arch/arm/mach-imx/mach-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
  29 #define EXPIO_PARENT_INT        gpio_to_irq(IMX_GPIO_NR(1, 6))
  30 #define MX51_3DS_ECSPI2_CS      (GPIO_PORTC + 28)
  31
  32 static iomux_v3_cfg_t mx51_3ds_pads[] = {
  33         /* UART1 */
  34         MX51_PAD_UART1_RXD__UART1_RXD,
  35         MX51_PAD_UART1_TXD__UART1_TXD,
  36         MX51_PAD_UART1_RTS__UART1_RTS,
  37         MX51_PAD_UART1_CTS__UART1_CTS,
  38
  39         /* UART2 */
  40         MX51_PAD_UART2_RXD__UART2_RXD,
  41         MX51_PAD_UART2_TXD__UART2_TXD,
  42         MX51_PAD_EIM_D25__UART2_CTS,
  43         MX51_PAD_EIM_D26__UART2_RTS,
  44
  45         /* UART3 */
  46         MX51_PAD_UART3_RXD__UART3_RXD,
  47         MX51_PAD_UART3_TXD__UART3_TXD,
  48         MX51_PAD_EIM_D24__UART3_CTS,
  49         MX51_PAD_EIM_D27__UART3_RTS,
  50
  51         /* CPLD PARENT IRQ PIN */
  52         MX51_PAD_GPIO1_6__GPIO1_6,
  53
  54         /* KPP */
  55         MX51_PAD_KEY_ROW0__KEY_ROW0,
  56         MX51_PAD_KEY_ROW1__KEY_ROW1,
  57         MX51_PAD_KEY_ROW2__KEY_ROW2,
  58         MX51_PAD_KEY_ROW3__KEY_ROW3,
  59         MX51_PAD_KEY_COL0__KEY_COL0,
  60         MX51_PAD_KEY_COL1__KEY_COL1,
  61         MX51_PAD_KEY_COL2__KEY_COL2,
  62         MX51_PAD_KEY_COL3__KEY_COL3,
  63         MX51_PAD_KEY_COL4__KEY_COL4,
  64         MX51_PAD_KEY_COL5__KEY_COL5,
  65
  66         /* eCSPI2 */
  67         MX51_PAD_NANDF_RB2__ECSPI2_SCLK,
  68         MX51_PAD_NANDF_RB3__ECSPI2_MISO,
  69         MX51_PAD_NANDF_D15__ECSPI2_MOSI,
  70         MX51_PAD_NANDF_D12__GPIO3_28,
  71 };
  72
  73 /* Serial ports */
  74 static const struct imxuart_platform_data uart_pdata __initconst = {
  75         .flags = IMXUART_HAVE_RTSCTS,
  76 };
  77
  78 static int mx51_3ds_board_keymap[] = {
  79         KEY(0, 0, KEY_1),
  80         KEY(0, 1, KEY_2),
  81         KEY(0, 2, KEY_3),
  82         KEY(0, 3, KEY_F1),
  83         KEY(0, 4, KEY_UP),
  84         KEY(0, 5, KEY_F2),
  85
  86         KEY(1, 0, KEY_4),
  87         KEY(1, 1, KEY_5),
  88         KEY(1, 2, KEY_6),
  89         KEY(1, 3, KEY_LEFT),
  90         KEY(1, 4, KEY_SELECT),
  91         KEY(1, 5, KEY_RIGHT),
  92
  93         KEY(2, 0, KEY_7),
  94         KEY(2, 1, KEY_8),
  95         KEY(2, 2, KEY_9),
  96         KEY(2, 3, KEY_F3),
  97         KEY(2, 4, KEY_DOWN),
  98         KEY(2, 5, KEY_F4),
  99
 100         KEY(3, 0, KEY_0),
 101         KEY(3, 1, KEY_OK),
 102         KEY(3, 2, KEY_ESC),
 103         KEY(3, 3, KEY_ENTER),
 104         KEY(3, 4, KEY_MENU),
 105         KEY(3, 5, KEY_BACK)
 106 };
 107
 108 static const struct matrix_keymap_data mx51_3ds_map_data __initconst = {
 109         .keymap         = mx51_3ds_board_keymap,
 110         .keymap_size    = ARRAY_SIZE(mx51_3ds_board_keymap),
 111 };
 112
 113 static int mx51_3ds_spi2_cs[] = {
 114         MXC_SPI_CS(0),
 115         MX51_3DS_ECSPI2_CS,
 116 };
 117
 118 static const struct spi_imx_master mx51_3ds_ecspi2_pdata __initconst = {
 119         .chipselect     = mx51_3ds_spi2_cs,
 120         .num_chipselect = ARRAY_SIZE(mx51_3ds_spi2_cs),
 121 };
 122
 123 static struct spi_board_info mx51_3ds_spi_nor_device[] = {
 124         {
 125          .modalias = "m25p80",
 126          .max_speed_hz = 25000000,      /* max spi clock (SCK) speed in HZ */
 127          .bus_num = 1,
 128          .chip_select = 1,
 129          .mode = SPI_MODE_0,
 130          .platform_data = NULL,},
 131 };
 132
 133 /*
 134  * Board specific initialization.
 135  */
 136 static void __init mx51_3ds_init(void)
 137 {
 138         imx51_soc_init();
 139
 140         mxc_iomux_v3_setup_multiple_pads(mx51_3ds_pads,
 141                                         ARRAY_SIZE(mx51_3ds_pads));
 142
 143         imx51_add_imx_uart(0, &uart_pdata);
 144         imx51_add_imx_uart(1, &uart_pdata);
 145         imx51_add_imx_uart(2, &uart_pdata);
 146
 147         imx51_add_ecspi(1, &mx51_3ds_ecspi2_pdata);
 148         spi_register_board_info(mx51_3ds_spi_nor_device,
 149                                 ARRAY_SIZE(mx51_3ds_spi_nor_device));
 150
 151         if (mxc_expio_init(MX51_CS5_BASE_ADDR, EXPIO_PARENT_INT))
 152                 printk(KERN_WARNING "Init of the debugboard failed, all "
 153                                     "devices on the board are unusable.\n");
 154
 155         imx51_add_sdhci_esdhc_imx(0, NULL);
 156         imx51_add_imx_keypad(&mx51_3ds_map_data);
 157         imx51_add_imx2_wdt(0, NULL);
 158 }
 159
 160 static void __init mx51_3ds_timer_init(void)
 161 {
 162         mx51_clocks_init(32768, 24000000, 22579200, 0);
 163 }
 164
 165 static struct sys_timer mx51_3ds_timer = {
 166         .init = mx51_3ds_timer_init,
 167 };
 168
 169 MACHINE_START(MX51_3DS, "Freescale MX51 3-Stack Board")
 170         /* Maintainer: Freescale Semiconductor, Inc. */
 171         .atag_offset = 0x100,
 172         .map_io = mx51_map_io,
 173         .init_early = imx51_init_early,
 174         .init_irq = mx51_init_irq,
 175         .handle_irq = imx51_handle_irq,
 176         .timer = &mx51_3ds_timer,
 177         .init_machine = mx51_3ds_init,
 178         .restart        = mxc_restart,
 179 MACHINE_END