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 
33 static 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 
56 int __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 		break;
70 	case BCSR_WHOAMI_DB1550:
71 		break;
72 	default:
73 		return -ENODEV;
74 	}
75 
76 	pr_info("Alchemy/AMD %s Board, CPLD Rev %d Board-ID %d	"	\
77 		"Daughtercard ID %d\n", get_system_type(),
78 		(whoami >> 4) & 0xf, (whoami >> 8) & 0xf, whoami & 0xf);
79 
80 	db1550_hw_setup();
81 	return 0;
82 }
83 
84 /*****************************************************************************/
85 
86 static u64 au1550_all_dmamask = DMA_BIT_MASK(32);
87 
88 static struct mtd_partition db1550_spiflash_parts[] = {
89 	{
90 		.name	= "spi_flash",
91 		.offset = 0,
92 		.size	= MTDPART_SIZ_FULL,
93 	},
94 };
95 
96 static struct flash_platform_data db1550_spiflash_data = {
97 	.name		= "s25fl010",
98 	.parts		= db1550_spiflash_parts,
99 	.nr_parts	= ARRAY_SIZE(db1550_spiflash_parts),
100 	.type		= "m25p10",
101 };
102 
103 static struct spi_board_info db1550_spi_devs[] __initdata = {
104 	{
105 		/* TI TMP121AIDBVR temp sensor */
106 		.modalias	= "tmp121",
107 		.max_speed_hz	= 2400000,
108 		.bus_num	= 0,
109 		.chip_select	= 0,
110 		.mode		= SPI_MODE_0,
111 	},
112 	{
113 		/* Spansion S25FL001D0FMA SPI flash */
114 		.modalias	= "m25p80",
115 		.max_speed_hz	= 2400000,
116 		.bus_num	= 0,
117 		.chip_select	= 1,
118 		.mode		= SPI_MODE_0,
119 		.platform_data	= &db1550_spiflash_data,
120 	},
121 };
122 
123 static struct i2c_board_info db1550_i2c_devs[] __initdata = {
124 	{ I2C_BOARD_INFO("24c04",  0x52),}, /* AT24C04-10 I2C eeprom */
125 	{ I2C_BOARD_INFO("ne1619", 0x2d),}, /* adm1025-compat hwmon */
126 	{ I2C_BOARD_INFO("wm8731", 0x1b),}, /* I2S audio codec WM8731 */
127 };
128 
129 /**********************************************************************/
130 
131 static void au1550_nand_cmd_ctrl(struct nand_chip *this, int cmd,
132 				 unsigned int ctrl)
133 {
134 	unsigned long ioaddr = (unsigned long)this->legacy.IO_ADDR_W;
135 
136 	ioaddr &= 0xffffff00;
137 
138 	if (ctrl & NAND_CLE) {
139 		ioaddr += MEM_STNAND_CMD;
140 	} else if (ctrl & NAND_ALE) {
141 		ioaddr += MEM_STNAND_ADDR;
142 	} else {
143 		/* assume we want to r/w real data  by default */
144 		ioaddr += MEM_STNAND_DATA;
145 	}
146 	this->legacy.IO_ADDR_R = this->legacy.IO_ADDR_W = (void __iomem *)ioaddr;
147 	if (cmd != NAND_CMD_NONE) {
148 		__raw_writeb(cmd, this->legacy.IO_ADDR_W);
149 		wmb();
150 	}
151 }
152 
153 static int au1550_nand_device_ready(struct nand_chip *this)
154 {
155 	return alchemy_rdsmem(AU1000_MEM_STSTAT) & 1;
156 }
157 
158 static struct mtd_partition db1550_nand_parts[] = {
159 	{
160 		.name	= "NAND FS 0",
161 		.offset = 0,
162 		.size	= 8 * 1024 * 1024,
163 	},
164 	{
165 		.name	= "NAND FS 1",
166 		.offset = MTDPART_OFS_APPEND,
167 		.size	= MTDPART_SIZ_FULL
168 	},
