1 /*
2 * TI DaVinci DM365 EVM board support
3 *
4 * Copyright (C) 2009 Texas Instruments Incorporated
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation version 2.
9 *
10 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
11 * kind, whether express or implied; without even the implied warranty
12 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/err.h>
18 #include <linux/i2c.h>
19 #include <linux/io.h>
20 #include <linux/clk.h>
21 #include <linux/platform_data/at24.h>
22 #include <linux/leds.h>
23 #include <linux/mtd/mtd.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/slab.h>
26 #include <linux/mtd/rawnand.h>
27 #include <linux/input.h>
28 #include <linux/spi/spi.h>
29 #include <linux/spi/eeprom.h>
30 #include <linux/v4l2-dv-timings.h>
31
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34
35 #include <mach/mux.h>
36 #include <mach/common.h>
37 #include <linux/platform_data/i2c-davinci.h>
38 #include <mach/serial.h>
39 #include <linux/platform_data/mmc-davinci.h>
40 #include <linux/platform_data/mtd-davinci.h>
41 #include <linux/platform_data/keyscan-davinci.h>
42
43 #include <media/i2c/ths7303.h>
44 #include <media/i2c/tvp514x.h>
45
46 #include "davinci.h"
47
have_imager(void)48 static inline int have_imager(void)
49 {
50 /* REVISIT when it's supported, trigger via Kconfig */
51 return 0;
52 }
53
have_tvp7002(void)54 static inline int have_tvp7002(void)
55 {
56 /* REVISIT when it's supported, trigger via Kconfig */
57 return 0;
58 }
59
60 #define DM365_EVM_PHY_ID "davinci_mdio-0:01"
61 /*
62 * A MAX-II CPLD is used for various board control functions.
63 */
64 #define CPLD_OFFSET(a13a8,a2a1) (((a13a8) << 10) + ((a2a1) << 3))
65
66 #define CPLD_VERSION CPLD_OFFSET(0,0) /* r/o */
67 #define CPLD_TEST CPLD_OFFSET(0,1)
68 #define CPLD_LEDS CPLD_OFFSET(0,2)
69 #define CPLD_MUX CPLD_OFFSET(0,3)
70 #define CPLD_SWITCH CPLD_OFFSET(1,0) /* r/o */
71 #define CPLD_POWER CPLD_OFFSET(1,1)
72 #define CPLD_VIDEO CPLD_OFFSET(1,2)
73 #define CPLD_CARDSTAT CPLD_OFFSET(1,3) /* r/o */
74
75 #define CPLD_DILC_OUT CPLD_OFFSET(2,0)
76 #define CPLD_DILC_IN CPLD_OFFSET(2,1) /* r/o */
77
78 #define CPLD_IMG_DIR0 CPLD_OFFSET(2,2)
79 #define CPLD_IMG_MUX0 CPLD_OFFSET(2,3)
80 #define CPLD_IMG_MUX1 CPLD_OFFSET(3,0)
81 #define CPLD_IMG_DIR1 CPLD_OFFSET(3,1)
82 #define CPLD_IMG_MUX2 CPLD_OFFSET(3,2)
83 #define CPLD_IMG_MUX3 CPLD_OFFSET(3,3)
84 #define CPLD_IMG_DIR2 CPLD_OFFSET(4,0)
85 #define CPLD_IMG_MUX4 CPLD_OFFSET(4,1)
86 #define CPLD_IMG_MUX5 CPLD_OFFSET(4,2)
87
88 #define CPLD_RESETS CPLD_OFFSET(4,3)
89
90 #define CPLD_CCD_DIR1 CPLD_OFFSET(0x3e,0)
91 #define CPLD_CCD_IO1 CPLD_OFFSET(0x3e,1)
92 #define CPLD_CCD_DIR2 CPLD_OFFSET(0x3e,2)
93 #define CPLD_CCD_IO2 CPLD_OFFSET(0x3e,3)
94 #define CPLD_CCD_DIR3 CPLD_OFFSET(0x3f,0)
95 #define CPLD_CCD_IO3 CPLD_OFFSET(0x3f,1)
96
97 static void __iomem *cpld;
98
99
100 /* NOTE: this is geared for the standard config, with a socketed
