arch/avr32/mach-at32ap/at32ap700x.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/delay.h>
  10 #include <linux/dw_dmac.h>
  11 #include <linux/fb.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/dma-mapping.h>
  15 #include <linux/gpio.h>
  16 #include <linux/spi/spi.h>
  17 #include <linux/usb/atmel_usba_udc.h>
  18
  19 #include <asm/atmel-mci.h>
  20 #include <asm/io.h>
  21 #include <asm/irq.h>
  22
  23 #include <mach/at32ap700x.h>
  24 #include <mach/board.h>
  25 #include <mach/hmatrix.h>
  26 #include <mach/portmux.h>
  27 #include <mach/sram.h>
  28
  29 #include <video/atmel_lcdc.h>
  30
  31 #include "clock.h"
  32 #include "pio.h"
  33 #include "pm.h"
  34
  35
  36 #define PBMEM(base)                                     \
  37         {                                               \
  38                 .start          = base,                 \
  39                 .end            = base + 0x3ff,         \
  40                 .flags          = IORESOURCE_MEM,       \
  41         }
  42 #define IRQ(num)                                        \
  43         {                                               \
  44                 .start          = num,                  \
  45                 .end            = num,                  \
  46                 .flags          = IORESOURCE_IRQ,       \
  47         }
  48 #define NAMED_IRQ(num, _name)                           \
  49         {                                               \
  50                 .start          = num,                  \
  51                 .end            = num,                  \
  52                 .name           = _name,                \
  53                 .flags          = IORESOURCE_IRQ,       \
  54         }
  55
  56 /* REVISIT these assume *every* device supports DMA, but several
  57  * don't ... tc, smc, pio, rtc, watchdog, pwm, ps2, and more.
  58  */
  59 #define DEFINE_DEV(_name, _id)                                  \
  60 static u64 _name##_id##_dma_mask = DMA_32BIT_MASK;              \
  61 static struct platform_device _name##_id##_device = {           \
  62         .name           = #_name,                               \
  63         .id             = _id,                                  \
  64         .dev            = {                                     \
  65                 .dma_mask = &_name##_id##_dma_mask,             \
  66                 .coherent_dma_mask = DMA_32BIT_MASK,            \
  67         },                                                      \
  68         .resource       = _name##_id##_resource,                \
  69         .num_resources  = ARRAY_SIZE(_name##_id##_resource),    \
  70 }
  71 #define DEFINE_DEV_DATA(_name, _id)                             \
  72 static u64 _name##_id##_dma_mask = DMA_32BIT_MASK;              \
  73 static struct platform_device _name##_id##_device = {           \
  74         .name           = #_name,                               \
  75         .id             = _id,                                  \
  76         .dev            = {                                     \
  77                 .dma_mask = &_name##_id##_dma_mask,             \
  78                 .platform_data  = &_name##_id##_data,           \
  79                 .coherent_dma_mask = DMA_32BIT_MASK,            \
  80         },                                                      \
  81         .resource       = _name##_id##_resource,                \
  82         .num_resources  = ARRAY_SIZE(_name##_id##_resource),    \
  83 }
  84
  85 #define select_peripheral(pin, periph, flags)                   \
  86         at32_select_periph(GPIO_PIN_##pin, GPIO_##periph, flags)
  87
  88 #define DEV_CLK(_name, devname, bus, _index)                    \
  89 static struct clk devname##_##_name = {                         \
  90         .name           = #_name,                               \
  91         .dev            = &devname##_device.dev,                \
  92         .parent         = &bus##_clk,                           \
  93         .mode           = bus##_clk_mode,                       \
  94         .get_rate       = bus##_clk_get_rate,                   \
  95         .index          = _index,                               \
  96 }
  97
  98 static DEFINE_SPINLOCK(pm_lock);
  99
 100 static struct clk osc0;
 101 static struct clk osc1;
 102
 103 static unsigned long osc_get_rate(struct clk *clk)
 104 {
 105         return at32_board_osc_rates[clk->index];
 106 }
 107
 108 static unsigned long pll_get_rate(struct clk *clk, unsigned long control)
 109 {
 110         unsigned long div, mul, rate;
 111
 112         div = PM_BFEXT(PLLDIV, control) + 1;
 113         mul = PM_BFEXT(PLLMUL, control) + 1;
 114
 115         rate = clk->parent->get_rate(clk->parent);
 116         rate = (rate + div / 2) / div;
 117         rate *= mul;
 118
 119         return rate;
 120 }
 121
 122 static long pll_set_rate(struct clk *clk, unsigned long rate,
 123                          u32 *pll_ctrl)
 124 {
 125         unsigned long mul;
 126         unsigned long mul_best_fit = 0;
 127         unsigned long div;
 128         unsigned long div_min;
 129         unsigned long div_max;
 130         unsigned long div_best_fit = 0;
 131         unsigned long base;
 132         unsigned long pll_in;
 133         unsigned long actual = 0;
 134         unsigned long rate_error;
 135         unsigned long rate_error_prev = ~0UL;
 136         u32 ctrl;
 137
 138         /* Rate must be between 80 MHz and 200 Mhz. */
 139         if (rate < 80000000UL || rate > 200000000UL)
 140                 return -EINVAL;
 141
 142         ctrl = PM_BF(PLLOPT, 4);
 143         base = clk->parent->get_rate(clk->parent);
 144
 145         /* PLL input frequency must be between 6 MHz and 32 MHz. */
 146         div_min = DIV_ROUND_UP(base, 32000000UL);
 147         div_max = base / 6000000UL;
 148
 149         if (div_max < div_min)
 150                 return -EINVAL;
 151
 152         for (div = div_min; div <= div_max; div++) {
 153                 pll_in = (base + div / 2) / div;
 154                 mul = (rate + pll_in / 2) / pll_in;
 155
 156                 if (mul == 0)
 157                         continue;
 158
 159                 actual = pll_in * mul;
 160                 rate_error = abs(actual - rate);
 161
 162                 if (rate_error < rate_error_prev) {
 163                         mul_best_fit = mul;
 164                         div_best_fit = div;
 165                         rate_error_prev = rate_error;
 166                 }
 167
 168                 if (rate_error == 0)
 169                         break;
 170         }
 171
 172         if (div_best_fit == 0)
 173                 return -EINVAL;
 174
 175         ctrl |= PM_BF(PLLMUL, mul_best_fit - 1);
 176         ctrl |= PM_BF(PLLDIV, div_best_fit - 1);
 177         ctrl |= PM_BF(PLLCOUNT, 16);
 178
 179         if (clk->parent == &osc1)
 180                 ctrl |= PM_BIT(PLLOSC);
 181
 182         *pll_ctrl = ctrl;
 183
 184         return actual;
 185 }
 186
 187 static unsigned long pll0_get_rate(struct clk *clk)
 188 {
 189         u32 control;
 190
 191         control = pm_readl(PLL0);
 192
 193         return pll_get_rate(clk, control);
 194 }
 195
 196 static void pll1_mode(struct clk *clk, int enabled)
 197 {
 198         unsigned long timeout;
 199         u32 status;
 200         u32 ctrl;
 201
 202         ctrl = pm_readl(PLL1);
 203
 204         if (enabled) {
 205                 if (!PM_BFEXT(PLLMUL, ctrl) && !PM_BFEXT(PLLDIV, ctrl)) {
 206                         pr_debug("clk %s: failed to enable, rate not set\n",
 207                                         clk->name);
 208                         return;
 209                 }
 210
 211                 ctrl |= PM_BIT(PLLEN);
 212                 pm_writel(PLL1, ctrl);
 213
 214                 /* Wait for PLL lock. */
 215                 for (timeout = 10000; timeout; timeout--) {
 216                         status = pm_readl(ISR);
 217                         if (status & PM_BIT(LOCK1))
 218                                 break;
 219                         udelay(10);
 220                 }
 221
 222                 if (!(status & PM_BIT(LOCK1)))
 223                         printk(KERN_ERR "clk %s: timeout waiting for lock\n",
 224                                         clk->name);
 225         } else {
 226                 ctrl &= ~PM_BIT(PLLEN);
 227                 pm_writel(PLL1, ctrl);
 228         }
 229 }
 230
 231 static unsigned long pll1_get_rate(struct clk *clk)
 232 {
 233         u32 control;
 234
 235         control = pm_readl(PLL1);
 236
 237         return pll_get_rate(clk, control);
 238 }
 239
 240 static long pll1_set_rate(struct clk *clk, unsigned long rate, int apply)
 241 {
 242         u32 ctrl = 0;
 243         unsigned long actual_rate;
 244
 245         actual_rate = pll_set_rate(clk, rate, &ctrl);
 246
 247         if (apply) {
 248                 if (actual_rate != rate)
 249                         return -EINVAL;
 250                 if (clk->users > 0)
 251                         return -EBUSY;
 252                 pr_debug(KERN_INFO "clk %s: new rate %lu (actual rate %lu)\n",
 253                                 clk->name, rate, actual_rate);
 254                 pm_writel(PLL1, ctrl);
 255         }
 256
 257         return actual_rate;
 258 }
 259
 260 static int pll1_set_parent(struct clk *clk, struct clk *parent)
 261 {
 262         u32 ctrl;
 263
 264         if (clk->users > 0)
 265                 return -EBUSY;
 266
 267         ctrl = pm_readl(PLL1);
 268         WARN_ON(ctrl & PM_BIT(PLLEN));
 269
 270         if (parent == &osc0)
 271                 ctrl &= ~PM_BIT(PLLOSC);
 272         else if (parent == &osc1)
 273                 ctrl |= PM_BIT(PLLOSC);
 274         else
 275                 return -EINVAL;
 276
 277         pm_writel(PLL1, ctrl);
 278         clk->parent = parent;
 279
 280         return 0;
 281 }
 282
 283 /*
 284  * The AT32AP7000 has five primary clock sources: One 32kHz
 285  * oscillator, two crystal oscillators and two PLLs.
 286  */
 287 static struct clk osc32k = {
 288         .name           = "osc32k",
 289         .get_rate       = osc_get_rate,
 290         .users          = 1,
 291         .index          = 0,
 292 };
 293 static struct clk osc0 = {
 294         .name           = "osc0",
 295         .get_rate       = osc_get_rate,
 296         .users          = 1,
 297         .index          = 1,
 298 };
 299 static struct clk osc1 = {
 300         .name           = "osc1",
 301         .get_rate       = osc_get_rate,
 302         .index          = 2,
 303 };
 304 static struct clk pll0 = {
 305         .name           = "pll0",
 306         .get_rate       = pll0_get_rate,
 307         .parent         = &osc0,
 308 };
 309 static struct clk pll1 = {
 310         .name           = "pll1",
 311         .mode           = pll1_mode,
 312         .get_rate       = pll1_get_rate,
 313         .set_rate       = pll1_set_rate,
 314         .set_parent     = pll1_set_parent,
 315         .parent         = &osc0,
 316 };
 317
 318 /*
 319  * The main clock can be either osc0 or pll0.  The boot loader may
 320  * have chosen one for us, so we don't really know which one until we
 321  * have a look at the SM.
