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/nand.h>
18 #include <linux/i2c.h>
19 #include <linux/gpio.h>
20 #include <linux/clk.h>
21 #include <linux/videodev2.h>
22 #include <media/tvp514x.h>
23 #include <linux/spi/spi.h>
24 #include <linux/spi/eeprom.h>
25 #include <linux/platform_data/gpio-davinci.h>
26 #include <linux/platform_data/i2c-davinci.h>
27 #include <linux/platform_data/mtd-davinci.h>
28 #include <linux/platform_data/mmc-davinci.h>
29 #include <linux/platform_data/usb-davinci.h>
30
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
33
34 #include <mach/serial.h>
35 #include <mach/common.h>
36
37 #include "davinci.h"
38
39 /* NOTE: this is geared for the standard config, with a socketed
40 * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors. If you
41 * swap chips, maybe with a different block size, partitioning may
42 * need to be changed.
43 */
44 #define NAND_BLOCK_SIZE SZ_128K
45
46 static struct mtd_partition davinci_nand_partitions[] = {
47 {
48 /* UBL (a few copies) plus U-Boot */
49 .name = "bootloader",
50 .offset = 0,
51 .size = 15 * NAND_BLOCK_SIZE,
52 .mask_flags = MTD_WRITEABLE, /* force read-only */
53 }, {
54 /* U-Boot environment */
55 .name = "params",
56 .offset = MTDPART_OFS_APPEND,
57 .size = 1 * NAND_BLOCK_SIZE,
58 .mask_flags = 0,
59 }, {
60 .name = "kernel",
61 .offset = MTDPART_OFS_APPEND,
62 .size = SZ_4M,
63 .mask_flags = 0,
64 }, {
65 .name = "filesystem1",
66 .offset = MTDPART_OFS_APPEND,
67 .size = SZ_512M,
68 .mask_flags = 0,
69 }, {
70 .name = "filesystem2",
71 .offset = MTDPART_OFS_APPEND,
72 .size = MTDPART_SIZ_FULL,
73 .mask_flags = 0,
74 }
75 /* two blocks with bad block table (and mirror) at the end */
76 };
77
78 static struct davinci_nand_pdata davinci_nand_data = {
79 .mask_chipsel = BIT(14),
80 .parts = davinci_nand_partitions,
81 .nr_parts = ARRAY_SIZE(davinci_nand_partitions),
82 .ecc_mode = NAND_ECC_HW,
83 .bbt_options = NAND_BBT_USE_FLASH,
84 .ecc_bits = 4,
85 };
86
87 static struct resource davinci_nand_resources[] = {
88 {
89 .start = DM355_ASYNC_EMIF_DATA_CE0_BASE,
90 .end = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
91 .flags = IORESOURCE_MEM,
92 }, {
93 .start = DM355_ASYNC_EMIF_CONTROL_BASE,
94 .end = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
95 .flags = IORESOURCE_MEM,
96 },
97 };
98
99 static struct platform_device davinci_nand_device = {
100 .name = "davinci_nand",
101 .id = 0,
102
103 .num_resources = ARRAY_SIZE(davinci_nand_resources),
104 .resource = davinci_nand_resources,
105
106 .dev = {
107 .platform_data = &davinci_nand_data,
108 },
109 };
110
111 static struct davinci_i2c_platform_data i2c_pdata = {
112 .bus_freq = 400 /* kHz */,
113 .bus_delay = 0 /* usec */,
114 .sda_pin = 15,
115 .scl_pin = 14,
116 };
117
118 static struct snd_platform_data dm355_evm_snd_data;
119
120 static int dm355evm_mmc_gpios = -EINVAL;
121
dm355evm_mmcsd_gpios(unsigned gpio)122 static void dm355evm_mmcsd_gpios(unsigned gpio)
123 {
124 gpio_request(gpio + 0, "mmc0_ro");
125 gpio_request(gpio + 1, "mmc0_cd");
126 gpio_request(gpio + 2, "mmc1_ro");
127 gpio_request(gpio + 3, "mmc1_cd");
128
129 /* we "know" these are input-only so we don't
130 * need to call gpio_direction_input()
131 */
132
133 dm355evm_mmc_gpios = gpio;
134 }
135
136 static struct i2c_board_info dm355evm_i2c_info[] = {
137 { I2C_BOARD_INFO("dm355evm_msp", 0x25),
138 .platform_data = dm355evm_mmcsd_gpios,
139 },
140 /* { plus irq }, */
141 { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
142 };
143
evm_init_i2c(void)144 static void __init evm_init_i2c(void)
