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board-h2.c

/*
 * linux/arch/arm/mach-omap1/board-h2.c
 *
 * Board specific inits for OMAP-1610 H2
 *
 * 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>
 *
 * H2 specific changes and cleanup
 * Copyright (C) 2004 Nokia Corporation by Imre Deak <imre.deak@nokia.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/platform_device.h>
#include <linux/delay.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 <asm/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 <asm/arch/tps65010.h>
#include <asm/arch/mux.h>
#include <asm/arch/tc.h>
#include <asm/arch/irda.h>
#include <asm/arch/usb.h>
#include <asm/arch/keypad.h>
#include <asm/arch/common.h>
#include <asm/arch/mcbsp.h>
#include <asm/arch/omap-alsa.h>

extern int omap_gpio_init(void);

static int h2_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 h2_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 h2_nor_data = {
      .map_name   = "cfi_probe",
      .width            = 2,
      .parts            = h2_nor_partitions,
      .nr_parts   = ARRAY_SIZE(h2_nor_partitions),
};

static struct resource h2_nor_resource = {
      /* This is on CS3, wherever it's mapped */
      .flags            = IORESOURCE_MEM,
};

static struct platform_device h2_nor_device = {
      .name       = "omapflash",
      .id         = 0,
      .dev        = {
            .platform_data    = &h2_nor_data,
      },
      .num_resources    = 1,
      .resource   = &h2_nor_resource,
};

#if 0 /* REVISIT: Enable when nand_platform_data is applied */

static struct mtd_partition h2_nand_partitions[] = {
#if 0
      /* REVISIT:  enable these partitions if you make NAND BOOT
       * work on your H2 (rev C or newer); published versions of
       * x-load only support P2 and H3.
       */
      {
            .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 nand_platform_data h2_nand_data = {
      .options    = NAND_SAMSUNG_LP_OPTIONS,
      .parts            = h2_nand_partitions,
      .nr_parts   = ARRAY_SIZE(h2_nand_partitions),
};

static struct resource h2_nand_resource = {
      .flags            = IORESOURCE_MEM,
};

static struct platform_device h2_nand_device = {
      .name       = "omapnand",
      .id         = 0,
      .dev        = {
            .platform_data    = &h2_nand_data,
      },
      .num_resources    = 1,
      .resource   = &h2_nand_resource,
};
#endif

static struct resource h2_smc91x_resources[] = {
      [0] = {
            .start      = OMAP1610_ETHR_START,        /* Physical */
            .end  = OMAP1610_ETHR_START + 0xf,
            .flags      = IORESOURCE_MEM,
      },
      [1] = {
            .start      = OMAP_GPIO_IRQ(0),
            .end  = OMAP_GPIO_IRQ(0),
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device h2_smc91x_device = {
      .name       = "smc91x",
      .id         = 0,
      .num_resources    = ARRAY_SIZE(h2_smc91x_resources),
      .resource   = h2_smc91x_resources,
};

static struct resource h2_kp_resources[] = {
      [0] = {
            .start      = INT_KEYBOARD,
            .end  = INT_KEYBOARD,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct omap_kp_platform_data h2_kp_data = {
      .rows       = 8,
      .cols       = 8,
      .keymap           = h2_keymap,
      .keymapsize = ARRAY_SIZE(h2_keymap),
      .rep        = 1,
      .delay            = 9,
      .dbounce    = 1,
};

static struct platform_device h2_kp_device = {
      .name       = "omap-keypad",
      .id         = -1,
      .dev        = {
            .platform_data = &h2_kp_data,
      },
      .num_resources    = ARRAY_SIZE(h2_kp_resources),
      .resource   = h2_kp_resources,
};

