1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Alchemy Db1550/Pb1550 board support 4 * 5 * (c) 2011 Manuel Lauss <manuel.lauss@googlemail.com> 6 */ 7 8#include <linux/clk.h> 9#include <linux/dma-mapping.h> 10#include <linux/gpio.h> 11#include <linux/i2c.h> 12#include <linux/init.h> 13#include <linux/io.h> 14#include <linux/interrupt.h> 15#include <linux/mtd/mtd.h> 16#include <linux/mtd/platnand.h> 17#include <linux/platform_device.h> 18#include <linux/pm.h> 19#include <linux/spi/spi.h> 20#include <linux/spi/flash.h> 21#include <asm/bootinfo.h> 22#include <asm/mach-au1x00/au1000.h> 23#include <asm/mach-au1x00/gpio-au1000.h> 24#include <asm/mach-au1x00/au1xxx_eth.h> 25#include <asm/mach-au1x00/au1xxx_dbdma.h> 26#include <asm/mach-au1x00/au1xxx_psc.h> 27#include <asm/mach-au1x00/au1550_spi.h> 28#include <asm/mach-au1x00/au1550nd.h> 29#include <asm/mach-db1x00/bcsr.h> 30#include <prom.h> 31#include "platform.h" 32 33static void __init db1550_hw_setup(void) 34{ 35 void __iomem *base; 36 unsigned long v; 37 38 /* complete pin setup: assign GPIO16 to PSC0_SYNC1 (SPI cs# line) 39 * as well as PSC1_SYNC for AC97 on PB1550. 40 */ 41 v = alchemy_rdsys(AU1000_SYS_PINFUNC); 42 alchemy_wrsys(v | 1 | SYS_PF_PSC1_S1, AU1000_SYS_PINFUNC); 43 44 /* reset the AC97 codec now, the reset time in the psc-ac97 driver 45 * is apparently too short although it's ridiculous as it is. 46 */ 47 base = (void __iomem *)KSEG1ADDR(AU1550_PSC1_PHYS_ADDR); 48 __raw_writel(PSC_SEL_CLK_SERCLK | PSC_SEL_PS_AC97MODE, 49 base + PSC_SEL_OFFSET); 50 __raw_writel(PSC_CTRL_DISABLE, base + PSC_CTRL_OFFSET); 51 wmb(); 52 __raw_writel(PSC_AC97RST_RST, base + PSC_AC97RST_OFFSET); 53 wmb(); 54} 55 56int __init db1550_board_setup(void) 57{ 58 unsigned short whoami; 59 60 bcsr_init(DB1550_BCSR_PHYS_ADDR, 61 DB1550_BCSR_PHYS_ADDR + DB1550_BCSR_HEXLED_OFS); 62 63 whoami = bcsr_read(BCSR_WHOAMI); /* PB1550 hexled offset differs */ 64 switch (BCSR_WHOAMI_BOARD(whoami)) { 65 case BCSR_WHOAMI_PB1550_SDR: 66 case BCSR_WHOAMI_PB1550_DDR: 67 bcsr_init(PB1550_BCSR_PHYS_ADDR, 68 PB1550_BCSR_PHYS_ADDR + PB1550_BCSR_HEXLED_OFS); 69 case BCSR_WHOAMI_DB1550: 70 break; 71 default: 72 return -ENODEV; 73 } 74 75 pr_info("Alchemy/AMD %s Board, CPLD Rev %d Board-ID %d " \ 76 "Daughtercard ID %d\n", get_system_type(), 77 (whoami >> 4) & 0xf, (whoami >> 8) & 0xf, whoami & 0xf); 78 79 db1550_hw_setup(); 80 return 0; 81} 82 83/*****************************************************************************/ 84 85static u64 au1550_all_dmamask = DMA_BIT_MASK(32); 86 87static struct mtd_partition db1550_spiflash_parts[] = { 88 { 89 .name = "spi_flash", 90 .offset = 0, 91 .size = MTDPART_SIZ_FULL, 92 }, 93}; 94 95static struct flash_platform_data db1550_spiflash_data = { 96 .name = "s25fl010", 97 .parts = db1550_spiflash_parts, 98 .nr_parts = ARRAY_SIZE(db1550_spiflash_parts), 99 .type = "m25p10", 100}; 101 102static struct spi_board_info db1550_spi_devs[] __initdata = { 103 { 104 /* TI TMP121AIDBVR temp sensor */ 105 .modalias = "tmp121", 106 .max_speed_hz = 2400000, 107 .bus_num = 0, 108 .chip_select = 0, 109 .mode = SPI_MODE_0, 110 }, 111 { 112 /* Spansion S25FL001D0FMA SPI flash */ 113 .modalias = "m25p80", 114 .max_speed_hz = 2400000, 115 .bus_num = 0, 116 .chip_select = 1, 117 .mode = SPI_MODE_0, 118 .platform_data = &db1550_spiflash_data, 119 }, 120}; 121 122static struct i2c_board_info db1550_i2c_devs[] __initdata = { 123 { I2C_BOARD_INFO("24c04", 0x52),}, /* AT24C04-10 I2C eeprom */ 124 { I2C_BOARD_INFO("ne1619", 0x2d),}, /* adm1025-compat hwmon */ 125 { I2C_BOARD_INFO("wm8731", 0x1b),}, /* I2S audio codec WM8731 */ 126}; 127 128/**********************************************************************/ 129 130static void au1550_nand_cmd_ctrl(struct nand_chip *this, int cmd, 131 unsigned int ctrl) 132{ 133 unsigned long ioaddr = (unsigned long)this->legacy.IO_ADDR_W; 134 135 ioaddr &= 0xffffff00; 136 137 if (ctrl & NAND_CLE) { 138 ioaddr += MEM_STNAND_CMD; 139 } else if (ctrl & NAND_ALE) { 140 ioaddr += MEM_STNAND_ADDR; 141 } else { 142 /* assume we want to r/w real data by default */ 143 ioaddr += MEM_STNAND_DATA; 144 } 145 this->legacy.IO_ADDR_R = this->legacy.IO_ADDR_W = (void __iomem *)ioaddr; 146 if (cmd != NAND_CMD_NONE) { 147 __raw_writeb(cmd, this->legacy.IO_ADDR_W); 148 wmb(); 149 } 150} 151 152static int au1550_nand_device_ready(struct nand_chip *this) 153{ 154 return alchemy_rdsmem(AU1000_MEM_STSTAT) & 1; 155} 156 157static struct mtd_partition db1550_nand_parts[] = { 158 { 159 .name = "NAND FS 0", 160 .offset = 0, 161 .size = 8 * 1024 * 1024, 162 }, 163 { 164 .name = "NAND FS 1", 165 .offset = MTDPART_OFS_APPEND, 166 .size = MTDPART_SIZ_FULL 167 }, 168}; 169 170struct platform_nand_data db1550_nand_platdata = { 171 .chip = { 172 .nr_chips = 1, 173 .chip_offset = 0, 174 .nr_partitions = ARRAY_SIZE(db1550_nand_parts), 175 .partitions = db1550_nand_parts, 176 .chip_delay = 20, 177 }, 178 .ctrl = { 179 .dev_ready = au1550_nand_device_ready, 180 .cmd_ctrl = au1550_nand_cmd_ctrl, 181 }, 182}; 183 184static struct resource db1550_nand_res[] = { 185 [0] = { 186 .start = 0x20000000, 187 .end = 0x200000ff, 188 .flags = IORESOURCE_MEM, 189 }, 190}; 191 192static struct platform_device db1550_nand_dev = { 193 .name = "gen_nand", 194 .num_resources = ARRAY_SIZE(db1550_nand_res), 195 .resource = db1550_nand_res, 196 .id = -1, 197 .dev = { 198 .platform_data = &db1550_nand_platdata, 199 } 200}; 201 202static struct au1550nd_platdata pb1550_nand_pd = { 203 .parts = db1550_nand_parts, 204 .num_parts = ARRAY_SIZE(db1550_nand_parts), 205 .devwidth = 0, /* x8 NAND default, needs fixing up */ 206}; 207 208static struct platform_device pb1550_nand_dev = { 209 .name = "au1550-nand", 210 .id = -1, 211 .resource = db1550_nand_res, 212 .num_resources = ARRAY_SIZE(db1550_nand_res), 213 .dev = { 214 .platform_data = &pb1550_nand_pd, 215 }, 216}; 217 218static void __init pb1550_nand_setup(void) 219{ 220 int boot_swapboot = (alchemy_rdsmem(AU1000_MEM_STSTAT) & (0x7 << 1)) | 221 ((bcsr_read(BCSR_STATUS) >> 6) & 0x1); 222 223 