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/property.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/nvmem-provider.h>
36 #include <linux/clk.h>
37 #include <linux/export.h>
38 #include <linux/platform_data/gpio-davinci.h>
39 #include <linux/platform_data/i2c-davinci.h>
40 #include <linux/platform_data/mtd-davinci.h>
41 #include <linux/platform_data/mtd-davinci-aemif.h>
43 #include <asm/mach-types.h>
44 #include <asm/mach/arch.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 .engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST,
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)
166 struct i2c_msg msg[2] = {
168 .addr = client->addr,
174 .addr = client->addr,
181 /* Clear ATA_RSTn and ATA_PWD bits to enable ATA operation. */
182 i2c_transfer(client->adapter, msg, 1);
183 data &= ~(DM646X_EVM_ATA_RST | DM646X_EVM_ATA_PWD);
184 i2c_transfer(client->adapter, msg + 1, 1);
190 static const struct i2c_device_id cpld_reg_ids[] = {
195 static struct i2c_driver dm6467evm_cpld_driver = {
196 .driver.name = "cpld_reg0",
197 .id_table = cpld_reg_ids,
198 .probe_new = cpld_reg0_probe,
203 static struct gpio_led evm_leds[] = {
204 { .name = "DS1", .active_low = 1, },
205 { .name = "DS2", .active_low = 1, },
206 { .name = "DS3", .active_low = 1, },
207 { .name = "DS4", .active_low = 1, },
210 static const struct gpio_led_platform_data evm_led_data = {
211 .num_leds = ARRAY_SIZE(evm_leds),
215 static struct platform_device *evm_led_dev;
217 static int evm_led_setup(struct i2c_client *client, int gpio,
218 unsigned int ngpio, void *c)
220 struct gpio_led *leds = evm_leds;
228 evm_led_dev = platform_device_alloc("leds-gpio", 0);
229 platform_device_add_data(evm_led_dev, &evm_led_data,
230 sizeof(evm_led_data));
232 evm_led_dev->dev.parent = &client->dev;
233 status = platform_device_add(evm_led_dev);
235 platform_device_put(evm_led_dev);
241 static int evm_led_teardown(struct i2c_client *client, int gpio,
242 unsigned ngpio, void *c)
245 platform_device_unregister(evm_led_dev);
251 static int evm_sw_gpio[4] = { -EINVAL, -EINVAL, -EINVAL, -EINVAL };
253 static int evm_sw_setup(struct i2c_client *client, int gpio,
254 unsigned ngpio, void *c)
260 for (i = 0; i < 4; ++i) {
261 snprintf(label, 10, "user_sw%d", i);
262 status = gpio_request(gpio, label);
265 evm_sw_gpio[i] = gpio++;
267 status = gpio_direction_input(evm_sw_gpio[i]);
271 status = gpio_export(evm_sw_gpio[i], 0);
278 for (i = 0; i < 4; ++i) {
279 if (evm_sw_gpio[i] != -EINVAL) {
280 gpio_free(evm_sw_gpio[i]);
281 evm_sw_gpio[i] = -EINVAL;
287 static int evm_sw_teardown(struct i2c_client *client, int gpio,
288 unsigned ngpio, void *c)
292 for (i = 0; i < 4; ++i) {
293 if (evm_sw_gpio[i] != -EINVAL) {
294 gpio_unexport(evm_sw_gpio[i]);
295 gpio_free(evm_sw_gpio[i]);
296 evm_sw_gpio[i] = -EINVAL;
302 static int evm_pcf_setup(struct i2c_client *client, int gpio,
303 unsigned int ngpio, void *c)
310 status = evm_sw_setup(client, gpio, 4, c);
314 return evm_led_setup(client, gpio+4, 4, c);
317 static void evm_pcf_teardown(struct i2c_client *client, int gpio,
318 unsigned int ngpio, void *c)
322 evm_sw_teardown(client, gpio, 4, c);
323 evm_led_teardown(client, gpio+4, 4, c);
326 static struct pcf857x_platform_data pcf_data = {
327 .gpio_base = DAVINCI_N_GPIO+1,
328 .setup = evm_pcf_setup,
329 .teardown = evm_pcf_teardown,
332 /* Most of this EEPROM is unused, but U-Boot uses some data:
