mirror of
https://github.com/torvalds/linux.git
synced 2024-11-04 11:04:38 +00:00
1553a1ec83
Add basic support to the MX31PDK development board, also known as MX31 3DS or MX31 3-stack board (http://www.freescale.com/imx31pdk). Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: sascha Hauer <s.hauer@pengutronix.de>
116 lines
3.0 KiB
C
116 lines
3.0 KiB
C
/*
|
|
* Copyright 2008 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/irq.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/time.h>
|
|
#include <asm/memory.h>
|
|
#include <asm/mach/map.h>
|
|
#include <mach/common.h>
|
|
#include <mach/board-mx31pdk.h>
|
|
#include <mach/imx-uart.h>
|
|
#include <mach/iomux-mx3.h>
|
|
#include "devices.h"
|
|
|
|
/*!
|
|
* @file mx31pdk.c
|
|
*
|
|
* @brief This file contains the board-specific initialization routines.
|
|
*
|
|
* @ingroup System
|
|
*/
|
|
|
|
static struct imxuart_platform_data uart_pdata = {
|
|
.flags = IMXUART_HAVE_RTSCTS,
|
|
};
|
|
|
|
static inline void mxc_init_imx_uart(void)
|
|
{
|
|
mxc_iomux_mode(MX31_PIN_CTS1__CTS1);
|
|
mxc_iomux_mode(MX31_PIN_RTS1__RTS1);
|
|
mxc_iomux_mode(MX31_PIN_TXD1__TXD1);
|
|
mxc_iomux_mode(MX31_PIN_RXD1__RXD1);
|
|
|
|
mxc_register_device(&mxc_uart_device0, &uart_pdata);
|
|
}
|
|
|
|
/*!
|
|
* This structure defines static mappings for the i.MX31PDK board.
|
|
*/
|
|
static struct map_desc mx31pdk_io_desc[] __initdata = {
|
|
{
|
|
.virtual = AIPS1_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(AIPS1_BASE_ADDR),
|
|
.length = AIPS1_SIZE,
|
|
.type = MT_DEVICE_NONSHARED
|
|
}, {
|
|
.virtual = AIPS2_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(AIPS2_BASE_ADDR),
|
|
.length = AIPS2_SIZE,
|
|
.type = MT_DEVICE_NONSHARED
|
|
},
|
|
};
|
|
|
|
/*!
|
|
* Set up static virtual mappings.
|
|
*/
|
|
static void __init mx31pdk_map_io(void)
|
|
{
|
|
mxc_map_io();
|
|
iotable_init(mx31pdk_io_desc, ARRAY_SIZE(mx31pdk_io_desc));
|
|
}
|
|
|
|
/*!
|
|
* Board specific initialization.
|
|
*/
|
|
static void __init mxc_board_init(void)
|
|
{
|
|
mxc_init_imx_uart();
|
|
}
|
|
|
|
static void __init mx31pdk_timer_init(void)
|
|
{
|
|
mxc_clocks_init(26000000);
|
|
mxc_timer_init("ipg_clk.0");
|
|
}
|
|
|
|
static struct sys_timer mx31pdk_timer = {
|
|
.init = mx31pdk_timer_init,
|
|
};
|
|
|
|
/*
|
|
* The following uses standard kernel macros defined in arch.h in order to
|
|
* initialize __mach_desc_MX31PDK data structure.
|
|
*/
|
|
MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
|
|
/* 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 = mx31pdk_map_io,
|
|
.init_irq = mxc_init_irq,
|
|
.init_machine = mxc_board_init,
|
|
.timer = &mx31pdk_timer,
|
|
MACHINE_END
|