2 * TI DaVinci EVM board support
4 * Author: Kevin Hilman, Deep Root Systems, LLC
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
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>
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
34 #include <mach/serial.h>
35 #include <mach/common.h>
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
44 #define NAND_BLOCK_SIZE SZ_128K
46 static struct mtd_partition davinci_nand_partitions
[] = {
48 /* UBL (a few copies) plus U-Boot */
51 .size
= 15 * NAND_BLOCK_SIZE
,
52 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
54 /* U-Boot environment */
56 .offset
= MTDPART_OFS_APPEND
,
57 .size
= 1 * NAND_BLOCK_SIZE
,
61 .offset
= MTDPART_OFS_APPEND
,
65 .name
= "filesystem1",
66 .offset
= MTDPART_OFS_APPEND
,
70 .name
= "filesystem2",
71 .offset
= MTDPART_OFS_APPEND
,
72 .size
= MTDPART_SIZ_FULL
,
75 /* two blocks with bad block table (and mirror) at the end */
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
,
87 static struct resource davinci_nand_resources
[] = {
89 .start
= DM355_ASYNC_EMIF_DATA_CE0_BASE
,
90 .end
= DM355_ASYNC_EMIF_DATA_CE0_BASE
+ SZ_32M
- 1,
91 .flags
= IORESOURCE_MEM
,
93 .start
= DM355_ASYNC_EMIF_CONTROL_BASE
,
94 .end
= DM355_ASYNC_EMIF_CONTROL_BASE
+ SZ_4K
- 1,
95 .flags
= IORESOURCE_MEM
,
99 static struct platform_device davinci_nand_device
= {
100 .name
= "davinci_nand",
103 .num_resources
= ARRAY_SIZE(davinci_nand_resources
),
104 .resource
= davinci_nand_resources
,
107 .platform_data
= &davinci_nand_data
,
111 static struct davinci_i2c_platform_data i2c_pdata
= {
112 .bus_freq
= 400 /* kHz */,
113 .bus_delay
= 0 /* usec */,
118 static int dm355evm_mmc_gpios
= -EINVAL
;
120 static void dm355evm_mmcsd_gpios(unsigned gpio
)
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");
127 /* we "know" these are input-only so we don't
128 * need to call gpio_direction_input()
131 dm355evm_mmc_gpios
= gpio
;
134 static struct i2c_board_info dm355evm_i2c_info
[] = {
135 { I2C_BOARD_INFO("dm355evm_msp", 0x25),
136 .platform_data
= dm355evm_mmcsd_gpios
,
139 { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
142 static void __init
evm_init_i2c(void)
144 davinci_init_i2c(&i2c_pdata
);
146 gpio_request(5, "dm355evm_msp");
147 gpio_direction_input(5);
148 dm355evm_i2c_info
[0].irq
= gpio_to_irq(5);
150 i2c_register_board_info(1, dm355evm_i2c_info
,
151 ARRAY_SIZE(dm355evm_i2c_info
));
154 static struct resource dm355evm_dm9000_rsrc
[] = {
159 .flags
= IORESOURCE_MEM
,
164 .flags
= IORESOURCE_MEM
,
166 .flags
= IORESOURCE_IRQ
167 | IORESOURCE_IRQ_HIGHEDGE
/* rising (active high) */,
171 static struct platform_device dm355evm_dm9000
= {
174 .resource
= dm355evm_dm9000_rsrc
,
175 .num_resources
= ARRAY_SIZE(dm355evm_dm9000_rsrc
),
178 static struct tvp514x_platform_data tvp5146_pdata
= {
184 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
185 /* Inputs available at the TVP5146 */
186 static struct v4l2_input tvp5146_inputs
[] = {
190 .type
= V4L2_INPUT_TYPE_CAMERA
,
191 .std
= TVP514X_STD_ALL
,
196 .type
= V4L2_INPUT_TYPE_CAMERA
,
197 .std
= TVP514X_STD_ALL
,
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
206 static struct vpfe_route tvp5146_routes
[] = {
208 .input
= INPUT_CVBS_VI2B
,
209 .output
= OUTPUT_10BIT_422_EMBEDDED_SYNC
,
212 .input
= INPUT_SVIDEO_VI2C_VI1C
,
213 .output
= OUTPUT_10BIT_422_EMBEDDED_SYNC
,
217 static struct vpfe_subdev_info vpfe_sub_devs
[] = {
221 .num_inputs
= ARRAY_SIZE(tvp5146_inputs
),
222 .inputs
= tvp5146_inputs
,
223 .routes
= tvp5146_routes
,
226 .if_type
= VPFE_BT656
,
227 .hdpol
= VPFE_PINPOL_POSITIVE
,
228 .vdpol
= VPFE_PINPOL_POSITIVE
,
231 I2C_BOARD_INFO("tvp5146", 0x5d),
232 .platform_data
= &tvp5146_pdata
,
237 static struct vpfe_config vpfe_cfg
= {
238 .num_subdevs
= ARRAY_SIZE(vpfe_sub_devs
),
240 .sub_devs
= vpfe_sub_devs
,
241 .card_name
= "DM355 EVM",
242 .ccdc
= "DM355 CCDC",
245 /* venc standards timings */
246 static struct vpbe_enc_mode_info dm355evm_enc_preset_timing
[] = {
249 .timings_type
= VPBE_ENC_STD
,
250 .std_id
= V4L2_STD_NTSC
,
255 .fps
= {30000, 1001},
257 .upper_margin
= 0x10,
261 .timings_type
= VPBE_ENC_STD
,
262 .std_id
= V4L2_STD_PAL
,
273 #define VENC_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
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.
