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/slab.h> 16#include <linux/gpio.h> 17#include <linux/spi/spi.h> 18#include <linux/usb/atmel_usba_udc.h> 19 20#include <mach/atmel-mci.h> 21#include <linux/atmel-mci.h> 22 23#include <asm/io.h> 24#include <asm/irq.h> 25 26#include <mach/at32ap700x.h> 27#include <mach/board.h> 28#include <mach/hmatrix.h> 29#include <mach/portmux.h> 30#include <mach/sram.h> 31 32#include <sound/atmel-abdac.h> 33#include <sound/atmel-ac97c.h> 34 35#include <video/atmel_lcdc.h> 36 37#include "clock.h" 38#include "pio.h" 39#include "pm.h" 40 41 42#define PBMEM(base) \ 43 { \ 44 .start = base, \ 45 .end = base + 0x3ff, \ 46 .flags = IORESOURCE_MEM, \ 47 } 48#define IRQ(num) \ 49 { \ 50 .start = num, \ 51 .end = num, \ 52 .flags = IORESOURCE_IRQ, \ 53 } 54#define NAMED_IRQ(num, _name) \ 55 { \ 56 .start = num, \ 57 .end = num, \ 58 .name = _name, \ 59 .flags = IORESOURCE_IRQ, \ 60 } 61 62/* REVISIT these assume *every* device supports DMA, but several 63 * don't ... tc, smc, pio, rtc, watchdog, pwm, ps2, and more. 64 */ 65#define DEFINE_DEV(_name, _id) \ 66static u64 _name##_id##_dma_mask = DMA_BIT_MASK(32); \ 67static struct platform_device _name##_id##_device = { \ 68 .name = #_name, \ 69 .id = _id, \ 70 .dev = { \ 71 .dma_mask = &_name##_id##_dma_mask, \ 72 .coherent_dma_mask = DMA_BIT_MASK(32), \ 73 }, \ 74 .resource = _name##_id##_resource, \ 75 .num_resources = ARRAY_SIZE(_name##_id##_resource), \ 76} 77#define DEFINE_DEV_DATA(_name, _id) \ 78static u64 _name##_id##_dma_mask = DMA_BIT_MASK(32); \ 79static struct platform_device _name##_id##_device = { \ 80 .name = #_name, \ 81 .id = _id, \ 82 .dev = { \ 83 .dma_mask = &_name##_id##_dma_mask, \ 84 .platform_data = &_name##_id##_data, \ 85 .coherent_dma_mask = DMA_BIT_MASK(32), \ 86 }, \ 87 .resource = _name##_id##_resource, \ 88 .num_resources = ARRAY_SIZE(_name##_id##_resource), \ 89} 90 91#define select_peripheral(port, pin_mask, periph, flags) \ 92 at32_select_periph(GPIO_##port##_BASE, pin_mask, \ 93 GPIO_##periph, flags) 94 95#define DEV_CLK(_name, devname, bus, _index) \ 96static struct clk devname##_##_name = { \ 97 .name = #_name, \ 98 .dev = &devname##_device.dev, \ 99 .parent = &bus##_clk, \ 100 .mode = bus##_clk_mode, \ 101 .get_rate = bus##_clk_get_rate, \ 102 .index = _index, \ 103} 104 105static DEFINE_SPINLOCK(pm_lock); 106 107static struct clk osc0; 108static struct clk osc1; 109 110static unsigned long osc_get_rate(struct clk *clk) 111{ 112 return at32_board_osc_rates[clk->index]; 113} 114 115static unsigned long pll_get_rate(struct clk *clk, unsigned long control) 116{ 117 unsigned long div, mul, rate; 118 119 div = PM_BFEXT(PLLDIV, control) + 1; 120 mul = PM_BFEXT(PLLMUL, control) + 1; 121 122 rate = clk->parent->get_rate(clk->parent); 123 rate = (rate + div / 2) / div; 124 rate *= mul; 125 126 return rate; 127} 128 129static long pll_set_rate(struct clk *clk, unsigned long rate, 130 u32 *pll_ctrl) 131{ 132 unsigned long mul; 133 unsigned long mul_best_fit = 0; 134 unsigned long div; 135 unsigned long div_min; 136 unsigned long div_max; 137 unsigned long div_best_fit = 0; 138 unsigned long base; 139 unsigned long pll_in; 140 unsigned long actual = 0; 141 unsigned long rate_error; 142 unsigned long rate_error_prev = ~0UL; 143 u32 ctrl; 144 145 /* Rate must be between 80 MHz and 200 Mhz. */ 146 if (rate < 80000000UL || rate > 200000000UL) 147 return -EINVAL; 148 149 ctrl = PM_BF(PLLOPT, 4); 150 base = clk->parent->get_rate(clk->parent); 151 152 /* PLL input frequency must be between 6 MHz and 32 MHz. */ 153 div_min = DIV_ROUND_UP(base, 32000000UL); 154 div_max = base / 6000000UL; 155 156 if (div_max < div_min) 157 return -EINVAL; 158 159 for (div = div_min; div <= div_max; div++) { 160 pll_in = (base + div / 2) / div; 161 mul = (rate + pll_in / 2) / pll_in; 162 163 if (mul == 0) 164 continue; 165 166 actual = pll_in * mul; 167 rate_error = abs(actual - rate); 168 169 if (rate_error < rate_error_prev) { 170 mul_best_fit = mul; 171 div_best_fit = div; 172 rate_error_prev = rate_error; 173 } 174 175 if (rate_error == 0) 176 break; 177 } 178 179 if (div_best_fit == 0) 180 return -EINVAL; 181 182 ctrl |= PM_BF(PLLMUL, mul_best_fit - 1); 183 ctrl |= PM_BF(PLLDIV, div_best_fit - 1); 184 ctrl |= PM_BF(PLLCOUNT, 16); 185 186 if (clk->parent == &osc1) 187 ctrl |= PM_BIT(PLLOSC); 188 189 *pll_ctrl = ctrl; 190 191 return actual; 192} 193 194static unsigned long pll0_get_rate(struct clk *clk) 195{ 196 u32 control; 197 198 control = pm_readl(PLL0); 199 200 return pll_get_rate(clk, control); 201} 202 203static void pll1_mode(struct clk *clk, int enabled) 204{ 205 unsigned long timeout; 206 u32 status; 207 u32 ctrl; 208 209 ctrl = pm_readl(PLL1); 210 211 if (enabled) { 212 if (!PM_BFEXT(PLLMUL, ctrl) && !PM_BFEXT(PLLDIV, ctrl)) { 213 pr_debug("clk %s: failed to enable, rate not set\n", 214 clk->name); 215 return; 216 } 217 218 ctrl |= PM_BIT(PLLEN); 219 pm_writel(PLL1, ctrl); 220 221 /* Wait for PLL lock. */ 222 for (timeout = 10000; timeout; timeout--) { 223 status = pm_readl(ISR); 224 if (status & PM_BIT(LOCK1)) 225 break; 226 udelay(10); 227 } 228 229 if (!(status & PM_BIT(LOCK1))) 230 printk(KERN_ERR "clk %s: timeout waiting for lock\n", 231 clk->name); 232 } else { 233 ctrl &= ~PM_BIT(PLLEN); 234 pm_writel(PLL1, ctrl); 235 } 236} 237 238static unsigned long pll1_get_rate(struct clk *clk) 239{ 240 u32 control; 241 242 control = pm_readl(PLL1); 243 244 return pll_get_rate(clk, control); 245} 246 247static long pll1_set_rate(struct clk *clk, unsigned long rate, int apply) 248{ 249 u32 ctrl = 0; 250 unsigned long actual_rate; 251 252 actual_rate = pll_set_rate(clk, rate, &ctrl); 253 254 if (apply) { 255 if (actual_rate != rate) 256 return -EINVAL; 257 if (clk->users > 0) 258 return -EBUSY; 259 pr_debug(KERN_INFO "clk %s: new rate %lu (actual rate %lu)\n", 260 clk->name, rate, actual_rate); 261 pm_writel(PLL1, ctrl); 262 } 263 264 return actual_rate; 265} 266 267static int pll1_set_parent(struct clk *clk, struct clk *parent) 268{ 269 u32 ctrl; 270 271 if (clk->users > 0) 272 return -EBUSY; 273 274 ctrl = pm_readl(PLL1); 275 WARN_ON(ctrl & PM_BIT(PLLEN)); 276 277 if (parent == &osc0) 278 ctrl &= ~PM_BIT(PLLOSC); 279 else if (parent == &osc1) 280 ctrl |= PM_BIT(PLLOSC); 281 else 282 return -EINVAL; 283 284 pm_writel(PLL1, ctrl); 285 clk->parent = parent; 286 287 return 0; 288} 289 290/* 291 * The AT32AP7000 has five primary clock sources: One 32kHz 292 * oscillator, two crystal oscillators and two PLLs. 293 */ 294static struct clk osc32k = { 295 .name = "osc32k", 296 .get_rate = osc_get_rate, 297 .users = 1, 298 .index = 0, 299}; 300static struct clk osc0 = { 301 .name = "osc0", 302 .get_rate = osc_get_rate, 303 .users = 1, 304 .index = 1, 305}; 306static struct clk osc1 = { 307 .name = "osc1", 308 .get_rate = osc_get_rate, 309 .index = 2, 310}; 311static struct clk pll0 = { 312 .name = "pll0", 313 .get_rate = pll0_get_rate, 314 .parent = &osc0, 315}; 316static struct clk pll1 = { 317 .name = "pll1", 318 .mode = pll1_mode, 319 .get_rate = pll1_get_rate, 320 .set_rate = pll1_set_rate, 321 .set_parent = pll1_set_parent, 322 .parent = &osc0, 323}; 324 325/* 326 * The main clock can be either osc0 or pll0. The boot loader may 327 * have chosen one for us, so we don't really know which one until we 328 * have a look at the SM. 329 */ 330static struct clk *main_clock; 331 332/* 333 * Synchronous clocks are generated from the main clock. The clocks 334 * must satisfy the constraint 335 * fCPU >= fHSB >= fPB 336 * i.e. each clock must not be faster than its parent. 