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/common.h>
40 #include <mach/serial.h>
42 #include <mach/nand.h>
43 #include <mach/clock.h>
44 #include <mach/cdce949.h>
45 #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 VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8))
414 #define VCH2CLK_SYSCLK8 (BIT(9))
415 #define VCH2CLK_AUXCLK (BIT(9) | BIT(8))
416 #define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12))
417 #define VCH3CLK_SYSCLK8 (BIT(13))
418 #define VCH3CLK_AUXCLK (BIT(14) | BIT(13))
420 #define VIDCH2CLK (BIT(10))
421 #define VIDCH3CLK (BIT(11))
422 #define VIDCH1CLK (BIT(4))
423 #define TVP7002_INPUT (BIT(4))
424 #define TVP5147_INPUT (~BIT(4))
425 #define VPIF_INPUT_ONE_CHANNEL (BIT(5))
426 #define VPIF_INPUT_TWO_CHANNEL (~BIT(5))
427 #define TVP5147_CH0 "tvp514x-0"
428 #define TVP5147_CH1 "tvp514x-1"
430 /* spin lock for updating above registers */
431 static spinlock_t vpif_reg_lock
;
433 static int set_vpif_clock(int mux_mode
, int hd
)
443 /* disable the clock */
444 spin_lock_irqsave(&vpif_reg_lock
, flags
);
445 value
= __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS
));
446 value
|= (VIDCH3CLK
| VIDCH2CLK
);
447 __raw_writel(value
, DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS
));
448 spin_unlock_irqrestore(&vpif_reg_lock
, flags
);
450 val
= i2c_smbus_read_byte(cpld_client
);
459 err
= i2c_smbus_write_byte(cpld_client
, val
);
463 value
= __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL
));
464 value
&= ~(VCH2CLK_MASK
);
465 value
&= ~(VCH3CLK_MASK
);
468 value
|= (VCH2CLK_SYSCLK8
| VCH3CLK_SYSCLK8
);
470 value
|= (VCH2CLK_AUXCLK
| VCH3CLK_AUXCLK
);
472 __raw_writel(value
, DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL
));
474 spin_lock_irqsave(&vpif_reg_lock
, flags
);
475 value
= __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS
));
476 /* enable the clock */
477 value
&= ~(VIDCH3CLK
| VIDCH2CLK
);
478 __raw_writel(value
, DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS
));
479 spin_unlock_irqrestore(&vpif_reg_lock
, flags
);
484 static struct vpif_subdev_info dm646x_vpif_subdev
[] = {
488 I2C_BOARD_INFO("adv7343", 0x2a),
494 I2C_BOARD_INFO("ths7303", 0x2c),
499 static const char *output
[] = {
505 static struct vpif_display_config dm646x_vpif_display_config
= {
506 .set_clock
= set_vpif_clock
,
507 .subdevinfo
= dm646x_vpif_subdev
,
508 .subdev_count
= ARRAY_SIZE(dm646x_vpif_subdev
),
510 .output_count
= ARRAY_SIZE(output
),
511 .card_name
= "DM646x EVM",
515 * setup_vpif_input_path()
516 * @channel: channel id (0 - CH0, 1 - CH1)
517 * @sub_dev_name: ptr sub device name
519 * This will set vpif input to capture data from tvp514x or
522 static int setup_vpif_input_path(int channel
, const char *sub_dev_name
)
527 /* for channel 1, we don't do anything */
534 val
= i2c_smbus_read_byte(cpld_client
);
538 if (!strcmp(sub_dev_name
, TVP5147_CH0
) ||
539 !strcmp(sub_dev_name
, TVP5147_CH1
))
540 val
&= TVP5147_INPUT
;
542 val
|= TVP7002_INPUT
;
544 err
= i2c_smbus_write_byte(cpld_client
, val
);
551 * setup_vpif_input_channel_mode()
552 * @mux_mode: mux mode. 0 - 1 channel or (1) - 2 channel
554 * This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147)
556 static int setup_vpif_input_channel_mode(int mux_mode
)
566 val
= i2c_smbus_read_byte(cpld_client
);
570 spin_lock_irqsave(&vpif_reg_lock
, flags
);
571 value
= __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL
));
573 val
&= VPIF_INPUT_TWO_CHANNEL
;
576 val
|= VPIF_INPUT_ONE_CHANNEL
;
579 __raw_writel(value
, DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL
));
580 spin_unlock_irqrestore(&vpif_reg_lock
, flags
);
582 err
= i2c_smbus_write_byte(cpld_client
, val
);
589 static struct tvp514x_platform_data tvp5146_pdata
= {
595 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
597 static struct vpif_subdev_info vpif_capture_sdev_info
