2 * TI DaVinci DM646X EVM board
4 * Derived from: arch/arm/mach-davinci/board-evm.c
5 * Copyright (C) 2006 Texas Instruments.
7 * (C) 2007-2008, MontaVista Software, Inc.
9 * This file is licensed under the terms of the GNU General Public License
10 * version 2. This program is licensed "as is" without any warranty of any
11 * kind, whether express or implied.
15 /**************************************************************************
17 **************************************************************************/
19 #include <linux/kernel.h>
20 #include <linux/init.h>
21 #include <linux/leds.h>
22 #include <linux/gpio.h>
23 #include <linux/platform_device.h>
24 #include <linux/i2c.h>
25 #include <linux/platform_data/at24.h>
26 #include <linux/platform_data/pcf857x.h>
27 #include <linux/platform_data/ti-aemif.h>
29 #include <media/i2c/tvp514x.h>
30 #include <media/i2c/adv7343.h>
32 #include <linux/mtd/mtd.h>
33 #include <linux/mtd/rawnand.h>
34 #include <linux/mtd/partitions.h>
35 #include <linux/clk.h>
36 #include <linux/export.h>
37 #include <linux/platform_data/gpio-davinci.h>
38 #include <linux/platform_data/i2c-davinci.h>
39 #include <linux/platform_data/mtd-davinci.h>
40 #include <linux/platform_data/mtd-davinci-aemif.h>
42 #include <asm/mach-types.h>
43 #include <asm/mach/arch.h>
45 #include <mach/common.h>
46 #include <mach/irqs.h>
47 #include <mach/serial.h>
51 #define NAND_BLOCK_SIZE SZ_128K
53 /* Note: We are setting first partition as 'bootloader' constituting UBL, U-Boot
54 * and U-Boot environment this avoids dependency on any particular combination
55 * of UBL, U-Boot or flashing tools etc.
57 static struct mtd_partition davinci_nand_partitions[] = {
59 /* UBL, U-Boot with environment */
61 .offset = MTDPART_OFS_APPEND,
62 .size = 16 * NAND_BLOCK_SIZE,
63 .mask_flags = MTD_WRITEABLE, /* force read-only */
66 .offset = MTDPART_OFS_APPEND,
71 .offset = MTDPART_OFS_APPEND,
72 .size = MTDPART_SIZ_FULL,
77 static struct davinci_aemif_timing dm6467tevm_nandflash_timing = {
87 static struct davinci_nand_pdata davinci_nand_data = {
91 .parts = davinci_nand_partitions,
92 .nr_parts = ARRAY_SIZE(davinci_nand_partitions),
93 .ecc_mode = NAND_ECC_HW,
98 static struct resource davinci_nand_resources[] = {
100 .start = DM646X_ASYNC_EMIF_CS2_SPACE_BASE,
101 .end = DM646X_ASYNC_EMIF_CS2_SPACE_BASE + SZ_32M - 1,
102 .flags = IORESOURCE_MEM,
104 .start = DM646X_ASYNC_EMIF_CONTROL_BASE,
105 .end = DM646X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
106 .flags = IORESOURCE_MEM,
110 static struct platform_device davinci_aemif_devices[] = {
112 .name = "davinci_nand",
114 .num_resources = ARRAY_SIZE(davinci_nand_resources),
115 .resource = davinci_nand_resources,
117 .platform_data = &davinci_nand_data,
122 static struct resource davinci_aemif_resources[] = {
124 .start = DM646X_ASYNC_EMIF_CONTROL_BASE,
125 .end = DM646X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
126 .flags = IORESOURCE_MEM,
130 static struct aemif_abus_data davinci_aemif_abus_data[] = {
136 static struct aemif_platform_data davinci_aemif_pdata = {
137 .abus_data = davinci_aemif_abus_data,
138 .num_abus_data = ARRAY_SIZE(davinci_aemif_abus_data),
139 .sub_devices = davinci_aemif_devices,
140 .num_sub_devices = ARRAY_SIZE(davinci_aemif_devices),
