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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>
95a3477f 12#include <linux/init.h>
42d399e4 13#include <linux/err.h>
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14#include <linux/platform_device.h>
15#include <linux/mtd/mtd.h>
16#include <linux/mtd/partitions.h>
d4092d76 17#include <linux/mtd/rawnand.h>
95a3477f 18#include <linux/i2c.h>
95a3477f 19#include <linux/gpio.h>
e5353765 20#include <linux/gpio/machine.h>
95a3477f 21#include <linux/clk.h>
5c054de2 22#include <linux/dm9000.h>
51e68e27 23#include <linux/videodev2.h>
b5dcee22 24#include <media/i2c/tvp514x.h>
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25#include <linux/spi/spi.h>
26#include <linux/spi/eeprom.h>
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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>
95a3477f 32
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33#include <asm/mach-types.h>
34#include <asm/mach/arch.h>
95a3477f 35
95a3477f 36#include <mach/serial.h>
834acb2a 37#include <mach/common.h>
95a3477f 38
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39#include "davinci.h"
40
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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
48static 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
80static struct davinci_nand_pdata davinci_nand_data = {
39bdf863 81 .core_chipsel = 0,
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82 .mask_chipsel = BIT(14),
83 .parts = davinci_nand_partitions,
84 .nr_parts = ARRAY_SIZE(davinci_nand_partitions),
74c987a0 85 .ecc_mode = NAND_ECC_HW,
bb9ebd4e 86 .bbt_options = NAND_BBT_USE_FLASH,
74c987a0 87 .ecc_bits = 4,
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88};
89
90static struct resource davinci_nand_resources[] = {
91 {
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92 .start = DM355_ASYNC_EMIF_DATA_CE0_BASE,
93 .end = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
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94 .flags = IORESOURCE_MEM,
95 }, {
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96 .start = DM355_ASYNC_EMIF_CONTROL_BASE,
97 .end = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
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98 .flags = IORESOURCE_MEM,
99 },
100};
101
102static 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
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114#define DM355_I2C_SDA_PIN GPIO_TO_PIN(0, 15)
115#define DM355_I2C_SCL_PIN GPIO_TO_PIN(0, 14)
116
e5353765 117static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
9411ac07 118 .dev_id = "i2c_davinci.1",
e5353765 119 .table = {
94777ed3 120 GPIO_LOOKUP("davinci_gpio", DM355_I2C_SDA_PIN, "sda",
e5353765 121 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
94777ed3 122 GPIO_LOOKUP("davinci_gpio", DM355_I2C_SCL_PIN, "scl",
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123 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
124 },
125};
126
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127static struct davinci_i2c_platform_data i2c_pdata = {
128 .bus_freq = 400 /* kHz */,
129 .bus_delay = 0 /* usec */,
e5353765 130 .gpio_recovery = true,
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131};
132
133static int dm355evm_mmc_gpios = -EINVAL;
134
135static void dm355evm_mmcsd_gpios(unsigned gpio)
136{
137 gpio_request(gpio + 0, "mmc0_ro");
138 gpio_request(gpio + 1, "mmc0_cd");
139 gpio_request(gpio + 2, "mmc1_ro");
140 gpio_request(gpio + 3, "mmc1_cd");
141
142 /* we "know" these are input-only so we don't
143 * need to call gpio_direction_input()
144 */
145
146 dm355evm_mmc_gpios = gpio;
147}
148
149static struct i2c_board_info dm355evm_i2c_info[] = {
51e68e27 150 { I2C_BOARD_INFO("dm355evm_msp", 0x25),
95a3477f 151 .platform_data = dm355evm_mmcsd_gpios,
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152 },
153 /* { plus irq }, */
1a7ff8ff 154 { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
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155};
156
157static void __init evm_init_i2c(void)
158{
e5353765 159 gpiod_add_lookup_table(&i2c_recovery_gpiod_table);
