git.oblomov.eu Git - linux-2.6/blob - arch/avr32/mach-at32ap/at32ap7000.c

   1 /*
   2  * Copyright (C) 2005-2006 Atmel Corporation
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8 #include <linux/clk.h>
   9 #include <linux/init.h>
  10 #include <linux/platform_device.h>
  11
  12 #include <asm/io.h>
  13
  14 #include <asm/arch/at32ap7000.h>
  15 #include <asm/arch/board.h>
  16 #include <asm/arch/portmux.h>
  17 #include <asm/arch/sm.h>
  18
  19 #include "clock.h"
  20 #include "pio.h"
  21 #include "sm.h"
  22
  23 #define PBMEM(base)                                     \
  24         {                                               \
  25                 .start          = base,                 \
  26                 .end            = base + 0x3ff,         \
  27                 .flags          = IORESOURCE_MEM,       \
  28         }
  29 #define IRQ(num)                                        \
  30         {                                               \
  31                 .start          = num,                  \
  32                 .end            = num,                  \
  33                 .flags          = IORESOURCE_IRQ,       \
  34         }
  35 #define NAMED_IRQ(num, _name)                           \
  36         {                                               \
  37                 .start          = num,                  \
  38                 .end            = num,                  \
  39                 .name           = _name,                \
  40                 .flags          = IORESOURCE_IRQ,       \
  41         }
  42
  43 #define DEFINE_DEV(_name, _id)                                  \
  44 static struct platform_device _name##_id##_device = {           \
  45         .name           = #_name,                               \
  46         .id             = _id,                                  \
  47         .resource       = _name##_id##_resource,                \
  48         .num_resources  = ARRAY_SIZE(_name##_id##_resource),    \
  49 }
  50 #define DEFINE_DEV_DATA(_name, _id)                             \
  51 static struct platform_device _name##_id##_device = {           \
  52         .name           = #_name,                               \
  53         .id             = _id,                                  \
  54         .dev            = {                                     \
  55                 .platform_data  = &_name##_id##_data,           \
  56         },                                                      \
  57         .resource       = _name##_id##_resource,                \
  58         .num_resources  = ARRAY_SIZE(_name##_id##_resource),    \
  59 }
  60
  61 #define select_peripheral(pin, periph, flags)                   \
  62         at32_select_periph(GPIO_PIN_##pin, GPIO_##periph, flags)
  63
  64 #define DEV_CLK(_name, devname, bus, _index)                    \
  65 static struct clk devname##_##_name = {                         \
  66         .name           = #_name,                               \
  67         .dev            = &devname##_device.dev,                \
  68         .parent         = &bus##_clk,                           \
  69         .mode           = bus##_clk_mode,                       \
  70         .get_rate       = bus##_clk_get_rate,                   \
  71         .index          = _index,                               \
  72 }
  73
  74 unsigned long at32ap7000_osc_rates[3] = {
  75         [0] = 32768,
  76         /* FIXME: these are ATSTK1002-specific */
  77         [1] = 20000000,
  78         [2] = 12000000,
  79 };
  80
  81 static unsigned long osc_get_rate(struct clk *clk)
  82 {
  83         return at32ap7000_osc_rates[clk->index];
  84 }
  85
  86 static unsigned long pll_get_rate(struct clk *clk, unsigned long control)
  87 {
  88         unsigned long div, mul, rate;
  89
  90         if (!(control & SM_BIT(PLLEN)))
  91                 return 0;
  92
  93         div = SM_BFEXT(PLLDIV, control) + 1;
  94         mul = SM_BFEXT(PLLMUL, control) + 1;
  95
  96         rate = clk->parent->get_rate(clk->parent);
  97         rate = (rate + div / 2) / div;
  98         rate *= mul;
  99
 100         return rate;
 101 }
 102
 103 static unsigned long pll0_get_rate(struct clk *clk)
 104 {
 105         u32 control;
 106
 107         control = sm_readl(&system_manager, PM_PLL0);
 108
 109         return pll_get_rate(clk, control);
 110 }
 111
 112 static unsigned long pll1_get_rate(struct clk *clk)
 113 {
 114         u32 control;
 115
 116         control = sm_readl(&system_manager, PM_PLL1);
 117
 118         return pll_get_rate(clk, control);
 119 }
 120
 121 /*
 122  * The AT32AP7000 has five primary clock sources: One 32kHz
 123  * oscillator, two crystal oscillators and two PLLs.