101 * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors. If you
102 * swap chips with a different block size, partitioning will
103 * need to be changed. This NAND chip MT29F16G08FAA is the default
104 * NAND shipped with the Spectrum Digital DM365 EVM
105 */
106 #define NAND_BLOCK_SIZE SZ_128K
107
108 static struct mtd_partition davinci_nand_partitions[] = {
109 {
110 /* UBL (a few copies) plus U-Boot */
111 .name = "bootloader",
112 .offset = 0,
113 .size = 30 * NAND_BLOCK_SIZE,
114 .mask_flags = MTD_WRITEABLE, /* force read-only */
115 }, {
116 /* U-Boot environment */
117 .name = "params",
118 .offset = MTDPART_OFS_APPEND,
119 .size = 2 * NAND_BLOCK_SIZE,
120 .mask_flags = 0,
121 }, {
122 .name = "kernel",
123 .offset = MTDPART_OFS_APPEND,
124 .size = SZ_4M,
125 .mask_flags = 0,
126 }, {
127 .name = "filesystem1",
128 .offset = MTDPART_OFS_APPEND,
129 .size = SZ_512M,
130 .mask_flags = 0,
131 }, {
132 .name = "filesystem2",
133 .offset = MTDPART_OFS_APPEND,
134 .size = MTDPART_SIZ_FULL,
135 .mask_flags = 0,
136 }
137 /* two blocks with bad block table (and mirror) at the end */
138 };
139
140 static struct davinci_nand_pdata davinci_nand_data = {
141 .mask_chipsel = BIT(14),
142 .parts = davinci_nand_partitions,
143 .nr_parts = ARRAY_SIZE(davinci_nand_partitions),
144 .ecc_mode = NAND_ECC_HW,
145 .bbt_options = NAND_BBT_USE_FLASH,
146 .ecc_bits = 4,
147 };
148
149 static struct resource davinci_nand_resources[] = {
150 {
151 .start = DM365_ASYNC_EMIF_DATA_CE0_BASE,
152 .end = DM365_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
153 .flags = IORESOURCE_MEM,
154 }, {
155 .start = DM365_ASYNC_EMIF_CONTROL_BASE,
156 .end = DM365_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
157 .flags = IORESOURCE_MEM,
158 },
159 };
160
161 static struct platform_device davinci_nand_device = {
162 .name = "davinci_nand",
163 .id = 0,
164 .num_resources = ARRAY_SIZE(davinci_nand_resources),
165 .resource = davinci_nand_resources,
166 .dev = {
167 .platform_data = &davinci_nand_data,
168 },
169 };
170
171 static struct at24_platform_data eeprom_info = {
172 .byte_len = (256*1024) / 8,
173 .page_size = 64,
174 .flags = AT24_FLAG_ADDR16,
175 .setup = davinci_get_mac_addr,
176 .context = (void *)0x7f00,
177 };
178
179 static struct i2c_board_info i2c_info[] = {
180 {
181 I2C_BOARD_INFO("24c256", 0x50),
182 .platform_data = &eeprom_info,
183 },
184 {
185 I2C_BOARD_INFO("tlv320aic3x", 0x18),
186 },
187 };
188
189 static struct davinci_i2c_platform_data i2c_pdata = {
190 .bus_freq = 400 /* kHz */,
191 .bus_delay = 0 /* usec */,
192 };
193
dm365evm_keyscan_enable(struct device * dev)194 static int dm365evm_keyscan_enable(struct device *dev)
195 {
196 return davinci_cfg_reg(DM365_KEYSCAN);
197 }
198
199 static unsigned short dm365evm_keymap[] = {
200 KEY_KP2,
201 KEY_LEFT,
202 KEY_EXIT,
203 KEY_DOWN,
204 KEY_ENTER,
205 KEY_UP,
206 KEY_KP1,
207 KEY_RIGHT,
208 KEY_MENU,
209 KEY_RECORD,
210 KEY_REWIND,
211 KEY_KPMINUS,
212 KEY_STOP,
213 KEY_FASTFORWARD,
