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/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
46static 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
78static 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
87static 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
99static 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
111static 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
118static struct snd_platform_data dm355_evm_snd_data;
119
120static int dm355evm_mmc_gpios = -EINVAL;
121
122static void dm355evm_mmcsd_gpios(unsigned gpio)
123{
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");
128
129	/* we "know" these are input-only so we don't
130	 * need to call gpio_direction_input()
131	 */
132
133	dm355evm_mmc_gpios = gpio;
134}
135
136static struct i2c_board_info dm355evm_i2c_info[] = {
137	{	I2C_BOARD_INFO("dm355evm_msp", 0x25),
138		.platform_data = dm355evm_mmcsd_gpios,
139	},
140	/* { plus irq  }, */
141	{ I2C_BOARD_INFO("tlv320aic33", 0x1b), },
142};
143
144static void __init evm_init_i2c(void)
145{
146	davinci_init_i2c(&i2c_pdata);
147
148	gpio_request(5, "dm355evm_msp");
149	gpio_direction_input(5);
150	dm355evm_i2c_info[0].irq = gpio_to_irq(5);
151
152	i2c_register_board_info(1, dm355evm_i2c_info,
153			ARRAY_SIZE(dm355evm_i2c_info));
154}
155
156static struct resource dm355evm_dm9000_rsrc[] = {
157	{
158		/* addr */
159		.start	= 0x04014000,
160		.end	= 0x04014001,
161		.flags	= IORESOURCE_MEM,
162	}, {
163		/* data */
164		.start	= 0x04014002,
165		.end	= 0x04014003,
166		.flags	= IORESOURCE_MEM,
167	}, {
168		.flags	= IORESOURCE_IRQ
169			| IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
170	},
171};
172
173static struct platform_device dm355evm_dm9000 = {
174	.name		= "dm9000",
175	.id		= -1,
176	.resource	= dm355evm_dm9000_rsrc,
177	.num_resources	= ARRAY_SIZE(dm355evm_dm9000_rsrc),
178};
179
180static struct tvp514x_platform_data tvp5146_pdata = {
181	.clk_polarity = 0,
182	.hs_polarity = 1,
183	.vs_polarity = 1
184};
185
186#define TVP514X_STD_ALL	(V4L2_STD_NTSC | V4L2_STD_PAL)
187/* Inputs available at the TVP5146 */
188static struct v4l2_input tvp5146_inputs[] = {
189	{
190		.index = 0,
191		.name = "Composite",
192		.type = V4L2_INPUT_TYPE_CAMERA,
193		.std = TVP514X_STD_ALL,
194	},
195	{
196		.index = 1,
197		.name = "S-Video",
198		.type = V4L2_INPUT_TYPE_CAMERA,
199		.std = TVP514X_STD_ALL,
200	},
201};
202
203/*
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
207 */
208static struct vpfe_route tvp5146_routes[] = {
209	{
210		.input = INPUT_CVBS_VI2B,
211		.output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
212	},
213	{
214		.input = INPUT_SVIDEO_VI2C_VI1C,
215		.output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
216	},
217};
218
219static struct vpfe_subdev_info vpfe_sub_devs[] = {
220	{
221		.name = "tvp5146",
222		.grp_id = 0,
223		.num_inputs = ARRAY_SIZE(tvp5146_inputs),
224		.inputs = tvp5146_inputs,
225		.routes = tvp5146_routes,
226		.can_route = 1,
227		.ccdc_if_params = {
228			.if_type = VPFE_BT656,
229			.hdpol = VPFE_PINPOL_POSITIVE,
230			.vdpol = VPFE_PINPOL_POSITIVE,
231		},
232		.board_info = {
233			I2C_BOARD_INFO("tvp5146", 0x5d),
234			.platform_data = &tvp5146_pdata,
235		},
236	}
237};
238
239static struct vpfe_config vpfe_cfg = {
240	.num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
241	.i2c_adapter_id = 1,
242	.sub_devs = vpfe_sub_devs,
243	.card_name = "DM355 EVM",
244	.ccdc = "DM355 CCDC",
245};
246
247/* venc standards timings */
248static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = {
249	{
250		.name		= "ntsc",
251		.timings_type	= VPBE_ENC_STD,
252		.std_id		= V4L2_STD_NTSC,
253		.interlaced	= 1,
254		.xres		= 720,
255		.yres		= 480,
256		.aspect		= {11, 10},
257		.fps		= {30000, 1001},
258		.left_margin	= 0x79,
259		.upper_margin	= 0x10,
260	},
261	{
262		.name		= "pal",
263		.timings_type	= VPBE_ENC_STD,
264		.std_id		= V4L2_STD_PAL,
265		.interlaced	= 1,
266		.xres		= 720,
267		.yres		= 576,
268		.aspect		= {54, 59},
269		.fps		= {25, 1},
270		.left_margin	= 0x7E,
271		.upper_margin	= 0x16
272	},
273};
274
275#define VENC_STD_ALL	(V4L2_STD_NTSC | V4L2_STD_PAL)
276
277/*
278 * The outputs available from VPBE + ecnoders. Keep the
279 * the order same as that of encoders. First those from venc followed by that
280 * from encoders. Index in the output refers to index on a particular encoder.
