tcm-bf518.c

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/*
 * Copyright 2004-2009 Analog Devices Inc.
 *                2005 National ICT Australia (NICTA)
 *                      Aidan Williams <[email protected]>
 *
 * Licensed under the GPL-2 or later.
 */

#include <linux/device.h>
#include <linux/etherdevice.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>

#include <linux/i2c.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <asm/dma.h>
#include <asm/bfin5xx_spi.h>
#include <asm/reboot.h>
#include <asm/portmux.h>
#include <asm/dpmc.h>
#include <asm/bfin_sdh.h>
#include <linux/spi/ad7877.h>
#include <net/dsa.h>

/*
 * Name the Board for the /proc/cpuinfo
 */
const char bfin_board_name[] = "Bluetechnix TCM-BF518";

/*
 *  Driver needs to know address, irq and flag pin.
 */

#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
static struct mtd_partition tcm_partitions[] = {
    {
        .name       = "bootloader(nor)",
        .size       = 0x40000,
        .offset     = 0,
    },
    {
        .name       = "linux(nor)",
        .size       = 0x1C0000,
        .offset     = MTDPART_OFS_APPEND,
    }
};

static struct physmap_flash_data tcm_flash_data = {
    .width      = 2,
    .parts      = tcm_partitions,
    .nr_parts   = ARRAY_SIZE(tcm_partitions),
};

static struct resource tcm_flash_resource = {
    .start = 0x20000000,
    .end   = 0x201fffff,
    .flags = IORESOURCE_MEM,
};

static struct platform_device tcm_flash_device = {
    .name          = "physmap-flash",
    .id            = 0,
    .dev = {
        .platform_data = &tcm_flash_data,
    },
    .num_resources = 1,
    .resource      = &tcm_flash_resource,
};
#endif

#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
static struct platform_device rtc_device = {
    .name = "rtc-bfin",
    .id   = -1,
};
#endif

#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
#include <linux/bfin_mac.h>
static const unsigned short bfin_mac_peripherals[] = P_MII0;

static struct bfin_phydev_platform_data bfin_phydev_data[] = {
    {
        .addr = 1,
        .irq = IRQ_MAC_PHYINT,
    },
};

static struct bfin_mii_bus_platform_data bfin_mii_bus_data = {
    .phydev_number = 1,
    .phydev_data = bfin_phydev_data,
    .phy_mode = PHY_INTERFACE_MODE_MII,
    .mac_peripherals = bfin_mac_peripherals,
};

static struct platform_device bfin_mii_bus = {
    .name = "bfin_mii_bus",
    .dev = {
        .platform_data = &bfin_mii_bus_data,
    }
};

static struct platform_device bfin_mac_device = {
    .name = "bfin_mac",
    .dev = {
        .platform_data = &bfin_mii_bus,
    }
};
#endif

#if defined(CONFIG_MTD_M25P80) \
    || defined(CONFIG_MTD_M25P80_MODULE)
static struct mtd_partition bfin_spi_flash_partitions[] = {
    {
        .name = "bootloader(spi)",
        .size = 0x00040000,
        .offset = 0,
        .mask_flags = MTD_CAP_ROM
    }, {
        .name = "linux kernel(spi)",
        .size = MTDPART_SIZ_FULL,
        .offset = MTDPART_OFS_APPEND,
    }
};

static struct flash_platform_data bfin_spi_flash_data = {
    .name = "m25p80",
    .parts = bfin_spi_flash_partitions,
    .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
    .type = "m25p16",
};

/* SPI flash chip (m25p64) */
static struct bfin5xx_spi_chip spi_flash_chip_info = {
    .enable_dma = 0,         /* use dma transfer with this chip*/
};
#endif

#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
static struct bfin5xx_spi_chip mmc_spi_chip_info = {
    .enable_dma = 0,
};
#endif