337 */ 338static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift) 339{ 340 return main_clock->get_rate(main_clock) >> shift; 341}; 342 343static void cpu_clk_mode(struct clk *clk, int enabled) 344{ 345 unsigned long flags; 346 u32 mask; 347 348 spin_lock_irqsave(&pm_lock, flags); 349 mask = pm_readl(CPU_MASK); 350 if (enabled) 351 mask |= 1 << clk->index; 352 else 353 mask &= ~(1 << clk->index); 354 pm_writel(CPU_MASK, mask); 355 spin_unlock_irqrestore(&pm_lock, flags); 356} 357 358static unsigned long cpu_clk_get_rate(struct clk *clk) 359{ 360 unsigned long cksel, shift = 0; 361 362 cksel = pm_readl(CKSEL); 363 if (cksel & PM_BIT(CPUDIV)) 364 shift = PM_BFEXT(CPUSEL, cksel) + 1; 365 366 return bus_clk_get_rate(clk, shift); 367} 368 369static long cpu_clk_set_rate(struct clk *clk, unsigned long rate, int apply) 370{ 371 u32 control; 372 unsigned long parent_rate, child_div, actual_rate, div; 373 374 parent_rate = clk->parent->get_rate(clk->parent); 375 control = pm_readl(CKSEL); 376 377 if (control & PM_BIT(HSBDIV)) 378 child_div = 1 << (PM_BFEXT(HSBSEL, control) + 1); 379 else 380 child_div = 1; 381 382 if (rate > 3 * (parent_rate / 4) || child_div == 1) { 383 actual_rate = parent_rate; 384 control &= ~PM_BIT(CPUDIV); 385 } else { 386 unsigned int cpusel; 387 div = (parent_rate + rate / 2) / rate; 388 if (div > child_div) 389 div = child_div; 390 cpusel = (div > 1) ? (fls(div) - 2) : 0; 391 control = PM_BIT(CPUDIV) | PM_BFINS(CPUSEL, cpusel, control); 392 actual_rate = parent_rate / (1 << (cpusel + 1)); 393 } 394 395 pr_debug("clk %s: new rate %lu (actual rate %lu)\n", 396 clk->name, rate, actual_rate); 397 398 if (apply) 399 pm_writel(CKSEL, control); 400 401 return actual_rate; 402} 403 404static void hsb_clk_mode(struct clk *clk, int enabled) 405{ 406 unsigned long flags; 407 u32 mask; 408 409 spin_lock_irqsave(&pm_lock, flags); 410 mask = pm_readl(HSB_MASK); 411 if (enabled) 412 mask |= 1 << clk->index; 413 else 414 mask &= ~(1 << clk->index); 415 pm_writel(HSB_MASK, mask); 416 spin_unlock_irqrestore(&pm_lock, flags); 417} 418 419static unsigned long hsb_clk_get_rate(struct clk *clk) 420{ 421 unsigned long cksel, shift = 0; 422 423 cksel = pm_readl(CKSEL); 424 if (cksel & PM_BIT(HSBDIV)) 425 shift = PM_BFEXT(HSBSEL, cksel) + 1; 426 427 return bus_clk_get_rate(clk, shift); 428} 429 430void pba_clk_mode(struct clk *clk, int enabled) 431{ 432 unsigned long flags; 433 u32 mask; 434 435 spin_lock_irqsave(&pm_lock, flags); 436 mask = pm_readl(PBA_MASK); 437 if (enabled) 438 mask |= 1 << clk->index; 439 else 440 mask &= ~(1 << clk->index); 441 pm_writel(PBA_MASK, mask); 442 spin_unlock_irqrestore(&pm_lock, flags); 443} 444 445unsigned long pba_clk_get_rate(struct clk *clk) 446{ 447 unsigned long cksel, shift = 0; 448 449 cksel = pm_readl(CKSEL); 450 if (cksel & PM_BIT(PBADIV)) 451 shift = PM_BFEXT(PBASEL, cksel) + 1; 452 453 return bus_clk_get_rate(clk, shift); 454} 455 456static void pbb_clk_mode(struct clk *clk, int enabled) 457{ 458 unsigned long flags; 459 u32 mask; 460 461 spin_lock_irqsave(&pm_lock, flags); 462 mask = pm_readl(PBB_MASK); 463 if (enabled) 464 mask |= 1 << clk->index; 465 else 466 mask &= ~(1 << clk->index); 467 pm_writel(PBB_MASK, mask); 468 spin_unlock_irqrestore(&pm_lock, flags); 469} 470 471static unsigned long pbb_clk_get_rate(struct clk *clk) 472{ 473 unsigned long cksel, shift = 0; 474 475 cksel = pm_readl(CKSEL); 476 if (cksel & PM_BIT(PBBDIV)) 477 shift = PM_BFEXT(PBBSEL, cksel) + 1; 478 479 return bus_clk_get_rate(clk, shift); 480} 481 482static struct clk cpu_clk = { 483 .name = "cpu", 484 .get_rate = cpu_clk_get_rate, 485 .set_rate = cpu_clk_set_rate, 486 .users = 1, 487}; 488static struct clk hsb_clk = { 489 .name = "hsb", 490 .parent = &cpu_clk, 491 .get_rate = hsb_clk_get_rate, 492}; 493static struct clk pba_clk = { 494 .name = "pba", 495 .parent = &hsb_clk, 496 .mode = hsb_clk_mode, 497 .get_rate = pba_clk_get_rate, 498 .index = 1, 499}; 500static struct clk pbb_clk = { 501 .name = "pbb", 502 .parent = &hsb_clk, 503 .mode = hsb_clk_mode, 504 .get_rate = pbb_clk_get_rate, 505 .users = 1, 506 .index = 2, 507}; 508 509/* -------------------------------------------------------------------- 510 * Generic Clock operations 511 * -------------------------------------------------------------------- */ 512 513static void genclk_mode(struct clk *clk, int enabled) 514{ 515 u32 control; 516 517 control = pm_readl(GCCTRL(clk->index)); 518 if (enabled) 519 control |= PM_BIT(CEN); 520 else 521 control &= ~PM_BIT(CEN); 522 pm_writel(GCCTRL(clk->index), control); 523} 524 525static unsigned long genclk_get_rate(struct clk *clk) 526{ 527 u32 control; 528 unsigned long div = 1; 529 530 control = pm_readl(GCCTRL(clk->index)); 531 if (control & PM_BIT(DIVEN)) 532 div = 2 * (PM_BFEXT(DIV, control) + 1); 533 534 return clk->parent->get_rate(clk->parent) / div; 535} 536 537static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply) 538{ 539 u32 control; 540 unsigned long parent_rate, actual_rate, div; 541 542 parent_rate = clk->parent->get_rate(clk->parent); 543 control = pm_readl(GCCTRL(clk->index)); 544 545 if (rate > 3 * parent_rate / 4) { 546 actual_rate = parent_rate; 547 control &= ~PM_BIT(DIVEN); 548 } else { 549 div = (parent_rate + rate) / (2 * rate) - 1; 550 control = PM_BFINS(DIV, div, control) | PM_BIT(DIVEN); 551 actual_rate = parent_rate / (2 * (div + 1)); 552 } 553 554 dev_dbg(clk->dev, "clk %s: new rate %lu (actual rate %lu)\n", 555 clk->name, rate, actual_rate); 556 557 if (apply) 558 pm_writel(GCCTRL(clk->index), control); 559 560 return actual_rate; 561} 562 563int genclk_set_parent(struct clk *clk, struct clk *parent) 564{ 565 u32 control; 566 567 dev_dbg(clk->dev, "clk %s: new parent %s (was %s)\n", 568 clk->name, parent->name, clk->parent->name); 569 570 control = pm_readl(GCCTRL(clk->index)); 571 572 if (parent == &osc1 || parent == &pll1) 573 control |= PM_BIT(OSCSEL); 574 else if (parent == &osc0 || parent == &pll0) 575 control &= ~PM_BIT(OSCSEL); 576 else 577 return -EINVAL; 578 579 if (parent == &pll0 || parent == &pll1) 580 control |= PM_BIT(PLLSEL); 581 else 582 control &= ~PM_BIT(PLLSEL); 583 584 pm_writel(GCCTRL(clk->index), control); 585 clk->parent = parent; 586 587 return 0; 588} 589 590static void __init genclk_init_parent(struct clk *clk) 591{ 592 u32 control; 593 struct clk *parent; 594 595 BUG_ON(clk->index > 7); 596 597 control = pm_readl(GCCTRL(clk->index)); 598 if (control & PM_BIT(OSCSEL)) 599 parent = (control & PM_BIT(PLLSEL)) ? &pll1 : &osc1; 600 else 601 parent = (control & PM_BIT(PLLSEL)) ? &pll0 : &osc0; 602 603 clk->parent = parent; 604} 605 606static struct dw_dma_platform_data dw_dmac0_data = { 607 .nr_channels = 3, 608}; 609 610static struct resource dw_dmac0_resource[] = { 611 PBMEM(0xff200000), 612 IRQ(2), 613}; 614DEFINE_DEV_DATA(dw_dmac, 0); 615DEV_CLK(hclk, dw_dmac0, hsb, 10); 616 617/* -------------------------------------------------------------------- 618 * System peripherals 619 * -------------------------------------------------------------------- */ 620static struct resource at32_pm0_resource[] = { 621 { 622 .start = 0xfff00000, 623 .end = 0xfff0007f, 624 .flags = IORESOURCE_MEM, 625 }, 626 IRQ(20), 627}; 628 629static struct resource at32ap700x_rtc0_resource[] = { 630 { 631 .start = 0xfff00080, 632 .end = 0xfff000af, 633 .flags = IORESOURCE_MEM, 634 }, 635 IRQ(21), 636}; 637 638static struct resource at32_wdt0_resource[] = { 639 { 640 .start = 0xfff000b0, 641 .end = 0xfff000cf, 642 .flags = IORESOURCE_MEM, 643 }, 644}; 645 646static struct resource at32_eic0_resource[] = { 647 { 648 .start = 0xfff00100, 649 .end = 0xfff0013f, 650 .flags = IORESOURCE_MEM, 651 }, 652 IRQ(19), 653}; 654 655DEFINE_DEV(at32_pm, 0); 656DEFINE_DEV(at32ap700x_rtc, 0); 657DEFINE_DEV(at32_wdt, 0); 658DEFINE_DEV(at32_eic, 0); 659 660/* 661 * Peripheral clock for PM, RTC, WDT and EIC. PM will ensure that this 662 * is always running. 