 322  */
 323 static struct clk *main_clock;
 324
 325 /*
 326  * Synchronous clocks are generated from the main clock. The clocks
 327  * must satisfy the constraint
 328  *   fCPU >= fHSB >= fPB
 329  * i.e. each clock must not be faster than its parent.
 330  */
 331 static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift)
 332 {
 333         return main_clock->get_rate(main_clock) >> shift;
 334 };
 335
 336 static void cpu_clk_mode(struct clk *clk, int enabled)
 337 {
 338         unsigned long flags;
 339         u32 mask;
 340
 341         spin_lock_irqsave(&pm_lock, flags);
 342         mask = pm_readl(CPU_MASK);
 343         if (enabled)
 344                 mask |= 1 << clk->index;
 345         else
 346                 mask &= ~(1 << clk->index);
 347         pm_writel(CPU_MASK, mask);
 348         spin_unlock_irqrestore(&pm_lock, flags);
 349 }
 350
 351 static unsigned long cpu_clk_get_rate(struct clk *clk)
 352 {
 353         unsigned long cksel, shift = 0;
 354
 355         cksel = pm_readl(CKSEL);
 356         if (cksel & PM_BIT(CPUDIV))
 357                 shift = PM_BFEXT(CPUSEL, cksel) + 1;
 358
 359         return bus_clk_get_rate(clk, shift);
 360 }
 361
 362 static long cpu_clk_set_rate(struct clk *clk, unsigned long rate, int apply)
 363 {
 364         u32 control;
 365         unsigned long parent_rate, child_div, actual_rate, div;
 366
 367         parent_rate = clk->parent->get_rate(clk->parent);
 368         control = pm_readl(CKSEL);
 369
 370         if (control & PM_BIT(HSBDIV))
 371                 child_div = 1 << (PM_BFEXT(HSBSEL, control) + 1);
 372         else
 373                 child_div = 1;
 374
 375         if (rate > 3 * (parent_rate / 4) || child_div == 1) {
 376                 actual_rate = parent_rate;
 377                 control &= ~PM_BIT(CPUDIV);
 378         } else {
 379                 unsigned int cpusel;
 380                 div = (parent_rate + rate / 2) / rate;
 381                 if (div > child_div)
 382                         div = child_div;
 383                 cpusel = (div > 1) ? (fls(div) - 2) : 0;
 384                 control = PM_BIT(CPUDIV) | PM_BFINS(CPUSEL, cpusel, control);
 385                 actual_rate = parent_rate / (1 << (cpusel + 1));
 386         }
 387
 388         pr_debug("clk %s: new rate %lu (actual rate %lu)\n",
 389                         clk->name, rate, actual_rate);
 390
 391         if (apply)
 392                 pm_writel(CKSEL, control);
 393
 394         return actual_rate;
 395 }
 396
 397 static void hsb_clk_mode(struct clk *clk, int enabled)
 398 {
 399         unsigned long flags;
 400         u32 mask;
 401
 402         spin_lock_irqsave(&pm_lock, flags);
 403         mask = pm_readl(HSB_MASK);
 404         if (enabled)
 405                 mask |= 1 << clk->index;
 406         else
 407                 mask &= ~(1 << clk->index);
 408         pm_writel(HSB_MASK, mask);
 409         spin_unlock_irqrestore(&pm_lock, flags);
 410 }
 411
 412 static unsigned long hsb_clk_get_rate(struct clk *clk)
 413 {
 414         unsigned long cksel, shift = 0;
 415
 416         cksel = pm_readl(CKSEL);
 417         if (cksel & PM_BIT(HSBDIV))
 418                 shift = PM_BFEXT(HSBSEL, cksel) + 1;
 419
 420         return bus_clk_get_rate(clk, shift);
 421 }
 422
 423 static void pba_clk_mode(struct clk *clk, int enabled)
 424 {
 425         unsigned long flags;
 426         u32 mask;
 427
 428         spin_lock_irqsave(&pm_lock, flags);
 429         mask = pm_readl(PBA_MASK);
 430         if (enabled)
 431                 mask |= 1 << clk->index;
 432         else
 433                 mask &= ~(1 << clk->index);
 434         pm_writel(PBA_MASK, mask);
 435         spin_unlock_irqrestore(&pm_lock, flags);
 436 }
 437
 438 static unsigned long pba_clk_get_rate(struct clk *clk)
 439 {
 440         unsigned long cksel, shift = 0;
 441
 442         cksel = pm_readl(CKSEL);
 443         if (cksel & PM_BIT(PBADIV))
 444                 shift = PM_BFEXT(PBASEL, cksel) + 1;
 445
 446         return bus_clk_get_rate(clk, shift);
 447 }
 448
 449 static void pbb_clk_mode(struct clk *clk, int enabled)
 450 {
 451         unsigned long flags;
 452         u32 mask;
 453
 454         spin_lock_irqsave(&pm_lock, flags);
 455         mask = pm_readl(PBB_MASK);
 456         if (enabled)
 457                 mask |= 1 << clk->index;
 458         else
 459                 mask &= ~(1 << clk->index);
 460         pm_writel(PBB_MASK, mask);
 461         spin_unlock_irqrestore(&pm_lock, flags);
 462 }
 463
 464 static unsigned long pbb_clk_get_rate(struct clk *clk)
 465 {
 466         unsigned long cksel, shift = 0;
 467
 468         cksel = pm_readl(CKSEL);
 469         if (cksel & PM_BIT(PBBDIV))
 470                 shift = PM_BFEXT(PBBSEL, cksel) + 1;
 471
 472         return bus_clk_get_rate(clk, shift);
 473 }
 474
 475 static struct clk cpu_clk = {
 476         .name           = "cpu",
 477         .get_rate       = cpu_clk_get_rate,
 478         .set_rate       = cpu_clk_set_rate,
 479         .users          = 1,
 480 };
 481 static struct clk hsb_clk = {
 482         .name           = "hsb",
 483         .parent         = &cpu_clk,
 484         .get_rate       = hsb_clk_get_rate,
 485 };
 486 static struct clk pba_clk = {
 487         .name           = "pba",
 488         .parent         = &hsb_clk,
 489         .mode           = hsb_clk_mode,
 490         .get_rate       = pba_clk_get_rate,
 491         .index          = 1,
 492 };
 493 static struct clk pbb_clk = {
 494         .name           = "pbb",
 495         .parent         = &hsb_clk,
 496         .mode           = hsb_clk_mode,
 497         .get_rate       = pbb_clk_get_rate,
 498         .users          = 1,
 499         .index          = 2,
 500 };
 501
 502 /* --------------------------------------------------------------------
 503  *  Generic Clock operations
 504  * -------------------------------------------------------------------- */
 505
 506 static void genclk_mode(struct clk *clk, int enabled)
 507 {
 508         u32 control;
 509
 510         control = pm_readl(GCCTRL(clk->index));
 511         if (enabled)
 512                 control |= PM_BIT(CEN);
 513         else
 514                 control &= ~PM_BIT(CEN);
 515         pm_writel(GCCTRL(clk->index), control);
 516 }
 517
 518 static unsigned long genclk_get_rate(struct clk *clk)
 519 {
 520         u32 control;
 521         unsigned long div = 1;
 522
 523         control = pm_readl(GCCTRL(clk->index));
 524         if (control & PM_BIT(DIVEN))
 525                 div = 2 * (PM_BFEXT(DIV, control) + 1);
 526
 527         return clk->parent->get_rate(clk->parent) / div;
 528 }
 529
 530 static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply)
 531 {
 532         u32 control;
 533         unsigned long parent_rate, actual_rate, div;
 534
 535         parent_rate = clk->parent->get_rate(clk->parent);
 536         control = pm_readl(GCCTRL(clk->index));
 537
 538         if (rate > 3 * parent_rate / 4) {
 539                 actual_rate = parent_rate;
 540                 control &= ~PM_BIT(DIVEN);
 541         } else {
 542                 div = (parent_rate + rate) / (2 * rate) - 1;
 543                 control = PM_BFINS(DIV, div, control) | PM_BIT(DIVEN);
 544                 actual_rate = parent_rate / (2 * (div + 1));
 545         }
 546
 547         dev_dbg(clk->dev, "clk %s: new rate %lu (actual rate %lu)\n",
 548                 clk->name, rate, actual_rate);
 549
 550         if (apply)
 551                 pm_writel(GCCTRL(clk->index), control);
 552
 553         return actual_rate;
 554 }
 555
 556 int genclk_set_parent(struct clk *clk, struct clk *parent)
 557 {
 558         u32 control;
 559
 560         dev_dbg(clk->dev, "clk %s: new parent %s (was %s)\n",
 561                 clk->name, parent->name, clk->parent->name);
 562
 563         control = pm_readl(GCCTRL(clk->index));
 564
 565         if (parent == &osc1 || parent == &pll1)
 566                 control |= PM_BIT(OSCSEL);
 567         else if (parent == &osc0 || parent == &pll0)
 568                 control &= ~PM_BIT(OSCSEL);
 569         else
 570                 return -EINVAL;
 571
 572         if (parent == &pll0 || parent == &pll1)
 573                 control |= PM_BIT(PLLSEL);
 574         else
 575                 control &= ~PM_BIT(PLLSEL);
 576
 577         pm_writel(GCCTRL(clk->index), control);
 578         clk->parent = parent;
 579
 580         return 0;
 581 }
 582
 583 static void __init genclk_init_parent(struct clk *clk)
 584 {
 585         u32 control;
 586         struct clk *parent;
 587
 588         BUG_ON(clk->index > 7);
 589
 590         control = pm_readl(GCCTRL(clk->index));
 591         if (control & PM_BIT(OSCSEL))
 592                 parent = (control & PM_BIT(PLLSEL)) ? &pll1 : &osc1;
 593         else
 594                 parent = (control & PM_BIT(PLLSEL)) ? &pll0 : &osc0;
 595
 596         clk->parent = parent;
 597 }
 598
 599 static struct dw_dma_platform_data dw_dmac0_data = {
 600         .nr_channels    = 3,
 601 };
 602
 603 static struct resource dw_dmac0_resource[] = {
 604         PBMEM(0xff200000),
 605         IRQ(2),
 606 };
 607 DEFINE_DEV_DATA(dw_dmac, 0);
 608 DEV_CLK(hclk, dw_dmac0, hsb, 10);
 609
 610 /* --------------------------------------------------------------------
 611  *  System peripherals
 612  * -------------------------------------------------------------------- */
 613 static struct resource at32_pm0_resource[] = {
 614         {
 615                 .start  = 0xfff00000,
 616                 .end    = 0xfff0007f,
 617                 .flags  = IORESOURCE_MEM,
 618         },
 619         IRQ(20),
 620 };
 621
 622 static struct resource at32ap700x_rtc0_resource[] = {
 623         {
 624                 .start  = 0xfff00080,
 625                 .end    = 0xfff000af,
 626                 .flags  = IORESOURCE_MEM,
 627         },
 628         IRQ(21),
 629 };
 630
 631 static struct resource at32_wdt0_resource[] = {
 632         {
 633                 .start  = 0xfff000b0,
 634                 .end    = 0xfff000cf,
 635                 .flags  = IORESOURCE_MEM,
 636         },
 637 };
 638
 639 static struct resource at32_eic0_resource[] = {
 640         {
 641                 .start  = 0xfff00100,
 642                 .end    = 0xfff0013f,
 643                 .flags  = IORESOURCE_MEM,
 644         },
 645         IRQ(19),
 646 };
 647
 648 DEFINE_DEV(at32_pm, 0);
 649 DEFINE_DEV(at32ap700x_rtc, 0);
 650 DEFINE_DEV(at32_wdt, 0);
 651 DEFINE_DEV(at32_eic, 0);
 652
 653 /*
 654  * Peripheral clock for PM, RTC, WDT and EIC. PM will ensure that this
 655  * is always running.
