1/* 2 * DBAu1000/1500/1100 PBAu1100/1500 board support 3 * 4 * Copyright 2000, 2008 MontaVista Software Inc. 5 * Author: MontaVista Software, Inc. <source@mvista.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22#include <linux/clk.h> 23#include <linux/dma-mapping.h> 24#include <linux/gpio.h> 25#include <linux/init.h> 26#include <linux/interrupt.h> 27#include <linux/leds.h> 28#include <linux/mmc/host.h> 29#include <linux/module.h> 30#include <linux/platform_device.h> 31#include <linux/pm.h> 32#include <linux/spi/spi.h> 33#include <linux/spi/spi_gpio.h> 34#include <linux/spi/ads7846.h> 35#include <asm/mach-au1x00/au1000.h> 36#include <asm/mach-au1x00/au1000_dma.h> 37#include <asm/mach-au1x00/au1100_mmc.h> 38#include <asm/mach-db1x00/bcsr.h> 39#include <asm/reboot.h> 40#include <prom.h> 41#include "platform.h" 42 43#define F_SWAPPED (bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1000_SWAPBOOT) 44 45const char *get_system_type(void); 46 47int __init db1000_board_setup(void) 48{ 49 /* initialize board register space */ 50 bcsr_init(DB1000_BCSR_PHYS_ADDR, 51 DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS); 52 53 switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) { 54 case BCSR_WHOAMI_DB1000: 55 case BCSR_WHOAMI_DB1500: 56 case BCSR_WHOAMI_DB1100: 57 case BCSR_WHOAMI_PB1500: 58 case BCSR_WHOAMI_PB1500R2: 59 case BCSR_WHOAMI_PB1100: 60 pr_info("AMD Alchemy %s Board\n", get_system_type()); 61 return 0; 62 } 63 return -ENODEV; 64} 65 66static int db1500_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin) 67{ 68 if ((slot < 12) || (slot > 13) || pin == 0) 69 return -1; 70 if (slot == 12) 71 return (pin == 1) ? AU1500_PCI_INTA : 0xff; 72 if (slot == 13) { 73 switch (pin) { 74 case 1: return AU1500_PCI_INTA; 75 case 2: return AU1500_PCI_INTB; 76 case 3: return AU1500_PCI_INTC; 77 case 4: return AU1500_PCI_INTD; 78 } 79 } 80 return -1; 81} 82 83static struct resource alchemy_pci_host_res[] = { 84 [0] = { 85 .start = AU1500_PCI_PHYS_ADDR, 86 .end = AU1500_PCI_PHYS_ADDR + 0xfff, 87 .flags = IORESOURCE_MEM, 88 }, 89}; 90 91static struct alchemy_pci_platdata db1500_pci_pd = { 92 .board_map_irq = db1500_map_pci_irq, 93}; 94 95static struct platform_device db1500_pci_host_dev = { 96 .dev.platform_data = &db1500_pci_pd, 97 .name = "alchemy-pci", 98 .id = 0, 99 .num_resources = ARRAY_SIZE(alchemy_pci_host_res), 100 .resource = alchemy_pci_host_res, 101}; 102 103int __init db1500_pci_setup(void) 104{ 105 return platform_device_register(&db1500_pci_host_dev); 106} 107 108static struct resource au1100_lcd_resources[] = { 109 [0] = { 110 .start = AU1100_LCD_PHYS_ADDR, 111 .end = AU1100_LCD_PHYS_ADDR + 0x800 - 1, 112 .flags = IORESOURCE_MEM, 113 }, 114 [1] = { 115 .start = AU1100_LCD_INT, 116 .end = AU1100_LCD_INT, 117 .flags = IORESOURCE_IRQ, 118 } 119}; 120 121static u64 au1100_lcd_dmamask = DMA_BIT_MASK(32); 122 123static struct platform_device au1100_lcd_device = { 124 .name = "au1100-lcd", 125 .id = 0, 126 .dev = { 127 .dma_mask = &au1100_lcd_dmamask, 128 .coherent_dma_mask = DMA_BIT_MASK(32), 129 }, 130 .num_resources = ARRAY_SIZE(au1100_lcd_resources), 131 .resource = au1100_lcd_resources, 132}; 133 134static struct resource alchemy_ac97c_res[] = { 135 [0] = { 136 .start = AU1000_AC97_PHYS_ADDR, 137 .end = AU1000_AC97_PHYS_ADDR + 0xfff, 138 .flags = IORESOURCE_MEM, 139 }, 140 [1] = { 141 .start = DMA_ID_AC97C_TX, 142 .end = DMA_ID_AC97C_TX, 143 .flags = IORESOURCE_DMA, 144 }, 145 [2] = { 146 .start = DMA_ID_AC97C_RX, 147 .end = DMA_ID_AC97C_RX, 148 .flags = IORESOURCE_DMA, 149 }, 150}; 151 152static struct platform_device alchemy_ac97c_dev = { 153 .name = "alchemy-ac97c", 154 .id = -1, 155 .resource = alchemy_ac97c_res, 156 .num_resources = ARRAY_SIZE(alchemy_ac97c_res), 157}; 158 159static struct platform_device alchemy_ac97c_dma_dev = { 160 .name = "alchemy-pcm-dma", 161 .id = 0, 162}; 163 164static struct platform_device db1x00_codec_dev = { 165 .name = "ac97-codec", 166 .id = -1, 167}; 168 169static struct platform_device db1x00_audio_dev = { 170 .name = "db1000-audio", 171}; 172 173/******************************************************************************/ 174 175static irqreturn_t db1100_mmc_cd(int irq, void *ptr) 176{ 177 void (*mmc_cd)(struct mmc_host *, unsigned long); 178 /* link against CONFIG_MMC=m */ 179 mmc_cd = symbol_get(mmc_detect_change); 180 mmc_cd(ptr, msecs_to_jiffies(500)); 181 symbol_put(mmc_detect_change); 182 183 return IRQ_HANDLED; 184} 185 186static int db1100_mmc_cd_setup(void *mmc_host, int en) 187{ 188 int ret = 0, irq; 189 190 if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100) 191 irq = AU1100_GPIO19_INT; 192 else 193 irq = AU1100_GPIO14_INT; /* PB1100 SD0 CD# */ 194 195 if (en) { 196 irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH); 197 ret = request_irq(irq, db1100_mmc_cd, 0, 198 "sd0_cd", mmc_host); 199 } else 200 free_irq(irq, mmc_host); 201 return ret; 202} 203 204static int db1100_mmc1_cd_setup(void *mmc_host, int en) 205{ 206 int ret = 0, irq; 207 208 if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100) 209 irq = AU1100_GPIO20_INT; 210 else 211 irq = AU1100_GPIO15_INT; /* PB1100 SD1 CD# */ 212 213 if (en) { 214 irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH); 215 ret = request_irq(irq, db1100_mmc_cd, 0, 216 "sd1_cd", mmc_host); 217 } else 218 free_irq(irq, mmc_host); 219 return ret; 220} 221 222static int db1100_mmc_card_readonly(void *mmc_host) 223{ 224 /* testing suggests that this bit is inverted */ 225 return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD0WP) ? 0 : 1; 226} 227 228static int db1100_mmc_card_inserted(void *mmc_host) 229{ 230 return !alchemy_gpio_get_value(19); 231} 232 233static void db1100_mmc_set_power(void *mmc_host, int state) 234{ 235 int bit; 236 237 if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100) 238 bit = BCSR_BOARD_SD0PWR; 239 else 240 bit = BCSR_BOARD_PB1100_SD0PWR; 241 242 if (state) { 243 bcsr_mod(BCSR_BOARD, 0, bit); 244 msleep(400); /* stabilization time */ 245 } else 246 bcsr_mod(BCSR_BOARD, bit, 0); 247} 248 249static void db1100_mmcled_set(struct led_classdev *led, enum led_brightness b) 250{ 251 if (b != LED_OFF) 252 bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED0, 0); 253 else 254 bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED0); 255} 256 257static struct led_classdev db1100_mmc_led = { 258 .brightness_set = db1100_mmcled_set, 259}; 260 261static int db1100_mmc1_card_readonly(void *mmc_host) 262{ 263 return (bcsr_read(BCSR_BOARD) & BCSR_BOARD_SD1WP) ? 