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67219913f09f4a9cbb9e29bb7189bab75a75e192
[deliverable/linux.git] / arch / mips / alchemy / devboards / db1200.c
1 /*
2 * DBAu1200/PBAu1200 board platform device registration
3 *
4 * Copyright (C) 2008-2011 Manuel Lauss
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include <linux/dma-mapping.h>
22 #include <linux/gpio.h>
23 #include <linux/i2c.h>
24 #include <linux/init.h>
25 #include <linux/interrupt.h>
26 #include <linux/io.h>
27 #include <linux/leds.h>
28 #include <linux/mmc/host.h>
29 #include <linux/mtd/mtd.h>
30 #include <linux/mtd/nand.h>
31 #include <linux/mtd/partitions.h>
32 #include <linux/platform_device.h>
33 #include <linux/serial_8250.h>
34 #include <linux/spi/spi.h>
35 #include <linux/spi/flash.h>
36 #include <linux/smc91x.h>
37 #include <asm/mach-au1x00/au1000.h>
38 #include <asm/mach-au1x00/au1100_mmc.h>
39 #include <asm/mach-au1x00/au1xxx_dbdma.h>
40 #include <asm/mach-au1x00/au1200fb.h>
41 #include <asm/mach-au1x00/au1550_spi.h>
42 #include <asm/mach-db1x00/bcsr.h>
43 #include <asm/mach-db1x00/db1200.h>
44
45 #include "platform.h"
46
47 static const char *board_type_str(void)
48 {
49 switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
50 case BCSR_WHOAMI_PB1200_DDR1:
51 case BCSR_WHOAMI_PB1200_DDR2:
52 return "PB1200";
53 case BCSR_WHOAMI_DB1200:
54 return "DB1200";
55 default:
56 return "(unknown)";
57 }
58 }
59
60 const char *get_system_type(void)
61 {
62 return board_type_str();
63 }
64
65 static int __init detect_board(void)
66 {
67 int bid;
68
69 /* try the DB1200 first */
70 bcsr_init(DB1200_BCSR_PHYS_ADDR,
71 DB1200_BCSR_PHYS_ADDR + DB1200_BCSR_HEXLED_OFS);
72 if (BCSR_WHOAMI_DB1200 == BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
73 unsigned short t = bcsr_read(BCSR_HEXLEDS);
74 bcsr_write(BCSR_HEXLEDS, ~t);
75 if (bcsr_read(BCSR_HEXLEDS) != t) {
76 bcsr_write(BCSR_HEXLEDS, t);
77 return 0;
78 }
79 }
80
81 /* okay, try the PB1200 then */
82 bcsr_init(PB1200_BCSR_PHYS_ADDR,
83 PB1200_BCSR_PHYS_ADDR + PB1200_BCSR_HEXLED_OFS);
84 bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
85 if ((bid == BCSR_WHOAMI_PB1200_DDR1) ||
86 (bid == BCSR_WHOAMI_PB1200_DDR2)) {
87 unsigned short t = bcsr_read(BCSR_HEXLEDS);
88 bcsr_write(BCSR_HEXLEDS, ~t);
89 if (bcsr_read(BCSR_HEXLEDS) != t) {
90 bcsr_write(BCSR_HEXLEDS, t);
91 return 0;
92 }
93 }
94
95 return 1; /* it's neither */
96 }
97
98 void __init board_setup(void)
99 {
100 unsigned long freq0, clksrc, div, pfc;
101 unsigned short whoami;
102
103 if (detect_board()) {
104 printk(KERN_ERR "NOT running on a DB1200/PB1200 board!\n");
105 return;
106 }
107
108 whoami = bcsr_read(BCSR_WHOAMI);
109 printk(KERN_INFO "Alchemy/AMD/RMI %s Board, CPLD Rev %d"
110 " Board-ID %d Daughtercard ID %d\n", board_type_str(),
111 (whoami >> 4) & 0xf, (whoami >> 8) & 0xf, whoami & 0xf);
112
113 /* SMBus/SPI on PSC0, Audio on PSC1 */
114 pfc = __raw_readl((void __iomem *)SYS_PINFUNC);
115 pfc &= ~(SYS_PINFUNC_P0A | SYS_PINFUNC_P0B);
116 pfc &= ~(SYS_PINFUNC_P1A | SYS_PINFUNC_P1B | SYS_PINFUNC_FS3);
117 pfc |= SYS_PINFUNC_P1C; /* SPI is configured later */
118 __raw_writel(pfc, (void __iomem *)SYS_PINFUNC);
119 wmb();
120
121 /* Clock configurations: PSC0: ~50MHz via Clkgen0, derived from
122 * CPU clock; all other clock generators off/unused.