#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
static const struct ad7877_platform_data bfin_ad7877_ts_info = {
    .model          = 7877,
    .vref_delay_usecs   = 50,   /* internal, no capacitor */
    .x_plate_ohms       = 419,
    .y_plate_ohms       = 486,
    .pressure_max       = 1000,
    .pressure_min       = 0,
    .stopacq_polarity   = 1,
    .first_conversion_delay = 3,
    .acquisition_time   = 1,
    .averaging      = 1,
    .pen_down_acc_interval  = 1,
};
#endif

static struct spi_board_info bfin_spi_board_info[] __initdata = {
#if defined(CONFIG_MTD_M25P80) \
    || defined(CONFIG_MTD_M25P80_MODULE)
    {
        /* the modalias must be the same as spi device driver name */
        .modalias = "m25p80", /* Name of spi_driver for this device */
        .max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
        .bus_num = 0, /* Framework bus number */
        .chip_select = 2, /* SPI0_SSEL2 */
        .platform_data = &bfin_spi_flash_data,
        .controller_data = &spi_flash_chip_info,
        .mode = SPI_MODE_3,
    },
#endif

#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
    {
        .modalias = "mmc_spi",
        .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
        .bus_num = 0,
        .chip_select = 5,
        .controller_data = &mmc_spi_chip_info,
        .mode = SPI_MODE_3,
    },
#endif
#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
    {
        .modalias       = "ad7877",
        .platform_data      = &bfin_ad7877_ts_info,
        .irq            = IRQ_PF8,
        .max_speed_hz   = 12500000,     /* max spi clock (SCK) speed in HZ */
        .bus_num    = 0,
        .chip_select  = 2,
    },
#endif
#if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
     && defined(CONFIG_SND_SOC_WM8731_SPI)
    {
        .modalias   = "wm8731",
        .max_speed_hz   = 3125000,     /* max spi clock (SCK) speed in HZ */
        .bus_num    = 0,
        .chip_select    = 5,
        .mode = SPI_MODE_0,
    },
#endif
#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
    {
        .modalias = "spidev",
        .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
        .bus_num = 0,
        .chip_select = 1,
    },
#endif
#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
    {
        .modalias = "bfin-lq035q1-spi",
        .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
        .bus_num = 0,
        .chip_select = 1,
        .mode = SPI_CPHA | SPI_CPOL,
    },
#endif
};

/* SPI controller data */
#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
/* SPI (0) */
static struct bfin5xx_spi_master bfin_spi0_info = {
    .num_chipselect = 6,
    .enable_dma = 1,  /* master has the ability to do dma transfer */
    .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
};

static struct resource bfin_spi0_resource[] = {
    [0] = {
        .start = SPI0_REGBASE,
        .end   = SPI0_REGBASE + 0xFF,
        .flags = IORESOURCE_MEM,
        },
    [1] = {
        .start = CH_SPI0,
        .end   = CH_SPI0,
        .flags = IORESOURCE_DMA,
    },
    [2] = {
        .start = IRQ_SPI0,
        .end   = IRQ_SPI0,
        .flags = IORESOURCE_IRQ,
    },
};

static struct platform_device bfin_spi0_device = {
    .name = "bfin-spi",
    .id = 0, /* Bus number */
    .num_resources = ARRAY_SIZE(bfin_spi0_resource),
    .resource = bfin_spi0_resource,
    .dev = {
        .platform_data = &bfin_spi0_info, /* Passed to driver */
    },
};

/* SPI (1) */
static struct bfin5xx_spi_master bfin_spi1_info = {
    .num_chipselect = 6,
    .enable_dma = 1,  /* master has the ability to do dma transfer */
    .pin_req = {P_SPI1_SCK, P_SPI1_MISO, P_SPI1_MOSI, 0},
};

static struct resource bfin_spi1_resource[] = {
    [0] = {
        .start = SPI1_REGBASE,
        .end   = SPI1_REGBASE + 0xFF,
        .flags = IORESOURCE_MEM,
        },
    [1] = {
        .start = CH_SPI1,
        .end   = CH_SPI1,
        .flags = IORESOURCE_DMA,
    },
    [2] = {
        .start = IRQ_SPI1,
        .end   = IRQ_SPI1,
        .flags = IORESOURCE_IRQ,
    },
};

static struct platform_device bfin_spi1_device = {
    .name = "bfin-spi",
    .id = 1, /* Bus number */
    .num_resources = ARRAY_SIZE(bfin_spi1_resource),
    .resource = bfin_spi1_resource,
    .dev = {
        .platform_data = &bfin_spi1_info, /* Passed to driver */
    },
};
#endif  /* spi master and devices */