663 */ 664static struct clk at32_pm_pclk = { 665 .name = "pclk", 666 .dev = &at32_pm0_device.dev, 667 .parent = &pbb_clk, 668 .mode = pbb_clk_mode, 669 .get_rate = pbb_clk_get_rate, 670 .users = 1, 671 .index = 0, 672}; 673 674static struct resource intc0_resource[] = { 675 PBMEM(0xfff00400), 676}; 677struct platform_device at32_intc0_device = { 678 .name = "intc", 679 .id = 0, 680 .resource = intc0_resource, 681 .num_resources = ARRAY_SIZE(intc0_resource), 682}; 683DEV_CLK(pclk, at32_intc0, pbb, 1); 684 685static struct clk ebi_clk = { 686 .name = "ebi", 687 .parent = &hsb_clk, 688 .mode = hsb_clk_mode, 689 .get_rate = hsb_clk_get_rate, 690 .users = 1, 691}; 692static struct clk hramc_clk = { 693 .name = "hramc", 694 .parent = &hsb_clk, 695 .mode = hsb_clk_mode, 696 .get_rate = hsb_clk_get_rate, 697 .users = 1, 698 .index = 3, 699}; 700static struct clk sdramc_clk = { 701 .name = "sdramc_clk", 702 .parent = &pbb_clk, 703 .mode = pbb_clk_mode, 704 .get_rate = pbb_clk_get_rate, 705 .users = 1, 706 .index = 14, 707}; 708 709static struct resource smc0_resource[] = { 710 PBMEM(0xfff03400), 711}; 712DEFINE_DEV(smc, 0); 713DEV_CLK(pclk, smc0, pbb, 13); 714DEV_CLK(mck, smc0, hsb, 0); 715 716static struct platform_device pdc_device = { 717 .name = "pdc", 718 .id = 0, 719}; 720DEV_CLK(hclk, pdc, hsb, 4); 721DEV_CLK(pclk, pdc, pba, 16); 722 723static struct clk pico_clk = { 724 .name = "pico", 725 .parent = &cpu_clk, 726 .mode = cpu_clk_mode, 727 .get_rate = cpu_clk_get_rate, 728 .users = 1, 729}; 730 731/* -------------------------------------------------------------------- 732 * HMATRIX 733 * -------------------------------------------------------------------- */ 734 735struct clk at32_hmatrix_clk = { 736 .name = "hmatrix_clk", 737 .parent = &pbb_clk, 738 .mode = pbb_clk_mode, 739 .get_rate = pbb_clk_get_rate, 740 .index = 2, 741 .users = 1, 742}; 743 744/* 745 * Set bits in the HMATRIX Special Function Register (SFR) used by the 746 * External Bus Interface (EBI). This can be used to enable special 747 * features like CompactFlash support, NAND Flash support, etc. on 748 * certain chipselects. 749 */ 750static inline void set_ebi_sfr_bits(u32 mask) 751{ 752 hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, mask); 753} 754 755/* -------------------------------------------------------------------- 756 * Timer/Counter (TC) 757 * -------------------------------------------------------------------- */ 758 759static struct resource at32_tcb0_resource[] = { 760 PBMEM(0xfff00c00), 761 IRQ(22), 762}; 763static struct platform_device at32_tcb0_device = { 764 .name = "atmel_tcb", 765 .id = 0, 766 .resource = at32_tcb0_resource, 767 .num_resources = ARRAY_SIZE(at32_tcb0_resource), 768}; 769DEV_CLK(t0_clk, at32_tcb0, pbb, 3); 770 771static struct resource at32_tcb1_resource[] = { 772 PBMEM(0xfff01000), 773 IRQ(23), 774}; 775static struct platform_device at32_tcb1_device = { 776 .name = "atmel_tcb", 777 .id = 1, 778 .resource = at32_tcb1_resource, 779 .num_resources = ARRAY_SIZE(at32_tcb1_resource), 780}; 781DEV_CLK(t0_clk, at32_tcb1, pbb, 4); 782 783/* -------------------------------------------------------------------- 784 * PIO 785 * -------------------------------------------------------------------- */ 786 787static struct resource pio0_resource[] = { 788 PBMEM(0xffe02800), 789 IRQ(13), 790}; 791DEFINE_DEV(pio, 0); 792DEV_CLK(mck, pio0, pba, 10); 793 794static struct resource pio1_resource[] = { 795 PBMEM(0xffe02c00), 796 IRQ(14), 797}; 798DEFINE_DEV(pio, 1); 799DEV_CLK(mck, pio1, pba, 11); 800 801static struct resource pio2_resource[] = { 802 PBMEM(0xffe03000), 803 IRQ(15), 804}; 805DEFINE_DEV(pio, 2); 806DEV_CLK(mck, pio2, pba, 12); 807 808static struct resource pio3_resource[] = { 809 PBMEM(0xffe03400), 810 IRQ(16), 811}; 812DEFINE_DEV(pio, 3); 813DEV_CLK(mck, pio3, pba, 13); 814 815static struct resource pio4_resource[] = { 816 PBMEM(0xffe03800), 817 IRQ(17), 818}; 819DEFINE_DEV(pio, 4); 820DEV_CLK(mck, pio4, pba, 14); 821 822static int __init system_device_init(void) 823{ 824 platform_device_register(&at32_pm0_device); 825 platform_device_register(&at32_intc0_device); 826 platform_device_register(&at32ap700x_rtc0_device); 827 platform_device_register(&at32_wdt0_device); 828 platform_device_register(&at32_eic0_device); 829 platform_device_register(&smc0_device); 830 platform_device_register(&pdc_device); 831 platform_device_register(&dw_dmac0_device); 832 833 platform_device_register(&at32_tcb0_device); 834 platform_device_register(&at32_tcb1_device); 835 836 platform_device_register(&pio0_device); 837 platform_device_register(&pio1_device); 838 platform_device_register(&pio2_device); 839 platform_device_register(&pio3_device); 840 platform_device_register(&pio4_device); 841 842 return 0; 843} 844core_initcall(system_device_init); 845 846/* -------------------------------------------------------------------- 847 * PSIF 848 * -------------------------------------------------------------------- */ 849static struct resource atmel_psif0_resource[] __initdata = { 850 { 851 .start = 0xffe03c00, 852 .end = 0xffe03cff, 853 .flags = IORESOURCE_MEM, 854 }, 855 IRQ(18), 856}; 857static struct clk atmel_psif0_pclk = { 858 .name = "pclk", 859 .parent = &pba_clk, 860 .mode = pba_clk_mode, 861 .get_rate = pba_clk_get_rate, 862 .index = 15, 863}; 864 865static struct resource atmel_psif1_resource[] __initdata = { 866 { 867 .start = 0xffe03d00, 868 .end = 0xffe03dff, 869 .flags = IORESOURCE_MEM, 870 }, 871 IRQ(18), 872}; 873static struct clk atmel_psif1_pclk = { 874 .name = "pclk", 875 .parent = &pba_clk, 876 .mode = pba_clk_mode, 877 .get_rate = pba_clk_get_rate, 878 .index = 15, 879}; 880 881struct platform_device *__init at32_add_device_psif(unsigned int id) 882{ 883 struct platform_device *pdev; 884 u32 pin_mask; 885 886 if (!(id == 0 || id == 1)) 887 return NULL; 888 889 pdev = platform_device_alloc("atmel_psif", id); 890 if (!pdev) 891 return NULL; 892 893 switch (id) { 894 case 0: 895 pin_mask = (1 << 8) | (1 << 9); /* CLOCK & DATA */ 896 897 if (platform_device_add_resources(pdev, atmel_psif0_resource, 898 ARRAY_SIZE(atmel_psif0_resource))) 899 goto err_add_resources; 900 atmel_psif0_pclk.dev = &pdev->dev; 901 select_peripheral(PIOA, pin_mask, PERIPH_A, 0); 902 break; 903 case 1: 904 pin_mask = (1 << 11) | (1 << 12); /* CLOCK & DATA */ 905 906 if (platform_device_add_resources(pdev, atmel_psif1_resource, 907 ARRAY_SIZE(atmel_psif1_resource))) 908 goto err_add_resources; 909 atmel_psif1_pclk.dev = &pdev->dev; 910 select_peripheral(PIOB, pin_mask, PERIPH_A, 0); 911 break; 912 default: 913 return NULL; 914 } 915 916 platform_device_add(pdev); 917 return pdev; 918 919err_add_resources: 920 platform_device_put(pdev); 921 return NULL; 922} 923 924/* -------------------------------------------------------------------- 925 * USART 926 * -------------------------------------------------------------------- */ 927 928static struct atmel_uart_data atmel_usart0_data = { 929 .use_dma_tx = 1, 930 .use_dma_rx = 1, 931}; 932static struct resource atmel_usart0_resource[] = { 933 PBMEM(0xffe00c00), 934 IRQ(6), 935}; 936DEFINE_DEV_DATA(atmel_usart, 0); 937DEV_CLK(usart, atmel_usart0, pba, 3); 938 939static struct atmel_uart_data atmel_usart1_data = { 940 .use_dma_tx = 1, 941 .use_dma_rx = 1, 942}; 943static struct resource atmel_usart1_resource[] = { 944 PBMEM(0xffe01000), 945 IRQ(7), 946}; 947DEFINE_DEV_DATA(atmel_usart, 1); 948DEV_CLK(usart, atmel_usart1, pba, 4); 949 