arch/arm/mach-mx3/mx31moboard.c

   1 /*
   2  *  Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group
   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
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #include <linux/types.h>
  20 #include <linux/init.h>
  21
  22 #include <linux/platform_device.h>
  23 #include <linux/mtd/physmap.h>
  24 #include <linux/mtd/partitions.h>
  25 #include <linux/memory.h>
  26
  27 #include <mach/hardware.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/time.h>
  31 #include <asm/mach/map.h>
  32 #include <mach/common.h>
  33 #include <mach/imx-uart.h>
  34 #include <mach/iomux-mx3.h>
  35
  36 #include "devices.h"
  37
  38 static struct physmap_flash_data mx31moboard_flash_data = {
  39         .width          = 2,
  40 };
  41
  42 static struct resource mx31moboard_flash_resource = {
  43         .start  = 0xa0000000,
  44         .end    = 0xa1ffffff,
  45         .flags  = IORESOURCE_MEM,
  46 };
  47
  48 static struct platform_device mx31moboard_flash = {
  49         .name   = "physmap-flash",
  50         .id     = 0,
  51         .dev    = {
  52                 .platform_data  = &mx31moboard_flash_data,
  53         },
  54         .resource = &mx31moboard_flash_resource,
  55         .num_resources = 1,
  56 };
  57
  58 static struct imxuart_platform_data uart_pdata = {
  59         .flags = IMXUART_HAVE_RTSCTS,
  60 };
  61
  62 static struct platform_device *devices[] __initdata = {
  63         &mx31moboard_flash,
  64 };
  65
  66 /*
  67  * Board specific initialization.
  68  */
  69 static void __init mxc_board_init(void)
  70 {
  71         platform_add_devices(devices, ARRAY_SIZE(devices));
  72
  73         mxc_iomux_mode(MX31_PIN_CTS1__CTS1);
  74         mxc_iomux_mode(MX31_PIN_RTS1__RTS1);
  75         mxc_iomux_mode(MX31_PIN_TXD1__TXD1);
  76         mxc_iomux_mode(MX31_PIN_RXD1__RXD1);
  77
  78         mxc_register_device(&mxc_uart_device0, &uart_pdata);
  79
  80         mxc_iomux_mode(MX31_PIN_CTS2__CTS2);
  81         mxc_iomux_mode(MX31_PIN_RTS2__RTS2);
  82         mxc_iomux_mode(MX31_PIN_TXD2__TXD2);
  83         mxc_iomux_mode(MX31_PIN_RXD2__RXD2);
  84
  85         mxc_register_device(&mxc_uart_device1, &uart_pdata);
  86
  87         mxc_iomux_mode(MX31_PIN_PC_RST__CTS5);
  88         mxc_iomux_mode(MX31_PIN_PC_VS2__RTS5);
  89         mxc_iomux_mode(MX31_PIN_PC_BVD2__TXD5);
  90         mxc_iomux_mode(MX31_PIN_PC_BVD1__RXD5);
  91
  92         mxc_register_device(&mxc_uart_device4, &uart_pdata);
  93 }
  94
  95 /*
  96  * This structure defines static mappings for the mx31moboard.
  97  */
  98 static struct map_desc mx31moboard_io_desc[] __initdata = {
  99         {
 100                 .virtual        = AIPS1_BASE_ADDR_VIRT,
 101                 .pfn            = __phys_to_pfn(AIPS1_BASE_ADDR),
 102                 .length         = AIPS1_SIZE,
 103                 .type           = MT_DEVICE_NONSHARED
 104         }, {
 105                 .virtual        = AIPS2_BASE_ADDR_VIRT,
 106                 .pfn            = __phys_to_pfn(AIPS2_BASE_ADDR),
 107                 .length         = AIPS2_SIZE,
 108                 .type           = MT_DEVICE_NONSHARED
 109         },
 110 };
 111
 112 /*
 113  * Set up static virtual mappings.
 114  */
 115 void __init mx31moboard_map_io(void)
 116 {
 117         mxc_map_io();
 118         iotable_init(mx31moboard_io_desc, ARRAY_SIZE(mx31moboard_io_desc));
 119 }
 120
 121 static void __init mx31moboard_timer_init(void)
 122 {
 123         mxc_clocks_init(26000000);
 124         mxc_timer_init("ipg_clk.0");
 125 }
 126
 127 struct sys_timer mx31moboard_timer = {
 128         .init   = mx31moboard_timer_init,
 129 };
 130
 131 MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
 132         /* Maintainer: Valentin Longchamp, EPFL Mobots group */
 133         .phys_io        = AIPS1_BASE_ADDR,
 134         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 135         .boot_params    = PHYS_OFFSET + 0x100,
 136         .map_io         = mx31moboard_map_io,
 137         .init_irq       = mxc_init_irq,
 138         .init_machine   = mxc_board_init,
 139         .timer          = &mx31moboard_timer,
 140 MACHINE_END
 141