#define H2_IRDA_FIRSEL_GPIO_PIN     17

#if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
static int h2_transceiver_mode(struct device *dev, int state)
{
      if (state & IR_SIRMODE)
            omap_set_gpio_dataout(H2_IRDA_FIRSEL_GPIO_PIN, 0);
      else    /* MIR/FIR */
            omap_set_gpio_dataout(H2_IRDA_FIRSEL_GPIO_PIN, 1);

      return 0;
}
#endif

static struct omap_irda_config h2_irda_data = {
      .transceiver_cap  = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
      .rx_channel       = OMAP_DMA_UART3_RX,
      .tx_channel       = OMAP_DMA_UART3_TX,
      .dest_start       = UART3_THR,
      .src_start        = UART3_RHR,
      .tx_trigger       = 0,
      .rx_trigger       = 0,
};

static struct resource h2_irda_resources[] = {
      [0] = {
            .start      = INT_UART3,
            .end  = INT_UART3,
            .flags      = IORESOURCE_IRQ,
      },
};

static u64 irda_dmamask = 0xffffffff;

static struct platform_device h2_irda_device = {
      .name       = "omapirda",
      .id         = 0,
      .dev        = {
            .platform_data    = &h2_irda_data,
            .dma_mask   = &irda_dmamask,
      },
      .num_resources    = ARRAY_SIZE(h2_irda_resources),
      .resource   = h2_irda_resources,
};

static struct platform_device h2_lcd_device = {
      .name       = "lcd_h2",
      .id         = -1,
};

static struct omap_mcbsp_reg_cfg mcbsp_regs = {
      .spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
      .spcr1 = RINTM(3) | RRST,
      .rcr2  = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
                RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(1),
      .rcr1  = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
      .xcr2  = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
                XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(1) | XFIG,
      .xcr1  = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
      .srgr1 = FWID(15),
      .srgr2 = GSYNC | CLKSP | FSGM | FPER(31),

      .pcr0  = CLKXM | CLKRM | FSXP | FSRP | CLKXP | CLKRP,
      //.pcr0 = CLKXP | CLKRP,        /* mcbsp: slave */
};

static struct omap_alsa_codec_config alsa_config = {
      .name                   = "H2 TSC2101",
      .mcbsp_regs_alsa        = &mcbsp_regs,
      .codec_configure_dev    = NULL, // tsc2101_configure,
      .codec_set_samplerate   = NULL, // tsc2101_set_samplerate,
      .codec_clock_setup      = NULL, // tsc2101_clock_setup,
      .codec_clock_on         = NULL, // tsc2101_clock_on,
      .codec_clock_off        = NULL, // tsc2101_clock_off,
      .get_default_samplerate = NULL, // tsc2101_get_default_samplerate,
};

static struct platform_device h2_mcbsp1_device = {
      .name = "omap_alsa_mcbsp",
      .id   = 1,
      .dev = {
            .platform_data    = &alsa_config,
      },
};

static struct platform_device *h2_devices[] __initdata = {
      &h2_nor_device,
      //&h2_nand_device,
      &h2_smc91x_device,
      &h2_irda_device,
      &h2_kp_device,
      &h2_lcd_device,
      &h2_mcbsp1_device,
};

#ifdef CONFIG_I2C_BOARDINFO
static struct i2c_board_info __initdata h2_i2c_board_info[] = {
      {
            I2C_BOARD_INFO("tps65010", 0x48),
            .type       = "tps65010",
            .irq        = OMAP_GPIO_IRQ(58),
      },
      /* TODO when driver support is ready:
       *  - isp1301 OTG transceiver
       *  - optional ov9640 camera sensor at 0x30
       *  - pcf9754 for aGPS control
       *  - ... etc
       */
};
#endif

static void __init h2_init_smc91x(void)
{
      if ((omap_request_gpio(0)) < 0) {
            printk("Error requesting gpio 0 for smc91x irq\n");
            return;
      }
}

static void __init h2_init_irq(void)
{
      omap1_init_common_hw();
      omap_init_irq();
      omap_gpio_init();
      h2_init_smc91x();
}

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)
      /* needs OTG cable, or NONSTANDARD (B-to-MiniB) */
      .hmc_mode   = 20, // 1:dev|otg(off) 1:host 2:disabled
#endif

