXP_MODE,
 206                 .mask = PMX_GPIO_PIN2_MASK | PMX_GPIO_PIN3_MASK |
 207                         PMX_GPIO_PIN4_MASK | PMX_GPIO_PIN5_MASK,
 208         },
 209 };
 210
 211 struct pmx_dev spear320_pmx_can = {
 212         .name = "can",
 213         .modes = pmx_can_modes,
 214         .mode_count = ARRAY_SIZE(pmx_can_modes),
 215         .enb_on_reset = 1,
 216 };
 217
 218 static struct pmx_dev_mode pmx_sdhci_led_modes[] = {
 219         {
 220                 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE,
 221                 .mask = PMX_SSP_CS_MASK,
 222         },
 223 };
 224
 225 struct pmx_dev spear320_pmx_sdhci_led = {
 226         .name = "sdhci_led",
 227         .modes = pmx_sdhci_led_modes,
 228         .mode_count = ARRAY_SIZE(pmx_sdhci_led_modes),
 229         .enb_on_reset = 1,
 230 };
 231
 232 static struct pmx_dev_mode pmx_pwm0_modes[] = {
 233         {
 234                 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE,
 235                 .mask = PMX_UART0_MODEM_MASK,
 236         }, {
 237                 .ids = AUTO_EXP_MODE | SMALL_PRINTERS_MODE,
 238                 .mask = PMX_MII_MASK,
 239         },
 240 };
 241
 242 struct pmx_dev spear320_pmx_pwm0 = {
 243         .name = "pwm0",
 244         .modes = pmx_pwm0_modes,
 245         .mode_count = ARRAY_SIZE(pmx_pwm0_modes),
 246         .enb_on_reset = 1,
 247 };
 248
 249 static struct pmx_dev_mode pmx_pwm1_modes[] = {
 250         {
 251                 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE,
 252                 .mask = PMX_UART0_MODEM_MASK,
 253         }, {
 254                 .ids = AUTO_EXP_MODE | SMALL_PRINTERS_MODE,
 255                 .mask = PMX_MII_MASK,
 256         },
 257 };
 258
 259 struct pmx_dev spear320_pmx_pwm1 = {
 260         .name = "pwm1",
 261         .modes = pmx_pwm1_modes,
 262         .mode_count = ARRAY_SIZE(pmx_pwm1_modes),
 263         .enb_on_reset = 1,
 264 };
 265
 266 static struct pmx_dev_mode pmx_pwm2_modes[] = {
 267         {
 268                 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE,
 269                 .mask = PMX_SSP_CS_MASK,
 270         }, {
 271                 .ids = AUTO_EXP_MODE | SMALL_PRINTERS_MODE,
 272                 .mask = PMX_MII_MASK,
 273         },
 274 };
 275
 276 struct pmx_dev spear320_pmx_pwm2 = {
 277         .name = "pwm2",
 278         .modes = pmx_pwm2_modes,
 279         .mode_count = ARRAY_SIZE(pmx_pwm2_modes),
 280         .enb_on_reset = 1,
 281 };
 282
 283 static struct pmx_dev_mode pmx_pwm3_modes[] = {
 284         {
 285                 .ids = AUTO_EXP_MODE | SMALL_PRINTERS_MODE | AUTO_NET_SMII_MODE,
 286                 .mask = PMX_MII_MASK,
 287         },
 288 };
 289
 290 struct pmx_dev spear320_pmx_pwm3 = {
 291         .name = "pwm3",
 292         .modes = pmx_pwm3_modes,
 293         .mode_count = ARRAY_SIZE(pmx_pwm3_modes),
 294         .enb_on_reset = 1,
 295 };
 296
 297 static struct pmx_dev_mode pmx_ssp1_modes[] = {
 298         {
 299                 .ids = SMALL_PRINTERS_MODE | AUTO_NET_SMII_MODE,
 300                 .mask = PMX_MII_MASK,
 301         },
 302 };
 303
 304 struct pmx_dev spear320_pmx_ssp1 = {
