mirror of https://gitee.com/openkylin/linux.git
87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/*
|
|
* arch/arm/mach-imx/mm-imx21.c
|
|
*
|
|
* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.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., 51 Franklin Street, Fifth Floor, Boston,
|
|
* MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include <linux/mm.h>
|
|
#include <linux/init.h>
|
|
#include <mach/hardware.h>
|
|
#include <mach/common.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/mach/map.h>
|
|
#include <mach/gpio.h>
|
|
#include <mach/irqs.h>
|
|
#include <mach/iomux-v1.h>
|
|
|
|
/* MX21 memory map definition */
|
|
static struct map_desc imx21_io_desc[] __initdata = {
|
|
/*
|
|
* this fixed mapping covers:
|
|
* - AIPI1
|
|
* - AIPI2
|
|
* - AITC
|
|
* - ROM Patch
|
|
* - and some reserved space
|
|
*/
|
|
imx_map_entry(MX21, AIPI, MT_DEVICE),
|
|
/*
|
|
* this fixed mapping covers:
|
|
* - CSI
|
|
* - ATA
|
|
*/
|
|
imx_map_entry(MX21, SAHB1, MT_DEVICE),
|
|
/*
|
|
* this fixed mapping covers:
|
|
* - EMI
|
|
*/
|
|
imx_map_entry(MX21, X_MEMC, MT_DEVICE),
|
|
};
|
|
|
|
/*
|
|
* Initialize the memory map. It is called during the
|
|
* system startup to create static physical to virtual
|
|
* memory map for the IO modules.
|
|
*/
|
|
void __init mx21_map_io(void)
|
|
{
|
|
iotable_init(imx21_io_desc, ARRAY_SIZE(imx21_io_desc));
|
|
}
|
|
|
|
void __init imx21_init_early(void)
|
|
{
|
|
mxc_set_cpu_type(MXC_CPU_MX21);
|
|
mxc_arch_reset_init(MX21_IO_ADDRESS(MX21_WDOG_BASE_ADDR));
|
|
imx_iomuxv1_init(MX21_IO_ADDRESS(MX21_GPIO_BASE_ADDR),
|
|
MX21_NUM_GPIO_PORT);
|
|
}
|
|
|
|
static struct mxc_gpio_port imx21_gpio_ports[] = {
|
|
DEFINE_IMX_GPIO_PORT_IRQ(MX21, 0, 1, MX21_INT_GPIO),
|
|
DEFINE_IMX_GPIO_PORT(MX21, 1, 2),
|
|
DEFINE_IMX_GPIO_PORT(MX21, 2, 3),
|
|
DEFINE_IMX_GPIO_PORT(MX21, 3, 4),
|
|
DEFINE_IMX_GPIO_PORT(MX21, 4, 5),
|
|
DEFINE_IMX_GPIO_PORT(MX21, 5, 6),
|
|
};
|
|
|
|
void __init mx21_init_irq(void)
|
|
{
|
|
mxc_init_irq(MX21_IO_ADDRESS(MX21_AVIC_BASE_ADDR));
|
|
mxc_gpio_init(imx21_gpio_ports, ARRAY_SIZE(imx21_gpio_ports));
|
|
}
|