1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * TI DaVinci EVM board support
4 *
5 * Author: Kevin Hilman, Deep Root Systems, LLC
6 *
7 * 2007 (c) MontaVista Software, Inc.
8 */
9 #include <linux/kernel.h>
10 #include <linux/init.h>
11 #include <linux/err.h>
12 #include <linux/platform_device.h>
13 #include <linux/mtd/mtd.h>
14 #include <linux/mtd/partitions.h>
15 #include <linux/mtd/rawnand.h>
16 #include <linux/i2c.h>
17 #include <linux/gpio.h>
18 #include <linux/gpio/machine.h>
19 #include <linux/clk.h>
20 #include <linux/dm9000.h>
21 #include <linux/videodev2.h>
22 #include <media/i2c/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 "serial.h"
35 #include "common.h"
36 #include "davinci.h"
37
38 /* NOTE: this is geared for the standard config, with a socketed
39 * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors. If you
40 * swap chips, maybe with a different block size, partitioning may
41 * need to be changed.
42 */
43 #define NAND_BLOCK_SIZE SZ_128K
44
45 static struct mtd_partition davinci_nand_partitions[] = {
46 {
47 /* UBL (a few copies) plus U-Boot */
48 .name = "bootloader",
49 .offset = 0,
50 .size = 15 * NAND_BLOCK_SIZE,
51 .mask_flags = MTD_WRITEABLE, /* force read-only */
52 }, {
53 /* U-Boot environment */
54 .name = "params",
55 .offset = MTDPART_OFS_APPEND,
56 .size = 1 * NAND_BLOCK_SIZE,
57 .mask_flags = 0,
58 }, {
59 .name = "kernel",
60 .offset = MTDPART_OFS_APPEND,
61 .size = SZ_4M,
62 .mask_flags = 0,
63 }, {
64 .name = "filesystem1",
65 .offset = MTDPART_OFS_APPEND,
66 .size = SZ_512M,
67 .mask_flags = 0,
68 }, {
69 .name = "filesystem2",
70 .offset = MTDPART_OFS_APPEND,
71 .size = MTDPART_SIZ_FULL,
72 .mask_flags = 0,
73 }
74 /* two blocks with bad block table (and mirror) at the end */
75 };
76
77 static struct davinci_nand_pdata davinci_nand_data = {
78 .core_chipsel = 0,
79 .mask_chipsel = BIT(14),
80 .parts = davinci_nand_partitions,
81 .nr_parts = ARRAY_SIZE(davinci_nand_partitions),
82 .engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST,
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 #define DM355_I2C_SDA_PIN GPIO_TO_PIN(0, 15)
112 #define DM355_I2C_SCL_PIN GPIO_TO_PIN(0, 14)
113
114 static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
115 .dev_id = "i2c_davinci.1",
116 .table = {
117 GPIO_LOOKUP("davinci_gpio", DM355_I2C_SDA_PIN, "sda",
118 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
119 GPIO_LOOKUP("davinci_gpio", DM355_I2C_SCL_PIN, "scl",
120 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
121 { }
122 },
123 };
124
125 static struct davinci_i2c_platform_data i2c_pdata = {
126 .bus_freq = 400 /* kHz */,
127 .bus_delay = 0 /* usec */,
128 .gpio_recovery = true,
129 };
130
131 static int dm355evm_mmc_gpios = -EINVAL;
132
dm355evm_mmcsd_gpios(unsigned gpio)133 static void dm355evm_mmcsd_gpios(unsigned gpio)
134 {
135 gpio_request(gpio + 0, "mmc0_ro");
136 gpio_request(gpio + 1, "mmc0_cd");
137 gpio_request(gpio + 2, "mmc1_ro");
138 gpio_request(gpio + 3, "mmc1_cd");
139
140 /* we "know" these are input-only so we don't
141 * need to call gpio_direction_input()
142 */
143
144 dm355evm_mmc_gpios = gpio;
145 }
146
147 static struct i2c_board_info dm355evm_i2c_info[] = {
148 { I2C_BOARD_INFO("dm355evm_msp", 0x25),
149 .platform_data = dm355evm_mmcsd_gpios,
150 },
151 /* { plus irq }, */
152 { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
153 };
154
evm_init_i2c(void)155 static void __init evm_init_i2c(void)
156 {
157 gpiod_add_lookup_table(&i2c_recovery_gpiod_table);
158 davinci_init_i2c(&i2c_pdata);
159
160 gpio_request(5, "dm355evm_msp");