 656  */
 657 static struct clk at32_pm_pclk = {
 658         .name           = "pclk",
 659         .dev            = &at32_pm0_device.dev,
 660         .parent         = &pbb_clk,
 661         .mode           = pbb_clk_mode,
 662         .get_rate       = pbb_clk_get_rate,
 663         .users          = 1,
 664         .index          = 0,
 665 };
 666
 667 static struct resource intc0_resource[] = {
 668         PBMEM(0xfff00400),
 669 };
 670 struct platform_device at32_intc0_device = {
 671         .name           = "intc",
 672         .id             = 0,
 673         .resource       = intc0_resource,
 674         .num_resources  = ARRAY_SIZE(intc0_resource),
 675 };
 676 DEV_CLK(pclk, at32_intc0, pbb, 1);
 677
 678 static struct clk ebi_clk = {
 679         .name           = "ebi",
 680         .parent         = &hsb_clk,
 681         .mode           = hsb_clk_mode,
 682         .get_rate       = hsb_clk_get_rate,
 683         .users          = 1,
 684 };
 685 static struct clk hramc_clk = {
 686         .name           = "hramc",
 687         .parent         = &hsb_clk,
 688         .mode           = hsb_clk_mode,
 689         .get_rate       = hsb_clk_get_rate,
 690         .users          = 1,
 691         .index          = 3,
 692 };
 693 static struct clk sdramc_clk = {
 694         .name           = "sdramc_clk",
 695         .parent         = &pbb_clk,
 696         .mode           = pbb_clk_mode,
 697         .get_rate       = pbb_clk_get_rate,
 698         .users          = 1,
 699         .index          = 14,
 700 };
 701
 702 static struct resource smc0_resource[] = {
 703         PBMEM(0xfff03400),
 704 };
 705 DEFINE_DEV(smc, 0);
 706 DEV_CLK(pclk, smc0, pbb, 13);
 707 DEV_CLK(mck, smc0, hsb, 0);
 708
 709 static struct platform_device pdc_device = {
 710         .name           = "pdc",
 711         .id             = 0,
 712 };
 713 DEV_CLK(hclk, pdc, hsb, 4);
 714 DEV_CLK(pclk, pdc, pba, 16);
 715
 716 static struct clk pico_clk = {
 717         .name           = "pico",
 718         .parent         = &cpu_clk,
 719         .mode           = cpu_clk_mode,
 720         .get_rate       = cpu_clk_get_rate,
 721         .users          = 1,
 722 };
 723
 724 /* --------------------------------------------------------------------
 725  * HMATRIX
 726  * -------------------------------------------------------------------- */
 727
 728 struct clk at32_hmatrix_clk = {
 729         .name           = "hmatrix_clk",
 730         .parent         = &pbb_clk,
 731         .mode           = pbb_clk_mode,
 732         .get_rate       = pbb_clk_get_rate,
 733         .index          = 2,
 734         .users          = 1,
 735 };
 736
 737 /*
 738  * Set bits in the HMATRIX Special Function Register (SFR) used by the
 739  * External Bus Interface (EBI). This can be used to enable special
 740  * features like CompactFlash support, NAND Flash support, etc. on
 741  * certain chipselects.
 742  */
 743 static inline void set_ebi_sfr_bits(u32 mask)
 744 {
 745         hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, mask);
 746 }
 747
 748 /* --------------------------------------------------------------------
 749  *  Timer/Counter (TC)
 750  * -------------------------------------------------------------------- */
 751
 752 static struct resource at32_tcb0_resource[] = {
 753         PBMEM(0xfff00c00),
 754         IRQ(22),
 755 };
 756 static struct platform_device at32_tcb0_device = {
 757         .name           = "atmel_tcb",
 758         .id             = 0,
 759         .resource       = at32_tcb0_resource,
 760         .num_resources  = ARRAY_SIZE(at32_tcb0_resource),
 761 };
 762 DEV_CLK(t0_clk, at32_tcb0, pbb, 3);
 763
 764 static struct resource at32_tcb1_resource[] = {
 765         PBMEM(0xfff01000),
 766         IRQ(23),
 767 };
 768 static struct platform_device at32_tcb1_device = {
 769         .name           = "atmel_tcb",
 770         .id             = 1,
 771         .resource       = at32_tcb1_resource,
 772         .num_resources  = ARRAY_SIZE(at32_tcb1_resource),
 773 };
 774 DEV_CLK(t0_clk, at32_tcb1, pbb, 4);
 775
 776 /* --------------------------------------------------------------------
 777  *  PIO
 778  * -------------------------------------------------------------------- */
 779
 780 static struct resource pio0_resource[] = {
 781         PBMEM(0xffe02800),
 782         IRQ(13),
 783 };
 784 DEFINE_DEV(pio, 0);
 785 DEV_CLK(mck, pio0, pba, 10);
 786
 787 static struct resource pio1_resource[] = {
 788         PBMEM(0xffe02c00),
 789         IRQ(14),
 790 };
 791 DEFINE_DEV(pio, 1);
 792 DEV_CLK(mck, pio1, pba, 11);
 793
 794 static struct resource pio2_resource[] = {
 795         PBMEM(0xffe03000),
 796         IRQ(15),
 797 };
 798 DEFINE_DEV(pio, 2);
 799 DEV_CLK(mck, pio2, pba, 12);
 800
 801 static struct resource pio3_resource[] = {
 802         PBMEM(0xffe03400),
 803         IRQ(16),
 804 };
 805 DEFINE_DEV(pio, 3);
 806 DEV_CLK(mck, pio3, pba, 13);
 807
 808 static struct resource pio4_resource[] = {
 809         PBMEM(0xffe03800),
 810         IRQ(17),
 811 };
 812 DEFINE_DEV(pio, 4);
 813 DEV_CLK(mck, pio4, pba, 14);
 814
 815 void __init at32_add_system_devices(void)
 816 {
 817         platform_device_register(&at32_pm0_device);
 818         platform_device_register(&at32_intc0_device);
 819         platform_device_register(&at32ap700x_rtc0_device);
 820         platform_device_register(&at32_wdt0_device);
 821         platform_device_register(&at32_eic0_device);
 822         platform_device_register(&smc0_device);
 823         platform_device_register(&pdc_device);
 824         platform_device_register(&dw_dmac0_device);
 825
 826         platform_device_register(&at32_tcb0_device);
 827         platform_device_register(&at32_tcb1_device);
 828
 829         platform_device_register(&pio0_device);
 830         platform_device_register(&pio1_device);
 831         platform_device_register(&pio2_device);
 832         platform_device_register(&pio3_device);
 833         platform_device_register(&pio4_device);
 834 }
 835
 836 /* --------------------------------------------------------------------
 837  *  PSIF
 838  * -------------------------------------------------------------------- */
 839 static struct resource atmel_psif0_resource[] __initdata = {
 840         {
 841                 .start  = 0xffe03c00,
 842                 .end    = 0xffe03cff,
 843                 .flags  = IORESOURCE_MEM,
 844         },
 845         IRQ(18),
 846 };
 847 static struct clk atmel_psif0_pclk = {
 848         .name           = "pclk",
 849         .parent         = &pba_clk,
 850         .mode           = pba_clk_mode,
 851         .get_rate       = pba_clk_get_rate,
 852         .index          = 15,
 853 };
 854
 855 static struct resource atmel_psif1_resource[] __initdata = {
 856         {
 857                 .start  = 0xffe03d00,
 858                 .end    = 0xffe03dff,
 859                 .flags  = IORESOURCE_MEM,
 860         },
 861         IRQ(18),
 862 };
 863 static struct clk atmel_psif1_pclk = {
 864         .name           = "pclk",
 865         .parent         = &pba_clk,
 866         .mode           = pba_clk_mode,
 867         .get_rate       = pba_clk_get_rate,
 868         .index          = 15,
 869 };
 870
 871 struct platform_device *__init at32_add_device_psif(unsigned int id)
 872 {
 873         struct platform_device *pdev;
 874
 875         if (!(id == 0 || id == 1))
 876                 return NULL;
 877
 878         pdev = platform_device_alloc("atmel_psif", id);
 879         if (!pdev)
 880                 return NULL;
 881
 882         switch (id) {
 883         case 0:
 884                 if (platform_device_add_resources(pdev, atmel_psif0_resource,
 885                                         ARRAY_SIZE(atmel_psif0_resource)))
 886                         goto err_add_resources;
 887                 atmel_psif0_pclk.dev = &pdev->dev;
 888                 select_peripheral(PA(8), PERIPH_A, 0); /* CLOCK */
 889                 select_peripheral(PA(9), PERIPH_A, 0); /* DATA  */
 890                 break;
 891         case 1:
 892                 if (platform_device_add_resources(pdev, atmel_psif1_resource,
 893                                         ARRAY_SIZE(atmel_psif1_resource)))
 894                         goto err_add_resources;
 895                 atmel_psif1_pclk.dev = &pdev->dev;
 896                 select_peripheral(PB(11), PERIPH_A, 0); /* CLOCK */
 897                 select_peripheral(PB(12), PERIPH_A, 0); /* DATA  */
 898                 break;
 899         default:
 900                 return NULL;
 901         }
 902
 903         platform_device_add(pdev);
 904         return pdev;
 905
 906 err_add_resources:
 907         platform_device_put(pdev);
 908         return NULL;
 909 }
 910
 911 /* --------------------------------------------------------------------
 912  *  USART
 913  * -------------------------------------------------------------------- */
 914
 915 static struct atmel_uart_data atmel_usart0_data = {
 916         .use_dma_tx     = 1,
 917         .use_dma_rx     = 1,
 918 };
 919 static struct resource atmel_usart0_resource[] = {
 920         PBMEM(0xffe00c00),
 921         IRQ(6),
 922 };
 923 DEFINE_DEV_DATA(atmel_usart, 0);
 924 DEV_CLK(usart, atmel_usart0, pba, 3);
 925
 926 static struct atmel_uart_data atmel_usart1_data = {
 927         .use_dma_tx     = 1,
 928         .use_dma_rx     = 1,
 929 };