950static struct atmel_uart_data atmel_usart2_data = { 951 .use_dma_tx = 1, 952 .use_dma_rx = 1, 953}; 954static struct resource atmel_usart2_resource[] = { 955 PBMEM(0xffe01400), 956 IRQ(8), 957}; 958DEFINE_DEV_DATA(atmel_usart, 2); 959DEV_CLK(usart, atmel_usart2, pba, 5); 960 961static struct atmel_uart_data atmel_usart3_data = { 962 .use_dma_tx = 1, 963 .use_dma_rx = 1, 964}; 965static struct resource atmel_usart3_resource[] = { 966 PBMEM(0xffe01800), 967 IRQ(9), 968}; 969DEFINE_DEV_DATA(atmel_usart, 3); 970DEV_CLK(usart, atmel_usart3, pba, 6); 971 972static inline void configure_usart0_pins(int flags) 973{ 974 u32 pin_mask = (1 << 8) | (1 << 9); /* RXD & TXD */ 975 if (flags & ATMEL_USART_RTS) pin_mask |= (1 << 6); 976 if (flags & ATMEL_USART_CTS) pin_mask |= (1 << 7); 977 if (flags & ATMEL_USART_CLK) pin_mask |= (1 << 10); 978 979 select_peripheral(PIOA, pin_mask, PERIPH_B, AT32_GPIOF_PULLUP); 980} 981 982static inline void configure_usart1_pins(int flags) 983{ 984 u32 pin_mask = (1 << 17) | (1 << 18); /* RXD & TXD */ 985 if (flags & ATMEL_USART_RTS) pin_mask |= (1 << 19); 986 if (flags & ATMEL_USART_CTS) pin_mask |= (1 << 20); 987 if (flags & ATMEL_USART_CLK) pin_mask |= (1 << 16); 988 989 select_peripheral(PIOA, pin_mask, PERIPH_A, AT32_GPIOF_PULLUP); 990} 991 992static inline void configure_usart2_pins(int flags) 993{ 994 u32 pin_mask = (1 << 26) | (1 << 27); /* RXD & TXD */ 995 if (flags & ATMEL_USART_RTS) pin_mask |= (1 << 30); 996 if (flags & ATMEL_USART_CTS) pin_mask |= (1 << 29); 997 if (flags & ATMEL_USART_CLK) pin_mask |= (1 << 28); 998 999 select_peripheral(PIOB, pin_mask, PERIPH_B, AT32_GPIOF_PULLUP); 1000} 1001 1002static inline void configure_usart3_pins(int flags) 1003{ 1004 u32 pin_mask = (1 << 18) | (1 << 17); /* RXD & TXD */ 1005 if (flags & ATMEL_USART_RTS) pin_mask |= (1 << 16); 1006 if (flags & ATMEL_USART_CTS) pin_mask |= (1 << 15); 1007 if (flags & ATMEL_USART_CLK) pin_mask |= (1 << 19); 1008 1009 select_peripheral(PIOB, pin_mask, PERIPH_B, AT32_GPIOF_PULLUP); 1010} 1011 1012static struct platform_device *__initdata at32_usarts[4]; 1013 1014void __init at32_map_usart(unsigned int hw_id, unsigned int line, int flags) 1015{ 1016 struct platform_device *pdev; 1017 1018 switch (hw_id) { 1019 case 0: 1020 pdev = &atmel_usart0_device; 1021 configure_usart0_pins(flags); 1022 break; 1023 case 1: 1024 pdev = &atmel_usart1_device; 1025 configure_usart1_pins(flags); 1026 break; 1027 case 2: 1028 pdev = &atmel_usart2_device; 1029 configure_usart2_pins(flags); 1030 break; 1031 case 3: 1032 pdev = &atmel_usart3_device; 1033 configure_usart3_pins(flags); 1034 break; 1035 default: 1036 return; 1037 } 1038 1039 if (PXSEG(pdev->resource[0].start) == P4SEG) { 1040 /* Addresses in the P4 segment are permanently mapped 1:1 */ 1041 struct atmel_uart_data *data = pdev->dev.platform_data; 1042 data->regs = (void __iomem *)pdev->resource[0].start; 1043 } 1044 1045 pdev->id = line; 1046 at32_usarts[line] = pdev; 1047} 1048 1049struct platform_device *__init at32_add_device_usart(unsigned int id) 1050{ 1051 platform_device_register(at32_usarts[id]); 1052 return at32_usarts[id]; 1053} 1054 1055struct platform_device *atmel_default_console_device; 1056 1057void __init at32_setup_serial_console(unsigned int usart_id) 1058{ 1059 atmel_default_console_device = at32_usarts[usart_id]; 1060} 1061 1062/* -------------------------------------------------------------------- 1063 * Ethernet 1064 * -------------------------------------------------------------------- */ 1065 1066#ifdef CONFIG_CPU_AT32AP7000 1067static struct eth_platform_data macb0_data; 1068static struct resource macb0_resource[] = { 1069 PBMEM(0xfff01800), 1070 IRQ(25), 1071}; 1072DEFINE_DEV_DATA(macb, 0); 1073DEV_CLK(hclk, macb0, hsb, 8); 1074DEV_CLK(pclk, macb0, pbb, 6); 1075 1076static struct eth_platform_data macb1_data; 1077static struct resource macb1_resource[] = { 1078 PBMEM(0xfff01c00), 1079 IRQ(26), 1080}; 1081DEFINE_DEV_DATA(macb, 1); 1082DEV_CLK(hclk, macb1, hsb, 9); 1083DEV_CLK(pclk, macb1, pbb, 7); 1084 1085struct platform_device *__init 1086at32_add_device_eth(unsigned int id, struct eth_platform_data *data) 1087{ 1088 struct platform_device *pdev; 1089 u32 pin_mask; 1090 1091 switch (id) { 1092 case 0: 1093 pdev = &macb0_device; 1094 1095 pin_mask = (1 << 3); /* TXD0 */ 1096 pin_mask |= (1 << 4); /* TXD1 */ 1097 pin_mask |= (1 << 7); /* TXEN */ 1098 pin_mask |= (1 << 8); /* TXCK */ 1099 pin_mask |= (1 << 9); /* RXD0 */ 1100 pin_mask |= (1 << 10); /* RXD1 */ 1101 pin_mask |= (1 << 13); /* RXER */ 1102 pin_mask |= (1 << 15); /* RXDV */ 1103 pin_mask |= (1 << 16); /* MDC */ 1104 pin_mask |= (1 << 17); /* MDIO */ 1105 1106 if (!data->is_rmii) { 1107 pin_mask |= (1 << 0); /* COL */ 1108 pin_mask |= (1 << 1); /* CRS */ 1109 pin_mask |= (1 << 2); /* TXER */ 1110 pin_mask |= (1 << 5); /* TXD2 */ 1111 pin_mask |= (1 << 6); /* TXD3 */ 1112 pin_mask |= (1 << 11); /* RXD2 */ 1113 pin_mask |= (1 << 12); /* RXD3 */ 1114 pin_mask |= (1 << 14); /* RXCK */ 1115#ifndef CONFIG_BOARD_MIMC200 1116 pin_mask |= (1 << 18); /* SPD */ 1117#endif 1118 } 1119 1120 select_peripheral(PIOC, pin_mask, PERIPH_A, 0); 1121 1122 break; 1123 1124 case 1: 1125 pdev = &macb1_device; 1126 1127 pin_mask = (1 << 13); /* TXD0 */ 1128 pin_mask |= (1 << 14); /* TXD1 */ 1129 pin_mask |= (1 << 11); /* TXEN */ 1130 pin_mask |= (1 << 12); /* TXCK */ 1131 pin_mask |= (1 << 10); /* RXD0 */ 1132 pin_mask |= (1 << 6); /* RXD1 */ 1133 pin_mask |= (1 << 5); /* RXER */ 1134 pin_mask |= (1 << 4); /* RXDV */ 1135 pin_mask |= (1 << 3); /* MDC */ 1136 pin_mask |= (1 << 2); /* MDIO */ 1137 1138#ifndef CONFIG_BOARD_MIMC200 1139 if (!data->is_rmii) 1140 pin_mask |= (1 << 15); /* SPD */ 1141#endif 1142 1143 select_peripheral(PIOD, pin_mask, PERIPH_B, 0); 1144 1145 if (!data->is_rmii) { 1146 pin_mask = (1 << 19); /* COL */ 1147 pin_mask |= (1 << 23); /* CRS */ 1148 pin_mask |= (1 << 26); /* TXER */ 1149 pin_mask |= (1 << 27); /* TXD2 */ 1150 pin_mask |= (1 << 28); /* TXD3 */ 1151 pin_mask |= (1 << 29); /* RXD2 */ 1152 pin_mask |= (1 << 30); /* RXD3 */ 1153 pin_mask |= (1 << 24); /* RXCK */ 1154 1155 select_peripheral(PIOC, pin_mask, PERIPH_B, 0); 1156 } 1157 break; 1158 1159 default: 1160 return NULL; 1161 } 1162 1163 memcpy(pdev->dev.platform_data, data, sizeof(struct eth_platform_data)); 1164 platform_device_register(pdev); 1165 1166 return pdev; 1167} 1168#endif 1169 1170/* -------------------------------------------------------------------- 1171 * SPI 1172 * -------------------------------------------------------------------- */ 1173static struct resource atmel_spi0_resource[] = { 1174 PBMEM(0xffe00000), 1175 IRQ(3), 1176}; 1177DEFINE_DEV(atmel_spi, 0); 1178DEV_CLK(spi_clk, atmel_spi0, pba, 0); 1179 1180static struct resource atmel_spi1_resource[] = { 1181 PBMEM(0xffe00400), 1182 IRQ(4), 1183}; 1184DEFINE_DEV(atmel_spi, 1); 1185DEV_CLK(spi_clk, atmel_spi1, pba, 1); 1186 1187void __init 1188at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b, unsigned int n) 1189{ 1190 /* 1191 * Manage the chipselects as GPIOs, normally using the same pins 1192 * the SPI controller expects; but boards can use other pins. 1193 */ 1194 static u8 __initdata spi_pins[][4] = { 1195 { GPIO_PIN_PA(3), GPIO_PIN_PA(4), 1196 GPIO_PIN_PA(5), GPIO_PIN_PA(20) }, 1197 { GPIO_PIN_PB(2), GPIO_PIN_PB(3), 1198 GPIO_PIN_PB(4), GPIO_PIN_PA(27) }, 1199 }; 1200 unsigned int pin, mode; 1201 1202 /* There are only 2 SPI controllers */ 1203 if (bus_num > 1) 1204 return; 1205 1206 for (; n; n--, b++) { 1207 b->bus_num = bus_num; 1208 if (b->chip_select >= 4) 1209 continue; 1210 pin = (unsigned)b->controller_data; 1211 if (!pin) { 1212 pin = spi_pins[bus_num][b->chip_select]; 1213 b->controller_data = (void *)pin; 1214 } 1215 mode = AT32_GPIOF_OUTPUT; 1216 if (!