 124  */
 125 static struct clk osc32k = {
 126         .name           = "osc32k",
 127         .get_rate       = osc_get_rate,
 128         .users          = 1,
 129         .index          = 0,
 130 };
 131 static struct clk osc0 = {
 132         .name           = "osc0",
 133         .get_rate       = osc_get_rate,
 134         .users          = 1,
 135         .index          = 1,
 136 };
 137 static struct clk osc1 = {
 138         .name           = "osc1",
 139         .get_rate       = osc_get_rate,
 140         .index          = 2,
 141 };
 142 static struct clk pll0 = {
 143         .name           = "pll0",
 144         .get_rate       = pll0_get_rate,
 145         .parent         = &osc0,
 146 };
 147 static struct clk pll1 = {
 148         .name           = "pll1",
 149         .get_rate       = pll1_get_rate,
 150         .parent         = &osc0,
 151 };
 152
 153 /*
 154  * The main clock can be either osc0 or pll0.  The boot loader may
 155  * have chosen one for us, so we don't really know which one until we
 156  * have a look at the SM.
 157  */
 158 static struct clk *main_clock;
 159
 160 /*
 161  * Synchronous clocks are generated from the main clock. The clocks
 162  * must satisfy the constraint
 163  *   fCPU >= fHSB >= fPB
 164  * i.e. each clock must not be faster than its parent.
 165  */
 166 static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift)
 167 {
 168         return main_clock->get_rate(main_clock) >> shift;
 169 };
 170
 171 static void cpu_clk_mode(struct clk *clk, int enabled)
 172 {
 173         struct at32_sm *sm = &system_manager;
 174         unsigned long flags;
 175         u32 mask;
 176
 177         spin_lock_irqsave(&sm->lock, flags);
 178         mask = sm_readl(sm, PM_CPU_MASK);
 179         if (enabled)
 180                 mask |= 1 << clk->index;
 181         else
 182                 mask &= ~(1 << clk->index);
 183         sm_writel(sm, PM_CPU_MASK, mask);
 184         spin_unlock_irqrestore(&sm->lock, flags);
 185 }
 186
 187 static unsigned long cpu_clk_get_rate(struct clk *clk)
 188 {
 189         unsigned long cksel, shift = 0;
 190
 191         cksel = sm_readl(&system_manager, PM_CKSEL);
 192         if (cksel & SM_BIT(CPUDIV))
 193                 shift = SM_BFEXT(CPUSEL, cksel) + 1;
 194
 195         return bus_clk_get_rate(clk, shift);
 196 }
 197
 198 static void hsb_clk_mode(struct clk *clk, int enabled)
 199 {
 200         struct at32_sm *sm = &system_manager;
 201         unsigned long flags;
 202         u32 mask;
 203
 204         spin_lock_irqsave(&sm->lock, flags);
 205         mask = sm_readl(sm, PM_HSB_MASK);
 206         if (enabled)
 207                 mask |= 1 << clk->index;
 208         else
 209                 mask &= ~(1 << clk->index);
 210         sm_writel(sm, PM_HSB_MASK, mask);
 211         spin_unlock_irqrestore(&sm->lock, flags);
 212 }
 213
 214 static unsigned long hsb_clk_get_rate(struct clk *clk)
 215 {
 216         unsigned long cksel, shift = 0;
 217
 218         cksel = sm_readl(&system_manager, PM_CKSEL);
 219         if (cksel & SM_BIT(HSBDIV))
 220                 shift = SM_BFEXT(HSBSEL, cksel) + 1;
 221
 222         return bus_clk_get_rate(clk, shift);
 223 }
 224
 225 static void pba_clk_mode(struct clk *clk, int enabled)
 226 {
 227         struct at32_sm *sm = &system_manager;
 228         unsigned long flags;
 229         u32 mask;
 230
 231         spin_lock_irqsave(&sm->lock, flags);
 232         mask = sm_readl(sm, PM_PBA_MASK);
 233         if (enabled)
 234                 mask |= 1 << clk->index;
 235         else
 236                 mask &= ~(1 << clk->index);
 237         sm_writel(sm, PM_PBA_MASK, mask);
 238         spin_unlock_irqrestore(&sm->lock, flags);
 239 }
 240
 241 static unsigned long pba_clk_get_rate(struct clk *clk)
 242 {
 243         unsigned long cksel, shift = 0;
 244
 245         cksel = sm_readl(&system_manager, PM_CKSEL);
 246         if (cksel & SM_BIT(PBADIV))
 247                 shift = SM_BFEXT(PBASEL, cksel) + 1;
 248
 249         return bus_clk_get_rate(clk, shift);
 250 }
 251
 252 static void pbb_clk_mode(struct clk *clk, int enabled)
 253 {
 254         struct at32_sm *sm = &system_manager;
 255         unsigned long flags;
 256         u32 mask;
 257
 258         spin_lock_irqsave(&sm->lock, flags);
 259         mask = sm_readl(sm, PM_PBB_MASK);
 260         if (enabled)
