Logo Search packages:      
Sourcecode: linux version File versions  Download package

mx27ads.c

/*
 *  Copyright (C) 2000 Deep Blue Solutions Ltd
 *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
 *  Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/i2c.h>
#include <linux/irq.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <mach/gpio.h>
#include <mach/imx-uart.h>
#include <mach/iomux.h>
#include <mach/board-mx27ads.h>
#include <mach/mxc_nand.h>
#include <mach/i2c.h>
#include <mach/imxfb.h>
#include <mach/mmc.h>

#include "devices.h"

static unsigned int mx27ads_pins[] = {
      /* UART0 */
      PE12_PF_UART1_TXD,
      PE13_PF_UART1_RXD,
      PE14_PF_UART1_CTS,
      PE15_PF_UART1_RTS,
      /* UART1 */
      PE3_PF_UART2_CTS,
      PE4_PF_UART2_RTS,
      PE6_PF_UART2_TXD,
      PE7_PF_UART2_RXD,
      /* UART2 */
      PE8_PF_UART3_TXD,
      PE9_PF_UART3_RXD,
      PE10_PF_UART3_CTS,
      PE11_PF_UART3_RTS,
      /* UART3 */
      PB26_AF_UART4_RTS,
      PB28_AF_UART4_TXD,
      PB29_AF_UART4_CTS,
      PB31_AF_UART4_RXD,
      /* UART4 */
      PB18_AF_UART5_TXD,
      PB19_AF_UART5_RXD,
      PB20_AF_UART5_CTS,
      PB21_AF_UART5_RTS,
      /* UART5 */
      PB10_AF_UART6_TXD,
      PB12_AF_UART6_CTS,
      PB11_AF_UART6_RXD,
      PB13_AF_UART6_RTS,
      /* FEC */
      PD0_AIN_FEC_TXD0,
      PD1_AIN_FEC_TXD1,
      PD2_AIN_FEC_TXD2,
      PD3_AIN_FEC_TXD3,
      PD4_AOUT_FEC_RX_ER,
      PD5_AOUT_FEC_RXD1,
      PD6_AOUT_FEC_RXD2,
      PD7_AOUT_FEC_RXD3,
      PD8_AF_FEC_MDIO,
      PD9_AIN_FEC_MDC,
      PD10_AOUT_FEC_CRS,
      PD11_AOUT_FEC_TX_CLK,
      PD12_AOUT_FEC_RXD0,
      PD13_AOUT_FEC_RX_DV,
      PD14_AOUT_FEC_RX_CLK,
      PD15_AOUT_FEC_COL,
      PD16_AIN_FEC_TX_ER,
      PF23_AIN_FEC_TX_EN,
      /* I2C2 */
      PC5_PF_I2C2_SDA,
      PC6_PF_I2C2_SCL,
      /* FB */
      PA5_PF_LSCLK,
      PA6_PF_LD0,
      PA7_PF_LD1,
      PA8_PF_LD2,
      PA9_PF_LD3,
      PA10_PF_LD4,
      PA11_PF_LD5,
      PA12_PF_LD6,
      PA13_PF_LD7,
      PA14_PF_LD8,
      PA15_PF_LD9,
      PA16_PF_LD10,
      PA17_PF_LD11,
      PA18_PF_LD12,
      PA19_PF_LD13,
      PA20_PF_LD14,
      PA21_PF_LD15,
      PA22_PF_LD16,
      PA23_PF_LD17,
      PA24_PF_REV,
      PA25_PF_CLS,
      PA26_PF_PS,
      PA27_PF_SPL_SPR,
      PA28_PF_HSYNC,
      PA29_PF_VSYNC,
      PA30_PF_CONTRAST,
      PA31_PF_OE_ACD,
      /* OWIRE */
      PE16_AF_OWIRE,
      /* SDHC1*/
      PE18_PF_SD1_D0,
      PE19_PF_SD1_D1,
      PE20_PF_SD1_D2,
      PE21_PF_SD1_D3,
      PE22_PF_SD1_CMD,
      PE23_PF_SD1_CLK,
      /* SDHC2*/
      PB4_PF_SD2_D0,
      PB5_PF_SD2_D1,
      PB6_PF_SD2_D2,
      PB7_PF_SD2_D3,
      PB8_PF_SD2_CMD,
      PB9_PF_SD2_CLK,
};

static struct mxc_nand_platform_data mx27ads_nand_board_info = {
      .width = 1,
      .hw_ecc = 1,
};

/* ADS's NOR flash */
static struct physmap_flash_data mx27ads_flash_data = {
      .width = 2,
};

static struct resource mx27ads_flash_resource = {
      .start = 0xc0000000,
      .end = 0xc0000000 + 0x02000000 - 1,
      .flags = IORESOURCE_MEM,

