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/i2c/at24.h>
26 #include <linux/i2c/pcf857x.h>
28 #include <media/tvp514x.h>
30 #include <linux/mtd/mtd.h>
31 #include <linux/mtd/nand.h>
32 #include <linux/mtd/partitions.h>
33 #include <linux/clk.h>
34 #include <linux/export.h>
36 #include <asm/mach-types.h>
37 #include <asm/mach/arch.h>
39 #include <mach/dm646x.h>
40 #include <mach/common.h>
41 #include <mach/serial.h>
43 #include <mach/nand.h>
44 #include <mach/clock.h>
45 #include <mach/cdce949.h>
46 #include <mach/aemif.h>
50 #define NAND_BLOCK_SIZE SZ_128K
52 /* Note: We are setting first partition as 'bootloader' constituting UBL, U-Boot
53 * and U-Boot environment this avoids dependency on any particular combination
54 * of UBL, U-Boot or flashing tools etc.
56 static struct mtd_partition davinci_nand_partitions[] = {
58 /* UBL, U-Boot with environment */
60 .offset = MTDPART_OFS_APPEND,
61 .size = 16 * NAND_BLOCK_SIZE,
62 .mask_flags = MTD_WRITEABLE, /* force read-only */
65 .offset = MTDPART_OFS_APPEND,
70 .offset = MTDPART_OFS_APPEND,
71 .size = MTDPART_SIZ_FULL,
76 static struct davinci_aemif_timing dm6467tevm_nandflash_timing = {
86 static struct davinci_nand_pdata davinci_nand_data = {
89 .parts = davinci_nand_partitions,
90 .nr_parts = ARRAY_SIZE(davinci_nand_partitions),
91 .ecc_mode = NAND_ECC_HW,
95 static struct resource davinci_nand_resources[] = {
97 .start = DM646X_ASYNC_EMIF_CS2_SPACE_BASE,
98 .end = DM646X_ASYNC_EMIF_CS2_SPACE_BASE + SZ_32M - 1,
99 .flags = IORESOURCE_MEM,
101 .start = DM646X_ASYNC_EMIF_CONTROL_BASE,
102 .end = DM646X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
103 .flags = IORESOURCE_MEM,
107 static struct platform_device davinci_nand_device = {
108 .name = "davinci_nand",
111 .num_resources = ARRAY_SIZE(davinci_nand_resources),
112 .resource = davinci_nand_resources,
115 .platform_data = &davinci_nand_data,
119 #if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
120 defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
126 /* CPLD Register 0 bits to control ATA */
127 #define DM646X_EVM_ATA_RST BIT(0)
128 #define DM646X_EVM_ATA_PWD BIT(1)
130 /* CPLD Register 0 Client: used for I/O Control */
131 static int cpld_reg0_probe(struct i2c_client *client,
132 const struct i2c_device_id *id)
136 struct i2c_msg msg[2] = {
138 .addr = client->addr,
144 .addr = client->addr,
151 /* Clear ATA_RSTn and ATA_PWD bits to enable ATA operation. */
152 i2c_transfer(client->adapter, msg, 1);
153 data &= ~(DM646X_EVM_ATA_RST | DM646X_EVM_ATA_PWD);
154 i2c_transfer(client->adapter, msg + 1, 1);
160 static const struct i2c_device_id cpld_reg_ids[] = {
165 static struct i2c_driver dm6467evm_cpld_driver = {
166 .driver.name = "cpld_reg0",
167 .id_table = cpld_reg_ids,
168 .probe = cpld_reg0_probe,
173 static struct gpio_led evm_leds[] = {
174 { .name = "DS1", .active_low = 1, },
175 { .name = "DS2", .active_low = 1, },
176 { .name = "DS3", .active_low = 1, },
