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cm_bf548.c

/*
 * File:         arch/blackfin/mach-bf548/boards/cm_bf548.c
 * Based on:     arch/blackfin/mach-bf537/boards/ezkit.c
 * Author:       Aidan Williams <aidan@nicta.com.au>
 *
 * Created:
 * Description:
 *
 * Modified:
 *               Copyright 2005 National ICT Australia (NICTA)
 *               Copyright 2004-2008 Analog Devices Inc.
 *
 * Bugs:         Enter bugs at http://blackfin.uclinux.org/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see the file COPYING, or write
 * to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/usb/musb.h>
#include <asm/bfin5xx_spi.h>
#include <asm/dma.h>
#include <asm/gpio.h>
#include <asm/nand.h>
#include <asm/portmux.h>
#include <mach/bf54x_keys.h>
#include <asm/dpmc.h>
#include <linux/input.h>
#include <linux/spi/ad7877.h>

/*
 * Name the Board for the /proc/cpuinfo
 */
const char bfin_board_name[] = "Bluetechnix CM-BF548";

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

#if defined(CONFIG_FB_BF54X_LQ043) || defined(CONFIG_FB_BF54X_LQ043_MODULE)

#include <mach/bf54x-lq043.h>

static struct bfin_bf54xfb_mach_info bf54x_lq043_data = {
      .width =    480,
      .height =   272,
      .xres =           {480, 480, 480},
      .yres =           {272, 272, 272},
      .bpp =            {24, 24, 24},
      .disp =           GPIO_PE3,
};

static struct resource bf54x_lq043_resources[] = {
      {
            .start = IRQ_EPPI0_ERR,
            .end = IRQ_EPPI0_ERR,
            .flags = IORESOURCE_IRQ,
      },
};

static struct platform_device bf54x_lq043_device = {
      .name       = "bf54x-lq043",
      .id         = -1,
      .num_resources    = ARRAY_SIZE(bf54x_lq043_resources),
      .resource   = bf54x_lq043_resources,
      .dev        = {
            .platform_data = &bf54x_lq043_data,
      },
};
#endif

#if defined(CONFIG_KEYBOARD_BFIN) || defined(CONFIG_KEYBOARD_BFIN_MODULE)
static unsigned int bf548_keymap[] = {
      KEYVAL(0, 0, KEY_ENTER),
      KEYVAL(0, 1, KEY_HELP),
      KEYVAL(0, 2, KEY_0),
      KEYVAL(0, 3, KEY_BACKSPACE),
      KEYVAL(1, 0, KEY_TAB),
      KEYVAL(1, 1, KEY_9),
      KEYVAL(1, 2, KEY_8),
      KEYVAL(1, 3, KEY_7),
      KEYVAL(2, 0, KEY_DOWN),
      KEYVAL(2, 1, KEY_6),
      KEYVAL(2, 2, KEY_5),
      KEYVAL(2, 3, KEY_4),
      KEYVAL(3, 0, KEY_UP),
      KEYVAL(3, 1, KEY_3),
      KEYVAL(3, 2, KEY_2),
      KEYVAL(3, 3, KEY_1),
};

static struct bfin_kpad_platform_data bf54x_kpad_data = {
      .rows             = 4,
      .cols             = 4,
      .keymap           = bf548_keymap,
      .keymapsize             = ARRAY_SIZE(bf548_keymap),
      .repeat                 = 0,
      .debounce_time          = 5000,     /* ns (5ms) */
      .coldrive_time          = 1000, /* ns (1ms) */
      .keyup_test_interval    = 50, /* ms (50ms) */
};

static struct resource bf54x_kpad_resources[] = {
      {
            .start = IRQ_KEY,
            .end = IRQ_KEY,
            .flags = IORESOURCE_IRQ,
      },
};