 930 static struct resource atmel_usart1_resource[] = {
 931         PBMEM(0xffe01000),
 932         IRQ(7),
 933 };
 934 DEFINE_DEV_DATA(atmel_usart, 1);
 935 DEV_CLK(usart, atmel_usart1, pba, 4);
 936
 937 static struct atmel_uart_data atmel_usart2_data = {
 938         .use_dma_tx     = 1,
 939         .use_dma_rx     = 1,
 940 };
 941 static struct resource atmel_usart2_resource[] = {
 942         PBMEM(0xffe01400),
 943         IRQ(8),
 944 };
 945 DEFINE_DEV_DATA(atmel_usart, 2);
 946 DEV_CLK(usart, atmel_usart2, pba, 5);
 947
 948 static struct atmel_uart_data atmel_usart3_data = {
 949         .use_dma_tx     = 1,
 950         .use_dma_rx     = 1,
 951 };
 952 static struct resource atmel_usart3_resource[] = {
 953         PBMEM(0xffe01800),
 954         IRQ(9),
 955 };
 956 DEFINE_DEV_DATA(atmel_usart, 3);
 957 DEV_CLK(usart, atmel_usart3, pba, 6);
 958
 959 static inline void configure_usart0_pins(void)
 960 {
 961         select_peripheral(PA(8),  PERIPH_B, 0); /* RXD  */
 962         select_peripheral(PA(9),  PERIPH_B, 0); /* TXD  */
 963 }
 964
 965 static inline void configure_usart1_pins(void)
 966 {
 967         select_peripheral(PA(17), PERIPH_A, 0); /* RXD  */
 968         select_peripheral(PA(18), PERIPH_A, 0); /* TXD  */
 969 }
 970
 971 static inline void configure_usart2_pins(void)
 972 {
 973         select_peripheral(PB(26), PERIPH_B, 0); /* RXD  */
 974         select_peripheral(PB(27), PERIPH_B, 0); /* TXD  */
 975 }
 976
 977 static inline void configure_usart3_pins(void)
 978 {
 979         select_peripheral(PB(18), PERIPH_B, 0); /* RXD  */
 980         select_peripheral(PB(17), PERIPH_B, 0); /* TXD  */
 981 }
 982
 983 static struct platform_device *__initdata at32_usarts[4];
 984
 985 void __init at32_map_usart(unsigned int hw_id, unsigned int line)
 986 {
 987         struct platform_device *pdev;
 988
 989         switch (hw_id) {
 990         case 0:
 991                 pdev = &atmel_usart0_device;
 992                 configure_usart0_pins();
 993                 break;
 994         case 1:
 995                 pdev = &atmel_usart1_device;
 996                 configure_usart1_pins();
 997                 break;
 998         case 2:
 999                 pdev = &atmel_usart2_device;
1000                 configure_usart2_pins();
1001                 break;
1002         case 3:
1003                 pdev = &atmel_usart3_device;
1004                 configure_usart3_pins();
1005                 break;
1006         default:
1007                 return;
1008         }
1009
1010         if (PXSEG(pdev->resource[0].start) == P4SEG) {
1011                 /* Addresses in the P4 segment are permanently mapped 1:1 */
1012                 struct atmel_uart_data *data = pdev->dev.platform_data;
1013                 data->regs = (void __iomem *)pdev->resource[0].start;
1014         }
1015
1016         pdev->id = line;
1017         at32_usarts[line] = pdev;
1018 }
1019
1020 struct platform_device *__init at32_add_device_usart(unsigned int id)
1021 {
1022         platform_device_register(at32_usarts[id]);
1023         return at32_usarts[id];
1024 }
1025
1026 struct platform_device *atmel_default_console_device;
1027
1028 void __init at32_setup_serial_console(unsigned int usart_id)
1029 {
1030         atmel_default_console_device = at32_usarts[usart_id];
1031 }
1032
1033 /* --------------------------------------------------------------------
1034  *  Ethernet
1035  * -------------------------------------------------------------------- */
1036
1037 #ifdef CONFIG_CPU_AT32AP7000
1038 static struct eth_platform_data macb0_data;
1039 static struct resource macb0_resource[] = {
1040         PBMEM(0xfff01800),
1041         IRQ(25),
1042 };
1043 DEFINE_DEV_DATA(macb, 0);
1044 DEV_CLK(hclk, macb0, hsb, 8);
1045 DEV_CLK(pclk, macb0, pbb, 6);
1046
1047 static struct eth_platform_data macb1_data;
1048 static struct resource macb1_resource[] = {
1049         PBMEM(0xfff01c00),
1050         IRQ(26),
1051 };
1052 DEFINE_DEV_DATA(macb, 1);
1053 DEV_CLK(hclk, macb1, hsb, 9);
1054 DEV_CLK(pclk, macb1, pbb, 7);
1055
1056 struct platform_device *__init
1057 at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
1058 {
1059         struct platform_device *pdev;
1060
1061         switch (id) {
1062         case 0:
1063                 pdev = &macb0_device;
1064
1065                 select_peripheral(PC(3),  PERIPH_A, 0); /* TXD0 */
1066                 select_peripheral(PC(4),  PERIPH_A, 0); /* TXD1 */
1067                 select_peripheral(PC(7),  PERIPH_A, 0); /* TXEN */
1068                 select_peripheral(PC(8),  PERIPH_A, 0); /* TXCK */
1069                 select_peripheral(PC(9),  PERIPH_A, 0); /* RXD0 */
1070                 select_peripheral(PC(10), PERIPH_A, 0); /* RXD1 */
1071                 select_peripheral(PC(13), PERIPH_A, 0); /* RXER */
1072                 select_peripheral(PC(15), PERIPH_A, 0); /* RXDV */
1073                 select_peripheral(PC(16), PERIPH_A, 0); /* MDC  */
1074                 select_peripheral(PC(17), PERIPH_A, 0); /* MDIO */
1075
1076                 if (!data->is_rmii) {
1077                         select_peripheral(PC(0),  PERIPH_A, 0); /* COL  */
1078                         select_peripheral(PC(1),  PERIPH_A, 0); /* CRS  */
1079                         select_peripheral(PC(2),  PERIPH_A, 0); /* TXER */
1080                         select_peripheral(PC(5),  PERIPH_A, 0); /* TXD2 */
1081                         select_peripheral(PC(6),  PERIPH_A, 0); /* TXD3 */
1082                         select_peripheral(PC(11), PERIPH_A, 0); /* RXD2 */
1083                         select_peripheral(PC(12), PERIPH_A, 0); /* RXD3 */
1084                         select_peripheral(PC(14), PERIPH_A, 0); /* RXCK */
1085                         select_peripheral(PC(18), PERIPH_A, 0); /* SPD  */
1086                 }
1087                 break;
1088
1089         case 1:
1090                 pdev = &macb1_device;
1091
1092                 select_peripheral(PD(13), PERIPH_B, 0);         /* TXD0 */
1093                 select_peripheral(PD(14), PERIPH_B, 0);         /* TXD1 */
1094                 select_peripheral(PD(11), PERIPH_B, 0);         /* TXEN */
1095                 select_peripheral(PD(12), PERIPH_B, 0);         /* TXCK */
1096                 select_peripheral(PD(10), PERIPH_B, 0);         /* RXD0 */
1097                 select_peripheral(PD(6),  PERIPH_B, 0);         /* RXD1 */
1098                 select_peripheral(PD(5),  PERIPH_B, 0);         /* RXER */
1099                 select_peripheral(PD(4),  PERIPH_B, 0);         /* RXDV */
1100                 select_peripheral(PD(3),  PERIPH_B, 0);         /* MDC  */
1101                 select_peripheral(PD(2),  PERIPH_B, 0);         /* MDIO */
1102
1103                 if (!data->is_rmii) {
1104                         select_peripheral(PC(19), PERIPH_B, 0); /* COL  */
1105                         select_peripheral(PC(23), PERIPH_B, 0); /* CRS  */
1106                         select_peripheral(PC(26), PERIPH_B, 0); /* TXER */
1107                         select_peripheral(PC(27), PERIPH_B, 0); /* TXD2 */
1108                         select_peripheral(PC(28), PERIPH_B, 0); /* TXD3 */
1109                         select_peripheral(PC(29), PERIPH_B, 0); /* RXD2 */
1110                         select_peripheral(PC(30), PERIPH_B, 0); /* RXD3 */
1111                         select_peripheral(PC(24), PERIPH_B, 0); /* RXCK */
1112                         select_peripheral(PD(15), PERIPH_B, 0); /* SPD  */
1113                 }
1114                 break;
1115
1116         default:
1117                 return NULL;
1118         }
1119
1120         memcpy(pdev->dev.platform_data, data, sizeof(struct eth_platform_data));
1121         platform_device_register(pdev);
1122
1123         return pdev;
1124 }
1125 #endif
1126
1127 /* --------------------------------------------------------------------
1128  *  SPI
1129  * -------------------------------------------------------------------- */
1130 static struct resource atmel_spi0_resource[] = {
1131         PBMEM(0xffe00000),
1132         IRQ(3),
1133 };
1134 DEFINE_DEV(atmel_spi, 0);
1135 DEV_CLK(spi_clk, atmel_spi0, pba, 0);
1136
1137 static struct resource atmel_spi1_resource[] = {
1138         PBMEM(0xffe00400),
1139         IRQ(4),
1140 };
1141 DEFINE_DEV(atmel_spi, 1);
1142 DEV_CLK(spi_clk, atmel_spi1, pba, 1);
1143
1144 static void __init
1145 at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b,
1146                       unsigned int n, const u8 *pins)
1147 {
1148         unsigned int pin, mode;
1149
1150         for (; n; n--, b++) {
1151                 b->bus_num = bus_num;
1152                 if (b->chip_select >= 4)
1153                         continue;
1154                 pin = (unsigned)b->controller_data;
1155                 if (!pin) {
1156                         pin = pins[b->chip_select];
1157                         b->controller_data = (void *)pin;
1158                 }
1159                 mode = AT32_GPIOF_OUTPUT;
1160                 if (!(b->mode & SPI_CS_HIGH))
1161                         mode |= AT32_GPIOF_HIGH;
1162                 at32_select_gpio(pin, mode);
1163         }
1164 }
1165
1166 struct platform_device *__init
1167 at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n)
1168 {
1169         /*
1170          * Manage the chipselects as GPIOs, normally using the same pins
1171          * the SPI controller expects; but boards can use other pins.
