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ezkit.c

/*
 * Copyright 2004-2009 Analog Devices Inc.
 *               2005 National ICT Australia (NICTA)
 *                    Aidan Williams <aidan@nicta.com.au>
 *
 * Licensed under the GPL-2 or later.
 */

#include <linux/device.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/irq.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <asm/dma.h>
#include <asm/bfin5xx_spi.h>
#include <asm/portmux.h>
#include <asm/dpmc.h>

/*
 * Name the Board for the /proc/cpuinfo
 */
const char bfin_board_name[] = "ADI BF561-EZKIT";

#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
#include <linux/usb/isp1760.h>
static struct resource bfin_isp1760_resources[] = {
      [0] = {
            .start  = 0x2C0F0000,
            .end    = 0x203C0000 + 0xfffff,
            .flags  = IORESOURCE_MEM,
      },
      [1] = {
            .start  = IRQ_PF10,
            .end    = IRQ_PF10,
            .flags  = IORESOURCE_IRQ,
      },
};

static struct isp1760_platform_data isp1760_priv = {
      .is_isp1761 = 0,
      .bus_width_16 = 1,
      .port1_otg = 0,
      .analog_oc = 0,
      .dack_polarity_high = 0,
      .dreq_polarity_high = 0,
};

static struct platform_device bfin_isp1760_device = {
      .name           = "isp1760",
      .id             = 0,
      .dev = {
            .platform_data = &isp1760_priv,
      },
      .num_resources  = ARRAY_SIZE(bfin_isp1760_resources),
      .resource       = bfin_isp1760_resources,
};
#endif

#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
#include <linux/usb/isp1362.h>

static struct resource isp1362_hcd_resources[] = {
      {
            .start = 0x2c060000,
            .end = 0x2c060000,
            .flags = IORESOURCE_MEM,
      }, {
            .start = 0x2c060004,
            .end = 0x2c060004,
            .flags = IORESOURCE_MEM,
      }, {
            .start = IRQ_PF8,
            .end = IRQ_PF8,
            .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
      },
};

static struct isp1362_platform_data isp1362_priv = {
      .sel15Kres = 1,
      .clknotstop = 0,
      .oc_enable = 0,
      .int_act_high = 0,
      .int_edge_triggered = 0,
      .remote_wakeup_connected = 0,
      .no_power_switching = 1,
      .power_switching_mode = 0,
};

static struct platform_device isp1362_hcd_device = {
      .name = "isp1362-hcd",
      .id = 0,
      .dev = {
            .platform_data = &isp1362_priv,
      },
      .num_resources = ARRAY_SIZE(isp1362_hcd_resources),
      .resource = isp1362_hcd_resources,
};
#endif

#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
static struct resource net2272_bfin_resources[] = {
      {
            .start = 0x2C000000,
            .end = 0x2C000000 + 0x7F,
            .flags = IORESOURCE_MEM,
      }, {
            .start = IRQ_PF10,
            .end = IRQ_PF10,
            .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
      },
};

static struct platform_device net2272_bfin_device = {
      .name = "net2272",
      .id = -1,
      .num_resources = ARRAY_SIZE(net2272_bfin_resources),
      .resource = net2272_bfin_resources,
};
#endif

/*
 *  USB-LAN EzExtender board
 *  Driver needs to know address, irq and flag pin.
 */
#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
#include <linux/smc91x.h>

static struct smc91x_platdata smc91x_info = {
      .flags = SMC91X_USE_32BIT | SMC91X_NOWAIT,
      .leda = RPC_LED_100_10,
      .ledb = RPC_LED_TX_RX,
};

static struct resource smc91x_resources[] = {
      {
            .name = "smc91x-regs",
            .start = 0x2C010300,
            .end = 0x2C010300 + 16,
            .flags = IORESOURCE_MEM,
      }, {

            .start = IRQ_PF9,
            .end = IRQ_PF9,
            .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
      },
};

static struct platform_device smc91x_device = {
      .name = "smc91x",
      .id = 0,
      .num_resources = ARRAY_SIZE(smc91x_resources),
      .resource = smc91x_resources,
      .dev  = {
            .platform_data    = &smc91x_info,
      },
};
#endif

#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
#ifdef CONFIG_SERIAL_BFIN_UART0
static struct resource bfin_uart0_resources[] = {
      {
            .start = BFIN_UART_THR,
            .end = BFIN_UART_GCTL+2,
            .flags = IORESOURCE_MEM,
      },
      {
            .start = IRQ_UART_RX,
            .end = IRQ_UART_RX+1,
            .flags = IORESOURCE_IRQ,
      },
      {
            .start = IRQ_UART_ERROR,
            .end = IRQ_UART_ERROR,
            .flags = IORESOURCE_IRQ,
      },
      {
            .start = CH_UART_TX,
            .end = CH_UART_TX,
            .flags = IORESOURCE_DMA,
      },
      {
            .start = CH_UART_RX,
            .end = CH_UART_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
#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
#endif

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

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

static struct resource ezkit_flash_resource = {
      .start = 0x20000000,
      .end   = 0x207fffff,
      .flags = IORESOURCE_MEM,
};

