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First Support on Ginger and OMAP TI
[linux-ginger.git] / arch / arm / mach-davinci / board-dm646x-evm.c
blob6f9fe366b3ae3f18c9c631c173c3314d0266a1b6
1 /*
2 * TI DaVinci DM646X EVM board
3 *
4 * Derived from: arch/arm/mach-davinci/board-evm.c
5 * Copyright (C) 2006 Texas Instruments.
6 *
7 * (C) 2007-2008, MontaVista Software, Inc.
8 *
9 * This file is licensed under the terms of the GNU General Public License
10 * version 2. This program is licensed "as is" without any warranty of any
11 * kind, whether express or implied.
12 *
13 */
14
15 /**************************************************************************
16 * Included Files
17 **************************************************************************/
18
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/init.h>
22 #include <linux/fs.h>
23 #include <linux/major.h>
24 #include <linux/root_dev.h>
25 #include <linux/dma-mapping.h>
26 #include <linux/serial.h>
27 #include <linux/serial_8250.h>
28 #include <linux/leds.h>
29 #include <linux/gpio.h>
30 #include <linux/io.h>
31 #include <linux/platform_device.h>
32 #include <linux/i2c.h>
33 #include <linux/i2c/at24.h>
34 #include <linux/i2c/pcf857x.h>
35 #include <linux/etherdevice.h>
36 #include <linux/davinci_emac.h>
37
38 #include <media/tvp514x.h>
39
40 #include <asm/setup.h>
41 #include <asm/mach-types.h>
42 #include <asm/mach/arch.h>
43 #include <asm/mach/map.h>
44 #include <asm/mach/flash.h>
45
46 #include <mach/dm646x.h>
47 #include <mach/common.h>
48 #include <mach/psc.h>
49 #include <mach/serial.h>
50 #include <mach/i2c.h>
51 #include <mach/mmc.h>
52
53 #if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
54 defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
55 #define HAS_ATA 1
56 #else
57 #define HAS_ATA 0
58 #endif
59
60 /* CPLD Register 0 bits to control ATA */
61 #define DM646X_EVM_ATA_RST BIT(0)
62 #define DM646X_EVM_ATA_PWD BIT(1)
63
64 #define DM646X_EVM_PHY_MASK (0x2)
65 #define DM646X_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */
66
67 #define VIDCLKCTL_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x38)
68 #define VSCLKDIS_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x6c)
69 #define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8))
70 #define VCH2CLK_SYSCLK8 (BIT(9))
71 #define VCH2CLK_AUXCLK (BIT(9) | BIT(8))
72 #define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12))
73 #define VCH3CLK_SYSCLK8 (BIT(13))
74 #define VCH3CLK_AUXCLK (BIT(14) | BIT(13))
75
76 #define VIDCH2CLK (BIT(10))
77 #define VIDCH3CLK (BIT(11))
78 #define VIDCH1CLK (BIT(4))
79 #define TVP7002_INPUT (BIT(4))
80 #define TVP5147_INPUT (~BIT(4))
81 #define VPIF_INPUT_ONE_CHANNEL (BIT(5))
82 #define VPIF_INPUT_TWO_CHANNEL (~BIT(5))
83 #define TVP5147_CH0 "tvp514x-0"
84 #define TVP5147_CH1 "tvp514x-1"
85
86 static void __iomem *vpif_vidclkctl_reg;
87 static void __iomem *vpif_vsclkdis_reg;
88 /* spin lock for updating above registers */
89 static spinlock_t vpif_reg_lock;
90
91 static struct davinci_uart_config uart_config __initdata = {
92 .enabled_uarts = (1 << 0),
93 };
94
95 /* CPLD Register 0 Client: used for I/O Control */
96 static int cpld_reg0_probe(struct i2c_client *client,
97 const struct i2c_device_id *id)
98 {
99 if (HAS_ATA) {
100 u8 data;
101 struct i2c_msg msg[2] = {
102 {
103 .addr = client->addr,
104 .flags = I2C_M_RD,
105 .len = 1,