123 */
124 div = (get_au1x00_speed() + 25000000) / 50000000;
125 if (div & 1)
126 div++;
127 div = ((div >> 1) - 1) & 0xff;
128
129 freq0 = div << SYS_FC_FRDIV0_BIT;
130 __raw_writel(freq0, (void __iomem *)SYS_FREQCTRL0);
131 wmb();
132 freq0 |= SYS_FC_FE0; /* enable F0 */
133 __raw_writel(freq0, (void __iomem *)SYS_FREQCTRL0);
134 wmb();
135
136 /* psc0_intclk comes 1:1 from F0 */
137 clksrc = SYS_CS_MUX_FQ0 << SYS_CS_ME0_BIT;
138 __raw_writel(clksrc, (void __iomem *)SYS_CLKSRC);
139 wmb();
140 }
141
142 /******************************************************************************/
143
144 static struct mtd_partition db1200_spiflash_parts[] = {
145 {
146 .name = "spi_flash",
147 .offset = 0,
148 .size = MTDPART_SIZ_FULL,
149 },
150 };
151
152 static struct flash_platform_data db1200_spiflash_data = {
153 .name = "s25fl001",
154 .parts = db1200_spiflash_parts,
155 .nr_parts = ARRAY_SIZE(db1200_spiflash_parts),
156 .type = "m25p10",
157 };
158
159 static struct spi_board_info db1200_spi_devs[] __initdata = {
160 {
161 /* TI TMP121AIDBVR temp sensor */
162 .modalias = "tmp121",
163 .max_speed_hz = 2000000,
164 .bus_num = 0,
165 .chip_select = 0,
166 .mode = 0,
167 },
168 {
169 /* Spansion S25FL001D0FMA SPI flash */
170 .modalias = "m25p80",
171 .max_speed_hz = 50000000,
172 .bus_num = 0,
173 .chip_select = 1,
174 .mode = 0,
175 .platform_data = &db1200_spiflash_data,
176 },
177 };
178
179 static struct i2c_board_info db1200_i2c_devs[] __initdata = {
180 { I2C_BOARD_INFO("24c04", 0x52), }, /* AT24C04-10 I2C eeprom */
181 { I2C_BOARD_INFO("ne1619", 0x2d), }, /* adm1025-compat hwmon */
182 { I2C_BOARD_INFO("wm8731", 0x1b), }, /* I2S audio codec WM8731 */
183 };
184
185 /**********************************************************************/
186
187 static void au1200_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
188 unsigned int ctrl)
189 {
190 struct nand_chip *this = mtd->priv;
191 unsigned long ioaddr = (unsigned long)this->IO_ADDR_W;
192
193 ioaddr &= 0xffffff00;
194
195 if (ctrl & NAND_CLE) {
196 ioaddr += MEM_STNAND_CMD;
197 } else if (ctrl & NAND_ALE) {
198 ioaddr += MEM_STNAND_ADDR;
199 } else {
200 /* assume we want to r/w real data by default */
201 ioaddr += MEM_STNAND_DATA;
202 }
203 this->IO_ADDR_R = this->IO_ADDR_W = (void __iomem *)ioaddr;
204 if (cmd != NAND_CMD_NONE) {
205 __raw_writeb(cmd, this->IO_ADDR_W);
206 wmb();
207 }
208 }
209
210 static int au1200_nand_device_ready(struct mtd_info *mtd)
211 {
212 return __raw_readl((void __iomem *)MEM_STSTAT) & 1;
213 }
214
215 static const char *db1200_part_probes[] = { "cmdlinepart", NULL };
216
217 static struct mtd_partition db1200_nand_parts[] = {
218 {
219 .name = "NAND FS 0",
220 .offset = 0,
221 .size = 8 * 1024 * 1024,
222 },
223 {
224 .name = "NAND FS 1",
225 .offset = MTDPART_OFS_APPEND,