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160 davinci_init_i2c(&i2c_pdata);
161
162 gpio_request(5, "dm355evm_msp");
163 gpio_direction_input(5);
164 dm355evm_i2c_info[0].irq = gpio_to_irq(5);
165
166 i2c_register_board_info(1, dm355evm_i2c_info,
167 ARRAY_SIZE(dm355evm_i2c_info));
168}
169
170static struct resource dm355evm_dm9000_rsrc[] = {
171 {
172 /* addr */
173 .start = 0x04014000,
174 .end = 0x04014001,
175 .flags = IORESOURCE_MEM,
176 }, {
177 /* data */
178 .start = 0x04014002,
179 .end = 0x04014003,
180 .flags = IORESOURCE_MEM,
181 }, {
182 .flags = IORESOURCE_IRQ
183 | IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
184 },
185};
186
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187static struct dm9000_plat_data dm335evm_dm9000_platdata;
188
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189static struct platform_device dm355evm_dm9000 = {
190 .name = "dm9000",
191 .id = -1,
192 .resource = dm355evm_dm9000_rsrc,
193 .num_resources = ARRAY_SIZE(dm355evm_dm9000_rsrc),
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194 .dev = {
195 .platform_data = &dm335evm_dm9000_platdata,
196 },
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197};
198
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199static struct tvp514x_platform_data tvp5146_pdata = {
200 .clk_polarity = 0,
201 .hs_polarity = 1,
202 .vs_polarity = 1
203};
204
205#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
206/* Inputs available at the TVP5146 */
207static struct v4l2_input tvp5146_inputs[] = {
208 {
209 .index = 0,
210 .name = "Composite",
211 .type = V4L2_INPUT_TYPE_CAMERA,
212 .std = TVP514X_STD_ALL,
213 },
214 {
215 .index = 1,
216 .name = "S-Video",
217 .type = V4L2_INPUT_TYPE_CAMERA,
218 .std = TVP514X_STD_ALL,
219 },
220};
221
222/*
223 * this is the route info for connecting each input to decoder
224 * ouput that goes to vpfe. There is a one to one correspondence
225 * with tvp5146_inputs
226 */
227static struct vpfe_route tvp5146_routes[] = {
228 {
229 .input = INPUT_CVBS_VI2B,
230 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
231 },
232 {
233 .input = INPUT_SVIDEO_VI2C_VI1C,
234 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
235 },
236};
237
238static struct vpfe_subdev_info vpfe_sub_devs[] = {
239 {
240 .name = "tvp5146",
241 .grp_id = 0,
242 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
243 .inputs = tvp5146_inputs,
244 .routes = tvp5146_routes,
245 .can_route = 1,
246 .ccdc_if_params = {
247 .if_type = VPFE_BT656,
248 .hdpol = VPFE_PINPOL_POSITIVE,
249 .vdpol = VPFE_PINPOL_POSITIVE,
250 },
251 .board_info = {
252 I2C_BOARD_INFO("tvp5146", 0x5d),
253 .platform_data = &tvp5146_pdata,
254 },
255 }
256};
257
258static struct vpfe_config vpfe_cfg = {
259 .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
077639f4 260 .i2c_adapter_id = 1,
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261 .sub_devs = vpfe_sub_devs,
262 .card_name = "DM355 EVM",
263 .ccdc = "DM355 CCDC",
264};
265
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266/* venc standards timings */
267static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = {
268 {
269 .name = "ntsc",
270 .timings_type = VPBE_ENC_STD,
89cdbba8 271 .std_id = V4L2_STD_NTSC,
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272 .interlaced = 1,
273 .xres = 720,
274 .yres = 480,
275 .aspect = {11, 10},
276 .fps = {30000, 1001},
277 .left_margin = 0x79,
278 .upper_margin = 0x10,
279 },
280 {
281 .name = "pal",
282 .timings_type = VPBE_ENC_STD,
89cdbba8 283 .std_id = V4L2_STD_PAL,
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284 .interlaced = 1,
285 .xres = 720,
286 .yres = 576,
287 .aspect = {54, 59},
288 .fps = {25, 1},
289 .left_margin = 0x7E,
290 .upper_margin = 0x16
291 },
292};
293
294#define VENC_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
295
296/*
297 * The outputs available from VPBE + ecnoders. Keep the
298 * the order same as that of encoders. First those from venc followed by that
299 * from encoders. Index in the output refers to index on a particular encoder.
300 * Driver uses this index to pass it to encoder when it supports more than
301 * one output. Application uses index of the array to set an output.
