143 lines
3.7 KiB
C
143 lines
3.7 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.
|
||
|
|
*
|
||
|
|
* 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/serial_8250.h>
|
||
|
|
|
||
|
|
#include <asm/hardware.h>
|
||
|
|
#include <asm/mach-types.h>
|
||
|
|
#include <asm/mach/arch.h>
|
||
|
|
#include <asm/memory.h>
|
||
|
|
#include <asm/mach/map.h>
|
||
|
|
#include <asm/arch/common.h>
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @file mx31ads.c
|
||
|
|
*
|
||
|
|
* @brief This file contains the board-specific initialization routines.
|
||
|
|
*
|
||
|
|
* @ingroup System
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
|
||
|
|
/*!
|
||
|
|
* The serial port definition structure.
|
||
|
|
*/
|
||
|
|
static struct plat_serial8250_port serial_platform_data[] = {
|
||
|
|
{
|
||
|
|
.membase = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTA),
|
||
|
|
.mapbase = (unsigned long)(CS4_BASE_ADDR + PBC_SC16C652_UARTA),
|
||
|
|
.irq = EXPIO_INT_XUART_INTA,
|
||
|
|
.uartclk = 14745600,
|
||
|
|
.regshift = 0,
|
||
|
|
.iotype = UPIO_MEM,
|
||
|
|
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ,
|
||
|
|
}, {
|
||
|
|
.membase = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTB),
|
||
|
|
.mapbase = (unsigned long)(CS4_BASE_ADDR + PBC_SC16C652_UARTB),
|
||
|
|
.irq = EXPIO_INT_XUART_INTB,
|
||
|
|
.uartclk = 14745600,
|
||
|
|
.regshift = 0,
|
||
|
|
.iotype = UPIO_MEM,
|
||
|
|
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ,
|
||
|
|
},
|
||
|
|
{},
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_device serial_device = {
|
||
|
|
.name = "serial8250",
|
||
|
|
.id = 0,
|
||
|
|
.dev = {
|
||
|
|
.platform_data = serial_platform_data,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init mxc_init_extuart(void)
|
||
|
|
{
|
||
|
|
return platform_device_register(&serial_device);
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
static inline int mxc_init_extuart(void)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* This structure defines static mappings for the i.MX31ADS board.
|
||
|
|
*/
|
||
|
|
static struct map_desc mx31ads_io_desc[] __initdata = {
|
||
|
|
{
|
||
|
|
.virtual = AIPS1_BASE_ADDR_VIRT,
|
||
|
|
.pfn = __phys_to_pfn(AIPS1_BASE_ADDR),
|
||
|
|
.length = AIPS1_SIZE,
|
||
|
|
.type = MT_NONSHARED_DEVICE
|
||
|
|
}, {
|
||
|
|
.virtual = SPBA0_BASE_ADDR_VIRT,
|
||
|
|
.pfn = __phys_to_pfn(SPBA0_BASE_ADDR),
|
||
|
|
.length = SPBA0_SIZE,
|
||
|
|
.type = MT_NONSHARED_DEVICE
|
||
|
|
}, {
|
||
|
|
.virtual = AIPS2_BASE_ADDR_VIRT,
|
||
|
|
.pfn = __phys_to_pfn(AIPS2_BASE_ADDR),
|
||
|
|
.length = AIPS2_SIZE,
|
||
|
|
.type = MT_NONSHARED_DEVICE
|
||
|
|
}, {
|
||
|
|
.virtual = CS4_BASE_ADDR_VIRT,
|
||
|
|
.pfn = __phys_to_pfn(CS4_BASE_ADDR),
|
||
|
|
.length = CS4_SIZE / 2,
|
||
|
|
.type = MT_DEVICE
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* Set up static virtual mappings.
|
||
|
|
*/
|
||
|
|
void __init mx31ads_map_io(void)
|
||
|
|
{
|
||
|
|
mxc_map_io();
|
||
|
|
iotable_init(mx31ads_io_desc, ARRAY_SIZE(mx31ads_io_desc));
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* Board specific initialization.
|
||
|
|
*/
|
||
|
|
static void __init mxc_board_init(void)
|
||
|
|
{
|
||
|
|
mxc_init_extuart();
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The following uses standard kernel macros defined in arch.h in order to
|
||
|
|
* initialize __mach_desc_MX31ADS data structure.
|
||
|
|
*/
|
||
|
|
MACHINE_START(MX31ADS, "Freescale MX31ADS")
|
||
|
|
/* 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 = mx31ads_map_io,
|
||
|
|
.init_irq = mxc_init_irq,
|
||
|
|
.init_machine = mxc_board_init,
|
||
|
|
.timer = &mxc_timer,
|
||
|
|
MACHINE_END
|