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

#if defined(CONFIG_SND_BF5XX_SOC_AD183X) \
      || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
static struct bfin5xx_spi_chip ad1836_spi_chip_info = {
      .enable_dma = 0,
      .bits_per_word = 16,
};
#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

#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
/* SPI (0) */
static struct resource bfin_spi0_resource[] = {
      [0] = {
            .start = SPI0_REGBASE,
            .end   = SPI0_REGBASE + 0xFF,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = CH_SPI,
            .end   = CH_SPI,
            .flags = IORESOURCE_DMA,
      },
      [2] = {
            .start = IRQ_SPI,
            .end   = IRQ_SPI,
            .flags = IORESOURCE_IRQ,
      }
};

/* SPI controller data */
static struct bfin5xx_spi_master bfin_spi0_info = {
      .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 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 */
      },
};
#endif

static struct spi_board_info bfin_spi_board_info[] __initdata = {
#if defined(CONFIG_SND_BF5XX_SOC_AD183X) \
      || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
      {
            .modalias = "ad183x",
            .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
            .bus_num = 0,
            .chip_select = 4,
            .platform_data = "ad1836", /* only includes chip name for the moment */
            .controller_data = &ad1836_spi_chip_info,
            .mode = SPI_MODE_3,
      },
#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
};

#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_PF5, 1, "gpio-keys: BTN0"},
      {BTN_1, GPIO_PF6, 1, "gpio-keys: BTN1"},
      {BTN_2, GPIO_PF7, 1, "gpio-keys: BTN2"},
      {BTN_3, GPIO_PF8, 1, "gpio-keys: BTN3"},
};

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_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
#include <linux/i2c-gpio.h>

static struct i2c_gpio_platform_data i2c_gpio_data = {
      .sda_pin          = GPIO_PF1,
      .scl_pin          = GPIO_PF0,
      .sda_is_open_drain      = 0,
      .scl_is_open_drain      = 0,
      .udelay                 = 40,
};

static struct platform_device i2c_gpio_device = {
      .name       = "i2c-gpio",
      .id         = 0,
      .dev        = {
            .platform_data    = &i2c_gpio_data,
      },
};
#endif

static const unsigned int cclk_vlev_datasheet[] =
{
      VRPAIR(VLEV_085, 250000000),
      VRPAIR(VLEV_090, 300000000),
      VRPAIR(VLEV_095, 313000000),
      VRPAIR(VLEV_100, 350000000),
      VRPAIR(VLEV_105, 400000000),
      VRPAIR(VLEV_110, 444000000),
      VRPAIR(VLEV_115, 450000000),
      VRPAIR(VLEV_120, 475000000),
      VRPAIR(VLEV_125, 500000000),
      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,
      },
};

#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
static struct platform_device bfin_i2s = {
      .name = "bfin-i2s",
      .id = CONFIG_SND_BF5XX_SPORT_NUM,
      /* TODO: add platform data here */
};
#endif

#if defined(CONFIG_SND_BF5XX_TDM) || defined(CONFIG_SND_BF5XX_TDM_MODULE)
static struct platform_device bfin_tdm = {
      .name = "bfin-tdm",
      .id = CONFIG_SND_BF5XX_SPORT_NUM,
      /* TODO: add platform data here */
};
#endif

#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
static struct platform_device bfin_ac97 = {
      .name = "bfin-ac97",
      .id = CONFIG_SND_BF5XX_SPORT_NUM,
      /* TODO: add platform data here */
};
#endif

static struct platform_device *ezkit_devices[] __initdata = {

      &bfin_dpmc,

#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
      &smc91x_device,
#endif

#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
      &net2272_bfin_device,
#endif

#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
      &bfin_isp1760_device,
#endif

#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
      &bfin_spi0_device,
#endif

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

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

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

#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
      &i2c_gpio_device,
#endif

#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
      &isp1362_hcd_device,
#endif

#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
      &ezkit_flash_device,
#endif

#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
      &bfin_i2s,
#endif

#if defined(CONFIG_SND_BF5XX_TDM) || defined(CONFIG_SND_BF5XX_TDM_MODULE)
      &bfin_tdm,
#endif

#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
      &bfin_ac97,
#endif
};

static int __init ezkit_init(void)
{
      int ret;

      printk(KERN_INFO "%s(): registering device resources\n", __func__);

      ret = platform_add_devices(ezkit_devices, ARRAY_SIZE(ezkit_devices));
      if (ret < 0)
            return ret;

#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
      bfin_write_FIO0_DIR(bfin_read_FIO0_DIR() | (1 << 12));
      SSYNC();
#endif

#if defined(CONFIG_SND_BF5XX_SOC_AD183X) || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
      bfin_write_FIO0_DIR(bfin_read_FIO0_DIR() | (1 << 15));
      bfin_write_FIO0_FLAG_S(1 << 15);
      SSYNC();
      /*
       * This initialization lasts for approximately 4500 MCLKs.
       * MCLK = 12.288MHz
       */
      udelay(400);
#endif

      spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
      return 0;
}

arch_initcall(ezkit_init);

static struct platform_device *ezkit_early_devices[] __initdata = {
#if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
#ifdef CONFIG_SERIAL_BFIN_UART0
      &bfin_uart0_device,
#endif
#endif
};

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

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