?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / arch / mips / alchemy / devboards / db1200.c
blob421d651433b67877629825cafaf58f75ff57265c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * DBAu1200/PBAu1200 board platform device registration
4 *
5 * Copyright (C) 2008-2011 Manuel Lauss
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/module.h>
14 #include <linux/interrupt.h>
15 #include <linux/io.h>
16 #include <linux/leds.h>
17 #include <linux/mmc/host.h>
18 #include <linux/mtd/mtd.h>
19 #include <linux/mtd/platnand.h>
20 #include <linux/platform_device.h>
21 #include <linux/serial_8250.h>
22 #include <linux/spi/spi.h>
23 #include <linux/spi/flash.h>
24 #include <linux/smc91x.h>
25 #include <linux/ata_platform.h>
26 #include <asm/mach-au1x00/au1000.h>
27 #include <asm/mach-au1x00/au1100_mmc.h>
28 #include <asm/mach-au1x00/au1xxx_dbdma.h>
29 #include <asm/mach-au1x00/au1xxx_psc.h>
30 #include <asm/mach-au1x00/au1200fb.h>
31 #include <asm/mach-au1x00/au1550_spi.h>
32 #include <asm/mach-db1x00/bcsr.h>
33
34 #include "platform.h"
35
36 #define BCSR_INT_IDE 0x0001
37 #define BCSR_INT_ETH 0x0002
38 #define BCSR_INT_PC0 0x0004
39 #define BCSR_INT_PC0STSCHG 0x0008
40 #define BCSR_INT_PC1 0x0010
41 #define BCSR_INT_PC1STSCHG 0x0020
42 #define BCSR_INT_DC 0x0040
43 #define BCSR_INT_FLASHBUSY 0x0080
44 #define BCSR_INT_PC0INSERT 0x0100
45 #define BCSR_INT_PC0EJECT 0x0200
46 #define BCSR_INT_PC1INSERT 0x0400
47 #define BCSR_INT_PC1EJECT 0x0800
48 #define BCSR_INT_SD0INSERT 0x1000
49 #define BCSR_INT_SD0EJECT 0x2000
50 #define BCSR_INT_SD1INSERT 0x4000
51 #define BCSR_INT_SD1EJECT 0x8000
52
53 #define DB1200_IDE_PHYS_ADDR 0x18800000
54 #define DB1200_IDE_REG_SHIFT 5
55 #define DB1200_IDE_PHYS_LEN (16 << DB1200_IDE_REG_SHIFT)
56 #define DB1200_ETH_PHYS_ADDR 0x19000300
57 #define DB1200_NAND_PHYS_ADDR 0x20000000
58
59 #define PB1200_IDE_PHYS_ADDR 0x0C800000
60 #define PB1200_ETH_PHYS_ADDR 0x0D000300
61 #define PB1200_NAND_PHYS_ADDR 0x1C000000
62
63 #define DB1200_INT_BEGIN (AU1000_MAX_INTR + 1)
64 #define DB1200_IDE_INT (DB1200_INT_BEGIN + 0)
65 #define DB1200_ETH_INT (DB1200_INT_BEGIN + 1)
66 #define DB1200_PC0_INT (DB1200_INT_BEGIN + 2)
67 #define DB1200_PC0_STSCHG_INT (DB1200_INT_BEGIN + 3)
68 #define DB1200_PC1_INT (DB1200_INT_BEGIN + 4)
69 #define DB1200_PC1_STSCHG_INT (DB1200_INT_BEGIN + 5)
70 #define DB1200_DC_INT (DB1200_INT_BEGIN + 6)
71 #define DB1200_FLASHBUSY_INT (DB1200_INT_BEGIN + 7)
72 #define DB1200_PC0_INSERT_INT (DB1200_INT_BEGIN + 8)
73 #define DB1200_PC0_EJECT_INT (DB1200_INT_BEGIN + 9)
74 #define DB1200_PC1_INSERT_INT (DB1200_INT_BEGIN + 10)
75 #define DB1200_PC1_EJECT_INT (DB1200_INT_BEGIN + 11)
76 #define DB1200_SD0_INSERT_INT (DB1200_INT_BEGIN + 12)
77 #define DB1200_SD0_EJECT_INT (DB1200_INT_BEGIN + 13)
78 #define PB1200_SD1_INSERT_INT (DB1200_INT_BEGIN + 14)
79 #define PB1200_SD1_EJECT_INT (DB1200_INT_BEGIN + 15)
80 #define DB1200_INT_END (DB1200_INT_BEGIN + 15)
81
82 const char *get_system_type(void);
83
84 static int __init db1200_detect_board(void)
85 {
86 int bid;
87
88 /* try the DB1200 first */
89 bcsr_init(DB1200_BCSR_PHYS_ADDR,
90 DB1200_BCSR_PHYS_ADDR + DB1200_BCSR_HEXLED_OFS);