[] = {
601 I2C_BOARD_INFO("tvp5146", 0x5d),
602 .platform_data
= &tvp5146_pdata
,
604 .input
= INPUT_CVBS_VI2B
,
605 .output
= OUTPUT_10BIT_422_EMBEDDED_SYNC
,
608 .if_type
= VPIF_IF_BT656
,
617 I2C_BOARD_INFO("tvp5146", 0x5c),
618 .platform_data
= &tvp5146_pdata
,
620 .input
= INPUT_SVIDEO_VI2C_VI1C
,
621 .output
= OUTPUT_10BIT_422_EMBEDDED_SYNC
,
624 .if_type
= VPIF_IF_BT656
,
632 static const struct vpif_input dm6467_ch0_inputs
[] = {
637 .type
= V4L2_INPUT_TYPE_CAMERA
,
638 .std
= TVP514X_STD_ALL
,
640 .subdev_name
= TVP5147_CH0
,
644 static const struct vpif_input dm6467_ch1_inputs
[] = {
649 .type
= V4L2_INPUT_TYPE_CAMERA
,
650 .std
= TVP514X_STD_ALL
,
652 .subdev_name
= TVP5147_CH1
,
656 static struct vpif_capture_config dm646x_vpif_capture_cfg
= {
657 .setup_input_path
= setup_vpif_input_path
,
658 .setup_input_channel_mode
= setup_vpif_input_channel_mode
,
659 .subdev_info
= vpif_capture_sdev_info
,
660 .subdev_count
= ARRAY_SIZE(vpif_capture_sdev_info
),
662 .inputs
= dm6467_ch0_inputs
,
663 .input_count
= ARRAY_SIZE(dm6467_ch0_inputs
),
666 .inputs
= dm6467_ch1_inputs
,
667 .input_count
= ARRAY_SIZE(dm6467_ch1_inputs
),
671 static void __init
evm_init_video(void)
673 spin_lock_init(&vpif_reg_lock
);
675 dm646x_setup_vpif(&dm646x_vpif_display_config
,
676 &dm646x_vpif_capture_cfg
);
679 static void __init
evm_init_i2c(void)
681 davinci_init_i2c(&i2c_pdata
);
682 i2c_add_driver(&dm6467evm_cpld_driver
);
683 i2c_register_board_info(1, i2c_info
, ARRAY_SIZE(i2c_info
));
688 #define CDCE949_XIN_RATE 27000000
690 /* CDCE949 support - "lpsc" field is overridden to work as clock number */
691 static struct clk cdce_clk_in
= {
693 .rate
= CDCE949_XIN_RATE
,
696 static struct clk_lookup cdce_clks
[] = {
697 CLK(NULL
, "xin", &cdce_clk_in
),
698 CLK(NULL
, NULL
, NULL
),
701 static void __init
cdce_clk_init(void)
703 struct clk_lookup
*c
;
706 for (c
= cdce_clks
; c
->clk
; c
++) {
713 #define DM6467T_EVM_REF_FREQ 33000000
715 static void __init
davinci_map_io(void)
719 if (machine_is_davinci_dm6467tevm())
720 davinci_set_refclk_rate(DM6467T_EVM_REF_FREQ
);
725 static struct davinci_uart_config uart_config __initdata
= {
726 .enabled_uarts
= (1 << 0),
729 #define DM646X_EVM_PHY_ID "davinci_mdio-0:01"
731 * The following EDMA channels/slots are not being used by drivers (for
732 * example: Timer, GPIO, UART events etc) on dm646x, hence they are being
733 * reserved for codecs on the DSP side.
735 static const s16 dm646x_dma_rsv_chans
[][2] = {
736 /* (offset, number) */
745 static const s16 dm646x_dma_rsv_slots
[][2] = {
746 /* (offset, number) */
756 static struct edma_rsv_info dm646x_edma_rsv
[] = {
758 .rsv_chans
= dm646x_dma_rsv_chans
,
759 .rsv_slots
= dm646x_dma_rsv_slots
,
763 static __init
void evm_init(void)
765 struct davinci_soc_info
*soc_info
= &davinci_soc_info
;
768 davinci_serial_init(&uart_config
);
769 dm646x_init_mcasp0(&dm646x_evm_snd_data
[0]);
770 dm646x_init_mcasp1(&dm646x_evm_snd_data
[1]);
772 if (machine_is_davinci_dm6467tevm())
773 davinci_nand_data
.timing
= &dm6467tevm_nandflash_timing
;
775 platform_device_register(&davinci_nand_device
);
777 dm646x_init_edma(dm646x_edma_rsv
);
782 soc_info
->emac_pdata
->phy_id
= DM646X_EVM_PHY_ID
;
785 MACHINE_START(DAVINCI_DM6467_EVM
, "DaVinci DM646x EVM")
786 .atag_offset
= 0x100,
787 .map_io
= davinci_map_io
,
788 .init_irq
= davinci_irq_init
,
789 .timer
= &davinci_timer
,
790 .init_machine
= evm_init
,
791 .init_late
= davinci_init_late
,
792 .dma_zone_size
= SZ_128M
,
793 .restart
= davinci_restart
,
796 MACHINE_START(DAVINCI_DM6467TEVM
, "DaVinci DM6467T EVM")
797 .atag_offset
= 0x100,
798 .map_io
= davinci_map_io
,
799 .init_irq
= davinci_irq_init
,
800 .timer
= &davinci_timer
,
801 .init_machine
= evm_init
,
802 .init_late
= davinci_init_late
,
803 .dma_zone_size
= SZ_128M
,
804 .restart
= davinci_restart
,