mach-mx31lilly.c

/*
 *  LILLY-1131 module support
 *
 *    Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
 *
 *  based on code for other MX31 boards,
 *
 *    Copyright 2005-2007 Freescale Semiconductor
 *    Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
 *    Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
 *
 * 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/types.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/smsc911x.h>
#include <linux/mtd/physmap.h>
#include <linux/spi/spi.h>
#include <linux/mfd/mc13783.h>

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

#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/iomux-mx3.h>
#include <mach/board-mx31lilly.h>
#include <mach/spi.h>

#include "devices.h"

/*
 * This file contains module-specific initialization routines for LILLY-1131.
 * Initialization of peripherals found on the baseboard is implemented in the
 * appropriate baseboard support code.
 */

/* SMSC ethernet support */

static struct resource smsc91x_resources[] = {
	{
		.start	= MX31_CS4_BASE_ADDR,
		.end	= MX31_CS4_BASE_ADDR + 0xffff,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
		.end	= IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
		.flags	= IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
	}
};

static struct smsc911x_platform_config smsc911x_config = {
	.phy_interface	= PHY_INTERFACE_MODE_MII,
	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
	.flags		= SMSC911X_USE_32BIT |
			  SMSC911X_SAVE_MAC_ADDRESS |
			  SMSC911X_FORCE_INTERNAL_PHY,
};

static struct platform_device smsc91x_device = {
	.name		= "smsc911x",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(smsc91x_resources),
	.resource	= smsc91x_resources,
	.dev		= {
		.platform_data = &smsc911x_config,
	}
};

/* NOR flash */
static struct physmap_flash_data nor_flash_data = {
	.width  = 2,
};

static struct resource nor_flash_resource = {
	.start	= 0xa0000000,
	.end	= 0xa1ffffff,
	.flags	= IORESOURCE_MEM,
};

static struct platform_device physmap_flash_device = {
	.name	= "physmap-flash",
	.id	= 0,
	.dev	= {
		.platform_data  = &nor_flash_data,
	},
	.resource = &nor_flash_resource,
	.num_resources = 1,
};

static struct platform_device *devices[] __initdata = {
	&smsc91x_device,
	&physmap_flash_device,
};

/* SPI */

static int spi_internal_chipselect[] = {
	MXC_SPI_CS(0),
	MXC_SPI_CS(1),
	MXC_SPI_CS(2),
};

static struct spi_imx_master spi0_pdata = {
	.chipselect = spi_internal_chipselect,
	.num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
};

static struct spi_imx_master spi1_pdata = {
	.chipselect = spi_internal_chipselect,
	.num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
};

static struct mc13783_platform_data mc13783_pdata __initdata = {
	.flags = MC13783_USE_RTC | MC13783_USE_TOUCHSCREEN,
};

static struct spi_board_info mc13783_dev __initdata = {
	.modalias	= "mc13783",
	.max_speed_hz	= 1000000,
	.bus_num	= 1,
	.chip_select	= 0,
	.platform_data	= &mc13783_pdata,
};

static int mx31lilly_baseboard;
core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);

static void __init mx31lilly_board_init(void)
{
	switch (mx31lilly_baseboard) {
	case MX31LILLY_NOBOARD:
		break;
	case MX31LILLY_DB:
		mx31lilly_db_init();
		break;
	default:
		printk(KERN_ERR "Illegal mx31lilly_baseboard type %d\n",
			mx31lilly_baseboard);
	}

	mxc_iomux_alloc_pin(MX31_PIN_CS4__CS4, "Ethernet CS");

	/* SPI */
	mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SCLK__SCLK, "SPI1_CLK");
	mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MOSI__MOSI, "SPI1_TX");
	mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MISO__MISO, "SPI1_RX");
	mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, "SPI1_RDY");
	mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS0__SS0, "SPI1_SS0");
	mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS1__SS1, "SPI1_SS1");
	mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS2__SS2, "SPI1_SS2");

	mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SCLK__SCLK, "SPI2_CLK");
	mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MOSI__MOSI, "SPI2_TX");
	mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MISO__MISO, "SPI2_RX");
	mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, "SPI2_RDY");
	mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS0__SS0, "SPI2_SS0");
	mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS1__SS1, "SPI2_SS1");
	mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS2__SS2, "SPI2_SS2");

	mxc_register_device(&mxc_spi_device0, &spi0_pdata);
	mxc_register_device(&mxc_spi_device1, &spi1_pdata);
	spi_register_board_info(&mc13783_dev, 1);

	platform_add_devices(devices, ARRAY_SIZE(devices));
}

static void __init mx31lilly_timer_init(void)
{
	mx31_clocks_init(26000000);
}

static struct sys_timer mx31lilly_timer = {
	.init	= mx31lilly_timer_init,
};

MACHINE_START(LILLY1131, "INCO startec LILLY-1131")
	.phys_io	= MX31_AIPS1_BASE_ADDR,
	.io_pg_offst	= (MX31_AIPS1_BASE_ADDR_VIRT >> 18) & 0xfffc,
	.boot_params	= PHYS_OFFSET + 0x100,
	.map_io		= mx31_map_io,
	.init_irq	= mx31_init_irq,
	.init_machine	= mx31lilly_board_init,
	.timer		= &mx31lilly_timer,
MACHINE_END