106 .buf = &data,
107 },
108 {
109 .addr = client->addr,
110 .flags = 0,
111 .len = 1,
112 .buf = &data,
113 },
114 };
115
116 /* Clear ATA_RSTn and ATA_PWD bits to enable ATA operation. */
117 i2c_transfer(client->adapter, msg, 1);
118 data &= ~(DM646X_EVM_ATA_RST | DM646X_EVM_ATA_PWD);
119 i2c_transfer(client->adapter, msg + 1, 1);
120 }
121
122 return 0;
123 }
124
125 static const struct i2c_device_id cpld_reg_ids[] = {
126 { "cpld_reg0", 0, },
127 { },
128 };
129
130 static struct i2c_driver dm6467evm_cpld_driver = {
131 .driver.name = "cpld_reg0",
132 .id_table = cpld_reg_ids,
133 .probe = cpld_reg0_probe,
134 };
135
136 /* LEDS */
137
138 static struct gpio_led evm_leds[] = {
139 { .name = "DS1", .active_low = 1, },
140 { .name = "DS2", .active_low = 1, },
141 { .name = "DS3", .active_low = 1, },
142 { .name = "DS4", .active_low = 1, },
143 };
144
145 static __initconst struct gpio_led_platform_data evm_led_data = {
146 .num_leds = ARRAY_SIZE(evm_leds),
147 .leds = evm_leds,
148 };
149
150 static struct platform_device *evm_led_dev;
151
152 static int evm_led_setup(struct i2c_client *client, int gpio,
153 unsigned int ngpio, void *c)
154 {
155 struct gpio_led *leds = evm_leds;
156 int status;
157
158 while (ngpio--) {
159 leds->gpio = gpio++;
160 leds++;
161 };
162
163 evm_led_dev = platform_device_alloc("leds-gpio", 0);
164 platform_device_add_data(evm_led_dev, &evm_led_data,
165 sizeof(evm_led_data));
166
167 evm_led_dev->dev.parent = &client->dev;
168 status = platform_device_add(evm_led_dev);
169 if (status < 0) {
170 platform_device_put(evm_led_dev);
171 evm_led_dev = NULL;
172 }
173 return status;
174 }
175
176 static int evm_led_teardown(struct i2c_client *client, int gpio,
177 unsigned ngpio, void *c)
178 {
179 if (evm_led_dev) {
180 platform_device_unregister(evm_led_dev);
181 evm_led_dev = NULL;
182 }
183 return 0;
184 }
185
186 static int evm_sw_gpio[4] = { -EINVAL, -EINVAL, -EINVAL, -EINVAL };
187
188 static int evm_sw_setup(struct i2c_client *client, int gpio,
189 unsigned ngpio, void *c)
190 {
191 int status;
192 int i;
193 char label[10];
194
195 for (i = 0; i < 4; ++i) {
196 snprintf(label, 10, "user_sw%d", i);
197 status = gpio_request(gpio, label);
198 if (status)
199 goto out_free;
200 evm_sw_gpio[i] = gpio++;
201
202 status = gpio_direction_input(evm_sw_gpio[i]);
203 if (status) {
204 gpio_free(evm_sw_gpio[i]);
205 evm_sw_gpio[i] = -EINVAL;
206 goto out_free;
207 }
208
209 status = gpio_export(evm_sw_gpio[i], 0);
210 if (status) {
211 gpio_free(evm_sw_gpio[i]);
212 evm_sw_gpio[i] = -EINVAL;
213 goto out_free;
214 }
215 }
216 return status;
217 out_free:
218 for (i = 0; i < 4; ++i) {
219 if (evm_sw_gpio[i] != -EINVAL) {
220 gpio_free(evm_sw_gpio[i]);
221 evm_sw_gpio[i] = -EINVAL;
222 }
223 }
224 return status;
225 }
226
227 static int evm_sw_teardown(struct i2c_client *client, int gpio,
228 unsigned ngpio, void *c)
229 {
230 int i;
231
232 for (i = 0; i < 4; ++i) {
233 if (evm_sw_gpio[i] != -EINVAL) {
234 gpio_unexport(evm_sw_gpio[i]);
235 gpio_free(evm_sw_gpio[i]);
236 evm_sw_gpio[i] = -EINVAL;
237 }
238 }
239 return 0;
240 }
241
242 static int evm_pcf_setup(struct i2c_client *client, int gpio,
243 unsigned int ngpio, void *c)
244 {
245 int status;
246
247 if (ngpio < 8)
248 return -EINVAL;
249
250 status = evm_sw_setup(client, gpio, 4, c);
251 if (status)
252 return status;
253
254 return evm_led_setup(client, gpio+4, 4, c);