143 static struct platform_device davinci_aemif_device = {
147 .platform_data = &davinci_aemif_pdata,
149 .resource = davinci_aemif_resources,
150 .num_resources = ARRAY_SIZE(davinci_aemif_resources),
153 #define HAS_ATA (IS_ENABLED(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
154 IS_ENABLED(CONFIG_PATA_BK3710))
157 /* CPLD Register 0 bits to control ATA */
158 #define DM646X_EVM_ATA_RST BIT(0)
159 #define DM646X_EVM_ATA_PWD BIT(1)
161 /* CPLD Register 0 Client: used for I/O Control */
162 static int cpld_reg0_probe(struct i2c_client *client,
163 const struct i2c_device_id *id)
167 struct i2c_msg msg[2] = {
169 .addr = client->addr,
175 .addr = client->addr,
182 /* Clear ATA_RSTn and ATA_PWD bits to enable ATA operation. */
183 i2c_transfer(client->adapter, msg, 1);
184 data &= ~(DM646X_EVM_ATA_RST | DM646X_EVM_ATA_PWD);
185 i2c_transfer(client->adapter, msg + 1, 1);
191 static const struct i2c_device_id cpld_reg_ids[] = {
196 static struct i2c_driver dm6467evm_cpld_driver = {
197 .driver.name = "cpld_reg0",
198 .id_table = cpld_reg_ids,
199 .probe = cpld_reg0_probe,
204 static struct gpio_led evm_leds[] = {
205 { .name = "DS1", .active_low = 1, },
206 { .name = "DS2", .active_low = 1, },
207 { .name = "DS3", .active_low = 1, },
208 { .name = "DS4", .active_low = 1, },
211 static const struct gpio_led_platform_data evm_led_data = {
212 .num_leds = ARRAY_SIZE(evm_leds),
216 static struct platform_device *evm_led_dev;
218 static int evm_led_setup(struct i2c_client *client, int gpio,
219 unsigned int ngpio, void *c)
221 struct gpio_led *leds = evm_leds;
229 evm_led_dev = platform_device_alloc("leds-gpio", 0);
230 platform_device_add_data(evm_led_dev, &evm_led_data,
231 sizeof(evm_led_data));
233 evm_led_dev->dev.parent = &client->dev;
234 status = platform_device_add(evm_led_dev);
236 platform_device_put(evm_led_dev);
242 static int evm_led_teardown(struct i2c_client *client, int gpio,
243 unsigned ngpio, void *c)
246 platform_device_unregister(evm_led_dev);
252 static int evm_sw_gpio[4] = { -EINVAL, -EINVAL, -EINVAL, -EINVAL };
254 static int evm_sw_setup(struct i2c_client *client, int gpio,
255 unsigned ngpio, void *c)
261 for (i = 0; i < 4; ++i) {
262 snprintf(label, 10, "user_sw%d", i);
263 status = gpio_request(gpio, label);
266 evm_sw_gpio[i] = gpio++;
268 status = gpio_direction_input(evm_sw_gpio[i]);
270 gpio_free(evm_sw_gpio[i]);
271 evm_sw_gpio[i] = -EINVAL;
275 status = gpio_export(evm_sw_gpio[i], 0);
277 gpio_free(evm_sw_gpio[i]);
278 evm_sw_gpio[i] = -EINVAL;
284 for (i = 0; i < 4; ++i) {
285 if (evm_sw_gpio[i] != -EINVAL) {
286 gpio_free(evm_sw_gpio[i]);
287 evm_sw_gpio[i] = -EINVAL;
293 static int evm_sw_teardown(struct i2c_client *client, int gpio,
294 unsigned ngpio, void *c)
298 for (i = 0; i < 4; ++i) {
299 if (evm_sw_gpio[i] != -EINVAL) {
300 gpio_unexport(evm_sw_gpio[i]);
301 gpio_free(evm_sw_gpio[i]);
302 evm_sw_gpio[i] = -EINVAL;
308 static int evm_pcf_setup(struct i2c_client *client, int gpio,
309 unsigned int ngpio, void *c)
316 status = evm_sw_setup(client, gpio, 4, c);
320 return evm_led_setup(client, gpio+4, 4, c);
323 static int evm_pcf_teardown(struct i2c_client *client, int gpio,
324 unsigned int ngpio, void *c)
328 evm_sw_teardown(client, gpio, 4, c);
329 evm_led_teardown(client, gpio+4, 4, c);
334 static struct pcf857x_platform_data pcf_data = {