91 if (BCSR_WHOAMI_DB1200 == BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
92 unsigned short t = bcsr_read(BCSR_HEXLEDS);
93 bcsr_write(BCSR_HEXLEDS, ~t);
94 if (bcsr_read(BCSR_HEXLEDS) != t) {
95 bcsr_write(BCSR_HEXLEDS, t);
96 return 0;
97 }
98 }
99
100 /* okay, try the PB1200 then */
101 bcsr_init(PB1200_BCSR_PHYS_ADDR,
102 PB1200_BCSR_PHYS_ADDR + PB1200_BCSR_HEXLED_OFS);
103 bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
104 if ((bid == BCSR_WHOAMI_PB1200_DDR1) ||
105 (bid == BCSR_WHOAMI_PB1200_DDR2)) {
106 unsigned short t = bcsr_read(BCSR_HEXLEDS);
107 bcsr_write(BCSR_HEXLEDS, ~t);
108 if (bcsr_read(BCSR_HEXLEDS) != t) {
109 bcsr_write(BCSR_HEXLEDS, t);
110 return 0;
111 }
112 }
113
114 return 1; /* it's neither */
115 }
116
117 int __init db1200_board_setup(void)
118 {
119 unsigned short whoami;
120
121 if (db1200_detect_board())
122 return -ENODEV;
123
124 whoami = bcsr_read(BCSR_WHOAMI);
125 switch (BCSR_WHOAMI_BOARD(whoami)) {
126 case BCSR_WHOAMI_PB1200_DDR1:
127 case BCSR_WHOAMI_PB1200_DDR2:
128 case BCSR_WHOAMI_DB1200:
129 break;
130 default:
131 return -ENODEV;
132 }
133
134 printk(KERN_INFO "Alchemy/AMD/RMI %s Board, CPLD Rev %d"
135 " Board-ID %d Daughtercard ID %d\n", get_system_type(),
136 (whoami >> 4) & 0xf, (whoami >> 8) & 0xf, whoami & 0xf);
137
138 return 0;
139 }
140
141 /******************************************************************************/
142
143 static u64 au1200_all_dmamask = DMA_BIT_MASK(32);
144
145 static struct mtd_partition db1200_spiflash_parts[] = {
146 {
147 .name = "spi_flash",
148 .offset = 0,
149 .size = MTDPART_SIZ_FULL,
150 },
151 };
152
153 static struct flash_platform_data db1200_spiflash_data = {
154 .name = "s25fl001",
155 .parts = db1200_spiflash_parts,
156 .nr_parts = ARRAY_SIZE(db1200_spiflash_parts),
157 .type = "m25p10",
158 };
159
160 static struct spi_board_info db1200_spi_devs[] __initdata = {
161 {
162 /* TI TMP121AIDBVR temp sensor */
163 .modalias = "tmp121",
164 .max_speed_hz = 2000000,
165 .bus_num = 0,
166 .chip_select = 0,
167 .mode = 0,
168 },
169 {
170 /* Spansion S25FL001D0FMA SPI flash */
171 .modalias = "m25p80",
172 .max_speed_hz = 50000000,
173 .bus_num = 0,
174 .chip_select = 1,
175 .mode = 0,
176 .platform_data = &db1200_spiflash_data,
177 },
178 };
179
180 static struct i2c_board_info db1200_i2c_devs[] __initdata = {
181 { I2C_BOARD_INFO("24c04", 0x52), }, /* AT24C04-10 I2C eeprom */
182 { I2C_BOARD_INFO("ne1619", 0x2d), }, /* adm1025-compat hwmon */
183 { I2C_BOARD_INFO("wm8731", 0x1b), }, /* I2S audio codec WM8731 */
184 };
185
186 /**********************************************************************/
187
188 static void au1200_nand_cmd_ctrl(struct nand_chip *this, int cmd,
189 unsigned int ctrl)
190 {
191 unsigned long ioaddr = (unsigned long)this->legacy.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->legacy.IO_ADDR_R = this->legacy.IO_ADDR_W = (void __iomem *)ioaddr;
204 if (cmd != NAND_CMD_NONE) {
205 __raw_writeb(cmd, this->legacy.IO_ADDR_W);
206 wmb();
207 }
208 }
209
210 static int au1200_nand_device_ready(struct nand_chip *this)
211 {
212 return alchemy_rdsmem(AU1000_MEM_STSTAT) & 1;
213 }
214