255 }
256
257 static int evm_pcf_teardown(struct i2c_client *client, int gpio,
258 unsigned int ngpio, void *c)
259 {
260 BUG_ON(ngpio < 8);
261
262 evm_sw_teardown(client, gpio, 4, c);
263 evm_led_teardown(client, gpio+4, 4, c);
264
265 return 0;
266 }
267
268 static struct pcf857x_platform_data pcf_data = {
269 .gpio_base = DAVINCI_N_GPIO+1,
270 .setup = evm_pcf_setup,
271 .teardown = evm_pcf_teardown,
272 };
273
274 /* Most of this EEPROM is unused, but U-Boot uses some data:
275 * - 0x7f00, 6 bytes Ethernet Address
276 * - ... newer boards may have more
277 */
278
279 static struct at24_platform_data eeprom_info = {
280 .byte_len = (256*1024) / 8,
281 .page_size = 64,
282 .flags = AT24_FLAG_ADDR16,
283 .setup = davinci_get_mac_addr,
284 .context = (void *)0x7f00,
285 };
286
287 static u8 dm646x_iis_serializer_direction[] = {
288 TX_MODE, RX_MODE, INACTIVE_MODE, INACTIVE_MODE,
289 };
290
291 static u8 dm646x_dit_serializer_direction[] = {
292 TX_MODE,
293 };
294
295 static struct snd_platform_data dm646x_evm_snd_data[] = {
296 {
297 .tx_dma_offset = 0x400,
298 .rx_dma_offset = 0x400,
299 .op_mode = DAVINCI_MCASP_IIS_MODE,
300 .num_serializer = ARRAY_SIZE(dm646x_iis_serializer_direction),
301 .tdm_slots = 2,
302 .serial_dir = dm646x_iis_serializer_direction,
303 .eventq_no = EVENTQ_0,
304 },
305 {
306 .tx_dma_offset = 0x400,
307 .rx_dma_offset = 0,
308 .op_mode = DAVINCI_MCASP_DIT_MODE,
309 .num_serializer = ARRAY_SIZE(dm646x_dit_serializer_direction),
310 .tdm_slots = 32,
311 .serial_dir = dm646x_dit_serializer_direction,
312 .eventq_no = EVENTQ_0,
313 },
314 };
315
316 static struct i2c_client *cpld_client;
317
318 static int cpld_video_probe(struct i2c_client *client,
319 const struct i2c_device_id *id)
320 {
321 cpld_client = client;
322 return 0;
323 }
324
325 static int __devexit cpld_video_remove(struct i2c_client *client)
326 {
327 cpld_client = NULL;
328 return 0;
329 }
330
331 static const struct i2c_device_id cpld_video_id[] = {
332 { "cpld_video", 0 },
333 { }
334 };
335
336 static struct i2c_driver cpld_video_driver = {
337 .driver = {
338 .name = "cpld_video",
339 },
340 .probe = cpld_video_probe,
341 .remove = cpld_video_remove,
342 .id_table = cpld_video_id,
343 };
344
345 static void evm_init_cpld(void)
346 {
347 i2c_add_driver(&cpld_video_driver);
348 }
349
350 static struct i2c_board_info __initdata i2c_info[] = {
351 {
352 I2C_BOARD_INFO("24c256", 0x50),
353 .platform_data = &eeprom_info,
354 },
355 {
356 I2C_BOARD_INFO("pcf8574a", 0x38),
357 .platform_data = &pcf_data,
358 },
359 {
360 I2C_BOARD_INFO("cpld_reg0", 0x3a),
361 },
362 {
363 I2C_BOARD_INFO("tlv320aic33", 0x18),
364 },
365 {
366 I2C_BOARD_INFO("cpld_video", 0x3b),
367 },
368 };
369
370 static struct davinci_i2c_platform_data i2c_pdata = {
371 .bus_freq = 100 /* kHz */,
372 .bus_delay = 0 /* usec */,
373 };
374
375 static int set_vpif_clock(int mux_mode, int hd)
376 {
377 unsigned long flags;
378 unsigned int value;
379 int val = 0;
380 int err = 0;
381
382 if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg || !cpld_client)
383 return -ENXIO;
384
385 /* disable the clock */
386 spin_lock_irqsave(&vpif_reg_lock, flags);
387 value = __raw_readl(vpif_vsclkdis_reg);
388 value |= (VIDCH3CLK | VIDCH2CLK);
389 __raw_writel(value, vpif_vsclkdis_reg);
390 spin_unlock_irqrestore(&vpif_reg_lock, flags);
391
392 val = i2c_smbus_read_byte(cpld_client);
393 if (val < 0)