 305         .name = "ssp1",
 306         .modes = pmx_ssp1_modes,
 307         .mode_count = ARRAY_SIZE(pmx_ssp1_modes),
 308         .enb_on_reset = 1,
 309 };
 310
 311 static struct pmx_dev_mode pmx_ssp2_modes[] = {
 312         {
 313                 .ids = AUTO_NET_SMII_MODE,
 314                 .mask = PMX_MII_MASK,
 315         },
 316 };
 317
 318 struct pmx_dev spear320_pmx_ssp2 = {
 319         .name = "ssp2",
 320         .modes = pmx_ssp2_modes,
 321         .mode_count = ARRAY_SIZE(pmx_ssp2_modes),
 322         .enb_on_reset = 1,
 323 };
 324
 325 static struct pmx_dev_mode pmx_mii1_modes[] = {
 326         {
 327                 .ids = AUTO_NET_MII_MODE,
 328                 .mask = 0x0,
 329         },
 330 };
 331
 332 struct pmx_dev spear320_pmx_mii1 = {
 333         .name = "mii1",
 334         .modes = pmx_mii1_modes,
 335         .mode_count = ARRAY_SIZE(pmx_mii1_modes),
 336         .enb_on_reset = 1,
 337 };
 338
 339 static struct pmx_dev_mode pmx_smii0_modes[] = {
 340         {
 341                 .ids = AUTO_NET_SMII_MODE | AUTO_EXP_MODE | SMALL_PRINTERS_MODE,
 342                 .mask = PMX_MII_MASK,
 343         },
 344 };
 345
 346 struct pmx_dev spear320_pmx_smii0 = {
 347         .name = "smii0",
 348         .modes = pmx_smii0_modes,
 349         .mode_count = ARRAY_SIZE(pmx_smii0_modes),
 350         .enb_on_reset = 1,
 351 };
 352
 353 static struct pmx_dev_mode pmx_smii1_modes[] = {
 354         {
 355                 .ids = AUTO_NET_SMII_MODE | SMALL_PRINTERS_MODE,
 356                 .mask = PMX_MII_MASK,
 357         },
 358 };
 359
 360 struct pmx_dev spear320_pmx_smii1 = {
 361         .name = "smii1",
 362         .modes = pmx_smii1_modes,
 363         .mode_count = ARRAY_SIZE(pmx_smii1_modes),
 364         .enb_on_reset = 1,
 365 };
 366
 367 static struct pmx_dev_mode pmx_i2c1_modes[] = {
 368         {
 369                 .ids = AUTO_EXP_MODE,
 370                 .mask = 0x0,
 371         },
 372 };
 373
 374 struct pmx_dev spear320_pmx_i2c1 = {
 375         .name = "i2c1",
 376         .modes = pmx_i2c1_modes,
 377         .mode_count = ARRAY_SIZE(pmx_i2c1_modes),
 378         .enb_on_reset = 1,
 379 };
 380
 381 /* pmx driver structure */
 382 static struct pmx_driver pmx_driver = {
 383         .mode_reg = {.offset = MODE_CONFIG_REG, .mask = 0x00000007},
 384         .mux_reg = {.offset = PAD_MUX_CONFIG_REG, .mask = 0x00007fff},
 385 };
 386
 387 /* spear3xx shared irq */
 388 static struct shirq_dev_config shirq_ras1_config[] = {
 389         {
 390                 .virq = SPEAR320_VIRQ_EMI,
 391                 .status_mask = SPEAR320_EMI_IRQ_MASK,
 392                 .clear_mask = SPEAR320_EMI_IRQ_MASK,
 393         }, {
 394                 .virq = SPEAR320_VIRQ_CLCD,
 395                 .status_mask = SPEAR320_CLCD_IRQ_MASK,
 396                 .clear_mask = SPEAR320_CLCD_IRQ_MASK,
 397         }, {
 398                 .virq = SPEAR320_VIRQ_SPP,
 399                 .status_mask = SPEAR320_SPP_IRQ_MASK,
 400                 .clear_mask = SPEAR320_SPP_IRQ_MASK,
 401         },
 402 };
 403
 404 static struct spear_shirq shirq_ras1 = {
 405         .irq = SPEAR3XX_IRQ_GEN_RAS_1,