215 static struct mtd_partition db1200_nand_parts[] = {
216 {
217 .name = "NAND FS 0",
218 .offset = 0,
219 .size = 8 * 1024 * 1024,
220 },
221 {
222 .name = "NAND FS 1",
223 .offset = MTDPART_OFS_APPEND,
224 .size = MTDPART_SIZ_FULL
225 },
226 };
227
228 struct platform_nand_data db1200_nand_platdata = {
229 .chip = {
230 .nr_chips = 1,
231 .chip_offset = 0,
232 .nr_partitions = ARRAY_SIZE(db1200_nand_parts),
233 .partitions = db1200_nand_parts,
234 .chip_delay = 20,
235 },
236 .ctrl = {
237 .dev_ready = au1200_nand_device_ready,
238 .cmd_ctrl = au1200_nand_cmd_ctrl,
239 },
240 };
241
242 static struct resource db1200_nand_res[] = {
243 [0] = {
244 .start = DB1200_NAND_PHYS_ADDR,
245 .end = DB1200_NAND_PHYS_ADDR + 0xff,
246 .flags = IORESOURCE_MEM,
247 },
248 };
249
250 static struct platform_device db1200_nand_dev = {
251 .name = "gen_nand",
252 .num_resources = ARRAY_SIZE(db1200_nand_res),
253 .resource = db1200_nand_res,
254 .id = -1,
255 .dev = {
256 .platform_data = &db1200_nand_platdata,
257 }
258 };
259
260 /**********************************************************************/
261
262 static struct smc91x_platdata db1200_eth_data = {
263 .flags = SMC91X_NOWAIT | SMC91X_USE_16BIT,
264 .leda = RPC_LED_100_10,
265 .ledb = RPC_LED_TX_RX,
266 };
267
268 static struct resource db1200_eth_res[] = {
269 [0] = {
270 .start = DB1200_ETH_PHYS_ADDR,
271 .end = DB1200_ETH_PHYS_ADDR + 0xf,
272 .flags = IORESOURCE_MEM,
273 },
274 [1] = {
275 .start = DB1200_ETH_INT,
276 .end = DB1200_ETH_INT,
277 .flags = IORESOURCE_IRQ,
278 },
279 };
280
281 static struct platform_device db1200_eth_dev = {
282 .dev = {
283 .platform_data = &db1200_eth_data,
284 },
285 .name = "smc91x",
286 .id = -1,
287 .num_resources = ARRAY_SIZE(db1200_eth_res),
288 .resource = db1200_eth_res,
289 };
290
291 /**********************************************************************/
292
293 static struct pata_platform_info db1200_ide_info = {
294 .ioport_shift = DB1200_IDE_REG_SHIFT,
295 };
296
297 #define IDE_ALT_START (14 << DB1200_IDE_REG_SHIFT)
298 static struct resource db1200_ide_res[] = {
299 [0] = {
300 .start = DB1200_IDE_PHYS_ADDR,
301 .end = DB1200_IDE_PHYS_ADDR + IDE_ALT_START - 1,
302 .flags = IORESOURCE_MEM,
303 },
304 [1] = {
305 .start = DB1200_IDE_PHYS_ADDR + IDE_ALT_START,
306 .end = DB1200_IDE_PHYS_ADDR + DB1200_IDE_PHYS_LEN - 1,
307 .flags = IORESOURCE_MEM,
308 },
309 [2] = {
310 .start = DB1200_IDE_INT,
311 .end = DB1200_IDE_INT,
312 .flags = IORESOURCE_IRQ,
313 },
314 };
315
316 static struct platform_device db1200_ide_dev = {
317 .name = "pata_platform",
318 .id = 0,
319 .dev = {
320 .dma_mask = &au1200_all_dmamask,
321 .coherent_dma_mask = DMA_BIT_MASK(32),
322 .platform_data = &db1200_ide_info,
323 },
324 .num_resources = ARRAY_SIZE(db1200_ide_res),
325 .resource = db1200_ide_res,
326 };
327
328 /**********************************************************************/
329
330 /* SD carddetects: they're supposed to be edge-triggered, but ack
331 * doesn't seem to work (CPLD Rev 2). Instead, the screaming one
332 * is disabled and its counterpart enabled. The 200ms timeout is
333 * because the carddetect usually triggers twice, after debounce.