static struct platform_device bf54x_kpad_device = {
      .name       = "bf54x-keys",
      .id         = -1,
      .num_resources    = ARRAY_SIZE(bf54x_kpad_resources),
      .resource   = bf54x_kpad_resources,
      .dev        = {
            .platform_data = &bf54x_kpad_data,
      },
};
#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_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
static struct resource bfin_uart_resources[] = {
#ifdef CONFIG_SERIAL_BFIN_UART0
      {
            .start = 0xFFC00400,
            .end = 0xFFC004FF,
            .flags = IORESOURCE_MEM,
      },
#endif
#ifdef CONFIG_SERIAL_BFIN_UART1
      {
            .start = 0xFFC02000,
            .end = 0xFFC020FF,
            .flags = IORESOURCE_MEM,
      },
#endif
#ifdef CONFIG_SERIAL_BFIN_UART2
      {
            .start = 0xFFC02100,
            .end = 0xFFC021FF,
            .flags = IORESOURCE_MEM,
      },
#endif
#ifdef CONFIG_SERIAL_BFIN_UART3
      {
            .start = 0xFFC03100,
            .end = 0xFFC031FF,
            .flags = IORESOURCE_MEM,
      },
#endif
};

static struct platform_device bfin_uart_device = {
      .name = "bfin-uart",
      .id = 1,
      .num_resources = ARRAY_SIZE(bfin_uart_resources),
      .resource = bfin_uart_resources,
};
#endif

#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
static struct resource bfin_sir_resources[] = {
#ifdef CONFIG_BFIN_SIR0
      {
            .start = 0xFFC00400,
            .end = 0xFFC004FF,
            .flags = IORESOURCE_MEM,
      },
#endif
#ifdef CONFIG_BFIN_SIR1
      {
            .start = 0xFFC02000,
            .end = 0xFFC020FF,
            .flags = IORESOURCE_MEM,
      },
#endif
#ifdef CONFIG_BFIN_SIR2
      {
            .start = 0xFFC02100,
            .end = 0xFFC021FF,
            .flags = IORESOURCE_MEM,
      },
#endif
#ifdef CONFIG_BFIN_SIR3
      {
            .start = 0xFFC03100,
            .end = 0xFFC031FF,
            .flags = IORESOURCE_MEM,
      },
#endif
};

static struct platform_device bfin_sir_device = {
      .name = "bfin_sir",
      .id = 0,
      .num_resources = ARRAY_SIZE(bfin_sir_resources),
      .resource = bfin_sir_resources,
};
#endif

#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
static struct resource smsc911x_resources[] = {
      {
            .name = "smsc911x-memory",
            .start = 0x24000000,
            .end = 0x24000000 + 0xFF,
            .flags = IORESOURCE_MEM,
      },
      {
            .start = IRQ_PE6,
            .end = IRQ_PE6,
            .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
      },
};
static struct platform_device smsc911x_device = {
      .name = "smsc911x",
      .id = 0,
      .num_resources = ARRAY_SIZE(smsc911x_resources),
      .resource = smsc911x_resources,
};
#endif

#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
static struct resource musb_resources[] = {
      [0] = {
            .start      = 0xFFC03C00,
            .end  = 0xFFC040FF,
            .flags      = IORESOURCE_MEM,
      },
      [1] = {     /* general IRQ */
            .start      = IRQ_USB_INT0,
            .end  = IRQ_USB_INT0,
            .flags      = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
      },
      [2] = {     /* DMA IRQ */
            .start      = IRQ_USB_DMA,
            .end  = IRQ_USB_DMA,
            .flags      = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
      },
};

static struct musb_hdrc_config musb_config = {
      .multipoint = 0,
      .dyn_fifo   = 0,
      .soft_con   = 1,
      .dma        = 1,
      .num_eps    = 7,
      .dma_channels     = 7,
      .gpio_vrsel = GPIO_PH6,
};

static struct musb_hdrc_platform_data musb_plat = {
#if defined(CONFIG_USB_MUSB_OTG)
      .mode       = MUSB_OTG,
#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
      .mode       = MUSB_HOST,
#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
      .mode       = MUSB_PERIPHERAL,
#endif
      .config           = &musb_config,
};

static u64 musb_dmamask = ~(u32)0;

static struct platform_device musb_device = {
      .name       = "musb_hdrc",
      .id         = 0,
      .dev = {
            .dma_mask         = &musb_dmamask,
            .coherent_dma_mask      = 0xffffffff,
            .platform_data          = &musb_plat,
      },
      .num_resources    = ARRAY_SIZE(musb_resources),
      .resource   = musb_resources,
};
#endif