226 .size = MTDPART_SIZ_FULL
227 },
228 };
229
230 struct platform_nand_data db1200_nand_platdata = {
231 .chip = {
232 .nr_chips = 1,
233 .chip_offset = 0,
234 .nr_partitions = ARRAY_SIZE(db1200_nand_parts),
235 .partitions = db1200_nand_parts,
236 .chip_delay = 20,
237 .part_probe_types = db1200_part_probes,
238 },
239 .ctrl = {
240 .dev_ready = au1200_nand_device_ready,
241 .cmd_ctrl = au1200_nand_cmd_ctrl,
242 },
243 };
244
245 static struct resource db1200_nand_res[] = {
246 [0] = {
247 .start = DB1200_NAND_PHYS_ADDR,
248 .end = DB1200_NAND_PHYS_ADDR + 0xff,
249 .flags = IORESOURCE_MEM,
250 },
251 };
252
253 static struct platform_device db1200_nand_dev = {
254 .name = "gen_nand",
255 .num_resources = ARRAY_SIZE(db1200_nand_res),
256 .resource = db1200_nand_res,
257 .id = -1,
258 .dev = {
259 .platform_data = &db1200_nand_platdata,
260 }
261 };
262
263 /**********************************************************************/
264
265 static struct smc91x_platdata db1200_eth_data = {
266 .flags = SMC91X_NOWAIT | SMC91X_USE_16BIT,
267 .leda = RPC_LED_100_10,
268 .ledb = RPC_LED_TX_RX,
269 };
270
271 static struct resource db1200_eth_res[] = {
272 [0] = {
273 .start = DB1200_ETH_PHYS_ADDR,
274 .end = DB1200_ETH_PHYS_ADDR + 0xf,
275 .flags = IORESOURCE_MEM,
276 },
277 [1] = {
278 .start = DB1200_ETH_INT,
279 .end = DB1200_ETH_INT,
280 .flags = IORESOURCE_IRQ,
281 },
282 };
283
284 static struct platform_device db1200_eth_dev = {
285 .dev = {
286 .platform_data = &db1200_eth_data,
287 },
288 .name = "smc91x",
289 .id = -1,
290 .num_resources = ARRAY_SIZE(db1200_eth_res),
291 .resource = db1200_eth_res,
292 };
293
294 /**********************************************************************/
295
296 static struct resource db1200_ide_res[] = {
297 [0] = {
298 .start = DB1200_IDE_PHYS_ADDR,
299 .end = DB1200_IDE_PHYS_ADDR + DB1200_IDE_PHYS_LEN - 1,
300 .flags = IORESOURCE_MEM,
301 },
302 [1] = {
303 .start = DB1200_IDE_INT,
304 .end = DB1200_IDE_INT,
305 .flags = IORESOURCE_IRQ,
306 },
307 [2] = {
308 .start = AU1200_DSCR_CMD0_DMA_REQ1,
309 .end = AU1200_DSCR_CMD0_DMA_REQ1,
310 .flags = IORESOURCE_DMA,
311 },
312 };
313
314 static u64 au1200_ide_dmamask = DMA_BIT_MASK(32);
315
316 static struct platform_device db1200_ide_dev = {
317 .name = "au1200-ide",
318 .id = 0,
319 .dev = {
320 .dma_mask = &au1200_ide_dmamask,
321 .coherent_dma_mask = DMA_BIT_MASK(32),
322 },
323 .num_resources = ARRAY_SIZE(db1200_ide_res),
324 .resource = db1200_ide_res,
325 };
326
327 /**********************************************************************/
328
329 /* SD carddetects: they're supposed to be edge-triggered, but ack
330 * doesn't seem to work (CPLD Rev 2). Instead, the screaming one
331 * is disabled and its counterpart enabled. The 500ms timeout is
332 * because the carddetect isn't debounced in hardware.