1172          */
1173         static u8 __initdata spi0_pins[] =
1174                 { GPIO_PIN_PA(3), GPIO_PIN_PA(4),
1175                   GPIO_PIN_PA(5), GPIO_PIN_PA(20), };
1176         static u8 __initdata spi1_pins[] =
1177                 { GPIO_PIN_PB(2), GPIO_PIN_PB(3),
1178                   GPIO_PIN_PB(4), GPIO_PIN_PA(27), };
1179         struct platform_device *pdev;
1180
1181         switch (id) {
1182         case 0:
1183                 pdev = &atmel_spi0_device;
1184                 /* pullup MISO so a level is always defined */
1185                 select_peripheral(PA(0),  PERIPH_A, AT32_GPIOF_PULLUP);
1186                 select_peripheral(PA(1),  PERIPH_A, 0); /* MOSI  */
1187                 select_peripheral(PA(2),  PERIPH_A, 0); /* SCK   */
1188                 at32_spi_setup_slaves(0, b, n, spi0_pins);
1189                 break;
1190
1191         case 1:
1192                 pdev = &atmel_spi1_device;
1193                 /* pullup MISO so a level is always defined */
1194                 select_peripheral(PB(0),  PERIPH_B, AT32_GPIOF_PULLUP);
1195                 select_peripheral(PB(1),  PERIPH_B, 0); /* MOSI  */
1196                 select_peripheral(PB(5),  PERIPH_B, 0); /* SCK   */
1197                 at32_spi_setup_slaves(1, b, n, spi1_pins);
1198                 break;
1199
1200         default:
1201                 return NULL;
1202         }
1203
1204         spi_register_board_info(b, n);
1205         platform_device_register(pdev);
1206         return pdev;
1207 }
1208
1209 /* --------------------------------------------------------------------
1210  *  TWI
1211  * -------------------------------------------------------------------- */
1212 static struct resource atmel_twi0_resource[] __initdata = {
1213         PBMEM(0xffe00800),
1214         IRQ(5),
1215 };
1216 static struct clk atmel_twi0_pclk = {
1217         .name           = "twi_pclk",
1218         .parent         = &pba_clk,
1219         .mode           = pba_clk_mode,
1220         .get_rate       = pba_clk_get_rate,
1221         .index          = 2,
1222 };
1223
1224 struct platform_device *__init at32_add_device_twi(unsigned int id,
1225                                                     struct i2c_board_info *b,
1226                                                     unsigned int n)
1227 {
1228         struct platform_device *pdev;
1229
1230         if (id != 0)
1231                 return NULL;
1232
1233         pdev = platform_device_alloc("atmel_twi", id);
1234         if (!pdev)
1235                 return NULL;
1236
1237         if (platform_device_add_resources(pdev, atmel_twi0_resource,
1238                                 ARRAY_SIZE(atmel_twi0_resource)))
1239                 goto err_add_resources;
1240
1241         select_peripheral(PA(6),  PERIPH_A, 0); /* SDA  */
1242         select_peripheral(PA(7),  PERIPH_A, 0); /* SDL  */
1243
1244         atmel_twi0_pclk.dev = &pdev->dev;
1245
1246         if (b)
1247                 i2c_register_board_info(id, b, n);
1248
1249         platform_device_add(pdev);
1250         return pdev;
1251
1252 err_add_resources:
1253         platform_device_put(pdev);
1254         return NULL;
1255 }
1256
1257 /* --------------------------------------------------------------------
1258  * MMC
1259  * -------------------------------------------------------------------- */
1260 static struct resource atmel_mci0_resource[] __initdata = {
1261         PBMEM(0xfff02400),
1262         IRQ(28),
1263 };
1264 static struct clk atmel_mci0_pclk = {
1265         .name           = "mci_clk",
1266         .parent         = &pbb_clk,
1267         .mode           = pbb_clk_mode,
1268         .get_rate       = pbb_clk_get_rate,
1269         .index          = 9,
1270 };
1271
1272 struct platform_device *__init
1273 at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
1274 {
1275         struct platform_device          *pdev;
1276
1277         if (id != 0 || !data)
1278                 return NULL;
1279
1280         /* Must have at least one usable slot */
1281         if (!data->slot[0].bus_width && !data->slot[1].bus_width)
1282                 return NULL;
1283
1284         pdev = platform_device_alloc("atmel_mci", id);
1285         if (!pdev)
1286                 goto fail;
1287
1288         if (platform_device_add_resources(pdev, atmel_mci0_resource,
1289                                 ARRAY_SIZE(atmel_mci0_resource)))
1290                 goto fail;
1291
1292
1293         if (platform_device_add_data(pdev, data,
1294                                 sizeof(struct mci_platform_data)))
1295                 goto fail;
1296
1297         /* CLK line is common to both slots */
1298         select_peripheral(PA(10), PERIPH_A, 0);
1299
1300         switch (data->slot[0].bus_width) {
1301         case 4:
1302                 select_peripheral(PA(13), PERIPH_A, 0); /* DATA1 */
1303                 select_peripheral(PA(14), PERIPH_A, 0); /* DATA2 */
1304                 select_peripheral(PA(15), PERIPH_A, 0); /* DATA3 */
1305                 /* fall through */
1306         case 1:
1307                 select_peripheral(PA(11), PERIPH_A, 0); /* CMD   */
1308                 select_peripheral(PA(12), PERIPH_A, 0); /* DATA0 */
1309
1310                 if (gpio_is_valid(data->slot[0].detect_pin))
1311                         at32_select_gpio(data->slot[0].detect_pin, 0);
1312                 if (gpio_is_valid(data->slot[0].wp_pin))
1313                         at32_select_gpio(data->slot[0].wp_pin, 0);
1314                 break;
1315         case 0:
1316                 /* Slot is unused */
1317                 break;
1318         default:
1319                 goto fail;
1320         }
1321
1322         switch (data->slot[1].bus_width) {
1323         case 4:
1324                 select_peripheral(PB(8),  PERIPH_B, 0); /* DATA1 */
1325                 select_peripheral(PB(9),  PERIPH_B, 0); /* DATA2 */
1326                 select_peripheral(PB(10), PERIPH_B, 0); /* DATA3 */
1327                 /* fall through */
1328         case 1:
1329                 select_peripheral(PB(6),  PERIPH_B, 0); /* CMD   */
1330                 select_peripheral(PB(7),  PERIPH_B, 0); /* DATA0 */
1331
1332                 if (gpio_is_valid(data->slot[1].detect_pin))
1333                         at32_select_gpio(data->slot[1].detect_pin, 0);
1334                 if (gpio_is_valid(data->slot[1].wp_pin))
1335                         at32_select_gpio(data->slot[1].wp_pin, 0);
1336                 break;
1337         case 0:
1338                 /* Slot is unused */
1339                 break;
1340         default:
1341                 if (!data->slot[0].bus_width)
1342                         goto fail;
1343
1344                 data->slot[1].bus_width = 0;
1345                 break;
1346         }
1347
1348         atmel_mci0_pclk.dev = &pdev->dev;
1349
1350         platform_device_add(pdev);
1351         return pdev;
1352
1353 fail:
1354         platform_device_put(pdev);
1355         return NULL;
1356 }
1357
1358 /* --------------------------------------------------------------------
1359  *  LCDC
1360  * -------------------------------------------------------------------- */
1361 #if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
1362 static struct atmel_lcdfb_info atmel_lcdfb0_data;
1363 static struct resource atmel_lcdfb0_resource[] = {
1364         {
1365                 .start          = 0xff000000,
1366                 .end            = 0xff000fff,
1367                 .flags          = IORESOURCE_MEM,
1368         },
1369         IRQ(1),
1370         {
1371                 /* Placeholder for pre-allocated fb memory */
1372                 .start          = 0x00000000,
1373                 .end            = 0x00000000,
1374                 .flags          = 0,
1375         },
1376 };
1377 DEFINE_DEV_DATA(atmel_lcdfb, 0);
1378 DEV_CLK(hck1, atmel_lcdfb0, hsb, 7);
1379 static struct clk atmel_lcdfb0_pixclk = {
1380         .name           = "lcdc_clk",
1381         .dev            = &atmel_lcdfb0_device.dev,
1382         .mode           = genclk_mode,
1383         .get_rate       = genclk_get_rate,
1384         .set_rate       = genclk_set_rate,
1385         .set_parent     = genclk_set_parent,
1386         .index          = 7,
1387 };
1388
1389 struct platform_device *__init
1390 at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
1391                      unsigned long fbmem_start, unsigned long fbmem_len,
1392                      unsigned int pin_config)
1393 {
1394         struct platform_device *pdev;
1395         struct atmel_lcdfb_info *info;
1396         struct fb_monspecs *monspecs;
1397         struct fb_videomode *modedb;
1398         unsigned int modedb_size;
1399
1400         /*
1401          * Do a deep copy of the fb data, monspecs and modedb. Make
1402          * sure all allocations are done before setting up the
1403          * portmux.