169 };
170 
171 struct platform_nand_data db1550_nand_platdata = {
172 	.chip = {
173 		.nr_chips	= 1,
174 		.chip_offset	= 0,
175 		.nr_partitions	= ARRAY_SIZE(db1550_nand_parts),
176 		.partitions	= db1550_nand_parts,
177 		.chip_delay	= 20,
178 	},
179 	.ctrl = {
180 		.dev_ready	= au1550_nand_device_ready,
181 		.cmd_ctrl	= au1550_nand_cmd_ctrl,
182 	},
183 };
184 
185 static struct resource db1550_nand_res[] = {
186 	[0] = {
187 		.start	= 0x20000000,
188 		.end	= 0x200000ff,
189 		.flags	= IORESOURCE_MEM,
190 	},
191 };
192 
193 static struct platform_device db1550_nand_dev = {
194 	.name		= "gen_nand",
195 	.num_resources	= ARRAY_SIZE(db1550_nand_res),
196 	.resource	= db1550_nand_res,
197 	.id		= -1,
198 	.dev		= {
199 		.platform_data = &db1550_nand_platdata,
200 	}
201 };
202 
203 static struct au1550nd_platdata pb1550_nand_pd = {
204 	.parts		= db1550_nand_parts,
205 	.num_parts	= ARRAY_SIZE(db1550_nand_parts),
206 	.devwidth	= 0,	/* x8 NAND default, needs fixing up */
207 };
208 
209 static struct platform_device pb1550_nand_dev = {
210 	.name		= "au1550-nand",
211 	.id		= -1,
212 	.resource	= db1550_nand_res,
213 	.num_resources	= ARRAY_SIZE(db1550_nand_res),
214 	.dev		= {
215 		.platform_data	= &pb1550_nand_pd,
216 	},
217 };
218 
219 static void __init pb1550_nand_setup(void)
220 {
221 	int boot_swapboot = (alchemy_rdsmem(AU1000_MEM_STSTAT) & (0x7 << 1)) |
222 			    ((bcsr_read(BCSR_STATUS) >> 6) & 0x1);
223 
224 	gpio_direction_input(206);	/* de-assert NAND CS# */
225 	switch (boot_swapboot) {
226 	case 0: case 2: case 8: case 0xC: case 0xD:
227 		/* x16 NAND Flash */
228 		pb1550_nand_pd.devwidth = 1;
229 		fallthrough;
230 	case 1: case 3: case 9: case 0xE: case 0xF:
231 		/* x8 NAND, already set up */
232 		platform_device_register(&pb1550_nand_dev);
233 	}
234 }
235 
236 /**********************************************************************/
237 
238 static struct resource au1550_psc0_res[] = {
239 	[0] = {
240 		.start	= AU1550_PSC0_PHYS_ADDR,
241 		.end	= AU1550_PSC0_PHYS_ADDR + 0xfff,
242 		.flags	= IORESOURCE_MEM,
243 	},
244 	[1] = {
245 		.start	= AU1550_PSC0_INT,
246 		.end	= AU1550_PSC0_INT,
247 		.flags	= IORESOURCE_IRQ,
248 	},
249 	[2] = {
250 		.start	= AU1550_DSCR_CMD0_PSC0_TX,
251 		.end	= AU1550_DSCR_CMD0_PSC0_TX,
252 		.flags	= IORESOURCE_DMA,
253 	},
254 	[3] = {
255 		.start	= AU1550_DSCR_CMD0_PSC0_RX,
256 		.end	= AU1550_DSCR_CMD0_PSC0_RX,
257 		.flags	= IORESOURCE_DMA,
258 	},
259 };
260 
261 static void db1550_spi_cs_en(struct au1550_spi_info *spi, int cs, int pol)
262 {
263 	if (cs)
264 		bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SPISEL);
265 	else
266 		bcsr_mod(BCSR_BOARD, BCSR_BOARD_SPISEL, 0);
267 }
268 
269 static struct au1550_spi_info db1550_spi_platdata = {
270 	.mainclk_hz	= 48000000,	/* PSC0 clock: max. 2.4MHz SPI clk */
271 	.num_chipselect = 2,
272 	.activate_cs	= db1550_spi_cs_en,
273 };