gpio_direction_input(206); /* de-assert NAND CS# */ 224 switch (boot_swapboot) { 225 case 0: case 2: case 8: case 0xC: case 0xD: 226 /* x16 NAND Flash */ 227 pb1550_nand_pd.devwidth = 1; 228 fallthrough; 229 case 1: case 3: case 9: case 0xE: case 0xF: 230 /* x8 NAND, already set up */ 231 platform_device_register(&pb1550_nand_dev); 232 } 233} 234 235/**********************************************************************/ 236 237static struct resource au1550_psc0_res[] = { 238 [0] = { 239 .start = AU1550_PSC0_PHYS_ADDR, 240 .end = AU1550_PSC0_PHYS_ADDR + 0xfff, 241 .flags = IORESOURCE_MEM, 242 }, 243 [1] = { 244 .start = AU1550_PSC0_INT, 245 .end = AU1550_PSC0_INT, 246 .flags = IORESOURCE_IRQ, 247 }, 248 [2] = { 249 .start = AU1550_DSCR_CMD0_PSC0_TX, 250 .end = AU1550_DSCR_CMD0_PSC0_TX, 251 .flags = IORESOURCE_DMA, 252 }, 253 [3] = { 254 .start = AU1550_DSCR_CMD0_PSC0_RX, 255 .end = AU1550_DSCR_CMD0_PSC0_RX, 256 .flags = IORESOURCE_DMA, 257 }, 258}; 259 260static void db1550_spi_cs_en(struct au1550_spi_info *spi, int cs, int pol) 261{ 262 if (cs) 263 bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SPISEL); 264 else 265 bcsr_mod(BCSR_BOARD, BCSR_BOARD_SPISEL, 0); 266} 267 268static struct au1550_spi_info db1550_spi_platdata = { 269 .mainclk_hz = 48000000, /* PSC0 clock: max. 2.4MHz SPI clk */ 270 .num_chipselect = 2, 271 .activate_cs = db1550_spi_cs_en, 272}; 273 274 275static struct platform_device db1550_spi_dev = { 276 .dev = { 277 .dma_mask = &au1550_all_dmamask, 278 .coherent_dma_mask = DMA_BIT_MASK(32), 279 .platform_data = &db1550_spi_platdata, 280 }, 281 .name = "au1550-spi", 282 .id = 0, /* bus number */ 283 .num_resources = ARRAY_SIZE(au1550_psc0_res), 284 .resource = au1550_psc0_res, 285}; 286 287/**********************************************************************/ 288 289static struct resource au1550_psc1_res[] = { 290 [0] = { 291 .start = AU1550_PSC1_PHYS_ADDR, 292 .end = AU1550_PSC1_PHYS_ADDR + 0xfff, 293 .flags = IORESOURCE_MEM, 294 }, 295 [1] = { 296 .start = AU1550_PSC1_INT, 297 .end = AU1550_PSC1_INT, 298 .flags = IORESOURCE_IRQ, 299 }, 300 [2] = { 301 .start = AU1550_DSCR_CMD0_PSC1_TX, 302 .end = AU1550_DSCR_CMD0_PSC1_TX, 303 .flags = IORESOURCE_DMA, 304 }, 305 [3] = { 306 .start = AU1550_DSCR_CMD0_PSC1_RX, 307 .end = AU1550_DSCR_CMD0_PSC1_RX, 308 .flags = IORESOURCE_DMA, 309 }, 310}; 311 312static struct platform_device db1550_ac97_dev = { 313 .name = "au1xpsc_ac97", 314 .id = 1, /* PSC ID */ 315 .num_resources = ARRAY_SIZE(au1550_psc1_res), 316 .resource = au1550_psc1_res, 317}; 318 319 320static struct resource au1550_psc2_res[] = { 321 [0] = { 322 .start = AU1550_PSC2_PHYS_ADDR, 323 .end = AU1550_PSC2_PHYS_ADDR + 0xfff, 324 .flags = IORESOURCE_MEM, 325 }, 326 [1] = { 327 .start = AU1550_PSC2_INT, 328 .end = AU1550_PSC2_INT, 329 .flags = IORESOURCE_IRQ, 330 }, 331 [2] = { 332 .start = AU1550_DSCR_CMD0_PSC2_TX, 333 .end = AU1550_DSCR_CMD0_PSC2_TX, 334 .flags = IORESOURCE_DMA, 335 }, 336 [3] = { 337 .start = AU1550_DSCR_CMD0_PSC2_RX, 338 .end = AU1550_DSCR_CMD0_PSC2_RX, 339 .flags = IORESOURCE_DMA, 340 }, 341}; 342 343static struct platform_device db1550_i2c_dev = { 344 .name = "au1xpsc_smbus", 345 .id = 0, /* bus number */ 346 .num_resources = ARRAY_SIZE(au1550_psc2_res), 347 .resource = au1550_psc2_res, 348}; 349 350/**********************************************************************/ 351 352static struct resource au1550_psc3_res[] = { 353 [0] = { 354 .start = AU1550_PSC3_PHYS_ADDR, 355 .end = AU1550_PSC3_PHYS_ADDR + 0xfff, 356 .flags = IORESOURCE_MEM, 357 }, 358 [1] = { 359 .start = AU1550_PSC3_INT, 360 .end = AU1550_PSC3_INT, 361 .flags = IORESOURCE_IRQ, 362 }, 363 [2] = { 364 .start = AU1550_DSCR_CMD0_PSC3_TX, 365 .end = AU1550_DSCR_CMD0_PSC3_TX, 366 .flags = IORESOURCE_DMA, 367 }, 368 [3] = { 369 .start = AU1550_DSCR_CMD0_PSC3_RX, 370 .end = AU1550_DSCR_CMD0_PSC3_RX, 371 .flags = IORESOURCE_DMA, 372 }, 373}; 374 375static struct platform_device db1550_i2s_dev = { 376 .name = "au1xpsc_i2s", 377 .id = 3, /* PSC ID */ 378 .num_resources = ARRAY_SIZE(au1550_psc3_res), 379 .resource = au1550_psc3_res, 380}; 381 382/**********************************************************************/ 383 384static struct platform_device db1550_stac_dev = { 385 .name = "ac97-codec", 386 .id = 1, /* on PSC1 */ 387}; 388 389static struct platform_device db1550_ac97dma_dev = { 390 .name = "au1xpsc-pcm", 391 .id = 1, /* on PSC3 */ 392}; 393 394static struct platform_device db1550_i2sdma_dev = { 395 .name = "au1xpsc-pcm", 396 .id = 3, /* on PSC3 */ 397}; 398 399static struct platform_device db1550_sndac97_dev = { 400 .name = "db1550-ac97", 401 .dev = { 402 .dma_mask = &au1550_all_dmamask, 403 .coherent_dma_mask = DMA_BIT_MASK(32), 404 }, 405}; 406 407static struct platform_device db1550_sndi2s_dev = { 408 .name = "db1550-i2s", 409 .dev = { 410 .dma_mask = &au1550_all_dmamask, 411 .coherent_dma_mask = DMA_BIT_MASK(32), 412 }, 413}; 414 415/**********************************************************************/ 416 417static int db1550_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin) 418{ 419 if ((slot < 11) || (slot > 13) || pin == 0) 420 return -1; 421 if (slot == 11) 422 return (pin == 1) ? AU1550_PCI_INTC : 0xff; 423 if (slot == 12) { 424 switch (pin) { 425 case 1: return AU1550_PCI_INTB; 426 case 2: return AU1550_PCI_INTC; 427 case 3: return AU1550_PCI_INTD; 428 case 4: return AU1550_PCI_INTA; 429 } 430 } 431 if (slot == 13) { 432 switch (pin) { 433 case 1: return AU1550_PCI_INTA; 434 case 2: return AU1550_PCI_INTB; 435 case 3: return AU1550_PCI_INTC; 436 case 4: return AU1550_PCI_INTD; 437 } 438 } 439 return -1; 440} 441 442static int pb1550_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin) 443{ 444 if ((slot < 12) || (slot > 13) || pin == 0) 445 return -1; 446 if (slot == 12) { 447 switch (pin) { 448 case 1: return AU1500_PCI_INTB; 449 case 2: return AU1500_PCI_INTC; 450 case 3: return AU1500_PCI_INTD; 451 case 4: return AU1500_PCI_INTA; 452 } 453 } 454 if (slot == 13) { 455 switch (pin) { 456 case 1: return AU1500_PCI_INTA; 