18296a99c4d281b2e89b60d1f98ccbcac5805c41
[platform/kernel/linux-rpi.git] / arch / arm / mach-davinci / board-dm355-evm.c
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/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 <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 int dm355evm_mmc_gpios = -EINVAL;
119
120 static void dm355evm_mmcsd_gpios(unsigned gpio)
121 {
122         gpio_request(gpio + 0, "mmc0_ro");
123         gpio_request(gpio + 1, "mmc0_cd");
124         gpio_request(gpio + 2, "mmc1_ro");
125         gpio_request(gpio + 3, "mmc1_cd");
126
127         /* we "know" these are input-only so we don't
128          * need to call gpio_direction_input()
129          */
130
131         dm355evm_mmc_gpios = gpio;
132 }
133
134 static struct i2c_board_info dm355evm_i2c_info[] = {
135         {       I2C_BOARD_INFO("dm355evm_msp", 0x25),
136                 .platform_data = dm355evm_mmcsd_gpios,
137         },
138         /* { plus irq  }, */
139         { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
140 };
141
142 static void __init evm_init_i2c(void)
143 {
144         davinci_init_i2c(&i2c_pdata);
145
146         gpio_request(5, "dm355evm_msp");
147         gpio_direction_input(5);
148         dm355evm_i2c_info[0].irq = gpio_to_irq(5);
149
150         i2c_register_board_info(1, dm355evm_i2c_info,
151                         ARRAY_SIZE(dm355evm_i2c_info));
152 }
153
154 static struct resource dm355evm_dm9000_rsrc[] = {
155         {
156                 /* addr */
157                 .start  = 0x04014000,
158                 .end    = 0x04014001,
159                 .flags  = IORESOURCE_MEM,
160         }, {
161                 /* data */
162                 .start  = 0x04014002,
163                 .end    = 0x04014003,
164                 .flags  = IORESOURCE_MEM,
165         }, {
166                 .flags  = IORESOURCE_IRQ
167                         | IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
168         },
169 };
170
171 static struct platform_device dm355evm_dm9000 = {
172         .name           = "dm9000",
173         .id             = -1,
174         .resource       = dm355evm_dm9000_rsrc,
175         .num_resources  = ARRAY_SIZE(dm355evm_dm9000_rsrc),
176 };
177
178 static struct tvp514x_platform_data tvp5146_pdata = {
179         .clk_polarity = 0,
180         .hs_polarity = 1,
181         .vs_polarity = 1
182 };
183
184 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
185 /* Inputs available at the TVP5146 */
186 static struct v4l2_input tvp5146_inputs[] = {
187         {
188                 .index = 0,
189                 .name = "Composite",
190                 .type = V4L2_INPUT_TYPE_CAMERA,
191                 .std = TVP514X_STD_ALL,
192         },
193         {
194                 .index = 1,
195                 .name = "S-Video",
196                 .type = V4L2_INPUT_TYPE_CAMERA,
197                 .std = TVP514X_STD_ALL,
198         },
199 };
200
201 /*
202  * this is the route info for connecting each input to decoder
203  * ouput that goes to vpfe. There is a one to one correspondence
204  * with tvp5146_inputs
205  */
206 static struct vpfe_route tvp5146_routes[] = {
207         {
208                 .input = INPUT_CVBS_VI2B,
209                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
210         },
211         {
212                 .input = INPUT_SVIDEO_VI2C_VI1C,
213                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
214         },
215 };
216
217 static struct vpfe_subdev_info vpfe_sub_devs[] = {
218         {
219                 .name = "tvp5146",
220                 .grp_id = 0,
221                 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
222                 .inputs = tvp5146_inputs,
223                 .routes = tvp5146_routes,
224                 .can_route = 1,
225                 .ccdc_if_params = {
226                         .if_type = VPFE_BT656,
227                         .hdpol = VPFE_PINPOL_POSITIVE,
228                         .vdpol = VPFE_PINPOL_POSITIVE,
229                 },
230                 .board_info = {
231                         I2C_BOARD_INFO("tvp5146", 0x5d),
232                         .platform_data = &tvp5146_pdata,
233                 },
234         }
235 };
236
237 static struct vpfe_config vpfe_cfg = {
238         .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
239         .i2c_adapter_id = 1,
240         .sub_devs = vpfe_sub_devs,
241         .card_name = "DM355 EVM",
242         .ccdc = "DM355 CCDC",
243 };
244
245 /* venc standards timings */
246 static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = {
247         {
248                 .name           = "ntsc",
249                 .timings_type   = VPBE_ENC_STD,
250                 .std_id         = V4L2_STD_NTSC,
251                 .interlaced     = 1,
252                 .xres           = 720,
253                 .yres           = 480,
254                 .aspect         = {11, 10},
255                 .fps            = {30000, 1001},
256                 .left_margin    = 0x79,
257                 .upper_margin   = 0x10,
258         },
259         {
260                 .name           = "pal",
261                 .timings_type   = VPBE_ENC_STD,
262                 .std_id         = V4L2_STD_PAL,
263                 .interlaced     = 1,
264                 .xres           = 720,
265                 .yres           = 576,
266                 .aspect         = {54, 59},
267                 .fps            = {25, 1},
268                 .left_margin    = 0x7E,
269                 .upper_margin   = 0x16
270         },
271 };
272
273 #define VENC_STD_ALL    (V4L2_STD_NTSC | V4L2_STD_PAL)
274
275 /*
276  * The outputs available from VPBE + ecnoders. Keep the
277  * the order same as that of encoders. First those from venc followed by that
278  * from encoders. Index in the output refers to index on a particular encoder.
