1 /*
2 * TI DaVinci EVM board support
3 *
4 * Author: Kevin Hilman, Deep Root Systems, LLC
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/err.h>
14 #include <linux/platform_device.h>
15 #include <linux/mtd/mtd.h>
16 #include <linux/mtd/partitions.h>
17 #include <linux/mtd/rawnand.h>
18 #include <linux/i2c.h>
19 #include <linux/gpio.h>
20 #include <linux/gpio/machine.h>
21 #include <linux/clk.h>
22 #include <linux/dm9000.h>
23 #include <linux/videodev2.h>
24 #include <media/i2c/tvp514x.h>
25 #include <linux/spi/spi.h>
26 #include <linux/spi/eeprom.h>
27 #include <linux/platform_data/gpio-davinci.h>
28 #include <linux/platform_data/i2c-davinci.h>
29 #include <linux/platform_data/mtd-davinci.h>
30 #include <linux/platform_data/mmc-davinci.h>
31 #include <linux/platform_data/usb-davinci.h>
32
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
35
36 #include <mach/serial.h>
37 #include <mach/common.h>
38
39 #include "davinci.h"
40
41 /* NOTE: this is geared for the standard config, with a socketed
42 * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors. If you
43 * swap chips, maybe with a different block size, partitioning may
44 * need to be changed.
45 */
46 #define NAND_BLOCK_SIZE SZ_128K
47
48 static struct mtd_partition davinci_nand_partitions[] = {
49 {
50 /* UBL (a few copies) plus U-Boot */
51 .name = "bootloader",
52 .offset = 0,
53 .size = 15 * NAND_BLOCK_SIZE,
54 .mask_flags = MTD_WRITEABLE, /* force read-only */
55 }, {
56 /* U-Boot environment */
57 .name = "params",
58 .offset = MTDPART_OFS_APPEND,
59 .size = 1 * NAND_BLOCK_SIZE,
60 .mask_flags = 0,
61 }, {
62 .name = "kernel",
63 .offset = MTDPART_OFS_APPEND,
64 .size = SZ_4M,
65 .mask_flags = 0,
66 }, {
67 .name = "filesystem1",
68 .offset = MTDPART_OFS_APPEND,
69 .size = SZ_512M,
70 .mask_flags = 0,
71 }, {
72 .name = "filesystem2",
73 .offset = MTDPART_OFS_APPEND,
74 .size = MTDPART_SIZ_FULL,
75 .mask_flags = 0,
76 }
77 /* two blocks with bad block table (and mirror) at the end */
78 };
79
80 static struct davinci_nand_pdata davinci_nand_data = {
81 .core_chipsel = 0,
82 .mask_chipsel = BIT(14),
83 .parts = davinci_nand_partitions,
84 .nr_parts = ARRAY_SIZE(davinci_nand_partitions),
85 .engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST,
86 .bbt_options = NAND_BBT_USE_FLASH,
87 .ecc_bits = 4,
88 };
89
90 static struct resource davinci_nand_resources[] = {
91 {
92 .start = DM355_ASYNC_EMIF_DATA_CE0_BASE,
93 .end = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
94 .flags = IORESOURCE_MEM,
95 }, {
96 .start = DM355_ASYNC_EMIF_CONTROL_BASE,
97 .end = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
98 .flags = IORESOURCE_MEM,
99 },
100 };
101
102 static struct platform_device davinci_nand_device = {
103 .name = "davinci_nand",
104 .id = 0,
105
106 .num_resources = ARRAY_SIZE(davinci_nand_resources),
107 .resource = davinci_nand_resources,
108
109 .dev = {
110 .platform_data = &davinci_nand_data,
111 },
112 };
113
114 #define DM355_I2C_SDA_PIN GPIO_TO_PIN(0, 15)
115 #define DM355_I2C_SCL_PIN GPIO_TO_PIN(0, 14)
116
117 static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
118 .dev_id = "i2c_davinci.1",
119 .table = {
120 GPIO_LOOKUP("davinci_gpio", DM355_I2C_SDA_PIN, "sda",
121 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
122 GPIO_LOOKUP("davinci_gpio", DM355_I2C_SCL_PIN, "scl",
123 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
124 { }
125 },
126 };
127
128 static struct davinci_i2c_platform_data i2c_pdata = {
129 .bus_freq = 400 /* kHz */,
130 .bus_delay = 0 /* usec */,
131 .gpio_recovery = true,
132 };
133
134 static int dm355evm_mmc_gpios = -EINVAL;
135
dm355evm_mmcsd_gpios(unsigned gpio)136 static void dm355evm_mmcsd_gpios(unsigned gpio)
137 {
138 gpio_request(gpio + 0, "mmc0_ro");
139 gpio_request(gpio + 1, "mmc0_cd");
140 gpio_request(gpio + 2, "mmc1_ro");
141 gpio_request(gpio + 3, "mmc1_cd");
142
143 /* we "know" these are input-only so we don't
144 * need to call gpio_direction_input()
145 */
146
147 dm355evm_mmc_gpios = gpio;
148 }
149