1404          */
1405         monspecs = kmemdup(data->default_monspecs,
1406                            sizeof(struct fb_monspecs), GFP_KERNEL);
1407         if (!monspecs)
1408                 return NULL;
1409
1410         modedb_size = sizeof(struct fb_videomode) * monspecs->modedb_len;
1411         modedb = kmemdup(monspecs->modedb, modedb_size, GFP_KERNEL);
1412         if (!modedb)
1413                 goto err_dup_modedb;
1414         monspecs->modedb = modedb;
1415
1416         switch (id) {
1417         case 0:
1418                 pdev = &atmel_lcdfb0_device;
1419
1420                 switch (pin_config) {
1421                 case 0:
1422                         select_peripheral(PC(19), PERIPH_A, 0); /* CC     */
1423                         select_peripheral(PC(20), PERIPH_A, 0); /* HSYNC  */
1424                         select_peripheral(PC(21), PERIPH_A, 0); /* PCLK   */
1425                         select_peripheral(PC(22), PERIPH_A, 0); /* VSYNC  */
1426                         select_peripheral(PC(23), PERIPH_A, 0); /* DVAL   */
1427                         select_peripheral(PC(24), PERIPH_A, 0); /* MODE   */
1428                         select_peripheral(PC(25), PERIPH_A, 0); /* PWR    */
1429                         select_peripheral(PC(26), PERIPH_A, 0); /* DATA0  */
1430                         select_peripheral(PC(27), PERIPH_A, 0); /* DATA1  */
1431                         select_peripheral(PC(28), PERIPH_A, 0); /* DATA2  */
1432                         select_peripheral(PC(29), PERIPH_A, 0); /* DATA3  */
1433                         select_peripheral(PC(30), PERIPH_A, 0); /* DATA4  */
1434                         select_peripheral(PC(31), PERIPH_A, 0); /* DATA5  */
1435                         select_peripheral(PD(0),  PERIPH_A, 0); /* DATA6  */
1436                         select_peripheral(PD(1),  PERIPH_A, 0); /* DATA7  */
1437                         select_peripheral(PD(2),  PERIPH_A, 0); /* DATA8  */
1438                         select_peripheral(PD(3),  PERIPH_A, 0); /* DATA9  */
1439                         select_peripheral(PD(4),  PERIPH_A, 0); /* DATA10 */
1440                         select_peripheral(PD(5),  PERIPH_A, 0); /* DATA11 */
1441                         select_peripheral(PD(6),  PERIPH_A, 0); /* DATA12 */
1442                         select_peripheral(PD(7),  PERIPH_A, 0); /* DATA13 */
1443                         select_peripheral(PD(8),  PERIPH_A, 0); /* DATA14 */
1444                         select_peripheral(PD(9),  PERIPH_A, 0); /* DATA15 */
1445                         select_peripheral(PD(10), PERIPH_A, 0); /* DATA16 */
1446                         select_peripheral(PD(11), PERIPH_A, 0); /* DATA17 */
1447                         select_peripheral(PD(12), PERIPH_A, 0); /* DATA18 */
1448                         select_peripheral(PD(13), PERIPH_A, 0); /* DATA19 */
1449                         select_peripheral(PD(14), PERIPH_A, 0); /* DATA20 */
1450                         select_peripheral(PD(15), PERIPH_A, 0); /* DATA21 */
1451                         select_peripheral(PD(16), PERIPH_A, 0); /* DATA22 */
1452                         select_peripheral(PD(17), PERIPH_A, 0); /* DATA23 */
1453                         break;
1454                 case 1:
1455                         select_peripheral(PE(0),  PERIPH_B, 0); /* CC     */
1456                         select_peripheral(PC(20), PERIPH_A, 0); /* HSYNC  */
1457                         select_peripheral(PC(21), PERIPH_A, 0); /* PCLK   */
1458                         select_peripheral(PC(22), PERIPH_A, 0); /* VSYNC  */
1459                         select_peripheral(PE(1),  PERIPH_B, 0); /* DVAL   */
1460                         select_peripheral(PE(2),  PERIPH_B, 0); /* MODE   */
1461                         select_peripheral(PC(25), PERIPH_A, 0); /* PWR    */
1462                         select_peripheral(PE(3),  PERIPH_B, 0); /* DATA0  */
1463                         select_peripheral(PE(4),  PERIPH_B, 0); /* DATA1  */
1464                         select_peripheral(PE(5),  PERIPH_B, 0); /* DATA2  */
1465                         select_peripheral(PE(6),  PERIPH_B, 0); /* DATA3  */
1466                         select_peripheral(PE(7),  PERIPH_B, 0); /* DATA4  */
1467                         select_peripheral(PC(31), PERIPH_A, 0); /* DATA5  */
1468                         select_peripheral(PD(0),  PERIPH_A, 0); /* DATA6  */
1469                         select_peripheral(PD(1),  PERIPH_A, 0); /* DATA7  */
1470                         select_peripheral(PE(8),  PERIPH_B, 0); /* DATA8  */
1471                         select_peripheral(PE(9),  PERIPH_B, 0); /* DATA9  */
1472                         select_peripheral(PE(10), PERIPH_B, 0); /* DATA10 */
1473                         select_peripheral(PE(11), PERIPH_B, 0); /* DATA11 */
1474                         select_peripheral(PE(12), PERIPH_B, 0); /* DATA12 */
1475                         select_peripheral(PD(7),  PERIPH_A, 0); /* DATA13 */
1476                         select_peripheral(PD(8),  PERIPH_A, 0); /* DATA14 */
1477                         select_peripheral(PD(9),  PERIPH_A, 0); /* DATA15 */
1478                         select_peripheral(PE(13), PERIPH_B, 0); /* DATA16 */
1479                         select_peripheral(PE(14), PERIPH_B, 0); /* DATA17 */
1480                         select_peripheral(PE(15), PERIPH_B, 0); /* DATA18 */
1481                         select_peripheral(PE(16), PERIPH_B, 0); /* DATA19 */
1482                         select_peripheral(PE(17), PERIPH_B, 0); /* DATA20 */
1483                         select_peripheral(PE(18), PERIPH_B, 0); /* DATA21 */
1484                         select_peripheral(PD(16), PERIPH_A, 0); /* DATA22 */
1485                         select_peripheral(PD(17), PERIPH_A, 0); /* DATA23 */
1486                         break;
1487                 default:
1488                         goto err_invalid_id;
1489                 }
1490
1491                 clk_set_parent(&atmel_lcdfb0_pixclk, &pll0);
1492                 clk_set_rate(&atmel_lcdfb0_pixclk, clk_get_rate(&pll0));
1493                 break;
1494
1495         default:
1496                 goto err_invalid_id;
1497         }
1498
1499         if (fbmem_len) {
1500                 pdev->resource[2].start = fbmem_start;
1501                 pdev->resource[2].end = fbmem_start + fbmem_len - 1;
1502                 pdev->resource[2].flags = IORESOURCE_MEM;
1503         }
1504
1505         info = pdev->dev.platform_data;
1506         memcpy(info, data, sizeof(struct atmel_lcdfb_info));
1507         info->default_monspecs = monspecs;
1508
1509         platform_device_register(pdev);
1510         return pdev;
1511
1512 err_invalid_id:
1513         kfree(modedb);
1514 err_dup_modedb:
1515         kfree(monspecs);
1516         return NULL;
1517 }
1518 #endif
1519
1520 /* --------------------------------------------------------------------
1521  *  PWM
1522  * -------------------------------------------------------------------- */
1523 static struct resource atmel_pwm0_resource[] __initdata = {
1524         PBMEM(0xfff01400),
1525         IRQ(24),
1526 };
1527 static struct clk atmel_pwm0_mck = {
1528         .name           = "pwm_clk",
1529         .parent         = &pbb_clk,
1530         .mode           = pbb_clk_mode,
1531         .get_rate       = pbb_clk_get_rate,
1532         .index          = 5,
1533 };
1534
1535 struct platform_device *__init at32_add_device_pwm(u32 mask)
1536 {
1537         struct platform_device *pdev;
1538
1539         if (!mask)
1540                 return NULL;
1541
1542         pdev = platform_device_alloc("atmel_pwm", 0);
1543         if (!pdev)
1544                 return NULL;
1545
1546         if (platform_device_add_resources(pdev, atmel_pwm0_resource,
1547                                 ARRAY_SIZE(atmel_pwm0_resource)))
1548                 goto out_free_pdev;
1549
1550         if (platform_device_add_data(pdev, &mask, sizeof(mask)))
1551                 goto out_free_pdev;
1552
1553         if (mask & (1 << 0))
1554                 select_peripheral(PA(28), PERIPH_A, 0);
1555         if (mask & (1 << 1))
1556                 select_peripheral(PA(29), PERIPH_A, 0);
1557         if (mask & (1 << 2))
1558                 select_peripheral(PA(21), PERIPH_B, 0);
1559         if (mask & (1 << 3))
1560                 select_peripheral(PA(22), PERIPH_B, 0);
1561
1562         atmel_pwm0_mck.dev = &pdev->dev;
1563
1564         platform_device_add(pdev);
1565
1566         return pdev;
1567
1568 out_free_pdev:
1569         platform_device_put(pdev);
1570         return NULL;
1571 }
1572
1573 /* --------------------------------------------------------------------
1574  *  SSC
1575  * -------------------------------------------------------------------- */
1576 static struct resource ssc0_resource[] = {
1577         PBMEM(0xffe01c00),
1578         IRQ(10),
1579 };
1580 DEFINE_DEV(ssc, 0);
1581 DEV_CLK(pclk, ssc0, pba, 7);
1582
1583 static struct resource ssc1_resource[] = {
1584         PBMEM(0xffe02000),
1585         IRQ(11),
1586 };
1587 DEFINE_DEV(ssc, 1);
1588 DEV_CLK(pclk, ssc1, pba, 8);
1589
1590 static struct resource ssc2_resource[] = {
1591         PBMEM(0xffe02400),
1592         IRQ(12),
1593 };
1594 DEFINE_DEV(ssc, 2);
1595 DEV_CLK(pclk, ssc2, pba, 9);
1596
1597 struct platform_device *__init
1598 at32_add_device_ssc(unsigned int id, unsigned int flags)
1599 {
1600         struct platform_device *pdev;
1601
1602         switch (id) {
1603         case 0:
1604                 pdev = &ssc0_device;
1605                 if (flags & ATMEL_SSC_RF)
1606                         select_peripheral(PA(21), PERIPH_A, 0); /* RF */
1607                 if (flags & ATMEL_SSC_RK)
1608                         select_peripheral(PA(22), PERIPH_A, 0); /* RK */
1609                 if (flags & ATMEL_SSC_TK)
1610                         select_peripheral(PA(23), PERIPH_A, 0); /* TK */
1611                 if (flags & ATMEL_SSC_TF)
1612                         select_peripheral(PA(24), PERIPH_A, 0); /* TF */
1613                 if (flags & ATMEL_SSC_TD)
1614                         select_peripheral(PA(25), PERIPH_A, 0); /* TD */
1615                 if (flags & ATMEL_SSC_RD)
1616                         select_peripheral(PA(26), PERIPH_A, 0); /* RD */
1617                 break;
1618         case 1:
1619                 pdev = &ssc1_device;
1620                 if (flags & ATMEL_SSC_RF)
1621                         select_peripheral(PA(0), PERIPH_B, 0);  /* RF */
1622                 if (flags & ATMEL_SSC_RK)
1623                         select_peripheral(PA(1), PERIPH_B, 0);  /* RK */
1624                 if (flags & ATMEL_SSC_TK)
1625                         select_peripheral(PA(2), PERIPH_B, 0);  /* TK */
1626                 if (flags & ATMEL_SSC_TF)
1627                         select_peripheral(PA(3), PERIPH_B, 0);  /* TF */
1628                 if (flags & ATMEL_SSC_TD)
1629                         select_peripheral(PA(4), PERIPH_B, 0);  /* TD */
1630                 if (flags & ATMEL_SSC_RD)
1631                         select_peripheral(PA(5), PERIPH_B, 0);  /* RD */
1632                 break;
1633         case 2:
1634                 pdev = &ssc2_device;
1635                 if (flags & ATMEL_SSC_TD)
1636                         select_peripheral(PB(13), PERIPH_A, 0); /* TD */
1637                 if (flags & ATMEL_SSC_RD)
1638                         select_peripheral(PB(14), PERIPH_A, 0); /* RD */
1639                 if (flags & ATMEL_SSC_TK)
1640                         select_peripheral(PB(15), PERIPH_A, 0); /* TK */
1641                 if (flags & ATMEL_SSC_TF)
1642                         select_peripheral(PB(16), PERIPH_A, 0); /* TF */
1643                 if (flags & ATMEL_SSC_RF)
1644                         select_peripheral(PB(17), PERIPH_A, 0); /* RF */
1645                 if (flags & ATMEL_SSC_RK)
1646                         select_peripheral(PB(18), PERIPH_A, 0); /* RK */
1647                 break;
1648         default:
1649                 return NULL;
1650         }
1651
1652         platform_device_register(pdev);
1653         return pdev;
1654 }
1655
1656 /* --------------------------------------------------------------------
1657  *  USB Device Controller
1658  * -------------------------------------------------------------------- */
1659 static struct resource usba0_resource[] __initdata = {
1660         {
1661                 .start          = 0xff300000,
1662                 .end            = 0xff3fffff,
1663                 .flags          = IORESOURCE_MEM,
1664         }, {
1665                 .start          = 0xfff03000,
1666                 .end            = 0xfff033ff,
1667                 .flags          = IORESOURCE_MEM,
1668         },
1669         IRQ(31),
1670 };
1671 static struct clk usba0_pclk = {
1672         .name           = "pclk",
1673         .parent         = &pbb_clk,
1674         .mode           = pbb_clk_mode,
1675         .get_rate       = pbb_clk_get_rate,
1676         .index          = 12,
1677 };
1678 static struct clk usba0_hclk = {
1679         .name           = "hclk",
1680         .parent         = &hsb_clk,
1681         .mode           = hsb_clk_mode,
1682         .get_rate       = hsb_clk_get_rate,
1683         .index          = 6,
1684 };
1685
1686 #define EP(nam, idx, maxpkt, maxbk, dma, isoc)                  \
1687         [idx] = {                                               \
1688                 .name           = nam,                          \
1689                 .index          = idx,                          \
1690                 .fifo_size      = maxpkt,                       \
1691                 .nr_banks       = maxbk,                        \
1692                 .can_dma        = dma,                          \
1693                 .can_isoc       = isoc,                         \
1694         }
1695
1696 static struct usba_ep_data at32_usba_ep[] __initdata = {
1697         EP("ep0",     0,   64, 1, 0, 0),
1698         EP("ep1",     1,  512, 2, 1, 1),
1699         EP("ep2",     2,  512, 2, 1, 1),
1700         EP("ep3-int", 3,   64, 3, 1, 0),
1701         EP("ep4-int", 4,   64, 3, 1, 0),
1702         EP("ep5",     5, 1024, 3, 1, 1),
1703         EP("ep6",     6, 1024, 3, 1, 1),
1704 };
1705
1706 #undef EP
1707
1708 struct platform_device *__init
1709 at32_add_device_usba(unsigned int id, struct usba_platform_data *data)
1710 {
1711         /*
1712          * pdata doesn't have room for any endpoints, so we need to
1713          * append room for the ones we need right after it.