 406         .dev_config = shirq_ras1_config,
 407         .dev_count = ARRAY_SIZE(shirq_ras1_config),
 408         .regs = {
 409                 .enb_reg = -1,
 410                 .status_reg = SPEAR320_INT_STS_MASK_REG,
 411                 .status_reg_mask = SPEAR320_SHIRQ_RAS1_MASK,
 412                 .clear_reg = SPEAR320_INT_CLR_MASK_REG,
 413                 .reset_to_clear = 1,
 414         },
 415 };
 416
 417 static struct shirq_dev_config shirq_ras3_config[] = {
 418         {
 419                 .virq = SPEAR320_VIRQ_PLGPIO,
 420                 .enb_mask = SPEAR320_GPIO_IRQ_MASK,
 421                 .status_mask = SPEAR320_GPIO_IRQ_MASK,
 422                 .clear_mask = SPEAR320_GPIO_IRQ_MASK,
 423         }, {
 424                 .virq = SPEAR320_VIRQ_I2S_PLAY,
 425                 .enb_mask = SPEAR320_I2S_PLAY_IRQ_MASK,
 426                 .status_mask = SPEAR320_I2S_PLAY_IRQ_MASK,
 427                 .clear_mask = SPEAR320_I2S_PLAY_IRQ_MASK,
 428         }, {
 429                 .virq = SPEAR320_VIRQ_I2S_REC,
 430                 .enb_mask = SPEAR320_I2S_REC_IRQ_MASK,
 431                 .status_mask = SPEAR320_I2S_REC_IRQ_MASK,
 432                 .clear_mask = SPEAR320_I2S_REC_IRQ_MASK,
 433         },
 434 };
 435
 436 static struct spear_shirq shirq_ras3 = {
 437         .irq = SPEAR3XX_IRQ_GEN_RAS_3,
 438         .dev_config = shirq_ras3_config,
 439         .dev_count = ARRAY_SIZE(shirq_ras3_config),
 440         .regs = {
 441                 .enb_reg = SPEAR320_INT_ENB_MASK_REG,
 442                 .reset_to_enb = 1,
 443                 .status_reg = SPEAR320_INT_STS_MASK_REG,
 444                 .status_reg_mask = SPEAR320_SHIRQ_RAS3_MASK,
 445                 .clear_reg = SPEAR320_INT_CLR_MASK_REG,
 446                 .reset_to_clear = 1,
 447         },
 448 };
 449
 450 static struct shirq_dev_config shirq_intrcomm_ras_config[] = {
 451         {
 452                 .virq = SPEAR320_VIRQ_CANU,
 453                 .status_mask = SPEAR320_CAN_U_IRQ_MASK,
 454                 .clear_mask = SPEAR320_CAN_U_IRQ_MASK,
 455         }, {
 456                 .virq = SPEAR320_VIRQ_CANL,
 457                 .status_mask = SPEAR320_CAN_L_IRQ_MASK,
 458                 .clear_mask = SPEAR320_CAN_L_IRQ_MASK,
 459         }, {
 460                 .virq = SPEAR320_VIRQ_UART1,
 461                 .status_mask = SPEAR320_UART1_IRQ_MASK,
 462                 .clear_mask = SPEAR320_UART1_IRQ_MASK,
 463         }, {
 464                 .virq = SPEAR320_VIRQ_UART2,
 465                 .status_mask = SPEAR320_UART2_IRQ_MASK,
 466                 .clear_mask = SPEAR320_UART2_IRQ_MASK,
 467         }, {
 468                 .virq = SPEAR320_VIRQ_SSP1,
 469                 .status_mask = SPEAR320_SSP1_IRQ_MASK,
 470                 .clear_mask = SPEAR320_SSP1_IRQ_MASK,
 471         }, {
 472                 .virq = SPEAR320_VIRQ_SSP2,
 473                 .status_mask = SPEAR320_SSP2_IRQ_MASK,
 474                 .clear_mask = SPEAR320_SSP2_IRQ_MASK,
 475         }, {
 476                 .virq = SPEAR320_VIRQ_SMII0,
 477                 .status_mask = SPEAR320_SMII0_IRQ_MASK,