};

static struct platform_device mx27ads_nor_mtd_device = {
      .name = "physmap-flash",
      .id = 0,
      .dev = {
            .platform_data = &mx27ads_flash_data,
      },
      .num_resources = 1,
      .resource = &mx27ads_flash_resource,
};

static struct imxi2c_platform_data mx27ads_i2c_data = {
      .bitrate = 100000,
};

static struct i2c_board_info mx27ads_i2c_devices[] = {
};

void lcd_power(int on)
{
      if (on)
            __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_SET_REG);
      else
            __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_CLEAR_REG);
}

static struct imx_fb_videomode mx27ads_modes[] = {
      {
            .mode = {
                  .name       = "Sharp-LQ035Q7",
                  .refresh    = 60,
                  .xres       = 240,
                  .yres       = 320,
                  .pixclock   = 188679, /* in ps (5.3MHz) */
                  .hsync_len  = 1,
                  .left_margin      = 9,
                  .right_margin     = 16,
                  .vsync_len  = 1,
                  .upper_margin     = 7,
                  .lower_margin     = 9,
            },
            .bpp        = 16,
            .pcr        = 0xFB008BC0,
      },
};

static struct imx_fb_platform_data mx27ads_fb_data = {
      .mode = mx27ads_modes,
      .num_modes = ARRAY_SIZE(mx27ads_modes),

      /*
       * - HSYNC active high
       * - VSYNC active high
       * - clk notenabled while idle
       * - clock inverted
       * - data not inverted
       * - data enable low active
       * - enable sharp mode
       */
      .pwmr       = 0x00A903FF,
      .lscr1            = 0x00120300,
      .dmacr            = 0x00020010,

      .lcd_power  = lcd_power,
};

static int mx27ads_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
                        void *data)
{
      return request_irq(IRQ_GPIOE(21), detect_irq, IRQF_TRIGGER_RISING,
                     "sdhc1-card-detect", data);
}

static int mx27ads_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
                        void *data)
{
      return request_irq(IRQ_GPIOB(7), detect_irq, IRQF_TRIGGER_RISING,
                     "sdhc2-card-detect", data);
}

static void mx27ads_sdhc1_exit(struct device *dev, void *data)
{
      free_irq(IRQ_GPIOE(21), data);
}

static void mx27ads_sdhc2_exit(struct device *dev, void *data)
{
      free_irq(IRQ_GPIOB(7), data);
}

static struct imxmmc_platform_data sdhc1_pdata = {
      .init = mx27ads_sdhc1_init,
      .exit = mx27ads_sdhc1_exit,
};

static struct imxmmc_platform_data sdhc2_pdata = {
      .init = mx27ads_sdhc2_init,
      .exit = mx27ads_sdhc2_exit,
};

static struct platform_device *platform_devices[] __initdata = {
      &mx27ads_nor_mtd_device,
      &mxc_fec_device,
      &mxc_w1_master_device,
};

static struct imxuart_platform_data uart_pdata[] = {
      {
            .flags = IMXUART_HAVE_RTSCTS,
      }, {
            .flags = IMXUART_HAVE_RTSCTS,
      }, {
            .flags = IMXUART_HAVE_RTSCTS,
      }, {
            .flags = IMXUART_HAVE_RTSCTS,
      }, {
            .flags = IMXUART_HAVE_RTSCTS,
      }, {
            .flags = IMXUART_HAVE_RTSCTS,
      },
};

static void __init mx27ads_board_init(void)
{
      mxc_gpio_setup_multiple_pins(mx27ads_pins, ARRAY_SIZE(mx27ads_pins),
                  "mx27ads");

      mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
      mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
      mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
      mxc_register_device(&mxc_uart_device3, &uart_pdata[3]);
      mxc_register_device(&mxc_uart_device4, &uart_pdata[4]);
      mxc_register_device(&mxc_uart_device5, &uart_pdata[5]);
      mxc_register_device(&mxc_nand_device, &mx27ads_nand_board_info);

      /* only the i2c master 1 is used on this CPU card */
      i2c_register_board_info(1, mx27ads_i2c_devices,
                        ARRAY_SIZE(mx27ads_i2c_devices));
      mxc_register_device(&mxc_i2c_device1, &mx27ads_i2c_data);
      mxc_register_device(&mxc_fb_device, &mx27ads_fb_data);
      mxc_register_device(&mxc_sdhc_device0, &sdhc1_pdata);
      mxc_register_device(&mxc_sdhc_device1, &sdhc2_pdata);

      platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
}

static void __init mx27ads_timer_init(void)
{
      unsigned long fref = 26000000;

      if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
            fref = 27000000;

      mx27_clocks_init(fref);
}

static struct sys_timer mx27ads_timer = {
      .init = mx27ads_timer_init,
};

static struct map_desc mx27ads_io_desc[] __initdata = {
      {
            .virtual = PBC_BASE_ADDRESS,
            .pfn = __phys_to_pfn(CS4_BASE_ADDR),
            .length = SZ_1M,
            .type = MT_DEVICE,
      },
};

static void __init mx27ads_map_io(void)
{
      mx27_map_io();
      iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
}

MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
      /* maintainer: Freescale Semiconductor, Inc. */
      .phys_io        = AIPI_BASE_ADDR,
      .io_pg_offst    = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
      .boot_params    = PHYS_OFFSET + 0x100,
      .map_io         = mx27ads_map_io,
      .init_irq       = mx27_init_irq,
      .init_machine   = mx27ads_board_init,
      .timer          = &mx27ads_timer,
MACHINE_END


Generated by  Doxygen 1.6.0   Back to index