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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-davinci/board-dm644x-evm.c

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  1 /*
  2  * TI DaVinci EVM board support
  3  *
  4  * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
  5  *
  6  * 2007 (c) MontaVista Software, Inc. This file is licensed under
  7  * the terms of the GNU General Public License version 2. This program
  8  * is licensed "as is" without any warranty of any kind, whether express
  9  * or implied.
 10  */
 11 #include <linux/kernel.h>
 12 #include <linux/init.h>
 13 #include <linux/dma-mapping.h>
 14 #include <linux/platform_device.h>
 15 #include <linux/gpio.h>
 16 #include <linux/i2c.h>
 17 #include <linux/i2c/pcf857x.h>
 18 #include <linux/platform_data/at24.h>
 19 #include <linux/mtd/mtd.h>
 20 #include <linux/mtd/nand.h>
 21 #include <linux/mtd/partitions.h>
 22 #include <linux/mtd/physmap.h>
 23 #include <linux/phy.h>
 24 #include <linux/clk.h>
 25 #include <linux/videodev2.h>
 26 #include <linux/v4l2-dv-timings.h>
 27 #include <linux/export.h>
 28 
 29 #include <media/i2c/tvp514x.h>
 30 
 31 #include <asm/mach-types.h>
 32 #include <asm/mach/arch.h>
 33 
 34 #include <mach/common.h>
 35 #include <linux/platform_data/i2c-davinci.h>
 36 #include <mach/serial.h>
 37 #include <mach/mux.h>
 38 #include <linux/platform_data/mtd-davinci.h>
 39 #include <linux/platform_data/mmc-davinci.h>
 40 #include <linux/platform_data/usb-davinci.h>
 41 #include <linux/platform_data/mtd-davinci-aemif.h>
 42 
 43 #include "davinci.h"
 44 
 45 #define DM644X_EVM_PHY_ID               "davinci_mdio-0:01"
 46 #define LXT971_PHY_ID   (0x001378e2)
 47 #define LXT971_PHY_MASK (0xfffffff0)
 48 
 49 static struct mtd_partition davinci_evm_norflash_partitions[] = {
 50         /* bootloader (UBL, U-Boot, etc) in first 5 sectors */
 51         {
 52                 .name           = "bootloader",
 53                 .offset         = 0,
 54                 .size           = 5 * SZ_64K,
 55                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
 56         },
 57         /* bootloader params in the next 1 sectors */
 58         {
 59                 .name           = "params",
 60                 .offset         = MTDPART_OFS_APPEND,
 61                 .size           = SZ_64K,
 62                 .mask_flags     = 0,
 63         },
 64         /* kernel */
 65         {
 66                 .name           = "kernel",
 67                 .offset         = MTDPART_OFS_APPEND,
 68                 .size           = SZ_2M,
 69                 .mask_flags     = 0
 70         },
 71         /* file system */
 72         {
 73                 .name           = "filesystem",
 74                 .offset         = MTDPART_OFS_APPEND,
 75                 .size           = MTDPART_SIZ_FULL,
 76                 .mask_flags     = 0
 77         }
 78 };
 79 
 80 static struct physmap_flash_data davinci_evm_norflash_data = {
 81         .width          = 2,
 82         .parts          = davinci_evm_norflash_partitions,
 83         .nr_parts       = ARRAY_SIZE(davinci_evm_norflash_partitions),
 84 };
 85 
 86 /* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF
 87  * limits addresses to 16M, so using addresses past 16M will wrap */
 88 static struct resource davinci_evm_norflash_resource = {
 89         .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
 90         .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
 91         .flags          = IORESOURCE_MEM,
 92 };
 93 
 94 static struct platform_device davinci_evm_norflash_device = {
 95         .name           = "physmap-flash",
 96         .id             = 0,
 97         .dev            = {
 98                 .platform_data  = &davinci_evm_norflash_data,
 99         },
100         .num_resources  = 1,
101         .resource       = &davinci_evm_norflash_resource,
102 };
103 
104 /* DM644x EVM includes a 64 MByte small-page NAND flash (16K blocks).
105  * It may used instead of the (default) NOR chip to boot, using TI's
106  * tools to install the secondary boot loader (UBL) and U-Boot.
107  */
108 static struct mtd_partition davinci_evm_nandflash_partition[] = {
109         /* Bootloader layout depends on whose u-boot is installed, but we
110          * can hide all the details.