333 */
334 static irqreturn_t db1200_mmc_cd(int irq, void *ptr)
335 {
336 void(*mmc_cd)(struct mmc_host *, unsigned long);
337
338 if (irq == DB1200_SD0_INSERT_INT) {
339 disable_irq_nosync(DB1200_SD0_INSERT_INT);
340 enable_irq(DB1200_SD0_EJECT_INT);
341 } else {
342 disable_irq_nosync(DB1200_SD0_EJECT_INT);
343 enable_irq(DB1200_SD0_INSERT_INT);
344 }
345
346 /* link against CONFIG_MMC=m */
347 mmc_cd = symbol_get(mmc_detect_change);
348 if (mmc_cd) {
349 mmc_cd(ptr, msecs_to_jiffies(500));
350 symbol_put(mmc_detect_change);
351 }
352
353 return IRQ_HANDLED;
354 }
355
356 static int db1200_mmc_cd_setup(void *mmc_host, int en)
357 {
358 int ret;
359
360 if (en) {
361 ret = request_irq(DB1200_SD0_INSERT_INT, db1200_mmc_cd,
362 IRQF_DISABLED, "sd_insert", mmc_host);
363 if (ret)
364 goto out;
365
366 ret = request_irq(DB1200_SD0_EJECT_INT, db1200_mmc_cd,
367 IRQF_DISABLED, "sd_eject", mmc_host);
368 if (ret) {
369 free_irq(DB1200_SD0_INSERT_INT, mmc_host);
370 goto out;
371 }
372
373 if (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD0INSERT)
374 enable_irq(DB1200_SD0_EJECT_INT);
375 else
376 enable_irq(DB1200_SD0_INSERT_INT);
377
378 } else {
379 free_irq(DB1200_SD0_INSERT_INT, mmc_host);
380 free_irq(DB1200_SD0_EJECT_INT, mmc_host);
381 }
382 ret = 0;
383 out:
384 return ret;
385 }
386
387 static void db1200_mmc_set_power(void *mmc_host, int state)
388 {
389 if (state) {
390 bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD0PWR);
391 msleep(400); /* stabilization time */
392 } else
393 bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD0PWR, 0);
394 }
395
396 static int db1200_mmc_card_readonly(void *mmc_host)
397 {
398 return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD0WP) ? 1 : 0;
399 }
400
401 static int db1200_mmc_card_inserted(void *mmc_host)
402 {
403 return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD0INSERT) ? 1 : 0;
404 }
405
406 static void db1200_mmcled_set(struct led_classdev *led,
407 enum led_brightness brightness)
408 {
409 if (brightness != LED_OFF)
410 bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED0, 0);
411 else
412 bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED0);
413 }
414
415 static struct led_classdev db1200_mmc_led = {
416 .brightness_set = db1200_mmcled_set,
417 };
418
419 /* -- */
420
421 static irqreturn_t pb1200_mmc1_cd(int irq, void *ptr)
422 {
423 void(*mmc_cd)(struct mmc_host *, unsigned long);
424
425 if (irq == PB1200_SD1_INSERT_INT) {
426 disable_irq_nosync(PB1200_SD1_INSERT_INT);
427 enable_irq(PB1200_SD1_EJECT_INT);
428 } else {
429 disable_irq_nosync(PB1200_SD1_EJECT_INT);
430 enable_irq(PB1200_SD1_INSERT_INT);
431 }
432
433 /* link against CONFIG_MMC=m */
434 mmc_cd = symbol_get(mmc_detect_change);
435 if (mmc_cd) {
436 mmc_cd(ptr, msecs_to_jiffies(500));
437 symbol_put(mmc_detect_change);
438 }
439
440 return IRQ_HANDLED;
441 }
442
443 static int pb1200_mmc1_cd_setup(void *mmc_host, int en)
444 {
445 int ret;
446
447 if (en) {
448 ret = request_irq(PB1200_SD1_INSERT_INT, pb1200_mmc1_cd, 0,
449 "sd1_insert", mmc_host);
450 if (ret)
451 goto out;
452
453 ret = request_irq(PB1200_SD1_EJECT_INT, pb1200_mmc1_cd, 0,
454 "sd1_eject", mmc_host);
455 if (ret) {
456 free_irq(PB1200_SD1_INSERT_INT, mmc_host);
457 goto out;
458 }
459
460 if (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD1INSERT)
461 enable_irq(PB1200_SD1_EJECT_INT);
462 else
463 enable_irq(PB1200_SD1_INSERT_INT);
464
465 } else {
466 free_irq(PB1200_SD1_INSERT_INT, mmc_host);