335 .gpio_base = DAVINCI_N_GPIO+1,
336 .setup = evm_pcf_setup,
337 .teardown = evm_pcf_teardown,
340 /* Most of this EEPROM is unused, but U-Boot uses some data:
341 * - 0x7f00, 6 bytes Ethernet Address
342 * - ... newer boards may have more
345 static struct at24_platform_data eeprom_info = {
346 .byte_len = (256*1024) / 8,
348 .flags = AT24_FLAG_ADDR16,
349 .setup = davinci_get_mac_addr,
350 .context = (void *)0x7f00,
354 static u8 dm646x_iis_serializer_direction[] = {
355 TX_MODE, RX_MODE, INACTIVE_MODE, INACTIVE_MODE,
358 static u8 dm646x_dit_serializer_direction[] = {
362 static struct snd_platform_data dm646x_evm_snd_data[] = {
364 .tx_dma_offset = 0x400,
365 .rx_dma_offset = 0x400,
366 .op_mode = DAVINCI_MCASP_IIS_MODE,
367 .num_serializer = ARRAY_SIZE(dm646x_iis_serializer_direction),
369 .serial_dir = dm646x_iis_serializer_direction,
370 .asp_chan_q = EVENTQ_0,
373 .tx_dma_offset = 0x400,
375 .op_mode = DAVINCI_MCASP_DIT_MODE,
376 .num_serializer = ARRAY_SIZE(dm646x_dit_serializer_direction),
378 .serial_dir = dm646x_dit_serializer_direction,
379 .asp_chan_q = EVENTQ_0,
384 static struct i2c_client *cpld_client;
386 static int cpld_video_probe(struct i2c_client *client,
387 const struct i2c_device_id *id)
389 cpld_client = client;
393 static int cpld_video_remove(struct i2c_client *client)
399 static const struct i2c_device_id cpld_video_id[] = {
404 static struct i2c_driver cpld_video_driver = {
406 .name = "cpld_video",
408 .probe = cpld_video_probe,
409 .remove = cpld_video_remove,
410 .id_table = cpld_video_id,
413 static void evm_init_cpld(void)
415 i2c_add_driver(&cpld_video_driver);
418 static struct i2c_board_info __initdata i2c_info[] = {
420 I2C_BOARD_INFO("24c256", 0x50),
421 .platform_data = &eeprom_info,
424 I2C_BOARD_INFO("pcf8574a", 0x38),
425 .platform_data = &pcf_data,
428 I2C_BOARD_INFO("cpld_reg0", 0x3a),
431 I2C_BOARD_INFO("tlv320aic33", 0x18),
434 I2C_BOARD_INFO("cpld_video", 0x3b),
438 static struct davinci_i2c_platform_data i2c_pdata = {
439 .bus_freq = 100 /* kHz */,
440 .bus_delay = 0 /* usec */,
443 #define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8))
444 #define VCH2CLK_SYSCLK8 (BIT(9))
445 #define VCH2CLK_AUXCLK (BIT(9) | BIT(8))
446 #define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12))
447 #define VCH3CLK_SYSCLK8 (BIT(13))
448 #define VCH3CLK_AUXCLK (BIT(14) | BIT(13))
450 #define VIDCH2CLK (BIT(10))
451 #define VIDCH3CLK (BIT(11))
452 #define VIDCH1CLK (BIT(4))
453 #define TVP7002_INPUT (BIT(4))
454 #define TVP5147_INPUT (~BIT(4))
455 #define VPIF_INPUT_ONE_CHANNEL (BIT(5))
456 #define VPIF_INPUT_TWO_CHANNEL (~BIT(5))
457 #define TVP5147_CH0 "tvp514x-0"
458 #define TVP5147_CH1 "tvp514x-1"
460 /* spin lock for updating above registers */
461 static spinlock_t vpif_reg_lock;
463 static int set_vpif_clock(int mux_mode, int hd)
473 /* disable the clock */
474 spin_lock_irqsave(&vpif_reg_lock, flags);
475 value = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS));
476 value |= (VIDCH3CLK | VIDCH2CLK);
477 __raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS));
478 spin_unlock_irqrestore(&vpif_reg_lock, flags);
480 val = i2c_smbus_read_byte(cpld_client);
489 err = i2c_smbus_write_byte(cpld_client, val);
493 value = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL));
