304 lines
7.6 KiB
C
304 lines
7.6 KiB
C
/*
|
|
* 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.
|
|
*/
|
|
|
|
#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/moduleparam.h>
|
|
#include <linux/smsc911x.h>
|
|
#include <linux/mfd/mc13783.h>
|
|
#include <linux/spi/spi.h>
|
|
#include <linux/usb/otg.h>
|
|
#include <linux/usb/ulpi.h>
|
|
#include <linux/mtd/physmap.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/regulator/machine.h>
|
|
#include <linux/regulator/fixed.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/iomux-mx3.h>
|
|
#include <mach/ulpi.h>
|
|
|
|
#include "devices-imx31.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 const struct mxc_nand_platform_data
|
|
mx31lite_nand_board_info __initconst = {
|
|
.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 = MX31_CS4_BASE_ADDR,
|
|
.end = MX31_CS4_BASE_ADDR + 0x100,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
/* irq number is run-time assigned */
|
|
.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 const struct spi_imx_master spi1_pdata __initconst = {
|
|
.chipselect = spi_internal_chipselect,
|
|
.num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
|
|
};
|
|
|
|
static struct mc13xxx_platform_data mc13783_pdata __initdata = {
|
|
.flags = MC13XXX_USE_RTC,
|
|
};
|
|
|
|
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 number is run-time assigned */
|
|
};
|
|
|
|
/*
|
|
* USB
|
|
*/
|
|
|
|
#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
|
|
PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
|
|
|
|
static int usbh2_init(struct platform_device *pdev)
|
|
{
|
|
int pins[] = {
|
|
MX31_PIN_USBH2_DATA0__USBH2_DATA0,
|
|
MX31_PIN_USBH2_DATA1__USBH2_DATA1,
|
|
MX31_PIN_USBH2_CLK__USBH2_CLK,
|
|
MX31_PIN_USBH2_DIR__USBH2_DIR,
|
|
MX31_PIN_USBH2_NXT__USBH2_NXT,
|
|
MX31_PIN_USBH2_STP__USBH2_STP,
|
|
};
|
|
|
|
mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
|
|
|
|
mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
|
|
|
|
mxc_iomux_set_gpr(MUX_PGP_UH2, true);
|
|
|
|
/* chip select */
|
|
mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
|
|
"USBH2_CS");
|
|
gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
|
|
gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
|
|
|
|
mdelay(10);
|
|
|
|
return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
|
|
}
|
|
|
|
static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
|
|
.init = usbh2_init,
|
|
.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
|
|
};
|
|
|
|
/*
|
|
* 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,
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
* This structure defines the MX31 memory map.
|
|
*/
|
|
static struct map_desc mx31lite_io_desc[] __initdata = {
|
|
{
|
|
.virtual = (unsigned long)MX31_CS4_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
|
|
.length = MX31_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 struct regulator_consumer_supply dummy_supplies[] = {
|
|
REGULATOR_SUPPLY("vdd33a", "smsc911x"),
|
|
REGULATOR_SUPPLY("vddvario", "smsc911x"),
|
|
};
|
|
|
|
static void __init mx31lite_init(void)
|
|
{
|
|
int ret;
|
|
|
|
imx31_soc_init();
|
|
|
|
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");
|
|
|
|
/* NOR and NAND flash */
|
|
platform_device_register(&physmap_flash_device);
|
|
imx31_add_mxc_nand(&mx31lite_nand_board_info);
|
|
|
|
imx31_add_spi_imx1(&spi1_pdata);
|
|
mc13783_spi_dev.irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
|
|
spi_register_board_info(&mc13783_spi_dev, 1);
|
|
|
|
/* USB */
|
|
usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
|
|
ULPI_OTG_DRVVBUS_EXT);
|
|
if (usbh2_pdata.otg)
|
|
imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
|
|
|
|
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
|
|
|
|
/* 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));
|
|
smsc911x_resources[1].start =
|
|
gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_SFS6));
|
|
smsc911x_resources[1].end =
|
|
gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_SFS6));
|
|
platform_device_register(&smsc911x_device);
|
|
}
|
|
}
|
|
|
|
static void __init mx31lite_timer_init(void)
|
|
{
|
|
mx31_clocks_init(26000000);
|
|
}
|
|
|
|
static struct sys_timer mx31lite_timer = {
|
|
.init = mx31lite_timer_init,
|
|
};
|
|
|
|
MACHINE_START(MX31LITE, "LogicPD i.MX31 SOM")
|
|
/* Maintainer: Freescale Semiconductor, Inc. */
|
|
.atag_offset = 0x100,
|
|
.map_io = mx31lite_map_io,
|
|
.init_early = imx31_init_early,
|
|
.init_irq = mx31_init_irq,
|
|
.handle_irq = imx31_handle_irq,
|
|
.timer = &mx31lite_timer,
|
|
.init_machine = mx31lite_init,
|
|
.restart = mxc_restart,
|
|
MACHINE_END
|