457 case 2: return AU1500_PCI_INTB; 458 case 3: return AU1500_PCI_INTC; 459 case 4: return AU1500_PCI_INTD; 460 } 461 } 462 return -1; 463} 464 465static struct resource alchemy_pci_host_res[] = { 466 [0] = { 467 .start = AU1500_PCI_PHYS_ADDR, 468 .end = AU1500_PCI_PHYS_ADDR + 0xfff, 469 .flags = IORESOURCE_MEM, 470 }, 471}; 472 473static struct alchemy_pci_platdata db1550_pci_pd = { 474 .board_map_irq = db1550_map_pci_irq, 475}; 476 477static struct platform_device db1550_pci_host_dev = { 478 .dev.platform_data = &db1550_pci_pd, 479 .name = "alchemy-pci", 480 .id = 0, 481 .num_resources = ARRAY_SIZE(alchemy_pci_host_res), 482 .resource = alchemy_pci_host_res, 483}; 484 485/**********************************************************************/ 486 487static struct platform_device *db1550_devs[] __initdata = { 488 &db1550_i2c_dev, 489 &db1550_ac97_dev, 490 &db1550_spi_dev, 491 &db1550_i2s_dev, 492 &db1550_stac_dev, 493 &db1550_ac97dma_dev, 494 &db1550_i2sdma_dev, 495 &db1550_sndac97_dev, 496 &db1550_sndi2s_dev, 497}; 498 499/* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */ 500int __init db1550_pci_setup(int id) 501{ 502 if (id) 503 db1550_pci_pd.board_map_irq = pb1550_map_pci_irq; 504 return platform_device_register(&db1550_pci_host_dev); 505} 506 507static void __init db1550_devices(void) 508{ 509 alchemy_gpio_direction_output(203, 0); /* red led on */ 510 511 irq_set_irq_type(AU1550_GPIO0_INT, IRQ_TYPE_EDGE_BOTH); /* CD0# */ 512 irq_set_irq_type(AU1550_GPIO1_INT, IRQ_TYPE_EDGE_BOTH); /* CD1# */ 513 irq_set_irq_type(AU1550_GPIO3_INT, IRQ_TYPE_LEVEL_LOW); /* CARD0# */ 514 irq_set_irq_type(AU1550_GPIO5_INT, IRQ_TYPE_LEVEL_LOW); /* CARD1# */ 515 irq_set_irq_type(AU1550_GPIO21_INT, IRQ_TYPE_LEVEL_LOW); /* STSCHG0# */ 516 irq_set_irq_type(AU1550_GPIO22_INT, IRQ_TYPE_LEVEL_LOW); /* STSCHG1# */ 517 518 db1x_register_pcmcia_socket( 519 AU1000_PCMCIA_ATTR_PHYS_ADDR, 520 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1, 521 AU1000_PCMCIA_MEM_PHYS_ADDR, 522 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1, 523 AU1000_PCMCIA_IO_PHYS_ADDR, 524 AU1000_PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1, 525 AU1550_GPIO3_INT, 0, 526 /*AU1550_GPIO21_INT*/0, 0, 0); 527 528 db1x_register_pcmcia_socket( 529 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000, 530 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1, 531 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004000000, 532 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004400000 - 1, 533 AU1000_PCMCIA_IO_PHYS_ADDR + 0x004000000, 534 AU1000_PCMCIA_IO_PHYS_ADDR + 0x004010000 - 1, 535 AU1550_GPIO5_INT, 1, 536 /*AU1550_GPIO22_INT*/0, 0, 1); 537 538 platform_device_register(&db1550_nand_dev); 539 540 alchemy_gpio_direction_output(202, 0); /* green led on */ 541} 542 543static void __init pb1550_devices(void) 544{ 545 irq_set_irq_type(AU1550_GPIO0_INT, IRQ_TYPE_LEVEL_LOW); 546 irq_set_irq_type(AU1550_GPIO1_INT, IRQ_TYPE_LEVEL_LOW); 547 irq_set_irq_type(AU1550_GPIO201_205_INT, IRQ_TYPE_LEVEL_HIGH); 