145 {
146 davinci_init_i2c(&i2c_pdata);
147
148 gpio_request(5, "dm355evm_msp");
149 gpio_direction_input(5);
150 dm355evm_i2c_info[0].irq = gpio_to_irq(5);
151
152 i2c_register_board_info(1, dm355evm_i2c_info,
153 ARRAY_SIZE(dm355evm_i2c_info));
154 }
155
156 static struct resource dm355evm_dm9000_rsrc[] = {
157 {
158 /* addr */
159 .start = 0x04014000,
160 .end = 0x04014001,
161 .flags = IORESOURCE_MEM,
162 }, {
163 /* data */
164 .start = 0x04014002,
165 .end = 0x04014003,
166 .flags = IORESOURCE_MEM,
167 }, {
168 .flags = IORESOURCE_IRQ
169 | IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
170 },
171 };
172
173 static struct platform_device dm355evm_dm9000 = {
174 .name = "dm9000",
175 .id = -1,
176 .resource = dm355evm_dm9000_rsrc,
177 .num_resources = ARRAY_SIZE(dm355evm_dm9000_rsrc),
178 };
179
180 static struct tvp514x_platform_data tvp5146_pdata = {
181 .clk_polarity = 0,
182 .hs_polarity = 1,
183 .vs_polarity = 1
184 };
185
186 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
187 /* Inputs available at the TVP5146 */
188 static struct v4l2_input tvp5146_inputs[] = {
189 {
190 .index = 0,
191 .name = "Composite",
192 .type = V4L2_INPUT_TYPE_CAMERA,
193 .std = TVP514X_STD_ALL,
194 },
195 {
196 .index = 1,
197 .name = "S-Video",
198 .type = V4L2_INPUT_TYPE_CAMERA,
199 .std = TVP514X_STD_ALL,
200 },
201 };
202
203 /*
204 * this is the route info for connecting each input to decoder
205 * ouput that goes to vpfe. There is a one to one correspondence
206 * with tvp5146_inputs
207 */
208 static struct vpfe_route tvp5146_routes[] = {
209 {
210 .input = INPUT_CVBS_VI2B,
211 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
212 },
213 {
214 .input = INPUT_SVIDEO_VI2C_VI1C,
215 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
216 },
217 };
218
219 static struct vpfe_subdev_info vpfe_sub_devs[] = {
220 {
221 .name = "tvp5146",
222 .grp_id = 0,
223 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
224 .inputs = tvp5146_inputs,
225 .routes = tvp5146_routes,
226 .can_route = 1,
227 .ccdc_if_params = {
228 .if_type = VPFE_BT656,
229 .hdpol = VPFE_PINPOL_POSITIVE,
230 .vdpol = VPFE_PINPOL_POSITIVE,
231 },
232 .board_info = {
233 I2C_BOARD_INFO("tvp5146", 0x5d),
234 .platform_data = &tvp5146_pdata,
235 },
236 }
237 };
238
239 static struct vpfe_config vpfe_cfg = {
240 .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
241 .i2c_adapter_id = 1,
242 .sub_devs = vpfe_sub_devs,
243 .card_name = "DM355 EVM",
244 .ccdc = "DM355 CCDC",
245 };
246
247 /* venc standards timings */
248 static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = {
249 {
250 .name = "ntsc",
251 .timings_type = VPBE_ENC_STD,
252 .std_id = V4L2_STD_NTSC,
253 .interlaced = 1,
254 .xres = 720,
255 .yres = 480,
256 .aspect = {11, 10},
257 .fps = {30000, 1001},
258 .left_margin = 0x79,
259 .upper_margin = 0x10,
260 },
261 {
262 .name = "pal",
263 .timings_type = VPBE_ENC_STD,
264 .std_id = V4L2_STD_PAL,
265 .interlaced = 1,
266 .xres = 720,
267 .yres = 576,
268 .aspect = {54, 59},
269 .fps = {25, 1},
270 .left_margin = 0x7E,
271 .upper_margin = 0x16
272 },
273 };
274
275 #define VENC_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
276
277 /*
278 * The outputs available from VPBE + ecnoders. Keep the
279 * the order same as that of encoders. First those from venc followed by that
280 * from encoders. Index in the output refers to index on a particular encoder.
281 * Driver uses this index to pass it to encoder when it supports more than
282 * one output. Application uses index of the array to set an output.