(b->mode & SPI_CS_HIGH)) 1217 mode |= AT32_GPIOF_HIGH; 1218 at32_select_gpio(pin, mode); 1219 } 1220} 1221 1222struct platform_device *__init 1223at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n) 1224{ 1225 struct platform_device *pdev; 1226 u32 pin_mask; 1227 1228 switch (id) { 1229 case 0: 1230 pdev = &atmel_spi0_device; 1231 pin_mask = (1 << 1) | (1 << 2); /* MOSI & SCK */ 1232 1233 /* pullup MISO so a level is always defined */ 1234 select_peripheral(PIOA, (1 << 0), PERIPH_A, AT32_GPIOF_PULLUP); 1235 select_peripheral(PIOA, pin_mask, PERIPH_A, 0); 1236 1237 at32_spi_setup_slaves(0, b, n); 1238 break; 1239 1240 case 1: 1241 pdev = &atmel_spi1_device; 1242 pin_mask = (1 << 1) | (1 << 5); /* MOSI */ 1243 1244 /* pullup MISO so a level is always defined */ 1245 select_peripheral(PIOB, (1 << 0), PERIPH_B, AT32_GPIOF_PULLUP); 1246 select_peripheral(PIOB, pin_mask, PERIPH_B, 0); 1247 1248 at32_spi_setup_slaves(1, b, n); 1249 break; 1250 1251 default: 1252 return NULL; 1253 } 1254 1255 spi_register_board_info(b, n); 1256 platform_device_register(pdev); 1257 return pdev; 1258} 1259 1260/* -------------------------------------------------------------------- 1261 * TWI 1262 * -------------------------------------------------------------------- */ 1263static struct resource atmel_twi0_resource[] __initdata = { 1264 PBMEM(0xffe00800), 1265 IRQ(5), 1266}; 1267static struct clk atmel_twi0_pclk = { 1268 .name = "twi_pclk", 1269 .parent = &pba_clk, 1270 .mode = pba_clk_mode, 1271 .get_rate = pba_clk_get_rate, 1272 .index = 2, 1273}; 1274 1275struct platform_device *__init at32_add_device_twi(unsigned int id, 1276 struct i2c_board_info *b, 1277 unsigned int n) 1278{ 1279 struct platform_device *pdev; 1280 u32 pin_mask; 1281 1282 if (id != 0) 1283 return NULL; 1284 1285 pdev = platform_device_alloc("atmel_twi", id); 1286 if (!pdev) 1287 return NULL; 1288 1289 if (platform_device_add_resources(pdev, atmel_twi0_resource, 1290 ARRAY_SIZE(atmel_twi0_resource))) 1291 goto err_add_resources; 1292 1293 pin_mask = (1 << 6) | (1 << 7); /* SDA & SDL */ 1294 1295 select_peripheral(PIOA, pin_mask, PERIPH_A, 0); 1296 1297 atmel_twi0_pclk.dev = &pdev->dev; 1298 1299 if (b) 1300 i2c_register_board_info(id, b, n); 1301 1302 platform_device_add(pdev); 1303 return pdev; 1304 1305err_add_resources: 1306 platform_device_put(pdev); 1307 return NULL; 1308} 1309 1310/* -------------------------------------------------------------------- 1311 * MMC 1312 * -------------------------------------------------------------------- */ 1313static struct resource atmel_mci0_resource[] __initdata = { 1314 PBMEM(0xfff02400), 1315 IRQ(28), 1316}; 1317static struct clk atmel_mci0_pclk = { 1318 .name = "mci_clk", 1319 .parent = &pbb_clk, 1320 .mode = pbb_clk_mode, 1321 .get_rate = pbb_clk_get_rate, 1322 .index = 9, 1323}; 1324 1325struct platform_device *__init 1326at32_add_device_mci(unsigned int id, struct mci_platform_data *data) 1327{ 1328 struct platform_device *pdev; 1329 struct mci_dma_data *slave; 1330 u32 pioa_mask; 1331 u32 piob_mask; 1332 1333 if (id != 0 || !data) 1334 return NULL; 1335 1336 /* Must have at least one usable slot */ 1337 if (!data->slot[0].bus_width && !data->slot[1].bus_width) 1338 return NULL; 1339 1340 pdev = platform_device_alloc("atmel_mci", id); 1341 if (!pdev) 1342 goto fail; 1343 1344 if (platform_device_add_resources(pdev, atmel_mci0_resource, 1345 ARRAY_SIZE(atmel_mci0_resource))) 1346 goto fail; 1347 1348 slave = kzalloc(sizeof(struct mci_dma_data), GFP_KERNEL); 1349 if (!slave) 1350 goto fail; 1351 1352 slave->sdata.dma_dev = &dw_dmac0_device.dev; 1353 slave->sdata.reg_width = DW_DMA_SLAVE_WIDTH_32BIT; 1354 slave->sdata.cfg_hi = (DWC_CFGH_SRC_PER(0) 1355 | DWC_CFGH_DST_PER(1)); 1356 slave->sdata.cfg_lo &= ~(DWC_CFGL_HS_DST_POL 1357 | DWC_CFGL_HS_SRC_POL); 1358 1359 data->dma_slave = slave; 1360 1361 if (platform_device_add_data(pdev, data, 1362 sizeof(struct mci_platform_data))) 1363 goto fail_free; 1364 1365 /* CLK line is common to both slots */ 1366 pioa_mask = 1 << 10; 1367 1368 switch (data->slot[0].bus_width) { 1369 case 4: 1370 pioa_mask |= 1 << 13; /* DATA1 */ 1371 pioa_mask |= 1 << 14; /* DATA2 */ 1372 pioa_mask |= 1 << 15; /* DATA3 */ 1373 /* fall through */ 1374 case 1: 1375 pioa_mask |= 1 << 11; /* CMD */ 1376 pioa_mask |= 1 << 12; /* DATA0 */ 1377 1378 if (gpio_is_valid(data->slot[0].detect_pin)) 1379 at32_select_gpio(data->slot[0].detect_pin, 0); 1380 if (gpio_is_valid(data->slot[0].wp_pin)) 1381 at32_select_gpio(data->slot[0].wp_pin, 0); 1382 break; 1383 case 0: 1384 /* Slot is unused */ 1385 break; 1386 default: 1387 goto fail_free; 1388 } 1389 1390 select_peripheral(PIOA, pioa_mask, PERIPH_A, 0); 1391 piob_mask = 0; 1392 1393 switch (data->slot[1].bus_width) { 1394 case 4: 1395 piob_mask |= 1 << 8; /* DATA1 */ 1396 piob_mask |= 1 << 9; /* DATA2 */ 1397 piob_mask |= 1 << 10; /* DATA3 */ 1398 /* fall through */ 1399 case 1: 1400 piob_mask |= 1 << 6; /* CMD */ 1401 piob_mask |= 1 << 7; /* DATA0 */ 1402 select_peripheral(PIOB, piob_mask, PERIPH_B, 0); 1403 1404 if (gpio_is_valid(data->slot[1].detect_pin)) 1405 at32_select_gpio(data->slot[1].detect_pin, 0); 1406 if (gpio_is_valid(data->slot[1].wp_pin)) 1407 at32_select_gpio(data->slot[1].wp_pin, 0); 1408 break; 1409 case 0: 1410 /* Slot is unused */ 1411 break; 1412 default: 1413 if (!data->slot[0].bus_width) 1414 goto fail_free; 1415 1416 data->slot[1].bus_width = 0; 1417 break; 1418 } 1419 1420 atmel_mci0_pclk.dev = &pdev->dev; 1421 1422 platform_device_add(pdev); 1423 return pdev; 1424 1425fail_free: 1426 kfree(slave); 1427fail: 1428 data->dma_slave = NULL; 1429 platform_device_put(pdev); 1430 return NULL; 1431} 1432 1433/* -------------------------------------------------------------------- 1434 * LCDC 1435 * -------------------------------------------------------------------- */ 1436#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002) 1437static struct atmel_lcdfb_info atmel_lcdfb0_data; 1438static struct resource atmel_lcdfb0_resource[] = { 1439 { 1440 .start = 0xff000000, 1441 .end = 0xff000fff, 1442 .flags = IORESOURCE_MEM, 1443 }, 1444 IRQ(1), 1445 { 1446 /* Placeholder for pre-allocated fb memory */ 1447 .start = 0x00000000, 1448 .end = 0x00000000, 1449 .flags = 0, 1450 }, 1451}; 1452DEFINE_DEV_DATA(atmel_lcdfb, 0); 1453DEV_CLK(hck1, atmel_lcdfb0, hsb, 7); 1454static struct clk atmel_lcdfb0_pixclk = { 1455 .name = "lcdc_clk", 1456 .dev = &atmel_lcdfb0_device.dev, 1457 .mode = genclk_mode, 1458 .get_rate = genclk_get_rate, 1459 .set_rate = genclk_set_rate, 1460 .set_parent = genclk_set_parent, 1461 .index = 7, 1462}; 1463 1464struct platform_device *__init 1465at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data, 1466 unsigned long fbmem_start, unsigned long fbmem_len, 1467 u64 pin_mask) 1468{ 1469 struct platform_device *pdev; 1470 struct atmel_lcdfb_info *info; 1471 struct fb_monspecs *monspecs; 1472 struct fb_videomode *modedb; 1473 unsigned int modedb_size; 1474 u32 portc_mask, portd_mask, porte_mask; 1475 1476 /* 1477 * Do a deep copy of the fb data, monspecs and modedb. Make 1478 * sure all allocations are done before setting up the 1479 * portmux. 