214 KEY_KPPLUS,
215 KEY_PLAYPAUSE,
216 0
217 };
218
219 static struct davinci_ks_platform_data dm365evm_ks_data = {
220 .device_enable = dm365evm_keyscan_enable,
221 .keymap = dm365evm_keymap,
222 .keymapsize = ARRAY_SIZE(dm365evm_keymap),
223 .rep = 1,
224 /* Scan period = strobe + interval */
225 .strobe = 0x5,
226 .interval = 0x2,
227 .matrix_type = DAVINCI_KEYSCAN_MATRIX_4X4,
228 };
229
cpld_mmc_get_cd(int module)230 static int cpld_mmc_get_cd(int module)
231 {
232 if (!cpld)
233 return -ENXIO;
234
235 /* low == card present */
236 return !(__raw_readb(cpld + CPLD_CARDSTAT) & BIT(module ? 4 : 0));
237 }
238
cpld_mmc_get_ro(int module)239 static int cpld_mmc_get_ro(int module)
240 {
241 if (!cpld)
242 return -ENXIO;
243
244 /* high == card's write protect switch active */
245 return !!(__raw_readb(cpld + CPLD_CARDSTAT) & BIT(module ? 5 : 1));
246 }
247
248 static struct davinci_mmc_config dm365evm_mmc_config = {
249 .get_cd = cpld_mmc_get_cd,
250 .get_ro = cpld_mmc_get_ro,
251 .wires = 4,
252 .max_freq = 50000000,
253 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
254 };
255
dm365evm_emac_configure(void)256 static void dm365evm_emac_configure(void)
257 {
258 /*
259 * EMAC pins are multiplexed with GPIO and UART
260 * Further details are available at the DM365 ARM
261 * Subsystem Users Guide(sprufg5.pdf) pages 125 - 127
262 */
263 davinci_cfg_reg(DM365_EMAC_TX_EN);
264 davinci_cfg_reg(DM365_EMAC_TX_CLK);
265 davinci_cfg_reg(DM365_EMAC_COL);
266 davinci_cfg_reg(DM365_EMAC_TXD3);
267 davinci_cfg_reg(DM365_EMAC_TXD2);
268 davinci_cfg_reg(DM365_EMAC_TXD1);
269 davinci_cfg_reg(DM365_EMAC_TXD0);
270 davinci_cfg_reg(DM365_EMAC_RXD3);
271 davinci_cfg_reg(DM365_EMAC_RXD2);
272 davinci_cfg_reg(DM365_EMAC_RXD1);
273 davinci_cfg_reg(DM365_EMAC_RXD0);
274 davinci_cfg_reg(DM365_EMAC_RX_CLK);
275 davinci_cfg_reg(DM365_EMAC_RX_DV);
276 davinci_cfg_reg(DM365_EMAC_RX_ER);
277 davinci_cfg_reg(DM365_EMAC_CRS);
278 davinci_cfg_reg(DM365_EMAC_MDIO);
279 davinci_cfg_reg(DM365_EMAC_MDCLK);
280
281 /*
282 * EMAC interrupts are multiplexed with GPIO interrupts
283 * Details are available at the DM365 ARM
284 * Subsystem Users Guide(sprufg5.pdf) pages 133 - 134
285 */
286 davinci_cfg_reg(DM365_INT_EMAC_RXTHRESH);
287 davinci_cfg_reg(DM365_INT_EMAC_RXPULSE);
288 davinci_cfg_reg(DM365_INT_EMAC_TXPULSE);
289 davinci_cfg_reg(DM365_INT_EMAC_MISCPULSE);
290 }
291
dm365evm_mmc_configure(void)292 static void dm365evm_mmc_configure(void)
293 {
294 /*
295 * MMC/SD pins are multiplexed with GPIO and EMIF
296 * Further details are available at the DM365 ARM
297 * Subsystem Users Guide(sprufg5.pdf) pages 118, 128 - 131
298 */
299 davinci_cfg_reg(DM365_SD1_CLK);
300 davinci_cfg_reg(DM365_SD1_CMD);
301 davinci_cfg_reg(DM365_SD1_DATA3);
302 davinci_cfg_reg(DM365_SD1_DATA2);
303 davinci_cfg_reg(DM365_SD1_DATA1);
304 davinci_cfg_reg(DM365_SD1_DATA0);
305 }
306
307 static struct tvp514x_platform_data tvp5146_pdata = {
308 .clk_polarity = 0,