1 : 0; 264} 265 266static int db1100_mmc1_card_inserted(void *mmc_host) 267{ 268 return !alchemy_gpio_get_value(20); 269} 270 271static void db1100_mmc1_set_power(void *mmc_host, int state) 272{ 273 int bit; 274 275 if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100) 276 bit = BCSR_BOARD_SD1PWR; 277 else 278 bit = BCSR_BOARD_PB1100_SD1PWR; 279 280 if (state) { 281 bcsr_mod(BCSR_BOARD, 0, bit); 282 msleep(400); /* stabilization time */ 283 } else 284 bcsr_mod(BCSR_BOARD, bit, 0); 285} 286 287static void db1100_mmc1led_set(struct led_classdev *led, enum led_brightness b) 288{ 289 if (b != LED_OFF) 290 bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED1, 0); 291 else 292 bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED1); 293} 294 295static struct led_classdev db1100_mmc1_led = { 296 .brightness_set = db1100_mmc1led_set, 297}; 298 299static struct au1xmmc_platform_data db1100_mmc_platdata[2] = { 300 [0] = { 301 .cd_setup = db1100_mmc_cd_setup, 302 .set_power = db1100_mmc_set_power, 303 .card_inserted = db1100_mmc_card_inserted, 304 .card_readonly = db1100_mmc_card_readonly, 305 .led = &db1100_mmc_led, 306 }, 307 [1] = { 308 .cd_setup = db1100_mmc1_cd_setup, 309 .set_power = db1100_mmc1_set_power, 310 .card_inserted = db1100_mmc1_card_inserted, 311 .card_readonly = db1100_mmc1_card_readonly, 312 .led = &db1100_mmc1_led, 313 }, 314}; 315 316static struct resource au1100_mmc0_resources[] = { 317 [0] = { 318 .start = AU1100_SD0_PHYS_ADDR, 319 .end = AU1100_SD0_PHYS_ADDR + 0xfff, 320 .flags = IORESOURCE_MEM, 321 }, 322 [1] = { 323 .start = AU1100_SD_INT, 324 .end = AU1100_SD_INT, 325 .flags = IORESOURCE_IRQ, 326 }, 327 [2] = { 328 .start = DMA_ID_SD0_TX, 329 .end = DMA_ID_SD0_TX, 330 .flags = IORESOURCE_DMA, 331 }, 332 [3] = { 333 .start = DMA_ID_SD0_RX, 334 .end = DMA_ID_SD0_RX, 335 .flags = IORESOURCE_DMA, 336 } 337}; 338 339static u64 au1xxx_mmc_dmamask = DMA_BIT_MASK(32); 340 341static struct platform_device db1100_mmc0_dev = { 342 .name = "au1xxx-mmc", 343 .id = 0, 344 .dev = { 345 .dma_mask = &au1xxx_mmc_dmamask, 346 .coherent_dma_mask = DMA_BIT_MASK(32), 347 .platform_data = &db1100_mmc_platdata[0], 348 }, 349 .num_resources = ARRAY_SIZE(au1100_mmc0_resources), 350 .resource = au1100_mmc0_resources, 351}; 352 353static struct resource au1100_mmc1_res[] = { 354 [0] = { 355 .start = AU1100_SD1_PHYS_ADDR, 356 .end = AU1100_SD1_PHYS_ADDR + 0xfff, 357 .flags = IORESOURCE_MEM, 358 }, 359 [1] = { 360 .start = AU1100_SD_INT, 361 .end = AU1100_SD_INT, 362 .flags = IORESOURCE_IRQ, 363 }, 364 [2] = { 365 .start = DMA_ID_SD1_TX, 366 .end = DMA_ID_SD1_TX, 367 .flags = IORESOURCE_DMA, 368 }, 369 [3] = { 370 .start = DMA_ID_SD1_RX, 371 .end = DMA_ID_SD1_RX, 372 .flags = IORESOURCE_DMA, 373 } 374}; 375 376static struct platform_device db1100_mmc1_dev = { 377 .name = "au1xxx-mmc", 378 .id = 1, 379 .dev = { 380 .dma_mask = &au1xxx_mmc_dmamask, 381 .coherent_dma_mask = DMA_BIT_MASK(32), 382 .platform_data = &db1100_mmc_platdata[1], 383 }, 384 .num_resources = ARRAY_SIZE(au1100_mmc1_res), 385 .resource = au1100_mmc1_res, 386}; 387 388/******************************************************************************/ 389 390static void db1000_irda_set_phy_mode(int mode) 391{ 392 unsigned short mask = BCSR_RESETS_IRDA_MODE_MASK | BCSR_RESETS_FIR_SEL; 