111          *  - block 0 for u-boot environment ... in mainline u-boot
112          *  - block 1 for UBL (plus up to four backup copies in blocks 2..5)
113          *  - blocks 6...? for u-boot
114          *  - blocks 16..23 for u-boot environment ... in TI's u-boot
115          */
116         {
117                 .name           = "bootloader",
118                 .offset         = 0,
119                 .size           = SZ_256K + SZ_128K,
120                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
121         },
122         /* Kernel */
123         {
124                 .name           = "kernel",
125                 .offset         = MTDPART_OFS_APPEND,
126                 .size           = SZ_4M,
127                 .mask_flags     = 0,
128         },
129         /* File system (older GIT kernels started this on the 5MB mark) */
130         {
131                 .name           = "filesystem",
132                 .offset         = MTDPART_OFS_APPEND,
133                 .size           = MTDPART_SIZ_FULL,
134                 .mask_flags     = 0,
135         }
136         /* A few blocks at end hold a flash BBT ... created by TI's CCS
137          * using flashwriter_nand.out, but ignored by TI's versions of
138          * Linux and u-boot.  We boot faster by using them.
139          */
140 };
141 
142 static struct davinci_aemif_timing davinci_evm_nandflash_timing = {
143         .wsetup         = 20,
144         .wstrobe        = 40,
145         .whold          = 20,
146         .rsetup         = 10,
147         .rstrobe        = 40,
148         .rhold          = 10,
149         .ta             = 40,
150 };
151 
152 static struct davinci_nand_pdata davinci_evm_nandflash_data = {
153         .parts          = davinci_evm_nandflash_partition,
154         .nr_parts       = ARRAY_SIZE(davinci_evm_nandflash_partition),
155         .ecc_mode       = NAND_ECC_HW,
156         .ecc_bits       = 1,
157         .bbt_options    = NAND_BBT_USE_FLASH,
158         .timing         = &davinci_evm_nandflash_timing,
159 };
160 
161 static struct resource davinci_evm_nandflash_resource[] = {
162         {
163                 .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
164                 .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
165                 .flags          = IORESOURCE_MEM,
166         }, {
167                 .start          = DM644X_ASYNC_EMIF_CONTROL_BASE,
168                 .end            = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
169                 .flags          = IORESOURCE_MEM,
170         },
171 };
172 
173 static struct platform_device davinci_evm_nandflash_device = {
174         .name           = "davinci_nand",
175         .id             = 0,
176         .dev            = {
177                 .platform_data  = &davinci_evm_nandflash_data,
178         },
179         .num_resources  = ARRAY_SIZE(davinci_evm_nandflash_resource),
180         .resource       = davinci_evm_nandflash_resource,
181 };
182 
183 static u64 davinci_fb_dma_mask = DMA_BIT_MASK(32);
184 
185 static struct platform_device davinci_fb_device = {
186         .name           = "davincifb",
187         .id             = -1,
188         .dev = {
189                 .dma_mask               = &davinci_fb_dma_mask,
190                 .coherent_dma_mask      = DMA_BIT_MASK(32),
191         },
192         .num_resources = 0,
193 };
194 
195 static struct tvp514x_platform_data dm644xevm_tvp5146_pdata = {
196         .clk_polarity = 0,
197         .hs_polarity = 1,
198         .vs_polarity = 1
199 };
200 
201 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
202 /* Inputs available at the TVP5146 */
203 static struct v4l2_input dm644xevm_tvp5146_inputs[] = {
204         {
205                 .index = 0,
206                 .name = "Composite",
207                 .type = V4L2_INPUT_TYPE_CAMERA,
208                 .std = TVP514X_STD_ALL,
209         },
210         {
211                 .index = 1,
212                 .name = "S-Video",
213                 .type = V4L2_INPUT_TYPE_CAMERA,
214                 .std = TVP514X_STD_ALL,
215         },
216 };
217 
218 /*
219  * this is the route info for connecting each input to decoder
220  * ouput that goes to vpfe. There is a one to one correspondence
221  * with tvp5146_inputs
222  */