333 * - 0x7f00, 6 bytes Ethernet Address
334 * - ... newer boards may have more
337 static struct nvmem_cell_info dm646x_evm_nvmem_cells[] = {
345 static struct nvmem_cell_table dm646x_evm_nvmem_cell_table = {
346 .nvmem_name = "1-00500",
347 .cells = dm646x_evm_nvmem_cells,
348 .ncells = ARRAY_SIZE(dm646x_evm_nvmem_cells),
351 static struct nvmem_cell_lookup dm646x_evm_nvmem_cell_lookup = {
352 .nvmem_name = "1-00500",
353 .cell_name = "macaddr",
354 .dev_id = "davinci_emac.1",
355 .con_id = "mac-address",
358 static const struct property_entry eeprom_properties[] = {
359 PROPERTY_ENTRY_U32("pagesize", 64),
363 static const struct software_node eeprom_node = {
364 .properties = eeprom_properties,
368 static u8 dm646x_iis_serializer_direction[] = {
369 TX_MODE, RX_MODE, INACTIVE_MODE, INACTIVE_MODE,
372 static u8 dm646x_dit_serializer_direction[] = {
376 static struct snd_platform_data dm646x_evm_snd_data[] = {
378 .tx_dma_offset = 0x400,
379 .rx_dma_offset = 0x400,
380 .op_mode = DAVINCI_MCASP_IIS_MODE,
381 .num_serializer = ARRAY_SIZE(dm646x_iis_serializer_direction),
383 .serial_dir = dm646x_iis_serializer_direction,
384 .asp_chan_q = EVENTQ_0,
387 .tx_dma_offset = 0x400,
389 .op_mode = DAVINCI_MCASP_DIT_MODE,
390 .num_serializer = ARRAY_SIZE(dm646x_dit_serializer_direction),
392 .serial_dir = dm646x_dit_serializer_direction,
393 .asp_chan_q = EVENTQ_0,
398 static struct i2c_client *cpld_client;
400 static int cpld_video_probe(struct i2c_client *client)
402 cpld_client = client;
406 static int cpld_video_remove(struct i2c_client *client)
412 static const struct i2c_device_id cpld_video_id[] = {
417 static struct i2c_driver cpld_video_driver = {
419 .name = "cpld_video",
421 .probe_new = cpld_video_probe,
422 .remove = cpld_video_remove,
423 .id_table = cpld_video_id,
426 static void evm_init_cpld(void)
428 i2c_add_driver(&cpld_video_driver);
431 static struct i2c_board_info __initdata i2c_info[] = {
433 I2C_BOARD_INFO("24c256", 0x50),
434 .swnode = &eeprom_node,
437 I2C_BOARD_INFO("pcf8574a", 0x38),
438 .platform_data = &pcf_data,
441 I2C_BOARD_INFO("cpld_reg0", 0x3a),
444 I2C_BOARD_INFO("tlv320aic33", 0x18),
447 I2C_BOARD_INFO("cpld_video", 0x3b),
451 static struct davinci_i2c_platform_data i2c_pdata = {
452 .bus_freq = 100 /* kHz */,
453 .bus_delay = 0 /* usec */,
456 #define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8))
457 #define VCH2CLK_SYSCLK8 (BIT(9))
458 #define VCH2CLK_AUXCLK (BIT(9) | BIT(8))
459 #define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12))
460 #define VCH3CLK_SYSCLK8 (BIT(13))
461 #define VCH3CLK_AUXCLK (BIT(14) | BIT(13))
463 #define VIDCH2CLK (BIT(10))
464 #define VIDCH3CLK (BIT(11))
465 #define VIDCH1CLK (BIT(4))
466 #define TVP7002_INPUT (BIT(4))
467 #define TVP5147_INPUT (~BIT(4))
468 #define VPIF_INPUT_ONE_CHANNEL (BIT(5))
469 #define VPIF_INPUT_TWO_CHANNEL (~BIT(5))
470 #define TVP5147_CH0 "tvp514x-0"
471 #define TVP5147_CH1 "tvp514x-1"
473 /* spin lock for updating above registers */
474 static spinlock_t vpif_reg_lock;
476 static int set_vpif_clock(int mux_mode, int hd)
486 /* disable the clock */
487 spin_lock_irqsave(&vpif_reg_lock, flags);
488 value = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS));
489 value |= (VIDCH3CLK | VIDCH2CLK);
490 __raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS));
491 spin_unlock_irqrestore(&vpif_reg_lock, flags);
493 val = i2c_smbus_read_byte(cpld_client);