282 static struct vpbe_output dm355evm_vpbe_outputs
[] = {
287 .type
= V4L2_OUTPUT_TYPE_ANALOG
,
289 .capabilities
= V4L2_OUT_CAP_STD
,
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
,
299 static struct vpbe_config dm355evm_display_cfg
= {
300 .module_name
= "dm355-vpbe-display",
303 .module_name
= DM355_VPBE_OSD_SUBDEV_NAME
,
306 .module_name
= DM355_VPBE_VENC_SUBDEV_NAME
,
308 .num_outputs
= ARRAY_SIZE(dm355evm_vpbe_outputs
),
309 .outputs
= dm355evm_vpbe_outputs
,
312 static struct platform_device
*davinci_evm_devices
[] __initdata
= {
314 &davinci_nand_device
,
317 static void __init
dm355_evm_map_io(void)
322 static int dm355evm_mmc_get_cd(int module
)
324 if (!gpio_is_valid(dm355evm_mmc_gpios
))
326 /* low == card present */
327 return !gpio_get_value_cansleep(dm355evm_mmc_gpios
+ 2 * module
+ 1);
330 static int dm355evm_mmc_get_ro(int module
)
332 if (!gpio_is_valid(dm355evm_mmc_gpios
))
334 /* high == card's write protect switch active */
335 return gpio_get_value_cansleep(dm355evm_mmc_gpios
+ 2 * module
+ 0);
338 static struct davinci_mmc_config dm355evm_mmc_config
= {
339 .get_cd
= dm355evm_mmc_get_cd
,
340 .get_ro
= dm355evm_mmc_get_ro
,
342 .max_freq
= 50000000,
343 .caps
= MMC_CAP_MMC_HIGHSPEED
| MMC_CAP_SD_HIGHSPEED
,
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.
351 #define USB_ID_VALUE 1 /* ID pulled low */
353 static struct spi_eeprom at25640a
= {
354 .byte_len
= SZ_64K
/ 8,
360 static struct spi_board_info dm355_evm_spi_info
[] __initconst
= {
363 .platform_data
= &at25640a
,
364 .max_speed_hz
= 10 * 1000 * 1000, /* at 3v3 */
371 static __init
void dm355_evm_init(void)
376 ret
= dm355_gpio_register();
378 pr_warn("%s: GPIO init failed: %d\n", __func__
, ret
);
380 gpio_request(1, "dm9000");
381 gpio_direction_input(1);
382 dm355evm_dm9000_rsrc
[2].start
= gpio_to_irq(1);
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
);
388 platform_add_devices(davinci_evm_devices
,
389 ARRAY_SIZE(davinci_evm_devices
));
391 davinci_serial_init(dm355_serial_device
);
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.
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);
403 davinci_setup_mmc(0, &dm355evm_mmc_config
);
404 davinci_setup_mmc(1, &dm355evm_mmc_config
);
406 dm355_init_video(&vpfe_cfg
, &dm355evm_display_cfg
);
408 dm355_init_spi0(BIT(0), dm355_evm_spi_info
,
409 ARRAY_SIZE(dm355_evm_spi_info
));
411 /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
412 dm355_init_asp1(ASP1_TX_EVT_EN
| ASP1_RX_EVT_EN
);
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
,