223 static struct vpfe_route dm644xevm_tvp5146_routes[] = {
224         {
225                 .input = INPUT_CVBS_VI2B,
226                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
227         },
228         {
229                 .input = INPUT_SVIDEO_VI2C_VI1C,
230                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
231         },
232 };
233 
234 static struct vpfe_subdev_info dm644xevm_vpfe_sub_devs[] = {
235         {
236                 .name = "tvp5146",
237                 .grp_id = 0,
238                 .num_inputs = ARRAY_SIZE(dm644xevm_tvp5146_inputs),
239                 .inputs = dm644xevm_tvp5146_inputs,
240                 .routes = dm644xevm_tvp5146_routes,
241                 .can_route = 1,
242                 .ccdc_if_params = {
243                         .if_type = VPFE_BT656,
244                         .hdpol = VPFE_PINPOL_POSITIVE,
245                         .vdpol = VPFE_PINPOL_POSITIVE,
246                 },
247                 .board_info = {
248                         I2C_BOARD_INFO("tvp5146", 0x5d),
249                         .platform_data = &dm644xevm_tvp5146_pdata,
250                 },
251         },
252 };
253 
254 static struct vpfe_config dm644xevm_capture_cfg = {
255         .num_subdevs = ARRAY_SIZE(dm644xevm_vpfe_sub_devs),
256         .i2c_adapter_id = 1,
257         .sub_devs = dm644xevm_vpfe_sub_devs,
258         .card_name = "DM6446 EVM",
259         .ccdc = "DM6446 CCDC",
260 };
261 
262 static struct platform_device rtc_dev = {
263         .name           = "rtc_davinci_evm",
264         .id             = -1,
265 };
266 
267 /*----------------------------------------------------------------------*/
268 #ifdef CONFIG_I2C
269 /*
270  * I2C GPIO expanders
271  */
272 
273 #define PCF_Uxx_BASE(x) (DAVINCI_N_GPIO + ((x) * 8))
274 
275 
276 /* U2 -- LEDs */
277 
278 static struct gpio_led evm_leds[] = {
279         { .name = "DS8", .active_low = 1,
280                 .default_trigger = "heartbeat", },
281         { .name = "DS7", .active_low = 1, },
282         { .name = "DS6", .active_low = 1, },
283         { .name = "DS5", .active_low = 1, },
284         { .name = "DS4", .active_low = 1, },
285         { .name = "DS3", .active_low = 1, },
286         { .name = "DS2", .active_low = 1,
287                 .default_trigger = "mmc0", },
288         { .name = "DS1", .active_low = 1,
289                 .default_trigger = "disk-activity", },
290 };
291 
292 static const struct gpio_led_platform_data evm_led_data = {
293         .num_leds       = ARRAY_SIZE(evm_leds),
294         .leds           = evm_leds,
295 };
296 
297 static struct platform_device *evm_led_dev;
298 
299 static int
300 evm_led_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
301 {
302         struct gpio_led *leds = evm_leds;
303         int status;
304 
305         while (ngpio--) {
306                 leds->gpio = gpio++;
307                 leds++;
308         }
309 
310         /* what an extremely annoying way to be forced to handle
311          * device unregistration ...
312          */
313         evm_led_dev = platform_device_alloc("leds-gpio", 0);
314         platform_device_add_data(evm_led_dev,
315                         &evm_led_data, sizeof evm_led_data);
316 
317         evm_led_dev->dev.parent = &client->dev;
318         status = platform_device_add(evm_led_dev);
319         if (status < 0) {
320                 platform_device_put(evm_led_dev);
321                 evm_led_dev = NULL;
322         }
323         return status;
324 }
325 
326 static int
327 evm_led_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
328 {
329         if (evm_led_dev) {
330                 platform_device_unregister(evm_led_dev);
331                 evm_led_dev = NULL;
332         }
333         return 0;
334 }
335 
336 static struct pcf857x_platform_data pcf_data_u2 = {
337         .gpio_base      = PCF_Uxx_BASE(0),
338         .setup          = evm_led_setup,
339         .teardown       = evm_led_teardown,
340 };
341 
342 
343 /* U18 - A/V clock generator and user switch */
344 
345 static int sw_gpio;
346 
347 static ssize_t
348 sw_show(struct device *d, struct device_attribute *a, char *buf)
349 {
350         char *s = gpio_get_value_cansleep(sw_gpio) ? "on\n" : "off\n";
351 
352         strcpy(buf, s);
353         return strlen(s);
354 }
355 
