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>
34 #include <asm/mach-types.h>
35 #include <asm/mach/arch.h>
37 #include <mach/dm646x.h>
38 #include <mach/common.h>
39 #include <mach/serial.h>
41 #include <mach/nand.h>
43 #if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
44 defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
50 #define DAVINCI_ASYNC_EMIF_CONTROL_BASE 0x20008000
51 #define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE 0x42000000
53 #define NAND_BLOCK_SIZE SZ_128K
55 /* CPLD Register 0 bits to control ATA */
56 #define DM646X_EVM_ATA_RST BIT(0)
57 #define DM646X_EVM_ATA_PWD BIT(1)
59 #define DM646X_EVM_PHY_MASK (0x2)
60 #define DM646X_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */
62 #define VIDCLKCTL_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x38)
63 #define VSCLKDIS_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x6c)
64 #define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8))
65 #define VCH2CLK_SYSCLK8 (BIT(9))
66 #define VCH2CLK_AUXCLK (BIT(9) | BIT(8))
67 #define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12))
68 #define VCH3CLK_SYSCLK8 (BIT(13))
69 #define VCH3CLK_AUXCLK (BIT(14) | BIT(13))
71 #define VIDCH2CLK (BIT(10))
72 #define VIDCH3CLK (BIT(11))
73 #define VIDCH1CLK (BIT(4))
74 #define TVP7002_INPUT (BIT(4))
75 #define TVP5147_INPUT (~BIT(4))
76 #define VPIF_INPUT_ONE_CHANNEL (BIT(5))
77 #define VPIF_INPUT_TWO_CHANNEL (~BIT(5))
78 #define TVP5147_CH0 "tvp514x-0"
79 #define TVP5147_CH1 "tvp514x-1"
81 static void __iomem
*vpif_vidclkctl_reg
;
82 static void __iomem
*vpif_vsclkdis_reg
;
83 /* spin lock for updating above registers */
84 static spinlock_t vpif_reg_lock
;
86 static struct davinci_uart_config uart_config __initdata
= {
87 .enabled_uarts
= (1 << 0),
90 /* Note: We are setting first partition as 'bootloader' constituting UBL, U-Boot
91 * and U-Boot environment this avoids dependency on any particular combination
92 * of UBL, U-Boot or flashing tools etc.
94 static struct mtd_partition davinci_nand_partitions
[] = {
96 /* UBL, U-Boot with environment */
98 .offset
= MTDPART_OFS_APPEND
,
99 .size
= 16 * NAND_BLOCK_SIZE
,
100 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
103 .offset
= MTDPART_OFS_APPEND
,
107 .name
= "filesystem",
108 .offset
= MTDPART_OFS_APPEND
,
109 .size
= MTDPART_SIZ_FULL
,
114 static struct davinci_nand_pdata davinci_nand_data
= {
117 .parts
= davinci_nand_partitions
,
118 .nr_parts
= ARRAY_SIZE(davinci_nand_partitions
),
119 .ecc_mode
= NAND_ECC_HW
,
123 static struct resource davinci_nand_resources
[] = {
125 .start
= DAVINCI_ASYNC_EMIF_DATA_CE0_BASE
,
126 .end
= DAVINCI_ASYNC_EMIF_DATA_CE0_BASE
+ SZ_32M
- 1,
127 .flags
= IORESOURCE_MEM
,
129 .start
= DAVINCI_ASYNC_EMIF_CONTROL_BASE
,
130 .end
= DAVINCI_ASYNC_EMIF_CONTROL_BASE
+ SZ_4K
- 1,
131 .flags
= IORESOURCE_MEM
,
135 static struct platform_device davinci_nand_device
= {
136 .name
= "davinci_nand",
139 .num_resources
= ARRAY_SIZE(davinci_nand_resources
),
140 .resource
= davinci_nand_resources
,
143 .platform_data
= &davinci_nand_data
,
147 /* CPLD Register 0 Client: used for I/O Control */
148 static int cpld_reg0_probe(struct i2c_client
*client
,
149 const struct i2c_device_id
*id
)
153 struct i2c_msg msg
[2] = {
155 .addr
= client
->addr
,
161 .addr
= client
->addr
,
