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Sourcecode: linux-2.6 version File versions  Download package

board-fsample.c

/*
 * linux/arch/arm/mach-omap1/board-fsample.c
 *
 * Modified from board-perseus2.c
 *
 * Original OMAP730 support by Jean Pihet <j-pihet@ti.com>
 * Updated for 2.6 by Kevin Hilman <kjh@hilman.org>
 *
 * 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/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/input.h>

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

#include <asm/arch/tc.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mux.h>
#include <asm/arch/fpga.h>
#include <asm/arch/nand.h>
#include <asm/arch/keypad.h>
#include <asm/arch/common.h>
#include <asm/arch/board.h>
#include <asm/arch/board-fsample.h>

static int fsample_keymap[] = {
      KEY(0,0,KEY_UP),
      KEY(0,1,KEY_RIGHT),
      KEY(0,2,KEY_LEFT),
      KEY(0,3,KEY_DOWN),
      KEY(0,4,KEY_ENTER),
      KEY(1,0,KEY_F10),
      KEY(1,1,KEY_SEND),
      KEY(1,2,KEY_END),
      KEY(1,3,KEY_VOLUMEDOWN),
      KEY(1,4,KEY_VOLUMEUP),
      KEY(1,5,KEY_RECORD),
      KEY(2,0,KEY_F9),
      KEY(2,1,KEY_3),
      KEY(2,2,KEY_6),
      KEY(2,3,KEY_9),
      KEY(2,4,KEY_KPDOT),
      KEY(3,0,KEY_BACK),
      KEY(3,1,KEY_2),
      KEY(3,2,KEY_5),
      KEY(3,3,KEY_8),
      KEY(3,4,KEY_0),
      KEY(3,5,KEY_KPSLASH),
      KEY(4,0,KEY_HOME),
      KEY(4,1,KEY_1),
      KEY(4,2,KEY_4),
      KEY(4,3,KEY_7),
      KEY(4,4,KEY_KPASTERISK),
      KEY(4,5,KEY_POWER),
      0
};

static struct resource smc91x_resources[] = {
      [0] = {
            .start      = H2P2_DBG_FPGA_ETHR_START,   /* Physical */
            .end  = H2P2_DBG_FPGA_ETHR_START + 0xf,
            .flags      = IORESOURCE_MEM,
      },
      [1] = {
            .start      = INT_730_MPU_EXT_NIRQ,
            .end  = 0,
            .flags      = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
      },
};

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
      },
      /* rest of flash is a file system */
      {
            .name       = "rootfs",
            .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 = {
      .start            = OMAP_CS0_PHYS,
      .end        = OMAP_CS0_PHYS + SZ_32M - 1,
      .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 omap_nand_platform_data nand_data = {
      .options    = NAND_SAMSUNG_LP_OPTIONS,
};

static struct resource nand_resource = {
      .start            = OMAP_CS3_PHYS,
      .end        = OMAP_CS3_PHYS + SZ_4K - 1,
      .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 platform_device smc91x_device = {
      .name       = "smc91x",
      .id         = 0,
      .num_resources    = ARRAY_SIZE(smc91x_resources),
      .resource   = smc91x_resources,
};

static struct resource kp_resources[] = {
      [0] = {
            .start      = INT_730_MPUIO_KEYPAD,
            .end  = INT_730_MPUIO_KEYPAD,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct omap_kp_platform_data kp_data = {
      .rows       = 8,
      .cols       = 8,
      .keymap           = fsample_keymap,
      .keymapsize = ARRAY_SIZE(fsample_keymap),
      .delay            = 4,
};

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

static struct platform_device lcd_device = {
      .name       = "lcd_p2",
      .id         = -1,
};

static struct platform_device *devices[] __initdata = {
      &nor_device,
      &nand_device,
      &smc91x_device,
      &kp_device,
      &lcd_device,
};

#define P2_NAND_RB_GPIO_PIN   62

static int nand_dev_ready(struct omap_nand_platform_data *data)
{
      return omap_get_gpio_datain(P2_NAND_RB_GPIO_PIN);
}

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

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

static struct omap_board_config_kernel fsample_config[] = {
      { OMAP_TAG_UART,  &fsample_uart_config },
      { OMAP_TAG_LCD,         &fsample_lcd_config },
};

static void __init omap_fsample_init(void)
{
      if (!(omap_request_gpio(P2_NAND_RB_GPIO_PIN)))
            nand_data.dev_ready = nand_dev_ready;

      omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
      omap_cfg_reg(M8_1610_FLASH_CS2B_WE);

      platform_add_devices(devices, ARRAY_SIZE(devices));

      omap_board_config = fsample_config;
      omap_board_config_size = ARRAY_SIZE(fsample_config);
      omap_serial_init();
      omap_register_i2c_bus(1, 100, NULL, 0);
}

static void __init fsample_init_smc91x(void)
{
      fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
      mdelay(50);
      fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
               H2P2_DBG_FPGA_LAN_RESET);
      mdelay(50);
}

static void __init omap_fsample_init_irq(void)
{
      omap1_init_common_hw();
      omap_init_irq();
      omap_gpio_init();
      fsample_init_smc91x();
}

/* Only FPGA needs to be mapped here. All others are done with ioremap */
static struct map_desc omap_fsample_io_desc[] __initdata = {
      {
            .virtual    = H2P2_DBG_FPGA_BASE,
            .pfn        = __phys_to_pfn(H2P2_DBG_FPGA_START),
            .length           = H2P2_DBG_FPGA_SIZE,
            .type       = MT_DEVICE
      },
      {
            .virtual    = FSAMPLE_CPLD_BASE,
            .pfn        = __phys_to_pfn(FSAMPLE_CPLD_START),
            .length           = FSAMPLE_CPLD_SIZE,
            .type       = MT_DEVICE
      }
};

static void __init omap_fsample_map_io(void)
{
      omap1_map_common_io();
      iotable_init(omap_fsample_io_desc,
                 ARRAY_SIZE(omap_fsample_io_desc));

      /* Early, board-dependent init */

      /*
       * Hold GSM Reset until needed
       */
      omap_writew(omap_readw(OMAP730_DSP_M_CTL) & ~1, OMAP730_DSP_M_CTL);

      /*
       * UARTs -> done automagically by 8250 driver
       */

      /*
       * CSx timings, GPIO Mux ... setup
       */

      /* Flash: CS0 timings setup */
      omap_writel(0x0000fff3, OMAP730_FLASH_CFG_0);
      omap_writel(0x00000088, OMAP730_FLASH_ACFG_0);

      /*
       * Ethernet support through the debug board
       * CS1 timings setup
       */
      omap_writel(0x0000fff3, OMAP730_FLASH_CFG_1);
      omap_writel(0x00000000, OMAP730_FLASH_ACFG_1);

      /*
       * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
       * It is used as the Ethernet controller interrupt
       */
      omap_writel(omap_readl(OMAP730_IO_CONF_9) & 0x1FFFFFFF, OMAP730_IO_CONF_9);
}

MACHINE_START(OMAP_FSAMPLE, "OMAP730 F-Sample")
/* Maintainer: Brian Swetland <swetland@google.com> */
      .phys_io    = 0xfff00000,
      .io_pg_offst      = ((0xfef00000) >> 18) & 0xfffc,
      .boot_params      = 0x10000100,
      .map_io           = omap_fsample_map_io,
      .init_irq   = omap_fsample_init_irq,
      .init_machine     = omap_fsample_init,
      .timer            = &omap_timer,
MACHINE_END

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