356 static DEVICE_ATTR(user_sw, S_IRUGO, sw_show, NULL);
357 
358 static int
359 evm_u18_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
360 {
361         int     status;
362 
363         /* export dip switch option */
364         sw_gpio = gpio + 7;
365         status = gpio_request(sw_gpio, "user_sw");
366         if (status == 0)
367                 status = gpio_direction_input(sw_gpio);
368         if (status == 0)
369                 status = device_create_file(&client->dev, &dev_attr_user_sw);
370         else
371                 gpio_free(sw_gpio);
372         if (status != 0)
373                 sw_gpio = -EINVAL;
374 
375         /* audio PLL:  48 kHz (vs 44.1 or 32), single rate (vs double) */
376         gpio_request(gpio + 3, "pll_fs2");
377         gpio_direction_output(gpio + 3, 0);
378 
379         gpio_request(gpio + 2, "pll_fs1");
380         gpio_direction_output(gpio + 2, 0);
381 
382         gpio_request(gpio + 1, "pll_sr");
383         gpio_direction_output(gpio + 1, 0);
384 
385         return 0;
386 }
387 
388 static int
389 evm_u18_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
390 {
391         gpio_free(gpio + 1);
392         gpio_free(gpio + 2);
393         gpio_free(gpio + 3);
394 
395         if (sw_gpio > 0) {
396                 device_remove_file(&client->dev, &dev_attr_user_sw);
397                 gpio_free(sw_gpio);
398         }
399         return 0;
400 }
401 
402 static struct pcf857x_platform_data pcf_data_u18 = {
403         .gpio_base      = PCF_Uxx_BASE(1),
404         .n_latch        = (1 << 3) | (1 << 2) | (1 << 1),
405         .setup          = evm_u18_setup,
406         .teardown       = evm_u18_teardown,
407 };
408 
409 
410 /* U35 - various I/O signals used to manage USB, CF, ATA, etc */
411 
412 static int
413 evm_u35_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
414 {
415         /* p0 = nDRV_VBUS (initial:  don't supply it) */
416         gpio_request(gpio + 0, "nDRV_VBUS");
417         gpio_direction_output(gpio + 0, 1);
418 
419         /* p1 = VDDIMX_EN */
420         gpio_request(gpio + 1, "VDDIMX_EN");
421         gpio_direction_output(gpio + 1, 1);
422 
423         /* p2 = VLYNQ_EN */
424         gpio_request(gpio + 2, "VLYNQ_EN");
425         gpio_direction_output(gpio + 2, 1);
426 
427         /* p3 = n3V3_CF_RESET (initial: stay in reset) */
428         gpio_request(gpio + 3, "nCF_RESET");
429         gpio_direction_output(gpio + 3, 0);
430 
431         /* (p4 unused) */
432 
433         /* p5 = 1V8_WLAN_RESET (initial: stay in reset) */
434         gpio_request(gpio + 5, "WLAN_RESET");
435         gpio_direction_output(gpio + 5, 1);
436 
437         /* p6 = nATA_SEL (initial: select) */
438         gpio_request(gpio + 6, "nATA_SEL");
439         gpio_direction_output(gpio + 6, 0);
440 
441         /* p7 = nCF_SEL (initial: deselect) */
442         gpio_request(gpio + 7, "nCF_SEL");
443         gpio_direction_output(gpio + 7, 1);
444 
445         return 0;
446 }
447 
448 static int
449 evm_u35_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
450 {
451         gpio_free(gpio + 7);
452         gpio_free(gpio + 6);
453         gpio_free(gpio + 5);
454         gpio_free(gpio + 3);
455         gpio_free(gpio + 2);
456         gpio_free(gpio + 1);
457         gpio_free(gpio + 0);
458         return 0;
459 }
460 
461 static struct pcf857x_platform_data pcf_data_u35 = {
462         .gpio_base      = PCF_Uxx_BASE(2),
463         .setup          = evm_u35_setup,
464         .teardown       = evm_u35_teardown,
465 };
466 
467 /*----------------------------------------------------------------------*/
468 
469 /* Most of this EEPROM is unused, but U-Boot uses some data:
470  *  - 0x7f00, 6 bytes Ethernet Address
471  *  - 0x0039, 1 byte NTSC vs PAL (bit 0x80 == PAL)
472  *  - ... newer boards may have more
473  */
474 
475 static struct at24_platform_data eeprom_info = {
476         .byte_len       = (256*1024) / 8,
477         .page_size      = 64,
478         .flags          = AT24_FLAG_ADDR16,
479         .setup          = davinci_get_mac_addr,
480         .context        = (void *)0x7f00,
481 };
482 
483 /*
484  * MSP430 supports RTC, card detection, input from IR remote, and
485  * a bit more.  It triggers interrupts on GPIO(7) from pressing
486  * buttons on the IR remote, and for card detect switches.