1480 */ 1481 monspecs = kmemdup(data->default_monspecs, 1482 sizeof(struct fb_monspecs), GFP_KERNEL); 1483 if (!monspecs) 1484 return NULL; 1485 1486 modedb_size = sizeof(struct fb_videomode) * monspecs->modedb_len; 1487 modedb = kmemdup(monspecs->modedb, modedb_size, GFP_KERNEL); 1488 if (!modedb) 1489 goto err_dup_modedb; 1490 monspecs->modedb = modedb; 1491 1492 switch (id) { 1493 case 0: 1494 pdev = &atmel_lcdfb0_device; 1495 1496 if (pin_mask == 0ULL) 1497 /* Default to "full" lcdc control signals and 24bit */ 1498 pin_mask = ATMEL_LCDC_PRI_24BIT | ATMEL_LCDC_PRI_CONTROL; 1499 1500 /* LCDC on port C */ 1501 portc_mask = pin_mask & 0xfff80000; 1502 select_peripheral(PIOC, portc_mask, PERIPH_A, 0); 1503 1504 /* LCDC on port D */ 1505 portd_mask = pin_mask & 0x0003ffff; 1506 select_peripheral(PIOD, portd_mask, PERIPH_A, 0); 1507 1508 /* LCDC on port E */ 1509 porte_mask = (pin_mask >> 32) & 0x0007ffff; 1510 select_peripheral(PIOE, porte_mask, PERIPH_B, 0); 1511 1512 clk_set_parent(&atmel_lcdfb0_pixclk, &pll0); 1513 clk_set_rate(&atmel_lcdfb0_pixclk, clk_get_rate(&pll0)); 1514 break; 1515 1516 default: 1517 goto err_invalid_id; 1518 } 1519 1520 if (fbmem_len) { 1521 pdev->resource[2].start = fbmem_start; 1522 pdev->resource[2].end = fbmem_start + fbmem_len - 1; 1523 pdev->resource[2].flags = IORESOURCE_MEM; 1524 } 1525 1526 info = pdev->dev.platform_data; 1527 memcpy(info, data, sizeof(struct atmel_lcdfb_info)); 1528 info->default_monspecs = monspecs; 1529 1530 platform_device_register(pdev); 1531 return pdev; 1532 1533err_invalid_id: 1534 kfree(modedb); 1535err_dup_modedb: 1536 kfree(monspecs); 1537 return NULL; 1538} 1539#endif 1540 1541/* -------------------------------------------------------------------- 1542 * PWM 1543 * -------------------------------------------------------------------- */ 1544static struct resource atmel_pwm0_resource[] __initdata = { 1545 PBMEM(0xfff01400), 1546 IRQ(24), 1547}; 1548static struct clk atmel_pwm0_mck = { 1549 .name = "pwm_clk", 1550 .parent = &pbb_clk, 1551 .mode = pbb_clk_mode, 1552 .get_rate = pbb_clk_get_rate, 1553 .index = 5, 1554}; 1555 1556struct platform_device *__init at32_add_device_pwm(u32 mask) 1557{ 1558 struct platform_device *pdev; 1559 u32 pin_mask; 1560 1561 if (!mask) 1562 return NULL; 1563 1564 pdev = platform_device_alloc("atmel_pwm", 0); 1565 if (!pdev) 1566 return NULL; 1567 1568 if (platform_device_add_resources(pdev, atmel_pwm0_resource, 1569 ARRAY_SIZE(atmel_pwm0_resource))) 1570 goto out_free_pdev; 1571 1572 if (platform_device_add_data(pdev, &mask, sizeof(mask))) 1573 goto out_free_pdev; 1574 1575 pin_mask = 0; 1576 if (mask & (1 << 0)) 1577 pin_mask |= (1 << 28); 1578 if (mask & (1 << 1)) 1579 pin_mask |= (1 << 29); 1580 if (pin_mask > 0) 1581 select_peripheral(PIOA, pin_mask, PERIPH_A, 0); 1582 1583 pin_mask = 0; 1584 if (mask & (1 << 2)) 1585 pin_mask |= (1 << 21); 1586 if (mask & (1 << 3)) 1587 pin_mask |= (1 << 22); 1588 if (pin_mask > 0) 1589 select_peripheral(PIOA, pin_mask, PERIPH_B, 0); 1590 1591 atmel_pwm0_mck.dev = &pdev->dev; 1592 1593 platform_device_add(pdev); 1594 1595 return pdev; 1596 1597out_free_pdev: 1598 platform_device_put(pdev); 1599 return NULL; 1600} 1601 1602/* -------------------------------------------------------------------- 1603 * SSC 1604 * -------------------------------------------------------------------- */ 1605static struct resource ssc0_resource[] = { 1606 PBMEM(0xffe01c00), 1607 IRQ(10), 1608}; 1609DEFINE_DEV(ssc, 0); 1610DEV_CLK(pclk, ssc0, pba, 7); 1611 1612static struct resource ssc1_resource[] = { 1613 PBMEM(0xffe02000), 1614 IRQ(11), 1615}; 1616DEFINE_DEV(ssc, 1); 1617DEV_CLK(pclk, ssc1, pba, 8); 1618 1619static struct resource ssc2_resource[] = { 1620 PBMEM(0xffe02400), 1621 IRQ(12), 1622}; 1623DEFINE_DEV(ssc, 2); 1624DEV_CLK(pclk, ssc2, pba, 9); 1625 1626struct platform_device *__init 1627at32_add_device_ssc(unsigned int id, unsigned int flags) 1628{ 1629 struct platform_device *pdev; 1630 u32 pin_mask = 0; 1631 1632 switch (id) { 1633 case 0: 1634 pdev = &ssc0_device; 1635 if (flags & ATMEL_SSC_RF) 1636 pin_mask |= (1 << 21); /* RF */ 1637 if (flags & ATMEL_SSC_RK) 1638 pin_mask |= (1 << 22); /* RK */ 1639 if (flags & ATMEL_SSC_TK) 1640 pin_mask |= (1 << 23); /* TK */ 1641 if (flags & ATMEL_SSC_TF) 1642 pin_mask |= (1 << 24); /* TF */ 1643 if (flags & ATMEL_SSC_TD) 1644 pin_mask |= (1 << 25); /* TD */ 1645 if (flags & ATMEL_SSC_RD) 1646 pin_mask |= (1 << 26); /* RD */ 1647 1648 if (pin_mask > 0) 1649 select_peripheral(PIOA, pin_mask, PERIPH_A, 0); 1650 1651 break; 1652 case 1: 1653 pdev = &ssc1_device; 1654 if (flags & ATMEL_SSC_RF) 1655 pin_mask |= (1 << 0); /* RF */ 1656 if (flags & ATMEL_SSC_RK) 1657 pin_mask |= (1 << 1); /* RK */ 1658 if (flags & ATMEL_SSC_TK) 1659 pin_mask |= (1 << 2); /* TK */ 1660 if (flags & ATMEL_SSC_TF) 1661 pin_mask |= (1 << 3); /* TF */ 1662 if (flags & ATMEL_SSC_TD) 1663 pin_mask |= (1 << 4); /* TD */ 1664 if (flags & ATMEL_SSC_RD) 1665 pin_mask |= (1 << 5); /* RD */ 1666 1667 if (pin_mask > 0) 1668 select_peripheral(PIOA, pin_mask, PERIPH_B, 0); 1669 1670 break; 1671 case 2: 1672 pdev = &ssc2_device; 1673 if (flags & ATMEL_SSC_TD) 1674 pin_mask |= (1 << 13); /* TD */ 1675 if (flags & ATMEL_SSC_RD) 1676 pin_mask |= (1 << 14); /* RD */ 1677 if (flags & ATMEL_SSC_TK) 1678 pin_mask |= (1 << 15); /* TK */ 1679 if (flags & ATMEL_SSC_TF) 1680 pin_mask |= (1 << 16); /* TF */ 1681 if (flags & ATMEL_SSC_RF) 1682 pin_mask |= (1 << 17); /* RF */ 1683 if (flags & ATMEL_SSC_RK) 1684 pin_mask |= (1 << 18); /* RK */ 1685 1686 if (pin_mask > 0) 1687 select_peripheral(PIOB, pin_mask, PERIPH_A, 0); 1688 1689 break; 1690 default: 1691 return NULL; 1692 } 1693 1694 platform_device_register(pdev); 1695 return pdev; 1696} 1697 1698/* -------------------------------------------------------------------- 1699 * USB Device Controller 1700 * -------------------------------------------------------------------- */ 1701static struct resource usba0_resource[] __initdata = { 1702 { 1703 .start = 0xff300000, 1704 .end = 0xff3fffff, 1705 .flags = IORESOURCE_MEM, 1706 }, { 1707 .start = 0xfff03000, 1708 .end = 0xfff033ff, 1709 .flags = IORESOURCE_MEM, 1710 }, 1711 IRQ(31), 1712}; 1713static struct clk usba0_pclk = { 1714 .name = "pclk", 1715 .parent = &pbb_clk, 1716 .mode = pbb_clk_mode, 1717 .get_rate = pbb_clk_get_rate, 1718 .index = 12, 1719}; 1720static struct clk usba0_hclk = { 1721 .name = "hclk", 1722 .parent = &hsb_clk, 1723 .mode = hsb_clk_mode, 1724 .get_rate = hsb_clk_get_rate, 1725 .index = 6, 1726}; 1727 1728#define EP(nam, idx, maxpkt, maxbk, dma, isoc) \ 1729 [idx] = { \ 1730 .name = nam, \ 1731 .index = idx, \ 1732 .fifo_size = maxpkt, \ 1733 .nr_banks = maxbk, \ 1734 .can_dma = dma, \ 1735 .can_isoc = isoc, \ 1736 } 1737 1738static struct usba_ep_data at32_usba_ep[] __initdata = { 1739 EP("ep0", 0, 64, 1, 0, 0), 1740 EP("ep1", 1, 512, 2, 1, 1), 1741 EP("ep2", 2, 512, 2, 1, 1), 1742 EP("ep3-int", 3, 64, 3, 1, 0), 1743 EP("ep4-int", 4, 64, 3, 1, 0), 1744 EP("ep5", 5, 1024, 3, 1, 1), 1745 EP("ep6", 6, 1024, 3, 1, 1), 1746}; 1747 1748#undef EP 1749 1750struct platform_device *__init 1751at32_add_device_usba(unsigned int id, struct usba_platform_data *data) 1752{ 1753 /* 1754 * pdata doesn't have room for any endpoints, so we need to 1755 * append room for the ones we need right after it. 1756 */ 1757 struct { 1758 struct usba_platform_data pdata; 1759 struct usba_ep_data ep[7]; 1760 } usba_data; 1761 struct platform_device *pdev; 1762 1763 if (id != 0) 1764 return NULL; 1765 1766 pdev = platform_device_alloc("atmel_usba_udc", 0); 1767 if (!pdev) 1768 return NULL; 1769 1770 if (platform_device_add_resources(pdev, usba0_resource, 1771 ARRAY_SIZE(usba0_resource))) 1772 goto out_free_pdev; 1773 1774 if (data) { 1775 usba_data.pdata.vbus_pin = data->vbus_pin; 1776 usba_data.pdata.vbus_pin_inverted = data->vbus_pin_inverted; 1777 } else { 1778 usba_data.pdata.vbus_pin = -EINVAL; 1779 usba_data.pdata.vbus_pin_inverted = -EINVAL; 1780 } 1781 1782 data = &usba_data.pdata; 1783 data->num_ep = ARRAY_SIZE(at32_usba_ep); 1784 memcpy(data->ep, at32_usba_ep, sizeof(at32_usba_ep)); 1785 1786 if (platform_device_add_data(pdev, data, sizeof(usba_data))) 1787 goto out_free_pdev; 1788 1789 if (gpio_is_valid(data->vbus_pin)) 1790 at32_select_gpio(data->vbus_pin, 0); 1791 1792 usba0_pclk.dev = &pdev->dev; 1793 usba0_hclk.dev = &pdev->dev; 1794 1795 platform_device_add(pdev); 1796 1797 return pdev; 1798 1799out_free_pdev: 1800 platform_device_put(pdev); 1801 return NULL; 1802} 1803 1804/* -------------------------------------------------------------------- 1805 * IDE / CompactFlash 1806 * -------------------------------------------------------------------- */ 1807#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7001) 1808static struct resource at32_smc_cs4_resource[] __initdata = { 1809 { 1810 .start = 0x04000000, 1811 .end = 0x07ffffff, 1812 .flags = IORESOURCE_MEM, 1813 }, 1814 IRQ(~0UL), /* Magic IRQ will be overridden */ 1815}; 1816static struct resource at32_smc_cs5_resource[] __initdata = { 1817 { 1818 .start = 0x20000000, 1819 .end = 0x23ffffff, 1820 .flags = IORESOURCE_MEM, 1821 }, 1822 IRQ(~0UL), /* Magic IRQ will be overridden */ 1823}; 1824 1825static int __init at32_init_ide_or_cf(struct platform_device *pdev, 1826 unsigned int cs, unsigned int extint) 1827{ 1828 static unsigned int extint_pin_map[4] __initdata = { 1829 (1 << 25), 1830 (1 << 26), 1831 (1 << 27), 1832 (1 << 28), 1833 }; 1834 static bool common_pins_initialized __initdata = false; 1835 unsigned int extint_pin; 1836 int ret; 1837 u32 pin_mask; 1838 1839 if (extint >= ARRAY_SIZE(extint_pin_map)) 1840 return -EINVAL; 1841 extint_pin = extint_pin_map[extint]; 1842 1843 switch (cs) { 1844 case 4: 1845 ret = platform_device_add_resources(pdev, 1846 at32_smc_cs4_resource, 1847 ARRAY_SIZE(at32_smc_cs4_resource)); 1848 if (ret) 1849 return ret; 1850 1851 /* NCS4 -> OE_N */ 1852 select_peripheral(PIOE, (1 << 21), PERIPH_A, 0); 1853 hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_CF0_ENABLE); 1854 break; 1855 case 5: 1856 ret = platform_device_add_resources(pdev, 1857 at32_smc_cs5_resource, 1858 ARRAY_SIZE(at32_smc_cs5_resource)); 1859 if (ret) 1860 return ret; 1861 1862 /* NCS5 -> OE_N */ 1863 select_peripheral(PIOE, (1 << 22), PERIPH_A, 0); 1864 hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_CF1_ENABLE); 1865 break; 1866 default: 1867 return -EINVAL; 1868 } 1869 1870 if (!common_pins_initialized) { 1871 pin_mask = (1 << 19); /* CFCE1 -> CS0_N */ 1872 pin_mask |= (1 << 20); /* CFCE2 -> CS1_N */ 1873 pin_mask |= (1 << 23); /* CFRNW -> DIR */ 1874 pin_mask |= (1 << 24); /* NWAIT <- IORDY */ 1875 1876 select_peripheral(PIOE, pin_mask, PERIPH_A, 0); 1877 1878 common_pins_initialized = true; 1879 } 1880 1881 select_peripheral(PIOB, extint_pin, PERIPH_A, AT32_GPIOF_DEGLITCH); 1882 1883 pdev->resource[1].start = EIM_IRQ_BASE + extint; 1884 pdev->resource[1].end = pdev->resource[1].start; 1885 1886 return 0; 1887} 1888 1889struct platform_device *__init 1890at32_add_device_ide(unsigned int id, unsigned int extint, 1891 struct ide_platform_data *data) 1892{ 1893 struct platform_device *pdev; 1894 1895 pdev = platform_device_alloc("at32_ide", id); 1896 if (!pdev) 1897 goto fail; 1898 1899 if (platform_device_add_data(pdev, data, 1900 sizeof(struct ide_platform_data))) 1901 goto fail; 1902 1903 if (at32_init_ide_or_cf(pdev, data->cs, extint)) 1904 goto fail; 1905 1906 platform_device_add(pdev); 1907 return pdev; 1908 1909fail: 1910 platform_device_put(pdev); 1911 return NULL; 1912} 1913 1914struct platform_device *__init 1915at32_add_device_cf(unsigned int id, unsigned int extint, 1916 struct cf_platform_data *data) 1917{ 1918 struct platform_device *pdev; 1919 1920 pdev = platform_device_alloc("at32_cf", id); 1921 if (!pdev) 1922 goto fail; 1923 1924 if (platform_device_add_data(pdev, data, 1925 sizeof(struct cf_platform_data))) 1926 goto fail; 1927 1928 if (at32_init_ide_or_cf(pdev, data->cs, extint)) 1929 goto fail; 1930 1931 if (gpio_is_valid(data->detect_pin)) 1932 at32_select_gpio(data->detect_pin, AT32_GPIOF_DEGLITCH); 1933 if (gpio_is_valid(data->reset_pin)) 1934 at32_select_gpio(data->reset_pin, 0); 1935 if (gpio_is_valid(data->vcc_pin)) 1936 at32_select_gpio(data->vcc_pin, 0); 1937 /* READY is used as extint, so we can't select it as gpio */ 1938 1939 platform_device_add(pdev); 1940 return pdev; 1941 1942fail: 1943 platform_device_put(pdev); 1944 return NULL; 1945} 1946#endif 1947 1948/* -------------------------------------------------------------------- 1949 * NAND Flash / SmartMedia 1950 * -------------------------------------------------------------------- */ 1951static struct resource smc_cs3_resource[] __initdata = { 1952 { 1953 .start = 0x0c000000, 1954 .end = 0x0fffffff, 1955 .flags = IORESOURCE_MEM, 1956 }, { 1957 .start = 0xfff03c00, 1958 .end = 0xfff03fff, 1959 .flags = IORESOURCE_MEM, 1960 }, 1961}; 1962 1963struct platform_device *__init 1964at32_add_device_nand(unsigned int id, struct atmel_nand_data *data) 1965{ 1966 struct platform_device *pdev; 1967 1968 if (id != 0 || !data) 1969 return NULL; 1970 1971 pdev = platform_device_alloc("atmel_nand", id); 1972 if (!pdev) 1973 goto fail; 1974 1975 if (platform_device_add_resources(pdev, smc_cs3_resource, 1976 ARRAY_SIZE(smc_cs3_resource))) 1977 goto fail; 1978 1979 if (platform_device_add_data(pdev, data, 1980 sizeof(struct atmel_nand_data))) 1981 goto fail; 1982 1983 hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_NAND_ENABLE); 1984 if (data->enable_pin) 1985 at32_select_gpio(data->enable_pin, 1986 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); 1987 if (data->rdy_pin) 1988 at32_select_gpio(data->rdy_pin, 0); 1989 if (data->det_pin) 1990 at32_select_gpio(data->det_pin, 0); 1991 1992 platform_device_add(pdev); 1993 return pdev; 1994 1995fail: 1996 platform_device_put(pdev); 1997 return NULL; 1998} 1999 2000/* -------------------------------------------------------------------- 2001 * AC97C 2002 * -------------------------------------------------------------------- */ 2003static struct resource atmel_ac97c0_resource[] __initdata = { 2004 PBMEM(0xfff02800), 2005 IRQ(29), 2006}; 2007static struct clk atmel_ac97c0_pclk = { 2008 .name = "pclk", 2009 .parent = &pbb_clk, 2010 .mode = pbb_clk_mode, 2011 .get_rate = pbb_clk_get_rate, 2012 .index = 10, 2013}; 2014 2015struct platform_device *__init 2016at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data, 2017 unsigned int flags) 2018{ 2019 struct platform_device *pdev; 2020 struct dw_dma_slave *rx_dws; 2021 struct dw_dma_slave *tx_dws; 2022 struct ac97c_platform_data _data; 2023 u32 pin_mask; 2024 2025 if (id != 0) 2026 return NULL; 2027 2028 pdev = platform_device_alloc("atmel_ac97c", id); 2029 if (!pdev) 2030 return NULL; 2031 2032 if (platform_device_add_resources(pdev, atmel_ac97c0_resource, 2033 ARRAY_SIZE(atmel_ac97c0_resource))) 2034 goto out_free_resources; 2035 2036 if (!data) { 2037 data = &_data; 2038 memset(data, 0, sizeof(struct ac97c_platform_data)); 2039 data->reset_pin = -ENODEV; 2040 } 2041 2042 rx_dws = &data->rx_dws; 2043 tx_dws = &data->tx_dws; 2044 2045 /* Check if DMA slave interface for capture should be configured. */ 2046 if (flags & AC97C_CAPTURE) { 2047 rx_dws->dma_dev = &dw_dmac0_device.dev; 2048 rx_dws->reg_width = DW_DMA_SLAVE_WIDTH_16BIT; 2049 rx_dws->cfg_hi = DWC_CFGH_SRC_PER(3); 2050 rx_dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL); 2051 } 2052 2053 /* Check if DMA slave interface for playback should be configured. */ 2054 if (flags & AC97C_PLAYBACK) { 2055 tx_dws->dma_dev = &dw_dmac0_device.dev; 2056 tx_dws->reg_width = DW_DMA_SLAVE_WIDTH_16BIT; 2057 tx_dws->cfg_hi = DWC_CFGH_DST_PER(4); 2058 tx_dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL); 2059 } 2060 2061 if (platform_device_add_data(pdev, data, 2062 sizeof(struct ac97c_platform_data))) 2063 goto out_free_resources; 2064 2065 /* SDO | SYNC | SCLK | SDI */ 2066 pin_mask = (1 << 20) | (1 << 21) | (1 << 22) | (1 << 23); 2067 2068 select_peripheral(PIOB, pin_mask, PERIPH_B, 0); 2069 2070 if (gpio_is_valid(data->reset_pin)) 2071 at32_select_gpio(data->reset_pin, AT32_GPIOF_OUTPUT 2072 | AT32_GPIOF_HIGH); 2073 2074 atmel_ac97c0_pclk.dev = &pdev->dev; 2075 2076 platform_device_add(pdev); 2077 return pdev; 2078 2079out_free_resources: 2080 platform_device_put(pdev); 2081 return NULL; 2082} 2083 2084/* -------------------------------------------------------------------- 2085 * ABDAC 2086 * -------------------------------------------------------------------- */ 2087static struct resource abdac0_resource[] __initdata = { 2088 PBMEM(0xfff02000), 2089 IRQ(27), 2090}; 2091static struct clk abdac0_pclk = { 2092 .name = "pclk", 2093 .parent = &pbb_clk, 2094 .mode = pbb_clk_mode, 2095 .get_rate = pbb_clk_get_rate, 2096 .index = 8, 2097}; 2098static struct clk abdac0_sample_clk = { 2099 .name = "sample_clk", 2100 .mode = genclk_mode, 2101 .get_rate = genclk_get_rate, 2102 .set_rate = genclk_set_rate, 2103 .set_parent = genclk_set_parent, 2104 .index = 6, 2105}; 2106 2107struct platform_device *__init 2108at32_add_device_abdac(unsigned int id, struct atmel_abdac_pdata *data) 2109{ 2110 struct platform_device *pdev; 2111 struct dw_dma_slave *dws; 2112 u32 pin_mask; 2113 2114 if (id != 0 || !data) 2115 return NULL; 2116 2117 pdev = platform_device_alloc("atmel_abdac", id); 2118 if (!pdev) 2119 return NULL; 2120 2121 if (platform_device_add_resources(pdev, abdac0_resource, 2122 ARRAY_SIZE(abdac0_resource))) 2123 goto out_free_resources; 2124 2125 dws = &data->dws; 2126 2127 dws->dma_dev = &dw_dmac0_device.dev; 2128 dws->reg_width = DW_DMA_SLAVE_WIDTH_32BIT; 2129 dws->cfg_hi = DWC_CFGH_DST_PER(2); 2130 dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL); 2131 2132 if (platform_device_add_data(pdev, data, 2133 sizeof(struct atmel_abdac_pdata))) 2134 goto out_free_resources; 2135 2136 pin_mask = (1 << 20) | (1 << 22); /* DATA1 & DATAN1 */ 2137 pin_mask |= (1 << 21) | (1 << 23); /* DATA0 & DATAN0 */ 2138 2139 select_peripheral(PIOB, pin_mask, PERIPH_A, 0); 2140 2141 abdac0_pclk.dev = &pdev->dev; 2142 abdac0_sample_clk.dev = &pdev->dev; 2143 2144 platform_device_add(pdev); 2145 return pdev; 2146 2147out_free_resources: 2148 platform_device_put(pdev); 2149 return NULL; 2150} 2151 2152/* -------------------------------------------------------------------- 2153 * GCLK 2154 * -------------------------------------------------------------------- */ 2155static struct clk gclk0 = { 2156 .name = "gclk0", 2157 .mode = genclk_mode, 2158 .get_rate = genclk_get_rate, 2159 .set_rate = genclk_set_rate, 2160 .set_parent = genclk_set_parent, 2161 .index = 0, 2162}; 2163static struct clk gclk1 = { 2164 .name = "gclk1", 2165 .mode = genclk_mode, 2166 .get_rate = genclk_get_rate, 2167 .set_rate = genclk_set_rate, 2168 .set_parent = genclk_set_parent, 2169 .index = 1, 2170}; 2171static struct clk gclk2 = { 2172 .name = "gclk2", 2173 .mode = genclk_mode, 2174 .get_rate = genclk_get_rate, 2175 .set_rate = genclk_set_rate, 2176 .set_parent = genclk_set_parent, 2177 .index = 2, 2178}; 2179static struct clk gclk3 = { 2180 .name = "gclk3", 2181 .mode = genclk_mode, 2182 .get_rate = genclk_get_rate, 2183 .set_rate = genclk_set_rate, 2184 .set_parent = genclk_set_parent, 2185 .index = 3, 2186}; 2187static struct clk gclk4 = { 2188 .name = "gclk4", 2189 .mode = genclk_mode, 2190 .get_rate = genclk_get_rate, 2191 .set_rate = genclk_set_rate, 2192 .set_parent = genclk_set_parent, 2193 .index = 4, 2194}; 2195 2196static __initdata struct clk *init_clocks[] = { 2197 &osc32k, 2198 &osc0, 2199 &osc1, 2200 &pll0, 2201 &pll1, 2202 &cpu_clk, 2203 &hsb_clk, 2204 &pba_clk, 2205 &pbb_clk, 2206 &at32_pm_pclk, 2207 &at32_intc0_pclk, 2208 &at32_hmatrix_clk, 2209 &ebi_clk, 2210 &hramc_clk, 2211 &sdramc_clk, 2212 &smc0_pclk, 2213 &smc0_mck, 2214 &pdc_hclk, 2215 &pdc_pclk, 2216 &dw_dmac0_hclk, 2217 &pico_clk, 2218 &pio0_mck, 2219 &pio1_mck, 2220 &pio2_mck, 2221 &pio3_mck, 2222 &pio4_mck, 2223 &at32_tcb0_t0_clk, 2224 &at32_tcb1_t0_clk, 2225 &atmel_psif0_pclk, 2226 &atmel_psif1_pclk, 2227 &atmel_usart0_usart, 2228 &atmel_usart1_usart, 2229 &atmel_usart2_usart, 2230 &atmel_usart3_usart, 2231 &atmel_pwm0_mck, 2232#if defined(CONFIG_CPU_AT32AP7000) 2233 &macb0_hclk, 2234 &macb0_pclk, 2235 &macb1_hclk, 2236 &macb1_pclk, 2237#endif 2238 &atmel_spi0_spi_clk, 2239 &atmel_spi1_spi_clk, 2240 &atmel_twi0_pclk, 2241 &atmel_mci0_pclk, 2242#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002) 2243 &atmel_lcdfb0_hck1, 2244 &atmel_lcdfb0_pixclk, 2245#endif 2246 &ssc0_pclk, 2247 &ssc1_pclk, 2248 &ssc2_pclk, 2249 &usba0_hclk, 2250 &usba0_pclk, 2251 &atmel_ac97c0_pclk, 2252 &abdac0_pclk, 2253 &abdac0_sample_clk, 2254 &gclk0, 2255 &gclk1, 2256 &gclk2, 2257 &gclk3, 2258 &gclk4, 2259}; 2260 2261void __init setup_platform(void) 2262{ 2263 u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0; 2264 int i; 2265 2266 if (pm_readl(MCCTRL) & PM_BIT(PLLSEL)) { 2267 main_clock = &pll0; 2268 cpu_clk.parent = &pll0; 2269 } else { 2270 main_clock = &osc0; 2271 cpu_clk.parent = &osc0; 2272 } 2273 2274 if (pm_readl(PLL0) & PM_BIT(PLLOSC)) 2275 pll0.parent = &osc1; 2276 if (pm_readl(PLL1) & PM_BIT(PLLOSC)) 2277 pll1.parent = &osc1; 2278 2279 genclk_init_parent(&gclk0); 2280 genclk_init_parent(&gclk1); 2281 genclk_init_parent(&gclk2); 2282 genclk_init_parent(&gclk3); 2283 genclk_init_parent(&gclk4); 2284#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002) 2285 genclk_init_parent(&atmel_lcdfb0_pixclk); 2286#endif 2287 genclk_init_parent(&abdac0_sample_clk); 2288 2289 /* 2290 * Build initial dynamic clock list by registering all clocks 2291 * from the array. 2292 * At the same time, turn on all clocks that have at least one 2293 * user already, and turn off everything else. We only do this 2294 * for module clocks, and even though it isn't particularly 2295 * pretty to check the address of the mode function, it should 2296 * do the trick... 2297 */ 2298 for (i = 0; i < ARRAY_SIZE(init_clocks); i++) { 2299 struct clk *clk = init_clocks[i]; 2300 2301 /* first, register clock */ 2302 at32_clk_register(clk); 2303 2304 if (clk->users == 0) 2305 continue; 2306 2307 if (clk->mode == &cpu_clk_mode) 2308 cpu_mask |= 1 << clk->index; 2309 else if (clk->mode == &hsb_clk_mode) 2310 hsb_mask |= 1 << clk->index; 2311 else if (clk->mode == &pba_clk_mode) 2312 pba_mask |= 1 << clk->index; 2313 else if (clk->mode == &pbb_clk_mode) 2314 pbb_mask |= 1 << clk->index; 2315 } 2316 2317 pm_writel(CPU_MASK, cpu_mask); 2318 pm_writel(HSB_MASK, hsb_mask); 2319 pm_writel(PBA_MASK, pba_mask); 2320 pm_writel(PBB_MASK, pbb_mask); 2321 2322 /* Initialize the port muxes */ 2323 at32_init_pio(&pio0_device); 2324 at32_init_pio(&pio1_device); 2325 at32_init_pio(&pio2_device); 2326 at32_init_pio(&pio3_device); 2327 at32_init_pio(&pio4_device); 2328} 2329 2330struct gen_pool *sram_pool; 2331 2332static int __init sram_init(void) 2333{ 2334 struct gen_pool *pool; 2335 2336 /* 1KiB granularity */ 2337 pool = gen_pool_create(10, -1); 2338 if (!pool) 2339 goto fail; 2340 2341 if (gen_pool_add(pool, 0x24000000, 0x8000, -1)) 2342 goto err_pool_add; 2343 2344 sram_pool = pool; 2345 return 0; 2346 2347err_pool_add: 2348 gen_pool_destroy(pool); 2349fail: 2350 pr_err("Failed to create SRAM pool\n"); 2351 return -ENOMEM; 2352} 2353core_initcall(sram_init); 2354