168 /* Clear ATA_RSTn and ATA_PWD bits to enable ATA operation. */
169 i2c_transfer(client
->adapter
, msg
, 1);
170 data
&= ~(DM646X_EVM_ATA_RST
| DM646X_EVM_ATA_PWD
);
171 i2c_transfer(client
->adapter
, msg
+ 1, 1);
177 static const struct i2c_device_id cpld_reg_ids
[] = {
182 static struct i2c_driver dm6467evm_cpld_driver
= {
183 .driver
.name
= "cpld_reg0",
184 .id_table
= cpld_reg_ids
,
185 .probe
= cpld_reg0_probe
,
190 static struct gpio_led evm_leds
[] = {
191 { .name
= "DS1", .active_low
= 1, },
192 { .name
= "DS2", .active_low
= 1, },
193 { .name
= "DS3", .active_low
= 1, },
194 { .name
= "DS4", .active_low
= 1, },
197 static const struct gpio_led_platform_data evm_led_data
= {
198 .num_leds
= ARRAY_SIZE(evm_leds
),
202 static struct platform_device
*evm_led_dev
;
204 static int evm_led_setup(struct i2c_client
*client
, int gpio
,
205 unsigned int ngpio
, void *c
)
207 struct gpio_led
*leds
= evm_leds
;
215 evm_led_dev
= platform_device_alloc("leds-gpio", 0);
216 platform_device_add_data(evm_led_dev
, &evm_led_data
,
217 sizeof(evm_led_data
));
219 evm_led_dev
->dev
.parent
= &client
->dev
;
220 status
= platform_device_add(evm_led_dev
);
222 platform_device_put(evm_led_dev
);
228 static int evm_led_teardown(struct i2c_client
*client
, int gpio
,
229 unsigned ngpio
, void *c
)
232 platform_device_unregister(evm_led_dev
);
238 static int evm_sw_gpio
[4] = { -EINVAL
, -EINVAL
, -EINVAL
, -EINVAL
};
240 static int evm_sw_setup(struct i2c_client
*client
, int gpio
,
241 unsigned ngpio
, void *c
)
247 for (i
= 0; i
< 4; ++i
) {
248 snprintf(label
, 10, "user_sw%d", i
);
249 status
= gpio_request(gpio
, label
);
252 evm_sw_gpio
[i
] = gpio
++;
254 status
= gpio_direction_input(evm_sw_gpio
[i
]);
256 gpio_free(evm_sw_gpio
[i
]);
257 evm_sw_gpio
[i
] = -EINVAL
;
261 status
= gpio_export(evm_sw_gpio
[i
], 0);
263 gpio_free(evm_sw_gpio
[i
]);
264 evm_sw_gpio
[i
] = -EINVAL
;
270 for (i
= 0; i
< 4; ++i
) {
271 if (evm_sw_gpio
[i
] != -EINVAL
) {
272 gpio_free(evm_sw_gpio
[i
]);
273 evm_sw_gpio
[i
] = -EINVAL
;
279 static int evm_sw_teardown(struct i2c_client
*client
, int gpio
,
280 unsigned ngpio
, void *c
)
284 for (i
= 0; i
< 4; ++i
) {
285 if (evm_sw_gpio
[i
] != -EINVAL
) {
286 gpio_unexport(evm_sw_gpio
[i
]);
287 gpio_free(evm_sw_gpio
[i
]);
288 evm_sw_gpio
[i
] = -EINVAL
;
294 static int evm_pcf_setup(struct i2c_client
*client
, int gpio
,
295 unsigned int ngpio
, void *c
)
302 status
= evm_sw_setup(client
, gpio
, 4, c
);
306 return evm_led_setup(client
, gpio
+4, 4, c
);
309 static int evm_pcf_teardown(struct i2c_client
*client
, int gpio
,
310 unsigned int ngpio
, void *c
)
314 evm_sw_teardown(client
, gpio
, 4, c
);
315 evm_led_teardown(client
, gpio
+4, 4, c
);
320 static struct pcf857x_platform_data pcf_data
= {
321 .gpio_base
= DAVINCI_N_GPIO
+1,
322 .setup
= evm_pcf_setup
,
323 .teardown
= evm_pcf_teardown
,
326 /* Most of this EEPROM is unused, but U-Boot uses some data:
327 * - 0x7f00, 6 bytes Ethernet Address
328 * - ... newer boards may have more
331 static struct at24_platform_data eeprom_info
= {
332 .byte_len
= (256*1024) / 8,
334 .flags
= AT24_FLAG_ADDR16
,
335 .setup
= davinci_get_mac_addr
,
336 .context
= (void *)0x7f00,
339 static u8 dm646x_iis_serializer_direction
[] = {
340 TX_MODE
, RX_MODE
, INACTIVE_MODE
, INACTIVE_MODE
,