487  */
488 static struct i2c_client *dm6446evm_msp;
489 
490 static int dm6446evm_msp_probe(struct i2c_client *client,
491                 const struct i2c_device_id *id)
492 {
493         dm6446evm_msp = client;
494         return 0;
495 }
496 
497 static int dm6446evm_msp_remove(struct i2c_client *client)
498 {
499         dm6446evm_msp = NULL;
500         return 0;
501 }
502 
503 static const struct i2c_device_id dm6446evm_msp_ids[] = {
504         { "dm6446evm_msp", 0, },
505         { /* end of list */ },
506 };
507 
508 static struct i2c_driver dm6446evm_msp_driver = {
509         .driver.name    = "dm6446evm_msp",
510         .id_table       = dm6446evm_msp_ids,
511         .probe          = dm6446evm_msp_probe,
512         .remove         = dm6446evm_msp_remove,
513 };
514 
515 static int dm6444evm_msp430_get_pins(void)
516 {
517         static const char txbuf[2] = { 2, 4, };
518         char buf[4];
519         struct i2c_msg msg[2] = {
520                 {
521                         .flags = 0,
522                         .len = 2,
523                         .buf = (void __force *)txbuf,
524                 },
525                 {
526                         .flags = I2C_M_RD,
527                         .len = 4,
528                         .buf = buf,
529                 },
530         };
531         int status;
532 
533         if (!dm6446evm_msp)
534                 return -ENXIO;
535 
536         msg[0].addr = dm6446evm_msp->addr;
537         msg[1].addr = dm6446evm_msp->addr;
538 
539         /* Command 4 == get input state, returns port 2 and port3 data
540          *   S Addr W [A] len=2 [A] cmd=4 [A]
541          *   RS Addr R [A] [len=4] A [cmd=4] A [port2] A [port3] N P
542          */
543         status = i2c_transfer(dm6446evm_msp->adapter, msg, 2);
544         if (status < 0)
545                 return status;
546 
547         dev_dbg(&dm6446evm_msp->dev, "PINS: %4ph\n", buf);
548 
549         return (buf[3] << 8) | buf[2];
550 }
551 
552 static int dm6444evm_mmc_get_cd(int module)
553 {
554         int status = dm6444evm_msp430_get_pins();
555 
556         return (status < 0) ? status : !(status & BIT(1));
557 }
558 
559 static int dm6444evm_mmc_get_ro(int module)
560 {
561         int status = dm6444evm_msp430_get_pins();
562 
563         return (status < 0) ? status : status & BIT(6 + 8);
564 }
565 
566 static struct davinci_mmc_config dm6446evm_mmc_config = {
567         .get_cd         = dm6444evm_mmc_get_cd,
568         .get_ro         = dm6444evm_mmc_get_ro,
569         .wires          = 4,
570 };
571 
572 static struct i2c_board_info __initdata i2c_info[] =  {
573         {
574                 I2C_BOARD_INFO("dm6446evm_msp", 0x23),
575         },
576         {
577                 I2C_BOARD_INFO("pcf8574", 0x38),
578                 .platform_data  = &pcf_data_u2,
579         },
580         {
581                 I2C_BOARD_INFO("pcf8574", 0x39),
582                 .platform_data  = &pcf_data_u18,
583         },
584         {
585                 I2C_BOARD_INFO("pcf8574", 0x3a),
586                 .platform_data  = &pcf_data_u35,
587         },
588         {
589                 I2C_BOARD_INFO("24c256", 0x50),
590                 .platform_data  = &eeprom_info,
591         },
592         {
593                 I2C_BOARD_INFO("tlv320aic33", 0x1b),
594         },
595 };
596 
597 /* The msp430 uses a slow bitbanged I2C implementation (ergo 20 KHz),
598  * which requires 100 usec of idle bus after i2c writes sent to it.
