/* * TI DaVinci DM646X EVM board * * Derived from: arch/arm/mach-davinci/board-evm.c * Copyright (C) 2006 Texas Instruments. * * (C) 2007-2008, MontaVista Software, Inc. * * This file is licensed under the terms of the GNU General Public License * version 2. This program is licensed "as is" without any warranty of any * kind, whether express or implied. * */ /************************************************************************** * Included Files **************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \ defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE) #define HAS_ATA 1 #else #define HAS_ATA 0 #endif /* CPLD Register 0 bits to control ATA */ #define DM646X_EVM_ATA_RST BIT(0) #define DM646X_EVM_ATA_PWD BIT(1) #define DM646X_EVM_PHY_MASK (0x2) #define DM646X_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */ #define VIDCLKCTL_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x38) #define VSCLKDIS_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x6c) #define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8)) #define VCH2CLK_SYSCLK8 (BIT(9)) #define VCH2CLK_AUXCLK (BIT(9) | BIT(8)) #define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12)) #define VCH3CLK_SYSCLK8 (BIT(13)) #define VCH3CLK_AUXCLK (BIT(14) | BIT(13)) #define VIDCH2CLK (BIT(10)) #define VIDCH3CLK (BIT(11)) #define VIDCH1CLK (BIT(4)) #define TVP7002_INPUT (BIT(4)) #define TVP5147_INPUT (~BIT(4)) #define VPIF_INPUT_ONE_CHANNEL (BIT(5)) #define VPIF_INPUT_TWO_CHANNEL (~BIT(5)) #define TVP5147_CH0 "tvp514x-0" #define TVP5147_CH1 "tvp514x-1" static void __iomem *vpif_vidclkctl_reg; static void __iomem *vpif_vsclkdis_reg; /* spin lock for updating above registers */ static spinlock_t vpif_reg_lock; static struct davinci_uart_config uart_config __initdata = { .enabled_uarts = (1 << 0), }; /* CPLD Register 0 Client: used for I/O Control */ static int cpld_reg0_probe(struct i2c_client *client, const struct i2c_device_id *id) { if (HAS_ATA) { u8 data; struct i2c_msg msg[2] = { { .addr = client->addr, .flags = I2C_M_RD, .len = 1, .buf = &data, }, { .addr = client->addr, .flags = 0, .len = 1, .buf = &data, }, }; /* Clear ATA_RSTn and ATA_PWD bits to enable ATA operation. */ i2c_transfer(client->adapter, msg, 1); data &= ~(DM646X_EVM_ATA_RST | DM646X_EVM_ATA_PWD); i2c_transfer(client->adapter, msg + 1, 1); } return 0; } static const struct i2c_device_id cpld_reg_ids[] = { { "cpld_reg0", 0, }, { }, }; static struct i2c_driver dm6467evm_cpld_driver = { .driver.name = "cpld_reg0", .id_table = cpld_reg_ids, .probe = cpld_reg0_probe, }; /* LEDS */ static struct gpio_led evm_leds[] = { { .name = "DS1", .active_low = 1, }, { .name = "DS2", .active_low = 1, }, { .name = "DS3", .active_low = 1, }, { .name = "DS4", .active_low = 1, }, }; static __initconst struct gpio_led_platform_data evm_led_data = { .num_leds = ARRAY_SIZE(evm_leds), .leds = evm_leds, }; static struct platform_device *evm_led_dev; static int evm_led_setup(struct i2c_client *client, int gpio, unsigned int ngpio, void *c) { struct gpio_led *leds = evm_leds; int status; while (ngpio--) { leds->gpio = gpio++; leds++; }; evm_led_dev = platform_device_alloc("leds-gpio", 0); platform_device_add_data(evm_led_dev, &evm_led_data, sizeof(evm_led_data)); evm_led_dev->dev.parent = &client->dev; status = platform_device_add(evm_led_dev); if (status < 0) { platform_device_put(evm_led_dev); evm_led_dev = NULL; } return status; } static int evm_led_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c) { if (evm_led_dev) { platform_device_unregister(evm_led_dev); evm_led_dev = NULL; } return 0; } static int evm_sw_gpio[4] = { -EINVAL, -EINVAL, -EINVAL, -EINVAL }; static int evm_sw_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c) { int status; int i; char label[10]; for (i = 0; i < 4; ++i) { snprintf(label, 10, "user_sw%d", i); status = gpio_request(gpio, label); if (status) goto out_free; evm_sw_gpio[i] = gpio++; status = gpio_direction_input(evm_sw_gpio[i]); if (status) { gpio_free(evm_sw_gpio[i]); evm_sw_gpio[i] = -EINVAL; goto out_free; } status = gpio_export(evm_sw_gpio[i], 0); if (status) { gpio_free(evm_sw_gpio[i]); evm_sw_gpio[i] = -EINVAL; goto out_free; } } return status; out_free: for (i = 0; i < 4; ++i) { if (evm_sw_gpio[i] != -EINVAL) { gpio_free(evm_sw_gpio[i]); evm_sw_gpio[i] = -EINVAL; } } return status; } static int evm_sw_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c) { int i; for (i = 0; i < 4; ++i) { if (evm_sw_gpio[i] != -EINVAL) { gpio_unexport(evm_sw_gpio[i]); gpio_free(evm_sw_gpio[i]); evm_sw_gpio[i] = -EINVAL; } } return 0; } static int evm_pcf_setup(struct i2c_client *client, int gpio, unsigned int ngpio, void *c) { int status; if (ngpio < 8) return -EINVAL; status = evm_sw_setup(client, gpio, 4, c); if (status) return status; return evm_led_setup(client, gpio+4, 4, c); } static int evm_pcf_teardown(struct i2c_client *client, int gpio, unsigned int ngpio, void *c) { BUG_ON(ngpio < 8); evm_sw_teardown(client, gpio, 4, c); evm_led_teardown(client, gpio+4, 4, c); return 0; } static struct pcf857x_platform_data pcf_data = { .gpio_base = DAVINCI_N_GPIO+1, .setup = evm_pcf_setup, .teardown = evm_pcf_teardown, }; /* Most of this EEPROM is unused, but U-Boot uses some data: * - 0x7f00, 6 bytes Ethernet Address * - ... newer boards may have more */ static struct at24_platform_data eeprom_info = { .byte_len = (256*1024) / 8, .page_size = 64, .flags = AT24_FLAG_ADDR16, .setup = davinci_get_mac_addr, .context = (void *)0x7f00, }; static u8 dm646x_iis_serializer_direction[] = { TX_MODE, RX_MODE, INACTIVE_MODE, INACTIVE_MODE, }; static u8 dm646x_dit_serializer_direction[] = { TX_MODE, }; static struct snd_platform_data dm646x_evm_snd_data[] = { { .tx_dma_offset = 0x400, .rx_dma_offset = 0x400, .op_mode = DAVINCI_MCASP_IIS_MODE, .num_serializer = ARRAY_SIZE(dm646x_iis_serializer_direction), .tdm_slots = 2, .serial_dir = dm646x_iis_serializer_direction, .eventq_no = EVENTQ_0, }, { .tx_dma_offset = 0x400, .rx_dma_offset = 0, .op_mode = DAVINCI_MCASP_DIT_MODE, .num_serializer = ARRAY_SIZE(dm646x_dit_serializer_direction), .tdm_slots = 32, .serial_dir = dm646x_dit_serializer_direction, .eventq_no = EVENTQ_0, }, }; static struct i2c_client *cpld_client; static int cpld_video_probe(struct i2c_client *client, const struct i2c_device_id *id) { cpld_client = client; return 0; } static int __devexit cpld_video_remove(struct i2c_client *client) { cpld_client = NULL; return 0; } static const struct i2c_device_id cpld_video_id[] = { { "cpld_video", 0 }, { } }; static struct i2c_driver cpld_video_driver = { .driver = { .name = "cpld_video", }, .probe = cpld_video_probe, .remove = cpld_video_remove, .id_table = cpld_video_id, }; static void evm_init_cpld(void) { i2c_add_driver(&cpld_video_driver); } static struct i2c_board_info __initdata i2c_info[] = { { I2C_BOARD_INFO("24c256", 0x50), .platform_data = &eeprom_info, }, { I2C_BOARD_INFO("pcf8574a", 0x38), .platform_data = &pcf_data, }, { I2C_BOARD_INFO("cpld_reg0", 0x3a), }, { I2C_BOARD_INFO("tlv320aic33", 0x18), }, { I2C_BOARD_INFO("cpld_video", 0x3b), }, }; static struct davinci_i2c_platform_data i2c_pdata = { .bus_freq = 100 /* kHz */, .bus_delay = 0 /* usec */, }; static int set_vpif_clock(int mux_mode, int hd) { unsigned long flags; unsigned int value; int val = 0; int err = 0; if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg || !cpld_client) return -ENXIO; /* disable the clock */ spin_lock_irqsave(&vpif_reg_lock, flags); value = __raw_readl(vpif_vsclkdis_reg); value |= (VIDCH3CLK | VIDCH2CLK); __raw_writel(value, vpif_vsclkdis_reg); spin_unlock_irqrestore(&vpif_reg_lock, flags); val = i2c_smbus_read_byte(cpld_client); if (val < 0) return val; if (mux_mode == 1) val &= ~0x40; else val |= 0x40; err = i2c_smbus_write_byte(cpld_client, val); if (err) return err; value = __raw_readl(vpif_vidclkctl_reg); value &= ~(VCH2CLK_MASK); value &= ~(VCH3CLK_MASK); if (hd >= 1) value |= (VCH2CLK_SYSCLK8 | VCH3CLK_SYSCLK8); else value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK); __raw_writel(value, vpif_vidclkctl_reg); spin_lock_irqsave(&vpif_reg_lock, flags); value = __raw_readl(vpif_vsclkdis_reg); /* enable the clock */ value &= ~(VIDCH3CLK | VIDCH2CLK); __raw_writel(value, vpif_vsclkdis_reg); spin_unlock_irqrestore(&vpif_reg_lock, flags); return 0; } static struct vpif_subdev_info dm646x_vpif_subdev[] = { { .name = "adv7343", .board_info = { I2C_BOARD_INFO("adv7343", 0x2a), }, }, { .name = "ths7303", .board_info = { I2C_BOARD_INFO("ths7303", 0x2c), }, }, }; static const char *output[] = { "Composite", "Component", "S-Video", }; static struct vpif_display_config dm646x_vpif_display_config = { .set_clock = set_vpif_clock, .subdevinfo = dm646x_vpif_subdev, .subdev_count = ARRAY_SIZE(dm646x_vpif_subdev), .output = output, .output_count = ARRAY_SIZE(output), .card_name = "DM646x EVM", }; /** * setup_vpif_input_path() * @channel: channel id (0 - CH0, 1 - CH1) * @sub_dev_name: ptr sub device name * * This will set vpif input to capture data from tvp514x or * tvp7002. */ static int setup_vpif_input_path(int channel, const char *sub_dev_name) { int err = 0; int val; /* for channel 1, we don't do anything */ if (channel != 0) return 0; if (!cpld_client) return -ENXIO; val = i2c_smbus_read_byte(cpld_client); if (val < 0) return val; if (!strcmp(sub_dev_name, TVP5147_CH0) || !strcmp(sub_dev_name, TVP5147_CH1)) val &= TVP5147_INPUT; else val |= TVP7002_INPUT; err = i2c_smbus_write_byte(cpld_client, val); if (err) return err; return 0; } /** * setup_vpif_input_channel_mode() * @mux_mode: mux mode. 0 - 1 channel or (1) - 2 channel * * This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147) */ static int setup_vpif_input_channel_mode(int mux_mode) { unsigned long flags; int err = 0; int val; u32 value; if (!vpif_vidclkctl_reg || !cpld_client) return -ENXIO; val = i2c_smbus_read_byte(cpld_client); if (val < 0) return val; spin_lock_irqsave(&vpif_reg_lock, flags); value = __raw_readl(vpif_vidclkctl_reg); if (mux_mode) { val &= VPIF_INPUT_TWO_CHANNEL; value |= VIDCH1CLK; } else { val |= VPIF_INPUT_ONE_CHANNEL; value &= ~VIDCH1CLK; } __raw_writel(value, vpif_vidclkctl_reg); spin_unlock_irqrestore(&vpif_reg_lock, flags); err = i2c_smbus_write_byte(cpld_client, val); if (err) return err; return 0; } static struct tvp514x_platform_data tvp5146_pdata = { .clk_polarity = 0, .hs_polarity = 1, .vs_polarity = 1 }; #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL) static struct vpif_subdev_info vpif_capture_sdev_info[] = { { .name = TVP5147_CH0, .board_info = { I2C_BOARD_INFO("tvp5146", 0x5d), .platform_data = &tvp5146_pdata, }, .input = INPUT_CVBS_VI2B, .output = OUTPUT_10BIT_422_EMBEDDED_SYNC, .can_route = 1, .vpif_if = { .if_type = VPIF_IF_BT656, .hd_pol = 1, .vd_pol = 1, .fid_pol = 0, }, }, { .name = TVP5147_CH1, .board_info = { I2C_BOARD_INFO("tvp5146", 0x5c), .platform_data = &tvp5146_pdata, }, .input = INPUT_SVIDEO_VI2C_VI1C, .output = OUTPUT_10BIT_422_EMBEDDED_SYNC, .can_route = 1, .vpif_if = { .if_type = VPIF_IF_BT656, .hd_pol = 1, .vd_pol = 1, .fid_pol = 0, }, }, }; static const struct vpif_input dm6467_ch0_inputs[] = { { .input = { .index = 0, .name = "Composite", .type = V4L2_INPUT_TYPE_CAMERA, .std = TVP514X_STD_ALL, }, .subdev_name = TVP5147_CH0, }, }; static const struct vpif_input dm6467_ch1_inputs[] = { { .input = { .index = 0, .name = "S-Video", .type = V4L2_INPUT_TYPE_CAMERA, .std = TVP514X_STD_ALL, }, .subdev_name = TVP5147_CH1, }, }; static struct vpif_capture_config dm646x_vpif_capture_cfg = { .setup_input_path = setup_vpif_input_path, .setup_input_channel_mode = setup_vpif_input_channel_mode, .subdev_info = vpif_capture_sdev_info, .subdev_count = ARRAY_SIZE(vpif_capture_sdev_info), .chan_config[0] = { .inputs = dm6467_ch0_inputs, .input_count = ARRAY_SIZE(dm6467_ch0_inputs), }, .chan_config[1] = { .inputs = dm6467_ch1_inputs, .input_count = ARRAY_SIZE(dm6467_ch1_inputs), }, }; static void __init evm_init_video(void) { vpif_vidclkctl_reg = ioremap(VIDCLKCTL_OFFSET, 4); vpif_vsclkdis_reg = ioremap(VSCLKDIS_OFFSET, 4); if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg) { pr_err("Can't map VPIF VIDCLKCTL or VSCLKDIS registers\n"); return; } spin_lock_init(&vpif_reg_lock); dm646x_setup_vpif(&dm646x_vpif_display_config, &dm646x_vpif_capture_cfg); } static void __init evm_init_i2c(void) { davinci_init_i2c(&i2c_pdata); i2c_add_driver(&dm6467evm_cpld_driver); i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info)); evm_init_cpld(); evm_init_video(); } static void __init davinci_map_io(void) { dm646x_init(); } static __init void evm_init(void) { struct davinci_soc_info *soc_info = &davinci_soc_info; evm_init_i2c(); davinci_serial_init(&uart_config); dm646x_init_mcasp0(&dm646x_evm_snd_data[0]); dm646x_init_mcasp1(&dm646x_evm_snd_data[1]); if (HAS_ATA) dm646x_init_ide(); soc_info->emac_pdata->phy_mask = DM646X_EVM_PHY_MASK; soc_info->emac_pdata->mdio_max_freq = DM646X_EVM_MDIO_FREQUENCY; } static __init void davinci_dm646x_evm_irq_init(void) { davinci_irq_init(); } MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM") .phys_io = IO_PHYS, .io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc, .boot_params = (0x80000100), .map_io = davinci_map_io, .init_irq = davinci_dm646x_evm_irq_init, .timer = &davinci_timer, .init_machine = evm_init, MACHINE_END