343 static u8 dm646x_dit_serializer_direction
[] = {
347 static struct snd_platform_data dm646x_evm_snd_data
[] = {
349 .tx_dma_offset
= 0x400,
350 .rx_dma_offset
= 0x400,
351 .op_mode
= DAVINCI_MCASP_IIS_MODE
,
352 .num_serializer
= ARRAY_SIZE(dm646x_iis_serializer_direction
),
354 .serial_dir
= dm646x_iis_serializer_direction
,
355 .eventq_no
= EVENTQ_0
,
358 .tx_dma_offset
= 0x400,
360 .op_mode
= DAVINCI_MCASP_DIT_MODE
,
361 .num_serializer
= ARRAY_SIZE(dm646x_dit_serializer_direction
),
363 .serial_dir
= dm646x_dit_serializer_direction
,
364 .eventq_no
= EVENTQ_0
,
368 static struct i2c_client
*cpld_client
;
370 static int cpld_video_probe(struct i2c_client
*client
,
371 const struct i2c_device_id
*id
)
373 cpld_client
= client
;
377 static int __devexit
cpld_video_remove(struct i2c_client
*client
)
383 static const struct i2c_device_id cpld_video_id
[] = {
388 static struct i2c_driver cpld_video_driver
= {
390 .name
= "cpld_video",
392 .probe
= cpld_video_probe
,
393 .remove
= cpld_video_remove
,
394 .id_table
= cpld_video_id
,
397 static void evm_init_cpld(void)
399 i2c_add_driver(&cpld_video_driver
);
402 static struct i2c_board_info __initdata i2c_info
[] = {
404 I2C_BOARD_INFO("24c256", 0x50),
405 .platform_data
= &eeprom_info
,
408 I2C_BOARD_INFO("pcf8574a", 0x38),
409 .platform_data
= &pcf_data
,
412 I2C_BOARD_INFO("cpld_reg0", 0x3a),
415 I2C_BOARD_INFO("tlv320aic33", 0x18),
418 I2C_BOARD_INFO("cpld_video", 0x3b),
422 static struct davinci_i2c_platform_data i2c_pdata
= {
423 .bus_freq
= 100 /* kHz */,
424 .bus_delay
= 0 /* usec */,
427 static int set_vpif_clock(int mux_mode
, int hd
)
434 if (!vpif_vidclkctl_reg
|| !vpif_vsclkdis_reg
|| !cpld_client
)
437 /* disable the clock */
438 spin_lock_irqsave(&vpif_reg_lock
, flags
);
439 value
= __raw_readl(vpif_vsclkdis_reg
);
440 value
|= (VIDCH3CLK
| VIDCH2CLK
);
441 __raw_writel(value
, vpif_vsclkdis_reg
);
442 spin_unlock_irqrestore(&vpif_reg_lock
, flags
);
444 val
= i2c_smbus_read_byte(cpld_client
);
453 err
= i2c_smbus_write_byte(cpld_client
, val
);
457 value
= __raw_readl(vpif_vidclkctl_reg
);
458 value
&= ~(VCH2CLK_MASK
);
459 value
&= ~(VCH3CLK_MASK
);
462 value
|= (VCH2CLK_SYSCLK8
| VCH3CLK_SYSCLK8
);
464 value
|= (VCH2CLK_AUXCLK
| VCH3CLK_AUXCLK
);
466 __raw_writel(value
, vpif_vidclkctl_reg
);
468 spin_lock_irqsave(&vpif_reg_lock
, flags
);
469 value
= __raw_readl(vpif_vsclkdis_reg
);
470 /* enable the clock */
471 value
&= ~(VIDCH3CLK
| VIDCH2CLK
);
472 __raw_writel(value
, vpif_vsclkdis_reg
);
473 spin_unlock_irqrestore(&vpif_reg_lock
, flags
);
478 static struct vpif_subdev_info dm646x_vpif_subdev
[] = {
482 I2C_BOARD_INFO("adv7343", 0x2a),
488 I2C_BOARD_INFO("ths7303", 0x2c),
493 static const char *output
[] = {
499 static struct vpif_display_config dm646x_vpif_display_config
= {
500 .set_clock
= set_vpif_clock
,
501 .subdevinfo
= dm646x_vpif_subdev
,
502 .subdev_count
= ARRAY_SIZE(dm646x_vpif_subdev
),
504 .output_count
= ARRAY_SIZE(output
),
505 .card_name
= "DM646x EVM",
509 * setup_vpif_input_path()
510 * @channel: channel id (0 - CH0, 1 - CH1)
511 * @sub_dev_name: ptr sub device name
513 * This will set vpif input to capture data from tvp514x or
516 static int setup_vpif_input_path(int channel
, const char *sub_dev_name
)
521 /* for channel 1, we don't do anything */
528 val