#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
#ifdef CONFIG_SERIAL_BFIN_UART0
static struct resource bfin_uart0_resources[] = {
    {
        .start = UART0_THR,
        .end = UART0_GCTL+2,
        .flags = IORESOURCE_MEM,
    },
    {
        .start = IRQ_UART0_TX,
        .end = IRQ_UART0_TX,
        .flags = IORESOURCE_IRQ,
    },
    {
        .start = IRQ_UART0_RX,
        .end = IRQ_UART0_RX,
        .flags = IORESOURCE_IRQ,
    },
    {
        .start = IRQ_UART0_ERROR,
        .end = IRQ_UART0_ERROR,
        .flags = IORESOURCE_IRQ,
    },
    {
        .start = CH_UART0_TX,
        .end = CH_UART0_TX,
        .flags = IORESOURCE_DMA,
    },
    {
        .start = CH_UART0_RX,
        .end = CH_UART0_RX,
        .flags = IORESOURCE_DMA,
    },
};

static unsigned short bfin_uart0_peripherals[] = {
    P_UART0_TX, P_UART0_RX, 0
};

static struct platform_device bfin_uart0_device = {
    .name = "bfin-uart",
    .id = 0,
    .num_resources = ARRAY_SIZE(bfin_uart0_resources),
    .resource = bfin_uart0_resources,
    .dev = {
        .platform_data = &bfin_uart0_peripherals, /* Passed to driver */
    },
};
#endif
#ifdef CONFIG_SERIAL_BFIN_UART1
static struct resource bfin_uart1_resources[] = {
    {
        .start = UART1_THR,
        .end = UART1_GCTL+2,
        .flags = IORESOURCE_MEM,
    },
    {
        .start = IRQ_UART1_TX,
        .end = IRQ_UART1_TX,
        .flags = IORESOURCE_IRQ,
    },
    {
        .start = IRQ_UART1_RX,
        .end = IRQ_UART1_RX,
        .flags = IORESOURCE_IRQ,
    },
    {
        .start = IRQ_UART1_ERROR,
        .end = IRQ_UART1_ERROR,
        .flags = IORESOURCE_IRQ,
    },
    {
        .start = CH_UART1_TX,
        .end = CH_UART1_TX,
        .flags = IORESOURCE_DMA,
    },
    {
        .start = CH_UART1_RX,
        .end = CH_UART1_RX,
        .flags = IORESOURCE_DMA,
    },
};

static unsigned short bfin_uart1_peripherals[] = {
    P_UART1_TX, P_UART1_RX, 0
};

static struct platform_device bfin_uart1_device = {
    .name = "bfin-uart",
    .id = 1,
    .num_resources = ARRAY_SIZE(bfin_uart1_resources),
    .resource = bfin_uart1_resources,
    .dev = {
        .platform_data = &bfin_uart1_peripherals, /* Passed to driver */
    },
};
#endif
#endif

#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
#ifdef CONFIG_BFIN_SIR0
static struct resource bfin_sir0_resources[] = {
    {
        .start = 0xFFC00400,
        .end = 0xFFC004FF,
        .flags = IORESOURCE_MEM,
    },
    {
        .start = IRQ_UART0_RX,
        .end = IRQ_UART0_RX+1,
        .flags = IORESOURCE_IRQ,
    },
    {
        .start = CH_UART0_RX,
        .end = CH_UART0_RX+1,
        .flags = IORESOURCE_DMA,
    },
};