177 { .name = "DS4", .active_low = 1, },
180 static const struct gpio_led_platform_data evm_led_data = {
181 .num_leds = ARRAY_SIZE(evm_leds),
185 static struct platform_device *evm_led_dev;
187 static int evm_led_setup(struct i2c_client *client, int gpio,
188 unsigned int ngpio, void *c)
190 struct gpio_led *leds = evm_leds;
198 evm_led_dev = platform_device_alloc("leds-gpio", 0);
199 platform_device_add_data(evm_led_dev, &evm_led_data,
200 sizeof(evm_led_data));
202 evm_led_dev->dev.parent = &client->dev;
203 status = platform_device_add(evm_led_dev);
205 platform_device_put(evm_led_dev);
211 static int evm_led_teardown(struct i2c_client *client, int gpio,
212 unsigned ngpio, void *c)
215 platform_device_unregister(evm_led_dev);
221 static int evm_sw_gpio[4] = { -EINVAL, -EINVAL, -EINVAL, -EINVAL };
223 static int evm_sw_setup(struct i2c_client *client, int gpio,
224 unsigned ngpio, void *c)
230 for (i = 0; i < 4; ++i) {
231 snprintf(label, 10, "user_sw%d", i);
232 status = gpio_request(gpio, label);
235 evm_sw_gpio[i] = gpio++;
237 status = gpio_direction_input(evm_sw_gpio[i]);
239 gpio_free(evm_sw_gpio[i]);
240 evm_sw_gpio[i] = -EINVAL;
244 status = gpio_export(evm_sw_gpio[i], 0);
246 gpio_free(evm_sw_gpio[i]);
247 evm_sw_gpio[i] = -EINVAL;
253 for (i = 0; i < 4; ++i) {
254 if (evm_sw_gpio[i] != -EINVAL) {
255 gpio_free(evm_sw_gpio[i]);
256 evm_sw_gpio[i] = -EINVAL;
262 static int evm_sw_teardown(struct i2c_client *client, int gpio,
263 unsigned ngpio, void *c)
267 for (i = 0; i < 4; ++i) {
268 if (evm_sw_gpio[i] != -EINVAL) {
269 gpio_unexport(evm_sw_gpio[i]);
270 gpio_free(evm_sw_gpio[i]);
271 evm_sw_gpio[i] = -EINVAL;
277 static int evm_pcf_setup(struct i2c_client *client, int gpio,
278 unsigned int ngpio, void *c)
285 status = evm_sw_setup(client, gpio, 4, c);
289 return evm_led_setup(client, gpio+4, 4, c);
292 static int evm_pcf_teardown(struct i2c_client *client, int gpio,
293 unsigned int ngpio, void *c)
297 evm_sw_teardown(client, gpio, 4, c);
298 evm_led_teardown(client, gpio+4, 4, c);
303 static struct pcf857x_platform_data pcf_data = {
304 .gpio_base = DAVINCI_N_GPIO+1,
305 .setup = evm_pcf_setup,
306 .teardown = evm_pcf_teardown,
309 /* Most of this EEPROM is unused, but U-Boot uses some data:
310 * - 0x7f00, 6 bytes Ethernet Address
311 * - ... newer boards may have more
314 static struct at24_platform_data eeprom_info = {
315 .byte_len = (256*1024) / 8,
317 .flags = AT24_FLAG_ADDR16,
318 .setup = davinci_get_mac_addr,
319 .context = (void *)0x7f00,
322 static u8 dm646x_iis_serializer_direction[] = {
323 TX_MODE, RX_MODE, INACTIVE_MODE, INACTIVE_MODE,
326 static u8 dm646x_dit_serializer_direction[] = {
330 static struct snd_platform_data dm646x_evm_snd_data[] = {
332 .tx_dma_offset = 0x400,
333 .rx_dma_offset = 0x400,
334 .op_mode = DAVINCI_MCASP_IIS_MODE,
335 .num_serializer = ARRAY_SIZE(dm646x_iis_serializer_direction),
337 .serial_dir = dm646x_iis_serializer_direction,