161 gpio_direction_input(5);
162 dm355evm_i2c_info[0].irq = gpio_to_irq(5);
163
164 i2c_register_board_info(1, dm355evm_i2c_info,
165 ARRAY_SIZE(dm355evm_i2c_info));
166 }
167
168 static struct resource dm355evm_dm9000_rsrc[] = {
169 {
170 /* addr */
171 .start = 0x04014000,
172 .end = 0x04014001,
173 .flags = IORESOURCE_MEM,
174 }, {
175 /* data */
176 .start = 0x04014002,
177 .end = 0x04014003,
178 .flags = IORESOURCE_MEM,
179 }, {
180 .flags = IORESOURCE_IRQ
181 | IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
182 },
183 };
184
185 static struct dm9000_plat_data dm335evm_dm9000_platdata;
186
187 static struct platform_device dm355evm_dm9000 = {
188 .name = "dm9000",
189 .id = -1,
190 .resource = dm355evm_dm9000_rsrc,
191 .num_resources = ARRAY_SIZE(dm355evm_dm9000_rsrc),
192 .dev = {
193 .platform_data = &dm335evm_dm9000_platdata,
194 },
195 };
196
197 static struct tvp514x_platform_data tvp5146_pdata = {
198 .clk_polarity = 0,
199 .hs_polarity = 1,
200 .vs_polarity = 1
201 };
202
203 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
204 /* Inputs available at the TVP5146 */
205 static struct v4l2_input tvp5146_inputs[] = {
206 {
207 .index = 0,
208 .name = "Composite",
209 .type = V4L2_INPUT_TYPE_CAMERA,
210 .std = TVP514X_STD_ALL,
211 },
212 {
213 .index = 1,
214 .name = "S-Video",
215 .type = V4L2_INPUT_TYPE_CAMERA,
216 .std = TVP514X_STD_ALL,
217 },
218 };
219
220 /*
221 * this is the route info for connecting each input to decoder
222 * ouput that goes to vpfe. There is a one to one correspondence
223 * with tvp5146_inputs
224 */
225 static struct vpfe_route tvp5146_routes[] = {
226 {
227 .input = INPUT_CVBS_VI2B,
228 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
229 },
230 {
231 .input = INPUT_SVIDEO_VI2C_VI1C,
232 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
233 },
234 };
235
236 static struct vpfe_subdev_info vpfe_sub_devs[] = {
237 {
238 .name = "tvp5146",
239 .grp_id = 0,
240 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
241 .inputs = tvp5146_inputs,
242 .routes = tvp5146_routes,
243 .can_route = 1,
244 .ccdc_if_params = {
245 .if_type = VPFE_BT656,
246 .hdpol = VPFE_PINPOL_POSITIVE,
247 .vdpol = VPFE_PINPOL_POSITIVE,
248 },
249 .board_info = {
250 I2C_BOARD_INFO("tvp5146", 0x5d),
251 .platform_data = &tvp5146_pdata,
252 },
253 }
254 };
255
256 static struct vpfe_config vpfe_cfg = {
257 .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
258 .i2c_adapter_id = 1,
259 .sub_devs = vpfe_sub_devs,
260 .card_name = "DM355 EVM",
261 .ccdc = "DM355 CCDC",
262 };
263
264 /* venc standards timings */
265 static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = {
266 {
267 .name = "ntsc",
268 .timings_type = VPBE_ENC_STD,
269 .std_id = V4L2_STD_NTSC,
270 .interlaced = 1,
271 .xres = 720,
272 .yres = 480,
273 .aspect = {11, 10},
274 .fps = {30000, 1001},
275 .left_margin = 0x79,
276 .upper_margin = 0x10,
277 },
278 {
279 .name = "pal",
280 .timings_type = VPBE_ENC_STD,
281 .std_id = V4L2_STD_PAL,
282 .interlaced = 1,
283 .xres = 720,
284 .yres = 576,
285 .aspect = {54, 59},
286 .fps = {25, 1},
287 .left_margin = 0x7E,
288 .upper_margin = 0x16
289 },
290 };
291
292 #define VENC_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
293
294 /*
295 * The outputs available from VPBE + ecnoders. Keep the
296 * the order same as that of encoders. First those from venc followed by that
297 * from encoders. Index in the output refers to index on a particular encoder.
298 * Driver uses this index to pass it to encoder when it supports more than
299 * one output. Application uses index of the array to set an output.
