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/tvp514x.h>
23 #include <linux/spi/spi.h>
24 #include <linux/spi/eeprom.h>
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
29 #include <mach/dm355.h>
31 #include <mach/serial.h>
32 #include <mach/nand.h>
36 #define DAVINCI_ASYNC_EMIF_CONTROL_BASE 0x01e10000
37 #define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE 0x02000000
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 .options
= NAND_USE_FLASH_BBT
,
87 static struct resource davinci_nand_resources
[] = {
89 .start
= DAVINCI_ASYNC_EMIF_DATA_CE0_BASE
,
90 .end
= DAVINCI_ASYNC_EMIF_DATA_CE0_BASE
+ SZ_32M
- 1,
91 .flags
= IORESOURCE_MEM
,
93 .start
= DAVINCI_ASYNC_EMIF_CONTROL_BASE
,
94 .end
= DAVINCI_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 struct snd_platform_data dm355_evm_snd_data
;
120 static int dm355evm_mmc_gpios
= -EINVAL
;
122 static void dm355evm_mmcsd_gpios(unsigned gpio
)
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");
129 /* we "know" these are input-only so we don't
130 * need to call gpio_direction_input()
133 dm355evm_mmc_gpios
= gpio
;
136 static struct i2c_board_info dm355evm_i2c_info
[] = {
137 { I2C_BOARD_INFO("dm355evm_msp", 0x25),
138 .platform_data
= dm355evm_mmcsd_gpios
,
141 { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
144 static void __init
evm_init_i2c(void)
146 davinci_init_i2c(&i2c_pdata
);
148 gpio_request(5, "dm355evm_msp");
149 gpio_direction_input(5);
150 dm355evm_i2c_info
[0].irq
= gpio_to_irq(5);
152 i2c_register_board_info(1, dm355evm_i2c_info
,
153 ARRAY_SIZE(dm355evm_i2c_info
));
156 static struct resource dm355evm_dm9000_rsrc
[] = {
161 .flags
= IORESOURCE_MEM
,
166 .flags
= IORESOURCE_MEM
,
168 .flags
= IORESOURCE_IRQ
169 | IORESOURCE_IRQ_HIGHEDGE
/* rising (active high) */,
173 static struct platform_device dm355evm_dm9000
= {
176 .resource
= dm355evm_dm9000_rsrc
,
177 .num_resources
= ARRAY_SIZE(dm355evm_dm9000_rsrc
),
180 static struct tvp514x_platform_data tvp5146_pdata
= {
186 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
187 /* Inputs available at the TVP5146 */
188 static struct v4l2_input tvp5146_inputs
[] = {
192 .type
= V4L2_INPUT_TYPE_CAMERA
,
193 .std
= TVP514X_STD_ALL
,
198 .type
= V4L2_INPUT_TYPE_CAMERA
,
199 .std
= TVP514X_STD_ALL
,
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
208 static struct vpfe_route tvp5146_routes
[] = {
210 .input
= INPUT_CVBS_VI2B
,
211 .output
= OUTPUT_10BIT_422_EMBEDDED_SYNC
,
214 .input
= INPUT_SVIDEO_VI2C_VI1C
,
215 .output
= OUTPUT_10BIT_422_EMBEDDED_SYNC
,
219 static struct vpfe_subdev_info vpfe_sub_devs
[] = {
223 .num_inputs
= ARRAY_SIZE(tvp5146_inputs
),
224 .inputs
= tvp5146_inputs
,
225 .routes
= tvp5146_routes
,
228 .if_type
= VPFE_BT656
,
229 .hdpol
= VPFE_PINPOL_POSITIVE
,
230 .vdpol
= VPFE_PINPOL_POSITIVE
,
233 I2C_BOARD_INFO("tvp5146", 0x5d),
234 .platform_data
= &tvp5146_pdata
,
239 static struct vpfe_config vpfe_cfg
= {
240 .num_subdevs
= ARRAY_SIZE(vpfe_sub_devs
),
242 .sub_devs
= vpfe_sub_devs
,
243 .card_name
= "DM355 EVM",
