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board-innovator.c

/*
 * linux/arch/arm/mach-omap1/board-innovator.c
 *
 * Board specific inits for OMAP-1510 and OMAP-1610 Innovator
 *
 * Copyright (C) 2001 RidgeRun, Inc.
 * Author: Greg Lonnon <glonnon@ridgerun.com>
 *
 * Copyright (C) 2002 MontaVista Software, Inc.
 *
 * Separated FPGA interrupts from innovator1510.c and cleaned up for 2.6
 * Copyright (C) 2004 Nokia Corporation by Tony Lindrgen <tony@atomide.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/input.h>
#include <linux/smc91x.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <plat/mux.h>
#include <plat/flash.h>
#include <plat/fpga.h>
#include <mach/gpio.h>
#include <plat/tc.h>
#include <plat/usb.h>
#include <plat/keypad.h>
#include <plat/common.h>
#include <plat/mmc.h>

/* At OMAP1610 Innovator the Ethernet is directly connected to CS1 */
#define INNOVATOR1610_ETHR_START    0x04000300

static const unsigned int innovator_keymap[] = {
      KEY(0, 0, KEY_F1),
      KEY(3, 0, KEY_DOWN),
      KEY(1, 1, KEY_F2),
      KEY(2, 1, KEY_RIGHT),
      KEY(0, 2, KEY_F3),
      KEY(1, 2, KEY_F4),
      KEY(2, 2, KEY_UP),
      KEY(2, 3, KEY_ENTER),
      KEY(3, 3, KEY_LEFT),
};

static struct mtd_partition innovator_partitions[] = {
      /* bootloader (U-Boot, etc) in first sector */
      {
            .name       = "bootloader",
            .offset           = 0,
            .size       = SZ_128K,
            .mask_flags = MTD_WRITEABLE, /* force read-only */
      },
      /* bootloader params in the next sector */
      {
            .name       = "params",
            .offset           = MTDPART_OFS_APPEND,
            .size       = SZ_128K,
            .mask_flags = 0,
      },
      /* kernel */
      {
            .name       = "kernel",
            .offset           = MTDPART_OFS_APPEND,
            .size       = SZ_2M,
            .mask_flags = 0
      },
      /* rest of flash1 is a file system */
      {
            .name       = "rootfs",
            .offset           = MTDPART_OFS_APPEND,
            .size       = SZ_16M - SZ_2M - 2 * SZ_128K,
            .mask_flags = 0
      },
      /* file system */
      {
            .name       = "filesystem",
            .offset           = MTDPART_OFS_APPEND,
            .size       = MTDPART_SIZ_FULL,
            .mask_flags = 0
      }
};

static struct physmap_flash_data innovator_flash_data = {
      .width            = 2,
      .set_vpp    = omap1_set_vpp,
      .parts            = innovator_partitions,
      .nr_parts   = ARRAY_SIZE(innovator_partitions),
};

static struct resource innovator_flash_resource = {
      .start            = OMAP_CS0_PHYS,
      .end        = OMAP_CS0_PHYS + SZ_32M - 1,
      .flags            = IORESOURCE_MEM,
};

static struct platform_device innovator_flash_device = {
      .name       = "physmap-flash",
      .id         = 0,
      .dev        = {
            .platform_data    = &innovator_flash_data,
      },
      .num_resources    = 1,
      .resource   = &innovator_flash_resource,
};

static struct resource innovator_kp_resources[] = {
      [0] = {
            .start      = INT_KEYBOARD,
            .end  = INT_KEYBOARD,
            .flags      = IORESOURCE_IRQ,
      },
};

static const struct matrix_keymap_data innovator_keymap_data = {
      .keymap           = innovator_keymap,
      .keymap_size      = ARRAY_SIZE(innovator_keymap),
};

static struct omap_kp_platform_data innovator_kp_data = {
      .rows       = 8,
      .cols       = 8,
      .keymap_data      = &innovator_keymap_data,
      .delay            = 4,
};

static struct platform_device innovator_kp_device = {
      .name       = "omap-keypad",
      .id         = -1,
      .dev        = {
            .platform_data = &innovator_kp_data,
      },
      .num_resources    = ARRAY_SIZE(innovator_kp_resources),
      .resource   = innovator_kp_resources,
};

static struct smc91x_platdata innovator_smc91x_info = {
      .flags      = SMC91X_USE_16BIT | SMC91X_NOWAIT,
      .leda = RPC_LED_100_10,
      .ledb = RPC_LED_TX_RX,
};

