board-dm646x-evm.c

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/*
 * 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 <media/adv7343.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 <linux/platform_data/i2c-davinci.h>
#include <linux/platform_data/mtd-davinci.h>
#include <mach/clock.h>
#include <mach/cdce949.h>
#include <linux/platform_data/mtd-davinci-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 struct vpif_output dm6467_ch0_outputs[] = {
    {
        .output = {
            .index = 0,
            .name = "Composite",
            .type = V4L2_OUTPUT_TYPE_ANALOG,
            .capabilities = V4L2_OUT_CAP_STD,
            .std = V4L2_STD_ALL,
        },
        .subdev_name = "adv7343",
        .output_route = ADV7343_COMPOSITE_ID,
    },
    {
        .output = {
            .index = 1,
            .name = "Component",
            .type = V4L2_OUTPUT_TYPE_ANALOG,
            .capabilities = V4L2_OUT_CAP_CUSTOM_TIMINGS,
        },
        .subdev_name = "adv7343",
        .output_route = ADV7343_COMPONENT_ID,
    },
    {
        .output = {
            .index = 2,
            .name = "S-Video",
            .type = V4L2_OUTPUT_TYPE_ANALOG,
            .capabilities = V4L2_OUT_CAP_STD,
            .std = V4L2_STD_ALL,
        },
        .subdev_name = "adv7343",
        .output_route = ADV7343_SVIDEO_ID,
    },
};

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),
    .chan_config[0] = {
        .outputs = dm6467_ch0_outputs,
        .output_count = ARRAY_SIZE(dm6467_ch0_outputs),
    },
    .card_name  = "DM646x EVM",
};

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;
}

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,
        },
    },
    {
        .name   = TVP5147_CH1,
        .board_info = {
            I2C_BOARD_INFO("tvp5146", 0x5c),
            .platform_data = &tvp5146_pdata,
        },
    },
};

static const struct vpif_input dm6467_ch0_inputs[] = {
    {
        .input = {
            .index = 0,
            .name = "Composite",
            .type = V4L2_INPUT_TYPE_CAMERA,
            .capabilities = V4L2_IN_CAP_STD,
            .std = TVP514X_STD_ALL,
        },
        .subdev_name = TVP5147_CH0,
        .input_route = INPUT_CVBS_VI2B,
        .output_route = OUTPUT_10BIT_422_EMBEDDED_SYNC,
    },
};

static const struct vpif_input dm6467_ch1_inputs[] = {
       {
        .input = {
            .index = 0,
            .name = "S-Video",
            .type = V4L2_INPUT_TYPE_CAMERA,
            .capabilities = V4L2_IN_CAP_STD,
            .std = TVP514X_STD_ALL,
        },
        .subdev_name = TVP5147_CH1,
        .input_route = INPUT_SVIDEO_VI2C_VI1C,
        .output_route = OUTPUT_10BIT_422_EMBEDDED_SYNC,
    },
};

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),
        .vpif_if = {
            .if_type = VPIF_IF_BT656,
            .hd_pol = 1,
            .vd_pol = 1,
            .fid_pol = 0,
        },
    },
    .chan_config[1] = {
        .inputs = dm6467_ch1_inputs,
        .input_count = ARRAY_SIZE(dm6467_ch1_inputs),
        .vpif_if = {
            .if_type = VPIF_IF_BT656,
            .hd_pol = 1,
            .vd_pol = 1,
            .fid_pol = 0,
        },
    },
};

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,
    .init_late  = davinci_init_late,
    .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,
    .init_late  = davinci_init_late,
    .dma_zone_size  = SZ_128M,
    .restart    = davinci_restart,
MACHINE_END