1714          */
1715         struct {
1716                 struct usba_platform_data pdata;
1717                 struct usba_ep_data ep[7];
1718         } usba_data;
1719         struct platform_device *pdev;
1720
1721         if (id != 0)
1722                 return NULL;
1723
1724         pdev = platform_device_alloc("atmel_usba_udc", 0);
1725         if (!pdev)
1726                 return NULL;
1727
1728         if (platform_device_add_resources(pdev, usba0_resource,
1729                                           ARRAY_SIZE(usba0_resource)))
1730                 goto out_free_pdev;
1731
1732         if (data)
1733                 usba_data.pdata.vbus_pin = data->vbus_pin;
1734         else
1735                 usba_data.pdata.vbus_pin = -EINVAL;
1736
1737         data = &usba_data.pdata;
1738         data->num_ep = ARRAY_SIZE(at32_usba_ep);
1739         memcpy(data->ep, at32_usba_ep, sizeof(at32_usba_ep));
1740
1741         if (platform_device_add_data(pdev, data, sizeof(usba_data)))
1742                 goto out_free_pdev;
1743
1744         if (data->vbus_pin >= 0)
1745                 at32_select_gpio(data->vbus_pin, 0);
1746
1747         usba0_pclk.dev = &pdev->dev;
1748         usba0_hclk.dev = &pdev->dev;
1749
1750         platform_device_add(pdev);
1751
1752         return pdev;
1753
1754 out_free_pdev:
1755         platform_device_put(pdev);
1756         return NULL;
1757 }
1758
1759 /* --------------------------------------------------------------------
1760  * IDE / CompactFlash
1761  * -------------------------------------------------------------------- */
1762 #if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7001)
1763 static struct resource at32_smc_cs4_resource[] __initdata = {
1764         {
1765                 .start  = 0x04000000,
1766                 .end    = 0x07ffffff,
1767                 .flags  = IORESOURCE_MEM,
1768         },
1769         IRQ(~0UL), /* Magic IRQ will be overridden */
1770 };
1771 static struct resource at32_smc_cs5_resource[] __initdata = {
1772         {
1773                 .start  = 0x20000000,
1774                 .end    = 0x23ffffff,
1775                 .flags  = IORESOURCE_MEM,
1776         },
1777         IRQ(~0UL), /* Magic IRQ will be overridden */
1778 };
1779
1780 static int __init at32_init_ide_or_cf(struct platform_device *pdev,
1781                 unsigned int cs, unsigned int extint)
1782 {
1783         static unsigned int extint_pin_map[4] __initdata = {
1784                 GPIO_PIN_PB(25),
1785                 GPIO_PIN_PB(26),
1786                 GPIO_PIN_PB(27),
1787                 GPIO_PIN_PB(28),
1788         };
1789         static bool common_pins_initialized __initdata = false;
1790         unsigned int extint_pin;
1791         int ret;
1792
1793         if (extint >= ARRAY_SIZE(extint_pin_map))
1794                 return -EINVAL;
1795         extint_pin = extint_pin_map[extint];
1796
1797         switch (cs) {
1798         case 4:
1799                 ret = platform_device_add_resources(pdev,
1800                                 at32_smc_cs4_resource,
1801                                 ARRAY_SIZE(at32_smc_cs4_resource));
1802                 if (ret)
1803                         return ret;
1804
1805                 select_peripheral(PE(21), PERIPH_A, 0); /* NCS4   -> OE_N  */
1806                 hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_CF0_ENABLE);
1807                 break;
1808         case 5:
1809                 ret = platform_device_add_resources(pdev,
1810                                 at32_smc_cs5_resource,
1811                                 ARRAY_SIZE(at32_smc_cs5_resource));
1812                 if (ret)
1813                         return ret;
1814
1815                 select_peripheral(PE(22), PERIPH_A, 0); /* NCS5   -> OE_N  */
1816                 hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_CF1_ENABLE);
1817                 break;
1818         default:
1819                 return -EINVAL;
1820         }
1821
1822         if (!common_pins_initialized) {
1823                 select_peripheral(PE(19), PERIPH_A, 0); /* CFCE1  -> CS0_N */
1824                 select_peripheral(PE(20), PERIPH_A, 0); /* CFCE2  -> CS1_N */
1825                 select_peripheral(PE(23), PERIPH_A, 0); /* CFRNW  -> DIR   */
1826                 select_peripheral(PE(24), PERIPH_A, 0); /* NWAIT  <- IORDY */
1827                 common_pins_initialized = true;
1828         }
1829
1830         at32_select_periph(extint_pin, GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
1831
1832         pdev->resource[1].start = EIM_IRQ_BASE + extint;
1833         pdev->resource[1].end = pdev->resource[1].start;
1834
1835         return 0;
1836 }
1837
1838 struct platform_device *__init
1839 at32_add_device_ide(unsigned int id, unsigned int extint,
1840                     struct ide_platform_data *data)
1841 {
1842         struct platform_device *pdev;
1843
1844         pdev = platform_device_alloc("at32_ide", id);
1845         if (!pdev)
1846                 goto fail;
1847
1848         if (platform_device_add_data(pdev, data,
1849                                 sizeof(struct ide_platform_data)))
1850                 goto fail;
1851
1852         if (at32_init_ide_or_cf(pdev, data->cs, extint))
1853                 goto fail;
1854
1855         platform_device_add(pdev);
1856         return pdev;
1857
1858 fail:
1859         platform_device_put(pdev);
1860         return NULL;
1861 }
1862
1863 struct platform_device *__init
1864 at32_add_device_cf(unsigned int id, unsigned int extint,
1865                     struct cf_platform_data *data)
1866 {
1867         struct platform_device *pdev;
1868
1869         pdev = platform_device_alloc("at32_cf", id);
1870         if (!pdev)
1871                 goto fail;
1872
1873         if (platform_device_add_data(pdev, data,
1874                                 sizeof(struct cf_platform_data)))
1875                 goto fail;
1876
1877         if (at32_init_ide_or_cf(pdev, data->cs, extint))
1878                 goto fail;
1879
1880         if (gpio_is_valid(data->detect_pin))
1881                 at32_select_gpio(data->detect_pin, AT32_GPIOF_DEGLITCH);
1882         if (gpio_is_valid(data->reset_pin))
1883                 at32_select_gpio(data->reset_pin, 0);
1884         if (gpio_is_valid(data->vcc_pin))
1885                 at32_select_gpio(data->vcc_pin, 0);
1886         /* READY is used as extint, so we can't select it as gpio */
1887
1888         platform_device_add(pdev);
1889         return pdev;
1890
1891 fail:
1892         platform_device_put(pdev);
1893         return NULL;
1894 }
1895 #endif
1896
1897 /* --------------------------------------------------------------------
1898  * NAND Flash / SmartMedia
1899  * -------------------------------------------------------------------- */
1900 static struct resource smc_cs3_resource[] __initdata = {
1901         {
1902                 .start  = 0x0c000000,
1903                 .end    = 0x0fffffff,
1904                 .flags  = IORESOURCE_MEM,
1905         }, {
1906                 .start  = 0xfff03c00,
1907                 .end    = 0xfff03fff,
1908                 .flags  = IORESOURCE_MEM,
1909         },
1910 };
1911
1912 struct platform_device *__init
1913 at32_add_device_nand(unsigned int id, struct atmel_nand_data *data)
1914 {
1915         struct platform_device *pdev;
1916
1917         if (id != 0 || !data)
1918                 return NULL;
1919
1920         pdev = platform_device_alloc("atmel_nand", id);
1921         if (!pdev)
1922                 goto fail;
1923
1924         if (platform_device_add_resources(pdev, smc_cs3_resource,
1925                                 ARRAY_SIZE(smc_cs3_resource)))
1926                 goto fail;
1927
1928         if (platform_device_add_data(pdev, data,
1929                                 sizeof(struct atmel_nand_data)))
1930                 goto fail;
1931
1932         hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_NAND_ENABLE);
1933         if (data->enable_pin)
1934                 at32_select_gpio(data->enable_pin,
1935                                 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
1936         if (data->rdy_pin)
1937                 at32_select_gpio(data->rdy_pin, 0);
1938         if (data->det_pin)
1939                 at32_select_gpio(data->det_pin, 0);
1940
1941         platform_device_add(pdev);
1942         return pdev;
1943
1944 fail:
1945         platform_device_put(pdev);
1946         return NULL;
1947 }
1948
1949 /* --------------------------------------------------------------------
1950  * AC97C
1951  * -------------------------------------------------------------------- */
1952 static struct resource atmel_ac97c0_resource[] __initdata = {
1953         PBMEM(0xfff02800),
1954         IRQ(29),
1955 };
1956 static struct clk atmel_ac97c0_pclk = {
1957         .name           = "pclk",
1958         .parent         = &pbb_clk,
1959         .mode           = pbb_clk_mode,
1960         .get_rate       = pbb_clk_get_rate,
1961         .index          = 10,
1962 };
1963
1964 struct platform_device *__init
1965 at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data)
1966 {
1967         struct platform_device *pdev;
1968         struct ac97c_platform_data _data;
1969
1970         if (id != 0)
1971                 return NULL;
1972
1973         pdev = platform_device_alloc("atmel_ac97c", id);
1974         if (!pdev)
1975                 return NULL;
1976
1977         if (platform_device_add_resources(pdev, atmel_ac97c0_resource,
1978                                 ARRAY_SIZE(atmel_ac97c0_resource)))
1979                 goto fail;
1980