599  */
600 static struct davinci_i2c_platform_data i2c_pdata = {
601         .bus_freq       = 20 /* kHz */,
602         .bus_delay      = 100 /* usec */,
603         .sda_pin        = 44,
604         .scl_pin        = 43,
605 };
606 
607 static void __init evm_init_i2c(void)
608 {
609         davinci_init_i2c(&i2c_pdata);
610         i2c_add_driver(&dm6446evm_msp_driver);
611         i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
612 }
613 #endif
614 
615 #define VENC_STD_ALL    (V4L2_STD_NTSC | V4L2_STD_PAL)
616 
617 /* venc standard timings */
618 static struct vpbe_enc_mode_info dm644xevm_enc_std_timing[] = {
619         {
620                 .name           = "ntsc",
621                 .timings_type   = VPBE_ENC_STD,
622                 .std_id         = V4L2_STD_NTSC,
623                 .interlaced     = 1,
624                 .xres           = 720,
625                 .yres           = 480,
626                 .aspect         = {11, 10},
627                 .fps            = {30000, 1001},
628                 .left_margin    = 0x79,
629                 .upper_margin   = 0x10,
630         },
631         {
632                 .name           = "pal",
633                 .timings_type   = VPBE_ENC_STD,
634                 .std_id         = V4L2_STD_PAL,
635                 .interlaced     = 1,
636                 .xres           = 720,
637                 .yres           = 576,
638                 .aspect         = {54, 59},
639                 .fps            = {25, 1},
640                 .left_margin    = 0x7e,
641                 .upper_margin   = 0x16,
642         },
643 };
644 
645 /* venc dv preset timings */
646 static struct vpbe_enc_mode_info dm644xevm_enc_preset_timing[] = {
647         {
648                 .name           = "480p59_94",
649                 .timings_type   = VPBE_ENC_DV_TIMINGS,
650                 .dv_timings     = V4L2_DV_BT_CEA_720X480P59_94,
651                 .interlaced     = 0,
652                 .xres           = 720,
653                 .yres           = 480,
654                 .aspect         = {1, 1},
655                 .fps            = {5994, 100},
656                 .left_margin    = 0x80,
657                 .upper_margin   = 0x20,
658         },
659         {
660                 .name           = "576p50",
661                 .timings_type   = VPBE_ENC_DV_TIMINGS,
662                 .dv_timings     = V4L2_DV_BT_CEA_720X576P50,
663                 .interlaced     = 0,
664                 .xres           = 720,
665                 .yres           = 576,
666                 .aspect         = {1, 1},
667                 .fps            = {50, 1},
668                 .left_margin    = 0x7e,
669                 .upper_margin   = 0x30,
670         },
671 };
672 
673 /*
674  * The outputs available from VPBE + encoders. Keep the order same
675  * as that of encoders. First those from venc followed by that from
676  * encoders. Index in the output refers to index on a particular encoder.
677  * Driver uses this index to pass it to encoder when it supports more
678  * than one output. Userspace applications use index of the array to
679  * set an output.
680  */
681 static struct vpbe_output dm644xevm_vpbe_outputs[] = {
682         {
683                 .output         = {
684                         .index          = 0,
685                         .name           = "Composite",
686                         .type           = V4L2_OUTPUT_TYPE_ANALOG,
687                         .std            = VENC_STD_ALL,
688                         .capabilities   = V4L2_OUT_CAP_STD,
689                 },
690                 .subdev_name    = DM644X_VPBE_VENC_SUBDEV_NAME,
691                 .default_mode   = "ntsc",
692                 .num_modes      = ARRAY_SIZE(dm644xevm_enc_std_timing),
693                 .modes          = dm644xevm_enc_std_timing,
694         },
695         {
696                 .output         = {
697                         .index          = 1,
698                         .name           = "Component",
699                         .type           = V4L2_OUTPUT_TYPE_ANALOG,
700                         .capabilities   = V4L2_OUT_CAP_DV_TIMINGS,
701                 },
702                 .subdev_name    = DM644X_VPBE_VENC_SUBDEV_NAME,
703                 .default_mode   = "480p59_94",
704                 .num_modes      = ARRAY_SIZE(dm644xevm_enc_preset_timing),
705                 .modes          = dm644xevm_enc_preset_timing,
706         },
707 };
708 
709 static struct vpbe_config dm644xevm_display_cfg = {
710         .module_name    = "dm644x-vpbe-display",