502 err = i2c_smbus_write_byte(cpld_client, val);
506 value = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL));
507 value &= ~(VCH2CLK_MASK);
508 value &= ~(VCH3CLK_MASK);
511 value |= (VCH2CLK_SYSCLK8 | VCH3CLK_SYSCLK8);
513 value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK);
515 __raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL));
517 spin_lock_irqsave(&vpif_reg_lock, flags);
518 value = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS));
519 /* enable the clock */
520 value &= ~(VIDCH3CLK | VIDCH2CLK);
521 __raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS));
522 spin_unlock_irqrestore(&vpif_reg_lock, flags);
527 static struct vpif_subdev_info dm646x_vpif_subdev[] = {
531 I2C_BOARD_INFO("adv7343", 0x2a),
537 I2C_BOARD_INFO("ths7303", 0x2c),
542 static const struct vpif_output dm6467_ch0_outputs[] = {
547 .type = V4L2_OUTPUT_TYPE_ANALOG,
548 .capabilities = V4L2_OUT_CAP_STD,
551 .subdev_name = "adv7343",
552 .output_route = ADV7343_COMPOSITE_ID,
558 .type = V4L2_OUTPUT_TYPE_ANALOG,
559 .capabilities = V4L2_OUT_CAP_DV_TIMINGS,
561 .subdev_name = "adv7343",
562 .output_route = ADV7343_COMPONENT_ID,
568 .type = V4L2_OUTPUT_TYPE_ANALOG,
569 .capabilities = V4L2_OUT_CAP_STD,
572 .subdev_name = "adv7343",
573 .output_route = ADV7343_SVIDEO_ID,
577 static struct vpif_display_config dm646x_vpif_display_config = {
578 .set_clock = set_vpif_clock,
579 .subdevinfo = dm646x_vpif_subdev,
580 .subdev_count = ARRAY_SIZE(dm646x_vpif_subdev),
583 .outputs = dm6467_ch0_outputs,
584 .output_count = ARRAY_SIZE(dm6467_ch0_outputs),
586 .card_name = "DM646x EVM Video Display",
590 * setup_vpif_input_path()
591 * @channel: channel id (0 - CH0, 1 - CH1)
592 * @sub_dev_name: ptr sub device name
594 * This will set vpif input to capture data from tvp514x or
597 static int setup_vpif_input_path(int channel, const char *sub_dev_name)
602 /* for channel 1, we don't do anything */
609 val = i2c_smbus_read_byte(cpld_client);
613 if (!strcmp(sub_dev_name, TVP5147_CH0) ||
614 !strcmp(sub_dev_name, TVP5147_CH1))
615 val &= TVP5147_INPUT;
617 val |= TVP7002_INPUT;
619 err = i2c_smbus_write_byte(cpld_client, val);
626 * setup_vpif_input_channel_mode()
627 * @mux_mode: mux mode. 0 - 1 channel or (1) - 2 channel
629 * This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147)
631 static int setup_vpif_input_channel_mode(int mux_mode)
641 val = i2c_smbus_read_byte(cpld_client);
645 spin_lock_irqsave(&vpif_reg_lock, flags);
646 value = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL));
648 val &= VPIF_INPUT_TWO_CHANNEL;
651 val |= VPIF_INPUT_ONE_CHANNEL;
654 __raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL));
655 spin_unlock_irqrestore(&vpif_reg_lock, flags);
657 err = i2c_smbus_write_byte(cpld_client, val);
664 static struct tvp514x_platform_data tvp5146_pdata = {
670 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
672 static struct vpif_subdev_info vpif_capture_sdev_info[] = {
676 I2C_BOARD_INFO("tvp5146", 0x5d),
677 .platform_data = &tvp5146_pdata,
683 I2C_BOARD_INFO("tvp5146", 0x5c),
684 .platform_data = &tvp5146_pdata,
689 static struct vpif_input dm6467_ch0_inputs[] = {
694 .type = V4L2_INPUT_TYPE_CAMERA,
695 .capabilities = V4L2_IN_CAP_STD,
696 .std = TVP514X_STD_ALL,
698 .subdev_name = TVP5147_CH0,
699 .input_route = INPUT_CVBS_VI2B,
700 .output_route = OUTPUT_10BIT_422_EMBEDDED_SYNC,
704 static struct vpif_input dm6467_ch1_inputs[] = {