 261                 mask |= 1 << clk->index;
 262         else
 263                 mask &= ~(1 << clk->index);
 264         sm_writel(sm, PM_PBB_MASK, mask);
 265         spin_unlock_irqrestore(&sm->lock, flags);
 266 }
 267
 268 static unsigned long pbb_clk_get_rate(struct clk *clk)
 269 {
 270         unsigned long cksel, shift = 0;
 271
 272         cksel = sm_readl(&system_manager, PM_CKSEL);
 273         if (cksel & SM_BIT(PBBDIV))
 274                 shift = SM_BFEXT(PBBSEL, cksel) + 1;
 275
 276         return bus_clk_get_rate(clk, shift);
 277 }
 278
 279 static struct clk cpu_clk = {
 280         .name           = "cpu",
 281         .get_rate       = cpu_clk_get_rate,
 282         .users          = 1,
 283 };
 284 static struct clk hsb_clk = {
 285         .name           = "hsb",
 286         .parent         = &cpu_clk,
 287         .get_rate       = hsb_clk_get_rate,
 288 };
 289 static struct clk pba_clk = {
 290         .name           = "pba",
 291         .parent         = &hsb_clk,
 292         .mode           = hsb_clk_mode,
 293         .get_rate       = pba_clk_get_rate,
 294         .index          = 1,
 295 };
 296 static struct clk pbb_clk = {
 297         .name           = "pbb",
 298         .parent         = &hsb_clk,
 299         .mode           = hsb_clk_mode,
 300         .get_rate       = pbb_clk_get_rate,
 301         .users          = 1,
 302         .index          = 2,
 303 };
 304
 305 /* --------------------------------------------------------------------
 306  *  Generic Clock operations
 307  * -------------------------------------------------------------------- */
 308
 309 static void genclk_mode(struct clk *clk, int enabled)
 310 {
 311         u32 control;
 312
 313         BUG_ON(clk->index > 7);
 314
 315         control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
 316         if (enabled)
 317                 control |= SM_BIT(CEN);
 318         else
 319                 control &= ~SM_BIT(CEN);
 320         sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, control);
 321 }
 322
 323 static unsigned long genclk_get_rate(struct clk *clk)
 324 {
 325         u32 control;
 326         unsigned long div = 1;
 327
 328         BUG_ON(clk->index > 7);
 329
 330         if (!clk->parent)
 331                 return 0;
 332
 333         control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
 334         if (control & SM_BIT(DIVEN))
 335                 div = 2 * (SM_BFEXT(DIV, control) + 1);
 336
 337         return clk->parent->get_rate(clk->parent) / div;
 338 }
 339
 340 static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply)
 341 {
 342         u32 control;
 343         unsigned long parent_rate, actual_rate, div;
 344
 345         BUG_ON(clk->index > 7);
 346
 347         if (!clk->parent)
 348                 return 0;
 349
 350         parent_rate = clk->parent->get_rate(clk->parent);
 351         control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
 352
 353         if (rate > 3 * parent_rate / 4) {
 354                 actual_rate = parent_rate;
 355                 control &= ~SM_BIT(DIVEN);
 356         } else {
 357                 div = (parent_rate + rate) / (2 * rate) - 1;
 358                 control = SM_BFINS(DIV, div, control) | SM_BIT(DIVEN);
 359                 actual_rate = parent_rate / (2 * (div + 1));
 360         }
 361
 362         printk("clk %s: new rate %lu (actual rate %lu)\n",
 363                clk->name, rate, actual_rate);
 364
 365         if (apply)
 366                 sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index,
 367                           control);
 368
 369         return actual_rate;
 370 }
 371
 372 int genclk_set_parent(struct clk *clk, struct clk *parent)
 373 {
 374         u32 control;
 375
 376         BUG_ON(clk->index > 7);
 377
 378         printk("clk %s: new parent %s (was %s)\n",
 379                clk->name, parent->name,
 380                clk->parent ? clk->parent->name : "(null)");
 381
 382         control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
 383
 384         if (parent == &osc1 || parent == &pll1)
 385                 control |= SM_BIT(OSCSEL);
 386         else if (parent == &osc0 || parent == &pll0)
 387                 control &= ~SM_BIT(OSCSEL);
 388         else
 389                 return -EINVAL;
 390
