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 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
85 static u64 au1550_all_dmamask = DMA_BIT_MASK(32);
86
87 static struct mtd_partition db1550_spiflash_parts[] = {
88 {
89 .name = "spi_flash",
90 .offset = 0,
91 .size = MTDPART_SIZ_FULL,
92 },
93 };
94
95 static 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
102 static 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
122 static 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
130 static 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
152 static int au1550_nand_device_ready(struct nand_chip *this)
153 {
154 return alchemy_rdsmem(AU1000_MEM_STSTAT) & 1;
155 }
156
157 static 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
170 struct 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
184 static struct resource db1550_nand_res[] = {
185 [0] = {
186 .start = 0x20000000,
187 .end = 0x200000ff,
188 .flags = IORESOURCE_MEM,
189 },
190 };
191
192 static 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
202 static 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
208 static 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
218 static 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
237 static 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
260 static 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
268 static 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
275 static 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
289 static 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
312 static 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
320 static 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
343 static 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
352 static 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
375 static 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
384 static struct platform_device db1550_stac_dev = {
385 .name = "ac97-codec",
386 .id = 1, /* on PSC1 */
387 };
388
389 static struct platform_device db1550_ac97dma_dev = {
390 .name = "au1xpsc-pcm",
391 .id = 1, /* on PSC3 */
392 };
393
394 static struct platform_device db1550_i2sdma_dev = {
395 .name = "au1xpsc-pcm",
396 .id = 3, /* on PSC3 */
397 };
398
399 static 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
407 static 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
417 static 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
442 static 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
465 static 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
473 static struct alchemy_pci_platdata db1550_pci_pd = {
474 .board_map_irq = db1550_map_pci_irq,
475 };
476
477 static 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
487 static 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 */
500 int __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
507 static 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
543 static 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
581 int __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_i2c_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
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.