static struct platform_device bfin_sir0_device = {
    .name = "bfin_sir",
    .id = 0,
    .num_resources = ARRAY_SIZE(bfin_sir0_resources),
    .resource = bfin_sir0_resources,
};
#endif
#ifdef CONFIG_BFIN_SIR1
static struct resource bfin_sir1_resources[] = {
    {
        .start = 0xFFC02000,
        .end = 0xFFC020FF,
        .flags = IORESOURCE_MEM,
    },
    {
        .start = IRQ_UART1_RX,
        .end = IRQ_UART1_RX+1,
        .flags = IORESOURCE_IRQ,
    },
    {
        .start = CH_UART1_RX,
        .end = CH_UART1_RX+1,
        .flags = IORESOURCE_DMA,
    },
};

static struct platform_device bfin_sir1_device = {
    .name = "bfin_sir",
    .id = 1,
    .num_resources = ARRAY_SIZE(bfin_sir1_resources),
    .resource = bfin_sir1_resources,
};
#endif
#endif

#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};

static struct resource bfin_twi0_resource[] = {
    [0] = {
        .start = TWI0_REGBASE,
        .end   = TWI0_REGBASE,
        .flags = IORESOURCE_MEM,
    },
    [1] = {
        .start = IRQ_TWI,
        .end   = IRQ_TWI,
        .flags = IORESOURCE_IRQ,
    },
};

static struct platform_device i2c_bfin_twi_device = {
    .name = "i2c-bfin-twi",
    .id = 0,
    .num_resources = ARRAY_SIZE(bfin_twi0_resource),
    .resource = bfin_twi0_resource,
    .dev = {
        .platform_data = &bfin_twi0_pins,
    },
};
#endif

static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
    {
        I2C_BOARD_INFO("pcf8574_lcd", 0x22),
    },
#endif
#if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
    {
        I2C_BOARD_INFO("pcf8574_keypad", 0x27),
        .irq = IRQ_PF8,
    },
#endif
};

#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
#ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
static struct resource bfin_sport0_uart_resources[] = {
    {
        .start = SPORT0_TCR1,
        .end = SPORT0_MRCS3+4,
        .flags = IORESOURCE_MEM,
    },
    {
        .start = IRQ_SPORT0_RX,
        .end = IRQ_SPORT0_RX+1,
        .flags = IORESOURCE_IRQ,
    },
    {
        .start = IRQ_SPORT0_ERROR,
        .end = IRQ_SPORT0_ERROR,
        .flags = IORESOURCE_IRQ,
    },
};

static unsigned short bfin_sport0_peripherals[] = {
    P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
    P_SPORT0_DRPRI, P_SPORT0_RSCLK, 0
};

static struct platform_device bfin_sport0_uart_device = {
    .name = "bfin-sport-uart",
    .id = 0,
    .num_resources = ARRAY_SIZE(bfin_sport0_uart_resources),
    .resource = bfin_sport0_uart_resources,
    .dev = {
        .platform_data = &bfin_sport0_peripherals, /* Passed to driver */
    },
};
#endif
#ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
static struct resource bfin_sport1_uart_resources[] = {
    {
        .start = SPORT1_TCR1,
        .end = SPORT1_MRCS3+4,
        .flags = IORESOURCE_MEM,
    },
    {
        .start = IRQ_SPORT1_RX,
        .end = IRQ_SPORT1_RX+1,
        .flags = IORESOURCE_IRQ,
    },
    {
        .start = IRQ_SPORT1_ERROR,
        .end = IRQ_SPORT1_ERROR,
        .flags = IORESOURCE_IRQ,
    },
};

static unsigned short bfin_sport1_peripherals[] = {
    P_SPORT1_TFS, P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS,
    P_SPORT1_DRPRI, P_SPORT1_RSCLK, 0
};

static struct platform_device bfin_sport1_uart_device = {
    .name = "bfin-sport-uart",
    .id = 1,
    .num_resources = ARRAY_SIZE(bfin_sport1_uart_resources),
    .resource = bfin_sport1_uart_resources,
    .dev = {
        .platform_data = &bfin_sport1_peripherals, /* Passed to driver */
    },
};
#endif
#endif