338 .asp_chan_q = EVENTQ_0,
341 .tx_dma_offset = 0x400,
343 .op_mode = DAVINCI_MCASP_DIT_MODE,
344 .num_serializer = ARRAY_SIZE(dm646x_dit_serializer_direction),
346 .serial_dir = dm646x_dit_serializer_direction,
347 .asp_chan_q = EVENTQ_0,
351 static struct i2c_client *cpld_client;
353 static int cpld_video_probe(struct i2c_client *client,
354 const struct i2c_device_id *id)
356 cpld_client = client;
360 static int __devexit cpld_video_remove(struct i2c_client *client)
366 static const struct i2c_device_id cpld_video_id[] = {
371 static struct i2c_driver cpld_video_driver = {
373 .name = "cpld_video",
375 .probe = cpld_video_probe,
376 .remove = cpld_video_remove,
377 .id_table = cpld_video_id,
380 static void evm_init_cpld(void)
382 i2c_add_driver(&cpld_video_driver);
385 static struct i2c_board_info __initdata i2c_info[] = {
387 I2C_BOARD_INFO("24c256", 0x50),
388 .platform_data = &eeprom_info,
391 I2C_BOARD_INFO("pcf8574a", 0x38),
392 .platform_data = &pcf_data,
395 I2C_BOARD_INFO("cpld_reg0", 0x3a),
398 I2C_BOARD_INFO("tlv320aic33", 0x18),
401 I2C_BOARD_INFO("cpld_video", 0x3b),
404 I2C_BOARD_INFO("cdce949", 0x6c),
408 static struct davinci_i2c_platform_data i2c_pdata = {
409 .bus_freq = 100 /* kHz */,
410 .bus_delay = 0 /* usec */,
413 #define VIDCLKCTL_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x38)
414 #define VSCLKDIS_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x6c)
415 #define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8))
416 #define VCH2CLK_SYSCLK8 (BIT(9))
417 #define VCH2CLK_AUXCLK (BIT(9) | BIT(8))
418 #define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12))
419 #define VCH3CLK_SYSCLK8 (BIT(13))
420 #define VCH3CLK_AUXCLK (BIT(14) | BIT(13))
422 #define VIDCH2CLK (BIT(10))
423 #define VIDCH3CLK (BIT(11))
424 #define VIDCH1CLK (BIT(4))
425 #define TVP7002_INPUT (BIT(4))
426 #define TVP5147_INPUT (~BIT(4))
427 #define VPIF_INPUT_ONE_CHANNEL (BIT(5))
428 #define VPIF_INPUT_TWO_CHANNEL (~BIT(5))
429 #define TVP5147_CH0 "tvp514x-0"
430 #define TVP5147_CH1 "tvp514x-1"
432 static void __iomem *vpif_vidclkctl_reg;
433 static void __iomem *vpif_vsclkdis_reg;
434 /* spin lock for updating above registers */
435 static spinlock_t vpif_reg_lock;
437 static int set_vpif_clock(int mux_mode, int hd)
444 if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg || !cpld_client)
447 /* disable the clock */
448 spin_lock_irqsave(&vpif_reg_lock, flags);
449 value = __raw_readl(vpif_vsclkdis_reg);
450 value |= (VIDCH3CLK | VIDCH2CLK);
451 __raw_writel(value, vpif_vsclkdis_reg);
452 spin_unlock_irqrestore(&vpif_reg_lock, flags);
454 val = i2c_smbus_read_byte(cpld_client);
463 err = i2c_smbus_write_byte(cpld_client, val);
467 value = __raw_readl(vpif_vidclkctl_reg);
468 value &= ~(VCH2CLK_MASK);
469 value &= ~(VCH3CLK_MASK);
472 value |= (VCH2CLK_SYSCLK8 | VCH3CLK_SYSCLK8);
474 value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK);
476 __raw_writel(value, vpif_vidclkctl_reg);
