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 <linux/platform_data/i2c-davinci.h>
30 #include <mach/serial.h>
31 #include <linux/platform_data/mtd-davinci.h>
32 #include <linux/platform_data/mmc-davinci.h>
33 #include <linux/platform_data/usb-davinci.h>
37 /* NOTE: this is geared for the standard config, with a socketed
38 * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors. If you
39 * swap chips, maybe with a different block size, partitioning may
42 #define NAND_BLOCK_SIZE SZ_128K
44 static struct mtd_partition davinci_nand_partitions[] = {
46 /* UBL (a few copies) plus U-Boot */
49 .size = 15 * NAND_BLOCK_SIZE,
50 .mask_flags = MTD_WRITEABLE, /* force read-only */
52 /* U-Boot environment */
54 .offset = MTDPART_OFS_APPEND,
55 .size = 1 * NAND_BLOCK_SIZE,
59 .offset = MTDPART_OFS_APPEND,
63 .name = "filesystem1",
64 .offset = MTDPART_OFS_APPEND,
68 .name = "filesystem2",
69 .offset = MTDPART_OFS_APPEND,
70 .size = MTDPART_SIZ_FULL,
73 /* two blocks with bad block table (and mirror) at the end */
76 static struct davinci_nand_pdata davinci_nand_data = {
77 .mask_chipsel = BIT(14),
78 .parts = davinci_nand_partitions,
79 .nr_parts = ARRAY_SIZE(davinci_nand_partitions),
80 .ecc_mode = NAND_ECC_HW,
81 .bbt_options = NAND_BBT_USE_FLASH,
85 static struct resource davinci_nand_resources[] = {
87 .start = DM355_ASYNC_EMIF_DATA_CE0_BASE,
88 .end = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
89 .flags = IORESOURCE_MEM,
91 .start = DM355_ASYNC_EMIF_CONTROL_BASE,
92 .end = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
93 .flags = IORESOURCE_MEM,
97 static struct platform_device davinci_nand_device = {
98 .name = "davinci_nand",
101 .num_resources = ARRAY_SIZE(davinci_nand_resources),
102 .resource = davinci_nand_resources,
105 .platform_data = &davinci_nand_data,
109 static struct davinci_i2c_platform_data i2c_pdata = {
110 .bus_freq = 400 /* kHz */,
111 .bus_delay = 0 /* usec */,
116 static struct snd_platform_data dm355_evm_snd_data;
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 static struct platform_device *davinci_evm_devices[] __initdata = {
247 &davinci_nand_device,
250 static struct davinci_uart_config uart_config __initdata = {
251 .enabled_uarts = (1 << 0),
254 static void __init dm355_evm_map_io(void)
256 /* setup input configuration for VPFE input devices */
257 dm355_set_vpfe_config(&vpfe_cfg);
261 static int dm355evm_mmc_get_cd(int module)
263 if (!gpio_is_valid(dm355evm_mmc_gpios))
265 /* low == card present */
266 return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
269 static int dm355evm_mmc_get_ro(int module)
271 if (!gpio_is_valid(dm355evm_mmc_gpios))
273 /* high == card's write protect switch active */
274 return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
277 static struct davinci_mmc_config dm355evm_mmc_config = {
278 .get_cd = dm355evm_mmc_get_cd,
279 .get_ro = dm355evm_mmc_get_ro,
281 .max_freq = 50000000,
282 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
283 .version = MMC_CTLR_VERSION_1,
286 /* Don't connect anything to J10 unless you're only using USB host
287 * mode *and* have to do so with some kind of gender-bender. If
288 * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
289 * the ID pin won't need any help.
291 #ifdef CONFIG_USB_MUSB_PERIPHERAL
292 #define USB_ID_VALUE 0 /* ID pulled high; *should* float */
294 #define USB_ID_VALUE 1 /* ID pulled low */
297 static struct spi_eeprom at25640a = {
298 .byte_len = SZ_64K / 8,
304 static struct spi_board_info dm355_evm_spi_info[] __initconst = {
307 .platform_data = &at25640a,
308 .max_speed_hz = 10 * 1000 * 1000, /* at 3v3 */
315 static __init void dm355_evm_init(void)
319 gpio_request(1, "dm9000");
320 gpio_direction_input(1);
321 dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
323 aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
325 WARN("%s: unable to get AEMIF clock\n", __func__);
329 platform_add_devices(davinci_evm_devices,
330 ARRAY_SIZE(davinci_evm_devices));
332 davinci_serial_init(&uart_config);
334 /* NOTE: NAND flash timings set by the UBL are slower than
335 * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
336 * but could be 0x0400008c for about 25% faster page reads.
339 gpio_request(2, "usb_id_toggle");
340 gpio_direction_output(2, USB_ID_VALUE);
341 /* irlml6401 switches over 1A in under 8 msec */
342 davinci_setup_usb(1000, 8);
344 davinci_setup_mmc(0, &dm355evm_mmc_config);
345 davinci_setup_mmc(1, &dm355evm_mmc_config);
347 dm355_init_spi0(BIT(0), dm355_evm_spi_info,
348 ARRAY_SIZE(dm355_evm_spi_info));
350 /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
351 dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN, &dm355_evm_snd_data);
354 MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
355 .atag_offset = 0x100,
356 .map_io = dm355_evm_map_io,
357 .init_irq = davinci_irq_init,
358 .timer = &davinci_timer,
359 .init_machine = dm355_evm_init,
360 .init_late = davinci_init_late,
361 .dma_zone_size = SZ_128M,
362 .restart = davinci_restart,