274 
275 
276 static struct platform_device db1550_spi_dev = {
277 	.dev	= {
278 		.dma_mask		= &au1550_all_dmamask,
279 		.coherent_dma_mask	= DMA_BIT_MASK(32),
280 		.platform_data		= &db1550_spi_platdata,
281 	},
282 	.name		= "au1550-spi",
283 	.id		= 0,	/* bus number */
284 	.num_resources	= ARRAY_SIZE(au1550_psc0_res),
285 	.resource	= au1550_psc0_res,
286 };
287 
288 /**********************************************************************/
289 
290 static struct resource au1550_psc1_res[] = {
291 	[0] = {
292 		.start	= AU1550_PSC1_PHYS_ADDR,
293 		.end	= AU1550_PSC1_PHYS_ADDR + 0xfff,
294 		.flags	= IORESOURCE_MEM,
295 	},
296 	[1] = {
297 		.start	= AU1550_PSC1_INT,
298 		.end	= AU1550_PSC1_INT,
299 		.flags	= IORESOURCE_IRQ,
300 	},
301 	[2] = {
302 		.start	= AU1550_DSCR_CMD0_PSC1_TX,
303 		.end	= AU1550_DSCR_CMD0_PSC1_TX,
304 		.flags	= IORESOURCE_DMA,
305 	},
306 	[3] = {
307 		.start	= AU1550_DSCR_CMD0_PSC1_RX,
308 		.end	= AU1550_DSCR_CMD0_PSC1_RX,
309 		.flags	= IORESOURCE_DMA,
310 	},
311 };
312 
313 static struct platform_device db1550_ac97_dev = {
314 	.name		= "au1xpsc_ac97",
315 	.id		= 1,	/* PSC ID */
316 	.num_resources	= ARRAY_SIZE(au1550_psc1_res),
317 	.resource	= au1550_psc1_res,
318 };
319 
320 
321 static struct resource au1550_psc2_res[] = {
322 	[0] = {
323 		.start	= AU1550_PSC2_PHYS_ADDR,
324 		.end	= AU1550_PSC2_PHYS_ADDR + 0xfff,
325 		.flags	= IORESOURCE_MEM,
326 	},
327 	[1] = {
328 		.start	= AU1550_PSC2_INT,
329 		.end	= AU1550_PSC2_INT,
330 		.flags	= IORESOURCE_IRQ,
331 	},
332 	[2] = {
333 		.start	= AU1550_DSCR_CMD0_PSC2_TX,
334 		.end	= AU1550_DSCR_CMD0_PSC2_TX,
335 		.flags	= IORESOURCE_DMA,
336 	},
337 	[3] = {
338 		.start	= AU1550_DSCR_CMD0_PSC2_RX,
339 		.end	= AU1550_DSCR_CMD0_PSC2_RX,
340 		.flags	= IORESOURCE_DMA,
341 	},
342 };
343 
344 static struct platform_device db1550_i2c_dev = {
345 	.name		= "au1xpsc_smbus",
346 	.id		= 0,	/* bus number */
347 	.num_resources	= ARRAY_SIZE(au1550_psc2_res),
348 	.resource	= au1550_psc2_res,
349 };
350 
351 /**********************************************************************/
352 
353 static struct resource au1550_psc3_res[] = {
354 	[0] = {
355 		.start	= AU1550_PSC3_PHYS_ADDR,
356 		.end	= AU1550_PSC3_PHYS_ADDR + 0xfff,
357 		.flags	= IORESOURCE_MEM,
358 	},
359 	[1] = {
360 		.start	= AU1550_PSC3_INT,
361 		.end	= AU1550_PSC3_INT,
362 		.flags	= IORESOURCE_IRQ,
363 	},
364 	[2] = {
365 		.start	= AU1550_DSCR_CMD0_PSC3_TX,
366 		.end	= AU1550_DSCR_CMD0_PSC3_TX,
367 		.flags	= IORESOURCE_DMA,
368 	},
369 	[3] = {
370 		.start	= AU1550_DSCR_CMD0_PSC3_RX,
371 		.end	= AU1550_DSCR_CMD0_PSC3_RX,
372 		.flags	= IORESOURCE_DMA,
373 	},
374 };
375 
376 static struct platform_device db1550_i2s_dev = {
377 	.name		= "au1xpsc_i2s",
378 	.id		= 3,	/* PSC ID */
379 	.num_resources	= ARRAY_SIZE(au1550_psc3_res),
380 	.resource	= au1550_psc3_res,
381 };
382 