478 spin_lock_irqsave(&vpif_reg_lock, flags);
479 value = __raw_readl(vpif_vsclkdis_reg);
480 /* enable the clock */
481 value &= ~(VIDCH3CLK | VIDCH2CLK);
482 __raw_writel(value, vpif_vsclkdis_reg);
483 spin_unlock_irqrestore(&vpif_reg_lock, flags);
488 static struct vpif_subdev_info dm646x_vpif_subdev[] = {
492 I2C_BOARD_INFO("adv7343", 0x2a),
498 I2C_BOARD_INFO("ths7303", 0x2c),
503 static const char *output[] = {
509 static struct vpif_display_config dm646x_vpif_display_config = {
510 .set_clock = set_vpif_clock,
511 .subdevinfo = dm646x_vpif_subdev,
512 .subdev_count = ARRAY_SIZE(dm646x_vpif_subdev),
514 .output_count = ARRAY_SIZE(output),
515 .card_name = "DM646x EVM",
519 * setup_vpif_input_path()
520 * @channel: channel id (0 - CH0, 1 - CH1)
521 * @sub_dev_name: ptr sub device name
523 * This will set vpif input to capture data from tvp514x or
526 static int setup_vpif_input_path(int channel, const char *sub_dev_name)
531 /* for channel 1, we don't do anything */
538 val = i2c_smbus_read_byte(cpld_client);
542 if (!strcmp(sub_dev_name, TVP5147_CH0) ||
543 !strcmp(sub_dev_name, TVP5147_CH1))
544 val &= TVP5147_INPUT;
546 val |= TVP7002_INPUT;
548 err = i2c_smbus_write_byte(cpld_client, val);
555 * setup_vpif_input_channel_mode()
556 * @mux_mode: mux mode. 0 - 1 channel or (1) - 2 channel
558 * This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147)
560 static int setup_vpif_input_channel_mode(int mux_mode)
567 if (!vpif_vidclkctl_reg || !cpld_client)
570 val = i2c_smbus_read_byte(cpld_client);
574 spin_lock_irqsave(&vpif_reg_lock, flags);
575 value = __raw_readl(vpif_vidclkctl_reg);
577 val &= VPIF_INPUT_TWO_CHANNEL;
580 val |= VPIF_INPUT_ONE_CHANNEL;
583 __raw_writel(value, vpif_vidclkctl_reg);
584 spin_unlock_irqrestore(&vpif_reg_lock, flags);
586 err = i2c_smbus_write_byte(cpld_client, val);
593 static struct tvp514x_platform_data tvp5146_pdata = {
599 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
601 static struct vpif_subdev_info vpif_capture_sdev_info[] = {
605 I2C_BOARD_INFO("tvp5146", 0x5d),
606 .platform_data = &tvp5146_pdata,
608 .input = INPUT_CVBS_VI2B,
609 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
612 .if_type = VPIF_IF_BT656,
621 I2C_BOARD_INFO("tvp5146", 0x5c),
622 .platform_data = &tvp5146_pdata,
624 .input = INPUT_SVIDEO_VI2C_VI1C,
625 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
628 .if_type = VPIF_IF_BT656,
636 static const struct vpif_input dm6467_ch0_inputs[] = {
641 .type = V4L2_INPUT_TYPE_CAMERA,
642 .std = TVP514X_STD_ALL,
644 .subdev_name = TVP5147_CH0,
648 static const struct vpif_input dm6467_ch1_inputs[] = {
653 .type = V4L2_INPUT_TYPE_CAMERA,
654 .std = TVP514X_STD_ALL,
656 .subdev_name = TVP5147_CH1,
660 static struct vpif_capture_config dm646x_vpif_capture_cfg = {
661 .setup_input_path = setup_vpif_input_path,
662 .setup_input_channel_mode = setup_vpif_input_channel_mode,
663 .subdev_info = vpif_capture_sdev_info,