302 */
303static struct vpbe_output dm355evm_vpbe_outputs[] = {
304 {
305 .output = {
306 .index = 0,
307 .name = "Composite",
308 .type = V4L2_OUTPUT_TYPE_ANALOG,
309 .std = VENC_STD_ALL,
310 .capabilities = V4L2_OUT_CAP_STD,
311 },
312 .subdev_name = DM355_VPBE_VENC_SUBDEV_NAME,
313 .default_mode = "ntsc",
314 .num_modes = ARRAY_SIZE(dm355evm_enc_preset_timing),
315 .modes = dm355evm_enc_preset_timing,
27ffaeb0 316 .if_params = MEDIA_BUS_FMT_FIXED,
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317 },
318};
319
320static struct vpbe_config dm355evm_display_cfg = {
321 .module_name = "dm355-vpbe-display",
322 .i2c_adapter_id = 1,
323 .osd = {
324 .module_name = DM355_VPBE_OSD_SUBDEV_NAME,
325 },
326 .venc = {
327 .module_name = DM355_VPBE_VENC_SUBDEV_NAME,
328 },
329 .num_outputs = ARRAY_SIZE(dm355evm_vpbe_outputs),
330 .outputs = dm355evm_vpbe_outputs,
331};
332
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333static struct platform_device *davinci_evm_devices[] __initdata = {
334 &dm355evm_dm9000,
335 &davinci_nand_device,
336};
337
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338static void __init dm355_evm_map_io(void)
339{
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340 dm355_init();
341}
342
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343static int dm355evm_mmc_get_cd(int module)
344{
345 if (!gpio_is_valid(dm355evm_mmc_gpios))
346 return -ENXIO;
347 /* low == card present */
348 return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
349}
350
351static int dm355evm_mmc_get_ro(int module)
352{
353 if (!gpio_is_valid(dm355evm_mmc_gpios))
354 return -ENXIO;
355 /* high == card's write protect switch active */
356 return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
357}
358
359static struct davinci_mmc_config dm355evm_mmc_config = {
360 .get_cd = dm355evm_mmc_get_cd,
361 .get_ro = dm355evm_mmc_get_ro,
362 .wires = 4,
363 .max_freq = 50000000,
364 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
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365};
366
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367/* Don't connect anything to J10 unless you're only using USB host
368 * mode *and* have to do so with some kind of gender-bender. If
369 * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
370 * the ID pin won't need any help.
371 */
95a3477f 372#define USB_ID_VALUE 1 /* ID pulled low */
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373
374static struct spi_eeprom at25640a = {
375 .byte_len = SZ_64K / 8,
376 .name = "at25640a",
377 .page_size = 32,
378 .flags = EE_ADDR2,
379};
380
eec51afc 381static const struct spi_board_info dm355_evm_spi_info[] __initconst = {
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382 {
383 .modalias = "at25",
384 .platform_data = &at25640a,
385 .max_speed_hz = 10 * 1000 * 1000, /* at 3v3 */
386 .bus_num = 0,
387 .chip_select = 0,
388 .mode = SPI_MODE_0,
389 },
390};
391
392static __init void dm355_evm_init(void)
393{
394 struct clk *aemif;
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395 int ret;
396
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397 dm355_register_clocks();
398
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399 ret = dm355_gpio_register();
400 if (ret)
401 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
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402
403 gpio_request(1, "dm9000");
404 gpio_direction_input(1);
405 dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
406
407 aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
5bcd9272 408 if (!WARN(IS_ERR(aemif), "unable to get AEMIF clock\n"))
b6f1ffed 409 clk_prepare_enable(aemif);
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410
411 platform_add_devices(davinci_evm_devices,
412 ARRAY_SIZE(davinci_evm_devices));
413 evm_init_i2c();
fcf7157b 414 davinci_serial_init(dm355_serial_device);
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415
416 /* NOTE: NAND flash timings set by the UBL are slower than
417 * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
418 * but could be 0x0400008c for about 25% faster page reads.
419 */
420
421 gpio_request(2, "usb_id_toggle");
422 gpio_direction_output(2, USB_ID_VALUE);
423 /* irlml6401 switches over 1A in under 8 msec */
355fb4e3 424 davinci_setup_usb(1000, 8);
95a3477f 425
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426 davinci_setup_mmc(0, &dm355evm_mmc_config);
427 davinci_setup_mmc(1, &dm355evm_mmc_config);
428
87756177 429 dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg);
62a2d6cd 430
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431 dm355_init_spi0(BIT(0), dm355_evm_spi_info,
432 ARRAY_SIZE(dm355_evm_spi_info));
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433
434 /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
6bce5efd 435 dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN);
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436}
437
95a3477f 438MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
e7e56014 439 .atag_offset = 0x100,
95a3477f 440 .map_io = dm355_evm_map_io,
bd808947 441 .init_irq = davinci_irq_init,
96c08173 442 .init_time = dm355_init_time,
95a3477f 443 .init_machine = dm355_evm_init,
3aa3e840 444 .init_late = davinci_init_late,
f68deabf 445 .dma_zone_size = SZ_128M,
95a3477f 446MACHINE_END