494 value &= ~(VCH2CLK_MASK);
495 value &= ~(VCH3CLK_MASK);
498 value |= (VCH2CLK_SYSCLK8 | VCH3CLK_SYSCLK8);
500 value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK);
502 __raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL));
504 spin_lock_irqsave(&vpif_reg_lock, flags);
505 value = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS));
506 /* enable the clock */
507 value &= ~(VIDCH3CLK | VIDCH2CLK);
508 __raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS));
509 spin_unlock_irqrestore(&vpif_reg_lock, flags);
514 static struct vpif_subdev_info dm646x_vpif_subdev[] = {
518 I2C_BOARD_INFO("adv7343", 0x2a),
524 I2C_BOARD_INFO("ths7303", 0x2c),
529 static const struct vpif_output dm6467_ch0_outputs[] = {
534 .type = V4L2_OUTPUT_TYPE_ANALOG,
535 .capabilities = V4L2_OUT_CAP_STD,
538 .subdev_name = "adv7343",
539 .output_route = ADV7343_COMPOSITE_ID,
545 .type = V4L2_OUTPUT_TYPE_ANALOG,
546 .capabilities = V4L2_OUT_CAP_DV_TIMINGS,
548 .subdev_name = "adv7343",
549 .output_route = ADV7343_COMPONENT_ID,
555 .type = V4L2_OUTPUT_TYPE_ANALOG,
556 .capabilities = V4L2_OUT_CAP_STD,
559 .subdev_name = "adv7343",
560 .output_route = ADV7343_SVIDEO_ID,
564 static struct vpif_display_config dm646x_vpif_display_config = {
565 .set_clock = set_vpif_clock,
566 .subdevinfo = dm646x_vpif_subdev,
567 .subdev_count = ARRAY_SIZE(dm646x_vpif_subdev),
570 .outputs = dm6467_ch0_outputs,
571 .output_count = ARRAY_SIZE(dm6467_ch0_outputs),
573 .card_name = "DM646x EVM Video Display",
577 * setup_vpif_input_path()
578 * @channel: channel id (0 - CH0, 1 - CH1)
579 * @sub_dev_name: ptr sub device name
581 * This will set vpif input to capture data from tvp514x or
584 static int setup_vpif_input_path(int channel, const char *sub_dev_name)
589 /* for channel 1, we don't do anything */
596 val = i2c_smbus_read_byte(cpld_client);
600 if (!strcmp(sub_dev_name, TVP5147_CH0) ||
601 !strcmp(sub_dev_name, TVP5147_CH1))
602 val &= TVP5147_INPUT;
604 val |= TVP7002_INPUT;
606 err = i2c_smbus_write_byte(cpld_client, val);
613 * setup_vpif_input_channel_mode()
614 * @mux_mode: mux mode. 0 - 1 channel or (1) - 2 channel
616 * This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147)
618 static int setup_vpif_input_channel_mode(int mux_mode)
628 val = i2c_smbus_read_byte(cpld_client);
632 spin_lock_irqsave(&vpif_reg_lock, flags);
633 value = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL));
635 val &= VPIF_INPUT_TWO_CHANNEL;
638 val |= VPIF_INPUT_ONE_CHANNEL;
641 __raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL));
642 spin_unlock_irqrestore(&vpif_reg_lock, flags);
644 err = i2c_smbus_write_byte(cpld_client, val);
651 static struct tvp514x_platform_data tvp5146_pdata = {
657 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
659 static struct vpif_subdev_info vpif_capture_sdev_info[] = {
663 I2C_BOARD_INFO("tvp5146", 0x5d),
664 .platform_data = &tvp5146_pdata,
670 I2C_BOARD_INFO("tvp5146", 0x5c),
671 .platform_data = &tvp5146_pdata,
676 static struct vpif_input dm6467_ch0_inputs[] = {
681 .type = V4L2_INPUT_TYPE_CAMERA,
682 .capabilities = V4L2_IN_CAP_STD,
683 .std = TVP514X_STD_ALL,
685 .subdev_name = TVP5147_CH0,
686 .input_route = INPUT_CVBS_VI2B,
687 .output_route = OUTPUT_10BIT_422_EMBEDDED_SYNC,
691 static struct vpif_input dm6467_ch1_inputs[] = {