334 */
335 static irqreturn_t db1200_mmc_cd(int irq, void *ptr)
336 {
337 disable_irq_nosync(irq);
338 return IRQ_WAKE_THREAD;
339 }
340
341 static irqreturn_t db1200_mmc_cdfn(int irq, void *ptr)
342 {
343 void (*mmc_cd)(struct mmc_host *, unsigned long);
344
345 /* link against CONFIG_MMC=m */
346 mmc_cd = symbol_get(mmc_detect_change);
347 if (mmc_cd) {
348 mmc_cd(ptr, msecs_to_jiffies(200));
349 symbol_put(mmc_detect_change);
350 }
351
352 msleep(100); /* debounce */
353 if (irq == DB1200_SD0_INSERT_INT)
354 enable_irq(DB1200_SD0_EJECT_INT);
355 else
356 enable_irq(DB1200_SD0_INSERT_INT);
357
358 return IRQ_HANDLED;
359 }
360
361 static int db1200_mmc_cd_setup(void *mmc_host, int en)
362 {
363 int ret;
364
365 if (en) {
366 ret = request_threaded_irq(DB1200_SD0_INSERT_INT, db1200_mmc_cd,
367 db1200_mmc_cdfn, 0, "sd_insert", mmc_host);
368 if (ret)
369 goto out;
370
371 ret = request_threaded_irq(DB1200_SD0_EJECT_INT, db1200_mmc_cd,
372 db1200_mmc_cdfn, 0, "sd_eject", mmc_host);
373 if (ret) {
374 free_irq(DB1200_SD0_INSERT_INT, mmc_host);
375 goto out;
376 }
377
378 if (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD0INSERT)
379 enable_irq(DB1200_SD0_EJECT_INT);
380 else
381 enable_irq(DB1200_SD0_INSERT_INT);
382
383 } else {
384 free_irq(DB1200_SD0_INSERT_INT, mmc_host);
385 free_irq(DB1200_SD0_EJECT_INT, mmc_host);
386 }
387 ret = 0;
388 out:
389 return ret;
390 }
391
392 static void db1200_mmc_set_power(void *mmc_host, int state)
393 {
394 if (state) {
395 bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD0PWR);
396 msleep(400); /* stabilization time */
397 } else
398 bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD0PWR, 0);
399 }
400
401 static int db1200_mmc_card_readonly(void *mmc_host)
402 {
403 return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD0WP) ? 1 : 0;
404 }
405
406 static int db1200_mmc_card_inserted(void *mmc_host)
407 {
408 return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD0INSERT) ? 1 : 0;
409 }
410
411 static void db1200_mmcled_set(struct led_classdev *led,
412 enum led_brightness brightness)
413 {
414 if (brightness != LED_OFF)
415 bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED0, 0);
416 else
417 bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED0);
418 }
419
420 static struct led_classdev db1200_mmc_led = {
421 .brightness_set = db1200_mmcled_set,
422 };
423
424 /* -- */
425
426 static irqreturn_t pb1200_mmc1_cd(int irq, void *ptr)
427 {
428 disable_irq_nosync(irq);
429 return IRQ_WAKE_THREAD;
430 }
431
432 static irqreturn_t pb1200_mmc1_cdfn(int irq, void *ptr)
433 {
434 void (*mmc_cd)(struct mmc_host *, unsigned long);
435
436 /* link against CONFIG_MMC=m */
437 mmc_cd = symbol_get(mmc_detect_change);
438 if (mmc_cd) {
439 mmc_cd(ptr, msecs_to_jiffies(200));
440 symbol_put(mmc_detect_change);
441 }
442
443 msleep(100); /* debounce */
444 if (irq == PB1200_SD1_INSERT_INT)
445 enable_irq(PB1200_SD1_EJECT_INT);
446 else
447 enable_irq(PB1200_SD1_INSERT_INT);
448
449 return IRQ_HANDLED;
450 }
451
452 static int pb1200_mmc1_cd_setup(void *mmc_host, int en)
453 {
454 int ret;
455
456 if (en) {
457 ret = request_threaded_irq(PB1200_SD1_INSERT_INT, pb1200_mmc1_cd,
458 pb1200_mmc1_cdfn, 0, "sd1_insert", mmc_host);
459 if (ret)
460 goto out;
461
462 ret = request_threaded_irq(PB1200_SD1_EJECT_INT, pb1200_mmc1_cd,
463 pb1200_mmc1_cdfn, 0, "sd1_eject", mmc_host);
464 if (ret) {
465 free_irq(PB1200_SD1_INSERT_INT, mmc_host);
466 goto out;
467 }
468
469 if (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD1INSERT)
470 enable_irq(PB1200_SD1_EJECT_INT);
471 else
472 enable_irq(PB1200_SD1_INSERT_INT);
473
474 } else {
475 free_irq(PB1200_SD1_INSERT_INT, mmc_host);
