arch/arm/mach-mx5/mm-mx50.c

   1 /*
   2  * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Create static mapping between physical to virtual memory.
  19  */
  20
  21 #include <linux/mm.h>
  22 #include <linux/init.h>
  23
  24 #include <asm/mach/map.h>
  25
  26 #include <mach/hardware.h>
  27 #include <mach/common.h>
  28 #include <mach/iomux-v3.h>
  29 #include <mach/gpio.h>
  30 #include <mach/irqs.h>
  31
  32 /*
  33  * Define the MX50 memory map.
  34  */
  35 static struct map_desc mx50_io_desc[] __initdata = {
  36         imx_map_entry(MX50, TZIC, MT_DEVICE),
  37         imx_map_entry(MX50, SPBA0, MT_DEVICE),
  38         imx_map_entry(MX50, AIPS1, MT_DEVICE),
  39         imx_map_entry(MX50, AIPS2, MT_DEVICE),
  40 };
  41
  42 /*
  43  * This function initializes the memory map. It is called during the
  44  * system startup to create static physical to virtual memory mappings
  45  * for the IO modules.
  46  */
  47 void __init mx50_map_io(void)
  48 {
  49         iotable_init(mx50_io_desc, ARRAY_SIZE(mx50_io_desc));
  50 }
  51
  52 void __init imx50_init_early(void)
  53 {
  54         mxc_set_cpu_type(MXC_CPU_MX50);
  55         mxc_iomux_v3_init(MX50_IO_ADDRESS(MX50_IOMUXC_BASE_ADDR));
  56         mxc_arch_reset_init(MX50_IO_ADDRESS(MX50_WDOG_BASE_ADDR));
  57 }
  58
  59 static struct mxc_gpio_port imx50_gpio_ports[] = {
  60         DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 0, 1, MX50_INT_GPIO1_LOW, MX50_INT_GPIO1_HIGH),
  61         DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 1, 2, MX50_INT_GPIO2_LOW, MX50_INT_GPIO2_HIGH),
  62         DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 2, 3, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH),
  63         DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 3, 4, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH),
  64         DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 4, 5, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH),
  65         DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 5, 6, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH),
  66 };
  67
  68 void __init mx50_init_irq(void)
  69 {
  70         tzic_init_irq(MX50_IO_ADDRESS(MX50_TZIC_BASE_ADDR));
  71         mxc_gpio_init(imx50_gpio_ports, ARRAY_SIZE(imx50_gpio_ports));
  72 }