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