arch/arm/mach-imx/mm-imx1.c

   1 /*
   2  *  author: Sascha Hauer
   3  *  Created: april 20th, 2004
   4  *  Copyright: Synertronixx GmbH
   5  *
   6  *  Common code for i.MX1 machines
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  */
  18 #include <linux/kernel.h>
  19 #include <linux/init.h>
  20 #include <linux/io.h>
  21
  22 #include <asm/mach/map.h>
  23
  24 #include <mach/common.h>
  25 #include <mach/hardware.h>
  26 #include <mach/gpio.h>
  27 #include <mach/irqs.h>
  28 #include <mach/iomux-v1.h>
  29
  30 static struct map_desc imx_io_desc[] __initdata = {
  31         imx_map_entry(MX1, IO, MT_DEVICE),
  32 };
  33
  34 void __init mx1_map_io(void)
  35 {
  36         iotable_init(imx_io_desc, ARRAY_SIZE(imx_io_desc));
  37 }
  38
  39 void __init imx1_init_early(void)
  40 {
  41         mxc_set_cpu_type(MXC_CPU_MX1);
  42         mxc_arch_reset_init(MX1_IO_ADDRESS(MX1_WDT_BASE_ADDR));
  43         imx_iomuxv1_init(MX1_IO_ADDRESS(MX1_GPIO_BASE_ADDR),
  44                         MX1_NUM_GPIO_PORT);
  45 }
  46
  47 static struct mxc_gpio_port imx1_gpio_ports[] = {
  48         DEFINE_IMX_GPIO_PORT_IRQ(MX1, 0, 1, MX1_GPIO_INT_PORTA),
  49         DEFINE_IMX_GPIO_PORT_IRQ(MX1, 1, 2, MX1_GPIO_INT_PORTB),
  50         DEFINE_IMX_GPIO_PORT_IRQ(MX1, 2, 3, MX1_GPIO_INT_PORTC),
  51         DEFINE_IMX_GPIO_PORT_IRQ(MX1, 3, 4, MX1_GPIO_INT_PORTD),
  52 };
  53
  54 void __init mx1_init_irq(void)
  55 {
  56         mxc_init_irq(MX1_IO_ADDRESS(MX1_AVIC_BASE_ADDR));
  57         mxc_gpio_init(imx1_gpio_ports,  ARRAY_SIZE(imx1_gpio_ports));
  58 }