#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
#include <linux/input.h>
#include <linux/gpio_keys.h>

static struct gpio_keys_button bfin_gpio_keys_table[] = {
    {BTN_0, GPIO_PG0, 1, "gpio-keys: BTN0"},
    {BTN_1, GPIO_PG13, 1, "gpio-keys: BTN1"},
};

static struct gpio_keys_platform_data bfin_gpio_keys_data = {
    .buttons        = bfin_gpio_keys_table,
    .nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
};

static struct platform_device bfin_device_gpiokeys = {
    .name      = "gpio-keys",
    .dev = {
        .platform_data = &bfin_gpio_keys_data,
    },
};
#endif

#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)

static struct bfin_sd_host bfin_sdh_data = {
    .dma_chan = CH_RSI,
    .irq_int0 = IRQ_RSI_INT0,
    .pin_req = {P_RSI_DATA0, P_RSI_DATA1, P_RSI_DATA2, P_RSI_DATA3, P_RSI_CMD, P_RSI_CLK, 0},
};

static struct platform_device bf51x_sdh_device = {
    .name = "bfin-sdh",
    .id = 0,
    .dev = {
        .platform_data = &bfin_sdh_data,
    },
};
#endif

static const unsigned int cclk_vlev_datasheet[] =
{
    VRPAIR(VLEV_100, 400000000),
    VRPAIR(VLEV_105, 426000000),
    VRPAIR(VLEV_110, 500000000),
    VRPAIR(VLEV_115, 533000000),
    VRPAIR(VLEV_120, 600000000),
};

static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
    .tuple_tab = cclk_vlev_datasheet,
    .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
    .vr_settling_time = 25 /* us */,
};

static struct platform_device bfin_dpmc = {
    .name = "bfin dpmc",
    .dev = {
        .platform_data = &bfin_dmpc_vreg_data,
    },
};

static struct platform_device *tcm_devices[] __initdata = {

    &bfin_dpmc,

#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
    &rtc_device,
#endif

#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
    &bfin_mii_bus,
    &bfin_mac_device,
#endif

#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
    &bfin_spi0_device,
    &bfin_spi1_device,
#endif

#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
#ifdef CONFIG_SERIAL_BFIN_UART0
    &bfin_uart0_device,
#endif
#ifdef CONFIG_SERIAL_BFIN_UART1
    &bfin_uart1_device,
#endif
#endif

#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
#ifdef CONFIG_BFIN_SIR0
    &bfin_sir0_device,
#endif
#ifdef CONFIG_BFIN_SIR1
    &bfin_sir1_device,
#endif
#endif

#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
    &i2c_bfin_twi_device,
#endif

#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
#ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
    &bfin_sport0_uart_device,
#endif
#ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
    &bfin_sport1_uart_device,
#endif
#endif

#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
    &bfin_device_gpiokeys,
#endif

#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
    &bf51x_sdh_device,
#endif

#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
    &tcm_flash_device,
#endif
};

static int __init tcm_init(void)
{
    printk(KERN_INFO "%s(): registering device resources\n", __func__);
    i2c_register_board_info(0, bfin_i2c_board_info,
                ARRAY_SIZE(bfin_i2c_board_info));
    platform_add_devices(tcm_devices, ARRAY_SIZE(tcm_devices));
    spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
    return 0;
}

arch_initcall(tcm_init);

static struct platform_device *tcm_early_devices[] __initdata = {
#if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
#ifdef CONFIG_SERIAL_BFIN_UART0
    &bfin_uart0_device,
#endif
#ifdef CONFIG_SERIAL_BFIN_UART1
    &bfin_uart1_device,
#endif
#endif

#if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
#ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
    &bfin_sport0_uart_device,
#endif
#ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
    &bfin_sport1_uart_device,
#endif
#endif
};

void __init native_machine_early_platform_add_devices(void)
{
    printk(KERN_INFO "register early platform devices\n");
    early_platform_add_devices(tcm_early_devices,
        ARRAY_SIZE(tcm_early_devices));
}

void native_machine_restart(char *cmd)
{
    /* workaround reboot hang when booting from SPI */
    if ((bfin_read_SYSCR() & 0x7) == 0x3)
        bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
}

int bfin_get_ether_addr(char *addr)
{
    return 1;
}
EXPORT_SYMBOL(bfin_get_ether_addr);