 391         if (parent == &pll0 || parent == &pll1)
 392                 control |= SM_BIT(PLLSEL);
 393         else
 394                 control &= ~SM_BIT(PLLSEL);
 395
 396         sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, control);
 397         clk->parent = parent;
 398
 399         return 0;
 400 }
 401
 402 /* --------------------------------------------------------------------
 403  *  System peripherals
 404  * -------------------------------------------------------------------- */
 405 static struct resource sm_resource[] = {
 406         PBMEM(0xfff00000),
 407         NAMED_IRQ(19, "eim"),
 408         NAMED_IRQ(20, "pm"),
 409         NAMED_IRQ(21, "rtc"),
 410 };
 411 struct platform_device at32_sm_device = {
 412         .name           = "sm",
 413         .id             = 0,
 414         .resource       = sm_resource,
 415         .num_resources  = ARRAY_SIZE(sm_resource),
 416 };
 417 DEV_CLK(pclk, at32_sm, pbb, 0);
 418
 419 static struct resource intc0_resource[] = {
 420         PBMEM(0xfff00400),
 421 };
 422 struct platform_device at32_intc0_device = {
 423         .name           = "intc",
 424         .id             = 0,
 425         .resource       = intc0_resource,
 426         .num_resources  = ARRAY_SIZE(intc0_resource),
 427 };
 428 DEV_CLK(pclk, at32_intc0, pbb, 1);
 429
 430 static struct clk ebi_clk = {
 431         .name           = "ebi",
 432         .parent         = &hsb_clk,
 433         .mode           = hsb_clk_mode,
 434         .get_rate       = hsb_clk_get_rate,
 435         .users          = 1,
 436 };
 437 static struct clk hramc_clk = {
 438         .name           = "hramc",
 439         .parent         = &hsb_clk,
 440         .mode           = hsb_clk_mode,
 441         .get_rate       = hsb_clk_get_rate,
 442         .users          = 1,
 443 };
 444
 445 static struct resource smc0_resource[] = {
 446         PBMEM(0xfff03400),
 447 };
 448 DEFINE_DEV(smc, 0);
 449 DEV_CLK(pclk, smc0, pbb, 13);
 450 DEV_CLK(mck, smc0, hsb, 0);
 451
 452 static struct platform_device pdc_device = {
 453         .name           = "pdc",
 454         .id             = 0,
 455 };
 456 DEV_CLK(hclk, pdc, hsb, 4);
 457 DEV_CLK(pclk, pdc, pba, 16);
 458
 459 static struct clk pico_clk = {
 460         .name           = "pico",
 461         .parent         = &cpu_clk,
 462         .mode           = cpu_clk_mode,
 463         .get_rate       = cpu_clk_get_rate,
 464         .users          = 1,
 465 };
 466
 467 /* --------------------------------------------------------------------
 468  *  PIO
 469  * -------------------------------------------------------------------- */
 470
 471 static struct resource pio0_resource[] = {
 472         PBMEM(0xffe02800),
 473         IRQ(13),
 474 };
 475 DEFINE_DEV(pio, 0);
 476 DEV_CLK(mck, pio0, pba, 10);
 477
 478 static struct resource pio1_resource[] = {
 479         PBMEM(0xffe02c00),
 480         IRQ(14),
 481 };
 482 DEFINE_DEV(pio, 1);
 483 DEV_CLK(mck, pio1, pba, 11);
 484
 485 static struct resource pio2_resource[] = {
 486         PBMEM(0xffe03000),
 487         IRQ(15),
 488 };
 489 DEFINE_DEV(pio, 2);
 490 DEV_CLK(mck, pio2, pba, 12);
 491
 492 static struct resource pio3_resource[] = {
 493         PBMEM(0xffe03400),
 494         IRQ(16),
 495 };
 496 DEFINE_DEV(pio, 3);
 497 DEV_CLK(mck, pio3, pba, 13);
 498
 499 static struct resource pio4_resource[] = {
 500         PBMEM(0xffe03800),
 501         IRQ(17),
 502 };
 503 DEFINE_DEV(pio, 4);
 504 DEV_CLK(mck, pio4, pba, 14);
 505
 506 void __init at32_add_system_devices(void)
 507 {
 508         system_manager.eim_first_irq = EIM_IRQ_BASE;
 509
 510         platform_device_register(&at32_sm_device);
 511         platform_device_register(&at32_intc0_device);
 512         platform_device_register(&smc0_device);
 513         platform_device_register(&pdc_device);
 514
 515         platform_device_register(&pio0_device);
 516         platform_device_register(&pio1_device);
 517         platform_device_register(&pio2_device);
 518         platform_device_register(&pio3_device);
 519         platform_device_register(&pio4_device);
 520 }
 521
 522 /* --------------------------------------------------------------------
 523  *  USART
 524  * -------------------------------------------------------------------- */
 525
 526 static struct atmel_uart_data atmel_usart0_data = {
 527         .use_dma_tx     = 1,