476 free_irq(PB1200_SD1_EJECT_INT, mmc_host);
477 }
478 ret = 0;
479 out:
480 return ret;
481 }
482
483 static void pb1200_mmc1led_set(struct led_classdev *led,
484 enum led_brightness brightness)
485 {
486 if (brightness != LED_OFF)
487 bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED1, 0);
488 else
489 bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED1);
490 }
491
492 static struct led_classdev pb1200_mmc1_led = {
493 .brightness_set = pb1200_mmc1led_set,
494 };
495
496 static void pb1200_mmc1_set_power(void *mmc_host, int state)
497 {
498 if (state) {
499 bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD1PWR);
500 msleep(400); /* stabilization time */
501 } else
502 bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD1PWR, 0);
503 }
504
505 static int pb1200_mmc1_card_readonly(void *mmc_host)
506 {
507 return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD1WP) ? 1 : 0;
508 }
509
510 static int pb1200_mmc1_card_inserted(void *mmc_host)
511 {
512 return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD1INSERT) ? 1 : 0;
513 }
514
515
516 static struct au1xmmc_platform_data db1200_mmc_platdata[2] = {
517 [0] = {
518 .cd_setup = db1200_mmc_cd_setup,
519 .set_power = db1200_mmc_set_power,
520 .card_inserted = db1200_mmc_card_inserted,
521 .card_readonly = db1200_mmc_card_readonly,
522 .led = &db1200_mmc_led,
523 },
524 [1] = {
525 .cd_setup = pb1200_mmc1_cd_setup,
526 .set_power = pb1200_mmc1_set_power,
527 .card_inserted = pb1200_mmc1_card_inserted,
528 .card_readonly = pb1200_mmc1_card_readonly,
529 .led = &pb1200_mmc1_led,
530 },
531 };
532
533 static struct resource au1200_mmc0_resources[] = {
534 [0] = {
535 .start = AU1100_SD0_PHYS_ADDR,
536 .end = AU1100_SD0_PHYS_ADDR + 0xfff,
537 .flags = IORESOURCE_MEM,
538 },
539 [1] = {
540 .start = AU1200_SD_INT,
541 .end = AU1200_SD_INT,
542 .flags = IORESOURCE_IRQ,
543 },
544 [2] = {
545 .start = AU1200_DSCR_CMD0_SDMS_TX0,
546 .end = AU1200_DSCR_CMD0_SDMS_TX0,
547 .flags = IORESOURCE_DMA,
548 },
549 [3] = {
550 .start = AU1200_DSCR_CMD0_SDMS_RX0,
551 .end = AU1200_DSCR_CMD0_SDMS_RX0,
552 .flags = IORESOURCE_DMA,
553 }
554 };
555
556 static struct platform_device db1200_mmc0_dev = {
557 .name = "au1xxx-mmc",
558 .id = 0,
559 .dev = {
560 .dma_mask = &au1200_all_dmamask,
561 .coherent_dma_mask = DMA_BIT_MASK(32),
562 .platform_data = &db1200_mmc_platdata[0],
563 },
564 .num_resources = ARRAY_SIZE(au1200_mmc0_resources),
565 .resource = au1200_mmc0_resources,
566 };
567
568 static struct resource au1200_mmc1_res[] = {
569 [0] = {
570 .start = AU1100_SD1_PHYS_ADDR,
571 .end = AU1100_SD1_PHYS_ADDR + 0xfff,
572 .flags = IORESOURCE_MEM,
573 },
574 [1] = {
575 .start = AU1200_SD_INT,
576 .end = AU1200_SD_INT,
577 .flags = IORESOURCE_IRQ,
578 },
579 [2] = {
580 .start = AU1200_DSCR_CMD0_SDMS_TX1,
581 .end = AU1200_DSCR_CMD0_SDMS_TX1,
582 .flags = IORESOURCE_DMA,
583 },
584 [3] = {
585 .start = AU1200_DSCR_CMD0_SDMS_RX1,
586 .end = AU1200_DSCR_CMD0_SDMS_RX1,
587 .flags = IORESOURCE_DMA,
588 }
589 };
590
591 static struct platform_device pb1200_mmc1_dev = {
592 .name = "au1xxx-mmc",
593 .id = 1,
594 .dev = {
595 .dma_mask = &au1200_all_dmamask,
596 .coherent_dma_mask = DMA_BIT_MASK(32),
597 .platform_data = &db1200_mmc_platdata[1],
598 },
599 .num_resources = ARRAY_SIZE(au1200_mmc1_res),
600 .resource = au1200_mmc1_res,
601 };
602
603 /**********************************************************************/
604
605 static int db1200fb_panel_index(void)
606 {
607 return (bcsr_read(BCSR_SWITCHES) >> 8) & 0x0f;
608 }
609
610 static int db1200fb_panel_init(void)
611 {
612 /* Apply power */
613 bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD |
614 BCSR_BOARD_LCDBL);
615 return 0;
616 }
617
618 static int db1200fb_panel_shutdown(void)
619 {
620 /* Remove power */
621 bcsr_mod(BCSR_BOARD, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD |
622 BCSR_BOARD_LCDBL, 0);
623 return 0;
624 }
625
626 static struct au1200fb_platdata db1200fb_pd = {
627 .panel_index = db1200fb_panel_index,
628 .panel_init = db1200fb_panel_init,
629 .panel_shutdown = db1200fb_panel_shutdown,
630 };
631
632 static struct resource au1200_lcd_res[] = {
633 [0] = {
634 .start = AU1200_LCD_PHYS_ADDR,
635 .end = AU1200_LCD_PHYS_ADDR + 0x800 - 1,
636 .flags = IORESOURCE_MEM,
637 },
638 [1] = {
639 .start = AU1200_LCD_INT,
640 .end = AU1200_LCD_INT,
641 .flags = IORESOURCE_IRQ,
642 }
643 };
644
645 static struct platform_device au1200_lcd_dev = {
646 .name = "au1200-lcd",
647 .id = 0,
648 .dev = {
649 .dma_mask = &au1200_all_dmamask,
650 .coherent_dma_mask = DMA_BIT_MASK(32),
651 .platform_data = &db1200fb_pd,
652 },
653 .num_resources = ARRAY_SIZE(au1200_lcd_res),
654 .resource = au1200_lcd_res,
655 };
656
657 /**********************************************************************/
658
659 static struct resource au1200_psc0_res[] = {
660 [0] = {
661 .start = AU1550_PSC0_PHYS_ADDR,
662 .end = AU1550_PSC0_PHYS_ADDR + 0xfff,
663 .flags = IORESOURCE_MEM,
664 },
665 [1] = {
666 .start = AU1200_PSC0_INT,
667 .end = AU1200_PSC0_INT,
668 .flags = IORESOURCE_IRQ,
669 },
670 [2] = {
671 .start = AU1200_DSCR_CMD0_PSC0_TX,
672 .end = AU1200_DSCR_CMD0_PSC0_TX,
673 .flags = IORESOURCE_DMA,
674 },
675 [3] = {
676 .start = AU1200_DSCR_CMD0_PSC0_RX,
677 .end = AU1200_DSCR_CMD0_PSC0_RX,
678 .flags = IORESOURCE_DMA,
679 },
680 };
681
682 static struct platform_device db1200_i2c_dev = {
683 .name = "au1xpsc_smbus",
684 .id = 0, /* bus number */
685 .num_resources = ARRAY_SIZE(au1200_psc0_res),
686 .resource = au1200_psc0_res,
687 };
688
689 static void db1200_spi_cs_en(struct au1550_spi_info *spi, int cs, int pol)
690 {
691 if (cs)
692 bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_SPISEL);
693 else
694 bcsr_mod(BCSR_RESETS, BCSR_RESETS_SPISEL, 0);
695 }
696
697 static struct au1550_spi_info db1200_spi_platdata = {
698 .mainclk_hz = 50000000, /* PSC0 clock */
699 .num_chipselect = 2,
700 .activate_cs = db1200_spi_cs_en,
701 };
702
703 static struct platform_device db1200_spi_dev = {
704 .dev = {
705 .dma_mask = &au1200_all_dmamask,
706 .coherent_dma_mask = DMA_BIT_MASK(32),
707 .platform_data = &db1200_spi_platdata,
708 },
709 .name = "au1550-spi",
710 .id = 0, /* bus number */
711 .num_resources = ARRAY_SIZE(au1200_psc0_res),
712 .resource = au1200_psc0_res,
713 };
714
715 static struct resource au1200_psc1_res[] = {
716 [0] = {
717 .start = AU1550_PSC1_PHYS_ADDR,
718 .end = AU1550_PSC1_PHYS_ADDR + 0xfff,
719 .flags = IORESOURCE_MEM,
720 },
721 [1] = {
722 .start = AU1200_PSC1_INT,
723 .end = AU1200_PSC1_INT,
724 .flags = IORESOURCE_IRQ,
725 },
726 [2] = {
727 .start = AU1200_DSCR_CMD0_PSC1_TX,
728 .end = AU1200_DSCR_CMD0_PSC1_TX,
729 .flags = IORESOURCE_DMA,
730 },
731 [3] = {
732 .start = AU1200_DSCR_CMD0_PSC1_RX,
733 .end = AU1200_DSCR_CMD0_PSC1_RX,
734 .flags = IORESOURCE_DMA,
735 },
736 };
737
738 /* AC97 or I2S device */
739 static struct platform_device db1200_audio_dev = {
740 /* name assigned later based on switch setting */
741 .id = 1, /* PSC ID */
742 .num_resources = ARRAY_SIZE(au1200_psc1_res),
743 .resource = au1200_psc1_res,
744 };
745
746 /* DB1200 ASoC card device */
747 static struct platform_device db1200_sound_dev = {
748 /* name assigned later based on switch setting */
749 .id = 1, /* PSC ID */
750 .dev = {
751 .dma_mask = &au1200_all_dmamask,
752 .coherent_dma_mask = DMA_BIT_MASK(32),
753 },