= i2c_smbus_read_byte(cpld_client
);
532 if (!strcmp(sub_dev_name
, TVP5147_CH0
) ||
533 !strcmp(sub_dev_name
, TVP5147_CH1
))
534 val
&= TVP5147_INPUT
;
536 val
|= TVP7002_INPUT
;
538 err
= i2c_smbus_write_byte(cpld_client
, val
);
545 * setup_vpif_input_channel_mode()
546 * @mux_mode: mux mode. 0 - 1 channel or (1) - 2 channel
548 * This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147)
550 static int setup_vpif_input_channel_mode(int mux_mode
)
557 if (!vpif_vsclkdis_reg
|| !cpld_client
)
560 val
= i2c_smbus_read_byte(cpld_client
);
564 spin_lock_irqsave(&vpif_reg_lock
, flags
);
565 value
= __raw_readl(vpif_vsclkdis_reg
);
567 val
&= VPIF_INPUT_TWO_CHANNEL
;
570 val
|= VPIF_INPUT_ONE_CHANNEL
;
573 __raw_writel(value
, vpif_vsclkdis_reg
);
574 spin_unlock_irqrestore(&vpif_reg_lock
, flags
);
576 err
= i2c_smbus_write_byte(cpld_client
, val
);
583 static struct tvp514x_platform_data tvp5146_pdata
= {
589 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
591 static struct vpif_subdev_info vpif_capture_sdev_info
[] = {
595 I2C_BOARD_INFO("tvp5146", 0x5d),
596 .platform_data
= &tvp5146_pdata
,
598 .input
= INPUT_CVBS_VI2B
,
599 .output
= OUTPUT_10BIT_422_EMBEDDED_SYNC
,
602 .if_type
= VPIF_IF_BT656
,
611 I2C_BOARD_INFO("tvp5146", 0x5c),
612 .platform_data
= &tvp5146_pdata
,
614 .input
= INPUT_SVIDEO_VI2C_VI1C
,
615 .output
= OUTPUT_10BIT_422_EMBEDDED_SYNC
,
618 .if_type
= VPIF_IF_BT656
,
626 static const struct vpif_input dm6467_ch0_inputs
[] = {
631 .type
= V4L2_INPUT_TYPE_CAMERA
,
632 .std
= TVP514X_STD_ALL
,
634 .subdev_name
= TVP5147_CH0
,
638 static const struct vpif_input dm6467_ch1_inputs
[] = {
643 .type
= V4L2_INPUT_TYPE_CAMERA
,
644 .std
= TVP514X_STD_ALL
,
646 .subdev_name
= TVP5147_CH1
,
650 static struct vpif_capture_config dm646x_vpif_capture_cfg
= {
651 .setup_input_path
= setup_vpif_input_path
,
652 .setup_input_channel_mode
= setup_vpif_input_channel_mode
,
653 .subdev_info
= vpif_capture_sdev_info
,
654 .subdev_count
= ARRAY_SIZE(vpif_capture_sdev_info
),
656 .inputs
= dm6467_ch0_inputs
,
657 .input_count
= ARRAY_SIZE(dm6467_ch0_inputs
),
660 .inputs
= dm6467_ch1_inputs
,
661 .input_count
= ARRAY_SIZE(dm6467_ch1_inputs
),
665 static void __init
evm_init_video(void)
667 vpif_vidclkctl_reg
= ioremap(VIDCLKCTL_OFFSET
, 4);
668 vpif_vsclkdis_reg
= ioremap(VSCLKDIS_OFFSET
, 4);
669 if (!vpif_vidclkctl_reg
|| !vpif_vsclkdis_reg
) {
670 pr_err("Can't map VPIF VIDCLKCTL or VSCLKDIS registers\n");
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 static void __init
davinci_map_io(void)
693 static __init
void evm_init(void)
695 struct davinci_soc_info
*soc_info
= &davinci_soc_info
;
698 davinci_serial_init(&uart_config
);
699 dm646x_init_mcasp0(&dm646x_evm_snd_data
[0]);
700 dm646x_init_mcasp1(&dm646x_evm_snd_data
[1]);
702 platform_device_register(&davinci_nand_device
);
707 soc_info
->emac_pdata
->phy_mask
= DM646X_EVM_PHY_MASK
;
708 soc_info
->emac_pdata
->mdio_max_freq
= DM646X_EVM_MDIO_FREQUENCY
;
711 static __init
void davinci_dm646x_evm_irq_init(void)
716 MACHINE_START(DAVINCI_DM6467_EVM
, "DaVinci DM646x EVM")
718 .io_pg_offst
= (__IO_ADDRESS(IO_PHYS
) >> 18) & 0xfffc,
719 .boot_params
= (0x80000100),
720 .map_io
= davinci_map_io
,
721 .init_irq
= davinci_dm646x_evm_irq_init
,
722 .timer
= &davinci_timer
,
723 .init_machine
= evm_init
,