664 .subdev_count = ARRAY_SIZE(vpif_capture_sdev_info),
666 .inputs = dm6467_ch0_inputs,
667 .input_count = ARRAY_SIZE(dm6467_ch0_inputs),
670 .inputs = dm6467_ch1_inputs,
671 .input_count = ARRAY_SIZE(dm6467_ch1_inputs),
675 static void __init evm_init_video(void)
677 vpif_vidclkctl_reg = ioremap(VIDCLKCTL_OFFSET, 4);
678 vpif_vsclkdis_reg = ioremap(VSCLKDIS_OFFSET, 4);
679 if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg) {
680 pr_err("Can't map VPIF VIDCLKCTL or VSCLKDIS registers\n");
683 spin_lock_init(&vpif_reg_lock);
685 dm646x_setup_vpif(&dm646x_vpif_display_config,
686 &dm646x_vpif_capture_cfg);
689 static void __init evm_init_i2c(void)
691 davinci_init_i2c(&i2c_pdata);
692 i2c_add_driver(&dm6467evm_cpld_driver);
693 i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
698 #define CDCE949_XIN_RATE 27000000
700 /* CDCE949 support - "lpsc" field is overridden to work as clock number */
701 static struct clk cdce_clk_in = {
703 .rate = CDCE949_XIN_RATE,
706 static struct clk_lookup cdce_clks[] = {
707 CLK(NULL, "xin", &cdce_clk_in),
708 CLK(NULL, NULL, NULL),
711 static void __init cdce_clk_init(void)
713 struct clk_lookup *c;
716 for (c = cdce_clks; c->clk; c++) {
723 #define DM6467T_EVM_REF_FREQ 33000000
725 static void __init davinci_map_io(void)
729 if (machine_is_davinci_dm6467tevm())
730 davinci_set_refclk_rate(DM6467T_EVM_REF_FREQ);
735 static struct davinci_uart_config uart_config __initdata = {
736 .enabled_uarts = (1 << 0),
739 #define DM646X_EVM_PHY_ID "0:01"
741 * The following EDMA channels/slots are not being used by drivers (for
742 * example: Timer, GPIO, UART events etc) on dm646x, hence they are being
743 * reserved for codecs on the DSP side.
745 static const s16 dm646x_dma_rsv_chans[][2] = {
746 /* (offset, number) */
755 static const s16 dm646x_dma_rsv_slots[][2] = {
756 /* (offset, number) */
766 static struct edma_rsv_info dm646x_edma_rsv[] = {
768 .rsv_chans = dm646x_dma_rsv_chans,
769 .rsv_slots = dm646x_dma_rsv_slots,
773 static __init void evm_init(void)
775 struct davinci_soc_info *soc_info = &davinci_soc_info;
778 davinci_serial_init(&uart_config);
779 dm646x_init_mcasp0(&dm646x_evm_snd_data[0]);
780 dm646x_init_mcasp1(&dm646x_evm_snd_data[1]);
782 if (machine_is_davinci_dm6467tevm())
783 davinci_nand_data.timing = &dm6467tevm_nandflash_timing;
785 platform_device_register(&davinci_nand_device);
787 dm646x_init_edma(dm646x_edma_rsv);
792 soc_info->emac_pdata->phy_id = DM646X_EVM_PHY_ID;
795 MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM")
796 .atag_offset = 0x100,
797 .map_io = davinci_map_io,
798 .init_irq = davinci_irq_init,
799 .timer = &davinci_timer,
800 .init_machine = evm_init,
801 .dma_zone_size = SZ_128M,
804 MACHINE_START(DAVINCI_DM6467TEVM, "DaVinci DM6467T EVM")
805 .atag_offset = 0x100,
806 .map_io = davinci_map_io,
807 .init_irq = davinci_irq_init,
808 .timer = &davinci_timer,
809 .init_machine = evm_init,
810 .dma_zone_size = SZ_128M,