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mach-pcm038.c

/*
 * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
 * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 */

#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/io.h>
#include <linux/mtd/plat-ram.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/mc13783.h>
#include <linux/spi/spi.h>
#include <linux/irq.h>

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

#include <mach/board-pcm038.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/iomux-mx27.h>
#include <mach/mxc_nand.h>
#include <mach/ulpi.h>

#include "devices-imx27.h"

static const int pcm038_pins[] __initconst = {
      /* UART1 */
      PE12_PF_UART1_TXD,
      PE13_PF_UART1_RXD,
      PE14_PF_UART1_CTS,
      PE15_PF_UART1_RTS,
      /* UART2 */
      PE3_PF_UART2_CTS,
      PE4_PF_UART2_RTS,
      PE6_PF_UART2_TXD,
      PE7_PF_UART2_RXD,
      /* UART3 */
      PE8_PF_UART3_TXD,
      PE9_PF_UART3_RXD,
      PE10_PF_UART3_CTS,
      PE11_PF_UART3_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,
      /* SPI1 */
      PD25_PF_CSPI1_RDY,
      PD29_PF_CSPI1_SCLK,
      PD30_PF_CSPI1_MISO,
      PD31_PF_CSPI1_MOSI,
      /* SSI1 */
      PC20_PF_SSI1_FS,
      PC21_PF_SSI1_RXD,
      PC22_PF_SSI1_TXD,
      PC23_PF_SSI1_CLK,
      /* SSI4 */
      PC16_PF_SSI4_FS,
      PC17_PF_SSI4_RXD,
      PC18_PF_SSI4_TXD,
      PC19_PF_SSI4_CLK,
      /* USB host */
      PA0_PF_USBH2_CLK,
      PA1_PF_USBH2_DIR,
      PA2_PF_USBH2_DATA7,
      PA3_PF_USBH2_NXT,
      PA4_PF_USBH2_STP,
      PD19_AF_USBH2_DATA4,
      PD20_AF_USBH2_DATA3,
      PD21_AF_USBH2_DATA6,
      PD22_AF_USBH2_DATA0,
      PD23_AF_USBH2_DATA2,
      PD24_AF_USBH2_DATA1,
      PD26_AF_USBH2_DATA5,
};

/*
 * Phytec's PCM038 comes with 2MiB battery buffered SRAM,
 * 16 bit width
 */

static struct platdata_mtd_ram pcm038_sram_data = {
      .bankwidth = 2,
};

static struct resource pcm038_sram_resource = {
      .start = MX27_CS1_BASE_ADDR,
      .end   = MX27_CS1_BASE_ADDR + 512 * 1024 - 1,
      .flags = IORESOURCE_MEM,
};

static struct platform_device pcm038_sram_mtd_device = {
      .name = "mtd-ram",
      .id = 0,
      .dev = {
            .platform_data = &pcm038_sram_data,
      },
      .num_resources = 1,
      .resource = &pcm038_sram_resource,
};

/*
 * Phytec's phyCORE-i.MX27 comes with 32MiB flash,
 * 16 bit width
 */
static struct physmap_flash_data pcm038_flash_data = {
      .width = 2,
};

static struct resource pcm038_flash_resource = {
      .start = 0xc0000000,
      .end   = 0xc1ffffff,
      .flags = IORESOURCE_MEM,
};

static struct platform_device pcm038_nor_mtd_device = {
      .name = "physmap-flash",
      .id = 0,
      .dev = {
            .platform_data = &pcm038_flash_data,
      },
      .num_resources = 1,
      .resource = &pcm038_flash_resource,
};

static const struct imxuart_platform_data uart_pdata __initconst = {
      .flags = IMXUART_HAVE_RTSCTS,
};

static const struct mxc_nand_platform_data
pcm038_nand_board_info __initconst = {
      .width = 1,
      .hw_ecc = 1,
};

static struct platform_device *platform_devices[] __initdata = {
      &pcm038_nor_mtd_device,
      &pcm038_sram_mtd_device,
};

/* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
 * setup other stuffs to access the sram. */
static void __init pcm038_init_sram(void)
{
      mx27_setup_weimcs(1, 0x0000d843, 0x22252521, 0x22220a00);
}

static const struct imxi2c_platform_data pcm038_i2c1_data __initconst = {
      .bitrate = 100000,
};

static struct at24_platform_data board_eeprom = {
      .byte_len = 4096,
      .page_size = 32,
      .flags = AT24_FLAG_ADDR16,
};

static struct i2c_board_info pcm038_i2c_devices[] = {
      {
            I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
            .platform_data = &board_eeprom,
      }, {
            I2C_BOARD_INFO("pcf8563", 0x51),
      }, {
            I2C_BOARD_INFO("lm75", 0x4a),
      }
};

static int pcm038_spi_cs[] = {GPIO_PORTD + 28};

static const struct spi_imx_master pcm038_spi0_data __initconst = {
      .chipselect = pcm038_spi_cs,
      .num_chipselect = ARRAY_SIZE(pcm038_spi_cs),
};

static struct regulator_consumer_supply sdhc1_consumers[] = {
      {
            .dev_name = "mxc-mmc.1",
            .supply     = "sdhc_vcc",
      },
};

static struct regulator_init_data sdhc1_data = {
      .constraints = {
            .min_uV = 3000000,
            .max_uV = 3400000,
            .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
                  REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
            .valid_modes_mask = REGULATOR_MODE_NORMAL |
                  REGULATOR_MODE_FAST,
            .always_on = 0,
            .boot_on = 0,
      },
      .num_consumer_supplies = ARRAY_SIZE(sdhc1_consumers),
      .consumer_supplies = sdhc1_consumers,
};

static struct regulator_consumer_supply cam_consumers[] = {
      {
            .dev  = NULL,
            .supply     = "imx_cam_vcc",
      },
};

static struct regulator_init_data cam_data = {
      .constraints = {
            .min_uV = 3000000,
            .max_uV = 3400000,
            .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
                  REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
            .valid_modes_mask = REGULATOR_MODE_NORMAL |
                  REGULATOR_MODE_FAST,
            .always_on = 0,
            .boot_on = 0,
      },
      .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
      .consumer_supplies = cam_consumers,
};

static struct mc13783_regulator_init_data pcm038_regulators[] = {
      {
            .id = MC13783_REG_VCAM,
            .init_data = &cam_data,
      }, {
            .id = MC13783_REG_VMMC1,
            .init_data = &sdhc1_data,
      },
};

static struct mc13783_platform_data pcm038_pmic = {
      .regulators = pcm038_regulators,
      .num_regulators = ARRAY_SIZE(pcm038_regulators),
      .flags = MC13783_USE_ADC | MC13783_USE_REGULATOR |
             MC13783_USE_TOUCHSCREEN,
};

static struct spi_board_info pcm038_spi_board_info[] __initdata = {
      {
            .modalias = "mc13783",
            .irq = IRQ_GPIOB(23),
            .max_speed_hz = 300000,
            .bus_num = 0,
            .chip_select = 0,
            .platform_data = &pcm038_pmic,
            .mode = SPI_CS_HIGH,
      }
};

static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
      .portsc     = MXC_EHCI_MODE_ULPI,
      .flags      = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_DIFF_UNI,
};

static void __init pcm038_init(void)
{
      mxc_gpio_setup_multiple_pins(pcm038_pins, ARRAY_SIZE(pcm038_pins),
                  "PCM038");

      pcm038_init_sram();

      imx27_add_imx_uart0(&uart_pdata);
      imx27_add_imx_uart1(&uart_pdata);
      imx27_add_imx_uart2(&uart_pdata);

      mxc_gpio_mode(PE16_AF_OWIRE);
      imx27_add_mxc_nand(&pcm038_nand_board_info);

      /* only the i2c master 1 is used on this CPU card */
      i2c_register_board_info(1, pcm038_i2c_devices,
                        ARRAY_SIZE(pcm038_i2c_devices));

      imx27_add_imx_i2c(1, &pcm038_i2c1_data);

      /* PE18 for user-LED D40 */
      mxc_gpio_mode(GPIO_PORTE | 18 | GPIO_GPIO | GPIO_OUT);

      mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);

      /* MC13783 IRQ */
      mxc_gpio_mode(GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN);

      imx27_add_spi_imx0(&pcm038_spi0_data);
      spi_register_board_info(pcm038_spi_board_info,
                        ARRAY_SIZE(pcm038_spi_board_info));

      imx27_add_mxc_ehci_hs(2, &usbh2_pdata);

      imx27_add_fec(NULL);
      platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
      imx27_add_imx2_wdt(NULL);
      imx27_add_mxc_w1(NULL);

#ifdef CONFIG_MACH_PCM970_BASEBOARD
      pcm970_baseboard_init();
#endif
}

static void __init pcm038_timer_init(void)
{
      mx27_clocks_init(26000000);
}

static struct sys_timer pcm038_timer = {
      .init = pcm038_timer_init,
};

MACHINE_START(PCM038, "phyCORE-i.MX27")
      .boot_params    = MX27_PHYS_OFFSET + 0x100,
      .map_io         = mx27_map_io,
      .init_irq       = mx27_init_irq,
      .init_machine   = pcm038_init,
      .timer          = &pcm038_timer,
MACHINE_END

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