150 static struct i2c_board_info dm355evm_i2c_info[] = {
151 { I2C_BOARD_INFO("dm355evm_msp", 0x25),
152 .platform_data = dm355evm_mmcsd_gpios,
153 },
154 /* { plus irq }, */
155 { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
156 };
157
evm_init_i2c(void)158 static void __init evm_init_i2c(void)
159 {
160 gpiod_add_lookup_table(&i2c_recovery_gpiod_table);
161 davinci_init_i2c(&i2c_pdata);
162
163 gpio_request(5, "dm355evm_msp");
164 gpio_direction_input(5);
165 dm355evm_i2c_info[0].irq = gpio_to_irq(5);
166
167 i2c_register_board_info(1, dm355evm_i2c_info,
168 ARRAY_SIZE(dm355evm_i2c_info));
169 }
170
171 static struct resource dm355evm_dm9000_rsrc[] = {
172 {
173 /* addr */
174 .start = 0x04014000,
175 .end = 0x04014001,
176 .flags = IORESOURCE_MEM,
177 }, {
178 /* data */
179 .start = 0x04014002,
180 .end = 0x04014003,
181 .flags = IORESOURCE_MEM,
182 }, {
183 .flags = IORESOURCE_IRQ
184 | IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
185 },
186 };
187
188 static struct dm9000_plat_data dm335evm_dm9000_platdata;
189
190 static struct platform_device dm355evm_dm9000 = {
191 .name = "dm9000",
192 .id = -1,
193 .resource = dm355evm_dm9000_rsrc,
194 .num_resources = ARRAY_SIZE(dm355evm_dm9000_rsrc),
195 .dev = {
196 .platform_data = &dm335evm_dm9000_platdata,
197 },
198 };
199
200 static struct tvp514x_platform_data tvp5146_pdata = {
201 .clk_polarity = 0,
202 .hs_polarity = 1,
203 .vs_polarity = 1
204 };
205
206 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
207 /* Inputs available at the TVP5146 */
208 static struct v4l2_input tvp5146_inputs[] = {
209 {
210 .index = 0,
211 .name = "Composite",
212 .type = V4L2_INPUT_TYPE_CAMERA,
213 .std = TVP514X_STD_ALL,
214 },
215 {
216 .index = 1,
217 .name = "S-Video",
218 .type = V4L2_INPUT_TYPE_CAMERA,
219 .std = TVP514X_STD_ALL,
220 },
221 };
222
223 /*
224 * this is the route info for connecting each input to decoder
225 * ouput that goes to vpfe. There is a one to one correspondence
226 * with tvp5146_inputs
227 */
228 static struct vpfe_route tvp5146_routes[] = {
229 {
230 .input = INPUT_CVBS_VI2B,
231 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
232 },
233 {
234 .input = INPUT_SVIDEO_VI2C_VI1C,
235 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
236 },
237 };
238
239 static struct vpfe_subdev_info vpfe_sub_devs[] = {
240 {
241 .name = "tvp5146",
242 .grp_id = 0,
243 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
244 .inputs = tvp5146_inputs,
245 .routes = tvp5146_routes,
246 .can_route = 1,
247 .ccdc_if_params = {
248 .if_type = VPFE_BT656,
249 .hdpol = VPFE_PINPOL_POSITIVE,
250 .vdpol = VPFE_PINPOL_POSITIVE,
251 },
252 .board_info = {
253 I2C_BOARD_INFO("tvp5146", 0x5d),
254 .platform_data = &tvp5146_pdata,
255 },
256 }
257 };
258
259 static struct vpfe_config vpfe_cfg = {
260 .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
261 .i2c_adapter_id = 1,
262 .sub_devs = vpfe_sub_devs,
263 .card_name = "DM355 EVM",
264 .ccdc = "DM355 CCDC",
265 };
266
267 /* venc standards timings */
268 static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = {
269 {
270 .name = "ntsc",
271 .timings_type = VPBE_ENC_STD,
272 .std_id = V4L2_STD_NTSC,
273 .interlaced = 1,
274 .xres = 720,
275 .yres = 480,
276 .aspect = {11, 10},
277 .fps = {30000, 1001},
278 .left_margin = 0x79,
279 .upper_margin = 0x10,
280 },
281 {
282 .name = "pal",
283 .timings_type = VPBE_ENC_STD,
284 .std_id = V4L2_STD_PAL,
285 .interlaced = 1,
286 .xres = 720,
287 .yres = 576,
288 .aspect = {54, 59},
289 .fps = {25, 1},
290 .left_margin = 0x7E,
291 .upper_margin = 0x16
292 },
293 };
294
295 #define VENC_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
296
297 /*
298 * The outputs available from VPBE + ecnoders. Keep the
299 * the order same as that of encoders. First those from venc followed by that
300 * from encoders. Index in the output refers to index on a particular encoder.
301 * Driver uses this index to pass it to encoder when it supports more than
302 * one output. Application uses index of the array to set an output.