754 };
755
756 static struct platform_device db1200_stac_dev = {
757 .name = "ac97-codec",
758 .id = 1, /* on PSC1 */
759 };
760
761 static struct platform_device db1200_audiodma_dev = {
762 .name = "au1xpsc-pcm",
763 .id = 1, /* PSC ID */
764 };
765
766 static struct platform_device *db1200_devs[] __initdata = {
767 NULL, /* PSC0, selected by S6.8 */
768 &db1200_ide_dev,
769 &db1200_mmc0_dev,
770 &au1200_lcd_dev,
771 &db1200_eth_dev,
772 &db1200_nand_dev,
773 &db1200_audiodma_dev,
774 &db1200_audio_dev,
775 &db1200_stac_dev,
776 &db1200_sound_dev,
777 };
778
779 static struct platform_device *pb1200_devs[] __initdata = {
780 &pb1200_mmc1_dev,
781 };
782
783 /* Some peripheral base addresses differ on the PB1200 */
784 static int __init pb1200_res_fixup(void)
785 {
786 /* CPLD Revs earlier than 4 cause problems */
787 if (BCSR_WHOAMI_CPLD(bcsr_read(BCSR_WHOAMI)) <= 3) {
788 printk(KERN_ERR "WARNING!!!\n");
789 printk(KERN_ERR "WARNING!!!\n");
790 printk(KERN_ERR "PB1200 must be at CPLD rev 4. Please have\n");
791 printk(KERN_ERR "the board updated to latest revisions.\n");
792 printk(KERN_ERR "This software will not work reliably\n");
793 printk(KERN_ERR "on anything older than CPLD rev 4.!\n");
794 printk(KERN_ERR "WARNING!!!\n");
795 printk(KERN_ERR "WARNING!!!\n");
796 return 1;
797 }
798
799 db1200_nand_res[0].start = PB1200_NAND_PHYS_ADDR;
800 db1200_nand_res[0].end = PB1200_NAND_PHYS_ADDR + 0xff;
801 db1200_ide_res[0].start = PB1200_IDE_PHYS_ADDR;
802 db1200_ide_res[0].end = PB1200_IDE_PHYS_ADDR + DB1200_IDE_PHYS_LEN - 1;
803 db1200_eth_res[0].start = PB1200_ETH_PHYS_ADDR;
804 db1200_eth_res[0].end = PB1200_ETH_PHYS_ADDR + 0xff;
805 return 0;
806 }
807
808 int __init db1200_dev_setup(void)
809 {
810 unsigned long pfc;
811 unsigned short sw;
812 int swapped, bid;
813 struct clk *c;
814
815 bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
816 if ((bid == BCSR_WHOAMI_PB1200_DDR1) ||
817 (bid == BCSR_WHOAMI_PB1200_DDR2)) {
818 if (pb1200_res_fixup())
819 return -ENODEV;
820 }
821
822 /* GPIO7 is low-level triggered CPLD cascade */
823 irq_set_irq_type(AU1200_GPIO7_INT, IRQ_TYPE_LEVEL_LOW);
824 bcsr_init_irq(DB1200_INT_BEGIN, DB1200_INT_END, AU1200_GPIO7_INT);
825
826 /* SMBus/SPI on PSC0, Audio on PSC1 */
827 pfc = alchemy_rdsys(AU1000_SYS_PINFUNC);
828 pfc &= ~(SYS_PINFUNC_P0A | SYS_PINFUNC_P0B);
829 pfc &= ~(SYS_PINFUNC_P1A | SYS_PINFUNC_P1B | SYS_PINFUNC_FS3);
830 pfc |= SYS_PINFUNC_P1C; /* SPI is configured later */
831 alchemy_wrsys(pfc, AU1000_SYS_PINFUNC);
832
833 /* get 50MHz for I2C driver on PSC0 */
834 c = clk_get(NULL, "psc0_intclk");
835 if (!IS_ERR(c)) {
836 pfc = clk_round_rate(c, 50000000);
837 if ((pfc < 1) || (abs(50000000 - pfc) > 2500000))
838 pr_warn("DB1200: cant get I2C close to 50MHz\n");
839 else
840 clk_set_rate(c, pfc);
841 clk_prepare_enable(c);
842 clk_put(c);
843 }
844
845 /* insert/eject pairs: one of both is always screaming. To avoid
846 * issues they must not be automatically enabled when initially
847 * requested.
848 */
849 irq_set_status_flags(DB1200_SD0_INSERT_INT, IRQ_NOAUTOEN);
850 irq_set_status_flags(DB1200_SD0_EJECT_INT, IRQ_NOAUTOEN);
851 irq_set_status_flags(DB1200_PC0_INSERT_INT, IRQ_NOAUTOEN);
852 irq_set_status_flags(DB1200_PC0_EJECT_INT, IRQ_NOAUTOEN);
853 irq_set_status_flags(DB1200_PC1_INSERT_INT, IRQ_NOAUTOEN);
854 irq_set_status_flags(DB1200_PC1_EJECT_INT, IRQ_NOAUTOEN);
855
856 i2c_register_board_info(0, db1200_i2c_devs,
857 ARRAY_SIZE(db1200_i2c_devs));
858 spi_register_board_info(db1200_spi_devs,
859 ARRAY_SIZE(db1200_i2c_devs));
860
861 /* SWITCHES: S6.8 I2C/SPI selector (OFF=I2C ON=SPI)
862 * S6.7 AC97/I2S selector (OFF=AC97 ON=I2S)
863 * or S12 on the PB1200.
