/*
* Copyright (C) 2000 Deep Blue Solutions Ltd
* Copyright (C) 2002 Shane Nay (shane@minirl.com)
* Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright (C) 2009 Daniel Mack <daniel@caiaq.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/memory.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/smsc911x.h>
#include <linux/mfd/mc13783.h>
#include <linux/spi/spi.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/board-mx31lite.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/irqs.h>
#include <mach/mxc_nand.h>
#include <mach/spi.h>
#include "devices.h"
/*
* This file contains the module-specific initialization routines.
*/
static unsigned int mx31lite_pins[] = {
/* LAN9117 IRQ pin */
IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO),
/* SPI 1 */
MX31_PIN_CSPI2_SCLK__SCLK,
MX31_PIN_CSPI2_MOSI__MOSI,
MX31_PIN_CSPI2_MISO__MISO,
MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
MX31_PIN_CSPI2_SS0__SS0,
MX31_PIN_CSPI2_SS1__SS1,
MX31_PIN_CSPI2_SS2__SS2,
};
static struct mxc_nand_platform_data mx31lite_nand_board_info = {
.width = 1,
.hw_ecc = 1,
};
static struct smsc911x_platform_config smsc911x_config = {
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
.flags = SMSC911X_USE_16BIT,
};
static struct resource smsc911x_resources[] = {
{
.start = CS4_BASE_ADDR,
.end = CS4_BASE_ADDR + 0x100,
.flags = IORESOURCE_MEM,
}, {
.start = IOMUX_TO_IRQ(MX31_PIN_SFS6),
.end = IOMUX_TO_IRQ(MX31_PIN_SFS6),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device smsc911x_device = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(smsc911x_resources),
.resource = smsc911x_resources,
.dev = {
.platform_data = &smsc911x_config,
},
};
/*
* SPI
*
* The MC13783 is the only hard-wired SPI device on the module.
*/
static int spi_internal_chipselect[] = {
MXC_SPI_CS(0),
};
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_REGULATOR,
};
static struct spi_board_info mc13783_spi_dev __initdata = {
.modalias = "mc13783",
.max_speed_hz = 1000000,
.bus_num = 1,
.chip_select = 0,
.platform_data = &mc13783_pdata,
.irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
};
/*
* This structure defines the MX31 memory map.
*/
static struct map_desc mx31lite_io_desc[] __initdata = {
{
.virtual = SPBA0_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(SPBA0_BASE_ADDR),
.length = SPBA0_SIZE,
.type = MT_DEVICE_NONSHARED
}, {
.virtual = CS4_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(CS4_BASE_ADDR),
.length = CS4_SIZE,
.type = MT_DEVICE
}
};
/*
* Set up static virtual mappings.
*/
void __init mx31lite_map_io(void)
{
mx31_map_io();
iotable_init(mx31lite_io_desc, ARRAY_SIZE(mx31lite_io_desc));
}
static int mx31lite_baseboard;
core_param(mx31lite_baseboard, mx31lite_baseboard, int, 0444);
static void __init mxc_board_init(void)
{
int ret;
switch (mx31lite_baseboard) {
case MX31LITE_NOBOARD:
break;
case MX31LITE_DB:
mx31lite_db_init();
break;
default:
printk(KERN_ERR "Illegal mx31lite_baseboard type %d\n",
mx31lite_baseboard);
}
mxc_iomux_setup_multiple_pins(mx31lite_pins, ARRAY_SIZE(mx31lite_pins),
"mx31lite");
mxc_register_device(&mxc_nand_device, &mx31lite_nand_board_info);
mxc_register_device(&mxc_spi_device1, &spi1_pdata);
spi_register_board_info(&mc13783_spi_dev, 1);
/* SMSC9117 IRQ pin */
ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");
if (ret)
pr_warning("could not get LAN irq gpio\n");
else {
gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_SFS6));
platform_device_register(&smsc911x_device);
}
}
static void __init mx31lite_timer_init(void)
{
mx31_clocks_init(26000000);
}
struct sys_timer mx31lite_timer = {
.init = mx31lite_timer_init,
};
MACHINE_START(MX31LITE, "LogicPD i.MX31 SOM")
/* Maintainer: Freescale Semiconductor, Inc. */
.phys_io = AIPS1_BASE_ADDR,
.io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
.boot_params = PHYS_OFFSET + 0x100,
.map_io = mx31lite_map_io,
.init_irq = mx31_init_irq,
.init_machine = mxc_board_init,
.timer = &mx31lite_timer,
MACHINE_END