393 394 switch (mode) { 395 case AU1000_IRDA_PHY_MODE_OFF: 396 bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_OFF); 397 break; 398 case AU1000_IRDA_PHY_MODE_SIR: 399 bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_FULL); 400 break; 401 case AU1000_IRDA_PHY_MODE_FIR: 402 bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_FULL | 403 BCSR_RESETS_FIR_SEL); 404 break; 405 } 406} 407 408static struct au1k_irda_platform_data db1000_irda_platdata = { 409 .set_phy_mode = db1000_irda_set_phy_mode, 410}; 411 412static struct resource au1000_irda_res[] = { 413 [0] = { 414 .start = AU1000_IRDA_PHYS_ADDR, 415 .end = AU1000_IRDA_PHYS_ADDR + 0x0fff, 416 .flags = IORESOURCE_MEM, 417 }, 418 [1] = { 419 .start = AU1000_IRDA_TX_INT, 420 .end = AU1000_IRDA_TX_INT, 421 .flags = IORESOURCE_IRQ, 422 }, 423 [2] = { 424 .start = AU1000_IRDA_RX_INT, 425 .end = AU1000_IRDA_RX_INT, 426 .flags = IORESOURCE_IRQ, 427 }, 428}; 429 430static struct platform_device db1000_irda_dev = { 431 .name = "au1000-irda", 432 .id = -1, 433 .dev = { 434 .platform_data = &db1000_irda_platdata, 435 }, 436 .resource = au1000_irda_res, 437 .num_resources = ARRAY_SIZE(au1000_irda_res), 438}; 439 440/******************************************************************************/ 441 442static struct ads7846_platform_data db1100_touch_pd = { 443 .model = 7846, 444 .vref_mv = 3300, 445 .gpio_pendown = 21, 446}; 447 448static struct spi_gpio_platform_data db1100_spictl_pd = { 449 .sck = 209, 450 .mosi = 208, 451 .miso = 207, 452 .num_chipselect = 1, 453}; 454 455static struct spi_board_info db1100_spi_info[] __initdata = { 456 [0] = { 457 .modalias = "ads7846", 458 .max_speed_hz = 3250000, 459 .bus_num = 0, 460 .chip_select = 0, 461 .mode = 0, 462 .irq = AU1100_GPIO21_INT, 463 .platform_data = &db1100_touch_pd, 464 .controller_data = (void *)210, /* for spi_gpio: CS# GPIO210 */ 465 }, 466}; 467 468static struct platform_device db1100_spi_dev = { 469 .name = "spi_gpio", 470 .id = 0, 471 .dev = { 472 .platform_data = &db1100_spictl_pd, 473 }, 474}; 475 476 477static struct platform_device *db1x00_devs[] = { 478 &db1x00_codec_dev, 479 &alchemy_ac97c_dma_dev, 480 &alchemy_ac97c_dev, 481 &db1x00_audio_dev, 482}; 483 484static struct platform_device *db1000_devs[] = { 485 &db1000_irda_dev, 486}; 487 488static struct platform_device *db1100_devs[] = { 489 &au1100_lcd_device, 490 &db1100_mmc0_dev, 491 &db1100_mmc1_dev, 492 &db1000_irda_dev, 493}; 494 495int __init db1000_dev_setup(void) 496{ 497 int board = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)); 498 int c0, c1, d0, d1, s0, s1, flashsize = 32, twosocks = 1; 499 unsigned long pfc; 500 struct clk *c, *p; 501 502 if (board == BCSR_WHOAMI_DB1500) { 503 c0 = AU1500_GPIO2_INT; 504 c1 = AU1500_GPIO5_INT; 505 d0 = AU1500_GPIO0_INT; 506 d1 = AU1500_GPIO3_INT; 507 s0 = AU1500_GPIO1_INT; 508 s1 = AU1500_GPIO4_INT; 509 } else if (board == BCSR_WHOAMI_DB1100) { 510 c0 = AU1100_GPIO2_INT; 511 c1 = AU1100_GPIO5_INT; 512 d0 = AU1100_GPIO0_INT; 513 d1 = AU1100_GPIO3_INT; 514 s0 = AU1100_GPIO1_INT; 515 s1 = AU1100_GPIO4_INT; 516 517 gpio_request(19, "sd0_cd"); 518 gpio_request(20, "sd1_cd"); 519 gpio_direction_input(19); /* sd0 cd# */ 520 gpio_direction_input(20); /* sd1 cd# */ 521 522 /* spi_gpio on SSI0 pins */ 523 pfc = alchemy_rdsys(AU1000_SYS_PINFUNC); 524 pfc |= (1 << 0); /* SSI0 pins as GPIOs */ 525 alchemy_wrsys(pfc, AU1000_SYS_PINFUNC); 526 527 spi_register_board_info(db1100_spi_info, 528 ARRAY_SIZE(db1100_spi_info)); 529 530 /* link LCD clock to AUXPLL */ 531 p = clk_get(NULL, "auxpll_clk"); 532 c = clk_get(NULL, "lcd_intclk"); 533 if (!IS_ERR(c) && !IS_ERR(p)) { 534 clk_set_parent(c, p); 535 clk_set_rate(c, clk_get_rate(p)); 536 } 537 if (!IS_ERR(c)) 538 clk_put(c); 539 if (!IS_ERR(p)) 540 clk_put(p); 541 542 platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs)); 543 platform_device_register(&db1100_spi_dev); 544 } else if (board == BCSR_WHOAMI_DB1000) { 545 c0 = AU1000_GPIO2_INT; 546 c1 = AU1000_GPIO5_INT; 547 d0 = AU1000_GPIO0_INT; 548 d1 = AU1000_GPIO3_INT; 549 s0 = AU1000_GPIO1_INT; 550 s1 = AU1000_GPIO4_INT; 551 platform_add_devices(db1000_devs, ARRAY_SIZE(db1000_devs)); 552 } else if ((board == BCSR_WHOAMI_PB1500) || 553 (board == BCSR_WHOAMI_PB1500R2)) { 554 c0 = AU1500_GPIO203_INT; 555 d0 = AU1500_GPIO201_INT; 556 s0 = AU1500_GPIO202_INT; 557 twosocks = 0; 558 flashsize = 64; 559 /* RTC and daughtercard irqs */ 560 irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_LOW); 561 irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW); 562 /* EPSON S1D13806 0x1b000000 563 * SRAM 1MB/2MB 0x1a000000 564 * DS1693 RTC 0x0c000000 565 */ 566 } else if (board == BCSR_WHOAMI_PB1100) { 567 c0 = AU1100_GPIO11_INT; 568 d0 = AU1100_GPIO9_INT; 569 s0 = AU1100_GPIO10_INT; 570 twosocks = 0; 571 flashsize = 64; 572 /* pendown, rtc, daughtercard irqs */ 573 irq_set_irq_type(AU1100_GPIO8_INT, IRQ_TYPE_LEVEL_LOW); 574 irq_set_irq_type(AU1100_GPIO12_INT, IRQ_TYPE_LEVEL_LOW); 575 irq_set_irq_type(AU1100_GPIO13_INT, IRQ_TYPE_LEVEL_LOW); 576 /* EPSON S1D13806 0x1b000000 577 * SRAM 1MB/2MB 0x1a000000 578 * DiskOnChip 0x0d000000 579 * DS1693 RTC 0x0c000000 580 */ 581 platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs)); 582 } else 583 return 0; /* unknown board, no further dev setup to do */ 584 585 irq_set_irq_type(d0, IRQ_TYPE_EDGE_BOTH); 586 irq_set_irq_type(c0, IRQ_TYPE_LEVEL_LOW); 587 irq_set_irq_type(s0, IRQ_TYPE_LEVEL_LOW); 588 589 db1x_register_pcmcia_socket( 590 AU1000_PCMCIA_ATTR_PHYS_ADDR, 591 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1, 592 AU1000_PCMCIA_MEM_PHYS_ADDR, 593 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1, 594 AU1000_PCMCIA_IO_PHYS_ADDR, 595 AU1000_PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1, 596 c0, d0, /*s0*/0, 0, 0); 597 598 if (twosocks) { 599 irq_set_irq_type(d1, IRQ_TYPE_EDGE_BOTH); 600 irq_set_irq_type(c1, IRQ_TYPE_LEVEL_LOW); 601 irq_set_irq_type(s1, IRQ_TYPE_LEVEL_LOW); 602 603 db1x_register_pcmcia_socket( 604 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000, 605 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1, 606 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004000000, 607 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004400000 - 1, 608 AU1000_PCMCIA_IO_PHYS_ADDR + 0x004000000, 609 AU1000_PCMCIA_IO_PHYS_ADDR + 0x004010000 - 1, 610 c1, d1, /*s1*/0, 0, 1); 611 } 612 613 platform_add_devices(db1x00_devs, ARRAY_SIZE(db1x00_devs)); 614 db1x_register_norflash(flashsize << 20, 4 /* 32bit */, F_SWAPPED); 615 return 0; 616} 617