forked from Minki/linux
168 lines
4.3 KiB
C
168 lines
4.3 KiB
C
/*
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* Copyright (C) 2000 Deep Blue Solutions Ltd
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* Copyright (C) 2002 Shane Nay (shane@minirl.com)
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* Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/memory.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/smsc911x.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <asm/mach/map.h>
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#include <mach/common.h>
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#include <asm/page.h>
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#include <asm/setup.h>
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#include <mach/board-mx31lite.h>
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#include <mach/imx-uart.h>
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#include <mach/iomux-mx3.h>
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#include <mach/irqs.h>
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#include <mach/mxc_nand.h>
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#include "devices.h"
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/*
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* This file contains the board-specific initialization routines.
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*/
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static unsigned int mx31lite_pins[] = {
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/* UART1 */
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MX31_PIN_CTS1__CTS1,
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MX31_PIN_RTS1__RTS1,
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MX31_PIN_TXD1__TXD1,
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MX31_PIN_RXD1__RXD1,
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/* LAN9117 IRQ pin */
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IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO),
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};
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static struct imxuart_platform_data uart_pdata = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static struct mxc_nand_platform_data mx31lite_nand_board_info = {
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.width = 1,
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.hw_ecc = 1,
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};
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static struct smsc911x_platform_config smsc911x_config = {
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
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.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
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.flags = SMSC911X_USE_16BIT,
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};
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static struct resource smsc911x_resources[] = {
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{
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.start = CS4_BASE_ADDR,
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.end = CS4_BASE_ADDR + 0x100,
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.flags = IORESOURCE_MEM,
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}, {
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.start = IOMUX_TO_IRQ(MX31_PIN_SFS6),
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.end = IOMUX_TO_IRQ(MX31_PIN_SFS6),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device smsc911x_device = {
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.name = "smsc911x",
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.id = -1,
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.num_resources = ARRAY_SIZE(smsc911x_resources),
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.resource = smsc911x_resources,
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.dev = {
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.platform_data = &smsc911x_config,
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},
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};
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/*
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* This structure defines the MX31 memory map.
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*/
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static struct map_desc mx31lite_io_desc[] __initdata = {
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{
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.virtual = SPBA0_BASE_ADDR_VIRT,
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.pfn = __phys_to_pfn(SPBA0_BASE_ADDR),
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.length = SPBA0_SIZE,
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.type = MT_DEVICE_NONSHARED
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}, {
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.virtual = CS4_BASE_ADDR_VIRT,
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.pfn = __phys_to_pfn(CS4_BASE_ADDR),
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.length = CS4_SIZE,
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.type = MT_DEVICE
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}
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};
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/*
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* Set up static virtual mappings.
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*/
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void __init mx31lite_map_io(void)
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{
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mx31_map_io();
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iotable_init(mx31lite_io_desc, ARRAY_SIZE(mx31lite_io_desc));
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}
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/*
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* Board specific initialization.
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*/
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static void __init mxc_board_init(void)
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{
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int ret;
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mxc_iomux_setup_multiple_pins(mx31lite_pins, ARRAY_SIZE(mx31lite_pins),
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"mx31lite");
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mxc_register_device(&mxc_uart_device0, &uart_pdata);
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mxc_register_device(&mxc_nand_device, &mx31lite_nand_board_info);
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/* SMSC9117 IRQ pin */
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ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");
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if (ret)
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pr_warning("could not get LAN irq gpio\n");
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else {
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gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_SFS6));
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platform_device_register(&smsc911x_device);
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}
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}
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static void __init mx31lite_timer_init(void)
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{
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mx31_clocks_init(26000000);
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}
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struct sys_timer mx31lite_timer = {
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.init = mx31lite_timer_init,
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};
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/*
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* The following uses standard kernel macros defined in arch.h in order to
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* initialize __mach_desc_MX31LITE data structure.
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*/
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MACHINE_START(MX31LITE, "LogicPD MX31 LITEKIT")
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/* Maintainer: Freescale Semiconductor, Inc. */
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.phys_io = AIPS1_BASE_ADDR,
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.io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
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.boot_params = PHYS_OFFSET + 0x100,
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.map_io = mx31lite_map_io,
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.init_irq = mx31_init_irq,
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.init_machine = mxc_board_init,
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.timer = &mx31lite_timer,
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MACHINE_END
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