diff options
Diffstat (limited to 'arch/arm/mach-davinci/board-dm646x-evm.c')
| -rw-r--r-- | arch/arm/mach-davinci/board-dm646x-evm.c | 804 |
1 files changed, 804 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c new file mode 100644 index 00000000..d72ab948 --- /dev/null +++ b/arch/arm/mach-davinci/board-dm646x-evm.c @@ -0,0 +1,804 @@ +/* + * 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 <linux/kernel.h> +#include <linux/init.h> +#include <linux/leds.h> +#include <linux/gpio.h> +#include <linux/platform_device.h> +#include <linux/i2c.h> +#include <linux/i2c/at24.h> +#include <linux/i2c/pcf857x.h> + +#include <media/tvp514x.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/partitions.h> +#include <linux/clk.h> +#include <linux/export.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> + +#include <mach/common.h> +#include <mach/serial.h> +#include <mach/i2c.h> +#include <mach/nand.h> +#include <mach/clock.h> +#include <mach/cdce949.h> +#include <mach/aemif.h> + +#include "davinci.h" +#include "clock.h" + +#define NAND_BLOCK_SIZE SZ_128K + +/* Note: We are setting first partition as 'bootloader' constituting UBL, U-Boot + * and U-Boot environment this avoids dependency on any particular combination + * of UBL, U-Boot or flashing tools etc. + */ +static struct mtd_partition davinci_nand_partitions[] = { + { + /* UBL, U-Boot with environment */ + .name = "bootloader", + .offset = MTDPART_OFS_APPEND, + .size = 16 * NAND_BLOCK_SIZE, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = SZ_4M, + .mask_flags = 0, + }, { + .name = "filesystem", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + .mask_flags = 0, + } +}; + +static struct davinci_aemif_timing dm6467tevm_nandflash_timing = { + .wsetup = 29, + .wstrobe = 24, + .whold = 14, + .rsetup = 19, + .rstrobe = 33, + .rhold = 0, + .ta = 29, +}; + +static struct davinci_nand_pdata davinci_nand_data = { + .mask_cle = 0x80000, + .mask_ale = 0x40000, + .parts = davinci_nand_partitions, + .nr_parts = ARRAY_SIZE(davinci_nand_partitions), + .ecc_mode = NAND_ECC_HW, + .options = 0, +}; + +static struct resource davinci_nand_resources[] = { + { + .start = DM646X_ASYNC_EMIF_CS2_SPACE_BASE, + .end = DM646X_ASYNC_EMIF_CS2_SPACE_BASE + SZ_32M - 1, + .flags = IORESOURCE_MEM, + }, { + .start = DM646X_ASYNC_EMIF_CONTROL_BASE, + .end = DM646X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device davinci_nand_device = { + .name = "davinci_nand", + .id = 0, + + .num_resources = ARRAY_SIZE(davinci_nand_resources), + .resource = davinci_nand_resources, + + .dev = { + .platform_data = &davinci_nand_data, + }, +}; + +#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) + +/* 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 const 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, + .asp_chan_q = 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, + .asp_chan_q = 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), + }, + { + I2C_BOARD_INFO("cdce949", 0x6c), + }, +}; + +static struct davinci_i2c_platform_data i2c_pdata = { + .bus_freq = 100 /* kHz */, + .bus_delay = 0 /* usec */, +}; + +#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" + +/* spin lock for updating above registers */ +static spinlock_t vpif_reg_lock; + +static int set_vpif_clock(int mux_mode, int hd) +{ + unsigned long flags; + unsigned int value; + int val = 0; + int err = 0; + + if (!cpld_client) + return -ENXIO; + + /* disable the clock */ + spin_lock_irqsave(&vpif_reg_lock, flags); + value = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS)); + value |= (VIDCH3CLK | VIDCH2CLK); + __raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS)); + 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(DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL)); + value &= ~(VCH2CLK_MASK); + value &= ~(VCH3CLK_MASK); + + if (hd >= 1) + value |= (VCH2CLK_SYSCLK8 | VCH3CLK_SYSCLK8); + else + value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK); + + __raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL)); + + spin_lock_irqsave(&vpif_reg_lock, flags); + value = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS)); + /* enable the clock */ + value &= ~(VIDCH3CLK | VIDCH2CLK); + __raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS)); + 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 (!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(DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL)); + if (mux_mode) { + val &= VPIF_INPUT_TWO_CHANNEL; + value |= VIDCH1CLK; + } else { + val |= VPIF_INPUT_ONE_CHANNEL; + value &= ~VIDCH1CLK; + } + __raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL)); + 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) +{ + 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(); +} + +#define CDCE949_XIN_RATE 27000000 + +/* CDCE949 support - "lpsc" field is overridden to work as clock number */ +static struct clk cdce_clk_in = { + .name = "cdce_xin", + .rate = CDCE949_XIN_RATE, +}; + +static struct clk_lookup cdce_clks[] = { + CLK(NULL, "xin", &cdce_clk_in), + CLK(NULL, NULL, NULL), +}; + +static void __init cdce_clk_init(void) +{ + struct clk_lookup *c; + struct clk *clk; + + for (c = cdce_clks; c->clk; c++) { + clk = c->clk; + clkdev_add(c); + clk_register(clk); + } +} + +#define DM6467T_EVM_REF_FREQ 33000000 + +static void __init davinci_map_io(void) +{ + dm646x_init(); + + if (machine_is_davinci_dm6467tevm()) + davinci_set_refclk_rate(DM6467T_EVM_REF_FREQ); + + cdce_clk_init(); +} + +static struct davinci_uart_config uart_config __initdata = { + .enabled_uarts = (1 << 0), +}; + +#define DM646X_EVM_PHY_ID "davinci_mdio-0:01" +/* + * The following EDMA channels/slots are not being used by drivers (for + * example: Timer, GPIO, UART events etc) on dm646x, hence they are being + * reserved for codecs on the DSP side. + */ +static const s16 dm646x_dma_rsv_chans[][2] = { + /* (offset, number) */ + { 0, 4}, + {13, 3}, + {24, 4}, + {30, 2}, + {54, 3}, + {-1, -1} +}; + +static const s16 dm646x_dma_rsv_slots[][2] = { + /* (offset, number) */ + { 0, 4}, + {13, 3}, + {24, 4}, + {30, 2}, + {54, 3}, + {128, 384}, + {-1, -1} +}; + +static struct edma_rsv_info dm646x_edma_rsv[] = { + { + .rsv_chans = dm646x_dma_rsv_chans, + .rsv_slots = dm646x_dma_rsv_slots, + }, +}; + +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 (machine_is_davinci_dm6467tevm()) + davinci_nand_data.timing = &dm6467tevm_nandflash_timing; + + platform_device_register(&davinci_nand_device); + + dm646x_init_edma(dm646x_edma_rsv); + + if (HAS_ATA) + davinci_init_ide(); + + soc_info->emac_pdata->phy_id = DM646X_EVM_PHY_ID; +} + +MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM") + .atag_offset = 0x100, + .map_io = davinci_map_io, + .init_irq = davinci_irq_init, + .timer = &davinci_timer, + .init_machine = evm_init, + .dma_zone_size = SZ_128M, + .restart = davinci_restart, +MACHINE_END + +MACHINE_START(DAVINCI_DM6467TEVM, "DaVinci DM6467T EVM") + .atag_offset = 0x100, + .map_io = davinci_map_io, + .init_irq = davinci_irq_init, + .timer = &davinci_timer, + .init_machine = evm_init, + .dma_zone_size = SZ_128M, + .restart = davinci_restart, +MACHINE_END + |