467 free_irq(PB1200_SD1_EJECT_INT, mmc_host);
468 }
469 ret = 0;
470 out:
471 return ret;
472 }
473
474 static void pb1200_mmc1led_set(struct led_classdev *led,
475 enum led_brightness brightness)
476 {
477 if (brightness != LED_OFF)
478 bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED1, 0);
479 else
480 bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED1);
481 }
482
483 static struct led_classdev pb1200_mmc1_led = {
484 .brightness_set = pb1200_mmc1led_set,
485 };
486
487 static void pb1200_mmc1_set_power(void *mmc_host, int state)
488 {
489 if (state) {
490 bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD1PWR);
491 msleep(400); /* stabilization time */
492 } else
493 bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD1PWR, 0);
494 }
495
496 static int pb1200_mmc1_card_readonly(void *mmc_host)
497 {
498 return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD1WP) ? 1 : 0;
499 }
500
501 static int pb1200_mmc1_card_inserted(void *mmc_host)
502 {
503 return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD1INSERT) ? 1 : 0;
504 }
505
506
507 static struct au1xmmc_platform_data db1200_mmc_platdata[2] = {
508 [0] = {
509 .cd_setup = db1200_mmc_cd_setup,
510 .set_power = db1200_mmc_set_power,
511 .card_inserted = db1200_mmc_card_inserted,
512 .card_readonly = db1200_mmc_card_readonly,
513 .led = &db1200_mmc_led,
514 },
515 [1] = {
516 .cd_setup = pb1200_mmc1_cd_setup,
517 .set_power = pb1200_mmc1_set_power,
518 .card_inserted = pb1200_mmc1_card_inserted,
519 .card_readonly = pb1200_mmc1_card_readonly,
520 .led = &pb1200_mmc1_led,
521 },
522 };
523
524 static struct resource au1200_mmc0_resources[] = {
525 [0] = {
526 .start = AU1100_SD0_PHYS_ADDR,
527 .end = AU1100_SD0_PHYS_ADDR + 0xfff,
528 .flags = IORESOURCE_MEM,
529 },
530 [1] = {
531 .start = AU1200_SD_INT,
532 .end = AU1200_SD_INT,
533 .flags = IORESOURCE_IRQ,
534 },
535 [2] = {
536 .start = AU1200_DSCR_CMD0_SDMS_TX0,
537 .end = AU1200_DSCR_CMD0_SDMS_TX0,
538 .flags = IORESOURCE_DMA,
539 },
540 [3] = {
541 .start = AU1200_DSCR_CMD0_SDMS_RX0,
542 .end = AU1200_DSCR_CMD0_SDMS_RX0,
543 .flags = IORESOURCE_DMA,
544 }
545 };
546
547 static u64 au1xxx_mmc_dmamask = DMA_BIT_MASK(32);
548
549 static struct platform_device db1200_mmc0_dev = {
550 .name = "au1xxx-mmc",
551 .id = 0,
552 .dev = {
553 .dma_mask = &au1xxx_mmc_dmamask,
554 .coherent_dma_mask = DMA_BIT_MASK(32),
555 .platform_data = &db1200_mmc_platdata[0],
556 },
557 .num_resources = ARRAY_SIZE(au1200_mmc0_resources),
558 .resource = au1200_mmc0_resources,
559 };
560
561 static struct resource au1200_mmc1_res[] = {
562 [0] = {
563 .start = AU1100_SD1_PHYS_ADDR,
564 .end = AU1100_SD1_PHYS_ADDR + 0xfff,
565 .flags = IORESOURCE_MEM,
566 },
567 [1] = {
568 .start = AU1200_SD_INT,
569 .end = AU1200_SD_INT,
570 .flags = IORESOURCE_IRQ,
571 },
572 [2] = {
573 .start = AU1200_DSCR_CMD0_SDMS_TX1,
574 .end = AU1200_DSCR_CMD0_SDMS_TX1,
575 .flags = IORESOURCE_DMA,
576 },
577 [3] = {
578 .start = AU1200_DSCR_CMD0_SDMS_RX1,
579 .end = AU1200_DSCR_CMD0_SDMS_RX1,
580 .flags = IORESOURCE_DMA,
581 }
582 };
583
584 static struct platform_device pb1200_mmc1_dev = {
585 .name = "au1xxx-mmc",
586 .id = 1,
587 .dev = {
588 .dma_mask = &au1xxx_mmc_dmamask,
589 .coherent_dma_mask = DMA_BIT_MASK(32),
590 .platform_data = &db1200_mmc_platdata[1],
591 },
592 .num_resources = ARRAY_SIZE(au1200_mmc1_res),
593 .resource = au1200_mmc1_res,
594 };
595
596 /**********************************************************************/