 478                 .clear_mask = SPEAR320_SMII0_IRQ_MASK,
 479         }, {
 480                 .virq = SPEAR320_VIRQ_MII1_SMII1,
 481                 .status_mask = SPEAR320_MII1_SMII1_IRQ_MASK,
 482                 .clear_mask = SPEAR320_MII1_SMII1_IRQ_MASK,
 483         }, {
 484                 .virq = SPEAR320_VIRQ_WAKEUP_SMII0,
 485                 .status_mask = SPEAR320_WAKEUP_SMII0_IRQ_MASK,
 486                 .clear_mask = SPEAR320_WAKEUP_SMII0_IRQ_MASK,
 487         }, {
 488                 .virq = SPEAR320_VIRQ_WAKEUP_MII1_SMII1,
 489                 .status_mask = SPEAR320_WAKEUP_MII1_SMII1_IRQ_MASK,
 490                 .clear_mask = SPEAR320_WAKEUP_MII1_SMII1_IRQ_MASK,
 491         }, {
 492                 .virq = SPEAR320_VIRQ_I2C1,
 493                 .status_mask = SPEAR320_I2C1_IRQ_MASK,
 494                 .clear_mask = SPEAR320_I2C1_IRQ_MASK,
 495         },
 496 };
 497
 498 static struct spear_shirq shirq_intrcomm_ras = {
 499         .irq = SPEAR3XX_IRQ_INTRCOMM_RAS_ARM,
 500         .dev_config = shirq_intrcomm_ras_config,
 501         .dev_count = ARRAY_SIZE(shirq_intrcomm_ras_config),
 502         .regs = {
 503                 .enb_reg = -1,
 504                 .status_reg = SPEAR320_INT_STS_MASK_REG,
 505                 .status_reg_mask = SPEAR320_SHIRQ_INTRCOMM_RAS_MASK,
 506                 .clear_reg = SPEAR320_INT_CLR_MASK_REG,
 507                 .reset_to_clear = 1,
 508         },
 509 };
 510
 511 /* Add spear320 specific devices here */
 512
 513 /* spear320 routines */
 514 void __init spear320_init(struct pmx_mode *pmx_mode, struct pmx_dev **pmx_devs,
 515                 u8 pmx_dev_count)
 516 {
 517         void __iomem *base;
 518         int ret = 0;
 519
 520         /* call spear3xx family common init function */
 521         spear3xx_init();
 522
 523         /* shared irq registration */
 524         base = ioremap(SPEAR320_SOC_CONFIG_BASE, SZ_4K);
 525         if (base) {
 526                 /* shirq 1 */
 527                 shirq_ras1.regs.base = base;
 528                 ret = spear_shirq_register(&shirq_ras1);
 529                 if (ret)
 530                         printk(KERN_ERR "Error registering Shared IRQ 1\n");
 531
 532                 /* shirq 3 */
 533                 shirq_ras3.regs.base = base;
 534                 ret = spear_shirq_register(&shirq_ras3);
 535                 if (ret)
 536                         printk(KERN_ERR "Error registering Shared IRQ 3\n");
 537
 538                 /* shirq 4 */
 539                 shirq_intrcomm_ras.regs.base = base;
 540                 ret = spear_shirq_register(&shirq_intrcomm_ras);
 541                 if (ret)
 542                         printk(KERN_ERR "Error registering Shared IRQ 4\n");
 543         }
 544
 545         /* pmx initialization */
 546         pmx_driver.base = base;
 547         pmx_driver.mode = pmx_mode;
 548         pmx_driver.devs = pmx_devs;
 549         pmx_driver.devs_count = pmx_dev_count;
 550
 551         ret = pmx_register(&pmx_driver);
 552         if (ret)
 553                 printk(KERN_ERR "padmux: registeration failed. err no: %d\n",
 554                                 ret);
 555 }