 528         .use_dma_rx     = 1,
 529 };
 530 static struct resource atmel_usart0_resource[] = {
 531         PBMEM(0xffe00c00),
 532         IRQ(6),
 533 };
 534 DEFINE_DEV_DATA(atmel_usart, 0);
 535 DEV_CLK(usart, atmel_usart0, pba, 4);
 536
 537 static struct atmel_uart_data atmel_usart1_data = {
 538         .use_dma_tx     = 1,
 539         .use_dma_rx     = 1,
 540 };
 541 static struct resource atmel_usart1_resource[] = {
 542         PBMEM(0xffe01000),
 543         IRQ(7),
 544 };
 545 DEFINE_DEV_DATA(atmel_usart, 1);
 546 DEV_CLK(usart, atmel_usart1, pba, 4);
 547
 548 static struct atmel_uart_data atmel_usart2_data = {
 549         .use_dma_tx     = 1,
 550         .use_dma_rx     = 1,
 551 };
 552 static struct resource atmel_usart2_resource[] = {
 553         PBMEM(0xffe01400),
 554         IRQ(8),
 555 };
 556 DEFINE_DEV_DATA(atmel_usart, 2);
 557 DEV_CLK(usart, atmel_usart2, pba, 5);
 558
 559 static struct atmel_uart_data atmel_usart3_data = {
 560         .use_dma_tx     = 1,
 561         .use_dma_rx     = 1,
 562 };
 563 static struct resource atmel_usart3_resource[] = {
 564         PBMEM(0xffe01800),
 565         IRQ(9),
 566 };
 567 DEFINE_DEV_DATA(atmel_usart, 3);
 568 DEV_CLK(usart, atmel_usart3, pba, 6);
 569
 570 static inline void configure_usart0_pins(void)
 571 {
 572         select_peripheral(PA(8),  PERIPH_B, 0); /* RXD  */
 573         select_peripheral(PA(9),  PERIPH_B, 0); /* TXD  */
 574 }
 575
 576 static inline void configure_usart1_pins(void)
 577 {
 578         select_peripheral(PA(17), PERIPH_A, 0); /* RXD  */
 579         select_peripheral(PA(18), PERIPH_A, 0); /* TXD  */
 580 }
 581
 582 static inline void configure_usart2_pins(void)
 583 {
 584         select_peripheral(PB(26), PERIPH_B, 0); /* RXD  */
 585         select_peripheral(PB(27), PERIPH_B, 0); /* TXD  */
 586 }
 587
 588 static inline void configure_usart3_pins(void)
 589 {
 590         select_peripheral(PB(18), PERIPH_B, 0); /* RXD  */
 591         select_peripheral(PB(17), PERIPH_B, 0); /* TXD  */
 592 }
 593
 594 static struct platform_device *__initdata at32_usarts[4];
 595
 596 void __init at32_map_usart(unsigned int hw_id, unsigned int line)
 597 {
 598         struct platform_device *pdev;
 599
 600         switch (hw_id) {
 601         case 0:
 602                 pdev = &atmel_usart0_device;
 603                 configure_usart0_pins();
 604                 break;
 605         case 1:
 606                 pdev = &atmel_usart1_device;
 607                 configure_usart1_pins();
 608                 break;
 609         case 2:
 610                 pdev = &atmel_usart2_device;
 611                 configure_usart2_pins();
 612                 break;
 613         case 3:
 614                 pdev = &atmel_usart3_device;
 615                 configure_usart3_pins();
 616                 break;
 617         default:
 618                 return;
 619         }
 620
 621         if (PXSEG(pdev->resource[0].start) == P4SEG) {
 622                 /* Addresses in the P4 segment are permanently mapped 1:1 */
 623                 struct atmel_uart_data *data = pdev->dev.platform_data;
 624                 data->regs = (void __iomem *)pdev->resource[0].start;
 625         }
 626
 627         pdev->id = line;
 628         at32_usarts[line] = pdev;
 629 }
 630
 631 struct platform_device *__init at32_add_device_usart(unsigned int id)
 632 {
 633         platform_device_register(at32_usarts[id]);
 634         return at32_usarts[id];
 635 }
 636
 637 struct platform_device *atmel_default_console_device;
 638
 639 void __init at32_setup_serial_console(unsigned int usart_id)
 640 {
 641         atmel_default_console_device = at32_usarts[usart_id];
 642 }
 643
 644 /* --------------------------------------------------------------------
 645  *  Ethernet
 646  * -------------------------------------------------------------------- */
 647
 648 static struct eth_platform_data macb0_data;
 649 static struct resource macb0_resource[] = {
 650         PBMEM(0xfff01800),
 651         IRQ(25),
 652 };
 653 DEFINE_DEV_DATA(macb, 0);
 654 DEV_CLK(hclk, macb0, hsb, 8);
 655 DEV_CLK(pclk, macb0, pbb, 6);
 656
 657 static struct eth_platform_data macb1_data;
 658 static struct resource macb1_resource[] = {
 659         PBMEM(0xfff01c00),
 660         IRQ(26),
 661 };
 662 DEFINE_DEV_DATA(macb, 1);
 663 DEV_CLK(hclk, macb1, hsb, 9);