597
598 static int db1200fb_panel_index(void)
599 {
600 return (bcsr_read(BCSR_SWITCHES) >> 8) & 0x0f;
601 }
602
603 static int db1200fb_panel_init(void)
604 {
605 /* Apply power */
606 bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD |
607 BCSR_BOARD_LCDBL);
608 return 0;
609 }
610
611 static int db1200fb_panel_shutdown(void)
612 {
613 /* Remove power */
614 bcsr_mod(BCSR_BOARD, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD |
615 BCSR_BOARD_LCDBL, 0);
616 return 0;
617 }
618
619 static struct au1200fb_platdata db1200fb_pd = {
620 .panel_index = db1200fb_panel_index,
621 .panel_init = db1200fb_panel_init,
622 .panel_shutdown = db1200fb_panel_shutdown,
623 };
624
625 static struct resource au1200_lcd_res[] = {
626 [0] = {
627 .start = AU1200_LCD_PHYS_ADDR,
628 .end = AU1200_LCD_PHYS_ADDR + 0x800 - 1,
629 .flags = IORESOURCE_MEM,
630 },
631 [1] = {
632 .start = AU1200_LCD_INT,
633 .end = AU1200_LCD_INT,
634 .flags = IORESOURCE_IRQ,
635 }
636 };
637
638 static u64 au1200_lcd_dmamask = DMA_BIT_MASK(32);
639
640 static struct platform_device au1200_lcd_dev = {
641 .name = "au1200-lcd",
642 .id = 0,
643 .dev = {
644 .dma_mask = &au1200_lcd_dmamask,
645 .coherent_dma_mask = DMA_BIT_MASK(32),
646 .platform_data = &db1200fb_pd,
647 },
648 .num_resources = ARRAY_SIZE(au1200_lcd_res),
649 .resource = au1200_lcd_res,
650 };
651
652 /**********************************************************************/
653
654 static struct resource au1200_psc0_res[] = {
655 [0] = {
656 .start = AU1550_PSC0_PHYS_ADDR,
657 .end = AU1550_PSC0_PHYS_ADDR + 0xfff,
658 .flags = IORESOURCE_MEM,
659 },
660 [1] = {
661 .start = AU1200_PSC0_INT,
662 .end = AU1200_PSC0_INT,
663 .flags = IORESOURCE_IRQ,
664 },
665 [2] = {
666 .start = AU1200_DSCR_CMD0_PSC0_TX,
667 .end = AU1200_DSCR_CMD0_PSC0_TX,
668 .flags = IORESOURCE_DMA,
669 },
670 [3] = {
671 .start = AU1200_DSCR_CMD0_PSC0_RX,
672 .end = AU1200_DSCR_CMD0_PSC0_RX,
673 .flags = IORESOURCE_DMA,
674 },
675 };
676
677 static struct platform_device db1200_i2c_dev = {
678 .name = "au1xpsc_smbus",
679 .id = 0, /* bus number */
680 .num_resources = ARRAY_SIZE(au1200_psc0_res),
681 .resource = au1200_psc0_res,
682 };
683
684 static void db1200_spi_cs_en(struct au1550_spi_info *spi, int cs, int pol)
685 {
686 if (cs)
687 bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_SPISEL);
688 else
689 bcsr_mod(BCSR_RESETS, BCSR_RESETS_SPISEL, 0);
690 }
691
692 static struct au1550_spi_info db1200_spi_platdata = {
693 .mainclk_hz = 50000000, /* PSC0 clock */
694 .num_chipselect = 2,
695 .activate_cs = db1200_spi_cs_en,
696 };
697
698 static u64 spi_dmamask = DMA_BIT_MASK(32);
699
700 static struct platform_device db1200_spi_dev = {
701 .dev = {
702 .dma_mask = &spi_dmamask,
703 .coherent_dma_mask = DMA_BIT_MASK(32),
704 .platform_data = &db1200_spi_platdata,
705 },
706 .name = "au1550-spi",
707 .id = 0, /* bus number */
708 .num_resources = ARRAY_SIZE(au1200_psc0_res),
709 .resource = au1200_psc0_res,
710 };
711
712 static struct resource au1200_psc1_res[] = {
713 [0] = {
714 .start = AU1550_PSC1_PHYS_ADDR,
715 .end = AU1550_PSC1_PHYS_ADDR + 0xfff,
716 .flags = IORESOURCE_MEM,
717 },
718 [1] = {
719 .start = AU1200_PSC1_INT,
720 .end = AU1200_PSC1_INT,
721 .flags = IORESOURCE_IRQ,
722 },
723 [2] = {
724 .start = AU1200_DSCR_CMD0_PSC1_TX,
725 .end = AU1200_DSCR_CMD0_PSC1_TX,
726 .flags = IORESOURCE_DMA,
727 },
728 [3] = {
729 .start = AU1200_DSCR_CMD0_PSC1_RX,
730 .end = AU1200_DSCR_CMD0_PSC1_RX,
