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board-h3.c

/*
 * linux/arch/arm/mach-omap1/board-h3.c
 *
 * This file contains OMAP1710 H3 specific code.
 *
 * Copyright (C) 2004 Texas Instruments, Inc.
 * Copyright (C) 2002 MontaVista Software, Inc.
 * Copyright (C) 2001 RidgeRun, Inc.
 * Author: RidgeRun, Inc.
 *         Greg Lonnon (glonnon@ridgerun.com) or info@ridgerun.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/types.h>
#include <linux/init.h>
#include <linux/major.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/errno.h>
#include <linux/workqueue.h>
#include <linux/i2c.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/input.h>
#include <linux/spi/spi.h>
#include <linux/i2c/tps65010.h>

#include <asm/setup.h>
#include <asm/page.h>
#include <mach/hardware.h>
#include <asm/gpio.h>

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

#include <mach/irqs.h>
#include <mach/mux.h>
#include <mach/tc.h>
#include <mach/nand.h>
#include <mach/usb.h>
#include <mach/keypad.h>
#include <mach/dma.h>
#include <mach/common.h>

#include "board-h3.h"

/* In OMAP1710 H3 the Ethernet is directly connected to CS1 */
#define OMAP1710_ETHR_START         0x04000300

#define H3_TS_GPIO      48

static int h3_keymap[] = {
      KEY(0, 0, KEY_LEFT),
      KEY(0, 1, KEY_RIGHT),
      KEY(0, 2, KEY_3),
      KEY(0, 3, KEY_F10),
      KEY(0, 4, KEY_F5),
      KEY(0, 5, KEY_9),
      KEY(1, 0, KEY_DOWN),
      KEY(1, 1, KEY_UP),
      KEY(1, 2, KEY_2),
      KEY(1, 3, KEY_F9),
      KEY(1, 4, KEY_F7),
      KEY(1, 5, KEY_0),
      KEY(2, 0, KEY_ENTER),
      KEY(2, 1, KEY_6),
      KEY(2, 2, KEY_1),
      KEY(2, 3, KEY_F2),
      KEY(2, 4, KEY_F6),
      KEY(2, 5, KEY_HOME),
      KEY(3, 0, KEY_8),
      KEY(3, 1, KEY_5),
      KEY(3, 2, KEY_F12),
      KEY(3, 3, KEY_F3),
      KEY(3, 4, KEY_F8),
      KEY(3, 5, KEY_END),
      KEY(4, 0, KEY_7),
      KEY(4, 1, KEY_4),
      KEY(4, 2, KEY_F11),
      KEY(4, 3, KEY_F1),
      KEY(4, 4, KEY_F4),
      KEY(4, 5, KEY_ESC),
      KEY(5, 0, KEY_F13),
      KEY(5, 1, KEY_F14),
      KEY(5, 2, KEY_F15),
      KEY(5, 3, KEY_F16),
      KEY(5, 4, KEY_SLEEP),
      0
};


static struct mtd_partition nor_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
      },
      /* file system */
      {
            .name       = "filesystem",
            .offset           = MTDPART_OFS_APPEND,
            .size       = MTDPART_SIZ_FULL,
            .mask_flags = 0
      }
};

static struct flash_platform_data nor_data = {
      .map_name   = "cfi_probe",
      .width            = 2,
      .parts            = nor_partitions,
      .nr_parts   = ARRAY_SIZE(nor_partitions),
};

static struct resource nor_resource = {
      /* This is on CS3, wherever it's mapped */
      .flags            = IORESOURCE_MEM,
};

static struct platform_device nor_device = {
      .name       = "omapflash",
      .id         = 0,
      .dev        = {
            .platform_data    = &nor_data,
      },
      .num_resources    = 1,
      .resource   = &nor_resource,
};