309 .hs_polarity = 1,
310 .vs_polarity = 1
311 };
312
313 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
314 /* Inputs available at the TVP5146 */
315 static struct v4l2_input tvp5146_inputs[] = {
316 {
317 .index = 0,
318 .name = "Composite",
319 .type = V4L2_INPUT_TYPE_CAMERA,
320 .std = TVP514X_STD_ALL,
321 },
322 {
323 .index = 1,
324 .name = "S-Video",
325 .type = V4L2_INPUT_TYPE_CAMERA,
326 .std = TVP514X_STD_ALL,
327 },
328 };
329
330 /*
331 * this is the route info for connecting each input to decoder
332 * ouput that goes to vpfe. There is a one to one correspondence
333 * with tvp5146_inputs
334 */
335 static struct vpfe_route tvp5146_routes[] = {
336 {
337 .input = INPUT_CVBS_VI2B,
338 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
339 },
340 {
341 .input = INPUT_SVIDEO_VI2C_VI1C,
342 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
343 },
344 };
345
346 static struct vpfe_subdev_info vpfe_sub_devs[] = {
347 {
348 .name = "tvp5146",
349 .grp_id = 0,
350 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
351 .inputs = tvp5146_inputs,
352 .routes = tvp5146_routes,
353 .can_route = 1,
354 .ccdc_if_params = {
355 .if_type = VPFE_BT656,
356 .hdpol = VPFE_PINPOL_POSITIVE,
357 .vdpol = VPFE_PINPOL_POSITIVE,
358 },
359 .board_info = {
360 I2C_BOARD_INFO("tvp5146", 0x5d),
361 .platform_data = &tvp5146_pdata,
362 },
363 },
364 };
365
366 static struct vpfe_config vpfe_cfg = {
367 .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
368 .sub_devs = vpfe_sub_devs,
369 .i2c_adapter_id = 1,
370 .card_name = "DM365 EVM",
371 .ccdc = "ISIF",
372 };
373
374 /* venc standards timings */
375 static struct vpbe_enc_mode_info dm365evm_enc_std_timing[] = {
376 {
377 .name = "ntsc",
378 .timings_type = VPBE_ENC_STD,
379 .std_id = V4L2_STD_NTSC,
380 .interlaced = 1,
381 .xres = 720,
382 .yres = 480,
383 .aspect = {11, 10},
384 .fps = {30000, 1001},
385 .left_margin = 0x79,
386 .upper_margin = 0x10,
387 },
388 {
389 .name = "pal",
390 .timings_type = VPBE_ENC_STD,
391 .std_id = V4L2_STD_PAL,
392 .interlaced = 1,
393 .xres = 720,
394 .yres = 576,
395 .aspect = {54, 59},
396 .fps = {25, 1},
397 .left_margin = 0x7E,
398 .upper_margin = 0x16,
399 },
400 };
401
402 /* venc dv timings */
403 static struct vpbe_enc_mode_info dm365evm_enc_preset_timing[] = {
404 {
405 .name = "480p59_94",
406 .timings_type = VPBE_ENC_DV_TIMINGS,
407 .dv_timings = V4L2_DV_BT_CEA_720X480P59_94,
408 .interlaced = 0,
409 .xres = 720,
410 .yres = 480,
411 .aspect = {1, 1},
412 .fps = {5994, 100},
413 .left_margin = 0x8F,
414 .upper_margin = 0x2D,
415 },
416 {
417 .name = "576p50",
418 .timings_type = VPBE_ENC_DV_TIMINGS,
419 .dv_timings = V4L2_DV_BT_CEA_720X576P50,
420 .interlaced = 0,
421 .xres = 720,
422 .yres = 576,
423 .aspect = {1, 1},
424 .fps = {50, 1},
425 .left_margin = 0x8C,
426 .upper_margin = 0x36,
427 },
428 {
429 .name = "720p60",
430 .timings_type = VPBE_ENC_DV_TIMINGS,
431 .dv_timings = V4L2_DV_BT_CEA_1280X720P60,