383 /**********************************************************************/
384 
385 static struct platform_device db1550_stac_dev = {
386 	.name		= "ac97-codec",
387 	.id		= 1,	/* on PSC1 */
388 };
389 
390 static struct platform_device db1550_ac97dma_dev = {
391 	.name		= "au1xpsc-pcm",
392 	.id		= 1,	/* on PSC3 */
393 };
394 
395 static struct platform_device db1550_i2sdma_dev = {
396 	.name		= "au1xpsc-pcm",
397 	.id		= 3,	/* on PSC3 */
398 };
399 
400 static struct platform_device db1550_sndac97_dev = {
401 	.name		= "db1550-ac97",
402 	.dev = {
403 		.dma_mask		= &au1550_all_dmamask,
404 		.coherent_dma_mask	= DMA_BIT_MASK(32),
405 	},
406 };
407 
408 static struct platform_device db1550_sndi2s_dev = {
409 	.name		= "db1550-i2s",
410 	.dev = {
411 		.dma_mask		= &au1550_all_dmamask,
412 		.coherent_dma_mask	= DMA_BIT_MASK(32),
413 	},
414 };
415 
416 /**********************************************************************/
417 
418 static int db1550_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
419 {
420 	if ((slot < 11) || (slot > 13) || pin == 0)
421 		return -1;
422 	if (slot == 11)
423 		return (pin == 1) ? AU1550_PCI_INTC : 0xff;
424 	if (slot == 12) {
425 		switch (pin) {
426 		case 1: return AU1550_PCI_INTB;
427 		case 2: return AU1550_PCI_INTC;
428 		case 3: return AU1550_PCI_INTD;
429 		case 4: return AU1550_PCI_INTA;
430 		}
431 	}
432 	if (slot == 13) {
433 		switch (pin) {
434 		case 1: return AU1550_PCI_INTA;
435 		case 2: return AU1550_PCI_INTB;
436 		case 3: return AU1550_PCI_INTC;
437 		case 4: return AU1550_PCI_INTD;
438 		}
439 	}
440 	return -1;
441 }
442 
443 static int pb1550_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
444 {
445 	if ((slot < 12) || (slot > 13) || pin == 0)
446 		return -1;
447 	if (slot == 12) {
448 		switch (pin) {
449 		case 1: return AU1500_PCI_INTB;
450 		case 2: return AU1500_PCI_INTC;
451 		case 3: return AU1500_PCI_INTD;
452 		case 4: return AU1500_PCI_INTA;
453 		}
454 	}
455 	if (slot == 13) {
456 		switch (pin) {
457 		case 1: return AU1500_PCI_INTA;
458 		case 2: return AU1500_PCI_INTB;
459 		case 3: return AU1500_PCI_INTC;
460 		case 4: return AU1500_PCI_INTD;
461 		}
462 	}
463 	return -1;
464 }
465 
466 static struct resource alchemy_pci_host_res[] = {
467 	[0] = {
468 		.start	= AU1500_PCI_PHYS_ADDR,
469 		.end	= AU1500_PCI_PHYS_ADDR + 0xfff,
470 		.flags	= IORESOURCE_MEM,
471 	},
472 };
473 
474 static struct alchemy_pci_platdata db1550_pci_pd = {
475 	.board_map_irq	= db1550_map_pci_irq,
476 };
477 
478 static struct platform_device db1550_pci_host_dev = {
479 	.dev.platform_data = &db1550_pci_pd,
480 	.name		= "alchemy-pci",
481 	.id		= 0,
482 	.num_resources	= ARRAY_SIZE(alchemy_pci_host_res),
483 	.resource	= alchemy_pci_host_res,
484 };
485 
486 /**********************************************************************/
487 
488 static struct platform_device *db1550_devs[] __initdata = {