548 549 /* enable both PCMCIA card irqs in the shared line */ 550 alchemy_gpio2_enable_int(201); /* socket 0 card irq */ 551 alchemy_gpio2_enable_int(202); /* socket 1 card irq */ 552 553 /* Pb1550, like all others, also has statuschange irqs; however they're 554 * wired up on one of the Au1550's shared GPIO201_205 line, which also 555 * services the PCMCIA card interrupts. So we ignore statuschange and 556 * use the GPIO201_205 exclusively for card interrupts, since a) pcmcia 557 * drivers are used to shared irqs and b) statuschange isn't really use- 558 * ful anyway. 559 */ 560 db1x_register_pcmcia_socket( 561 AU1000_PCMCIA_ATTR_PHYS_ADDR, 562 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1, 563 AU1000_PCMCIA_MEM_PHYS_ADDR, 564 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1, 565 AU1000_PCMCIA_IO_PHYS_ADDR, 566 AU1000_PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1, 567 AU1550_GPIO201_205_INT, AU1550_GPIO0_INT, 0, 0, 0); 568 569 db1x_register_pcmcia_socket( 570 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008000000, 571 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008400000 - 1, 572 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x008000000, 573 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x008400000 - 1, 574 AU1000_PCMCIA_IO_PHYS_ADDR + 0x008000000, 575 AU1000_PCMCIA_IO_PHYS_ADDR + 0x008010000 - 1, 576 AU1550_GPIO201_205_INT, AU1550_GPIO1_INT, 0, 0, 1); 577 578 pb1550_nand_setup(); 579} 580 581int __init db1550_dev_setup(void) 582{ 583 int swapped, id; 584 struct clk *c; 585 586 id = (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) != BCSR_WHOAMI_DB1550); 587 588 i2c_register_board_info(0, db1550_i2c_devs, 589 ARRAY_SIZE(db1550_i2c_devs)); 590 spi_register_board_info(db1550_spi_devs, 591 ARRAY_SIZE(db1550_spi_devs)); 592 593 c = clk_get(NULL, "psc0_intclk"); 594 if (!IS_ERR(c)) { 595 clk_set_rate(c, 50000000); 596 clk_prepare_enable(c); 597 clk_put(c); 598 } 599 c = clk_get(NULL, "psc2_intclk"); 600 if (!IS_ERR(c)) { 601 clk_set_rate(c, db1550_spi_platdata.mainclk_hz); 602 clk_prepare_enable(c); 603 clk_put(c); 604 } 605 606 /* Audio PSC clock is supplied by codecs (PSC1, 3) FIXME: platdata!! */ 607 __raw_writel(PSC_SEL_CLK_SERCLK, 608 (void __iomem *)KSEG1ADDR(AU1550_PSC1_PHYS_ADDR) + PSC_SEL_OFFSET); 609 wmb(); 610 __raw_writel(PSC_SEL_CLK_SERCLK, 611 (void __iomem *)KSEG1ADDR(AU1550_PSC3_PHYS_ADDR) + PSC_SEL_OFFSET); 612 wmb(); 613 /* SPI/I2C use internally supplied 50MHz source */ 614 __raw_writel(PSC_SEL_CLK_INTCLK, 615 (void __iomem *)KSEG1ADDR(AU1550_PSC0_PHYS_ADDR) + PSC_SEL_OFFSET); 616 wmb(); 617 __raw_writel(PSC_SEL_CLK_INTCLK, 618 (void __iomem *)KSEG1ADDR(AU1550_PSC2_PHYS_ADDR) + PSC_SEL_OFFSET); 619 wmb(); 620 621 id ? pb1550_devices() : db1550_devices(); 622 623 swapped = bcsr_read(BCSR_STATUS) & 624 (id ? BCSR_STATUS_PB1550_SWAPBOOT : BCSR_STATUS_DB1000_SWAPBOOT); 625 db1x_register_norflash(128 << 20, 4, swapped); 626 627 return platform_add_devices(db1550_devs, ARRAY_SIZE(db1550_devs)); 628} 629