#ifdef CONFIG_ARCH_OMAP15XX

#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>


/* Only FPGA needs to be mapped here. All others are done with ioremap */
static struct map_desc innovator1510_io_desc[] __initdata = {
      {
            .virtual    = OMAP1510_FPGA_BASE,
            .pfn        = __phys_to_pfn(OMAP1510_FPGA_START),
            .length           = OMAP1510_FPGA_SIZE,
            .type       = MT_DEVICE
      }
};

static struct resource innovator1510_smc91x_resources[] = {
      [0] = {
            .start      = OMAP1510_FPGA_ETHR_START,   /* Physical */
            .end  = OMAP1510_FPGA_ETHR_START + 0xf,
            .flags      = IORESOURCE_MEM,
      },
      [1] = {
            .start      = OMAP1510_INT_ETHER,
            .end  = OMAP1510_INT_ETHER,
            .flags      = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
      },
};

static struct platform_device innovator1510_smc91x_device = {
      .name       = "smc91x",
      .id         = 0,
      .dev  = {
            .platform_data    = &innovator_smc91x_info,
      },
      .num_resources    = ARRAY_SIZE(innovator1510_smc91x_resources),
      .resource   = innovator1510_smc91x_resources,
};

static struct platform_device innovator1510_lcd_device = {
      .name       = "lcd_inn1510",
      .id         = -1,
};

static struct platform_device innovator1510_spi_device = {
      .name       = "spi_inn1510",
      .id         = -1,
};

static struct platform_device *innovator1510_devices[] __initdata = {
      &innovator_flash_device,
      &innovator1510_smc91x_device,
      &innovator_kp_device,
      &innovator1510_lcd_device,
      &innovator1510_spi_device,
};

static int innovator_get_pendown_state(void)
{
      return !(fpga_read(OMAP1510_FPGA_TOUCHSCREEN) & (1 << 5));
}

static const struct ads7846_platform_data innovator1510_ts_info = {
      .model                  = 7846,
      .vref_delay_usecs = 100,      /* internal, no capacitor */
      .x_plate_ohms           = 419,
      .y_plate_ohms           = 486,
      .get_pendown_state      = innovator_get_pendown_state,
};

static struct spi_board_info __initdata innovator1510_boardinfo[] = { {
      /* FPGA (bus "10") CS0 has an ads7846e */
      .modalias         = "ads7846",
      .platform_data          = &innovator1510_ts_info,
      .irq              = OMAP1510_INT_FPGA_TS,
      .max_speed_hz           = 120000 /* max sample rate at 3V */
                              * 26 /* command + data + overhead */,
      .bus_num          = 10,
      .chip_select            = 0,
} };

#endif /* CONFIG_ARCH_OMAP15XX */

#ifdef CONFIG_ARCH_OMAP16XX

static struct resource innovator1610_smc91x_resources[] = {
      [0] = {
            .start      = INNOVATOR1610_ETHR_START,         /* Physical */
            .end  = INNOVATOR1610_ETHR_START + 0xf,
            .flags      = IORESOURCE_MEM,
      },
      [1] = {
            .start      = OMAP_GPIO_IRQ(0),
            .end  = OMAP_GPIO_IRQ(0),
            .flags      = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
      },
};

static struct platform_device innovator1610_smc91x_device = {
      .name       = "smc91x",
      .id         = 0,
      .dev  = {
            .platform_data    = &innovator_smc91x_info,
      },
      .num_resources    = ARRAY_SIZE(innovator1610_smc91x_resources),
      .resource   = innovator1610_smc91x_resources,
};

static struct platform_device innovator1610_lcd_device = {
      .name       = "inn1610_lcd",
      .id         = -1,
};

static struct platform_device *innovator1610_devices[] __initdata = {
      &innovator_flash_device,
      &innovator1610_smc91x_device,
      &innovator_kp_device,
      &innovator1610_lcd_device,
};

#endif /* CONFIG_ARCH_OMAP16XX */

static void __init innovator_init_smc91x(void)
{
      if (cpu_is_omap1510()) {
            fpga_write(fpga_read(OMAP1510_FPGA_RST) & ~1,
                     OMAP1510_FPGA_RST);
            udelay(750);
      } else {
            if (gpio_request(0, "SMC91x irq") < 0) {
                  printk("Error requesting gpio 0 for smc91x irq\n");
                  return;
            }
      }
}

static void __init innovator_init_irq(void)
{
      omap1_init_common_hw();
      omap_init_irq();
}

#ifdef CONFIG_ARCH_OMAP15XX
static struct omap_usb_config innovator1510_usb_config __initdata = {
      /* for bundled non-standard host and peripheral cables */
      .hmc_mode   = 4,

      .register_host    = 1,
      .pins[1]    = 6,
      .pins[2]    = 6,        /* Conflicts with UART2 */

      .register_dev     = 1,
      .pins[0]    = 2,
};

static struct omap_lcd_config innovator1510_lcd_config __initdata = {
      .ctrl_name  = "internal",
};
#endif

#ifdef CONFIG_ARCH_OMAP16XX
static struct omap_usb_config h2_usb_config __initdata = {
      /* usb1 has a Mini-AB port and external isp1301 transceiver */
      .otg        = 2,

#ifdef      CONFIG_USB_GADGET_OMAP
      .hmc_mode   = 19, /* 0:host(off) 1:dev|otg 2:disabled */
      /* .hmc_mode      = 21,*/     /* 0:host(off) 1:dev(loopback) 2:host(loopback) */
#elif defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
      /* NONSTANDARD CABLE NEEDED (B-to-Mini-B) */
      .hmc_mode   = 20, /* 1:dev|otg(off) 1:host 2:disabled */
#endif