489 	&db1550_i2c_dev,
490 	&db1550_ac97_dev,
491 	&db1550_spi_dev,
492 	&db1550_i2s_dev,
493 	&db1550_stac_dev,
494 	&db1550_ac97dma_dev,
495 	&db1550_i2sdma_dev,
496 	&db1550_sndac97_dev,
497 	&db1550_sndi2s_dev,
498 };
499 
500 /* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */
501 int __init db1550_pci_setup(int id)
502 {
503 	if (id)
504 		db1550_pci_pd.board_map_irq = pb1550_map_pci_irq;
505 	return platform_device_register(&db1550_pci_host_dev);
506 }
507 
508 static void __init db1550_devices(void)
509 {
510 	alchemy_gpio_direction_output(203, 0);	/* red led on */
511 
512 	irq_set_irq_type(AU1550_GPIO0_INT, IRQ_TYPE_EDGE_BOTH);	 /* CD0# */
513 	irq_set_irq_type(AU1550_GPIO1_INT, IRQ_TYPE_EDGE_BOTH);	 /* CD1# */
514 	irq_set_irq_type(AU1550_GPIO3_INT, IRQ_TYPE_LEVEL_LOW);	 /* CARD0# */
515 	irq_set_irq_type(AU1550_GPIO5_INT, IRQ_TYPE_LEVEL_LOW);	 /* CARD1# */
516 	irq_set_irq_type(AU1550_GPIO21_INT, IRQ_TYPE_LEVEL_LOW); /* STSCHG0# */
517 	irq_set_irq_type(AU1550_GPIO22_INT, IRQ_TYPE_LEVEL_LOW); /* STSCHG1# */
518 
519 	db1x_register_pcmcia_socket(
520 		AU1000_PCMCIA_ATTR_PHYS_ADDR,
521 		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
522 		AU1000_PCMCIA_MEM_PHYS_ADDR,
523 		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
524 		AU1000_PCMCIA_IO_PHYS_ADDR,
525 		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
526 		AU1550_GPIO3_INT, 0,
527 		/*AU1550_GPIO21_INT*/0, 0, 0);
528 
529 	db1x_register_pcmcia_socket(
530 		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000,
531 		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1,
532 		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004000000,
533 		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004400000 - 1,
534 		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004000000,
535 		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004010000 - 1,
536 		AU1550_GPIO5_INT, 1,
537 		/*AU1550_GPIO22_INT*/0, 0, 1);
538 
539 	platform_device_register(&db1550_nand_dev);
540 
541 	alchemy_gpio_direction_output(202, 0);	/* green led on */
542 }
543 
544 static void __init pb1550_devices(void)
545 {
546 	irq_set_irq_type(AU1550_GPIO0_INT, IRQ_TYPE_LEVEL_LOW);
547 	irq_set_irq_type(AU1550_GPIO1_INT, IRQ_TYPE_LEVEL_LOW);
548 	irq_set_irq_type(AU1550_GPIO201_205_INT, IRQ_TYPE_LEVEL_HIGH);
549 
550 	/* enable both PCMCIA card irqs in the shared line */
551 	alchemy_gpio2_enable_int(201);	/* socket 0 card irq */
552 	alchemy_gpio2_enable_int(202);	/* socket 1 card irq */
553 
554 	/* Pb1550, like all others, also has statuschange irqs; however they're
555 	* wired up on one of the Au1550's shared GPIO201_205 line, which also
556 	* services the PCMCIA card interrupts.	So we ignore statuschange and
557 	* use the GPIO201_205 exclusively for card interrupts, since a) pcmcia
558 	* drivers are used to shared irqs and b) statuschange isn't really use-
559 	* ful anyway.