432 .interlaced = 0,
433 .xres = 1280,
434 .yres = 720,
435 .aspect = {1, 1},
436 .fps = {60, 1},
437 .left_margin = 0x117,
438 .right_margin = 70,
439 .upper_margin = 38,
440 .lower_margin = 3,
441 .hsync_len = 80,
442 .vsync_len = 5,
443 },
444 {
445 .name = "1080i60",
446 .timings_type = VPBE_ENC_DV_TIMINGS,
447 .dv_timings = V4L2_DV_BT_CEA_1920X1080I60,
448 .interlaced = 1,
449 .xres = 1920,
450 .yres = 1080,
451 .aspect = {1, 1},
452 .fps = {30, 1},
453 .left_margin = 0xc9,
454 .right_margin = 80,
455 .upper_margin = 30,
456 .lower_margin = 3,
457 .hsync_len = 88,
458 .vsync_len = 5,
459 },
460 };
461
462 #define VENC_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
463
464 /*
465 * The outputs available from VPBE + ecnoders. Keep the
466 * the order same as that of encoders. First those from venc followed by that
467 * from encoders. Index in the output refers to index on a particular
468 * encoder.Driver uses this index to pass it to encoder when it supports more
469 * than one output. Application uses index of the array to set an output.
470 */
471 static struct vpbe_output dm365evm_vpbe_outputs[] = {
472 {
473 .output = {
474 .index = 0,
475 .name = "Composite",
476 .type = V4L2_OUTPUT_TYPE_ANALOG,
477 .std = VENC_STD_ALL,
478 .capabilities = V4L2_OUT_CAP_STD,
479 },
480 .subdev_name = DM365_VPBE_VENC_SUBDEV_NAME,
481 .default_mode = "ntsc",
482 .num_modes = ARRAY_SIZE(dm365evm_enc_std_timing),
483 .modes = dm365evm_enc_std_timing,
484 .if_params = MEDIA_BUS_FMT_FIXED,
485 },
486 {
487 .output = {
488 .index = 1,
489 .name = "Component",
490 .type = V4L2_OUTPUT_TYPE_ANALOG,
491 .capabilities = V4L2_OUT_CAP_DV_TIMINGS,
492 },
493 .subdev_name = DM365_VPBE_VENC_SUBDEV_NAME,
494 .default_mode = "480p59_94",
495 .num_modes = ARRAY_SIZE(dm365evm_enc_preset_timing),
496 .modes = dm365evm_enc_preset_timing,
497 .if_params = MEDIA_BUS_FMT_FIXED,
498 },
499 };
500
501 /*
502 * Amplifiers on the board
503 */
504 static struct ths7303_platform_data ths7303_pdata = {
505 .ch_1 = 3,
506 .ch_2 = 3,
507 .ch_3 = 3,
508 };
509
510 static struct amp_config_info vpbe_amp = {
511 .module_name = "ths7303",
512 .is_i2c = 1,
513 .board_info = {
514 I2C_BOARD_INFO("ths7303", 0x2c),
515 .platform_data = &ths7303_pdata,
516 }
517 };
518
519 static struct vpbe_config dm365evm_display_cfg = {
520 .module_name = "dm365-vpbe-display",
521 .i2c_adapter_id = 1,
522 .amp = &vpbe_amp,
523 .osd = {
524 .module_name = DM365_VPBE_OSD_SUBDEV_NAME,
525 },
526 .venc = {
527 .module_name = DM365_VPBE_VENC_SUBDEV_NAME,
528 },
529 .num_outputs = ARRAY_SIZE(dm365evm_vpbe_outputs),
530 .outputs = dm365evm_vpbe_outputs,
531 };
532
evm_init_i2c(void)533 static void __init evm_init_i2c(void)
534 {
535 davinci_init_i2c(&i2c_pdata);
536 i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
537 }
538
539 static struct platform_device *dm365_evm_nand_devices[] __initdata = {
540 &davinci_nand_device,
541 };
542
