arch/arm/mach-mx5/board-mx51_babbage.c

   1 /*
   2  * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
   3  * Copyright (C) 2009-2010 Amit Kucheria <amit.kucheria@canonical.com>
   4  *
   5  * The code contained herein is licensed under the GNU General Public
   6  * License. You may obtain a copy of the GNU General Public License
   7  * Version 2 or later at the following locations:
   8  *
   9  * http://www.opensource.org/licenses/gpl-license.html
  10  * http://www.gnu.org/copyleft/gpl.html
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15
  16 #include <mach/common.h>
  17 #include <mach/hardware.h>
  18 #include <mach/imx-uart.h>
  19 #include <mach/iomux-mx51.h>
  20
  21 #include <asm/irq.h>
  22 #include <asm/setup.h>
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/time.h>
  26
  27 #include "devices.h"
  28
  29 static struct platform_device *devices[] __initdata = {
  30         &mxc_fec_device,
  31 };
  32
  33 static struct pad_desc mx51babbage_pads[] = {
  34         /* UART1 */
  35         MX51_PAD_UART1_RXD__UART1_RXD,
  36         MX51_PAD_UART1_TXD__UART1_TXD,
  37         MX51_PAD_UART1_RTS__UART1_RTS,
  38         MX51_PAD_UART1_CTS__UART1_CTS,
  39
  40         /* UART2 */
  41         MX51_PAD_UART2_RXD__UART2_RXD,
  42         MX51_PAD_UART2_TXD__UART2_TXD,
  43
  44         /* UART3 */
  45         MX51_PAD_EIM_D25__UART3_RXD,
  46         MX51_PAD_EIM_D26__UART3_TXD,
  47         MX51_PAD_EIM_D27__UART3_RTS,
  48         MX51_PAD_EIM_D24__UART3_CTS,
  49 };
  50
  51 /* Serial ports */
  52 #if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE)
  53 static struct imxuart_platform_data uart_pdata = {
  54         .flags = IMXUART_HAVE_RTSCTS,
  55 };
  56
  57 static inline void mxc_init_imx_uart(void)
  58 {
  59         mxc_register_device(&mxc_uart_device0, &uart_pdata);
  60         mxc_register_device(&mxc_uart_device1, &uart_pdata);
  61         mxc_register_device(&mxc_uart_device2, &uart_pdata);
  62 }
  63 #else /* !SERIAL_IMX */
  64 static inline void mxc_init_imx_uart(void)
  65 {
  66 }
  67 #endif /* SERIAL_IMX */
  68
  69 /*
  70  * Board specific initialization.
  71  */
  72 static void __init mxc_board_init(void)
  73 {
  74         mxc_iomux_v3_setup_multiple_pads(mx51babbage_pads,
  75                                         ARRAY_SIZE(mx51babbage_pads));
  76         mxc_init_imx_uart();
  77         platform_add_devices(devices, ARRAY_SIZE(devices));
  78 }
  79
  80 static void __init mx51_babbage_timer_init(void)
  81 {
  82         mx51_clocks_init(32768, 24000000, 22579200, 0);
  83 }
  84
  85 static struct sys_timer mxc_timer = {
  86         .init   = mx51_babbage_timer_init,
  87 };
  88
  89 MACHINE_START(MX51_BABBAGE, "Freescale MX51 Babbage Board")
  90         /* Maintainer: Amit Kucheria <amit.kucheria@canonical.com> */
  91         .phys_io = MX51_AIPS1_BASE_ADDR,
  92         .io_pg_offst = ((MX51_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
  93         .boot_params = PHYS_OFFSET + 0x100,
  94         .map_io = mx51_map_io,
  95         .init_irq = mx51_init_irq,
  96         .init_machine = mxc_board_init,
  97         .timer = &mxc_timer,
  98 MACHINE_END