560 	*/
561 	db1x_register_pcmcia_socket(
562 		AU1000_PCMCIA_ATTR_PHYS_ADDR,
563 		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
564 		AU1000_PCMCIA_MEM_PHYS_ADDR,
565 		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
566 		AU1000_PCMCIA_IO_PHYS_ADDR,
567 		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
568 		AU1550_GPIO201_205_INT, AU1550_GPIO0_INT, 0, 0, 0);
569 
570 	db1x_register_pcmcia_socket(
571 		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008000000,
572 		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008400000 - 1,
573 		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x008000000,
574 		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x008400000 - 1,
575 		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x008000000,
576 		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x008010000 - 1,
577 		AU1550_GPIO201_205_INT, AU1550_GPIO1_INT, 0, 0, 1);
578 
579 	pb1550_nand_setup();
580 }
581 
582 int __init db1550_dev_setup(void)
583 {
584 	int swapped, id;
585 	struct clk *c;
586 
587 	id = (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) != BCSR_WHOAMI_DB1550);
588 
589 	i2c_register_board_info(0, db1550_i2c_devs,
590 				ARRAY_SIZE(db1550_i2c_devs));
591 	spi_register_board_info(db1550_spi_devs,
592 				ARRAY_SIZE(db1550_spi_devs));
593 
594 	c = clk_get(NULL, "psc0_intclk");
595 	if (!IS_ERR(c)) {
596 		clk_set_rate(c, 50000000);
597 		clk_prepare_enable(c);
598 		clk_put(c);
599 	}
600 	c = clk_get(NULL, "psc2_intclk");
601 	if (!IS_ERR(c)) {
602 		clk_set_rate(c, db1550_spi_platdata.mainclk_hz);
603 		clk_prepare_enable(c);
604 		clk_put(c);
605 	}
606 
607 	/* Audio PSC clock is supplied by codecs (PSC1, 3) FIXME: platdata!! */
608 	__raw_writel(PSC_SEL_CLK_SERCLK,
609 	    (void __iomem *)KSEG1ADDR(AU1550_PSC1_PHYS_ADDR) + PSC_SEL_OFFSET);
610 	wmb();
611 	__raw_writel(PSC_SEL_CLK_SERCLK,
612 	    (void __iomem *)KSEG1ADDR(AU1550_PSC3_PHYS_ADDR) + PSC_SEL_OFFSET);
613 	wmb();
614 	/* SPI/I2C use internally supplied 50MHz source */
615 	__raw_writel(PSC_SEL_CLK_INTCLK,
616 	    (void __iomem *)KSEG1ADDR(AU1550_PSC0_PHYS_ADDR) + PSC_SEL_OFFSET);
617 	wmb();
618 	__raw_writel(PSC_SEL_CLK_INTCLK,
619 	    (void __iomem *)KSEG1ADDR(AU1550_PSC2_PHYS_ADDR) + PSC_SEL_OFFSET);
620 	wmb();
621 
622 	id ? pb1550_devices() : db1550_devices();
623 
624 	swapped = bcsr_read(BCSR_STATUS) &
625 	       (id ? BCSR_STATUS_PB1550_SWAPBOOT : BCSR_STATUS_DB1000_SWAPBOOT);
626 	db1x_register_norflash(128 << 20, 4, swapped);
627 
628 	return platform_add_devices(db1550_devs, ARRAY_SIZE(db1550_devs));
629 }
630