281 * Driver uses this index to pass it to encoder when it supports more than
282 * one output. Application uses index of the array to set an output.
283 */
284static struct vpbe_output dm355evm_vpbe_outputs[] = {
285	{
286		.output		= {
287			.index		= 0,
288			.name		= "Composite",
289			.type		= V4L2_OUTPUT_TYPE_ANALOG,
290			.std		= VENC_STD_ALL,
291			.capabilities	= V4L2_OUT_CAP_STD,
292		},
293		.subdev_name	= DM355_VPBE_VENC_SUBDEV_NAME,
294		.default_mode	= "ntsc",
295		.num_modes	= ARRAY_SIZE(dm355evm_enc_preset_timing),
296		.modes		= dm355evm_enc_preset_timing,
297		.if_params	= MEDIA_BUS_FMT_FIXED,
298	},
299};
300
301static struct vpbe_config dm355evm_display_cfg = {
302	.module_name	= "dm355-vpbe-display",
303	.i2c_adapter_id	= 1,
304	.osd		= {
305		.module_name	= DM355_VPBE_OSD_SUBDEV_NAME,
306	},
307	.venc		= {
308		.module_name	= DM355_VPBE_VENC_SUBDEV_NAME,
309	},
310	.num_outputs	= ARRAY_SIZE(dm355evm_vpbe_outputs),
311	.outputs	= dm355evm_vpbe_outputs,
312};
313
314static struct platform_device *davinci_evm_devices[] __initdata = {
315	&dm355evm_dm9000,
316	&davinci_nand_device,
317};
318
319static void __init dm355_evm_map_io(void)
320{
321	dm355_init();
322}
323
324static int dm355evm_mmc_get_cd(int module)
325{
326	if (!gpio_is_valid(dm355evm_mmc_gpios))
327		return -ENXIO;
328	/* low == card present */
329	return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
330}
331
332static int dm355evm_mmc_get_ro(int module)
333{
334	if (!gpio_is_valid(dm355evm_mmc_gpios))
335		return -ENXIO;
336	/* high == card's write protect switch active */
337	return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
338}
339
340static struct davinci_mmc_config dm355evm_mmc_config = {
341	.get_cd		= dm355evm_mmc_get_cd,
342	.get_ro		= dm355evm_mmc_get_ro,
343	.wires		= 4,
344	.max_freq       = 50000000,
345	.caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
346};
347
348/* Don't connect anything to J10 unless you're only using USB host
349 * mode *and* have to do so with some kind of gender-bender.  If
350 * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
351 * the ID pin won't need any help.
352 */
353#define USB_ID_VALUE	1	/* ID pulled low */
354
355static struct spi_eeprom at25640a = {
356	.byte_len	= SZ_64K / 8,
357	.name		= "at25640a",
358	.page_size	= 32,
359	.flags		= EE_ADDR2,
360};
361
362static struct spi_board_info dm355_evm_spi_info[] __initconst = {
363	{
364		.modalias	= "at25",
365		.platform_data	= &at25640a,
366		.max_speed_hz	= 10 * 1000 * 1000,	/* at 3v3 */
367		.bus_num	= 0,
368		.chip_select	= 0,
369		.mode		= SPI_MODE_0,
370	},
371};
372
373static __init void dm355_evm_init(void)
374{
375	struct clk *aemif;
376	int ret;
377
378	ret = dm355_gpio_register();
379	if (ret)
380		pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
381
382	gpio_request(1, "dm9000");
383	gpio_direction_input(1);
384	dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
385
386	aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
387	if (IS_ERR(aemif))
388		WARN("%s: unable to get AEMIF clock\n", __func__);
389	else
390		clk_prepare_enable(aemif);
391
392	platform_add_devices(davinci_evm_devices,
393			     ARRAY_SIZE(davinci_evm_devices));
394	evm_init_i2c();
395	davinci_serial_init(dm355_serial_device);
396
397	/* NOTE:  NAND flash timings set by the UBL are slower than
398	 * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
399	 * but could be 0x0400008c for about 25% faster page reads.
400	 */
401
402	gpio_request(2, "usb_id_toggle");
403	gpio_direction_output(2, USB_ID_VALUE);
404	/* irlml6401 switches over 1A in under 8 msec */
405	davinci_setup_usb(1000, 8);
406
407	davinci_setup_mmc(0, &dm355evm_mmc_config);
408	davinci_setup_mmc(1, &dm355evm_mmc_config);
409
410	dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg);
411
412	dm355_init_spi0(BIT(0), dm355_evm_spi_info,
413			ARRAY_SIZE(dm355_evm_spi_info));
414
415	/* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
416	dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN, &dm355_evm_snd_data);
417}
418
419MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
420	.atag_offset  = 0x100,
421	.map_io	      = dm355_evm_map_io,
422	.init_irq     = davinci_irq_init,
423	.init_time	= davinci_timer_init,
424	.init_machine = dm355_evm_init,
425	.init_late	= davinci_init_late,
426	.dma_zone_size	= SZ_128M,
427	.restart	= davinci_restart,
428MACHINE_END
429