arch/arm/mach-mx5/board-mx51_3ds.c

   1 /*
   2  * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
   3  * Copyright (C) 2010 Jason Wang <jason77.wang@gmail.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/irq.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/spi/spi.h>
  16 #include <linux/gpio.h>
  17
  18 #include <asm/mach-types.h>
  19 #include <asm/mach/arch.h>
  20 #include <asm/mach/time.h>
  21
  22 #include <mach/hardware.h>
  23 #include <mach/common.h>
  24 #include <mach/iomux-mx51.h>
  25 #include <mach/3ds_debugboard.h>
  26
  27 #include "devices-imx51.h"
  28 #include "devices.h"
  29
  30 #define EXPIO_PARENT_INT        gpio_to_irq(IMX_GPIO_NR(1, 6))
  31 #define MX51_3DS_ECSPI2_CS      (GPIO_PORTC + 28)
  32
  33 static iomux_v3_cfg_t mx51_3ds_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         MX51_PAD_EIM_D25__UART2_CTS,
  44         MX51_PAD_EIM_D26__UART2_RTS,
  45
  46         /* UART3 */
  47         MX51_PAD_UART3_RXD__UART3_RXD,
  48         MX51_PAD_UART3_TXD__UART3_TXD,
  49         MX51_PAD_EIM_D24__UART3_CTS,
  50         MX51_PAD_EIM_D27__UART3_RTS,
  51
  52         /* CPLD PARENT IRQ PIN */
  53         MX51_PAD_GPIO1_6__GPIO1_6,
  54
  55         /* KPP */
  56         MX51_PAD_KEY_ROW0__KEY_ROW0,
  57         MX51_PAD_KEY_ROW1__KEY_ROW1,
  58         MX51_PAD_KEY_ROW2__KEY_ROW2,
  59         MX51_PAD_KEY_ROW3__KEY_ROW3,
  60         MX51_PAD_KEY_COL0__KEY_COL0,
  61         MX51_PAD_KEY_COL1__KEY_COL1,
  62         MX51_PAD_KEY_COL2__KEY_COL2,
  63         MX51_PAD_KEY_COL3__KEY_COL3,
  64         MX51_PAD_KEY_COL4__KEY_COL4,
  65         MX51_PAD_KEY_COL5__KEY_COL5,
  66
  67         /* eCSPI2 */
  68         MX51_PAD_NANDF_RB2__ECSPI2_SCLK,
  69         MX51_PAD_NANDF_RB3__ECSPI2_MISO,
  70         MX51_PAD_NANDF_D15__ECSPI2_MOSI,
  71         MX51_PAD_NANDF_D12__GPIO3_28,
  72 };
  73
  74 /* Serial ports */
  75 static const struct imxuart_platform_data uart_pdata __initconst = {
  76         .flags = IMXUART_HAVE_RTSCTS,
  77 };
  78
  79 static int mx51_3ds_board_keymap[] = {
  80         KEY(0, 0, KEY_1),
  81         KEY(0, 1, KEY_2),
  82         KEY(0, 2, KEY_3),
  83         KEY(0, 3, KEY_F1),
  84         KEY(0, 4, KEY_UP),
  85         KEY(0, 5, KEY_F2),
  86
  87         KEY(1, 0, KEY_4),
  88         KEY(1, 1, KEY_5),
  89         KEY(1, 2, KEY_6),
  90         KEY(1, 3, KEY_LEFT),
  91         KEY(1, 4, KEY_SELECT),
  92         KEY(1, 5, KEY_RIGHT),
  93
  94         KEY(2, 0, KEY_7),
  95         KEY(2, 1, KEY_8),
  96         KEY(2, 2, KEY_9),
  97         KEY(2, 3, KEY_F3),
  98         KEY(2, 4, KEY_DOWN),
  99         KEY(2, 5, KEY_F4),
 100
 101         KEY(3, 0, KEY_0),
 102         KEY(3, 1, KEY_OK),
 103         KEY(3, 2, KEY_ESC),
 104         KEY(3, 3, KEY_ENTER),
 105         KEY(3, 4, KEY_MENU),
 106         KEY(3, 5, KEY_BACK)
 107 };
 108
 109 static const struct matrix_keymap_data mx51_3ds_map_data __initconst = {
 110         .keymap         = mx51_3ds_board_keymap,
 111         .keymap_size    = ARRAY_SIZE(mx51_3ds_board_keymap),
 112 };
 113
 114 static int mx51_3ds_spi2_cs[] = {
 115         MXC_SPI_CS(0),
 116         MX51_3DS_ECSPI2_CS,
 117 };
 118
 119 static const struct spi_imx_master mx51_3ds_ecspi2_pdata __initconst = {
 120         .chipselect     = mx51_3ds_spi2_cs,
 121         .num_chipselect = ARRAY_SIZE(mx51_3ds_spi2_cs),
 122 };
 123
 124 static struct spi_board_info mx51_3ds_spi_nor_device[] = {
 125         {
 126          .modalias = "m25p80",
 127          .max_speed_hz = 25000000,      /* max spi clock (SCK) speed in HZ */
 128          .bus_num = 1,
 129          .chip_select = 1,
 130          .mode = SPI_MODE_0,
 131          .platform_data = NULL,},
 132 };
 133
 134 /*
 135  * Board specific initialization.
 136  */
 137 static void __init mx51_3ds_init(void)
 138 {
 139         imx51_soc_init();
 140
 141         mxc_iomux_v3_setup_multiple_pads(mx51_3ds_pads,
 142                                         ARRAY_SIZE(mx51_3ds_pads));
 143
 144         imx51_add_imx_uart(0, &uart_pdata);
 145         imx51_add_imx_uart(1, &uart_pdata);
 146         imx51_add_imx_uart(2, &uart_pdata);
 147
 148         imx51_add_ecspi(1, &mx51_3ds_ecspi2_pdata);
 149         spi_register_board_info(mx51_3ds_spi_nor_device,
 150                                 ARRAY_SIZE(mx51_3ds_spi_nor_device));
 151
 152         if (mxc_expio_init(MX51_CS5_BASE_ADDR, EXPIO_PARENT_INT))
 153                 printk(KERN_WARNING "Init of the debugboard failed, all "
 154                                     "devices on the board are unusable.\n");
 155
 156         imx51_add_sdhci_esdhc_imx(0, NULL);
 157         imx51_add_imx_keypad(&mx51_3ds_map_data);
 158         imx51_add_imx2_wdt(0, NULL);
 159 }
 160
 161 static void __init mx51_3ds_timer_init(void)
 162 {
 163         mx51_clocks_init(32768, 24000000, 22579200, 0);
 164 }
 165
 166 static struct sys_timer mx51_3ds_timer = {
 167         .init = mx51_3ds_timer_init,
 168 };
 169
 170 MACHINE_START(MX51_3DS, "Freescale MX51 3-Stack Board")
 171         /* Maintainer: Freescale Semiconductor, Inc. */
 172         .boot_params = MX51_PHYS_OFFSET + 0x100,
 173         .map_io = mx51_map_io,
 174         .init_early = imx51_init_early,
 175         .init_irq = mx51_init_irq,
 176         .timer = &mx51_3ds_timer,
 177         .init_machine = mx51_3ds_init,
 178 MACHINE_END