 664 DEV_CLK(pclk, macb1, pbb, 7);
 665
 666 struct platform_device *__init
 667 at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
 668 {
 669         struct platform_device *pdev;
 670
 671         switch (id) {
 672         case 0:
 673                 pdev = &macb0_device;
 674
 675                 select_peripheral(PC(3),  PERIPH_A, 0); /* TXD0 */
 676                 select_peripheral(PC(4),  PERIPH_A, 0); /* TXD1 */
 677                 select_peripheral(PC(7),  PERIPH_A, 0); /* TXEN */
 678                 select_peripheral(PC(8),  PERIPH_A, 0); /* TXCK */
 679                 select_peripheral(PC(9),  PERIPH_A, 0); /* RXD0 */
 680                 select_peripheral(PC(10), PERIPH_A, 0); /* RXD1 */
 681                 select_peripheral(PC(13), PERIPH_A, 0); /* RXER */
 682                 select_peripheral(PC(15), PERIPH_A, 0); /* RXDV */
 683                 select_peripheral(PC(16), PERIPH_A, 0); /* MDC  */
 684                 select_peripheral(PC(17), PERIPH_A, 0); /* MDIO */
 685
 686                 if (!data->is_rmii) {
 687                         select_peripheral(PC(0),  PERIPH_A, 0); /* COL  */
 688                         select_peripheral(PC(1),  PERIPH_A, 0); /* CRS  */
 689                         select_peripheral(PC(2),  PERIPH_A, 0); /* TXER */
 690                         select_peripheral(PC(5),  PERIPH_A, 0); /* TXD2 */
 691                         select_peripheral(PC(6),  PERIPH_A, 0); /* TXD3 */
 692                         select_peripheral(PC(11), PERIPH_A, 0); /* RXD2 */
 693                         select_peripheral(PC(12), PERIPH_A, 0); /* RXD3 */
 694                         select_peripheral(PC(14), PERIPH_A, 0); /* RXCK */
 695                         select_peripheral(PC(18), PERIPH_A, 0); /* SPD  */
 696                 }
 697                 break;
 698
 699         case 1:
 700                 pdev = &macb1_device;
 701
 702                 select_peripheral(PD(13), PERIPH_B, 0);         /* TXD0 */
 703                 select_peripheral(PD(14), PERIPH_B, 0);         /* TXD1 */
 704                 select_peripheral(PD(11), PERIPH_B, 0);         /* TXEN */
 705                 select_peripheral(PD(12), PERIPH_B, 0);         /* TXCK */
 706                 select_peripheral(PD(10), PERIPH_B, 0);         /* RXD0 */
 707                 select_peripheral(PD(6),  PERIPH_B, 0);         /* RXD1 */
 708                 select_peripheral(PD(5),  PERIPH_B, 0);         /* RXER */
 709                 select_peripheral(PD(4),  PERIPH_B, 0);         /* RXDV */
 710                 select_peripheral(PD(3),  PERIPH_B, 0);         /* MDC  */
 711                 select_peripheral(PD(2),  PERIPH_B, 0);         /* MDIO */
 712
 713                 if (!data->is_rmii) {
 714                         select_peripheral(PC(19), PERIPH_B, 0); /* COL  */
 715                         select_peripheral(PC(23), PERIPH_B, 0); /* CRS  */
 716                         select_peripheral(PC(26), PERIPH_B, 0); /* TXER */
 717                         select_peripheral(PC(27), PERIPH_B, 0); /* TXD2 */
 718                         select_peripheral(PC(28), PERIPH_B, 0); /* TXD3 */
 719                         select_peripheral(PC(29), PERIPH_B, 0); /* RXD2 */
 720                         select_peripheral(PC(30), PERIPH_B, 0); /* RXD3 */
 721                         select_peripheral(PC(24), PERIPH_B, 0); /* RXCK */
 722                         select_peripheral(PD(15), PERIPH_B, 0); /* SPD  */
 723                 }
 724                 break;
 725
 726         default:
 727                 return NULL;
 728         }
 729
 730         memcpy(pdev->dev.platform_data, data, sizeof(struct eth_platform_data));
 731         platform_device_register(pdev);
 732
 733         return pdev;
 734 }
 735
 736 /* --------------------------------------------------------------------
 737  *  SPI
 738  * -------------------------------------------------------------------- */
 739 static struct resource atmel_spi0_resource[] = {
 740         PBMEM(0xffe00000),
 741         IRQ(3),
 742 };
 743 DEFINE_DEV(atmel_spi, 0);
 744 DEV_CLK(spi_clk, atmel_spi0, pba, 0);
 745
 746 static struct resource atmel_spi1_resource[] = {
 747         PBMEM(0xffe00400),
 748         IRQ(4),
 749 };
 750 DEFINE_DEV(atmel_spi, 1);
 751 DEV_CLK(spi_clk, atmel_spi1, pba, 1);
 752
 753 struct platform_device *__init at32_add_device_spi(unsigned int id)