731 .flags = IORESOURCE_DMA,
732 },
733 };
734
735 /* AC97 or I2S device */
736 static struct platform_device db1200_audio_dev = {
737 /* name assigned later based on switch setting */
738 .id = 1, /* PSC ID */
739 .num_resources = ARRAY_SIZE(au1200_psc1_res),
740 .resource = au1200_psc1_res,
741 };
742
743 /* DB1200 ASoC card device */
744 static struct platform_device db1200_sound_dev = {
745 /* name assigned later based on switch setting */
746 .id = 1, /* PSC ID */
747 };
748
749 static struct platform_device db1200_stac_dev = {
750 .name = "ac97-codec",
751 .id = 1, /* on PSC1 */
752 };
753
754 static struct platform_device db1200_audiodma_dev = {
755 .name = "au1xpsc-pcm",
756 .id = 1, /* PSC ID */
757 };
758
759 static struct platform_device *db1200_devs[] __initdata = {
760 NULL, /* PSC0, selected by S6.8 */
761 &db1200_ide_dev,
762 &db1200_mmc0_dev,
763 &au1200_lcd_dev,
764 &db1200_eth_dev,
765 &db1200_nand_dev,
766 &db1200_audiodma_dev,
767 &db1200_audio_dev,
768 &db1200_stac_dev,
769 &db1200_sound_dev,
770 };
771
772 static struct platform_device *pb1200_devs[] __initdata = {
773 &pb1200_mmc1_dev,
774 };
775
776 /* Some peripheral base addresses differ on the PB1200 */
777 static int __init pb1200_res_fixup(void)
778 {
779 /* CPLD Revs earlier than 4 cause problems */
780 if (BCSR_WHOAMI_CPLD(bcsr_read(BCSR_WHOAMI)) <= 3) {
781 printk(KERN_ERR "WARNING!!!\n");
782 printk(KERN_ERR "WARNING!!!\n");
783 printk(KERN_ERR "PB1200 must be at CPLD rev 4. Please have\n");
784 printk(KERN_ERR "the board updated to latest revisions.\n");
785 printk(KERN_ERR "This software will not work reliably\n");
786 printk(KERN_ERR "on anything older than CPLD rev 4.!\n");
787 printk(KERN_ERR "WARNING!!!\n");
788 printk(KERN_ERR "WARNING!!!\n");
789 return 1;
790 }
791
792 db1200_nand_res[0].start = PB1200_NAND_PHYS_ADDR;
793 db1200_nand_res[0].end = PB1200_NAND_PHYS_ADDR + 0xff;
794 db1200_ide_res[0].start = PB1200_IDE_PHYS_ADDR;
795 db1200_ide_res[0].end = PB1200_IDE_PHYS_ADDR + DB1200_IDE_PHYS_LEN - 1;
796 db1200_eth_res[0].start = PB1200_ETH_PHYS_ADDR;
797 db1200_eth_res[0].end = PB1200_ETH_PHYS_ADDR + 0xff;
798 return 0;
799 }
800
801 static int __init db1200_dev_init(void)
802 {
803 unsigned long pfc;
804 unsigned short sw;
805 int swapped, bid;
806
807 bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
808 if ((bid == BCSR_WHOAMI_PB1200_DDR1) ||
809 (bid == BCSR_WHOAMI_PB1200_DDR2)) {
810 if (pb1200_res_fixup())
811 return -ENODEV;
812 }
813
814 /* GPIO7 is low-level triggered CPLD cascade */
815 irq_set_irq_type(AU1200_GPIO7_INT, IRQ_TYPE_LEVEL_LOW);
816 bcsr_init_irq(DB1200_INT_BEGIN, DB1200_INT_END, AU1200_GPIO7_INT);
817
818 /* insert/eject pairs: one of both is always screaming. To avoid
819 * issues they must not be automatically enabled when initially
820 * requested.
821 */
822 irq_set_status_flags(DB1200_SD0_INSERT_INT, IRQ_NOAUTOEN);
823 irq_set_status_flags(DB1200_SD0_EJECT_INT, IRQ_NOAUTOEN);
824 irq_set_status_flags(DB1200_PC0_INSERT_INT, IRQ_NOAUTOEN);
825 irq_set_status_flags(DB1200_PC0_EJECT_INT, IRQ_NOAUTOEN);
826 irq_set_status_flags(DB1200_PC1_INSERT_INT, IRQ_NOAUTOEN);
827 irq_set_status_flags(DB1200_PC1_EJECT_INT, IRQ_NOAUTOEN);
828
829 i2c_register_board_info(0, db1200_i2c_devs,
830 ARRAY_SIZE(db1200_i2c_devs));
831 spi_register_board_info(db1200_spi_devs,
832 ARRAY_SIZE(db1200_i2c_devs));
833
834 /* SWITCHES: S6.8 I2C/SPI selector (OFF=I2C ON=SPI)
835 * S6.7 AC97/I2S selector (OFF=AC97 ON=I2S)
836 * or S12 on the PB1200.