#if defined(CONFIG_PATA_BF54X) || defined(CONFIG_PATA_BF54X_MODULE)
static struct resource bfin_atapi_resources[] = {
      {
            .start = 0xFFC03800,
            .end = 0xFFC0386F,
            .flags = IORESOURCE_MEM,
      },
      {
            .start = IRQ_ATAPI_ERR,
            .end = IRQ_ATAPI_ERR,
            .flags = IORESOURCE_IRQ,
      },
};

static struct platform_device bfin_atapi_device = {
      .name = "pata-bf54x",
      .id = -1,
      .num_resources = ARRAY_SIZE(bfin_atapi_resources),
      .resource = bfin_atapi_resources,
};
#endif

#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
static struct mtd_partition partition_info[] = {
      {
            .name = "linux kernel(nand)",
            .offset = 0,
            .size = 4 * 1024 * 1024,
      },
      {
            .name = "file system(nand)",
            .offset = 4 * 1024 * 1024,
            .size = (256 - 4) * 1024 * 1024,
      },
};

static struct bf5xx_nand_platform bf5xx_nand_platform = {
      .page_size = NFC_PG_SIZE_256,
      .data_width = NFC_NWIDTH_8,
      .partitions = partition_info,
      .nr_partitions = ARRAY_SIZE(partition_info),
      .rd_dly = 3,
      .wr_dly = 3,
};

static struct resource bf5xx_nand_resources[] = {
      {
            .start = 0xFFC03B00,
            .end = 0xFFC03B4F,
            .flags = IORESOURCE_MEM,
      },
      {
            .start = CH_NFC,
            .end = CH_NFC,
            .flags = IORESOURCE_IRQ,
      },
};

static struct platform_device bf5xx_nand_device = {
      .name = "bf5xx-nand",
      .id = 0,
      .num_resources = ARRAY_SIZE(bf5xx_nand_resources),
      .resource = bf5xx_nand_resources,
      .dev = {
            .platform_data = &bf5xx_nand_platform,
      },
};
#endif

#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
static struct platform_device bf54x_sdh_device = {
      .name = "bfin-sdh",
      .id = 0,
};
#endif

#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
/* all SPI peripherals info goes here */
#if defined(CONFIG_MTD_M25P80) \
      || defined(CONFIG_MTD_M25P80_MODULE)
/* SPI flash chip (m25p16) */
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 = 0x1c0000,
            .offset = 0x40000
      }
};

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",
};

static struct bfin5xx_spi_chip spi_flash_chip_info = {
      .enable_dma = 0,         /* use dma transfer with this chip*/
      .bits_per_word = 8,
      .cs_change_per_word = 0,
};
#endif

#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
static struct bfin5xx_spi_chip spi_ad7877_chip_info = {
      .cs_change_per_word = 0,
      .enable_dma = 0,
      .bits_per_word = 16,
};

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

#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
static struct bfin5xx_spi_chip spidev_chip_info = {
      .enable_dma = 0,
      .bits_per_word = 8,
};
#endif

static struct spi_board_info bf54x_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 = 1, /* SPI_SSEL1*/
            .platform_data = &bfin_spi_flash_data,
            .controller_data = &spi_flash_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_PJ11,
      .max_speed_hz           = 12500000,     /* max spi clock (SCK) speed in HZ */
      .bus_num          = 0,
      .chip_select            = 2,
      .controller_data = &spi_ad7877_chip_info,
},
#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,
            .controller_data = &spidev_chip_info,
      },
#endif
};

/* SPI (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_IRQ,
      }
};

/* SPI (1) */
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_IRQ,
      }
};

