arch/arm/mach-mx3/mx31pdk.c

   1 /*
   2  *  Copyright 2008 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
  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 #include <linux/clk.h>
  22 #include <linux/irq.h>
  23
  24 #include <mach/hardware.h>
  25 #include <asm/mach-types.h>
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/time.h>
  28 #include <asm/memory.h>
  29 #include <asm/mach/map.h>
  30 #include <mach/common.h>
  31 #include <mach/board-mx31pdk.h>
  32 #include <mach/imx-uart.h>
  33 #include <mach/iomux-mx3.h>
  34 #include "devices.h"
  35
  36 /*!
  37  * @file mx31pdk.c
  38  *
  39  * @brief This file contains the board-specific initialization routines.
  40  *
  41  * @ingroup System
  42  */
  43
  44 static struct imxuart_platform_data uart_pdata = {
  45         .flags = IMXUART_HAVE_RTSCTS,
  46 };
  47
  48 static int uart_pins[] = {
  49         MX31_PIN_CTS1__CTS1,
  50         MX31_PIN_RTS1__RTS1,
  51         MX31_PIN_TXD1__TXD1,
  52         MX31_PIN_RXD1__RXD1
  53 };
  54
  55 static inline void mxc_init_imx_uart(void)
  56 {
  57         mxc_iomux_setup_multiple_pins(uart_pins, ARRAY_SIZE(uart_pins), "uart-0");
  58         mxc_register_device(&mxc_uart_device0, &uart_pdata);
  59 }
  60
  61 /*!
  62  * Board specific initialization.
  63  */
  64 static void __init mxc_board_init(void)
  65 {
  66         mxc_init_imx_uart();
  67 }
  68
  69 static void __init mx31pdk_timer_init(void)
  70 {
  71         mx31_clocks_init(26000000);
  72 }
  73
  74 static struct sys_timer mx31pdk_timer = {
  75         .init   = mx31pdk_timer_init,
  76 };
  77
  78 /*
  79  * The following uses standard kernel macros defined in arch.h in order to
  80  * initialize __mach_desc_MX31PDK data structure.
  81  */
  82 MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
  83         /* Maintainer: Freescale Semiconductor, Inc. */
  84         .phys_io        = AIPS1_BASE_ADDR,
  85         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
  86         .boot_params    = PHYS_OFFSET + 0x100,
  87         .map_io         = mx31_map_io,
  88         .init_irq       = mxc_init_irq,
  89         .init_machine   = mxc_board_init,
  90         .timer          = &mx31pdk_timer,
  91 MACHINE_END