      .pins[1]    = 3,
};

static struct omap_mmc_config h2_mmc_config __initdata = {
      .mmc [0] = {
            .enabled    = 1,
            .wire4            = 1,
            .wp_pin           = OMAP_MPUIO(3),
            .power_pin  = -1, /* tps65010 gpio3 */
            .switch_pin = OMAP_MPUIO(1),
      },
};

static struct omap_uart_config h2_uart_config __initdata = {
      .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
};

static struct omap_lcd_config h2_lcd_config __initdata = {
      .ctrl_name  = "internal",
};

static struct omap_board_config_kernel h2_config[] __initdata = {
      { OMAP_TAG_USB,           &h2_usb_config },
      { OMAP_TAG_MMC,           &h2_mmc_config },
      { OMAP_TAG_UART,  &h2_uart_config },
      { OMAP_TAG_LCD,         &h2_lcd_config },
};

#define H2_NAND_RB_GPIO_PIN   62

static int h2_nand_dev_ready(struct nand_platform_data *data)
{
      return omap_get_gpio_datain(H2_NAND_RB_GPIO_PIN);
}

static void __init h2_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.
       *
       * FIXME revC boards (and 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...
       */
      h2_nor_resource.end = h2_nor_resource.start = omap_cs3_phys();
      h2_nor_resource.end += SZ_32M - 1;

#if 0 /* REVISIT: Enable when nand_platform_data is applied */
      h2_nand_resource.end = h2_nand_resource.start = OMAP_CS2B_PHYS;
      h2_nand_resource.end += SZ_4K - 1;
      if (!(omap_request_gpio(H2_NAND_RB_GPIO_PIN)))
            h2_nand_data.dev_ready = h2_nand_dev_ready;
#endif

      omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
      omap_cfg_reg(M8_1610_FLASH_CS2B_WE);

      /* MMC:  card detect and WP */
      // omap_cfg_reg(U19_ARMIO1);        /* CD */
      omap_cfg_reg(BALLOUT_V8_ARMIO3);    /* WP */

      /* Irda */
#if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
      omap_writel(omap_readl(FUNC_MUX_CTRL_A) | 7, FUNC_MUX_CTRL_A);
      if (!(omap_request_gpio(H2_IRDA_FIRSEL_GPIO_PIN))) {
            omap_set_gpio_direction(H2_IRDA_FIRSEL_GPIO_PIN, 0);
            h2_irda_data.transceiver_mode = h2_transceiver_mode;
      }
#endif

      platform_add_devices(h2_devices, ARRAY_SIZE(h2_devices));
      omap_board_config = h2_config;
      omap_board_config_size = ARRAY_SIZE(h2_config);
      omap_serial_init();

      /* irq for tps65010 chip */
      omap_cfg_reg(W4_GPIO58);
      if (gpio_request(58, "tps65010") == 0)
            gpio_direction_input(58);

#ifdef CONFIG_I2C_BOARDINFO
      i2c_register_board_info(1, h2_i2c_board_info,
                  ARRAY_SIZE(h2_i2c_board_info));
#endif
}

static void __init h2_map_io(void)
{
      omap1_map_common_io();
}

#ifdef CONFIG_TPS65010
static int __init h2_tps_init(void)
{
      if (!machine_is_omap_h2())
            return 0;

      /* gpio3 for SD, gpio4 for VDD_DSP */
      /* FIXME send power to DSP iff it's configured */

      /* Enable LOW_PWR */
      tps65010_set_low_pwr(ON);
      return 0;
}
fs_initcall(h2_tps_init);
#endif

MACHINE_START(OMAP_H2, "TI-H2")
      /* Maintainer: Imre Deak <imre.deak@nokia.com> */
      .phys_io    = 0xfff00000,
      .io_pg_offst      = ((0xfef00000) >> 18) & 0xfffc,
      .boot_params      = 0x10000100,
      .map_io           = h2_map_io,
      .init_irq   = h2_init_irq,
      .init_machine     = h2_init,
      .timer            = &omap_timer,
MACHINE_END

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