711         .i2c_adapter_id = 1,
712         .osd            = {
713                 .module_name    = DM644X_VPBE_OSD_SUBDEV_NAME,
714         },
715         .venc           = {
716                 .module_name    = DM644X_VPBE_VENC_SUBDEV_NAME,
717         },
718         .num_outputs    = ARRAY_SIZE(dm644xevm_vpbe_outputs),
719         .outputs        = dm644xevm_vpbe_outputs,
720 };
721 
722 static struct platform_device *davinci_evm_devices[] __initdata = {
723         &davinci_fb_device,
724         &rtc_dev,
725 };
726 
727 static void __init
728 davinci_evm_map_io(void)
729 {
730         dm644x_init();
731 }
732 
733 static int davinci_phy_fixup(struct phy_device *phydev)
734 {
735         unsigned int control;
736         /* CRITICAL: Fix for increasing PHY signal drive strength for
737          * TX lockup issue. On DaVinci EVM, the Intel LXT971 PHY
738          * signal strength was low causing  TX to fail randomly. The
739          * fix is to Set bit 11 (Increased MII drive strength) of PHY
740          * register 26 (Digital Config register) on this phy. */
741         control = phy_read(phydev, 26);
742         phy_write(phydev, 26, (control | 0x800));
743         return 0;
744 }
745 
746 #define HAS_ATA         IS_ENABLED(CONFIG_BLK_DEV_PALMCHIP_BK3710)
747 
748 #define HAS_NOR         IS_ENABLED(CONFIG_MTD_PHYSMAP)
749 
750 #define HAS_NAND        IS_ENABLED(CONFIG_MTD_NAND_DAVINCI)
751 
752 static __init void davinci_evm_init(void)
753 {
754         int ret;
755         struct clk *aemif_clk;
756         struct davinci_soc_info *soc_info = &davinci_soc_info;
757 
758         ret = dm644x_gpio_register();
759         if (ret)
760                 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
761 
762         aemif_clk = clk_get(NULL, "aemif");
763         clk_prepare_enable(aemif_clk);
764 
765         if (HAS_ATA) {
766                 if (HAS_NAND || HAS_NOR)
767                         pr_warn("WARNING: both IDE and Flash are enabled, but they share AEMIF pins\n"
768                                 "\tDisable IDE for NAND/NOR support\n");
769                 davinci_init_ide();
770         } else if (HAS_NAND || HAS_NOR) {
771                 davinci_cfg_reg(DM644X_HPIEN_DISABLE);
772                 davinci_cfg_reg(DM644X_ATAEN_DISABLE);
773 
774                 /* only one device will be jumpered and detected */
775                 if (HAS_NAND) {
776                         platform_device_register(&davinci_evm_nandflash_device);
777 
778                         if (davinci_aemif_setup(&davinci_evm_nandflash_device))
779                                 pr_warn("%s: Cannot configure AEMIF\n",
780                                         __func__);
781 
782 #ifdef CONFIG_I2C
783                         evm_leds[7].default_trigger = "nand-disk";
784 #endif
785                         if (HAS_NOR)
786                                 pr_warn("WARNING: both NAND and NOR flash are enabled; disable one of them.\n");
787                 } else if (HAS_NOR)
788                         platform_device_register(&davinci_evm_norflash_device);
789         }
790 
791         platform_add_devices(davinci_evm_devices,
792                              ARRAY_SIZE(davinci_evm_devices));
793 #ifdef CONFIG_I2C
794         evm_init_i2c();
795         davinci_setup_mmc(0, &dm6446evm_mmc_config);
796 #endif
797         dm644x_init_video(&dm644xevm_capture_cfg, &dm644xevm_display_cfg);
798 
799         davinci_serial_init(dm644x_serial_device);
800         dm644x_init_asp();
801 
802         /* irlml6401 switches over 1A, in under 8 msec */
803         davinci_setup_usb(1000, 8);
804 
805         if (IS_BUILTIN(CONFIG_PHYLIB)) {
806                 soc_info->emac_pdata->phy_id = DM644X_EVM_PHY_ID;
807                 /* Register the fixup for PHY on DaVinci */
808                 phy_register_fixup_for_uid(LXT971_PHY_ID, LXT971_PHY_MASK,
809                                                 davinci_phy_fixup);
810         }
811 }
812 
813 MACHINE_START(DAVINCI_EVM, "DaVinci DM644x EVM")
814         /* Maintainer: MontaVista Software <source@mvista.com> */
815         .atag_offset  = 0x100,
816         .map_io       = davinci_evm_map_io,
817         .init_irq     = davinci_irq_init,
818         .init_time      = davinci_timer_init,
819         .init_machine = davinci_evm_init,
820         .init_late      = davinci_init_late,
821         .dma_zone_size  = SZ_128M,
822         .restart        = davinci_restart,
823 MACHINE_END
824 

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