864 */
865
866 /* NOTE: GPIO215 controls OTG VBUS supply. In SPI mode however
867 * this pin is claimed by PSC0 (unused though, but pinmux doesn't
868 * allow to free it without crippling the SPI interface).
869 * As a result, in SPI mode, OTG simply won't work (PSC0 uses
870 * it as an input pin which is pulled high on the boards).
871 */
872 pfc = alchemy_rdsys(AU1000_SYS_PINFUNC) & ~SYS_PINFUNC_P0A;
873
874 /* switch off OTG VBUS supply */
875 gpio_request(215, "otg-vbus");
876 gpio_direction_output(215, 1);
877
878 printk(KERN_INFO "%s device configuration:\n", get_system_type());
879
880 sw = bcsr_read(BCSR_SWITCHES);
881 if (sw & BCSR_SWITCHES_DIP_8) {
882 db1200_devs[0] = &db1200_i2c_dev;
883 bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC0MUX, 0);
884
885 pfc |= (2 << 17); /* GPIO2 block owns GPIO215 */
886
887 printk(KERN_INFO " S6.8 OFF: PSC0 mode I2C\n");
888 printk(KERN_INFO " OTG port VBUS supply available!\n");
889 } else {
890 db1200_devs[0] = &db1200_spi_dev;
891 bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_PSC0MUX);
892
893 pfc |= (1 << 17); /* PSC0 owns GPIO215 */
894
895 printk(KERN_INFO " S6.8 ON : PSC0 mode SPI\n");
896 printk(KERN_INFO " OTG port VBUS supply disabled\n");
897 }
898 alchemy_wrsys(pfc, AU1000_SYS_PINFUNC);
899
900 /* Audio: DIP7 selects I2S(0)/AC97(1), but need I2C for I2S!
901 * so: DIP7=1 || DIP8=0 => AC97, DIP7=0 && DIP8=1 => I2S
902 */
903 sw &= BCSR_SWITCHES_DIP_8 | BCSR_SWITCHES_DIP_7;
904 if (sw == BCSR_SWITCHES_DIP_8) {
905 bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_PSC1MUX);
906 db1200_audio_dev.name = "au1xpsc_i2s";
907 db1200_sound_dev.name = "db1200-i2s";
908 printk(KERN_INFO " S6.7 ON : PSC1 mode I2S\n");
909 } else {
910 bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC1MUX, 0);
911 db1200_audio_dev.name = "au1xpsc_ac97";
912 db1200_sound_dev.name = "db1200-ac97";
913 printk(KERN_INFO " S6.7 OFF: PSC1 mode AC97\n");
914 }
915
916 /* Audio PSC clock is supplied externally. (FIXME: platdata!!) */
917 __raw_writel(PSC_SEL_CLK_SERCLK,
918 (void __iomem *)KSEG1ADDR(AU1550_PSC1_PHYS_ADDR) + PSC_SEL_OFFSET);
919 wmb();
920
921 db1x_register_pcmcia_socket(
922 AU1000_PCMCIA_ATTR_PHYS_ADDR,
923 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
924 AU1000_PCMCIA_MEM_PHYS_ADDR,
925 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1,
926 AU1000_PCMCIA_IO_PHYS_ADDR,
927 AU1000_PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1,
928 DB1200_PC0_INT, DB1200_PC0_INSERT_INT,
929 /*DB1200_PC0_STSCHG_INT*/0, DB1200_PC0_EJECT_INT, 0);
930
931 db1x_register_pcmcia_socket(
932 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000,
933 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1,
934 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004000000,
935 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004400000 - 1,
936 AU1000_PCMCIA_IO_PHYS_ADDR + 0x004000000,
937 AU1000_PCMCIA_IO_PHYS_ADDR + 0x004010000 - 1,
938 DB1200_PC1_INT, DB1200_PC1_INSERT_INT,
939 /*DB1200_PC1_STSCHG_INT*/0, DB1200_PC1_EJECT_INT, 1);
940
941 swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1200_SWAPBOOT;
942 db1x_register_norflash(64 << 20, 2, swapped);
943
944 platform_add_devices(db1200_devs, ARRAY_SIZE(db1200_devs));
945
946 /* PB1200 is a DB1200 with a 2nd MMC and Camera connector */
947 if ((bid == BCSR_WHOAMI_PB1200_DDR1) ||
948 (bid == BCSR_WHOAMI_PB1200_DDR2))
949 platform_add_devices(pb1200_devs, ARRAY_SIZE(pb1200_devs));
950
951 return 0;
952 }
Linux with added FPC-III support