/* SPI controller data */
static struct bfin5xx_spi_master bf54x_spi_master_info0 = {
      .num_chipselect = 8,
      .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 platform_device bf54x_spi_master0 = {
      .name = "bfin-spi",
      .id = 0, /* Bus number */
      .num_resources = ARRAY_SIZE(bfin_spi0_resource),
      .resource = bfin_spi0_resource,
      .dev = {
            .platform_data = &bf54x_spi_master_info0, /* Passed to driver */
            },
};

static struct bfin5xx_spi_master bf54x_spi_master_info1 = {
      .num_chipselect = 8,
      .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 platform_device bf54x_spi_master1 = {
      .name = "bfin-spi",
      .id = 1, /* Bus number */
      .num_resources = ARRAY_SIZE(bfin_spi1_resource),
      .resource = bfin_spi1_resource,
      .dev = {
            .platform_data = &bf54x_spi_master_info1, /* Passed to driver */
            },
};
#endif  /* spi master and devices */

#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
static struct resource bfin_twi0_resource[] = {
      [0] = {
            .start = TWI0_REGBASE,
            .end   = TWI0_REGBASE + 0xFF,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_TWI0,
            .end   = IRQ_TWI0,
            .flags = IORESOURCE_IRQ,
      },
};

static struct platform_device i2c_bfin_twi0_device = {
      .name = "i2c-bfin-twi",
      .id = 0,
      .num_resources = ARRAY_SIZE(bfin_twi0_resource),
      .resource = bfin_twi0_resource,
};

#if !defined(CONFIG_BF542)    /* The BF542 only has 1 TWI */
static struct resource bfin_twi1_resource[] = {
      [0] = {
            .start = TWI1_REGBASE,
            .end   = TWI1_REGBASE + 0xFF,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_TWI1,
            .end   = IRQ_TWI1,
            .flags = IORESOURCE_IRQ,
      },
};

static struct platform_device i2c_bfin_twi1_device = {
      .name = "i2c-bfin-twi",
      .id = 1,
      .num_resources = ARRAY_SIZE(bfin_twi1_resource),
      .resource = bfin_twi1_resource,
};
#endif
#endif

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

static struct gpio_keys_button bfin_gpio_keys_table[] = {
      {BTN_0, GPIO_PH7, 1, "gpio-keys: BTN0"},
};

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

static const unsigned int cclk_vlev_datasheet[] =
{
/*
 * Internal VLEV BF54XSBBC1533
 ****temporarily using these values until data sheet is updated
 */
      VRPAIR(VLEV_085, 150000000),
      VRPAIR(VLEV_090, 250000000),
      VRPAIR(VLEV_110, 276000000),
      VRPAIR(VLEV_115, 301000000),
      VRPAIR(VLEV_120, 525000000),
      VRPAIR(VLEV_125, 550000000),
      VRPAIR(VLEV_130, 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 *cm_bf548_devices[] __initdata = {

      &bfin_dpmc,

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

#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
      &bfin_uart_device,
#endif

#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
      &bfin_sir_device,
#endif

#if defined(CONFIG_FB_BF54X_LQ043) || defined(CONFIG_FB_BF54X_LQ043_MODULE)
      &bf54x_lq043_device,
#endif

#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
      &smsc911x_device,
#endif

#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
      &musb_device,
#endif

#if defined(CONFIG_PATA_BF54X) || defined(CONFIG_PATA_BF54X_MODULE)
      &bfin_atapi_device,
#endif

#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
      &bf5xx_nand_device,
#endif

#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
      &bf54x_sdh_device,
#endif

#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
      &bf54x_spi_master0,
      &bf54x_spi_master1,
#endif

#if defined(CONFIG_KEYBOARD_BFIN) || defined(CONFIG_KEYBOARD_BFIN_MODULE)
      &bf54x_kpad_device,
#endif

#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
/*    &i2c_bfin_twi0_device, */
#if !defined(CONFIG_BF542)
      &i2c_bfin_twi1_device,
#endif
#endif

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

static int __init cm_bf548_init(void)
{
      printk(KERN_INFO "%s(): registering device resources\n", __func__);
      platform_add_devices(cm_bf548_devices, ARRAY_SIZE(cm_bf548_devices));

#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
      spi_register_board_info(bf54x_spi_board_info,
                  ARRAY_SIZE(bf54x_spi_board_info));
#endif

      return 0;
}

arch_initcall(cm_bf548_init);

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