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,