static struct mtd_partition nand_partitions[] = {
#if 0
      /* REVISIT: enable these partitions if you make NAND BOOT work */
      {
            .name       = "xloader",
            .offset           = 0,
            .size       = 64 * 1024,
            .mask_flags = MTD_WRITEABLE,  /* force read-only */
      },
      {
            .name       = "bootloader",
            .offset           = MTDPART_OFS_APPEND,
            .size       = 256 * 1024,
            .mask_flags = MTD_WRITEABLE,  /* force read-only */
      },
      {
            .name       = "params",
            .offset           = MTDPART_OFS_APPEND,
            .size       = 192 * 1024,
      },
      {
            .name       = "kernel",
            .offset           = MTDPART_OFS_APPEND,
            .size       = 2 * SZ_1M,
      },
#endif
      {
            .name       = "filesystem",
            .size       = MTDPART_SIZ_FULL,
            .offset           = MTDPART_OFS_APPEND,
      },
};

/* dip switches control NAND chip access:  8 bit, 16 bit, or neither */
static struct omap_nand_platform_data nand_data = {
      .options    = NAND_SAMSUNG_LP_OPTIONS,
      .parts            = nand_partitions,
      .nr_parts   = ARRAY_SIZE(nand_partitions),
};

static struct resource nand_resource = {
      .flags            = IORESOURCE_MEM,
};

static struct platform_device nand_device = {
      .name       = "omapnand",
      .id         = 0,
      .dev        = {
            .platform_data    = &nand_data,
      },
      .num_resources    = 1,
      .resource   = &nand_resource,
};

static struct resource smc91x_resources[] = {
      [0] = {
            .start      = OMAP1710_ETHR_START,        /* Physical */
            .end  = OMAP1710_ETHR_START + 0xf,
            .flags      = IORESOURCE_MEM,
      },
      [1] = {
            .start      = OMAP_GPIO_IRQ(40),
            .end  = OMAP_GPIO_IRQ(40),
            .flags      = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
      },
};

static struct platform_device smc91x_device = {
      .name       = "smc91x",
      .id         = 0,
      .num_resources    = ARRAY_SIZE(smc91x_resources),
      .resource   = smc91x_resources,
};

#define GPTIMER_BASE          0xFFFB1400
#define GPTIMER_REGS(x) (0xFFFB1400 + (x * 0x800))
#define GPTIMER_REGS_SIZE     0x46

static struct resource intlat_resources[] = {
      [0] = {
            .start  = GPTIMER_REGS(0),          /* Physical */
            .end    = GPTIMER_REGS(0) + GPTIMER_REGS_SIZE,
            .flags  = IORESOURCE_MEM,
      },
      [1] = {
            .start  = INT_1610_GPTIMER1,
            .end    = INT_1610_GPTIMER1,
            .flags  = IORESOURCE_IRQ,
      },
};

static struct platform_device intlat_device = {
      .name    = "omap_intlat",
      .id        = 0,
      .num_resources  = ARRAY_SIZE(intlat_resources),
      .resource       = intlat_resources,
};

static struct resource h3_kp_resources[] = {
      [0] = {
            .start      = INT_KEYBOARD,
            .end  = INT_KEYBOARD,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct omap_kp_platform_data h3_kp_data = {
      .rows       = 8,
      .cols       = 8,
      .keymap           = h3_keymap,
      .keymapsize = ARRAY_SIZE(h3_keymap),
      .rep        = 1,
      .delay            = 9,
      .dbounce    = 1,
};

static struct platform_device h3_kp_device = {
      .name       = "omap-keypad",
      .id         = -1,
      .dev        = {
            .platform_data = &h3_kp_data,
      },
      .num_resources    = ARRAY_SIZE(h3_kp_resources),
      .resource   = h3_kp_resources,
};

static struct platform_device h3_lcd_device = {
      .name       = "lcd_h3",
      .id         = -1,
};