394 return val;
395
396 if (mux_mode == 1)
397 val &= ~0x40;
398 else
399 val |= 0x40;
400
401 err = i2c_smbus_write_byte(cpld_client, val);
402 if (err)
403 return err;
404
405 value = __raw_readl(vpif_vidclkctl_reg);
406 value &= ~(VCH2CLK_MASK);
407 value &= ~(VCH3CLK_MASK);
408
409 if (hd >= 1)
410 value |= (VCH2CLK_SYSCLK8 | VCH3CLK_SYSCLK8);
411 else
412 value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK);
413
414 __raw_writel(value, vpif_vidclkctl_reg);
415
416 spin_lock_irqsave(&vpif_reg_lock, flags);
417 value = __raw_readl(vpif_vsclkdis_reg);
418 /* enable the clock */
419 value &= ~(VIDCH3CLK | VIDCH2CLK);
420 __raw_writel(value, vpif_vsclkdis_reg);
421 spin_unlock_irqrestore(&vpif_reg_lock, flags);
422
423 return 0;
424 }
425
426 static struct vpif_subdev_info dm646x_vpif_subdev[] = {
427 {
428 .name = "adv7343",
429 .board_info = {
430 I2C_BOARD_INFO("adv7343", 0x2a),
431 },
432 },
433 {
434 .name = "ths7303",
435 .board_info = {
436 I2C_BOARD_INFO("ths7303", 0x2c),
437 },
438 },
439 };
440
441 static const char *output[] = {
442 "Composite",
443 "Component",
444 "S-Video",
445 };
446
447 static struct vpif_display_config dm646x_vpif_display_config = {
448 .set_clock = set_vpif_clock,
449 .subdevinfo = dm646x_vpif_subdev,
450 .subdev_count = ARRAY_SIZE(dm646x_vpif_subdev),
451 .output = output,
452 .output_count = ARRAY_SIZE(output),
453 .card_name = "DM646x EVM",
454 };
455
456 /**
457 * setup_vpif_input_path()
458 * @channel: channel id (0 - CH0, 1 - CH1)
459 * @sub_dev_name: ptr sub device name
460 *
461 * This will set vpif input to capture data from tvp514x or
462 * tvp7002.
463 */
464 static int setup_vpif_input_path(int channel, const char *sub_dev_name)
465 {
466 int err = 0;
467 int val;
468
469 /* for channel 1, we don't do anything */
470 if (channel != 0)
471 return 0;
472
473 if (!cpld_client)
474 return -ENXIO;
475
476 val = i2c_smbus_read_byte(cpld_client);
477 if (val < 0)
478 return val;
479
480 if (!strcmp(sub_dev_name, TVP5147_CH0) ||
481 !strcmp(sub_dev_name, TVP5147_CH1))
482 val &= TVP5147_INPUT;
483 else
484 val |= TVP7002_INPUT;
485
486 err = i2c_smbus_write_byte(cpld_client, val);
487 if (err)
488 return err;
489 return 0;
490 }
491
492 /**
493 * setup_vpif_input_channel_mode()
494 * @mux_mode: mux mode. 0 - 1 channel or (1) - 2 channel
495 *
496 * This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147)
497 */
498 static int setup_vpif_input_channel_mode(int mux_mode)
499 {
500 unsigned long flags;
501 int err = 0;
502 int val;
503 u32 value;
504
505 if (!vpif_vsclkdis_reg || !cpld_client)
506 return -ENXIO;
507
508 val = i2c_smbus_read_byte(cpld_client);
509 if (val < 0)
510 return val;
511
512 spin_lock_irqsave(&vpif_reg_lock, flags);
513 value = __raw_readl(vpif_vsclkdis_reg);
514 if (mux_mode) {
515 val &= VPIF_INPUT_TWO_CHANNEL;
516 value |= VIDCH1CLK;
517 } else {
518 val |= VPIF_INPUT_ONE_CHANNEL;
519 value &= ~VIDCH1CLK;
520 }
521 __raw_writel(value, vpif_vsclkdis_reg);
522 spin_unlock_irqrestore(&vpif_reg_lock, flags);
523
524 err = i2c_smbus_write_byte(cpld_client, val);
525 if (err)
526 return err;
527
528 return 0;
529 }
530
531 static struct tvp514x_platform_data tvp5146_pdata = {
532 .clk_polarity = 0,
533 .hs_polarity = 1,
534 .vs_polarity = 1
535 };
536
537 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
538
539 static struct vpif_subdev_info vpif_capture_sdev_info[] = {