283 */
284 static struct vpbe_output dm355evm_vpbe_outputs[] = {
285 {
286 .output = {
287 .index = 0,
288 .name = "Composite",
289 .type = V4L2_OUTPUT_TYPE_ANALOG,
290 .std = VENC_STD_ALL,
291 .capabilities = V4L2_OUT_CAP_STD,
292 },
293 .subdev_name = DM355_VPBE_VENC_SUBDEV_NAME,
294 .default_mode = "ntsc",
295 .num_modes = ARRAY_SIZE(dm355evm_enc_preset_timing),
296 .modes = dm355evm_enc_preset_timing,
297 .if_params = MEDIA_BUS_FMT_FIXED,
298 },
299 };
300
301 static struct vpbe_config dm355evm_display_cfg = {
302 .module_name = "dm355-vpbe-display",
303 .i2c_adapter_id = 1,
304 .osd = {
305 .module_name = DM355_VPBE_OSD_SUBDEV_NAME,
306 },
307 .venc = {
308 .module_name = DM355_VPBE_VENC_SUBDEV_NAME,
309 },
310 .num_outputs = ARRAY_SIZE(dm355evm_vpbe_outputs),
311 .outputs = dm355evm_vpbe_outputs,
312 };
313
314 static struct platform_device *davinci_evm_devices[] __initdata = {
315 &dm355evm_dm9000,
316 &davinci_nand_device,
317 };
318
dm355_evm_map_io(void)319 static void __init dm355_evm_map_io(void)
320 {
321 dm355_init();
322 }
323
dm355evm_mmc_get_cd(int module)324 static int dm355evm_mmc_get_cd(int module)
325 {
326 if (!gpio_is_valid(dm355evm_mmc_gpios))
327 return -ENXIO;
328 /* low == card present */
329 return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
330 }
331
dm355evm_mmc_get_ro(int module)332 static int dm355evm_mmc_get_ro(int module)
333 {
334 if (!gpio_is_valid(dm355evm_mmc_gpios))
335 return -ENXIO;
336 /* high == card's write protect switch active */
337 return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
338 }
339
340 static struct davinci_mmc_config dm355evm_mmc_config = {
341 .get_cd = dm355evm_mmc_get_cd,
342 .get_ro = dm355evm_mmc_get_ro,
343 .wires = 4,
344 .max_freq = 50000000,
345 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
346 };
347
348 /* Don't connect anything to J10 unless you're only using USB host
349 * mode *and* have to do so with some kind of gender-bender. If
350 * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
351 * the ID pin won't need any help.
352 */
353 #define USB_ID_VALUE 1 /* ID pulled low */
354
355 static struct spi_eeprom at25640a = {
356 .byte_len = SZ_64K / 8,
357 .name = "at25640a",
358 .page_size = 32,
359 .flags = EE_ADDR2,
360 };
361
362 static struct spi_board_info dm355_evm_spi_info[] __initconst = {
363 {
364 .modalias = "at25",
365 .platform_data = &at25640a,
366 .max_speed_hz = 10 * 1000 * 1000, /* at 3v3 */
367 .bus_num = 0,
368 .chip_select = 0,
369 .mode = SPI_MODE_0,
370 },
371 };
372
dm355_evm_init(void)373 static __init void dm355_evm_init(void)
374 {
375 struct clk *aemif;
376 int ret;
377
378 ret = dm355_gpio_register();
379 if (ret)
380 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
381
382 gpio_request(1, "dm9000");
383 gpio_direction_input(1);
384 dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
385
386 aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
387 if (IS_ERR(aemif))
388 WARN("%s: unable to get AEMIF clock\n", __func__);
389 else
390 clk_prepare_enable(aemif);
391
392 platform_add_devices(davinci_evm_devices,
393 ARRAY_SIZE(davinci_evm_devices));
394 evm_init_i2c();
395 davinci_serial_init(dm355_serial_device);
396
397 /* NOTE: NAND flash timings set by the UBL are slower than
398 * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
399 * but could be 0x0400008c for about 25% faster page reads.
400 */
401
402 gpio_request(2, "usb_id_toggle");
403 gpio_direction_output(2, USB_ID_VALUE);
404 /* irlml6401 switches over 1A in under 8 msec */
405 davinci_setup_usb(1000, 8);
406
407 davinci_setup_mmc(0, &dm355evm_mmc_config);
408 davinci_setup_mmc(1, &dm355evm_mmc_config);
409
410 dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg);
411
412 dm355_init_spi0(BIT(0), dm355_evm_spi_info,
413 ARRAY_SIZE(dm355_evm_spi_info));
414
415 /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
416 dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN, &dm355_evm_snd_data);
417 }
418
419 MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
420 .atag_offset = 0x100,
421 .map_io = dm355_evm_map_io,
422 .init_irq = davinci_irq_init,
423 .init_time = davinci_timer_init,
424 .init_machine = dm355_evm_init,
425 .init_late = davinci_init_late,
426 .dma_zone_size = SZ_128M,
427 .restart = davinci_restart,
428 MACHINE_END
429