static struct spi_board_info h3_spi_board_info[] __initdata = {
      [0] = {
            .modalias   = "tsc2101",
            .bus_num    = 2,
            .chip_select      = 0,
            .irq        = OMAP_GPIO_IRQ(H3_TS_GPIO),
            .max_speed_hz     = 16000000,
            /* .platform_data = &tsc_platform_data, */
      },
};

static struct platform_device *devices[] __initdata = {
      &nor_device,
      &nand_device,
        &smc91x_device,
      &intlat_device,
      &h3_kp_device,
      &h3_lcd_device,
};

static struct omap_usb_config h3_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 */
#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 h3_lcd_config __initdata = {
      .ctrl_name  = "internal",
};

static struct omap_board_config_kernel h3_config[] __initdata = {
      { OMAP_TAG_LCD,         &h3_lcd_config },
};

static struct i2c_board_info __initdata h3_i2c_board_info[] = {
       {
            I2C_BOARD_INFO("tps65013", 0x48),
               /* .irq         = OMAP_GPIO_IRQ(??), */
       },
      {
            I2C_BOARD_INFO("isp1301_omap", 0x2d),
            .irq        = OMAP_GPIO_IRQ(14),
      },
};

#define H3_NAND_RB_GPIO_PIN   10

static int nand_dev_ready(struct omap_nand_platform_data *data)
{
      return gpio_get_value(H3_NAND_RB_GPIO_PIN);
}

static void __init h3_init(void)
{
      /* Here we assume the NOR boot config:  NOR on CS3 (possibly swapped
       * to address 0 by a dip switch), NAND on CS2B.  The NAND driver will
       * notice whether a NAND chip is enabled at probe time.
       *
       * H3 support NAND-boot, with a dip switch to put NOR on CS2B and NAND
       * (which on H2 may be 16bit) on CS3.  Try detecting that in code here,
       * to avoid probing every possible flash configuration...
       */
      nor_resource.end = nor_resource.start = omap_cs3_phys();
      nor_resource.end += SZ_32M - 1;

      nand_resource.end = nand_resource.start = OMAP_CS2B_PHYS;
      nand_resource.end += SZ_4K - 1;
      if (gpio_request(H3_NAND_RB_GPIO_PIN, "NAND ready") < 0)
            BUG();
      nand_data.dev_ready = nand_dev_ready;

      /* GPIO10 Func_MUX_CTRL reg bit 29:27, Configure V2 to mode1 as GPIO */
      /* GPIO10 pullup/down register, Enable pullup on GPIO10 */
      omap_cfg_reg(V2_1710_GPIO10);

      platform_add_devices(devices, ARRAY_SIZE(devices));
      spi_register_board_info(h3_spi_board_info,
                        ARRAY_SIZE(h3_spi_board_info));
      omap_board_config = h3_config;
      omap_board_config_size = ARRAY_SIZE(h3_config);
      omap_serial_init();
      omap_register_i2c_bus(1, 100, h3_i2c_board_info,
                        ARRAY_SIZE(h3_i2c_board_info));
      omap_usb_init(&h3_usb_config);
      h3_mmc_init();
}

static void __init h3_init_smc91x(void)
{
      omap_cfg_reg(W15_1710_GPIO40);
      if (gpio_request(40, "SMC91x irq") < 0) {
            printk("Error requesting gpio 40 for smc91x irq\n");
            return;
      }
}

static void __init h3_init_irq(void)
{
      omap1_init_common_hw();
      omap_init_irq();
      omap_gpio_init();
      h3_init_smc91x();
}

static void __init h3_map_io(void)
{
      omap1_map_common_io();
}

MACHINE_START(OMAP_H3, "TI OMAP1710 H3 board")
      /* Maintainer: Texas Instruments, Inc. */
      .phys_io    = 0xfff00000,
      .io_pg_offst      = ((0xfef00000) >> 18) & 0xfffc,
      .boot_params      = 0x10000100,
      .map_io           = h3_map_io,
      .init_irq   = h3_init_irq,
      .init_machine     = h3_init,
      .timer            = &omap_timer,
MACHINE_END

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