 754 {
 755         struct platform_device *pdev;
 756
 757         switch (id) {
 758         case 0:
 759                 pdev = &atmel_spi0_device;
 760                 select_peripheral(PA(0),  PERIPH_A, 0); /* MISO  */
 761                 select_peripheral(PA(1),  PERIPH_A, 0); /* MOSI  */
 762                 select_peripheral(PA(2),  PERIPH_A, 0); /* SCK   */
 763
 764                 /* NPCS[2:0] */
 765                 at32_select_gpio(GPIO_PIN_PA(3),
 766                                  AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
 767                 at32_select_gpio(GPIO_PIN_PA(4),
 768                                  AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
 769                 at32_select_gpio(GPIO_PIN_PA(5),
 770                                  AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
 771                 break;
 772
 773         case 1:
 774                 pdev = &atmel_spi1_device;
 775                 select_peripheral(PB(0),  PERIPH_B, 0); /* MISO  */
 776                 select_peripheral(PB(1),  PERIPH_B, 0); /* MOSI  */
 777                 select_peripheral(PB(5),  PERIPH_B, 0); /* SCK   */
 778
 779                 /* NPCS[2:0] */
 780                 at32_select_gpio(GPIO_PIN_PB(2),
 781                                  AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
 782                 at32_select_gpio(GPIO_PIN_PB(3),
 783                                  AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
 784                 at32_select_gpio(GPIO_PIN_PB(4),
 785                                  AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
 786                 break;
 787
 788         default:
 789                 return NULL;
 790         }
 791
 792         platform_device_register(pdev);
 793         return pdev;
 794 }
 795
 796 /* --------------------------------------------------------------------
 797  *  LCDC
 798  * -------------------------------------------------------------------- */
 799 static struct lcdc_platform_data lcdc0_data;
 800 static struct resource lcdc0_resource[] = {
 801         {
 802                 .start          = 0xff000000,
 803                 .end            = 0xff000fff,
 804                 .flags          = IORESOURCE_MEM,
 805         },
 806         IRQ(1),
 807 };
 808 DEFINE_DEV_DATA(lcdc, 0);
 809 DEV_CLK(hclk, lcdc0, hsb, 7);
 810 static struct clk lcdc0_pixclk = {
 811         .name           = "pixclk",
 812         .dev            = &lcdc0_device.dev,
 813         .mode           = genclk_mode,
 814         .get_rate       = genclk_get_rate,
 815         .set_rate       = genclk_set_rate,
 816         .set_parent     = genclk_set_parent,
 817         .index          = 7,
 818 };
 819
 820 struct platform_device *__init
 821 at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data)
 822 {
 823         struct platform_device *pdev;
 824
 825         switch (id) {
 826         case 0:
 827                 pdev = &lcdc0_device;
 828                 select_peripheral(PC(19), PERIPH_A, 0); /* CC     */
 829                 select_peripheral(PC(20), PERIPH_A, 0); /* HSYNC  */
 830                 select_peripheral(PC(21), PERIPH_A, 0); /* PCLK   */
 831                 select_peripheral(PC(22), PERIPH_A, 0); /* VSYNC  */
 832                 select_peripheral(PC(23), PERIPH_A, 0); /* DVAL   */
 833                 select_peripheral(PC(24), PERIPH_A, 0); /* MODE   */
 834                 select_peripheral(PC(25), PERIPH_A, 0); /* PWR    */
 835                 select_peripheral(PC(26), PERIPH_A, 0); /* DATA0  */
 836                 select_peripheral(PC(27), PERIPH_A, 0); /* DATA1  */
 837                 select_peripheral(PC(28), PERIPH_A, 0); /* DATA2  */
 838                 select_peripheral(PC(29), PERIPH_A, 0); /* DATA3  */
 839                 select_peripheral(PC(30), PERIPH_A, 0); /* DATA4  */
 840                 select_peripheral(PC(31), PERIPH_A, 0); /* DATA5  */
 841                 select_peripheral(PD(0),  PERIPH_A, 0); /* DATA6  */
 842                 select_peripheral(PD(1),  PERIPH_A, 0); /* DATA7  */
 843                 select_peripheral(PD(2),  PERIPH_A, 0); /* DATA8  */
 844                 select_peripheral(PD(3),  PERIPH_A, 0); /* DATA9  */
 845                 select_peripheral(PD(4),  PERIPH_A, 0); /* DATA10 */