279  * Driver uses this index to pass it to encoder when it supports more than
280  * one output. Application uses index of the array to set an output.
281  */
282 static struct vpbe_output dm355evm_vpbe_outputs[] = {
283         {
284                 .output         = {
285                         .index          = 0,
286                         .name           = "Composite",
287                         .type           = V4L2_OUTPUT_TYPE_ANALOG,
288                         .std            = VENC_STD_ALL,
289                         .capabilities   = V4L2_OUT_CAP_STD,
290                 },
291                 .subdev_name    = DM355_VPBE_VENC_SUBDEV_NAME,
292                 .default_mode   = "ntsc",
293                 .num_modes      = ARRAY_SIZE(dm355evm_enc_preset_timing),
294                 .modes          = dm355evm_enc_preset_timing,
295                 .if_params      = MEDIA_BUS_FMT_FIXED,
296         },
297 };
298
299 static struct vpbe_config dm355evm_display_cfg = {
300         .module_name    = "dm355-vpbe-display",
301         .i2c_adapter_id = 1,
302         .osd            = {
303                 .module_name    = DM355_VPBE_OSD_SUBDEV_NAME,
304         },
305         .venc           = {
306                 .module_name    = DM355_VPBE_VENC_SUBDEV_NAME,
307         },
308         .num_outputs    = ARRAY_SIZE(dm355evm_vpbe_outputs),
309         .outputs        = dm355evm_vpbe_outputs,
310 };
311
312 static struct platform_device *davinci_evm_devices[] __initdata = {
313         &dm355evm_dm9000,
314         &davinci_nand_device,
315 };
316
317 static void __init dm355_evm_map_io(void)
318 {
319         dm355_init();
320 }
321
322 static int dm355evm_mmc_get_cd(int module)
323 {
324         if (!gpio_is_valid(dm355evm_mmc_gpios))
325                 return -ENXIO;
326         /* low == card present */
327         return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
328 }
329
330 static int dm355evm_mmc_get_ro(int module)
331 {
332         if (!gpio_is_valid(dm355evm_mmc_gpios))
333                 return -ENXIO;
334         /* high == card's write protect switch active */
335         return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
336 }
337
338 static struct davinci_mmc_config dm355evm_mmc_config = {
339         .get_cd         = dm355evm_mmc_get_cd,
340         .get_ro         = dm355evm_mmc_get_ro,
341         .wires          = 4,
342         .max_freq       = 50000000,
343         .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
344 };
345
346 /* Don't connect anything to J10 unless you're only using USB host
347  * mode *and* have to do so with some kind of gender-bender.  If
348  * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
349  * the ID pin won't need any help.
350  */
351 #define USB_ID_VALUE    1       /* ID pulled low */
352
353 static struct spi_eeprom at25640a = {
354         .byte_len       = SZ_64K / 8,
355         .name           = "at25640a",
356         .page_size      = 32,
357         .flags          = EE_ADDR2,
358 };
359
360 static struct spi_board_info dm355_evm_spi_info[] __initconst = {
361         {
362                 .modalias       = "at25",
363                 .platform_data  = &at25640a,
364                 .max_speed_hz   = 10 * 1000 * 1000,     /* at 3v3 */
365                 .bus_num        = 0,
366                 .chip_select    = 0,
367                 .mode           = SPI_MODE_0,
368         },
369 };
370
371 static __init void dm355_evm_init(void)
372 {
373         struct clk *aemif;
374         int ret;
375
376         ret = dm355_gpio_register();
377         if (ret)
378                 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
379
380         gpio_request(1, "dm9000");
381         gpio_direction_input(1);
382         dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
383
384         aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
385         if (!WARN(IS_ERR(aemif), "unable to get AEMIF clock\n"))
386                 clk_prepare_enable(aemif);
387
388         platform_add_devices(davinci_evm_devices,
389                              ARRAY_SIZE(davinci_evm_devices));
390         evm_init_i2c();
391         davinci_serial_init(dm355_serial_device);
392
393         /* NOTE:  NAND flash timings set by the UBL are slower than
394          * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
395          * but could be 0x0400008c for about 25% faster page reads.
396          */
397
398         gpio_request(2, "usb_id_toggle");
399         gpio_direction_output(2, USB_ID_VALUE);
400         /* irlml6401 switches over 1A in under 8 msec */
401         davinci_setup_usb(1000, 8);
402
403         davinci_setup_mmc(0, &dm355evm_mmc_config);
404         davinci_setup_mmc(1, &dm355evm_mmc_config);
405
406         dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg);
407
408         dm355_init_spi0(BIT(0), dm355_evm_spi_info,
409                         ARRAY_SIZE(dm355_evm_spi_info));
410
411         /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
412         dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN);
413 }
414
415 MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
416         .atag_offset  = 0x100,
417         .map_io       = dm355_evm_map_io,
418         .init_irq     = davinci_irq_init,
419         .init_time      = davinci_timer_init,
420         .init_machine = dm355_evm_init,
421         .init_late      = davinci_init_late,
422         .dma_zone_size  = SZ_128M,
423         .restart        = davinci_restart,
424 MACHINE_END