540 {
541 .name = TVP5147_CH0,
542 .board_info = {
543 I2C_BOARD_INFO("tvp5146", 0x5d),
544 .platform_data = &tvp5146_pdata,
545 },
546 .input = INPUT_CVBS_VI2B,
547 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
548 .can_route = 1,
549 .vpif_if = {
550 .if_type = VPIF_IF_BT656,
551 .hd_pol = 1,
552 .vd_pol = 1,
553 .fid_pol = 0,
554 },
555 },
556 {
557 .name = TVP5147_CH1,
558 .board_info = {
559 I2C_BOARD_INFO("tvp5146", 0x5c),
560 .platform_data = &tvp5146_pdata,
561 },
562 .input = INPUT_SVIDEO_VI2C_VI1C,
563 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
564 .can_route = 1,
565 .vpif_if = {
566 .if_type = VPIF_IF_BT656,
567 .hd_pol = 1,
568 .vd_pol = 1,
569 .fid_pol = 0,
570 },
571 },
572 };
573
574 static const struct vpif_input dm6467_ch0_inputs[] = {
575 {
576 .input = {
577 .index = 0,
578 .name = "Composite",
579 .type = V4L2_INPUT_TYPE_CAMERA,
580 .std = TVP514X_STD_ALL,
581 },
582 .subdev_name = TVP5147_CH0,
583 },
584 };
585
586 static const struct vpif_input dm6467_ch1_inputs[] = {
587 {
588 .input = {
589 .index = 0,
590 .name = "S-Video",
591 .type = V4L2_INPUT_TYPE_CAMERA,
592 .std = TVP514X_STD_ALL,
593 },
594 .subdev_name = TVP5147_CH1,
595 },
596 };
597
598 static struct vpif_capture_config dm646x_vpif_capture_cfg = {
599 .setup_input_path = setup_vpif_input_path,
600 .setup_input_channel_mode = setup_vpif_input_channel_mode,
601 .subdev_info = vpif_capture_sdev_info,
602 .subdev_count = ARRAY_SIZE(vpif_capture_sdev_info),
603 .chan_config[0] = {
604 .inputs = dm6467_ch0_inputs,
605 .input_count = ARRAY_SIZE(dm6467_ch0_inputs),
606 },
607 .chan_config[1] = {
608 .inputs = dm6467_ch1_inputs,
609 .input_count = ARRAY_SIZE(dm6467_ch1_inputs),
610 },
611 };
612
613 static void __init evm_init_video(void)
614 {
615 vpif_vidclkctl_reg = ioremap(VIDCLKCTL_OFFSET, 4);
616 vpif_vsclkdis_reg = ioremap(VSCLKDIS_OFFSET, 4);
617 if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg) {
618 pr_err("Can't map VPIF VIDCLKCTL or VSCLKDIS registers\n");
619 return;
620 }
621 spin_lock_init(&vpif_reg_lock);
622
623 dm646x_setup_vpif(&dm646x_vpif_display_config,
624 &dm646x_vpif_capture_cfg);
625 }
626
627 static void __init evm_init_i2c(void)
628 {
629 davinci_init_i2c(&i2c_pdata);
630 i2c_add_driver(&dm6467evm_cpld_driver);
631 i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
632 evm_init_cpld();
633 evm_init_video();
634 }
635
636 static void __init davinci_map_io(void)
637 {
638 dm646x_init();
639 }
640
641 static __init void evm_init(void)
642 {
643 struct davinci_soc_info *soc_info = &davinci_soc_info;
644
645 evm_init_i2c();
646 davinci_serial_init(&uart_config);
647 dm646x_init_mcasp0(&dm646x_evm_snd_data[0]);
648 dm646x_init_mcasp1(&dm646x_evm_snd_data[1]);
649
650 if (HAS_ATA)
651 dm646x_init_ide();
652
653 soc_info->emac_pdata->phy_mask = DM646X_EVM_PHY_MASK;
654 soc_info->emac_pdata->mdio_max_freq = DM646X_EVM_MDIO_FREQUENCY;
655 }
656
657 static __init void davinci_dm646x_evm_irq_init(void)
658 {
659 davinci_irq_init();
660 }
661
662 MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM")
663 .phys_io = IO_PHYS,
664 .io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
665 .boot_params = (0x80000100),
666 .map_io = davinci_map_io,
667 .init_irq = davinci_dm646x_evm_irq_init,
668 .timer = &davinci_timer,
669 .init_machine = evm_init,
670 MACHINE_END
671
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