300 */
301 static struct vpbe_output dm355evm_vpbe_outputs[] = {
302 {
303 .output = {
304 .index = 0,
305 .name = "Composite",
306 .type = V4L2_OUTPUT_TYPE_ANALOG,
307 .std = VENC_STD_ALL,
308 .capabilities = V4L2_OUT_CAP_STD,
309 },
310 .subdev_name = DM355_VPBE_VENC_SUBDEV_NAME,
311 .default_mode = "ntsc",
312 .num_modes = ARRAY_SIZE(dm355evm_enc_preset_timing),
313 .modes = dm355evm_enc_preset_timing,
314 .if_params = MEDIA_BUS_FMT_FIXED,
315 },
316 };
317
318 static struct vpbe_config dm355evm_display_cfg = {
319 .module_name = "dm355-vpbe-display",
320 .i2c_adapter_id = 1,
321 .osd = {
322 .module_name = DM355_VPBE_OSD_SUBDEV_NAME,
323 },
324 .venc = {
325 .module_name = DM355_VPBE_VENC_SUBDEV_NAME,
326 },
327 .num_outputs = ARRAY_SIZE(dm355evm_vpbe_outputs),
328 .outputs = dm355evm_vpbe_outputs,
329 };
330
331 static struct platform_device *davinci_evm_devices[] __initdata = {
332 &dm355evm_dm9000,
333 &davinci_nand_device,
334 };
335
dm355_evm_map_io(void)336 static void __init dm355_evm_map_io(void)
337 {
338 dm355_init();
339 }
340
dm355evm_mmc_get_cd(int module)341 static int dm355evm_mmc_get_cd(int module)
342 {
343 if (!gpio_is_valid(dm355evm_mmc_gpios))
344 return -ENXIO;
345 /* low == card present */
346 return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
347 }
348
dm355evm_mmc_get_ro(int module)349 static int dm355evm_mmc_get_ro(int module)
350 {
351 if (!gpio_is_valid(dm355evm_mmc_gpios))
352 return -ENXIO;
353 /* high == card's write protect switch active */
354 return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
355 }
356
357 static struct davinci_mmc_config dm355evm_mmc_config = {
358 .get_cd = dm355evm_mmc_get_cd,
359 .get_ro = dm355evm_mmc_get_ro,
360 .wires = 4,
361 .max_freq = 50000000,
362 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
363 };
364
365 /* Don't connect anything to J10 unless you're only using USB host
366 * mode *and* have to do so with some kind of gender-bender. If
367 * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
368 * the ID pin won't need any help.
369 */
370 #define USB_ID_VALUE 1 /* ID pulled low */
371
372 static struct spi_eeprom at25640a = {
373 .byte_len = SZ_64K / 8,
374 .name = "at25640a",
375 .page_size = 32,
376 .flags = EE_ADDR2,
377 };
378
379 static const struct spi_board_info dm355_evm_spi_info[] __initconst = {
380 {
381 .modalias = "at25",
382 .platform_data = &at25640a,
383 .max_speed_hz = 10 * 1000 * 1000, /* at 3v3 */
384 .bus_num = 0,
385 .chip_select = 0,
386 .mode = SPI_MODE_0,
387 },
388 };
389
dm355_evm_init(void)390 static __init void dm355_evm_init(void)
391 {
392 struct clk *aemif;
393 int ret;
394
395 dm355_register_clocks();
396
397 ret = dm355_gpio_register();
398 if (ret)
399 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
400
401 gpio_request(1, "dm9000");
402 gpio_direction_input(1);
403 dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
404
405 aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
406 if (!WARN(IS_ERR(aemif), "unable to get AEMIF clock\n"))
407 clk_prepare_enable(aemif);
408
409 platform_add_devices(davinci_evm_devices,
410 ARRAY_SIZE(davinci_evm_devices));
411 evm_init_i2c();
412 davinci_serial_init(dm355_serial_device);
413
414 /* NOTE: NAND flash timings set by the UBL are slower than
415 * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
416 * but could be 0x0400008c for about 25% faster page reads.
417 */
418
419 gpio_request(2, "usb_id_toggle");
420 gpio_direction_output(2, USB_ID_VALUE);
421 /* irlml6401 switches over 1A in under 8 msec */
422 davinci_setup_usb(1000, 8);
423
424 davinci_setup_mmc(0, &dm355evm_mmc_config);
425 davinci_setup_mmc(1, &dm355evm_mmc_config);
426
427 dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg);
428
429 dm355_init_spi0(BIT(0), dm355_evm_spi_info,
430 ARRAY_SIZE(dm355_evm_spi_info));
431
432 /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
433 dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN);
434 }
435
436 MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
437 .atag_offset = 0x100,
438 .map_io = dm355_evm_map_io,
439 .init_irq = dm355_init_irq,
440 .init_time = dm355_init_time,
441 .init_machine = dm355_evm_init,
442 .init_late = davinci_init_late,
443 .dma_zone_size = SZ_128M,
444 MACHINE_END
445