      .pins[1]    = 3,
};

static struct omap_lcd_config innovator1610_lcd_config __initdata = {
      .ctrl_name  = "internal",
};
#endif

#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)

static int mmc_set_power(struct device *dev, int slot, int power_on,
                        int vdd)
{
      if (power_on)
            fpga_write(fpga_read(OMAP1510_FPGA_POWER) | (1 << 3),
                        OMAP1510_FPGA_POWER);
      else
            fpga_write(fpga_read(OMAP1510_FPGA_POWER) & ~(1 << 3),
                        OMAP1510_FPGA_POWER);

      return 0;
}

/*
 * Innovator could use the following functions tested:
 * - mmc_get_wp that uses OMAP_MPUIO(3)
 * - mmc_get_cover_state that uses FPGA F4 UIO43
 */
static struct omap_mmc_platform_data mmc1_data = {
      .nr_slots                       = 1,
      .slots[0]       = {
            .set_power        = mmc_set_power,
            .wires                  = 4,
            .name                   = "mmcblk",
      },
};

static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];

void __init innovator_mmc_init(void)
{
      mmc_data[0] = &mmc1_data;
      omap1_init_mmc(mmc_data, OMAP15XX_NR_MMC);
}

#else
static inline void innovator_mmc_init(void)
{
}
#endif

static struct omap_board_config_kernel innovator_config[] = {
      { OMAP_TAG_LCD,         NULL },
};

static void __init innovator_init(void)
{
      if (cpu_is_omap1510())
            omap1510_fpga_init_irq();
      innovator_init_smc91x();

#ifdef CONFIG_ARCH_OMAP15XX
      if (cpu_is_omap1510()) {
            unsigned char reg;

            /* mux pins for uarts */
            omap_cfg_reg(UART1_TX);
            omap_cfg_reg(UART1_RTS);
            omap_cfg_reg(UART2_TX);
            omap_cfg_reg(UART2_RTS);
            omap_cfg_reg(UART3_TX);
            omap_cfg_reg(UART3_RX);

            reg = fpga_read(OMAP1510_FPGA_POWER);
            reg |= OMAP1510_FPGA_PCR_COM1_EN;
            fpga_write(reg, OMAP1510_FPGA_POWER);
            udelay(10);

            reg = fpga_read(OMAP1510_FPGA_POWER);
            reg |= OMAP1510_FPGA_PCR_COM2_EN;
            fpga_write(reg, OMAP1510_FPGA_POWER);
            udelay(10);

            platform_add_devices(innovator1510_devices, ARRAY_SIZE(innovator1510_devices));
            spi_register_board_info(innovator1510_boardinfo,
                        ARRAY_SIZE(innovator1510_boardinfo));
      }
#endif
#ifdef CONFIG_ARCH_OMAP16XX
      if (!cpu_is_omap1510()) {
            platform_add_devices(innovator1610_devices, ARRAY_SIZE(innovator1610_devices));
      }
#endif

#ifdef CONFIG_ARCH_OMAP15XX
      if (cpu_is_omap1510()) {
            omap1_usb_init(&innovator1510_usb_config);
            innovator_config[1].data = &innovator1510_lcd_config;
      }
#endif
#ifdef CONFIG_ARCH_OMAP16XX
      if (cpu_is_omap1610()) {
            omap1_usb_init(&h2_usb_config);
            innovator_config[1].data = &innovator1610_lcd_config;
      }
#endif
      omap_board_config = innovator_config;
      omap_board_config_size = ARRAY_SIZE(innovator_config);
      omap_serial_init();
      omap_register_i2c_bus(1, 100, NULL, 0);
      innovator_mmc_init();
}

static void __init innovator_map_io(void)
{
      omap1_map_common_io();

#ifdef CONFIG_ARCH_OMAP15XX
      if (cpu_is_omap1510()) {
            iotable_init(innovator1510_io_desc, ARRAY_SIZE(innovator1510_io_desc));
            udelay(10); /* Delay needed for FPGA */

            /* Dump the Innovator FPGA rev early - useful info for support. */
            printk("Innovator FPGA Rev %d.%d Board Rev %d\n",
                   fpga_read(OMAP1510_FPGA_REV_HIGH),
                   fpga_read(OMAP1510_FPGA_REV_LOW),
                   fpga_read(OMAP1510_FPGA_BOARD_REV));
      }
#endif
}

MACHINE_START(OMAP_INNOVATOR, "TI-Innovator")
      /* Maintainer: MontaVista Software, Inc. */
      .boot_params      = 0x10000100,
      .map_io           = innovator_map_io,
      .reserve    = omap_reserve,
      .init_irq   = innovator_init_irq,
      .init_machine     = innovator_init,
      .timer            = &omap_timer,
MACHINE_END

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