 846                 select_peripheral(PD(5),  PERIPH_A, 0); /* DATA11 */
 847                 select_peripheral(PD(6),  PERIPH_A, 0); /* DATA12 */
 848                 select_peripheral(PD(7),  PERIPH_A, 0); /* DATA13 */
 849                 select_peripheral(PD(8),  PERIPH_A, 0); /* DATA14 */
 850                 select_peripheral(PD(9),  PERIPH_A, 0); /* DATA15 */
 851                 select_peripheral(PD(10), PERIPH_A, 0); /* DATA16 */
 852                 select_peripheral(PD(11), PERIPH_A, 0); /* DATA17 */
 853                 select_peripheral(PD(12), PERIPH_A, 0); /* DATA18 */
 854                 select_peripheral(PD(13), PERIPH_A, 0); /* DATA19 */
 855                 select_peripheral(PD(14), PERIPH_A, 0); /* DATA20 */
 856                 select_peripheral(PD(15), PERIPH_A, 0); /* DATA21 */
 857                 select_peripheral(PD(16), PERIPH_A, 0); /* DATA22 */
 858                 select_peripheral(PD(17), PERIPH_A, 0); /* DATA23 */
 859
 860                 clk_set_parent(&lcdc0_pixclk, &pll0);
 861                 clk_set_rate(&lcdc0_pixclk, clk_get_rate(&pll0));
 862                 break;
 863
 864         default:
 865                 return NULL;
 866         }
 867
 868         memcpy(pdev->dev.platform_data, data,
 869                sizeof(struct lcdc_platform_data));
 870
 871         platform_device_register(pdev);
 872         return pdev;
 873 }
 874
 875 struct clk *at32_clock_list[] = {
 876         &osc32k,
 877         &osc0,
 878         &osc1,
 879         &pll0,
 880         &pll1,
 881         &cpu_clk,
 882         &hsb_clk,
 883         &pba_clk,
 884         &pbb_clk,
 885         &at32_sm_pclk,
 886         &at32_intc0_pclk,
 887         &ebi_clk,
 888         &hramc_clk,
 889         &smc0_pclk,
 890         &smc0_mck,
 891         &pdc_hclk,
 892         &pdc_pclk,
 893         &pico_clk,
 894         &pio0_mck,
 895         &pio1_mck,
 896         &pio2_mck,
 897         &pio3_mck,
 898         &pio4_mck,
 899         &atmel_usart0_usart,
 900         &atmel_usart1_usart,
 901         &atmel_usart2_usart,
 902         &atmel_usart3_usart,
 903         &macb0_hclk,
 904         &macb0_pclk,
 905         &macb1_hclk,
 906         &macb1_pclk,
 907         &atmel_spi0_spi_clk,
 908         &atmel_spi1_spi_clk,
 909         &lcdc0_hclk,
 910         &lcdc0_pixclk,
 911 };
 912 unsigned int at32_nr_clocks = ARRAY_SIZE(at32_clock_list);
 913
 914 void __init at32_portmux_init(void)
 915 {
 916         at32_init_pio(&pio0_device);
 917         at32_init_pio(&pio1_device);
 918         at32_init_pio(&pio2_device);
 919         at32_init_pio(&pio3_device);
 920         at32_init_pio(&pio4_device);
 921 }
 922
 923 void __init at32_clock_init(void)
 924 {
 925         struct at32_sm *sm = &system_manager;
 926         u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0;
 927         int i;
 928
 929         if (sm_readl(sm, PM_MCCTRL) & SM_BIT(PLLSEL))
 930                 main_clock = &pll0;
 931         else
 932                 main_clock = &osc0;
 933
 934         if (sm_readl(sm, PM_PLL0) & SM_BIT(PLLOSC))
 935                 pll0.parent = &osc1;
 936         if (sm_readl(sm, PM_PLL1) & SM_BIT(PLLOSC))
 937                 pll1.parent = &osc1;
 938
 939         /*
 940          * Turn on all clocks that have at least one user already, and
 941          * turn off everything else. We only do this for module
 942          * clocks, and even though it isn't particularly pretty to
 943          * check the address of the mode function, it should do the
 944          * trick...
 945          */
 946         for (i = 0; i < ARRAY_SIZE(at32_clock_list); i++) {
 947                 struct clk *clk = at32_clock_list[i];
 948
 949                 if (clk->mode == &cpu_clk_mode)
 950                         cpu_mask |= 1 << clk->index;
 951                 else if (clk->mode == &hsb_clk_mode)
 952                         hsb_mask |= 1 << clk->index;
 953                 else if (clk->mode == &pba_clk_mode)
 954                         pba_mask |= 1 << clk->index;
 955                 else if (clk->mode == &pbb_clk_mode)
 956                         pbb_mask |= 1 << clk->index;
 957         }
 958
 959         sm_writel(sm, PM_CPU_MASK, cpu_mask);
 960         sm_writel(sm, PM_HSB_MASK, hsb_mask);
 961         sm_writel(sm, PM_PBA_MASK, pba_mask);
 962         sm_writel(sm, PM_PBB_MASK, pbb_mask);
 963 }