244 .ccdc
= "DM355 CCDC",
247 static struct platform_device
*davinci_evm_devices
[] __initdata
= {
249 &davinci_nand_device
,
252 static struct davinci_uart_config uart_config __initdata
= {
253 .enabled_uarts
= (1 << 0),
256 static void __init
dm355_evm_map_io(void)
258 /* setup input configuration for VPFE input devices */
259 dm355_set_vpfe_config(&vpfe_cfg
);
263 static int dm355evm_mmc_get_cd(int module
)
265 if (!gpio_is_valid(dm355evm_mmc_gpios
))
267 /* low == card present */
268 return !gpio_get_value_cansleep(dm355evm_mmc_gpios
+ 2 * module
+ 1);
271 static int dm355evm_mmc_get_ro(int module
)
273 if (!gpio_is_valid(dm355evm_mmc_gpios
))
275 /* high == card's write protect switch active */
276 return gpio_get_value_cansleep(dm355evm_mmc_gpios
+ 2 * module
+ 0);
279 static struct davinci_mmc_config dm355evm_mmc_config
= {
280 .get_cd
= dm355evm_mmc_get_cd
,
281 .get_ro
= dm355evm_mmc_get_ro
,
283 .max_freq
= 50000000,
284 .caps
= MMC_CAP_MMC_HIGHSPEED
| MMC_CAP_SD_HIGHSPEED
,
285 .version
= MMC_CTLR_VERSION_1
,
288 /* Don't connect anything to J10 unless you're only using USB host
289 * mode *and* have to do so with some kind of gender-bender. If
290 * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
291 * the ID pin won't need any help.
293 #ifdef CONFIG_USB_MUSB_PERIPHERAL
294 #define USB_ID_VALUE 0 /* ID pulled high; *should* float */
296 #define USB_ID_VALUE 1 /* ID pulled low */
299 static struct spi_eeprom at25640a
= {
300 .byte_len
= SZ_64K
/ 8,
306 static struct spi_board_info dm355_evm_spi_info
[] __initconst
= {
309 .platform_data
= &at25640a
,
310 .max_speed_hz
= 10 * 1000 * 1000, /* at 3v3 */
317 static __init
void dm355_evm_init(void)
321 gpio_request(1, "dm9000");
322 gpio_direction_input(1);
323 dm355evm_dm9000_rsrc
[2].start
= gpio_to_irq(1);
325 aemif
= clk_get(&dm355evm_dm9000
.dev
, "aemif");
327 WARN("%s: unable to get AEMIF clock\n", __func__
);
331 platform_add_devices(davinci_evm_devices
,
332 ARRAY_SIZE(davinci_evm_devices
));
334 davinci_serial_init(&uart_config
);
336 /* NOTE: NAND flash timings set by the UBL are slower than
337 * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
338 * but could be 0x0400008c for about 25% faster page reads.
341 gpio_request(2, "usb_id_toggle");
342 gpio_direction_output(2, USB_ID_VALUE
);
343 /* irlml6401 switches over 1A in under 8 msec */
344 davinci_setup_usb(1000, 8);
346 davinci_setup_mmc(0, &dm355evm_mmc_config
);
347 davinci_setup_mmc(1, &dm355evm_mmc_config
);
349 dm355_init_spi0(BIT(0), dm355_evm_spi_info
,
350 ARRAY_SIZE(dm355_evm_spi_info
));
352 /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
353 dm355_init_asp1(ASP1_TX_EVT_EN
| ASP1_RX_EVT_EN
, &dm355_evm_snd_data
);
356 static __init
void dm355_evm_irq_init(void)
361 MACHINE_START(DAVINCI_DM355_EVM
, "DaVinci DM355 EVM")
363 .io_pg_offst
= (__IO_ADDRESS(IO_PHYS
) >> 18) & 0xfffc,
364 .boot_params
= (0x80000100),
365 .map_io
= dm355_evm_map_io
,
366 .init_irq
= dm355_evm_irq_init
,
367 .timer
= &davinci_timer
,
368 .init_machine
= dm355_evm_init
,