696 .type = V4L2_INPUT_TYPE_CAMERA,
697 .capabilities = V4L2_IN_CAP_STD,
698 .std = TVP514X_STD_ALL,
700 .subdev_name = TVP5147_CH1,
701 .input_route = INPUT_SVIDEO_VI2C_VI1C,
702 .output_route = OUTPUT_10BIT_422_EMBEDDED_SYNC,
706 static struct vpif_capture_config dm646x_vpif_capture_cfg = {
707 .setup_input_path = setup_vpif_input_path,
708 .setup_input_channel_mode = setup_vpif_input_channel_mode,
709 .subdev_info = vpif_capture_sdev_info,
710 .subdev_count = ARRAY_SIZE(vpif_capture_sdev_info),
713 .inputs = dm6467_ch0_inputs,
714 .input_count = ARRAY_SIZE(dm6467_ch0_inputs),
716 .if_type = VPIF_IF_BT656,
723 .inputs = dm6467_ch1_inputs,
724 .input_count = ARRAY_SIZE(dm6467_ch1_inputs),
726 .if_type = VPIF_IF_BT656,
732 .card_name = "DM646x EVM Video Capture",
735 static void __init evm_init_video(void)
737 spin_lock_init(&vpif_reg_lock);
739 dm646x_setup_vpif(&dm646x_vpif_display_config,
740 &dm646x_vpif_capture_cfg);
743 static void __init evm_init_i2c(void)
745 davinci_init_i2c(&i2c_pdata);
746 i2c_add_driver(&dm6467evm_cpld_driver);
747 i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
753 #define DM646X_REF_FREQ 27000000
754 #define DM646X_AUX_FREQ 24000000
755 #define DM6467T_EVM_REF_FREQ 33000000
757 static void __init davinci_map_io(void)
762 static void __init dm646x_evm_init_time(void)
764 dm646x_init_time(DM646X_REF_FREQ, DM646X_AUX_FREQ);
767 static void __init dm6467t_evm_init_time(void)
769 dm646x_init_time(DM6467T_EVM_REF_FREQ, DM646X_AUX_FREQ);
772 #define DM646X_EVM_PHY_ID "davinci_mdio-0:01"
774 * The following EDMA channels/slots are not being used by drivers (for
775 * example: Timer, GPIO, UART events etc) on dm646x, hence they are being
776 * reserved for codecs on the DSP side.
778 static const s16 dm646x_dma_rsv_chans[][2] = {
779 /* (offset, number) */
788 static const s16 dm646x_dma_rsv_slots[][2] = {
789 /* (offset, number) */
799 static struct edma_rsv_info dm646x_edma_rsv[] = {
801 .rsv_chans = dm646x_dma_rsv_chans,
802 .rsv_slots = dm646x_dma_rsv_slots,
806 static __init void evm_init(void)
809 struct davinci_soc_info *soc_info = &davinci_soc_info;
811 dm646x_register_clocks();
813 ret = dm646x_gpio_register();
815 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
821 davinci_serial_init(dm646x_serial_device);
822 dm646x_init_mcasp0(&dm646x_evm_snd_data[0]);
823 dm646x_init_mcasp1(&dm646x_evm_snd_data[1]);
825 if (machine_is_davinci_dm6467tevm())
826 davinci_nand_data.timing = &dm6467tevm_nandflash_timing;
828 if (platform_device_register(&davinci_aemif_device))
829 pr_warn("%s: Cannot register AEMIF device.\n", __func__);
831 dm646x_init_edma(dm646x_edma_rsv);
836 soc_info->emac_pdata->phy_id = DM646X_EVM_PHY_ID;
839 MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM")
840 .atag_offset = 0x100,
841 .map_io = davinci_map_io,
842 .init_irq = davinci_irq_init,
843 .init_time = dm646x_evm_init_time,
844 .init_machine = evm_init,
845 .init_late = davinci_init_late,
846 .dma_zone_size = SZ_128M,
849 MACHINE_START(DAVINCI_DM6467TEVM, "DaVinci DM6467T EVM")
850 .atag_offset = 0x100,
851 .map_io = davinci_map_io,
852 .init_irq = davinci_irq_init,
853 .init_time = dm6467t_evm_init_time,
854 .init_machine = evm_init,
855 .init_late = davinci_init_late,
856 .dma_zone_size = SZ_128M,