have_leds(void)543 static inline int have_leds(void)
544 {
545 #ifdef CONFIG_LEDS_CLASS
546 return 1;
547 #else
548 return 0;
549 #endif
550 }
551
552 struct cpld_led {
553 struct led_classdev cdev;
554 u8 mask;
555 };
556
557 static const struct {
558 const char *name;
559 const char *trigger;
560 } cpld_leds[] = {
561 { "dm365evm::ds2", },
562 { "dm365evm::ds3", },
563 { "dm365evm::ds4", },
564 { "dm365evm::ds5", },
565 { "dm365evm::ds6", "nand-disk", },
566 { "dm365evm::ds7", "mmc1", },
567 { "dm365evm::ds8", "mmc0", },
568 { "dm365evm::ds9", "heartbeat", },
569 };
570
cpld_led_set(struct led_classdev * cdev,enum led_brightness b)571 static void cpld_led_set(struct led_classdev *cdev, enum led_brightness b)
572 {
573 struct cpld_led *led = container_of(cdev, struct cpld_led, cdev);
574 u8 reg = __raw_readb(cpld + CPLD_LEDS);
575
576 if (b != LED_OFF)
577 reg &= ~led->mask;
578 else
579 reg |= led->mask;
580 __raw_writeb(reg, cpld + CPLD_LEDS);
581 }
582
cpld_led_get(struct led_classdev * cdev)583 static enum led_brightness cpld_led_get(struct led_classdev *cdev)
584 {
585 struct cpld_led *led = container_of(cdev, struct cpld_led, cdev);
586 u8 reg = __raw_readb(cpld + CPLD_LEDS);
587
588 return (reg & led->mask) ? LED_OFF : LED_FULL;
589 }
590
cpld_leds_init(void)591 static int __init cpld_leds_init(void)
592 {
593 int i;
594
595 if (!have_leds() || !cpld)
596 return 0;
597
598 /* setup LEDs */
599 __raw_writeb(0xff, cpld + CPLD_LEDS);
600 for (i = 0; i < ARRAY_SIZE(cpld_leds); i++) {
601 struct cpld_led *led;
602
603 led = kzalloc(sizeof(*led), GFP_KERNEL);
604 if (!led)
605 break;
606
607 led->cdev.name = cpld_leds[i].name;
608 led->cdev.brightness_set = cpld_led_set;
609 led->cdev.brightness_get = cpld_led_get;
610 led->cdev.default_trigger = cpld_leds[i].trigger;
611 led->mask = BIT(i);
612
613 if (led_classdev_register(NULL, &led->cdev) < 0) {
614 kfree(led);
615 break;
616 }
617 }
618
619 return 0;
620 }
621 /* run after subsys_initcall() for LEDs */
622 fs_initcall(cpld_leds_init);
623
624
evm_init_cpld(void)625 static void __init evm_init_cpld(void)
626 {
627 u8 mux, resets;
628 const char *label;
629 struct clk *aemif_clk;
630
631 /* Make sure we can configure the CPLD through CS1. Then
632 * leave it on for later access to MMC and LED registers.
633 */
634 aemif_clk = clk_get(NULL, "aemif");
635 if (IS_ERR(aemif_clk))
636 return;
637 clk_prepare_enable(aemif_clk);
638
639 if (request_mem_region(DM365_ASYNC_EMIF_DATA_CE1_BASE, SECTION_SIZE,
640 "cpld") == NULL)
641 goto fail;
642 cpld = ioremap(DM365_ASYNC_EMIF_DATA_CE1_BASE, SECTION_SIZE);
643 if (!cpld) {
644 release_mem_region(DM365_ASYNC_EMIF_DATA_CE1_BASE,
645 SECTION_SIZE);
646 fail:
647 pr_err("ERROR: can't map CPLD\n");
648 clk_disable_unprepare(aemif_clk);
649 return;
650 }
651
652 /* External muxing for some signals */
653 mux = 0;
654
655 /* Read SW5 to set up NAND + keypad _or_ OneNAND (sync read).
656 * NOTE: SW4 bus width setting must match!