709 .type = V4L2_INPUT_TYPE_CAMERA,
710 .capabilities = V4L2_IN_CAP_STD,
711 .std = TVP514X_STD_ALL,
713 .subdev_name = TVP5147_CH1,
714 .input_route = INPUT_SVIDEO_VI2C_VI1C,
715 .output_route = OUTPUT_10BIT_422_EMBEDDED_SYNC,
719 static struct vpif_capture_config dm646x_vpif_capture_cfg = {
720 .setup_input_path = setup_vpif_input_path,
721 .setup_input_channel_mode = setup_vpif_input_channel_mode,
722 .subdev_info = vpif_capture_sdev_info,
723 .subdev_count = ARRAY_SIZE(vpif_capture_sdev_info),
726 .inputs = dm6467_ch0_inputs,
727 .input_count = ARRAY_SIZE(dm6467_ch0_inputs),
729 .if_type = VPIF_IF_BT656,
736 .inputs = dm6467_ch1_inputs,
737 .input_count = ARRAY_SIZE(dm6467_ch1_inputs),
739 .if_type = VPIF_IF_BT656,
745 .card_name = "DM646x EVM Video Capture",
748 static void __init evm_init_video(void)
750 spin_lock_init(&vpif_reg_lock);
752 dm646x_setup_vpif(&dm646x_vpif_display_config,
753 &dm646x_vpif_capture_cfg);
756 static void __init evm_init_i2c(void)
758 davinci_init_i2c(&i2c_pdata);
759 i2c_add_driver(&dm6467evm_cpld_driver);
760 i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
766 #define DM646X_REF_FREQ 27000000
767 #define DM646X_AUX_FREQ 24000000
768 #define DM6467T_EVM_REF_FREQ 33000000
770 static void __init davinci_map_io(void)
775 static void __init dm646x_evm_init_time(void)
777 dm646x_init_time(DM646X_REF_FREQ, DM646X_AUX_FREQ);
780 static void __init dm6467t_evm_init_time(void)
782 dm646x_init_time(DM6467T_EVM_REF_FREQ, DM646X_AUX_FREQ);
785 #define DM646X_EVM_PHY_ID "davinci_mdio-0:01"
787 * The following EDMA channels/slots are not being used by drivers (for
788 * example: Timer, GPIO, UART events etc) on dm646x, hence they are being
789 * reserved for codecs on the DSP side.
791 static const s16 dm646x_dma_rsv_chans[][2] = {
792 /* (offset, number) */
801 static const s16 dm646x_dma_rsv_slots[][2] = {
802 /* (offset, number) */
812 static struct edma_rsv_info dm646x_edma_rsv[] = {
814 .rsv_chans = dm646x_dma_rsv_chans,
815 .rsv_slots = dm646x_dma_rsv_slots,
819 static __init void evm_init(void)
822 struct davinci_soc_info *soc_info = &davinci_soc_info;
824 dm646x_register_clocks();
826 ret = dm646x_gpio_register();
828 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
831 nvmem_add_cell_table(&dm646x_evm_nvmem_cell_table);
832 nvmem_add_cell_lookups(&dm646x_evm_nvmem_cell_lookup, 1);
836 davinci_serial_init(dm646x_serial_device);
837 dm646x_init_mcasp0(&dm646x_evm_snd_data[0]);
838 dm646x_init_mcasp1(&dm646x_evm_snd_data[1]);
840 if (machine_is_davinci_dm6467tevm())
841 davinci_nand_data.timing = &dm6467tevm_nandflash_timing;
843 if (platform_device_register(&davinci_aemif_device))
844 pr_warn("%s: Cannot register AEMIF device.\n", __func__);
846 dm646x_init_edma(dm646x_edma_rsv);
851 soc_info->emac_pdata->phy_id = DM646X_EVM_PHY_ID;
854 MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM")
855 .atag_offset = 0x100,
856 .map_io = davinci_map_io,
857 .init_irq = dm646x_init_irq,
858 .init_time = dm646x_evm_init_time,
859 .init_machine = evm_init,
860 .init_late = davinci_init_late,
861 .dma_zone_size = SZ_128M,
864 MACHINE_START(DAVINCI_DM6467TEVM, "DaVinci DM6467T EVM")
865 .atag_offset = 0x100,
866 .map_io = davinci_map_io,
867 .init_irq = dm646x_init_irq,
868 .init_time = dm6467t_evm_init_time,
869 .init_machine = evm_init,
870 .init_late = davinci_init_late,
871 .dma_zone_size = SZ_128M,