303 */
304 static struct vpbe_output dm355evm_vpbe_outputs[] = {
305 {
306 .output = {
307 .index = 0,
308 .name = "Composite",
309 .type = V4L2_OUTPUT_TYPE_ANALOG,
310 .std = VENC_STD_ALL,
311 .capabilities = V4L2_OUT_CAP_STD,
312 },
313 .subdev_name = DM355_VPBE_VENC_SUBDEV_NAME,
314 .default_mode = "ntsc",
315 .num_modes = ARRAY_SIZE(dm355evm_enc_preset_timing),
316 .modes = dm355evm_enc_preset_timing,
317 .if_params = MEDIA_BUS_FMT_FIXED,
318 },
319 };
320
321 static struct vpbe_config dm355evm_display_cfg = {
322 .module_name = "dm355-vpbe-display",
323 .i2c_adapter_id = 1,
324 .osd = {
325 .module_name = DM355_VPBE_OSD_SUBDEV_NAME,
326 },
327 .venc = {
328 .module_name = DM355_VPBE_VENC_SUBDEV_NAME,
329 },
330 .num_outputs = ARRAY_SIZE(dm355evm_vpbe_outputs),
331 .outputs = dm355evm_vpbe_outputs,
332 };
333
334 static struct platform_device *davinci_evm_devices[] __initdata = {
335 &dm355evm_dm9000,
336 &davinci_nand_device,
337 };
338
dm355_evm_map_io(void)339 static void __init dm355_evm_map_io(void)
340 {
341 dm355_init();
342 }
343
dm355evm_mmc_get_cd(int module)344 static int dm355evm_mmc_get_cd(int module)
345 {
346 if (!gpio_is_valid(dm355evm_mmc_gpios))
347 return -ENXIO;
348 /* low == card present */
349 return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
350 }
351
dm355evm_mmc_get_ro(int module)352 static int dm355evm_mmc_get_ro(int module)
353 {
354 if (!gpio_is_valid(dm355evm_mmc_gpios))
355 return -ENXIO;
356 /* high == card's write protect switch active */
357 return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
358 }
359
360 static struct davinci_mmc_config dm355evm_mmc_config = {
361 .get_cd = dm355evm_mmc_get_cd,
362 .get_ro = dm355evm_mmc_get_ro,
363 .wires = 4,
364 .max_freq = 50000000,
365 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
366 };
367
368 /* Don't connect anything to J10 unless you're only using USB host
369 * mode *and* have to do so with some kind of gender-bender. If
370 * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
371 * the ID pin won't need any help.
372 */
373 #define USB_ID_VALUE 1 /* ID pulled low */
374
375 static struct spi_eeprom at25640a = {
376 .byte_len = SZ_64K / 8,
377 .name = "at25640a",
378 .page_size = 32,
379 .flags = EE_ADDR2,
380 };
381
382 static const struct spi_board_info dm355_evm_spi_info[] __initconst = {
383 {
384 .modalias = "at25",
385 .platform_data = &at25640a,
386 .max_speed_hz = 10 * 1000 * 1000, /* at 3v3 */
387 .bus_num = 0,
388 .chip_select = 0,
389 .mode = SPI_MODE_0,
390 },
391 };
392
dm355_evm_init(void)393 static __init void dm355_evm_init(void)
394 {
395 struct clk *aemif;
396 int ret;
397
398 dm355_register_clocks();
399
400 ret = dm355_gpio_register();
401 if (ret)
402 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
403
404 gpio_request(1, "dm9000");
405 gpio_direction_input(1);
406 dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
407
408 aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
409 if (!WARN(IS_ERR(aemif), "unable to get AEMIF clock\n"))
410 clk_prepare_enable(aemif);
411
412 platform_add_devices(davinci_evm_devices,
413 ARRAY_SIZE(davinci_evm_devices));
414 evm_init_i2c();
415 davinci_serial_init(dm355_serial_device);
416
417 /* NOTE: NAND flash timings set by the UBL are slower than
418 * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
419 * but could be 0x0400008c for about 25% faster page reads.
420 */
421
422 gpio_request(2, "usb_id_toggle");
423 gpio_direction_output(2, USB_ID_VALUE);
424 /* irlml6401 switches over 1A in under 8 msec */
425 davinci_setup_usb(1000, 8);
426
427 davinci_setup_mmc(0, &dm355evm_mmc_config);
428 davinci_setup_mmc(1, &dm355evm_mmc_config);
429
430 dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg);
431
432 dm355_init_spi0(BIT(0), dm355_evm_spi_info,
433 ARRAY_SIZE(dm355_evm_spi_info));
434
435 /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
436 dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN);
437 }
438
439 MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
440 .atag_offset = 0x100,
441 .map_io = dm355_evm_map_io,
442 .init_irq = dm355_init_irq,
443 .init_time = dm355_init_time,
444 .init_machine = dm355_evm_init,
445 .init_late = davinci_init_late,
446 .dma_zone_size = SZ_128M,
447 MACHINE_END
448