837 */
838
839 /* NOTE: GPIO215 controls OTG VBUS supply. In SPI mode however
840 * this pin is claimed by PSC0 (unused though, but pinmux doesn't
841 * allow to free it without crippling the SPI interface).
842 * As a result, in SPI mode, OTG simply won't work (PSC0 uses
843 * it as an input pin which is pulled high on the boards).
844 */
845 pfc = __raw_readl((void __iomem *)SYS_PINFUNC) & ~SYS_PINFUNC_P0A;
846
847 /* switch off OTG VBUS supply */
848 gpio_request(215, "otg-vbus");
849 gpio_direction_output(215, 1);
850
851 printk(KERN_INFO "%s device configuration:\n", board_type_str());
852
853 sw = bcsr_read(BCSR_SWITCHES);
854 if (sw & BCSR_SWITCHES_DIP_8) {
855 db1200_devs[0] = &db1200_i2c_dev;
856 bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC0MUX, 0);
857
858 pfc |= (2 << 17); /* GPIO2 block owns GPIO215 */
859
860 printk(KERN_INFO " S6.8 OFF: PSC0 mode I2C\n");
861 printk(KERN_INFO " OTG port VBUS supply available!\n");
862 } else {
863 db1200_devs[0] = &db1200_spi_dev;
864 bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_PSC0MUX);
865
866 pfc |= (1 << 17); /* PSC0 owns GPIO215 */
867
868 printk(KERN_INFO " S6.8 ON : PSC0 mode SPI\n");
869 printk(KERN_INFO " OTG port VBUS supply disabled\n");
870 }
871 __raw_writel(pfc, (void __iomem *)SYS_PINFUNC);
872 wmb();
873
874 /* Audio: DIP7 selects I2S(0)/AC97(1), but need I2C for I2S!
875 * so: DIP7=1 || DIP8=0 => AC97, DIP7=0 && DIP8=1 => I2S
876 */
877 sw &= BCSR_SWITCHES_DIP_8 | BCSR_SWITCHES_DIP_7;
878 if (sw == BCSR_SWITCHES_DIP_8) {
879 bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_PSC1MUX);
880 db1200_audio_dev.name = "au1xpsc_i2s";
881 db1200_sound_dev.name = "db1200-i2s";
882 printk(KERN_INFO " S6.7 ON : PSC1 mode I2S\n");
883 } else {
884 bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC1MUX, 0);
885 db1200_audio_dev.name = "au1xpsc_ac97";
886 db1200_sound_dev.name = "db1200-ac97";
887 printk(KERN_INFO " S6.7 OFF: PSC1 mode AC97\n");
888 }
889
890 /* Audio PSC clock is supplied externally. (FIXME: platdata!!) */
891 __raw_writel(PSC_SEL_CLK_SERCLK,
892 (void __iomem *)KSEG1ADDR(AU1550_PSC1_PHYS_ADDR) + PSC_SEL_OFFSET);
893 wmb();
894
895 db1x_register_pcmcia_socket(
896 AU1000_PCMCIA_ATTR_PHYS_ADDR,
897 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
898 AU1000_PCMCIA_MEM_PHYS_ADDR,
899 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1,
900 AU1000_PCMCIA_IO_PHYS_ADDR,
901 AU1000_PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1,
902 DB1200_PC0_INT, DB1200_PC0_INSERT_INT,
903 /*DB1200_PC0_STSCHG_INT*/0, DB1200_PC0_EJECT_INT, 0);
904
905 db1x_register_pcmcia_socket(
906 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000,
907 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1,
908 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004000000,
909 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004400000 - 1,
910 AU1000_PCMCIA_IO_PHYS_ADDR + 0x004000000,
911 AU1000_PCMCIA_IO_PHYS_ADDR + 0x004010000 - 1,
912 DB1200_PC1_INT, DB1200_PC1_INSERT_INT,
913 /*DB1200_PC1_STSCHG_INT*/0, DB1200_PC1_EJECT_INT, 1);
914
915 swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1200_SWAPBOOT;
916 db1x_register_norflash(64 << 20, 2, swapped);
917
918 platform_add_devices(db1200_devs, ARRAY_SIZE(db1200_devs));
919
920 /* PB1200 is a DB1200 with a 2nd MMC and Camera connector */
921 if ((bid == BCSR_WHOAMI_PB1200_DDR1) ||
922 (bid == BCSR_WHOAMI_PB1200_DDR2))
923 platform_add_devices(pb1200_devs, ARRAY_SIZE(pb1200_devs));
924
925 return 0;
926 }
927 device_initcall(db1200_dev_init);
Linux kernel - Deliverables
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