1981         if (!data) {
1982                 data = &_data;
1983                 memset(data, 0, sizeof(struct ac97c_platform_data));
1984                 data->reset_pin = GPIO_PIN_NONE;
1985         }
1986
1987         data->dma_rx_periph_id = 3;
1988         data->dma_tx_periph_id = 4;
1989         data->dma_controller_id = 0;
1990
1991         if (platform_device_add_data(pdev, data,
1992                                 sizeof(struct ac97c_platform_data)))
1993                 goto fail;
1994
1995         select_peripheral(PB(20), PERIPH_B, 0); /* SDO  */
1996         select_peripheral(PB(21), PERIPH_B, 0); /* SYNC */
1997         select_peripheral(PB(22), PERIPH_B, 0); /* SCLK */
1998         select_peripheral(PB(23), PERIPH_B, 0); /* SDI  */
1999
2000         /* TODO: gpio_is_valid(data->reset_pin) with kernel 2.6.26. */
2001         if (data->reset_pin != GPIO_PIN_NONE)
2002                 at32_select_gpio(data->reset_pin, 0);
2003
2004         atmel_ac97c0_pclk.dev = &pdev->dev;
2005
2006         platform_device_add(pdev);
2007         return pdev;
2008
2009 fail:
2010         platform_device_put(pdev);
2011         return NULL;
2012 }
2013
2014 /* --------------------------------------------------------------------
2015  * ABDAC
2016  * -------------------------------------------------------------------- */
2017 static struct resource abdac0_resource[] __initdata = {
2018         PBMEM(0xfff02000),
2019         IRQ(27),
2020 };
2021 static struct clk abdac0_pclk = {
2022         .name           = "pclk",
2023         .parent         = &pbb_clk,
2024         .mode           = pbb_clk_mode,
2025         .get_rate       = pbb_clk_get_rate,
2026         .index          = 8,
2027 };
2028 static struct clk abdac0_sample_clk = {
2029         .name           = "sample_clk",
2030         .mode           = genclk_mode,
2031         .get_rate       = genclk_get_rate,
2032         .set_rate       = genclk_set_rate,
2033         .set_parent     = genclk_set_parent,
2034         .index          = 6,
2035 };
2036
2037 struct platform_device *__init at32_add_device_abdac(unsigned int id)
2038 {
2039         struct platform_device *pdev;
2040
2041         if (id != 0)
2042                 return NULL;
2043
2044         pdev = platform_device_alloc("abdac", id);
2045         if (!pdev)
2046                 return NULL;
2047
2048         if (platform_device_add_resources(pdev, abdac0_resource,
2049                                 ARRAY_SIZE(abdac0_resource)))
2050                 goto err_add_resources;
2051
2052         select_peripheral(PB(20), PERIPH_A, 0); /* DATA1        */
2053         select_peripheral(PB(21), PERIPH_A, 0); /* DATA0        */
2054         select_peripheral(PB(22), PERIPH_A, 0); /* DATAN1       */
2055         select_peripheral(PB(23), PERIPH_A, 0); /* DATAN0       */
2056
2057         abdac0_pclk.dev = &pdev->dev;
2058         abdac0_sample_clk.dev = &pdev->dev;
2059
2060         platform_device_add(pdev);
2061         return pdev;
2062
2063 err_add_resources:
2064         platform_device_put(pdev);
2065         return NULL;
2066 }
2067
2068 /* --------------------------------------------------------------------
2069  *  GCLK
2070  * -------------------------------------------------------------------- */
2071 static struct clk gclk0 = {
2072         .name           = "gclk0",
2073         .mode           = genclk_mode,
2074         .get_rate       = genclk_get_rate,
2075         .set_rate       = genclk_set_rate,
2076         .set_parent     = genclk_set_parent,
2077         .index          = 0,
2078 };
2079 static struct clk gclk1 = {
2080         .name           = "gclk1",
2081         .mode           = genclk_mode,
2082         .get_rate       = genclk_get_rate,
2083         .set_rate       = genclk_set_rate,
2084         .set_parent     = genclk_set_parent,
2085         .index          = 1,
2086 };
2087 static struct clk gclk2 = {
2088         .name           = "gclk2",
2089         .mode           = genclk_mode,
2090         .get_rate       = genclk_get_rate,
2091         .set_rate       = genclk_set_rate,
2092         .set_parent     = genclk_set_parent,
2093         .index          = 2,
2094 };
2095 static struct clk gclk3 = {
2096         .name           = "gclk3",
2097         .mode           = genclk_mode,
2098         .get_rate       = genclk_get_rate,
2099         .set_rate       = genclk_set_rate,
2100         .set_parent     = genclk_set_parent,
2101         .index          = 3,
2102 };
2103 static struct clk gclk4 = {
2104         .name           = "gclk4",
2105         .mode           = genclk_mode,
2106         .get_rate       = genclk_get_rate,
2107         .set_rate       = genclk_set_rate,
2108         .set_parent     = genclk_set_parent,
2109         .index          = 4,
2110 };
2111
2112 struct clk *at32_clock_list[] = {
2113         &osc32k,
2114         &osc0,
2115         &osc1,
2116         &pll0,
2117         &pll1,
2118         &cpu_clk,
2119         &hsb_clk,
2120         &pba_clk,
2121         &pbb_clk,
2122         &at32_pm_pclk,
2123         &at32_intc0_pclk,
2124         &at32_hmatrix_clk,
2125         &ebi_clk,
2126         &hramc_clk,
2127         &sdramc_clk,
2128         &smc0_pclk,
2129         &smc0_mck,
2130         &pdc_hclk,
2131         &pdc_pclk,
2132         &dw_dmac0_hclk,
2133         &pico_clk,
2134         &pio0_mck,
2135         &pio1_mck,
2136         &pio2_mck,
2137         &pio3_mck,
2138         &pio4_mck,
2139         &at32_tcb0_t0_clk,
2140         &at32_tcb1_t0_clk,
2141         &atmel_psif0_pclk,
2142         &atmel_psif1_pclk,
2143         &atmel_usart0_usart,
2144         &atmel_usart1_usart,
2145         &atmel_usart2_usart,
2146         &atmel_usart3_usart,
2147         &atmel_pwm0_mck,
2148 #if defined(CONFIG_CPU_AT32AP7000)
2149         &macb0_hclk,
2150         &macb0_pclk,
2151         &macb1_hclk,
2152         &macb1_pclk,
2153 #endif
2154         &atmel_spi0_spi_clk,
2155         &atmel_spi1_spi_clk,
2156         &atmel_twi0_pclk,
2157         &atmel_mci0_pclk,
2158 #if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
2159         &atmel_lcdfb0_hck1,
2160         &atmel_lcdfb0_pixclk,
2161 #endif
2162         &ssc0_pclk,
2163         &ssc1_pclk,
2164         &ssc2_pclk,
2165         &usba0_hclk,
2166         &usba0_pclk,
2167         &atmel_ac97c0_pclk,
2168         &abdac0_pclk,
2169         &abdac0_sample_clk,
2170         &gclk0,
2171         &gclk1,
2172         &gclk2,
2173         &gclk3,
2174         &gclk4,
2175 };
2176 unsigned int at32_nr_clocks = ARRAY_SIZE(at32_clock_list);
2177
2178 void __init setup_platform(void)
2179 {
2180         u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0;
2181         int i;
2182
2183         if (pm_readl(MCCTRL) & PM_BIT(PLLSEL)) {
2184                 main_clock = &pll0;
2185                 cpu_clk.parent = &pll0;
2186         } else {
2187                 main_clock = &osc0;
2188                 cpu_clk.parent = &osc0;
2189         }
2190
2191         if (pm_readl(PLL0) & PM_BIT(PLLOSC))
2192                 pll0.parent = &osc1;
2193         if (pm_readl(PLL1) & PM_BIT(PLLOSC))
2194                 pll1.parent = &osc1;
2195
2196         genclk_init_parent(&gclk0);
2197         genclk_init_parent(&gclk1);
2198         genclk_init_parent(&gclk2);
2199         genclk_init_parent(&gclk3);
2200         genclk_init_parent(&gclk4);
2201 #if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
2202         genclk_init_parent(&atmel_lcdfb0_pixclk);
2203 #endif
2204         genclk_init_parent(&abdac0_sample_clk);
2205
2206         /*
2207          * Turn on all clocks that have at least one user already, and
2208          * turn off everything else. We only do this for module
2209          * clocks, and even though it isn't particularly pretty to
2210          * check the address of the mode function, it should do the
2211          * trick...
2212          */
2213         for (i = 0; i < ARRAY_SIZE(at32_clock_list); i++) {
2214                 struct clk *clk = at32_clock_list[i];
2215
2216                 if (clk->users == 0)
2217                         continue;
2218
2219                 if (clk->mode == &cpu_clk_mode)
2220                         cpu_mask |= 1 << clk->index;
2221                 else if (clk->mode == &hsb_clk_mode)
2222                         hsb_mask |= 1 << clk->index;
2223                 else if (clk->mode == &pba_clk_mode)
2224                         pba_mask |= 1 << clk->index;
2225                 else if (clk->mode == &pbb_clk_mode)
2226                         pbb_mask |= 1 << clk->index;
2227         }
2228
2229         pm_writel(CPU_MASK, cpu_mask);
2230         pm_writel(HSB_MASK, hsb_mask);
2231         pm_writel(PBA_MASK, pba_mask);
2232         pm_writel(PBB_MASK, pbb_mask);
2233
2234         /* Initialize the port muxes */
2235         at32_init_pio(&pio0_device);
2236         at32_init_pio(&pio1_device);
2237         at32_init_pio(&pio2_device);
2238         at32_init_pio(&pio3_device);
2239         at32_init_pio(&pio4_device);
2240 }
2241
2242 struct gen_pool *sram_pool;
2243
2244 static int __init sram_init(void)
2245 {
2246         struct gen_pool *pool;
2247
2248         /* 1KiB granularity */
2249         pool = gen_pool_create(10, -1);
2250         if (!pool)
2251                 goto fail;
2252
2253         if (gen_pool_add(pool, 0x24000000, 0x8000, -1))
2254                 goto err_pool_add;
2255
2256         sram_pool = pool;
2257         return 0;
2258
2259 err_pool_add:
2260         gen_pool_destroy(pool);
2261 fail:
2262         pr_err("Failed to create SRAM pool\n");
2263         return -ENOMEM;
2264 }
2265 core_initcall(sram_init);