657 */
658 if ((__raw_readb(cpld + CPLD_SWITCH) & BIT(5)) == 0) {
659 /* external keypad mux */
660 mux |= BIT(7);
661
662 platform_add_devices(dm365_evm_nand_devices,
663 ARRAY_SIZE(dm365_evm_nand_devices));
664 } else {
665 /* no OneNAND support yet */
666 }
667
668 /* Leave external chips in reset when unused. */
669 resets = BIT(3) | BIT(2) | BIT(1) | BIT(0);
670
671 /* Static video input config with SN74CBT16214 1-of-3 mux:
672 * - port b1 == tvp7002 (mux lowbits == 1 or 6)
673 * - port b2 == imager (mux lowbits == 2 or 7)
674 * - port b3 == tvp5146 (mux lowbits == 5)
675 *
676 * Runtime switching could work too, with limitations.
677 */
678 if (have_imager()) {
679 label = "HD imager";
680 mux |= 2;
681
682 /* externally mux MMC1/ENET/AIC33 to imager */
683 mux |= BIT(6) | BIT(5) | BIT(3);
684 } else {
685 struct davinci_soc_info *soc_info = &davinci_soc_info;
686
687 /* we can use MMC1 ... */
688 dm365evm_mmc_configure();
689 davinci_setup_mmc(1, &dm365evm_mmc_config);
690
691 /* ... and ENET ... */
692 dm365evm_emac_configure();
693 soc_info->emac_pdata->phy_id = DM365_EVM_PHY_ID;
694 resets &= ~BIT(3);
695
696 /* ... and AIC33 */
697 resets &= ~BIT(1);
698
699 if (have_tvp7002()) {
700 mux |= 1;
701 resets &= ~BIT(2);
702 label = "tvp7002 HD";
703 } else {
704 /* default to tvp5146 */
705 mux |= 5;
706 resets &= ~BIT(0);
707 label = "tvp5146 SD";
708 }
709 }
710 __raw_writeb(mux, cpld + CPLD_MUX);
711 __raw_writeb(resets, cpld + CPLD_RESETS);
712 pr_info("EVM: %s video input\n", label);
713
714 /* REVISIT export switches: NTSC/PAL (SW5.6), EXTRA1 (SW5.2), etc */
715 }
716
dm365_evm_map_io(void)717 static void __init dm365_evm_map_io(void)
718 {
719 dm365_init();
720 }
721
722 static struct spi_eeprom at25640 = {
723 .byte_len = SZ_64K / 8,
724 .name = "at25640",
725 .page_size = 32,
726 .flags = EE_ADDR2,
727 };
728
729 static struct spi_board_info dm365_evm_spi_info[] __initconst = {
730 {
731 .modalias = "at25",
732 .platform_data = &at25640,
733 .max_speed_hz = 10 * 1000 * 1000,
734 .bus_num = 0,
735 .chip_select = 0,
736 .mode = SPI_MODE_0,
737 },
738 };
739
dm365_evm_init(void)740 static __init void dm365_evm_init(void)
741 {
742 int ret;
743
744 ret = dm365_gpio_register();
745 if (ret)
746 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
747
748 evm_init_i2c();
749 davinci_serial_init(dm365_serial_device);
750
751 dm365evm_emac_configure();
752 dm365evm_mmc_configure();
753
754 davinci_setup_mmc(0, &dm365evm_mmc_config);
755
756 dm365_init_video(&vpfe_cfg, &dm365evm_display_cfg);
757
758 /* maybe setup mmc1/etc ... _after_ mmc0 */
759 evm_init_cpld();
760
761 #ifdef CONFIG_SND_DM365_AIC3X_CODEC
762 dm365_init_asp();
763 #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
764 dm365_init_vc();
765 #endif
766 dm365_init_rtc();
767 dm365_init_ks(&dm365evm_ks_data);
768
769 dm365_init_spi0(BIT(0), dm365_evm_spi_info,
770 ARRAY_SIZE(dm365_evm_spi_info));
771 }
772
773 MACHINE_START(DAVINCI_DM365_EVM, "DaVinci DM365 EVM")
774 .atag_offset = 0x100,
775 .map_io = dm365_evm_map_io,
776 .init_irq = davinci_irq_init,
777 .init_time = davinci_timer_init,
778 .init_machine = dm365_evm_init,
779 .init_late = davinci_init_late,
780 .dma_zone_size = SZ_128M,
781 .restart = davinci_restart,
782 MACHINE_END
783
784